diff options
Diffstat (limited to 'contrib/sqlite3/sqlite3.c')
| -rw-r--r-- | contrib/sqlite3/sqlite3.c | 37261 |
1 files changed, 26742 insertions, 10519 deletions
diff --git a/contrib/sqlite3/sqlite3.c b/contrib/sqlite3/sqlite3.c index eb8d7d5cd438..139ee46a6a94 100644 --- a/contrib/sqlite3/sqlite3.c +++ b/contrib/sqlite3/sqlite3.c @@ -1,6 +1,6 @@ /****************************************************************************** ** This file is an amalgamation of many separate C source files from SQLite -** version 3.38.5. By combining all the individual C code files into this +** version 3.45.1. By combining all the individual C code files into this ** single large file, the entire code can be compiled as a single translation ** unit. This allows many compilers to do optimizations that would not be ** possible if the files were compiled separately. Performance improvements @@ -16,6 +16,9 @@ ** if you want a wrapper to interface SQLite with your choice of programming ** language. The code for the "sqlite3" command-line shell is also in a ** separate file. This file contains only code for the core SQLite library. +** +** The content in this amalgamation comes from Fossil check-in +** e876e51a0ed5c5b3126f52e532044363a014. */ #define SQLITE_CORE 1 #define SQLITE_AMALGAMATION 1 @@ -50,11 +53,11 @@ ** used on lines of code that actually ** implement parts of coverage testing. ** -** OPTIMIZATION-IF-TRUE - This branch is allowed to alway be false +** OPTIMIZATION-IF-TRUE - This branch is allowed to always be false ** and the correct answer is still obtained, ** though perhaps more slowly. ** -** OPTIMIZATION-IF-FALSE - This branch is allowed to alway be true +** OPTIMIZATION-IF-FALSE - This branch is allowed to always be true ** and the correct answer is still obtained, ** though perhaps more slowly. ** @@ -123,6 +126,10 @@ #define SQLITE_4_BYTE_ALIGNED_MALLOC #endif /* defined(_MSC_VER) && !defined(_WIN64) */ +#if !defined(HAVE_LOG2) && defined(_MSC_VER) && _MSC_VER<1800 +#define HAVE_LOG2 0 +#endif /* !defined(HAVE_LOG2) && defined(_MSC_VER) && _MSC_VER<1800 */ + #endif /* SQLITE_MSVC_H */ /************** End of msvc.h ************************************************/ @@ -452,9 +459,9 @@ extern "C" { ** [sqlite3_libversion_number()], [sqlite3_sourceid()], ** [sqlite_version()] and [sqlite_source_id()]. */ -#define SQLITE_VERSION "3.38.5" -#define SQLITE_VERSION_NUMBER 3038005 -#define SQLITE_SOURCE_ID "2022-05-06 15:25:27 78d9c993d404cdfaa7fdd2973fa1052e3da9f66215cff9c5540ebe55c407d9fe" +#define SQLITE_VERSION "3.45.1" +#define SQLITE_VERSION_NUMBER 3045001 +#define SQLITE_SOURCE_ID "2024-01-30 16:01:20 e876e51a0ed5c5b3126f52e532044363a014bc594cfefa87ffb5b82257cc467a" /* ** CAPI3REF: Run-Time Library Version Numbers @@ -834,6 +841,7 @@ SQLITE_API int sqlite3_exec( #define SQLITE_IOERR_ROLLBACK_ATOMIC (SQLITE_IOERR | (31<<8)) #define SQLITE_IOERR_DATA (SQLITE_IOERR | (32<<8)) #define SQLITE_IOERR_CORRUPTFS (SQLITE_IOERR | (33<<8)) +#define SQLITE_IOERR_IN_PAGE (SQLITE_IOERR | (34<<8)) #define SQLITE_LOCKED_SHAREDCACHE (SQLITE_LOCKED | (1<<8)) #define SQLITE_LOCKED_VTAB (SQLITE_LOCKED | (2<<8)) #define SQLITE_BUSY_RECOVERY (SQLITE_BUSY | (1<<8)) @@ -869,6 +877,7 @@ SQLITE_API int sqlite3_exec( #define SQLITE_CONSTRAINT_DATATYPE (SQLITE_CONSTRAINT |(12<<8)) #define SQLITE_NOTICE_RECOVER_WAL (SQLITE_NOTICE | (1<<8)) #define SQLITE_NOTICE_RECOVER_ROLLBACK (SQLITE_NOTICE | (2<<8)) +#define SQLITE_NOTICE_RBU (SQLITE_NOTICE | (3<<8)) #define SQLITE_WARNING_AUTOINDEX (SQLITE_WARNING | (1<<8)) #define SQLITE_AUTH_USER (SQLITE_AUTH | (1<<8)) #define SQLITE_OK_LOAD_PERMANENTLY (SQLITE_OK | (1<<8)) @@ -976,13 +985,17 @@ SQLITE_API int sqlite3_exec( ** ** SQLite uses one of these integer values as the second ** argument to calls it makes to the xLock() and xUnlock() methods -** of an [sqlite3_io_methods] object. +** of an [sqlite3_io_methods] object. These values are ordered from +** lest restrictive to most restrictive. +** +** The argument to xLock() is always SHARED or higher. The argument to +** xUnlock is either SHARED or NONE. */ -#define SQLITE_LOCK_NONE 0 -#define SQLITE_LOCK_SHARED 1 -#define SQLITE_LOCK_RESERVED 2 -#define SQLITE_LOCK_PENDING 3 -#define SQLITE_LOCK_EXCLUSIVE 4 +#define SQLITE_LOCK_NONE 0 /* xUnlock() only */ +#define SQLITE_LOCK_SHARED 1 /* xLock() or xUnlock() */ +#define SQLITE_LOCK_RESERVED 2 /* xLock() only */ +#define SQLITE_LOCK_PENDING 3 /* xLock() only */ +#define SQLITE_LOCK_EXCLUSIVE 4 /* xLock() only */ /* ** CAPI3REF: Synchronization Type Flags @@ -1060,7 +1073,14 @@ struct sqlite3_file { ** <li> [SQLITE_LOCK_PENDING], or ** <li> [SQLITE_LOCK_EXCLUSIVE]. ** </ul> -** xLock() increases the lock. xUnlock() decreases the lock. +** xLock() upgrades the database file lock. In other words, xLock() moves the +** database file lock in the direction NONE toward EXCLUSIVE. The argument to +** xLock() is always on of SHARED, RESERVED, PENDING, or EXCLUSIVE, never +** SQLITE_LOCK_NONE. If the database file lock is already at or above the +** requested lock, then the call to xLock() is a no-op. +** xUnlock() downgrades the database file lock to either SHARED or NONE. +* If the lock is already at or below the requested lock state, then the call +** to xUnlock() is a no-op. ** The xCheckReservedLock() method checks whether any database connection, ** either in this process or in some other process, is holding a RESERVED, ** PENDING, or EXCLUSIVE lock on the file. It returns true @@ -1165,9 +1185,8 @@ struct sqlite3_io_methods { ** opcode causes the xFileControl method to write the current state of ** the lock (one of [SQLITE_LOCK_NONE], [SQLITE_LOCK_SHARED], ** [SQLITE_LOCK_RESERVED], [SQLITE_LOCK_PENDING], or [SQLITE_LOCK_EXCLUSIVE]) -** into an integer that the pArg argument points to. This capability -** is used during testing and is only available when the SQLITE_TEST -** compile-time option is used. +** into an integer that the pArg argument points to. +** This capability is only available if SQLite is compiled with [SQLITE_DEBUG]. ** ** <li>[[SQLITE_FCNTL_SIZE_HINT]] ** The [SQLITE_FCNTL_SIZE_HINT] opcode is used by SQLite to give the VFS @@ -1471,7 +1490,6 @@ struct sqlite3_io_methods { ** in wal mode after the client has finished copying pages from the wal ** file to the database file, but before the *-shm file is updated to ** record the fact that the pages have been checkpointed. -** </ul> ** ** <li>[[SQLITE_FCNTL_EXTERNAL_READER]] ** The EXPERIMENTAL [SQLITE_FCNTL_EXTERNAL_READER] opcode is used to detect @@ -1484,10 +1502,16 @@ struct sqlite3_io_methods { ** the database is not a wal-mode db, or if there is no such connection in any ** other process. This opcode cannot be used to detect transactions opened ** by clients within the current process, only within other processes. -** </ul> ** ** <li>[[SQLITE_FCNTL_CKSM_FILE]] -** Used by the cksmvfs VFS module only. +** The [SQLITE_FCNTL_CKSM_FILE] opcode is for use internally by the +** [checksum VFS shim] only. +** +** <li>[[SQLITE_FCNTL_RESET_CACHE]] +** If there is currently no transaction open on the database, and the +** database is not a temp db, then the [SQLITE_FCNTL_RESET_CACHE] file-control +** purges the contents of the in-memory page cache. If there is an open +** transaction, or if the db is a temp-db, this opcode is a no-op, not an error. ** </ul> */ #define SQLITE_FCNTL_LOCKSTATE 1 @@ -1530,6 +1554,7 @@ struct sqlite3_io_methods { #define SQLITE_FCNTL_CKPT_START 39 #define SQLITE_FCNTL_EXTERNAL_READER 40 #define SQLITE_FCNTL_CKSM_FILE 41 +#define SQLITE_FCNTL_RESET_CACHE 42 /* deprecated names */ #define SQLITE_GET_LOCKPROXYFILE SQLITE_FCNTL_GET_LOCKPROXYFILE @@ -1560,6 +1585,26 @@ typedef struct sqlite3_mutex sqlite3_mutex; typedef struct sqlite3_api_routines sqlite3_api_routines; /* +** CAPI3REF: File Name +** +** Type [sqlite3_filename] is used by SQLite to pass filenames to the +** xOpen method of a [VFS]. It may be cast to (const char*) and treated +** as a normal, nul-terminated, UTF-8 buffer containing the filename, but +** may also be passed to special APIs such as: +** +** <ul> +** <li> sqlite3_filename_database() +** <li> sqlite3_filename_journal() +** <li> sqlite3_filename_wal() +** <li> sqlite3_uri_parameter() +** <li> sqlite3_uri_boolean() +** <li> sqlite3_uri_int64() +** <li> sqlite3_uri_key() +** </ul> +*/ +typedef const char *sqlite3_filename; + +/* ** CAPI3REF: OS Interface Object ** ** An instance of the sqlite3_vfs object defines the interface between @@ -1737,7 +1782,7 @@ struct sqlite3_vfs { sqlite3_vfs *pNext; /* Next registered VFS */ const char *zName; /* Name of this virtual file system */ void *pAppData; /* Pointer to application-specific data */ - int (*xOpen)(sqlite3_vfs*, const char *zName, sqlite3_file*, + int (*xOpen)(sqlite3_vfs*, sqlite3_filename zName, sqlite3_file*, int flags, int *pOutFlags); int (*xDelete)(sqlite3_vfs*, const char *zName, int syncDir); int (*xAccess)(sqlite3_vfs*, const char *zName, int flags, int *pResOut); @@ -1924,20 +1969,23 @@ SQLITE_API int sqlite3_os_end(void); ** must ensure that no other SQLite interfaces are invoked by other ** threads while sqlite3_config() is running.</b> ** -** The sqlite3_config() interface -** may only be invoked prior to library initialization using -** [sqlite3_initialize()] or after shutdown by [sqlite3_shutdown()]. -** ^If sqlite3_config() is called after [sqlite3_initialize()] and before -** [sqlite3_shutdown()] then it will return SQLITE_MISUSE. -** Note, however, that ^sqlite3_config() can be called as part of the -** implementation of an application-defined [sqlite3_os_init()]. -** ** The first argument to sqlite3_config() is an integer ** [configuration option] that determines ** what property of SQLite is to be configured. Subsequent arguments ** vary depending on the [configuration option] ** in the first argument. ** +** For most configuration options, the sqlite3_config() interface +** may only be invoked prior to library initialization using +** [sqlite3_initialize()] or after shutdown by [sqlite3_shutdown()]. +** The exceptional configuration options that may be invoked at any time +** are called "anytime configuration options". +** ^If sqlite3_config() is called after [sqlite3_initialize()] and before +** [sqlite3_shutdown()] with a first argument that is not an anytime +** configuration option, then the sqlite3_config() call will return SQLITE_MISUSE. +** Note, however, that ^sqlite3_config() can be called as part of the +** implementation of an application-defined [sqlite3_os_init()]. +** ** ^When a configuration option is set, sqlite3_config() returns [SQLITE_OK]. ** ^If the option is unknown or SQLite is unable to set the option ** then this routine returns a non-zero [error code]. @@ -2045,6 +2093,23 @@ struct sqlite3_mem_methods { ** These constants are the available integer configuration options that ** can be passed as the first argument to the [sqlite3_config()] interface. ** +** Most of the configuration options for sqlite3_config() +** will only work if invoked prior to [sqlite3_initialize()] or after +** [sqlite3_shutdown()]. The few exceptions to this rule are called +** "anytime configuration options". +** ^Calling [sqlite3_config()] with a first argument that is not an +** anytime configuration option in between calls to [sqlite3_initialize()] and +** [sqlite3_shutdown()] is a no-op that returns SQLITE_MISUSE. +** +** The set of anytime configuration options can change (by insertions +** and/or deletions) from one release of SQLite to the next. +** As of SQLite version 3.42.0, the complete set of anytime configuration +** options is: +** <ul> +** <li> SQLITE_CONFIG_LOG +** <li> SQLITE_CONFIG_PCACHE_HDRSZ +** </ul> +** ** New configuration options may be added in future releases of SQLite. ** Existing configuration options might be discontinued. Applications ** should check the return code from [sqlite3_config()] to make sure that @@ -2375,7 +2440,7 @@ struct sqlite3_mem_methods { ** is stored in each sorted record and the required column values loaded ** from the database as records are returned in sorted order. The default ** value for this option is to never use this optimization. Specifying a -** negative value for this option restores the default behaviour. +** negative value for this option restores the default behavior. ** This option is only available if SQLite is compiled with the ** [SQLITE_ENABLE_SORTER_REFERENCES] compile-time option. ** @@ -2391,28 +2456,28 @@ struct sqlite3_mem_methods { ** compile-time option is not set, then the default maximum is 1073741824. ** </dl> */ -#define SQLITE_CONFIG_SINGLETHREAD 1 /* nil */ -#define SQLITE_CONFIG_MULTITHREAD 2 /* nil */ -#define SQLITE_CONFIG_SERIALIZED 3 /* nil */ -#define SQLITE_CONFIG_MALLOC 4 /* sqlite3_mem_methods* */ -#define SQLITE_CONFIG_GETMALLOC 5 /* sqlite3_mem_methods* */ -#define SQLITE_CONFIG_SCRATCH 6 /* No longer used */ -#define SQLITE_CONFIG_PAGECACHE 7 /* void*, int sz, int N */ -#define SQLITE_CONFIG_HEAP 8 /* void*, int nByte, int min */ -#define SQLITE_CONFIG_MEMSTATUS 9 /* boolean */ -#define SQLITE_CONFIG_MUTEX 10 /* sqlite3_mutex_methods* */ -#define SQLITE_CONFIG_GETMUTEX 11 /* sqlite3_mutex_methods* */ -/* previously SQLITE_CONFIG_CHUNKALLOC 12 which is now unused. */ -#define SQLITE_CONFIG_LOOKASIDE 13 /* int int */ -#define SQLITE_CONFIG_PCACHE 14 /* no-op */ -#define SQLITE_CONFIG_GETPCACHE 15 /* no-op */ -#define SQLITE_CONFIG_LOG 16 /* xFunc, void* */ -#define SQLITE_CONFIG_URI 17 /* int */ -#define SQLITE_CONFIG_PCACHE2 18 /* sqlite3_pcache_methods2* */ -#define SQLITE_CONFIG_GETPCACHE2 19 /* sqlite3_pcache_methods2* */ +#define SQLITE_CONFIG_SINGLETHREAD 1 /* nil */ +#define SQLITE_CONFIG_MULTITHREAD 2 /* nil */ +#define SQLITE_CONFIG_SERIALIZED 3 /* nil */ +#define SQLITE_CONFIG_MALLOC 4 /* sqlite3_mem_methods* */ +#define SQLITE_CONFIG_GETMALLOC 5 /* sqlite3_mem_methods* */ +#define SQLITE_CONFIG_SCRATCH 6 /* No longer used */ +#define SQLITE_CONFIG_PAGECACHE 7 /* void*, int sz, int N */ +#define SQLITE_CONFIG_HEAP 8 /* void*, int nByte, int min */ +#define SQLITE_CONFIG_MEMSTATUS 9 /* boolean */ +#define SQLITE_CONFIG_MUTEX 10 /* sqlite3_mutex_methods* */ +#define SQLITE_CONFIG_GETMUTEX 11 /* sqlite3_mutex_methods* */ +/* previously SQLITE_CONFIG_CHUNKALLOC 12 which is now unused. */ +#define SQLITE_CONFIG_LOOKASIDE 13 /* int int */ +#define SQLITE_CONFIG_PCACHE 14 /* no-op */ +#define SQLITE_CONFIG_GETPCACHE 15 /* no-op */ +#define SQLITE_CONFIG_LOG 16 /* xFunc, void* */ +#define SQLITE_CONFIG_URI 17 /* int */ +#define SQLITE_CONFIG_PCACHE2 18 /* sqlite3_pcache_methods2* */ +#define SQLITE_CONFIG_GETPCACHE2 19 /* sqlite3_pcache_methods2* */ #define SQLITE_CONFIG_COVERING_INDEX_SCAN 20 /* int */ -#define SQLITE_CONFIG_SQLLOG 21 /* xSqllog, void* */ -#define SQLITE_CONFIG_MMAP_SIZE 22 /* sqlite3_int64, sqlite3_int64 */ +#define SQLITE_CONFIG_SQLLOG 21 /* xSqllog, void* */ +#define SQLITE_CONFIG_MMAP_SIZE 22 /* sqlite3_int64, sqlite3_int64 */ #define SQLITE_CONFIG_WIN32_HEAPSIZE 23 /* int nByte */ #define SQLITE_CONFIG_PCACHE_HDRSZ 24 /* int *psz */ #define SQLITE_CONFIG_PMASZ 25 /* unsigned int szPma */ @@ -2453,7 +2518,7 @@ struct sqlite3_mem_methods { ** configuration for a database connection can only be changed when that ** connection is not currently using lookaside memory, or in other words ** when the "current value" returned by -** [sqlite3_db_status](D,[SQLITE_CONFIG_LOOKASIDE],...) is zero. +** [sqlite3_db_status](D,[SQLITE_DBSTATUS_LOOKASIDE_USED],...) is zero. ** Any attempt to change the lookaside memory configuration when lookaside ** memory is in use leaves the configuration unchanged and returns ** [SQLITE_BUSY].)^</dd> @@ -2550,7 +2615,7 @@ struct sqlite3_mem_methods { ** database handle, SQLite checks if this will mean that there are now no ** connections at all to the database. If so, it performs a checkpoint ** operation before closing the connection. This option may be used to -** override this behaviour. The first parameter passed to this operation +** override this behavior. The first parameter passed to this operation ** is an integer - positive to disable checkpoints-on-close, or zero (the ** default) to enable them, and negative to leave the setting unchanged. ** The second parameter is a pointer to an integer @@ -2603,8 +2668,12 @@ struct sqlite3_mem_methods { ** <li> sqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 0, 0); ** </ol> ** Because resetting a database is destructive and irreversible, the -** process requires the use of this obscure API and multiple steps to help -** ensure that it does not happen by accident. +** process requires the use of this obscure API and multiple steps to +** help ensure that it does not happen by accident. Because this +** feature must be capable of resetting corrupt databases, and +** shutting down virtual tables may require access to that corrupt +** storage, the library must abandon any installed virtual tables +** without calling their xDestroy() methods. ** ** [[SQLITE_DBCONFIG_DEFENSIVE]] <dt>SQLITE_DBCONFIG_DEFENSIVE</dt> ** <dd>The SQLITE_DBCONFIG_DEFENSIVE option activates or deactivates the @@ -2615,6 +2684,7 @@ struct sqlite3_mem_methods { ** <ul> ** <li> The [PRAGMA writable_schema=ON] statement. ** <li> The [PRAGMA journal_mode=OFF] statement. +** <li> The [PRAGMA schema_version=N] statement. ** <li> Writes to the [sqlite_dbpage] virtual table. ** <li> Direct writes to [shadow tables]. ** </ul> @@ -2642,7 +2712,7 @@ struct sqlite3_mem_methods { ** </dd> ** ** [[SQLITE_DBCONFIG_DQS_DML]] -** <dt>SQLITE_DBCONFIG_DQS_DML</td> +** <dt>SQLITE_DBCONFIG_DQS_DML</dt> ** <dd>The SQLITE_DBCONFIG_DQS_DML option activates or deactivates ** the legacy [double-quoted string literal] misfeature for DML statements ** only, that is DELETE, INSERT, SELECT, and UPDATE statements. The @@ -2651,7 +2721,7 @@ struct sqlite3_mem_methods { ** </dd> ** ** [[SQLITE_DBCONFIG_DQS_DDL]] -** <dt>SQLITE_DBCONFIG_DQS_DDL</td> +** <dt>SQLITE_DBCONFIG_DQS_DDL</dt> ** <dd>The SQLITE_DBCONFIG_DQS option activates or deactivates ** the legacy [double-quoted string literal] misfeature for DDL statements, ** such as CREATE TABLE and CREATE INDEX. The @@ -2660,7 +2730,7 @@ struct sqlite3_mem_methods { ** </dd> ** ** [[SQLITE_DBCONFIG_TRUSTED_SCHEMA]] -** <dt>SQLITE_DBCONFIG_TRUSTED_SCHEMA</td> +** <dt>SQLITE_DBCONFIG_TRUSTED_SCHEMA</dt> ** <dd>The SQLITE_DBCONFIG_TRUSTED_SCHEMA option tells SQLite to ** assume that database schemas are untainted by malicious content. ** When the SQLITE_DBCONFIG_TRUSTED_SCHEMA option is disabled, SQLite @@ -2680,7 +2750,7 @@ struct sqlite3_mem_methods { ** </dd> ** ** [[SQLITE_DBCONFIG_LEGACY_FILE_FORMAT]] -** <dt>SQLITE_DBCONFIG_LEGACY_FILE_FORMAT</td> +** <dt>SQLITE_DBCONFIG_LEGACY_FILE_FORMAT</dt> ** <dd>The SQLITE_DBCONFIG_LEGACY_FILE_FORMAT option activates or deactivates ** the legacy file format flag. When activated, this flag causes all newly ** created database file to have a schema format version number (the 4-byte @@ -2689,7 +2759,7 @@ struct sqlite3_mem_methods { ** any SQLite version back to 3.0.0 ([dateof:3.0.0]). Without this setting, ** newly created databases are generally not understandable by SQLite versions ** prior to 3.3.0 ([dateof:3.3.0]). As these words are written, there -** is now scarcely any need to generated database files that are compatible +** is now scarcely any need to generate database files that are compatible ** all the way back to version 3.0.0, and so this setting is of little ** practical use, but is provided so that SQLite can continue to claim the ** ability to generate new database files that are compatible with version @@ -2698,8 +2768,40 @@ struct sqlite3_mem_methods { ** the [VACUUM] command will fail with an obscure error when attempting to ** process a table with generated columns and a descending index. This is ** not considered a bug since SQLite versions 3.3.0 and earlier do not support -** either generated columns or decending indexes. +** either generated columns or descending indexes. +** </dd> +** +** [[SQLITE_DBCONFIG_STMT_SCANSTATUS]] +** <dt>SQLITE_DBCONFIG_STMT_SCANSTATUS</dt> +** <dd>The SQLITE_DBCONFIG_STMT_SCANSTATUS option is only useful in +** SQLITE_ENABLE_STMT_SCANSTATUS builds. In this case, it sets or clears +** a flag that enables collection of the sqlite3_stmt_scanstatus_v2() +** statistics. For statistics to be collected, the flag must be set on +** the database handle both when the SQL statement is prepared and when it +** is stepped. The flag is set (collection of statistics is enabled) +** by default. This option takes two arguments: an integer and a pointer to +** an integer.. The first argument is 1, 0, or -1 to enable, disable, or +** leave unchanged the statement scanstatus option. If the second argument +** is not NULL, then the value of the statement scanstatus setting after +** processing the first argument is written into the integer that the second +** argument points to. +** </dd> +** +** [[SQLITE_DBCONFIG_REVERSE_SCANORDER]] +** <dt>SQLITE_DBCONFIG_REVERSE_SCANORDER</dt> +** <dd>The SQLITE_DBCONFIG_REVERSE_SCANORDER option changes the default order +** in which tables and indexes are scanned so that the scans start at the end +** and work toward the beginning rather than starting at the beginning and +** working toward the end. Setting SQLITE_DBCONFIG_REVERSE_SCANORDER is the +** same as setting [PRAGMA reverse_unordered_selects]. This option takes +** two arguments which are an integer and a pointer to an integer. The first +** argument is 1, 0, or -1 to enable, disable, or leave unchanged the +** reverse scan order flag, respectively. If the second argument is not NULL, +** then 0 or 1 is written into the integer that the second argument points to +** depending on if the reverse scan order flag is set after processing the +** first argument. ** </dd> +** ** </dl> */ #define SQLITE_DBCONFIG_MAINDBNAME 1000 /* const char* */ @@ -2720,7 +2822,9 @@ struct sqlite3_mem_methods { #define SQLITE_DBCONFIG_ENABLE_VIEW 1015 /* int int* */ #define SQLITE_DBCONFIG_LEGACY_FILE_FORMAT 1016 /* int int* */ #define SQLITE_DBCONFIG_TRUSTED_SCHEMA 1017 /* int int* */ -#define SQLITE_DBCONFIG_MAX 1017 /* Largest DBCONFIG */ +#define SQLITE_DBCONFIG_STMT_SCANSTATUS 1018 /* int int* */ +#define SQLITE_DBCONFIG_REVERSE_SCANORDER 1019 /* int int* */ +#define SQLITE_DBCONFIG_MAX 1019 /* Largest DBCONFIG */ /* ** CAPI3REF: Enable Or Disable Extended Result Codes @@ -2942,8 +3046,13 @@ SQLITE_API sqlite3_int64 sqlite3_total_changes64(sqlite3*); ** ^A call to sqlite3_interrupt(D) that occurs when there are no running ** SQL statements is a no-op and has no effect on SQL statements ** that are started after the sqlite3_interrupt() call returns. +** +** ^The [sqlite3_is_interrupted(D)] interface can be used to determine whether +** or not an interrupt is currently in effect for [database connection] D. +** It returns 1 if an interrupt is currently in effect, or 0 otherwise. */ SQLITE_API void sqlite3_interrupt(sqlite3*); +SQLITE_API int sqlite3_is_interrupted(sqlite3*); /* ** CAPI3REF: Determine If An SQL Statement Is Complete @@ -3561,8 +3670,8 @@ SQLITE_API SQLITE_DEPRECATED void *sqlite3_profile(sqlite3*, ** <dd>^An SQLITE_TRACE_PROFILE callback provides approximately the same ** information as is provided by the [sqlite3_profile()] callback. ** ^The P argument is a pointer to the [prepared statement] and the -** X argument points to a 64-bit integer which is the estimated of -** the number of nanosecond that the prepared statement took to run. +** X argument points to a 64-bit integer which is approximately +** the number of nanoseconds that the prepared statement took to run. ** ^The SQLITE_TRACE_PROFILE callback is invoked when the statement finishes. ** ** [[SQLITE_TRACE_ROW]] <dt>SQLITE_TRACE_ROW</dt> @@ -3594,8 +3703,10 @@ SQLITE_API SQLITE_DEPRECATED void *sqlite3_profile(sqlite3*, ** M argument should be the bitwise OR-ed combination of ** zero or more [SQLITE_TRACE] constants. ** -** ^Each call to either sqlite3_trace() or sqlite3_trace_v2() overrides -** (cancels) any prior calls to sqlite3_trace() or sqlite3_trace_v2(). +** ^Each call to either sqlite3_trace(D,X,P) or sqlite3_trace_v2(D,M,X,P) +** overrides (cancels) all prior calls to sqlite3_trace(D,X,P) or +** sqlite3_trace_v2(D,M,X,P) for the [database connection] D. Each +** database connection may have at most one trace callback. ** ** ^The X callback is invoked whenever any of the events identified by ** mask M occur. ^The integer return value from the callback is currently @@ -3625,7 +3736,7 @@ SQLITE_API int sqlite3_trace_v2( ** ** ^The sqlite3_progress_handler(D,N,X,P) interface causes the callback ** function X to be invoked periodically during long running calls to -** [sqlite3_exec()], [sqlite3_step()] and [sqlite3_get_table()] for +** [sqlite3_step()] and [sqlite3_prepare()] and similar for ** database connection D. An example use for this ** interface is to keep a GUI updated during a large query. ** @@ -3650,6 +3761,13 @@ SQLITE_API int sqlite3_trace_v2( ** Note that [sqlite3_prepare_v2()] and [sqlite3_step()] both modify their ** database connections for the meaning of "modify" in this paragraph. ** +** The progress handler callback would originally only be invoked from the +** bytecode engine. It still might be invoked during [sqlite3_prepare()] +** and similar because those routines might force a reparse of the schema +** which involves running the bytecode engine. However, beginning with +** SQLite version 3.41.0, the progress handler callback might also be +** invoked directly from [sqlite3_prepare()] while analyzing and generating +** code for complex queries. */ SQLITE_API void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*); @@ -3686,13 +3804,18 @@ SQLITE_API void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*); ** ** <dl> ** ^(<dt>[SQLITE_OPEN_READONLY]</dt> -** <dd>The database is opened in read-only mode. If the database does not -** already exist, an error is returned.</dd>)^ +** <dd>The database is opened in read-only mode. If the database does +** not already exist, an error is returned.</dd>)^ ** ** ^(<dt>[SQLITE_OPEN_READWRITE]</dt> -** <dd>The database is opened for reading and writing if possible, or reading -** only if the file is write protected by the operating system. In either -** case the database must already exist, otherwise an error is returned.</dd>)^ +** <dd>The database is opened for reading and writing if possible, or +** reading only if the file is write protected by the operating +** system. In either case the database must already exist, otherwise +** an error is returned. For historical reasons, if opening in +** read-write mode fails due to OS-level permissions, an attempt is +** made to open it in read-only mode. [sqlite3_db_readonly()] can be +** used to determine whether the database is actually +** read-write.</dd>)^ ** ** ^(<dt>[SQLITE_OPEN_READWRITE] | [SQLITE_OPEN_CREATE]</dt> ** <dd>The database is opened for reading and writing, and is created if @@ -3730,6 +3853,9 @@ SQLITE_API void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*); ** <dd>The database is opened [shared cache] enabled, overriding ** the default shared cache setting provided by ** [sqlite3_enable_shared_cache()].)^ +** The [use of shared cache mode is discouraged] and hence shared cache +** capabilities may be omitted from many builds of SQLite. In such cases, +** this option is a no-op. ** ** ^(<dt>[SQLITE_OPEN_PRIVATECACHE]</dt> ** <dd>The database is opened [shared cache] disabled, overriding @@ -3745,7 +3871,7 @@ SQLITE_API void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*); ** to return an extended result code.</dd> ** ** [[OPEN_NOFOLLOW]] ^(<dt>[SQLITE_OPEN_NOFOLLOW]</dt> -** <dd>The database filename is not allowed to be a symbolic link</dd> +** <dd>The database filename is not allowed to contain a symbolic link</dd> ** </dl>)^ ** ** If the 3rd parameter to sqlite3_open_v2() is not one of the @@ -3949,7 +4075,7 @@ SQLITE_API int sqlite3_open_v2( ** as F) must be one of: ** <ul> ** <li> A database filename pointer created by the SQLite core and -** passed into the xOpen() method of a VFS implemention, or +** passed into the xOpen() method of a VFS implementation, or ** <li> A filename obtained from [sqlite3_db_filename()], or ** <li> A new filename constructed using [sqlite3_create_filename()]. ** </ul> @@ -4004,10 +4130,10 @@ SQLITE_API int sqlite3_open_v2( ** ** See the [URI filename] documentation for additional information. */ -SQLITE_API const char *sqlite3_uri_parameter(const char *zFilename, const char *zParam); -SQLITE_API int sqlite3_uri_boolean(const char *zFile, const char *zParam, int bDefault); -SQLITE_API sqlite3_int64 sqlite3_uri_int64(const char*, const char*, sqlite3_int64); -SQLITE_API const char *sqlite3_uri_key(const char *zFilename, int N); +SQLITE_API const char *sqlite3_uri_parameter(sqlite3_filename z, const char *zParam); +SQLITE_API int sqlite3_uri_boolean(sqlite3_filename z, const char *zParam, int bDefault); +SQLITE_API sqlite3_int64 sqlite3_uri_int64(sqlite3_filename, const char*, sqlite3_int64); +SQLITE_API const char *sqlite3_uri_key(sqlite3_filename z, int N); /* ** CAPI3REF: Translate filenames @@ -4036,9 +4162,9 @@ SQLITE_API const char *sqlite3_uri_key(const char *zFilename, int N); ** return value from [sqlite3_db_filename()], then the result is ** undefined and is likely a memory access violation. */ -SQLITE_API const char *sqlite3_filename_database(const char*); -SQLITE_API const char *sqlite3_filename_journal(const char*); -SQLITE_API const char *sqlite3_filename_wal(const char*); +SQLITE_API const char *sqlite3_filename_database(sqlite3_filename); +SQLITE_API const char *sqlite3_filename_journal(sqlite3_filename); +SQLITE_API const char *sqlite3_filename_wal(sqlite3_filename); /* ** CAPI3REF: Database File Corresponding To A Journal @@ -4062,7 +4188,7 @@ SQLITE_API sqlite3_file *sqlite3_database_file_object(const char*); /* ** CAPI3REF: Create and Destroy VFS Filenames ** -** These interfces are provided for use by [VFS shim] implementations and +** These interfaces are provided for use by [VFS shim] implementations and ** are not useful outside of that context. ** ** The sqlite3_create_filename(D,J,W,N,P) allocates memory to hold a version of @@ -4104,14 +4230,14 @@ SQLITE_API sqlite3_file *sqlite3_database_file_object(const char*); ** then the corresponding [sqlite3_module.xClose() method should also be ** invoked prior to calling sqlite3_free_filename(Y). */ -SQLITE_API char *sqlite3_create_filename( +SQLITE_API sqlite3_filename sqlite3_create_filename( const char *zDatabase, const char *zJournal, const char *zWal, int nParam, const char **azParam ); -SQLITE_API void sqlite3_free_filename(char*); +SQLITE_API void sqlite3_free_filename(sqlite3_filename); /* ** CAPI3REF: Error Codes And Messages @@ -4141,14 +4267,17 @@ SQLITE_API void sqlite3_free_filename(char*); ** </ul> ** ** ^The sqlite3_errmsg() and sqlite3_errmsg16() return English-language -** text that describes the error, as either UTF-8 or UTF-16 respectively. +** text that describes the error, as either UTF-8 or UTF-16 respectively, +** or NULL if no error message is available. +** (See how SQLite handles [invalid UTF] for exceptions to this rule.) ** ^(Memory to hold the error message string is managed internally. ** The application does not need to worry about freeing the result. ** However, the error string might be overwritten or deallocated by ** subsequent calls to other SQLite interface functions.)^ ** -** ^The sqlite3_errstr() interface returns the English-language text -** that describes the [result code], as UTF-8. +** ^The sqlite3_errstr(E) interface returns the English-language text +** that describes the [result code] E, as UTF-8, or NULL if E is not an +** result code for which a text error message is available. ** ^(Memory to hold the error message string is managed internally ** and must not be freed by the application)^. ** @@ -4610,6 +4739,41 @@ SQLITE_API int sqlite3_stmt_readonly(sqlite3_stmt *pStmt); SQLITE_API int sqlite3_stmt_isexplain(sqlite3_stmt *pStmt); /* +** CAPI3REF: Change The EXPLAIN Setting For A Prepared Statement +** METHOD: sqlite3_stmt +** +** The sqlite3_stmt_explain(S,E) interface changes the EXPLAIN +** setting for [prepared statement] S. If E is zero, then S becomes +** a normal prepared statement. If E is 1, then S behaves as if +** its SQL text began with "[EXPLAIN]". If E is 2, then S behaves as if +** its SQL text began with "[EXPLAIN QUERY PLAN]". +** +** Calling sqlite3_stmt_explain(S,E) might cause S to be reprepared. +** SQLite tries to avoid a reprepare, but a reprepare might be necessary +** on the first transition into EXPLAIN or EXPLAIN QUERY PLAN mode. +** +** Because of the potential need to reprepare, a call to +** sqlite3_stmt_explain(S,E) will fail with SQLITE_ERROR if S cannot be +** reprepared because it was created using [sqlite3_prepare()] instead of +** the newer [sqlite3_prepare_v2()] or [sqlite3_prepare_v3()] interfaces and +** hence has no saved SQL text with which to reprepare. +** +** Changing the explain setting for a prepared statement does not change +** the original SQL text for the statement. Hence, if the SQL text originally +** began with EXPLAIN or EXPLAIN QUERY PLAN, but sqlite3_stmt_explain(S,0) +** is called to convert the statement into an ordinary statement, the EXPLAIN +** or EXPLAIN QUERY PLAN keywords will still appear in the sqlite3_sql(S) +** output, even though the statement now acts like a normal SQL statement. +** +** This routine returns SQLITE_OK if the explain mode is successfully +** changed, or an error code if the explain mode could not be changed. +** The explain mode cannot be changed while a statement is active. +** Hence, it is good practice to call [sqlite3_reset(S)] +** immediately prior to calling sqlite3_stmt_explain(S,E). +*/ +SQLITE_API int sqlite3_stmt_explain(sqlite3_stmt *pStmt, int eMode); + +/* ** CAPI3REF: Determine If A Prepared Statement Has Been Reset ** METHOD: sqlite3_stmt ** @@ -4772,7 +4936,7 @@ typedef struct sqlite3_context sqlite3_context; ** with it may be passed. ^It is called to dispose of the BLOB or string even ** if the call to the bind API fails, except the destructor is not called if ** the third parameter is a NULL pointer or the fourth parameter is negative. -** ^ (2) The special constant, [SQLITE_STATIC], may be passsed to indicate that +** ^ (2) The special constant, [SQLITE_STATIC], may be passed to indicate that ** the application remains responsible for disposing of the object. ^In this ** case, the object and the provided pointer to it must remain valid until ** either the prepared statement is finalized or the same SQL parameter is @@ -5451,20 +5615,33 @@ SQLITE_API int sqlite3_finalize(sqlite3_stmt *pStmt); ** ^The [sqlite3_reset(S)] interface resets the [prepared statement] S ** back to the beginning of its program. ** -** ^If the most recent call to [sqlite3_step(S)] for the -** [prepared statement] S returned [SQLITE_ROW] or [SQLITE_DONE], -** or if [sqlite3_step(S)] has never before been called on S, -** then [sqlite3_reset(S)] returns [SQLITE_OK]. +** ^The return code from [sqlite3_reset(S)] indicates whether or not +** the previous evaluation of prepared statement S completed successfully. +** ^If [sqlite3_step(S)] has never before been called on S or if +** [sqlite3_step(S)] has not been called since the previous call +** to [sqlite3_reset(S)], then [sqlite3_reset(S)] will return +** [SQLITE_OK]. ** ** ^If the most recent call to [sqlite3_step(S)] for the ** [prepared statement] S indicated an error, then ** [sqlite3_reset(S)] returns an appropriate [error code]. +** ^The [sqlite3_reset(S)] interface might also return an [error code] +** if there were no prior errors but the process of resetting +** the prepared statement caused a new error. ^For example, if an +** [INSERT] statement with a [RETURNING] clause is only stepped one time, +** that one call to [sqlite3_step(S)] might return SQLITE_ROW but +** the overall statement might still fail and the [sqlite3_reset(S)] call +** might return SQLITE_BUSY if locking constraints prevent the +** database change from committing. Therefore, it is important that +** applications check the return code from [sqlite3_reset(S)] even if +** no prior call to [sqlite3_step(S)] indicated a problem. ** ** ^The [sqlite3_reset(S)] interface does not change the values ** of any [sqlite3_bind_blob|bindings] on the [prepared statement] S. */ SQLITE_API int sqlite3_reset(sqlite3_stmt *pStmt); + /* ** CAPI3REF: Create Or Redefine SQL Functions ** KEYWORDS: {function creation routines} @@ -5670,10 +5847,21 @@ SQLITE_API int sqlite3_create_window_function( ** from top-level SQL, and cannot be used in VIEWs or TRIGGERs nor in ** schema structures such as [CHECK constraints], [DEFAULT clauses], ** [expression indexes], [partial indexes], or [generated columns]. -** The SQLITE_DIRECTONLY flags is a security feature which is recommended -** for all [application-defined SQL functions], and especially for functions -** that have side-effects or that could potentially leak sensitive -** information. +** <p> +** The SQLITE_DIRECTONLY flag is recommended for any +** [application-defined SQL function] +** that has side-effects or that could potentially leak sensitive information. +** This will prevent attacks in which an application is tricked +** into using a database file that has had its schema surreptitiously +** modified to invoke the application-defined function in ways that are +** harmful. +** <p> +** Some people say it is good practice to set SQLITE_DIRECTONLY on all +** [application-defined SQL functions], regardless of whether or not they +** are security sensitive, as doing so prevents those functions from being used +** inside of the database schema, and thus ensures that the database +** can be inspected and modified using generic tools (such as the [CLI]) +** that do not have access to the application-defined functions. ** </dd> ** ** [[SQLITE_INNOCUOUS]] <dt>SQLITE_INNOCUOUS</dt><dd> @@ -5700,13 +5888,27 @@ SQLITE_API int sqlite3_create_window_function( ** </dd> ** ** [[SQLITE_SUBTYPE]] <dt>SQLITE_SUBTYPE</dt><dd> -** The SQLITE_SUBTYPE flag indicates to SQLite that a function may call +** The SQLITE_SUBTYPE flag indicates to SQLite that a function might call ** [sqlite3_value_subtype()] to inspect the sub-types of its arguments. -** Specifying this flag makes no difference for scalar or aggregate user -** functions. However, if it is not specified for a user-defined window -** function, then any sub-types belonging to arguments passed to the window -** function may be discarded before the window function is called (i.e. -** sqlite3_value_subtype() will always return 0). +** This flag instructs SQLite to omit some corner-case optimizations that +** might disrupt the operation of the [sqlite3_value_subtype()] function, +** causing it to return zero rather than the correct subtype(). +** SQL functions that invokes [sqlite3_value_subtype()] should have this +** property. If the SQLITE_SUBTYPE property is omitted, then the return +** value from [sqlite3_value_subtype()] might sometimes be zero even though +** a non-zero subtype was specified by the function argument expression. +** +** [[SQLITE_RESULT_SUBTYPE]] <dt>SQLITE_RESULT_SUBTYPE</dt><dd> +** The SQLITE_RESULT_SUBTYPE flag indicates to SQLite that a function might call +** [sqlite3_result_subtype()] to cause a sub-type to be associated with its +** result. +** Every function that invokes [sqlite3_result_subtype()] should have this +** property. If it does not, then the call to [sqlite3_result_subtype()] +** might become a no-op if the function is used as term in an +** [expression index]. On the other hand, SQL functions that never invoke +** [sqlite3_result_subtype()] should avoid setting this property, as the +** purpose of this property is to disable certain optimizations that are +** incompatible with subtypes. ** </dd> ** </dl> */ @@ -5714,6 +5916,7 @@ SQLITE_API int sqlite3_create_window_function( #define SQLITE_DIRECTONLY 0x000080000 #define SQLITE_SUBTYPE 0x000100000 #define SQLITE_INNOCUOUS 0x000200000 +#define SQLITE_RESULT_SUBTYPE 0x001000000 /* ** CAPI3REF: Deprecated Functions @@ -5880,6 +6083,28 @@ SQLITE_API int sqlite3_value_nochange(sqlite3_value*); SQLITE_API int sqlite3_value_frombind(sqlite3_value*); /* +** CAPI3REF: Report the internal text encoding state of an sqlite3_value object +** METHOD: sqlite3_value +** +** ^(The sqlite3_value_encoding(X) interface returns one of [SQLITE_UTF8], +** [SQLITE_UTF16BE], or [SQLITE_UTF16LE] according to the current text encoding +** of the value X, assuming that X has type TEXT.)^ If sqlite3_value_type(X) +** returns something other than SQLITE_TEXT, then the return value from +** sqlite3_value_encoding(X) is meaningless. ^Calls to +** [sqlite3_value_text(X)], [sqlite3_value_text16(X)], [sqlite3_value_text16be(X)], +** [sqlite3_value_text16le(X)], [sqlite3_value_bytes(X)], or +** [sqlite3_value_bytes16(X)] might change the encoding of the value X and +** thus change the return from subsequent calls to sqlite3_value_encoding(X). +** +** This routine is intended for used by applications that test and validate +** the SQLite implementation. This routine is inquiring about the opaque +** internal state of an [sqlite3_value] object. Ordinary applications should +** not need to know what the internal state of an sqlite3_value object is and +** hence should not need to use this interface. +*/ +SQLITE_API int sqlite3_value_encoding(sqlite3_value*); + +/* ** CAPI3REF: Finding The Subtype Of SQL Values ** METHOD: sqlite3_value ** @@ -5888,6 +6113,12 @@ SQLITE_API int sqlite3_value_frombind(sqlite3_value*); ** information can be used to pass a limited amount of context from ** one SQL function to another. Use the [sqlite3_result_subtype()] ** routine to set the subtype for the return value of an SQL function. +** +** Every [application-defined SQL function] that invoke this interface +** should include the [SQLITE_SUBTYPE] property in the text +** encoding argument when the function is [sqlite3_create_function|registered]. +** If the [SQLITE_SUBTYPE] property is omitted, then sqlite3_value_subtype() +** might return zero instead of the upstream subtype in some corner cases. */ SQLITE_API unsigned int sqlite3_value_subtype(sqlite3_value*); @@ -5899,7 +6130,8 @@ SQLITE_API unsigned int sqlite3_value_subtype(sqlite3_value*); ** object D and returns a pointer to that copy. ^The [sqlite3_value] returned ** is a [protected sqlite3_value] object even if the input is not. ** ^The sqlite3_value_dup(V) interface returns NULL if V is NULL or if a -** memory allocation fails. +** memory allocation fails. ^If V is a [pointer value], then the result +** of sqlite3_value_dup(V) is a NULL value. ** ** ^The sqlite3_value_free(V) interface frees an [sqlite3_value] object ** previously obtained from [sqlite3_value_dup()]. ^If V is a NULL pointer @@ -5930,7 +6162,7 @@ SQLITE_API void sqlite3_value_free(sqlite3_value*); ** ** ^The sqlite3_aggregate_context(C,N) routine returns a NULL pointer ** when first called if N is less than or equal to zero or if a memory -** allocate error occurs. +** allocation error occurs. ** ** ^(The amount of space allocated by sqlite3_aggregate_context(C,N) is ** determined by the N parameter on first successful call. Changing the @@ -5985,48 +6217,56 @@ SQLITE_API sqlite3 *sqlite3_context_db_handle(sqlite3_context*); ** METHOD: sqlite3_context ** ** These functions may be used by (non-aggregate) SQL functions to -** associate metadata with argument values. If the same value is passed to -** multiple invocations of the same SQL function during query execution, under -** some circumstances the associated metadata may be preserved. An example -** of where this might be useful is in a regular-expression matching -** function. The compiled version of the regular expression can be stored as -** metadata associated with the pattern string. +** associate auxiliary data with argument values. If the same argument +** value is passed to multiple invocations of the same SQL function during +** query execution, under some circumstances the associated auxiliary data +** might be preserved. An example of where this might be useful is in a +** regular-expression matching function. The compiled version of the regular +** expression can be stored as auxiliary data associated with the pattern string. ** Then as long as the pattern string remains the same, ** the compiled regular expression can be reused on multiple ** invocations of the same function. ** -** ^The sqlite3_get_auxdata(C,N) interface returns a pointer to the metadata +** ^The sqlite3_get_auxdata(C,N) interface returns a pointer to the auxiliary data ** associated by the sqlite3_set_auxdata(C,N,P,X) function with the Nth argument ** value to the application-defined function. ^N is zero for the left-most -** function argument. ^If there is no metadata +** function argument. ^If there is no auxiliary data ** associated with the function argument, the sqlite3_get_auxdata(C,N) interface ** returns a NULL pointer. ** -** ^The sqlite3_set_auxdata(C,N,P,X) interface saves P as metadata for the N-th -** argument of the application-defined function. ^Subsequent +** ^The sqlite3_set_auxdata(C,N,P,X) interface saves P as auxiliary data for the +** N-th argument of the application-defined function. ^Subsequent ** calls to sqlite3_get_auxdata(C,N) return P from the most recent -** sqlite3_set_auxdata(C,N,P,X) call if the metadata is still valid or -** NULL if the metadata has been discarded. +** sqlite3_set_auxdata(C,N,P,X) call if the auxiliary data is still valid or +** NULL if the auxiliary data has been discarded. ** ^After each call to sqlite3_set_auxdata(C,N,P,X) where X is not NULL, ** SQLite will invoke the destructor function X with parameter P exactly -** once, when the metadata is discarded. -** SQLite is free to discard the metadata at any time, including: <ul> +** once, when the auxiliary data is discarded. +** SQLite is free to discard the auxiliary data at any time, including: <ul> ** <li> ^(when the corresponding function parameter changes)^, or ** <li> ^(when [sqlite3_reset()] or [sqlite3_finalize()] is called for the ** SQL statement)^, or ** <li> ^(when sqlite3_set_auxdata() is invoked again on the same ** parameter)^, or ** <li> ^(during the original sqlite3_set_auxdata() call when a memory -** allocation error occurs.)^ </ul> +** allocation error occurs.)^ +** <li> ^(during the original sqlite3_set_auxdata() call if the function +** is evaluated during query planning instead of during query execution, +** as sometimes happens with [SQLITE_ENABLE_STAT4].)^ </ul> ** -** Note the last bullet in particular. The destructor X in +** Note the last two bullets in particular. The destructor X in ** sqlite3_set_auxdata(C,N,P,X) might be called immediately, before the ** sqlite3_set_auxdata() interface even returns. Hence sqlite3_set_auxdata() ** should be called near the end of the function implementation and the ** function implementation should not make any use of P after -** sqlite3_set_auxdata() has been called. -** -** ^(In practice, metadata is preserved between function calls for +** sqlite3_set_auxdata() has been called. Furthermore, a call to +** sqlite3_get_auxdata() that occurs immediately after a corresponding call +** to sqlite3_set_auxdata() might still return NULL if an out-of-memory +** condition occurred during the sqlite3_set_auxdata() call or if the +** function is being evaluated during query planning rather than during +** query execution. +** +** ^(In practice, auxiliary data is preserved between function calls for ** function parameters that are compile-time constants, including literal ** values and [parameters] and expressions composed from the same.)^ ** @@ -6036,10 +6276,67 @@ SQLITE_API sqlite3 *sqlite3_context_db_handle(sqlite3_context*); ** ** These routines must be called from the same thread in which ** the SQL function is running. +** +** See also: [sqlite3_get_clientdata()] and [sqlite3_set_clientdata()]. */ SQLITE_API void *sqlite3_get_auxdata(sqlite3_context*, int N); SQLITE_API void sqlite3_set_auxdata(sqlite3_context*, int N, void*, void (*)(void*)); +/* +** CAPI3REF: Database Connection Client Data +** METHOD: sqlite3 +** +** These functions are used to associate one or more named pointers +** with a [database connection]. +** A call to sqlite3_set_clientdata(D,N,P,X) causes the pointer P +** to be attached to [database connection] D using name N. Subsequent +** calls to sqlite3_get_clientdata(D,N) will return a copy of pointer P +** or a NULL pointer if there were no prior calls to +** sqlite3_set_clientdata() with the same values of D and N. +** Names are compared using strcmp() and are thus case sensitive. +** +** If P and X are both non-NULL, then the destructor X is invoked with +** argument P on the first of the following occurrences: +** <ul> +** <li> An out-of-memory error occurs during the call to +** sqlite3_set_clientdata() which attempts to register pointer P. +** <li> A subsequent call to sqlite3_set_clientdata(D,N,P,X) is made +** with the same D and N parameters. +** <li> The database connection closes. SQLite does not make any guarantees +** about the order in which destructors are called, only that all +** destructors will be called exactly once at some point during the +** database connection closing process. +** </ul> +** +** SQLite does not do anything with client data other than invoke +** destructors on the client data at the appropriate time. The intended +** use for client data is to provide a mechanism for wrapper libraries +** to store additional information about an SQLite database connection. +** +** There is no limit (other than available memory) on the number of different +** client data pointers (with different names) that can be attached to a +** single database connection. However, the implementation is optimized +** for the case of having only one or two different client data names. +** Applications and wrapper libraries are discouraged from using more than +** one client data name each. +** +** There is no way to enumerate the client data pointers +** associated with a database connection. The N parameter can be thought +** of as a secret key such that only code that knows the secret key is able +** to access the associated data. +** +** Security Warning: These interfaces should not be exposed in scripting +** languages or in other circumstances where it might be possible for an +** an attacker to invoke them. Any agent that can invoke these interfaces +** can probably also take control of the process. +** +** Database connection client data is only available for SQLite +** version 3.44.0 ([dateof:3.44.0]) and later. +** +** See also: [sqlite3_set_auxdata()] and [sqlite3_get_auxdata()]. +*/ +SQLITE_API void *sqlite3_get_clientdata(sqlite3*,const char*); +SQLITE_API int sqlite3_set_clientdata(sqlite3*, const char*, void*, void(*)(void*)); /* ** CAPI3REF: Constants Defining Special Destructor Behavior @@ -6135,9 +6432,10 @@ typedef void (*sqlite3_destructor_type)(void*); ** of [SQLITE_UTF8], [SQLITE_UTF16], [SQLITE_UTF16BE], or [SQLITE_UTF16LE]. ** ^SQLite takes the text result from the application from ** the 2nd parameter of the sqlite3_result_text* interfaces. -** ^If the 3rd parameter to the sqlite3_result_text* interfaces -** is negative, then SQLite takes result text from the 2nd parameter -** through the first zero character. +** ^If the 3rd parameter to any of the sqlite3_result_text* interfaces +** other than sqlite3_result_text64() is negative, then SQLite computes +** the string length itself by searching the 2nd parameter for the first +** zero character. ** ^If the 3rd parameter to the sqlite3_result_text* interfaces ** is non-negative, then as many bytes (not characters) of the text ** pointed to by the 2nd parameter are taken as the application-defined @@ -6240,6 +6538,20 @@ SQLITE_API int sqlite3_result_zeroblob64(sqlite3_context*, sqlite3_uint64 n); ** higher order bits are discarded. ** The number of subtype bytes preserved by SQLite might increase ** in future releases of SQLite. +** +** Every [application-defined SQL function] that invokes this interface +** should include the [SQLITE_RESULT_SUBTYPE] property in its +** text encoding argument when the SQL function is +** [sqlite3_create_function|registered]. If the [SQLITE_RESULT_SUBTYPE] +** property is omitted from the function that invokes sqlite3_result_subtype(), +** then in some cases the sqlite3_result_subtype() might fail to set +** the result subtype. +** +** If SQLite is compiled with -DSQLITE_STRICT_SUBTYPE=1, then any +** SQL function that invokes the sqlite3_result_subtype() interface +** and that does not have the SQLITE_RESULT_SUBTYPE property will raise +** an error. Future versions of SQLite might enable -DSQLITE_STRICT_SUBTYPE=1 +** by default. */ SQLITE_API void sqlite3_result_subtype(sqlite3_context*,unsigned int); @@ -6411,6 +6723,13 @@ SQLITE_API void sqlite3_activate_cerod( ** of the default VFS is not implemented correctly, or not implemented at ** all, then the behavior of sqlite3_sleep() may deviate from the description ** in the previous paragraphs. +** +** If a negative argument is passed to sqlite3_sleep() the results vary by +** VFS and operating system. Some system treat a negative argument as an +** instruction to sleep forever. Others understand it to mean do not sleep +** at all. ^In SQLite version 3.42.0 and later, a negative +** argument passed into sqlite3_sleep() is changed to zero before it is relayed +** down into the xSleep method of the VFS. */ SQLITE_API int sqlite3_sleep(int); @@ -6582,6 +6901,28 @@ SQLITE_API int sqlite3_get_autocommit(sqlite3*); SQLITE_API sqlite3 *sqlite3_db_handle(sqlite3_stmt*); /* +** CAPI3REF: Return The Schema Name For A Database Connection +** METHOD: sqlite3 +** +** ^The sqlite3_db_name(D,N) interface returns a pointer to the schema name +** for the N-th database on database connection D, or a NULL pointer of N is +** out of range. An N value of 0 means the main database file. An N of 1 is +** the "temp" schema. Larger values of N correspond to various ATTACH-ed +** databases. +** +** Space to hold the string that is returned by sqlite3_db_name() is managed +** by SQLite itself. The string might be deallocated by any operation that +** changes the schema, including [ATTACH] or [DETACH] or calls to +** [sqlite3_serialize()] or [sqlite3_deserialize()], even operations that +** occur on a different thread. Applications that need to +** remember the string long-term should make their own copy. Applications that +** are accessing the same database connection simultaneously on multiple +** threads should mutex-protect calls to this API and should make their own +** private copy of the result prior to releasing the mutex. +*/ +SQLITE_API const char *sqlite3_db_name(sqlite3 *db, int N); + +/* ** CAPI3REF: Return The Filename For A Database Connection ** METHOD: sqlite3 ** @@ -6611,7 +6952,7 @@ SQLITE_API sqlite3 *sqlite3_db_handle(sqlite3_stmt*); ** <li> [sqlite3_filename_wal()] ** </ul> */ -SQLITE_API const char *sqlite3_db_filename(sqlite3 *db, const char *zDbName); +SQLITE_API sqlite3_filename sqlite3_db_filename(sqlite3 *db, const char *zDbName); /* ** CAPI3REF: Determine if a database is read-only @@ -6642,7 +6983,7 @@ SQLITE_API int sqlite3_db_readonly(sqlite3 *db, const char *zDbName); SQLITE_API int sqlite3_txn_state(sqlite3*,const char *zSchema); /* -** CAPI3REF: Allowed return values from [sqlite3_txn_state()] +** CAPI3REF: Allowed return values from sqlite3_txn_state() ** KEYWORDS: {transaction state} ** ** These constants define the current transaction state of a database file. @@ -6748,7 +7089,7 @@ SQLITE_API void *sqlite3_rollback_hook(sqlite3*, void(*)(void *), void*); ** function C that is invoked prior to each autovacuum of the database ** file. ^The callback is passed a copy of the generic data pointer (P), ** the schema-name of the attached database that is being autovacuumed, -** the the size of the database file in pages, the number of free pages, +** the size of the database file in pages, the number of free pages, ** and the number of bytes per page, respectively. The callback should ** return the number of free pages that should be removed by the ** autovacuum. ^If the callback returns zero, then no autovacuum happens. @@ -6774,7 +7115,7 @@ SQLITE_API void *sqlite3_rollback_hook(sqlite3*, void(*)(void *), void*); ** ^Each call to the sqlite3_autovacuum_pages() interface overrides all ** previous invocations for that database connection. ^If the callback ** argument (C) to sqlite3_autovacuum_pages(D,C,P,X) is a NULL pointer, -** then the autovacuum steps callback is cancelled. The return value +** then the autovacuum steps callback is canceled. The return value ** from sqlite3_autovacuum_pages() is normally SQLITE_OK, but might ** be some other error code if something goes wrong. The current ** implementation will only return SQLITE_OK or SQLITE_MISUSE, but other @@ -6869,6 +7210,11 @@ SQLITE_API void *sqlite3_update_hook( ** to the same database. Sharing is enabled if the argument is true ** and disabled if the argument is false.)^ ** +** This interface is omitted if SQLite is compiled with +** [-DSQLITE_OMIT_SHARED_CACHE]. The [-DSQLITE_OMIT_SHARED_CACHE] +** compile-time option is recommended because the +** [use of shared cache mode is discouraged]. +** ** ^Cache sharing is enabled and disabled for an entire process. ** This is a change as of SQLite [version 3.5.0] ([dateof:3.5.0]). ** In prior versions of SQLite, @@ -6967,7 +7313,7 @@ SQLITE_API int sqlite3_db_release_memory(sqlite3*); ** ^The soft heap limit may not be greater than the hard heap limit. ** ^If the hard heap limit is enabled and if sqlite3_soft_heap_limit(N) ** is invoked with a value of N that is greater than the hard heap limit, -** the the soft heap limit is set to the value of the hard heap limit. +** the soft heap limit is set to the value of the hard heap limit. ** ^The soft heap limit is automatically enabled whenever the hard heap ** limit is enabled. ^When sqlite3_hard_heap_limit64(N) is invoked and ** the soft heap limit is outside the range of 1..N, then the soft heap @@ -7229,15 +7575,6 @@ SQLITE_API int sqlite3_cancel_auto_extension(void(*xEntryPoint)(void)); SQLITE_API void sqlite3_reset_auto_extension(void); /* -** The interface to the virtual-table mechanism is currently considered -** to be experimental. The interface might change in incompatible ways. -** If this is a problem for you, do not use the interface at this time. -** -** When the virtual-table mechanism stabilizes, we will declare the -** interface fixed, support it indefinitely, and remove this comment. -*/ - -/* ** Structures used by the virtual table interface */ typedef struct sqlite3_vtab sqlite3_vtab; @@ -7297,6 +7634,10 @@ struct sqlite3_module { /* The methods above are in versions 1 and 2 of the sqlite_module object. ** Those below are for version 3 and greater. */ int (*xShadowName)(const char*); + /* The methods above are in versions 1 through 3 of the sqlite_module object. + ** Those below are for version 4 and greater. */ + int (*xIntegrity)(sqlite3_vtab *pVTab, const char *zSchema, + const char *zTabName, int mFlags, char **pzErr); }; /* @@ -7355,10 +7696,10 @@ struct sqlite3_module { ** when the omit flag is true there is no guarantee that the constraint will ** not be checked again using byte code.)^ ** -** ^The idxNum and idxPtr values are recorded and passed into the +** ^The idxNum and idxStr values are recorded and passed into the ** [xFilter] method. -** ^[sqlite3_free()] is used to free idxPtr if and only if -** needToFreeIdxPtr is true. +** ^[sqlite3_free()] is used to free idxStr if and only if +** needToFreeIdxStr is true. ** ** ^The orderByConsumed means that output from [xFilter]/[xNext] will occur in ** the correct order to satisfy the ORDER BY clause so that no separate @@ -7478,7 +7819,7 @@ struct sqlite3_index_info { ** the [sqlite3_vtab_collation()] interface. For most real-world virtual ** tables, the collating sequence of constraints does not matter (for example ** because the constraints are numeric) and so the sqlite3_vtab_collation() -** interface is no commonly needed. +** interface is not commonly needed. */ #define SQLITE_INDEX_CONSTRAINT_EQ 2 #define SQLITE_INDEX_CONSTRAINT_GT 4 @@ -7638,16 +7979,6 @@ SQLITE_API int sqlite3_declare_vtab(sqlite3*, const char *zSQL); SQLITE_API int sqlite3_overload_function(sqlite3*, const char *zFuncName, int nArg); /* -** The interface to the virtual-table mechanism defined above (back up -** to a comment remarkably similar to this one) is currently considered -** to be experimental. The interface might change in incompatible ways. -** If this is a problem for you, do not use the interface at this time. -** -** When the virtual-table mechanism stabilizes, we will declare the -** interface fixed, support it indefinitely, and remove this comment. -*/ - -/* ** CAPI3REF: A Handle To An Open BLOB ** KEYWORDS: {BLOB handle} {BLOB handles} ** @@ -7794,7 +8125,7 @@ SQLITE_API int sqlite3_blob_reopen(sqlite3_blob *, sqlite3_int64); ** code is returned and the transaction rolled back. ** ** Calling this function with an argument that is not a NULL pointer or an -** open blob handle results in undefined behaviour. ^Calling this routine +** open blob handle results in undefined behavior. ^Calling this routine ** with a null pointer (such as would be returned by a failed call to ** [sqlite3_blob_open()]) is a harmless no-op. ^Otherwise, if this function ** is passed a valid open blob handle, the values returned by the @@ -8021,18 +8352,20 @@ SQLITE_API int sqlite3_vfs_unregister(sqlite3_vfs*); ** ** ^(Some systems (for example, Windows 95) do not support the operation ** implemented by sqlite3_mutex_try(). On those systems, sqlite3_mutex_try() -** will always return SQLITE_BUSY. The SQLite core only ever uses -** sqlite3_mutex_try() as an optimization so this is acceptable -** behavior.)^ +** will always return SQLITE_BUSY. In most cases the SQLite core only uses +** sqlite3_mutex_try() as an optimization, so this is acceptable +** behavior. The exceptions are unix builds that set the +** SQLITE_ENABLE_SETLK_TIMEOUT build option. In that case a working +** sqlite3_mutex_try() is required.)^ ** ** ^The sqlite3_mutex_leave() routine exits a mutex that was ** previously entered by the same thread. The behavior ** is undefined if the mutex is not currently entered by the ** calling thread or is not currently allocated. ** -** ^If the argument to sqlite3_mutex_enter(), sqlite3_mutex_try(), or -** sqlite3_mutex_leave() is a NULL pointer, then all three routines -** behave as no-ops. +** ^If the argument to sqlite3_mutex_enter(), sqlite3_mutex_try(), +** sqlite3_mutex_leave(), or sqlite3_mutex_free() is a NULL pointer, +** then any of the four routines behaves as a no-op. ** ** See also: [sqlite3_mutex_held()] and [sqlite3_mutex_notheld()]. */ @@ -8274,6 +8607,7 @@ SQLITE_API int sqlite3_test_control(int op, ...); #define SQLITE_TESTCTRL_PRNG_SAVE 5 #define SQLITE_TESTCTRL_PRNG_RESTORE 6 #define SQLITE_TESTCTRL_PRNG_RESET 7 /* NOT USED */ +#define SQLITE_TESTCTRL_FK_NO_ACTION 7 #define SQLITE_TESTCTRL_BITVEC_TEST 8 #define SQLITE_TESTCTRL_FAULT_INSTALL 9 #define SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS 10 @@ -8281,6 +8615,7 @@ SQLITE_API int sqlite3_test_control(int op, ...); #define SQLITE_TESTCTRL_ASSERT 12 #define SQLITE_TESTCTRL_ALWAYS 13 #define SQLITE_TESTCTRL_RESERVE 14 /* NOT USED */ +#define SQLITE_TESTCTRL_JSON_SELFCHECK 14 #define SQLITE_TESTCTRL_OPTIMIZATIONS 15 #define SQLITE_TESTCTRL_ISKEYWORD 16 /* NOT USED */ #define SQLITE_TESTCTRL_SCRATCHMALLOC 17 /* NOT USED */ @@ -8302,7 +8637,8 @@ SQLITE_API int sqlite3_test_control(int op, ...); #define SQLITE_TESTCTRL_TRACEFLAGS 31 #define SQLITE_TESTCTRL_TUNE 32 #define SQLITE_TESTCTRL_LOGEST 33 -#define SQLITE_TESTCTRL_LAST 33 /* Largest TESTCTRL */ +#define SQLITE_TESTCTRL_USELONGDOUBLE 34 +#define SQLITE_TESTCTRL_LAST 34 /* Largest TESTCTRL */ /* ** CAPI3REF: SQL Keyword Checking @@ -9262,7 +9598,7 @@ typedef struct sqlite3_backup sqlite3_backup; ** if the application incorrectly accesses the destination [database connection] ** and so no error code is reported, but the operations may malfunction ** nevertheless. Use of the destination database connection while a -** backup is in progress might also also cause a mutex deadlock. +** backup is in progress might also cause a mutex deadlock. ** ** If running in [shared cache mode], the application must ** guarantee that the shared cache used by the destination database @@ -9690,7 +10026,7 @@ SQLITE_API int sqlite3_wal_checkpoint_v2( */ #define SQLITE_CHECKPOINT_PASSIVE 0 /* Do as much as possible w/o blocking */ #define SQLITE_CHECKPOINT_FULL 1 /* Wait for writers, then checkpoint */ -#define SQLITE_CHECKPOINT_RESTART 2 /* Like FULL but wait for for readers */ +#define SQLITE_CHECKPOINT_RESTART 2 /* Like FULL but wait for readers */ #define SQLITE_CHECKPOINT_TRUNCATE 3 /* Like RESTART but also truncate WAL */ /* @@ -9758,7 +10094,7 @@ SQLITE_API int sqlite3_vtab_config(sqlite3*, int op, ...); ** [[SQLITE_VTAB_DIRECTONLY]]<dt>SQLITE_VTAB_DIRECTONLY</dt> ** <dd>Calls of the form ** [sqlite3_vtab_config](db,SQLITE_VTAB_DIRECTONLY) from within the -** the [xConnect] or [xCreate] methods of a [virtual table] implmentation +** the [xConnect] or [xCreate] methods of a [virtual table] implementation ** prohibits that virtual table from being used from within triggers and ** views. ** </dd> @@ -9766,18 +10102,28 @@ SQLITE_API int sqlite3_vtab_config(sqlite3*, int op, ...); ** [[SQLITE_VTAB_INNOCUOUS]]<dt>SQLITE_VTAB_INNOCUOUS</dt> ** <dd>Calls of the form ** [sqlite3_vtab_config](db,SQLITE_VTAB_INNOCUOUS) from within the -** the [xConnect] or [xCreate] methods of a [virtual table] implmentation +** the [xConnect] or [xCreate] methods of a [virtual table] implementation ** identify that virtual table as being safe to use from within triggers ** and views. Conceptually, the SQLITE_VTAB_INNOCUOUS tag means that the ** virtual table can do no serious harm even if it is controlled by a ** malicious hacker. Developers should avoid setting the SQLITE_VTAB_INNOCUOUS ** flag unless absolutely necessary. ** </dd> +** +** [[SQLITE_VTAB_USES_ALL_SCHEMAS]]<dt>SQLITE_VTAB_USES_ALL_SCHEMAS</dt> +** <dd>Calls of the form +** [sqlite3_vtab_config](db,SQLITE_VTAB_USES_ALL_SCHEMA) from within the +** the [xConnect] or [xCreate] methods of a [virtual table] implementation +** instruct the query planner to begin at least a read transaction on +** all schemas ("main", "temp", and any ATTACH-ed databases) whenever the +** virtual table is used. +** </dd> ** </dl> */ #define SQLITE_VTAB_CONSTRAINT_SUPPORT 1 #define SQLITE_VTAB_INNOCUOUS 2 #define SQLITE_VTAB_DIRECTONLY 3 +#define SQLITE_VTAB_USES_ALL_SCHEMAS 4 /* ** CAPI3REF: Determine The Virtual Table Conflict Policy @@ -9850,7 +10196,7 @@ SQLITE_API int sqlite3_vtab_nochange(sqlite3_context*); ** <li><p> Otherwise, "BINARY" is returned. ** </ol> */ -SQLITE_API SQLITE_EXPERIMENTAL const char *sqlite3_vtab_collation(sqlite3_index_info*,int); +SQLITE_API const char *sqlite3_vtab_collation(sqlite3_index_info*,int); /* ** CAPI3REF: Determine if a virtual table query is DISTINCT @@ -9860,8 +10206,8 @@ SQLITE_API SQLITE_EXPERIMENTAL const char *sqlite3_vtab_collation(sqlite3_index_ ** of a [virtual table] implementation. The result of calling this ** interface from outside of xBestIndex() is undefined and probably harmful. ** -** ^The sqlite3_vtab_distinct() interface returns an integer that is -** either 0, 1, or 2. The integer returned by sqlite3_vtab_distinct() +** ^The sqlite3_vtab_distinct() interface returns an integer between 0 and +** 3. The integer returned by sqlite3_vtab_distinct() ** gives the virtual table additional information about how the query ** planner wants the output to be ordered. As long as the virtual table ** can meet the ordering requirements of the query planner, it may set @@ -9893,6 +10239,13 @@ SQLITE_API SQLITE_EXPERIMENTAL const char *sqlite3_vtab_collation(sqlite3_index_ ** that have the same value for all columns identified by "aOrderBy". ** ^However omitting the extra rows is optional. ** This mode is used for a DISTINCT query. +** <li value="3"><p> +** ^(If the sqlite3_vtab_distinct() interface returns 3, that means +** that the query planner needs only distinct rows but it does need the +** rows to be sorted.)^ ^The virtual table implementation is free to omit +** rows that are identical in all aOrderBy columns, if it wants to, but +** it is not required to omit any rows. This mode is used for queries +** that have both DISTINCT and ORDER BY clauses. ** </ol> ** ** ^For the purposes of comparing virtual table output values to see if the @@ -9931,7 +10284,7 @@ SQLITE_API int sqlite3_vtab_distinct(sqlite3_index_info*); ** communicated to the xBestIndex method as a ** [SQLITE_INDEX_CONSTRAINT_EQ] constraint.)^ If xBestIndex wants to use ** this constraint, it must set the corresponding -** aConstraintUsage[].argvIndex to a postive integer. ^(Then, under +** aConstraintUsage[].argvIndex to a positive integer. ^(Then, under ** the usual mode of handling IN operators, SQLite generates [bytecode] ** that invokes the [xFilter|xFilter() method] once for each value ** on the right-hand side of the IN operator.)^ Thus the virtual table @@ -10000,21 +10353,20 @@ SQLITE_API int sqlite3_vtab_in(sqlite3_index_info*, int iCons, int bHandle); ** is undefined and probably harmful. ** ** The X parameter in a call to sqlite3_vtab_in_first(X,P) or -** sqlite3_vtab_in_next(X,P) must be one of the parameters to the +** sqlite3_vtab_in_next(X,P) should be one of the parameters to the ** xFilter method which invokes these routines, and specifically ** a parameter that was previously selected for all-at-once IN constraint ** processing use the [sqlite3_vtab_in()] interface in the ** [xBestIndex|xBestIndex method]. ^(If the X parameter is not ** an xFilter argument that was selected for all-at-once IN constraint -** processing, then these routines return [SQLITE_MISUSE])^ or perhaps -** exhibit some other undefined or harmful behavior. +** processing, then these routines return [SQLITE_ERROR].)^ ** ** ^(Use these routines to access all values on the right-hand side ** of the IN constraint using code like the following: ** ** <blockquote><pre> ** for(rc=sqlite3_vtab_in_first(pList, &pVal); -** rc==SQLITE_OK && pVal +** rc==SQLITE_OK && pVal; ** rc=sqlite3_vtab_in_next(pList, &pVal) ** ){ ** // do something with pVal @@ -10112,6 +10464,10 @@ SQLITE_API int sqlite3_vtab_rhs_value(sqlite3_index_info*, int, sqlite3_value ** ** managed by the prepared statement S and will be automatically freed when ** S is finalized. ** +** Not all values are available for all query elements. When a value is +** not available, the output variable is set to -1 if the value is numeric, +** or to NULL if it is a string (SQLITE_SCANSTAT_NAME). +** ** <dl> ** [[SQLITE_SCANSTAT_NLOOP]] <dt>SQLITE_SCANSTAT_NLOOP</dt> ** <dd>^The [sqlite3_int64] variable pointed to by the V parameter will be @@ -10139,12 +10495,24 @@ SQLITE_API int sqlite3_vtab_rhs_value(sqlite3_index_info*, int, sqlite3_value ** ** to a zero-terminated UTF-8 string containing the [EXPLAIN QUERY PLAN] ** description for the X-th loop. ** -** [[SQLITE_SCANSTAT_SELECTID]] <dt>SQLITE_SCANSTAT_SELECT</dt> +** [[SQLITE_SCANSTAT_SELECTID]] <dt>SQLITE_SCANSTAT_SELECTID</dt> ** <dd>^The "int" variable pointed to by the V parameter will be set to the -** "select-id" for the X-th loop. The select-id identifies which query or -** subquery the loop is part of. The main query has a select-id of zero. -** The select-id is the same value as is output in the first column -** of an [EXPLAIN QUERY PLAN] query. +** id for the X-th query plan element. The id value is unique within the +** statement. The select-id is the same value as is output in the first +** column of an [EXPLAIN QUERY PLAN] query. +** +** [[SQLITE_SCANSTAT_PARENTID]] <dt>SQLITE_SCANSTAT_PARENTID</dt> +** <dd>The "int" variable pointed to by the V parameter will be set to the +** the id of the parent of the current query element, if applicable, or +** to zero if the query element has no parent. This is the same value as +** returned in the second column of an [EXPLAIN QUERY PLAN] query. +** +** [[SQLITE_SCANSTAT_NCYCLE]] <dt>SQLITE_SCANSTAT_NCYCLE</dt> +** <dd>The sqlite3_int64 output value is set to the number of cycles, +** according to the processor time-stamp counter, that elapsed while the +** query element was being processed. This value is not available for +** all query elements - if it is unavailable the output variable is +** set to -1. ** </dl> */ #define SQLITE_SCANSTAT_NLOOP 0 @@ -10153,12 +10521,14 @@ SQLITE_API int sqlite3_vtab_rhs_value(sqlite3_index_info*, int, sqlite3_value ** #define SQLITE_SCANSTAT_NAME 3 #define SQLITE_SCANSTAT_EXPLAIN 4 #define SQLITE_SCANSTAT_SELECTID 5 +#define SQLITE_SCANSTAT_PARENTID 6 +#define SQLITE_SCANSTAT_NCYCLE 7 /* ** CAPI3REF: Prepared Statement Scan Status ** METHOD: sqlite3_stmt ** -** This interface returns information about the predicted and measured +** These interfaces return information about the predicted and measured ** performance for pStmt. Advanced applications can use this ** interface to compare the predicted and the measured performance and ** issue warnings and/or rerun [ANALYZE] if discrepancies are found. @@ -10169,19 +10539,25 @@ SQLITE_API int sqlite3_vtab_rhs_value(sqlite3_index_info*, int, sqlite3_value ** ** ** The "iScanStatusOp" parameter determines which status information to return. ** The "iScanStatusOp" must be one of the [scanstatus options] or the behavior -** of this interface is undefined. -** ^The requested measurement is written into a variable pointed to by -** the "pOut" parameter. -** Parameter "idx" identifies the specific loop to retrieve statistics for. -** Loops are numbered starting from zero. ^If idx is out of range - less than -** zero or greater than or equal to the total number of loops used to implement -** the statement - a non-zero value is returned and the variable that pOut -** points to is unchanged. -** -** ^Statistics might not be available for all loops in all statements. ^In cases -** where there exist loops with no available statistics, this function behaves -** as if the loop did not exist - it returns non-zero and leave the variable -** that pOut points to unchanged. +** of this interface is undefined. ^The requested measurement is written into +** a variable pointed to by the "pOut" parameter. +** +** The "flags" parameter must be passed a mask of flags. At present only +** one flag is defined - SQLITE_SCANSTAT_COMPLEX. If SQLITE_SCANSTAT_COMPLEX +** is specified, then status information is available for all elements +** of a query plan that are reported by "EXPLAIN QUERY PLAN" output. If +** SQLITE_SCANSTAT_COMPLEX is not specified, then only query plan elements +** that correspond to query loops (the "SCAN..." and "SEARCH..." elements of +** the EXPLAIN QUERY PLAN output) are available. Invoking API +** sqlite3_stmt_scanstatus() is equivalent to calling +** sqlite3_stmt_scanstatus_v2() with a zeroed flags parameter. +** +** Parameter "idx" identifies the specific query element to retrieve statistics +** for. Query elements are numbered starting from zero. A value of -1 may be +** to query for statistics regarding the entire query. ^If idx is out of range +** - less than -1 or greater than or equal to the total number of query +** elements used to implement the statement - a non-zero value is returned and +** the variable that pOut points to is unchanged. ** ** See also: [sqlite3_stmt_scanstatus_reset()] */ @@ -10191,6 +10567,19 @@ SQLITE_API int sqlite3_stmt_scanstatus( int iScanStatusOp, /* Information desired. SQLITE_SCANSTAT_* */ void *pOut /* Result written here */ ); +SQLITE_API int sqlite3_stmt_scanstatus_v2( + sqlite3_stmt *pStmt, /* Prepared statement for which info desired */ + int idx, /* Index of loop to report on */ + int iScanStatusOp, /* Information desired. SQLITE_SCANSTAT_* */ + int flags, /* Mask of flags defined below */ + void *pOut /* Result written here */ +); + +/* +** CAPI3REF: Prepared Statement Scan Status +** KEYWORDS: {scan status flags} +*/ +#define SQLITE_SCANSTAT_COMPLEX 0x0001 /* ** CAPI3REF: Zero Scan-Status Counters @@ -10281,6 +10670,10 @@ SQLITE_API int sqlite3_db_cacheflush(sqlite3*); ** function is not defined for operations on WITHOUT ROWID tables, or for ** DELETE operations on rowid tables. ** +** ^The sqlite3_preupdate_hook(D,C,P) function returns the P argument from +** the previous call on the same [database connection] D, or NULL for +** the first call on D. +** ** The [sqlite3_preupdate_old()], [sqlite3_preupdate_new()], ** [sqlite3_preupdate_count()], and [sqlite3_preupdate_depth()] interfaces ** provide additional information about a preupdate event. These routines @@ -10320,7 +10713,7 @@ SQLITE_API int sqlite3_db_cacheflush(sqlite3*); ** When the [sqlite3_blob_write()] API is used to update a blob column, ** the pre-update hook is invoked with SQLITE_DELETE. This is because the ** in this case the new values are not available. In this case, when a -** callback made with op==SQLITE_DELETE is actuall a write using the +** callback made with op==SQLITE_DELETE is actually a write using the ** sqlite3_blob_write() API, the [sqlite3_preupdate_blobwrite()] returns ** the index of the column being written. In other cases, where the ** pre-update hook is being invoked for some other reason, including a @@ -10581,6 +10974,13 @@ SQLITE_API SQLITE_EXPERIMENTAL int sqlite3_snapshot_recover(sqlite3 *db, const c ** SQLITE_SERIALIZE_NOCOPY bit is set but no contiguous copy ** of the database exists. ** +** After the call, if the SQLITE_SERIALIZE_NOCOPY bit had been set, +** the returned buffer content will remain accessible and unchanged +** until either the next write operation on the connection or when +** the connection is closed, and applications must not modify the +** buffer. If the bit had been clear, the returned buffer will not +** be accessed by SQLite after the call. +** ** A call to sqlite3_serialize(D,S,P,F) might return NULL even if the ** SQLITE_SERIALIZE_NOCOPY bit is omitted from argument F if a memory ** allocation error occurs. @@ -10629,6 +11029,9 @@ SQLITE_API unsigned char *sqlite3_serialize( ** SQLite will try to increase the buffer size using sqlite3_realloc64() ** if writes on the database cause it to grow larger than M bytes. ** +** Applications must not modify the buffer P or invalidate it before +** the database connection D is closed. +** ** The sqlite3_deserialize() interface will fail with SQLITE_BUSY if the ** database is currently in a read transaction or is involved in a backup ** operation. @@ -10637,6 +11040,13 @@ SQLITE_API unsigned char *sqlite3_serialize( ** S argument to sqlite3_deserialize(D,S,P,N,M,F) is "temp" then the ** function returns SQLITE_ERROR. ** +** The deserialized database should not be in [WAL mode]. If the database +** is in WAL mode, then any attempt to use the database file will result +** in an [SQLITE_CANTOPEN] error. The application can set the +** [file format version numbers] (bytes 18 and 19) of the input database P +** to 0x01 prior to invoking sqlite3_deserialize(D,S,P,N,M,F) to force the +** database file into rollback mode and work around this limitation. +** ** If sqlite3_deserialize(D,S,P,N,M,F) fails for any reason and if the ** SQLITE_DESERIALIZE_FREEONCLOSE bit is set in argument F, then ** [sqlite3_free()] is invoked on argument P prior to returning. @@ -10686,6 +11096,19 @@ SQLITE_API int sqlite3_deserialize( # undef double #endif +#if defined(__wasi__) +# undef SQLITE_WASI +# define SQLITE_WASI 1 +# undef SQLITE_OMIT_WAL +# define SQLITE_OMIT_WAL 1/* because it requires shared memory APIs */ +# ifndef SQLITE_OMIT_LOAD_EXTENSION +# define SQLITE_OMIT_LOAD_EXTENSION +# endif +# ifndef SQLITE_THREADSAFE +# define SQLITE_THREADSAFE 0 +# endif +#endif + #if 0 } /* End of the 'extern "C"' block */ #endif @@ -10892,16 +11315,20 @@ SQLITE_API int sqlite3session_create( SQLITE_API void sqlite3session_delete(sqlite3_session *pSession); /* -** CAPIREF: Conigure a Session Object +** CAPI3REF: Configure a Session Object ** METHOD: sqlite3_session ** ** This method is used to configure a session object after it has been -** created. At present the only valid value for the second parameter is -** [SQLITE_SESSION_OBJCONFIG_SIZE]. +** created. At present the only valid values for the second parameter are +** [SQLITE_SESSION_OBJCONFIG_SIZE] and [SQLITE_SESSION_OBJCONFIG_ROWID]. ** -** Arguments for sqlite3session_object_config() +*/ +SQLITE_API int sqlite3session_object_config(sqlite3_session*, int op, void *pArg); + +/* +** CAPI3REF: Options for sqlite3session_object_config ** -** The following values may passed as the the 4th parameter to +** The following values may passed as the the 2nd parameter to ** sqlite3session_object_config(). ** ** <dt>SQLITE_SESSION_OBJCONFIG_SIZE <dd> @@ -10917,12 +11344,21 @@ SQLITE_API void sqlite3session_delete(sqlite3_session *pSession); ** ** It is an error (SQLITE_MISUSE) to attempt to modify this setting after ** the first table has been attached to the session object. +** +** <dt>SQLITE_SESSION_OBJCONFIG_ROWID <dd> +** This option is used to set, clear or query the flag that enables +** collection of data for tables with no explicit PRIMARY KEY. +** +** Normally, tables with no explicit PRIMARY KEY are simply ignored +** by the sessions module. However, if this flag is set, it behaves +** as if such tables have a column "_rowid_ INTEGER PRIMARY KEY" inserted +** as their leftmost columns. +** +** It is an error (SQLITE_MISUSE) to attempt to modify this setting after +** the first table has been attached to the session object. */ -SQLITE_API int sqlite3session_object_config(sqlite3_session*, int op, void *pArg); - -/* -*/ -#define SQLITE_SESSION_OBJCONFIG_SIZE 1 +#define SQLITE_SESSION_OBJCONFIG_SIZE 1 +#define SQLITE_SESSION_OBJCONFIG_ROWID 2 /* ** CAPI3REF: Enable Or Disable A Session Object @@ -11684,6 +12120,18 @@ SQLITE_API int sqlite3changeset_concat( /* +** CAPI3REF: Upgrade the Schema of a Changeset/Patchset +*/ +SQLITE_API int sqlite3changeset_upgrade( + sqlite3 *db, + const char *zDb, + int nIn, const void *pIn, /* Input changeset */ + int *pnOut, void **ppOut /* OUT: Inverse of input */ +); + + + +/* ** CAPI3REF: Changegroup Handle ** ** A changegroup is an object used to combine two or more @@ -11730,6 +12178,38 @@ typedef struct sqlite3_changegroup sqlite3_changegroup; SQLITE_API int sqlite3changegroup_new(sqlite3_changegroup **pp); /* +** CAPI3REF: Add a Schema to a Changegroup +** METHOD: sqlite3_changegroup_schema +** +** This method may be used to optionally enforce the rule that the changesets +** added to the changegroup handle must match the schema of database zDb +** ("main", "temp", or the name of an attached database). If +** sqlite3changegroup_add() is called to add a changeset that is not compatible +** with the configured schema, SQLITE_SCHEMA is returned and the changegroup +** object is left in an undefined state. +** +** A changeset schema is considered compatible with the database schema in +** the same way as for sqlite3changeset_apply(). Specifically, for each +** table in the changeset, there exists a database table with: +** +** <ul> +** <li> The name identified by the changeset, and +** <li> at least as many columns as recorded in the changeset, and +** <li> the primary key columns in the same position as recorded in +** the changeset. +** </ul> +** +** The output of the changegroup object always has the same schema as the +** database nominated using this function. In cases where changesets passed +** to sqlite3changegroup_add() have fewer columns than the corresponding table +** in the database schema, these are filled in using the default column +** values from the database schema. This makes it possible to combined +** changesets that have different numbers of columns for a single table +** within a changegroup, provided that they are otherwise compatible. +*/ +SQLITE_API int sqlite3changegroup_schema(sqlite3_changegroup*, sqlite3*, const char *zDb); + +/* ** CAPI3REF: Add A Changeset To A Changegroup ** METHOD: sqlite3_changegroup ** @@ -11797,13 +12277,18 @@ SQLITE_API int sqlite3changegroup_new(sqlite3_changegroup **pp); ** If the new changeset contains changes to a table that is already present ** in the changegroup, then the number of columns and the position of the ** primary key columns for the table must be consistent. If this is not the -** case, this function fails with SQLITE_SCHEMA. If the input changeset -** appears to be corrupt and the corruption is detected, SQLITE_CORRUPT is -** returned. Or, if an out-of-memory condition occurs during processing, this -** function returns SQLITE_NOMEM. In all cases, if an error occurs the state -** of the final contents of the changegroup is undefined. +** case, this function fails with SQLITE_SCHEMA. Except, if the changegroup +** object has been configured with a database schema using the +** sqlite3changegroup_schema() API, then it is possible to combine changesets +** with different numbers of columns for a single table, provided that +** they are otherwise compatible. ** -** If no error occurs, SQLITE_OK is returned. +** If the input changeset appears to be corrupt and the corruption is +** detected, SQLITE_CORRUPT is returned. Or, if an out-of-memory condition +** occurs during processing, this function returns SQLITE_NOMEM. +** +** In all cases, if an error occurs the state of the final contents of the +** changegroup is undefined. If no error occurs, SQLITE_OK is returned. */ SQLITE_API int sqlite3changegroup_add(sqlite3_changegroup*, int nData, void *pData); @@ -12055,9 +12540,30 @@ SQLITE_API int sqlite3changeset_apply_v2( ** Invert the changeset before applying it. This is equivalent to inverting ** a changeset using sqlite3changeset_invert() before applying it. It is ** an error to specify this flag with a patchset. +** +** <dt>SQLITE_CHANGESETAPPLY_IGNORENOOP <dd> +** Do not invoke the conflict handler callback for any changes that +** would not actually modify the database even if they were applied. +** Specifically, this means that the conflict handler is not invoked +** for: +** <ul> +** <li>a delete change if the row being deleted cannot be found, +** <li>an update change if the modified fields are already set to +** their new values in the conflicting row, or +** <li>an insert change if all fields of the conflicting row match +** the row being inserted. +** </ul> +** +** <dt>SQLITE_CHANGESETAPPLY_FKNOACTION <dd> +** If this flag it set, then all foreign key constraints in the target +** database behave as if they were declared with "ON UPDATE NO ACTION ON +** DELETE NO ACTION", even if they are actually CASCADE, RESTRICT, SET NULL +** or SET DEFAULT. */ #define SQLITE_CHANGESETAPPLY_NOSAVEPOINT 0x0001 #define SQLITE_CHANGESETAPPLY_INVERT 0x0002 +#define SQLITE_CHANGESETAPPLY_IGNORENOOP 0x0004 +#define SQLITE_CHANGESETAPPLY_FKNOACTION 0x0008 /* ** CAPI3REF: Constants Passed To The Conflict Handler @@ -12623,8 +13129,11 @@ struct Fts5PhraseIter { ** created with the "columnsize=0" option. ** ** xColumnText: -** This function attempts to retrieve the text of column iCol of the -** current document. If successful, (*pz) is set to point to a buffer +** If parameter iCol is less than zero, or greater than or equal to the +** number of columns in the table, SQLITE_RANGE is returned. +** +** Otherwise, this function attempts to retrieve the text of column iCol of +** the current document. If successful, (*pz) is set to point to a buffer ** containing the text in utf-8 encoding, (*pn) is set to the size in bytes ** (not characters) of the buffer and SQLITE_OK is returned. Otherwise, ** if an error occurs, an SQLite error code is returned and the final values @@ -12634,8 +13143,10 @@ struct Fts5PhraseIter { ** Returns the number of phrases in the current query expression. ** ** xPhraseSize: -** Returns the number of tokens in phrase iPhrase of the query. Phrases -** are numbered starting from zero. +** If parameter iCol is less than zero, or greater than or equal to the +** number of phrases in the current query, as returned by xPhraseCount, +** 0 is returned. Otherwise, this function returns the number of tokens in +** phrase iPhrase of the query. Phrases are numbered starting from zero. ** ** xInstCount: ** Set *pnInst to the total number of occurrences of all phrases within @@ -12651,12 +13162,13 @@ struct Fts5PhraseIter { ** Query for the details of phrase match iIdx within the current row. ** Phrase matches are numbered starting from zero, so the iIdx argument ** should be greater than or equal to zero and smaller than the value -** output by xInstCount(). +** output by xInstCount(). If iIdx is less than zero or greater than +** or equal to the value returned by xInstCount(), SQLITE_RANGE is returned. ** -** Usually, output parameter *piPhrase is set to the phrase number, *piCol +** Otherwise, output parameter *piPhrase is set to the phrase number, *piCol ** to the column in which it occurs and *piOff the token offset of the -** first token of the phrase. Returns SQLITE_OK if successful, or an error -** code (i.e. SQLITE_NOMEM) if an error occurs. +** first token of the phrase. SQLITE_OK is returned if successful, or an +** error code (i.e. SQLITE_NOMEM) if an error occurs. ** ** This API can be quite slow if used with an FTS5 table created with the ** "detail=none" or "detail=column" option. @@ -12682,6 +13194,10 @@ struct Fts5PhraseIter { ** Invoking Api.xUserData() returns a copy of the pointer passed as ** the third argument to pUserData. ** +** If parameter iPhrase is less than zero, or greater than or equal to +** the number of phrases in the query, as returned by xPhraseCount(), +** this function returns SQLITE_RANGE. +** ** If the callback function returns any value other than SQLITE_OK, the ** query is abandoned and the xQueryPhrase function returns immediately. ** If the returned value is SQLITE_DONE, xQueryPhrase returns SQLITE_OK. @@ -12796,6 +13312,39 @@ struct Fts5PhraseIter { ** ** xPhraseNextColumn() ** See xPhraseFirstColumn above. +** +** xQueryToken(pFts5, iPhrase, iToken, ppToken, pnToken) +** This is used to access token iToken of phrase iPhrase of the current +** query. Before returning, output parameter *ppToken is set to point +** to a buffer containing the requested token, and *pnToken to the +** size of this buffer in bytes. +** +** If iPhrase or iToken are less than zero, or if iPhrase is greater than +** or equal to the number of phrases in the query as reported by +** xPhraseCount(), or if iToken is equal to or greater than the number of +** tokens in the phrase, SQLITE_RANGE is returned and *ppToken and *pnToken + are both zeroed. +** +** The output text is not a copy of the query text that specified the +** token. It is the output of the tokenizer module. For tokendata=1 +** tables, this includes any embedded 0x00 and trailing data. +** +** xInstToken(pFts5, iIdx, iToken, ppToken, pnToken) +** This is used to access token iToken of phrase hit iIdx within the +** current row. If iIdx is less than zero or greater than or equal to the +** value returned by xInstCount(), SQLITE_RANGE is returned. Otherwise, +** output variable (*ppToken) is set to point to a buffer containing the +** matching document token, and (*pnToken) to the size of that buffer in +** bytes. This API is not available if the specified token matches a +** prefix query term. In that case both output variables are always set +** to 0. +** +** The output text is not a copy of the document text that was tokenized. +** It is the output of the tokenizer module. For tokendata=1 tables, this +** includes any embedded 0x00 and trailing data. +** +** This API can be quite slow if used with an FTS5 table created with the +** "detail=none" or "detail=column" option. */ struct Fts5ExtensionApi { int iVersion; /* Currently always set to 3 */ @@ -12833,6 +13382,13 @@ struct Fts5ExtensionApi { int (*xPhraseFirstColumn)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*); void (*xPhraseNextColumn)(Fts5Context*, Fts5PhraseIter*, int *piCol); + + /* Below this point are iVersion>=3 only */ + int (*xQueryToken)(Fts5Context*, + int iPhrase, int iToken, + const char **ppToken, int *pnToken + ); + int (*xInstToken)(Fts5Context*, int iIdx, int iToken, const char**, int*); }; /* @@ -13027,8 +13583,8 @@ struct Fts5ExtensionApi { ** as separate queries of the FTS index are required for each synonym. ** ** When using methods (2) or (3), it is important that the tokenizer only -** provide synonyms when tokenizing document text (method (2)) or query -** text (method (3)), not both. Doing so will not cause any errors, but is +** provide synonyms when tokenizing document text (method (3)) or query +** text (method (2)), not both. Doing so will not cause any errors, but is ** inefficient. */ typedef struct Fts5Tokenizer Fts5Tokenizer; @@ -13076,7 +13632,7 @@ struct fts5_api { int (*xCreateTokenizer)( fts5_api *pApi, const char *zName, - void *pContext, + void *pUserData, fts5_tokenizer *pTokenizer, void (*xDestroy)(void*) ); @@ -13085,7 +13641,7 @@ struct fts5_api { int (*xFindTokenizer)( fts5_api *pApi, const char *zName, - void **ppContext, + void **ppUserData, fts5_tokenizer *pTokenizer ); @@ -13093,7 +13649,7 @@ struct fts5_api { int (*xCreateFunction)( fts5_api *pApi, const char *zName, - void *pContext, + void *pUserData, fts5_extension_function xFunction, void (*xDestroy)(void*) ); @@ -13115,11 +13671,16 @@ struct fts5_api { /************** Continuing where we left off in sqliteInt.h ******************/ /* +** Reuse the STATIC_LRU for mutex access to sqlite3_temp_directory. +*/ +#define SQLITE_MUTEX_STATIC_TEMPDIR SQLITE_MUTEX_STATIC_VFS1 + +/* ** Include the configuration header output by 'configure' if we're using the ** autoconf-based build */ #if defined(_HAVE_SQLITE_CONFIG_H) && !defined(SQLITECONFIG_H) -#include "config.h" +#include "sqlite_cfg.h" #define SQLITECONFIG_H 1 #endif @@ -13199,7 +13760,7 @@ struct fts5_api { ** level of recursion for each term. A stack overflow can result ** if the number of terms is too large. In practice, most SQL ** never has more than 3 or 4 terms. Use a value of 0 to disable -** any limit on the number of terms in a compount SELECT. +** any limit on the number of terms in a compound SELECT. */ #ifndef SQLITE_MAX_COMPOUND_SELECT # define SQLITE_MAX_COMPOUND_SELECT 500 @@ -13314,7 +13875,7 @@ struct fts5_api { ** max_page_count macro. */ #ifndef SQLITE_MAX_PAGE_COUNT -# define SQLITE_MAX_PAGE_COUNT 1073741823 +# define SQLITE_MAX_PAGE_COUNT 0xfffffffe /* 4294967294 */ #endif /* @@ -13349,8 +13910,8 @@ struct fts5_api { #endif /* -** WAL mode depends on atomic aligned 32-bit loads and stores in a few -** places. The following macros try to make this explicit. +** A few places in the code require atomic load/store of aligned +** integer values. */ #ifndef __has_extension # define __has_extension(x) 0 /* compatibility with non-clang compilers */ @@ -13406,15 +13967,22 @@ struct fts5_api { #endif /* -** A macro to hint to the compiler that a function should not be +** Macros to hint to the compiler that a function should or should not be ** inlined. */ #if defined(__GNUC__) # define SQLITE_NOINLINE __attribute__((noinline)) +# define SQLITE_INLINE __attribute__((always_inline)) inline #elif defined(_MSC_VER) && _MSC_VER>=1310 # define SQLITE_NOINLINE __declspec(noinline) +# define SQLITE_INLINE __forceinline #else # define SQLITE_NOINLINE +# define SQLITE_INLINE +#endif +#if defined(SQLITE_COVERAGE_TEST) || defined(__STRICT_ANSI__) +# undef SQLITE_INLINE +# define SQLITE_INLINE #endif /* @@ -13437,6 +14005,29 @@ struct fts5_api { #endif /* +** Enable SQLITE_USE_SEH by default on MSVC builds. Only omit +** SEH support if the -DSQLITE_OMIT_SEH option is given. +*/ +#if defined(_MSC_VER) && !defined(SQLITE_OMIT_SEH) +# define SQLITE_USE_SEH 1 +#else +# undef SQLITE_USE_SEH +#endif + +/* +** Enable SQLITE_DIRECT_OVERFLOW_READ, unless the build explicitly +** disables it using -DSQLITE_DIRECT_OVERFLOW_READ=0 +*/ +#if defined(SQLITE_DIRECT_OVERFLOW_READ) && SQLITE_DIRECT_OVERFLOW_READ+1==1 + /* Disable if -DSQLITE_DIRECT_OVERFLOW_READ=0 */ +# undef SQLITE_DIRECT_OVERFLOW_READ +#else + /* In all other cases, enable */ +# define SQLITE_DIRECT_OVERFLOW_READ 1 +#endif + + +/* ** The SQLITE_THREADSAFE macro must be defined as 0, 1, or 2. ** 0 means mutexes are permanently disable and the library is never ** threadsafe. 1 means the library is serialized which is the highest @@ -14232,15 +14823,9 @@ typedef INT8_TYPE i8; /* 1-byte signed integer */ /* ** The datatype used to store estimates of the number of rows in a -** table or index. This is an unsigned integer type. For 99.9% of -** the world, a 32-bit integer is sufficient. But a 64-bit integer -** can be used at compile-time if desired. +** table or index. */ -#ifdef SQLITE_64BIT_STATS - typedef u64 tRowcnt; /* 64-bit only if requested at compile-time */ -#else - typedef u32 tRowcnt; /* 32-bit is the default */ -#endif +typedef u64 tRowcnt; /* ** Estimated quantities used for query planning are stored as 16-bit @@ -14301,8 +14886,31 @@ typedef INT16_TYPE LogEst; ** the end of buffer S. This macro returns true if P points to something ** contained within the buffer S. */ -#define SQLITE_WITHIN(P,S,E) (((uptr)(P)>=(uptr)(S))&&((uptr)(P)<(uptr)(E))) +#define SQLITE_WITHIN(P,S,E) (((uptr)(P)>=(uptr)(S))&&((uptr)(P)<(uptr)(E))) +/* +** P is one byte past the end of a large buffer. Return true if a span of bytes +** between S..E crosses the end of that buffer. In other words, return true +** if the sub-buffer S..E-1 overflows the buffer whose last byte is P-1. +** +** S is the start of the span. E is one byte past the end of end of span. +** +** P +** |-----------------| FALSE +** |-------| +** S E +** +** P +** |-----------------| +** |-------| TRUE +** S E +** +** P +** |-----------------| +** |-------| FALSE +** S E +*/ +#define SQLITE_OVERFLOW(P,S,E) (((uptr)(S)<(uptr)(P))&&((uptr)(E)>(uptr)(P))) /* ** Macros to determine whether the machine is big or little endian, @@ -14312,16 +14920,33 @@ typedef INT16_TYPE LogEst; ** using C-preprocessor macros. If that is unsuccessful, or if ** -DSQLITE_BYTEORDER=0 is set, then byte-order is determined ** at run-time. +** +** If you are building SQLite on some obscure platform for which the +** following ifdef magic does not work, you can always include either: +** +** -DSQLITE_BYTEORDER=1234 +** +** or +** +** -DSQLITE_BYTEORDER=4321 +** +** to cause the build to work for little-endian or big-endian processors, +** respectively. */ -#ifndef SQLITE_BYTEORDER -# if defined(i386) || defined(__i386__) || defined(_M_IX86) || \ +#ifndef SQLITE_BYTEORDER /* Replicate changes at tag-20230904a */ +# if defined(__BYTE_ORDER__) && __BYTE_ORDER__==__ORDER_BIG_ENDIAN__ +# define SQLITE_BYTEORDER 4321 +# elif defined(__BYTE_ORDER__) && __BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__ +# define SQLITE_BYTEORDER 1234 +# elif defined(__BIG_ENDIAN__) && __BIG_ENDIAN__==1 +# define SQLITE_BYTEORDER 4321 +# elif defined(i386) || defined(__i386__) || defined(_M_IX86) || \ defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || \ defined(_M_AMD64) || defined(_M_ARM) || defined(__x86) || \ defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64) -# define SQLITE_BYTEORDER 1234 -# elif defined(sparc) || defined(__ppc__) || \ - defined(__ARMEB__) || defined(__AARCH64EB__) -# define SQLITE_BYTEORDER 4321 +# define SQLITE_BYTEORDER 1234 +# elif defined(sparc) || defined(__ARMEB__) || defined(__AARCH64EB__) +# define SQLITE_BYTEORDER 4321 # else # define SQLITE_BYTEORDER 0 # endif @@ -14357,8 +14982,19 @@ typedef INT16_TYPE LogEst; /* ** Round up a number to the next larger multiple of 8. This is used ** to force 8-byte alignment on 64-bit architectures. +** +** ROUND8() always does the rounding, for any argument. +** +** ROUND8P() assumes that the argument is already an integer number of +** pointers in size, and so it is a no-op on systems where the pointer +** size is 8. */ #define ROUND8(x) (((x)+7)&~7) +#if SQLITE_PTRSIZE==8 +# define ROUND8P(x) (x) +#else +# define ROUND8P(x) (((x)+7)&~7) +#endif /* ** Round down to the nearest multiple of 8 @@ -14375,9 +15011,9 @@ typedef INT16_TYPE LogEst; ** pointers. In that case, only verify 4-byte alignment. */ #ifdef SQLITE_4_BYTE_ALIGNED_MALLOC -# define EIGHT_BYTE_ALIGNMENT(X) ((((char*)(X) - (char*)0)&3)==0) +# define EIGHT_BYTE_ALIGNMENT(X) ((((uptr)(X) - (uptr)0)&3)==0) #else -# define EIGHT_BYTE_ALIGNMENT(X) ((((char*)(X) - (char*)0)&7)==0) +# define EIGHT_BYTE_ALIGNMENT(X) ((((uptr)(X) - (uptr)0)&7)==0) #endif /* @@ -14421,24 +15057,48 @@ typedef INT16_TYPE LogEst; #endif /* -** SELECTTRACE_ENABLED will be either 1 or 0 depending on whether or not -** the Select query generator tracing logic is turned on. +** TREETRACE_ENABLED will be either 1 or 0 depending on whether or not +** the Abstract Syntax Tree tracing logic is turned on. */ #if !defined(SQLITE_AMALGAMATION) -SQLITE_PRIVATE u32 sqlite3SelectTrace; +SQLITE_PRIVATE u32 sqlite3TreeTrace; #endif #if defined(SQLITE_DEBUG) \ - && (defined(SQLITE_TEST) || defined(SQLITE_ENABLE_SELECTTRACE)) -# define SELECTTRACE_ENABLED 1 -# define SELECTTRACE(K,P,S,X) \ - if(sqlite3SelectTrace&(K)) \ + && (defined(SQLITE_TEST) || defined(SQLITE_ENABLE_SELECTTRACE) \ + || defined(SQLITE_ENABLE_TREETRACE)) +# define TREETRACE_ENABLED 1 +# define TREETRACE(K,P,S,X) \ + if(sqlite3TreeTrace&(K)) \ sqlite3DebugPrintf("%u/%d/%p: ",(S)->selId,(P)->addrExplain,(S)),\ sqlite3DebugPrintf X #else -# define SELECTTRACE(K,P,S,X) -# define SELECTTRACE_ENABLED 0 +# define TREETRACE(K,P,S,X) +# define TREETRACE_ENABLED 0 #endif +/* TREETRACE flag meanings: +** +** 0x00000001 Beginning and end of SELECT processing +** 0x00000002 WHERE clause processing +** 0x00000004 Query flattener +** 0x00000008 Result-set wildcard expansion +** 0x00000010 Query name resolution +** 0x00000020 Aggregate analysis +** 0x00000040 Window functions +** 0x00000080 Generated column names +** 0x00000100 Move HAVING terms into WHERE +** 0x00000200 Count-of-view optimization +** 0x00000400 Compound SELECT processing +** 0x00000800 Drop superfluous ORDER BY +** 0x00001000 LEFT JOIN simplifies to JOIN +** 0x00002000 Constant propagation +** 0x00004000 Push-down optimization +** 0x00008000 After all FROM-clause analysis +** 0x00010000 Beginning of DELETE/INSERT/UPDATE processing +** 0x00020000 Transform DISTINCT into GROUP BY +** 0x00040000 SELECT tree dump after all code has been generated +*/ + /* ** Macros for "wheretrace" */ @@ -14451,6 +15111,36 @@ SQLITE_PRIVATE u32 sqlite3WhereTrace; # define WHERETRACE(K,X) #endif +/* +** Bits for the sqlite3WhereTrace mask: +** +** (---any--) Top-level block structure +** 0x-------F High-level debug messages +** 0x----FFF- More detail +** 0xFFFF---- Low-level debug messages +** +** 0x00000001 Code generation +** 0x00000002 Solver +** 0x00000004 Solver costs +** 0x00000008 WhereLoop inserts +** +** 0x00000010 Display sqlite3_index_info xBestIndex calls +** 0x00000020 Range an equality scan metrics +** 0x00000040 IN operator decisions +** 0x00000080 WhereLoop cost adjustements +** 0x00000100 +** 0x00000200 Covering index decisions +** 0x00000400 OR optimization +** 0x00000800 Index scanner +** 0x00001000 More details associated with code generation +** 0x00002000 +** 0x00004000 Show all WHERE terms at key points +** 0x00008000 Show the full SELECT statement at key places +** +** 0x00010000 Show more detail when printing WHERE terms +** 0x00020000 Show WHERE terms returned from whereScanNext() +*/ + /* ** An instance of the following structure is used to store the busy-handler @@ -14471,7 +15161,7 @@ struct BusyHandler { /* ** Name of table that holds the database schema. ** -** The PREFERRED names are used whereever possible. But LEGACY is also +** The PREFERRED names are used wherever possible. But LEGACY is also ** used for backwards compatibility. ** ** 1. Queries can use either the PREFERRED or the LEGACY names @@ -14521,7 +15211,7 @@ struct BusyHandler { ** pointer will work here as long as it is distinct from SQLITE_STATIC ** and SQLITE_TRANSIENT. */ -#define SQLITE_DYNAMIC ((sqlite3_destructor_type)sqlite3OomFault) +#define SQLITE_DYNAMIC ((sqlite3_destructor_type)sqlite3OomClear) /* ** When SQLITE_OMIT_WSD is defined, it means that the target platform does @@ -14580,16 +15270,19 @@ typedef struct Column Column; typedef struct Cte Cte; typedef struct CteUse CteUse; typedef struct Db Db; +typedef struct DbClientData DbClientData; typedef struct DbFixer DbFixer; typedef struct Schema Schema; typedef struct Expr Expr; typedef struct ExprList ExprList; typedef struct FKey FKey; +typedef struct FpDecode FpDecode; typedef struct FuncDestructor FuncDestructor; typedef struct FuncDef FuncDef; typedef struct FuncDefHash FuncDefHash; typedef struct IdList IdList; typedef struct Index Index; +typedef struct IndexedExpr IndexedExpr; typedef struct IndexSample IndexSample; typedef struct KeyClass KeyClass; typedef struct KeyInfo KeyInfo; @@ -14597,10 +15290,12 @@ typedef struct Lookaside Lookaside; typedef struct LookasideSlot LookasideSlot; typedef struct Module Module; typedef struct NameContext NameContext; +typedef struct OnOrUsing OnOrUsing; typedef struct Parse Parse; typedef struct ParseCleanup ParseCleanup; typedef struct PreUpdate PreUpdate; typedef struct PrintfArguments PrintfArguments; +typedef struct RCStr RCStr; typedef struct RenameToken RenameToken; typedef struct Returning Returning; typedef struct RowSet RowSet; @@ -14654,6 +15349,7 @@ typedef struct With With; #define MASKBIT32(n) (((unsigned int)1)<<(n)) #define SMASKBIT32(n) ((n)<=31?((unsigned int)1)<<(n):0) #define ALLBITS ((Bitmask)-1) +#define TOPBIT (((Bitmask)1)<<(BMS-1)) /* A VList object records a mapping between parameters/variables/wildcards ** in the SQL statement (such as $abc, @pqr, or :xyz) and the integer @@ -14668,6 +15364,331 @@ typedef int VList; ** "BusyHandler" typedefs. vdbe.h also requires a few of the opaque ** pointer types (i.e. FuncDef) defined above. */ +/************** Include os.h in the middle of sqliteInt.h ********************/ +/************** Begin file os.h **********************************************/ +/* +** 2001 September 16 +** +** The author disclaims copyright to this source code. In place of +** a legal notice, here is a blessing: +** +** May you do good and not evil. +** May you find forgiveness for yourself and forgive others. +** May you share freely, never taking more than you give. +** +****************************************************************************** +** +** This header file (together with is companion C source-code file +** "os.c") attempt to abstract the underlying operating system so that +** the SQLite library will work on both POSIX and windows systems. +** +** This header file is #include-ed by sqliteInt.h and thus ends up +** being included by every source file. +*/ +#ifndef _SQLITE_OS_H_ +#define _SQLITE_OS_H_ + +/* +** Attempt to automatically detect the operating system and setup the +** necessary pre-processor macros for it. +*/ +/************** Include os_setup.h in the middle of os.h *********************/ +/************** Begin file os_setup.h ****************************************/ +/* +** 2013 November 25 +** +** The author disclaims copyright to this source code. In place of +** a legal notice, here is a blessing: +** +** May you do good and not evil. +** May you find forgiveness for yourself and forgive others. +** May you share freely, never taking more than you give. +** +****************************************************************************** +** +** This file contains pre-processor directives related to operating system +** detection and/or setup. +*/ +#ifndef SQLITE_OS_SETUP_H +#define SQLITE_OS_SETUP_H + +/* +** Figure out if we are dealing with Unix, Windows, or some other operating +** system. +** +** After the following block of preprocess macros, all of +** +** SQLITE_OS_KV +** SQLITE_OS_OTHER +** SQLITE_OS_UNIX +** SQLITE_OS_WIN +** +** will defined to either 1 or 0. One of them will be 1. The others will be 0. +** If none of the macros are initially defined, then select either +** SQLITE_OS_UNIX or SQLITE_OS_WIN depending on the target platform. +** +** If SQLITE_OS_OTHER=1 is specified at compile-time, then the application +** must provide its own VFS implementation together with sqlite3_os_init() +** and sqlite3_os_end() routines. +*/ +#if !defined(SQLITE_OS_KV) && !defined(SQLITE_OS_OTHER) && \ + !defined(SQLITE_OS_UNIX) && !defined(SQLITE_OS_WIN) +# if defined(_WIN32) || defined(WIN32) || defined(__CYGWIN__) || \ + defined(__MINGW32__) || defined(__BORLANDC__) +# define SQLITE_OS_WIN 1 +# define SQLITE_OS_UNIX 0 +# else +# define SQLITE_OS_WIN 0 +# define SQLITE_OS_UNIX 1 +# endif +#endif +#if SQLITE_OS_OTHER+1>1 +# undef SQLITE_OS_KV +# define SQLITE_OS_KV 0 +# undef SQLITE_OS_UNIX +# define SQLITE_OS_UNIX 0 +# undef SQLITE_OS_WIN +# define SQLITE_OS_WIN 0 +#endif +#if SQLITE_OS_KV+1>1 +# undef SQLITE_OS_OTHER +# define SQLITE_OS_OTHER 0 +# undef SQLITE_OS_UNIX +# define SQLITE_OS_UNIX 0 +# undef SQLITE_OS_WIN +# define SQLITE_OS_WIN 0 +# define SQLITE_OMIT_LOAD_EXTENSION 1 +# define SQLITE_OMIT_WAL 1 +# define SQLITE_OMIT_DEPRECATED 1 +# undef SQLITE_TEMP_STORE +# define SQLITE_TEMP_STORE 3 /* Always use memory for temporary storage */ +# define SQLITE_DQS 0 +# define SQLITE_OMIT_SHARED_CACHE 1 +# define SQLITE_OMIT_AUTOINIT 1 +#endif +#if SQLITE_OS_UNIX+1>1 +# undef SQLITE_OS_KV +# define SQLITE_OS_KV 0 +# undef SQLITE_OS_OTHER +# define SQLITE_OS_OTHER 0 +# undef SQLITE_OS_WIN +# define SQLITE_OS_WIN 0 +#endif +#if SQLITE_OS_WIN+1>1 +# undef SQLITE_OS_KV +# define SQLITE_OS_KV 0 +# undef SQLITE_OS_OTHER +# define SQLITE_OS_OTHER 0 +# undef SQLITE_OS_UNIX +# define SQLITE_OS_UNIX 0 +#endif + + +#endif /* SQLITE_OS_SETUP_H */ + +/************** End of os_setup.h ********************************************/ +/************** Continuing where we left off in os.h *************************/ + +/* If the SET_FULLSYNC macro is not defined above, then make it +** a no-op +*/ +#ifndef SET_FULLSYNC +# define SET_FULLSYNC(x,y) +#endif + +/* Maximum pathname length. Note: FILENAME_MAX defined by stdio.h +*/ +#ifndef SQLITE_MAX_PATHLEN +# define SQLITE_MAX_PATHLEN FILENAME_MAX +#endif + +/* Maximum number of symlinks that will be resolved while trying to +** expand a filename in xFullPathname() in the VFS. +*/ +#ifndef SQLITE_MAX_SYMLINK +# define SQLITE_MAX_SYMLINK 200 +#endif + +/* +** The default size of a disk sector +*/ +#ifndef SQLITE_DEFAULT_SECTOR_SIZE +# define SQLITE_DEFAULT_SECTOR_SIZE 4096 +#endif + +/* +** Temporary files are named starting with this prefix followed by 16 random +** alphanumeric characters, and no file extension. They are stored in the +** OS's standard temporary file directory, and are deleted prior to exit. +** If sqlite is being embedded in another program, you may wish to change the +** prefix to reflect your program's name, so that if your program exits +** prematurely, old temporary files can be easily identified. This can be done +** using -DSQLITE_TEMP_FILE_PREFIX=myprefix_ on the compiler command line. +** +** 2006-10-31: The default prefix used to be "sqlite_". But then +** Mcafee started using SQLite in their anti-virus product and it +** started putting files with the "sqlite" name in the c:/temp folder. +** This annoyed many windows users. Those users would then do a +** Google search for "sqlite", find the telephone numbers of the +** developers and call to wake them up at night and complain. +** For this reason, the default name prefix is changed to be "sqlite" +** spelled backwards. So the temp files are still identified, but +** anybody smart enough to figure out the code is also likely smart +** enough to know that calling the developer will not help get rid +** of the file. +*/ +#ifndef SQLITE_TEMP_FILE_PREFIX +# define SQLITE_TEMP_FILE_PREFIX "etilqs_" +#endif + +/* +** The following values may be passed as the second argument to +** sqlite3OsLock(). The various locks exhibit the following semantics: +** +** SHARED: Any number of processes may hold a SHARED lock simultaneously. +** RESERVED: A single process may hold a RESERVED lock on a file at +** any time. Other processes may hold and obtain new SHARED locks. +** PENDING: A single process may hold a PENDING lock on a file at +** any one time. Existing SHARED locks may persist, but no new +** SHARED locks may be obtained by other processes. +** EXCLUSIVE: An EXCLUSIVE lock precludes all other locks. +** +** PENDING_LOCK may not be passed directly to sqlite3OsLock(). Instead, a +** process that requests an EXCLUSIVE lock may actually obtain a PENDING +** lock. This can be upgraded to an EXCLUSIVE lock by a subsequent call to +** sqlite3OsLock(). +*/ +#define NO_LOCK 0 +#define SHARED_LOCK 1 +#define RESERVED_LOCK 2 +#define PENDING_LOCK 3 +#define EXCLUSIVE_LOCK 4 + +/* +** File Locking Notes: (Mostly about windows but also some info for Unix) +** +** We cannot use LockFileEx() or UnlockFileEx() on Win95/98/ME because +** those functions are not available. So we use only LockFile() and +** UnlockFile(). +** +** LockFile() prevents not just writing but also reading by other processes. +** A SHARED_LOCK is obtained by locking a single randomly-chosen +** byte out of a specific range of bytes. The lock byte is obtained at +** random so two separate readers can probably access the file at the +** same time, unless they are unlucky and choose the same lock byte. +** An EXCLUSIVE_LOCK is obtained by locking all bytes in the range. +** There can only be one writer. A RESERVED_LOCK is obtained by locking +** a single byte of the file that is designated as the reserved lock byte. +** A PENDING_LOCK is obtained by locking a designated byte different from +** the RESERVED_LOCK byte. +** +** On WinNT/2K/XP systems, LockFileEx() and UnlockFileEx() are available, +** which means we can use reader/writer locks. When reader/writer locks +** are used, the lock is placed on the same range of bytes that is used +** for probabilistic locking in Win95/98/ME. Hence, the locking scheme +** will support two or more Win95 readers or two or more WinNT readers. +** But a single Win95 reader will lock out all WinNT readers and a single +** WinNT reader will lock out all other Win95 readers. +** +** The following #defines specify the range of bytes used for locking. +** SHARED_SIZE is the number of bytes available in the pool from which +** a random byte is selected for a shared lock. The pool of bytes for +** shared locks begins at SHARED_FIRST. +** +** The same locking strategy and +** byte ranges are used for Unix. This leaves open the possibility of having +** clients on win95, winNT, and unix all talking to the same shared file +** and all locking correctly. To do so would require that samba (or whatever +** tool is being used for file sharing) implements locks correctly between +** windows and unix. I'm guessing that isn't likely to happen, but by +** using the same locking range we are at least open to the possibility. +** +** Locking in windows is manditory. For this reason, we cannot store +** actual data in the bytes used for locking. The pager never allocates +** the pages involved in locking therefore. SHARED_SIZE is selected so +** that all locks will fit on a single page even at the minimum page size. +** PENDING_BYTE defines the beginning of the locks. By default PENDING_BYTE +** is set high so that we don't have to allocate an unused page except +** for very large databases. But one should test the page skipping logic +** by setting PENDING_BYTE low and running the entire regression suite. +** +** Changing the value of PENDING_BYTE results in a subtly incompatible +** file format. Depending on how it is changed, you might not notice +** the incompatibility right away, even running a full regression test. +** The default location of PENDING_BYTE is the first byte past the +** 1GB boundary. +** +*/ +#ifdef SQLITE_OMIT_WSD +# define PENDING_BYTE (0x40000000) +#else +# define PENDING_BYTE sqlite3PendingByte +#endif +#define RESERVED_BYTE (PENDING_BYTE+1) +#define SHARED_FIRST (PENDING_BYTE+2) +#define SHARED_SIZE 510 + +/* +** Wrapper around OS specific sqlite3_os_init() function. +*/ +SQLITE_PRIVATE int sqlite3OsInit(void); + +/* +** Functions for accessing sqlite3_file methods +*/ +SQLITE_PRIVATE void sqlite3OsClose(sqlite3_file*); +SQLITE_PRIVATE int sqlite3OsRead(sqlite3_file*, void*, int amt, i64 offset); +SQLITE_PRIVATE int sqlite3OsWrite(sqlite3_file*, const void*, int amt, i64 offset); +SQLITE_PRIVATE int sqlite3OsTruncate(sqlite3_file*, i64 size); +SQLITE_PRIVATE int sqlite3OsSync(sqlite3_file*, int); +SQLITE_PRIVATE int sqlite3OsFileSize(sqlite3_file*, i64 *pSize); +SQLITE_PRIVATE int sqlite3OsLock(sqlite3_file*, int); +SQLITE_PRIVATE int sqlite3OsUnlock(sqlite3_file*, int); +SQLITE_PRIVATE int sqlite3OsCheckReservedLock(sqlite3_file *id, int *pResOut); +SQLITE_PRIVATE int sqlite3OsFileControl(sqlite3_file*,int,void*); +SQLITE_PRIVATE void sqlite3OsFileControlHint(sqlite3_file*,int,void*); +#define SQLITE_FCNTL_DB_UNCHANGED 0xca093fa0 +SQLITE_PRIVATE int sqlite3OsSectorSize(sqlite3_file *id); +SQLITE_PRIVATE int sqlite3OsDeviceCharacteristics(sqlite3_file *id); +#ifndef SQLITE_OMIT_WAL +SQLITE_PRIVATE int sqlite3OsShmMap(sqlite3_file *,int,int,int,void volatile **); +SQLITE_PRIVATE int sqlite3OsShmLock(sqlite3_file *id, int, int, int); +SQLITE_PRIVATE void sqlite3OsShmBarrier(sqlite3_file *id); +SQLITE_PRIVATE int sqlite3OsShmUnmap(sqlite3_file *id, int); +#endif /* SQLITE_OMIT_WAL */ +SQLITE_PRIVATE int sqlite3OsFetch(sqlite3_file *id, i64, int, void **); +SQLITE_PRIVATE int sqlite3OsUnfetch(sqlite3_file *, i64, void *); + + +/* +** Functions for accessing sqlite3_vfs methods +*/ +SQLITE_PRIVATE int sqlite3OsOpen(sqlite3_vfs *, const char *, sqlite3_file*, int, int *); +SQLITE_PRIVATE int sqlite3OsDelete(sqlite3_vfs *, const char *, int); +SQLITE_PRIVATE int sqlite3OsAccess(sqlite3_vfs *, const char *, int, int *pResOut); +SQLITE_PRIVATE int sqlite3OsFullPathname(sqlite3_vfs *, const char *, int, char *); +#ifndef SQLITE_OMIT_LOAD_EXTENSION +SQLITE_PRIVATE void *sqlite3OsDlOpen(sqlite3_vfs *, const char *); +SQLITE_PRIVATE void sqlite3OsDlError(sqlite3_vfs *, int, char *); +SQLITE_PRIVATE void (*sqlite3OsDlSym(sqlite3_vfs *, void *, const char *))(void); +SQLITE_PRIVATE void sqlite3OsDlClose(sqlite3_vfs *, void *); +#endif /* SQLITE_OMIT_LOAD_EXTENSION */ +SQLITE_PRIVATE int sqlite3OsRandomness(sqlite3_vfs *, int, char *); +SQLITE_PRIVATE int sqlite3OsSleep(sqlite3_vfs *, int); +SQLITE_PRIVATE int sqlite3OsGetLastError(sqlite3_vfs*); +SQLITE_PRIVATE int sqlite3OsCurrentTimeInt64(sqlite3_vfs *, sqlite3_int64*); + +/* +** Convenience functions for opening and closing files using +** sqlite3_malloc() to obtain space for the file-handle structure. +*/ +SQLITE_PRIVATE int sqlite3OsOpenMalloc(sqlite3_vfs *, const char *, sqlite3_file **, int,int*); +SQLITE_PRIVATE void sqlite3OsCloseFree(sqlite3_file *); + +#endif /* _SQLITE_OS_H_ */ + +/************** End of os.h **************************************************/ +/************** Continuing where we left off in sqliteInt.h ******************/ /************** Include pager.h in the middle of sqliteInt.h *****************/ /************** Begin file pager.h *******************************************/ /* @@ -14715,14 +15736,15 @@ typedef struct Pager Pager; typedef struct PgHdr DbPage; /* -** Page number PAGER_MJ_PGNO is never used in an SQLite database (it is +** Page number PAGER_SJ_PGNO is never used in an SQLite database (it is ** reserved for working around a windows/posix incompatibility). It is ** used in the journal to signify that the remainder of the journal file ** is devoted to storing a super-journal name - there are no more pages to ** roll back. See comments for function writeSuperJournal() in pager.c ** for details. */ -#define PAGER_MJ_PGNO(x) ((Pgno)((PENDING_BYTE/((x)->pageSize))+1)) +#define PAGER_SJ_PGNO_COMPUTED(x) ((Pgno)((PENDING_BYTE/((x)->pageSize))+1)) +#define PAGER_SJ_PGNO(x) ((x)->lckPgno) /* ** Allowed values for the flags parameter to sqlite3PagerOpen(). @@ -14887,7 +15909,7 @@ SQLITE_PRIVATE sqlite3_file *sqlite3PagerJrnlFile(Pager*); SQLITE_PRIVATE const char *sqlite3PagerJournalname(Pager*); SQLITE_PRIVATE void *sqlite3PagerTempSpace(Pager*); SQLITE_PRIVATE int sqlite3PagerIsMemdb(Pager*); -SQLITE_PRIVATE void sqlite3PagerCacheStat(Pager *, int, int, int *); +SQLITE_PRIVATE void sqlite3PagerCacheStat(Pager *, int, int, u64*); SQLITE_PRIVATE void sqlite3PagerClearCache(Pager*); SQLITE_PRIVATE int sqlite3SectorSize(sqlite3_file *); @@ -14911,6 +15933,10 @@ SQLITE_PRIVATE void sqlite3PagerRefdump(Pager*); # define enable_simulated_io_errors() #endif +#if defined(SQLITE_USE_SEH) && !defined(SQLITE_OMIT_WAL) +SQLITE_PRIVATE int sqlite3PagerWalSystemErrno(Pager*); +#endif + #endif /* SQLITE_PAGER_H */ /************** End of pager.h ***********************************************/ @@ -15102,7 +16128,7 @@ SQLITE_PRIVATE int sqlite3BtreeNewDb(Btree *p); ** reduce network bandwidth. ** ** Note that BTREE_HINT_FLAGS with BTREE_BULKLOAD is the only hint used by -** standard SQLite. The other hints are provided for extentions that use +** standard SQLite. The other hints are provided for extensions that use ** the SQLite parser and code generator but substitute their own storage ** engine. */ @@ -15240,15 +16266,21 @@ SQLITE_PRIVATE int sqlite3BtreePrevious(BtCursor*, int flags); SQLITE_PRIVATE i64 sqlite3BtreeIntegerKey(BtCursor*); SQLITE_PRIVATE void sqlite3BtreeCursorPin(BtCursor*); SQLITE_PRIVATE void sqlite3BtreeCursorUnpin(BtCursor*); -#ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC SQLITE_PRIVATE i64 sqlite3BtreeOffset(BtCursor*); -#endif SQLITE_PRIVATE int sqlite3BtreePayload(BtCursor*, u32 offset, u32 amt, void*); SQLITE_PRIVATE const void *sqlite3BtreePayloadFetch(BtCursor*, u32 *pAmt); SQLITE_PRIVATE u32 sqlite3BtreePayloadSize(BtCursor*); SQLITE_PRIVATE sqlite3_int64 sqlite3BtreeMaxRecordSize(BtCursor*); -SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck(sqlite3*,Btree*,Pgno*aRoot,int nRoot,int,int*); +SQLITE_PRIVATE int sqlite3BtreeIntegrityCheck( + sqlite3 *db, /* Database connection that is running the check */ + Btree *p, /* The btree to be checked */ + Pgno *aRoot, /* An array of root pages numbers for individual trees */ + int nRoot, /* Number of entries in aRoot[] */ + int mxErr, /* Stop reporting errors after this many */ + int *pnErr, /* OUT: Write number of errors seen to this variable */ + char **pzOut /* OUT: Write the error message string here */ +); SQLITE_PRIVATE struct Pager *sqlite3BtreePager(Btree*); SQLITE_PRIVATE i64 sqlite3BtreeRowCountEst(BtCursor*); @@ -15287,6 +16319,8 @@ SQLITE_PRIVATE int sqlite3BtreeCheckpoint(Btree*, int, int *, int *); SQLITE_PRIVATE int sqlite3BtreeTransferRow(BtCursor*, BtCursor*, i64); +SQLITE_PRIVATE void sqlite3BtreeClearCache(Btree*); + /* ** If we are not using shared cache, then there is no need to ** use mutexes to access the BtShared structures. So make the @@ -15399,19 +16433,18 @@ struct VdbeOp { #ifdef SQLITE_ENABLE_CURSOR_HINTS Expr *pExpr; /* Used when p4type is P4_EXPR */ #endif - int (*xAdvance)(BtCursor *, int); } p4; #ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS char *zComment; /* Comment to improve readability */ #endif -#ifdef VDBE_PROFILE - u32 cnt; /* Number of times this instruction was executed */ - u64 cycles; /* Total time spent executing this instruction */ -#endif #ifdef SQLITE_VDBE_COVERAGE u32 iSrcLine; /* Source-code line that generated this opcode ** with flags in the upper 8 bits */ #endif +#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || defined(VDBE_PROFILE) + u64 nExec; + u64 nCycle; +#endif }; typedef struct VdbeOp VdbeOp; @@ -15450,21 +16483,20 @@ typedef struct VdbeOpList VdbeOpList; #define P4_COLLSEQ (-2) /* P4 is a pointer to a CollSeq structure */ #define P4_INT32 (-3) /* P4 is a 32-bit signed integer */ #define P4_SUBPROGRAM (-4) /* P4 is a pointer to a SubProgram structure */ -#define P4_ADVANCE (-5) /* P4 is a pointer to BtreeNext() or BtreePrev() */ -#define P4_TABLE (-6) /* P4 is a pointer to a Table structure */ +#define P4_TABLE (-5) /* P4 is a pointer to a Table structure */ /* Above do not own any resources. Must free those below */ -#define P4_FREE_IF_LE (-7) -#define P4_DYNAMIC (-7) /* Pointer to memory from sqliteMalloc() */ -#define P4_FUNCDEF (-8) /* P4 is a pointer to a FuncDef structure */ -#define P4_KEYINFO (-9) /* P4 is a pointer to a KeyInfo structure */ -#define P4_EXPR (-10) /* P4 is a pointer to an Expr tree */ -#define P4_MEM (-11) /* P4 is a pointer to a Mem* structure */ -#define P4_VTAB (-12) /* P4 is a pointer to an sqlite3_vtab structure */ -#define P4_REAL (-13) /* P4 is a 64-bit floating point value */ -#define P4_INT64 (-14) /* P4 is a 64-bit signed integer */ -#define P4_INTARRAY (-15) /* P4 is a vector of 32-bit integers */ -#define P4_FUNCCTX (-16) /* P4 is a pointer to an sqlite3_context object */ -#define P4_DYNBLOB (-17) /* Pointer to memory from sqliteMalloc() */ +#define P4_FREE_IF_LE (-6) +#define P4_DYNAMIC (-6) /* Pointer to memory from sqliteMalloc() */ +#define P4_FUNCDEF (-7) /* P4 is a pointer to a FuncDef structure */ +#define P4_KEYINFO (-8) /* P4 is a pointer to a KeyInfo structure */ +#define P4_EXPR (-9) /* P4 is a pointer to an Expr tree */ +#define P4_MEM (-10) /* P4 is a pointer to a Mem* structure */ +#define P4_VTAB (-11) /* P4 is a pointer to an sqlite3_vtab structure */ +#define P4_REAL (-12) /* P4 is a 64-bit floating point value */ +#define P4_INT64 (-13) /* P4 is a 64-bit signed integer */ +#define P4_INTARRAY (-14) /* P4 is a vector of 32-bit integers */ +#define P4_FUNCCTX (-15) /* P4 is a pointer to an sqlite3_context object */ +#define P4_TABLEREF (-16) /* Like P4_TABLE, but reference counted */ /* Error message codes for OP_Halt */ #define P5_ConstraintNotNull 1 @@ -15509,53 +16541,53 @@ typedef struct VdbeOpList VdbeOpList; #define OP_Savepoint 0 #define OP_AutoCommit 1 #define OP_Transaction 2 -#define OP_SorterNext 3 /* jump */ -#define OP_Prev 4 /* jump */ -#define OP_Next 5 /* jump */ -#define OP_Checkpoint 6 -#define OP_JournalMode 7 -#define OP_Vacuum 8 -#define OP_VFilter 9 /* jump, synopsis: iplan=r[P3] zplan='P4' */ -#define OP_VUpdate 10 /* synopsis: data=r[P3@P2] */ -#define OP_Goto 11 /* jump */ -#define OP_Gosub 12 /* jump */ -#define OP_InitCoroutine 13 /* jump */ -#define OP_Yield 14 /* jump */ -#define OP_MustBeInt 15 /* jump */ -#define OP_Jump 16 /* jump */ -#define OP_Once 17 /* jump */ -#define OP_If 18 /* jump */ +#define OP_Checkpoint 3 +#define OP_JournalMode 4 +#define OP_Vacuum 5 +#define OP_VFilter 6 /* jump, synopsis: iplan=r[P3] zplan='P4' */ +#define OP_VUpdate 7 /* synopsis: data=r[P3@P2] */ +#define OP_Init 8 /* jump, synopsis: Start at P2 */ +#define OP_Goto 9 /* jump */ +#define OP_Gosub 10 /* jump */ +#define OP_InitCoroutine 11 /* jump */ +#define OP_Yield 12 /* jump */ +#define OP_MustBeInt 13 /* jump */ +#define OP_Jump 14 /* jump */ +#define OP_Once 15 /* jump */ +#define OP_If 16 /* jump */ +#define OP_IfNot 17 /* jump */ +#define OP_IsType 18 /* jump, synopsis: if typeof(P1.P3) in P5 goto P2 */ #define OP_Not 19 /* same as TK_NOT, synopsis: r[P2]= !r[P1] */ -#define OP_IfNot 20 /* jump */ -#define OP_IsNullOrType 21 /* jump, synopsis: if typeof(r[P1]) IN (P3,5) goto P2 */ -#define OP_IfNullRow 22 /* jump, synopsis: if P1.nullRow then r[P3]=NULL, goto P2 */ -#define OP_SeekLT 23 /* jump, synopsis: key=r[P3@P4] */ -#define OP_SeekLE 24 /* jump, synopsis: key=r[P3@P4] */ -#define OP_SeekGE 25 /* jump, synopsis: key=r[P3@P4] */ -#define OP_SeekGT 26 /* jump, synopsis: key=r[P3@P4] */ -#define OP_IfNotOpen 27 /* jump, synopsis: if( !csr[P1] ) goto P2 */ -#define OP_IfNoHope 28 /* jump, synopsis: key=r[P3@P4] */ -#define OP_NoConflict 29 /* jump, synopsis: key=r[P3@P4] */ -#define OP_NotFound 30 /* jump, synopsis: key=r[P3@P4] */ -#define OP_Found 31 /* jump, synopsis: key=r[P3@P4] */ -#define OP_SeekRowid 32 /* jump, synopsis: intkey=r[P3] */ -#define OP_NotExists 33 /* jump, synopsis: intkey=r[P3] */ -#define OP_Last 34 /* jump */ -#define OP_IfSmaller 35 /* jump */ -#define OP_SorterSort 36 /* jump */ -#define OP_Sort 37 /* jump */ -#define OP_Rewind 38 /* jump */ -#define OP_IdxLE 39 /* jump, synopsis: key=r[P3@P4] */ -#define OP_IdxGT 40 /* jump, synopsis: key=r[P3@P4] */ -#define OP_IdxLT 41 /* jump, synopsis: key=r[P3@P4] */ -#define OP_IdxGE 42 /* jump, synopsis: key=r[P3@P4] */ +#define OP_IfNullRow 20 /* jump, synopsis: if P1.nullRow then r[P3]=NULL, goto P2 */ +#define OP_SeekLT 21 /* jump, synopsis: key=r[P3@P4] */ +#define OP_SeekLE 22 /* jump, synopsis: key=r[P3@P4] */ +#define OP_SeekGE 23 /* jump, synopsis: key=r[P3@P4] */ +#define OP_SeekGT 24 /* jump, synopsis: key=r[P3@P4] */ +#define OP_IfNotOpen 25 /* jump, synopsis: if( !csr[P1] ) goto P2 */ +#define OP_IfNoHope 26 /* jump, synopsis: key=r[P3@P4] */ +#define OP_NoConflict 27 /* jump, synopsis: key=r[P3@P4] */ +#define OP_NotFound 28 /* jump, synopsis: key=r[P3@P4] */ +#define OP_Found 29 /* jump, synopsis: key=r[P3@P4] */ +#define OP_SeekRowid 30 /* jump, synopsis: intkey=r[P3] */ +#define OP_NotExists 31 /* jump, synopsis: intkey=r[P3] */ +#define OP_Last 32 /* jump */ +#define OP_IfSmaller 33 /* jump */ +#define OP_SorterSort 34 /* jump */ +#define OP_Sort 35 /* jump */ +#define OP_Rewind 36 /* jump */ +#define OP_SorterNext 37 /* jump */ +#define OP_Prev 38 /* jump */ +#define OP_Next 39 /* jump */ +#define OP_IdxLE 40 /* jump, synopsis: key=r[P3@P4] */ +#define OP_IdxGT 41 /* jump, synopsis: key=r[P3@P4] */ +#define OP_IdxLT 42 /* jump, synopsis: key=r[P3@P4] */ #define OP_Or 43 /* same as TK_OR, synopsis: r[P3]=(r[P1] || r[P2]) */ #define OP_And 44 /* same as TK_AND, synopsis: r[P3]=(r[P1] && r[P2]) */ -#define OP_RowSetRead 45 /* jump, synopsis: r[P3]=rowset(P1) */ -#define OP_RowSetTest 46 /* jump, synopsis: if r[P3] in rowset(P1) goto P2 */ -#define OP_Program 47 /* jump */ -#define OP_FkIfZero 48 /* jump, synopsis: if fkctr[P1]==0 goto P2 */ -#define OP_IfPos 49 /* jump, synopsis: if r[P1]>0 then r[P1]-=P3, goto P2 */ +#define OP_IdxGE 45 /* jump, synopsis: key=r[P3@P4] */ +#define OP_RowSetRead 46 /* jump, synopsis: r[P3]=rowset(P1) */ +#define OP_RowSetTest 47 /* jump, synopsis: if r[P3] in rowset(P1) goto P2 */ +#define OP_Program 48 /* jump */ +#define OP_FkIfZero 49 /* jump, synopsis: if fkctr[P1]==0 goto P2 */ #define OP_IsNull 50 /* jump, same as TK_ISNULL, synopsis: if r[P1]==NULL goto P2 */ #define OP_NotNull 51 /* jump, same as TK_NOTNULL, synopsis: if r[P1]!=NULL goto P2 */ #define OP_Ne 52 /* jump, same as TK_NE, synopsis: IF r[P3]!=r[P1] */ @@ -15565,12 +16597,12 @@ typedef struct VdbeOpList VdbeOpList; #define OP_Lt 56 /* jump, same as TK_LT, synopsis: IF r[P3]<r[P1] */ #define OP_Ge 57 /* jump, same as TK_GE, synopsis: IF r[P3]>=r[P1] */ #define OP_ElseEq 58 /* jump, same as TK_ESCAPE */ -#define OP_IfNotZero 59 /* jump, synopsis: if r[P1]!=0 then r[P1]--, goto P2 */ -#define OP_DecrJumpZero 60 /* jump, synopsis: if (--r[P1])==0 goto P2 */ -#define OP_IncrVacuum 61 /* jump */ -#define OP_VNext 62 /* jump */ -#define OP_Filter 63 /* jump, synopsis: if key(P3@P4) not in filter(P1) goto P2 */ -#define OP_Init 64 /* jump, synopsis: Start at P2 */ +#define OP_IfPos 59 /* jump, synopsis: if r[P1]>0 then r[P1]-=P3, goto P2 */ +#define OP_IfNotZero 60 /* jump, synopsis: if r[P1]!=0 then r[P1]--, goto P2 */ +#define OP_DecrJumpZero 61 /* jump, synopsis: if (--r[P1])==0 goto P2 */ +#define OP_IncrVacuum 62 /* jump */ +#define OP_VNext 63 /* jump */ +#define OP_Filter 64 /* jump, synopsis: if key(P3@P4) not in filter(P1) goto P2 */ #define OP_PureFunc 65 /* synopsis: r[P3]=func(r[P2@NP]) */ #define OP_Function 66 /* synopsis: r[P3]=func(r[P2@NP]) */ #define OP_Return 67 @@ -15580,34 +16612,34 @@ typedef struct VdbeOpList VdbeOpList; #define OP_Integer 71 /* synopsis: r[P2]=P1 */ #define OP_Int64 72 /* synopsis: r[P2]=P4 */ #define OP_String 73 /* synopsis: r[P2]='P4' (len=P1) */ -#define OP_Null 74 /* synopsis: r[P2..P3]=NULL */ -#define OP_SoftNull 75 /* synopsis: r[P1]=NULL */ -#define OP_Blob 76 /* synopsis: r[P2]=P4 (len=P1) */ -#define OP_Variable 77 /* synopsis: r[P2]=parameter(P1,P4) */ -#define OP_Move 78 /* synopsis: r[P2@P3]=r[P1@P3] */ -#define OP_Copy 79 /* synopsis: r[P2@P3+1]=r[P1@P3+1] */ -#define OP_SCopy 80 /* synopsis: r[P2]=r[P1] */ -#define OP_IntCopy 81 /* synopsis: r[P2]=r[P1] */ -#define OP_FkCheck 82 -#define OP_ResultRow 83 /* synopsis: output=r[P1@P2] */ -#define OP_CollSeq 84 -#define OP_AddImm 85 /* synopsis: r[P1]=r[P1]+P2 */ -#define OP_RealAffinity 86 -#define OP_Cast 87 /* synopsis: affinity(r[P1]) */ -#define OP_Permutation 88 -#define OP_Compare 89 /* synopsis: r[P1@P3] <-> r[P2@P3] */ -#define OP_IsTrue 90 /* synopsis: r[P2] = coalesce(r[P1]==TRUE,P3) ^ P4 */ -#define OP_ZeroOrNull 91 /* synopsis: r[P2] = 0 OR NULL */ -#define OP_Offset 92 /* synopsis: r[P3] = sqlite_offset(P1) */ -#define OP_Column 93 /* synopsis: r[P3]=PX */ -#define OP_TypeCheck 94 /* synopsis: typecheck(r[P1@P2]) */ -#define OP_Affinity 95 /* synopsis: affinity(r[P1@P2]) */ -#define OP_MakeRecord 96 /* synopsis: r[P3]=mkrec(r[P1@P2]) */ -#define OP_Count 97 /* synopsis: r[P2]=count() */ -#define OP_ReadCookie 98 -#define OP_SetCookie 99 -#define OP_ReopenIdx 100 /* synopsis: root=P2 iDb=P3 */ -#define OP_OpenRead 101 /* synopsis: root=P2 iDb=P3 */ +#define OP_BeginSubrtn 74 /* synopsis: r[P2]=NULL */ +#define OP_Null 75 /* synopsis: r[P2..P3]=NULL */ +#define OP_SoftNull 76 /* synopsis: r[P1]=NULL */ +#define OP_Blob 77 /* synopsis: r[P2]=P4 (len=P1) */ +#define OP_Variable 78 /* synopsis: r[P2]=parameter(P1,P4) */ +#define OP_Move 79 /* synopsis: r[P2@P3]=r[P1@P3] */ +#define OP_Copy 80 /* synopsis: r[P2@P3+1]=r[P1@P3+1] */ +#define OP_SCopy 81 /* synopsis: r[P2]=r[P1] */ +#define OP_IntCopy 82 /* synopsis: r[P2]=r[P1] */ +#define OP_FkCheck 83 +#define OP_ResultRow 84 /* synopsis: output=r[P1@P2] */ +#define OP_CollSeq 85 +#define OP_AddImm 86 /* synopsis: r[P1]=r[P1]+P2 */ +#define OP_RealAffinity 87 +#define OP_Cast 88 /* synopsis: affinity(r[P1]) */ +#define OP_Permutation 89 +#define OP_Compare 90 /* synopsis: r[P1@P3] <-> r[P2@P3] */ +#define OP_IsTrue 91 /* synopsis: r[P2] = coalesce(r[P1]==TRUE,P3) ^ P4 */ +#define OP_ZeroOrNull 92 /* synopsis: r[P2] = 0 OR NULL */ +#define OP_Offset 93 /* synopsis: r[P3] = sqlite_offset(P1) */ +#define OP_Column 94 /* synopsis: r[P3]=PX cursor P1 column P2 */ +#define OP_TypeCheck 95 /* synopsis: typecheck(r[P1@P2]) */ +#define OP_Affinity 96 /* synopsis: affinity(r[P1@P2]) */ +#define OP_MakeRecord 97 /* synopsis: r[P3]=mkrec(r[P1@P2]) */ +#define OP_Count 98 /* synopsis: r[P2]=count() */ +#define OP_ReadCookie 99 +#define OP_SetCookie 100 +#define OP_ReopenIdx 101 /* synopsis: root=P2 iDb=P3 */ #define OP_BitAnd 102 /* same as TK_BITAND, synopsis: r[P3]=r[P1]&r[P2] */ #define OP_BitOr 103 /* same as TK_BITOR, synopsis: r[P3]=r[P1]|r[P2] */ #define OP_ShiftLeft 104 /* same as TK_LSHIFT, synopsis: r[P3]=r[P2]<<r[P1] */ @@ -15618,79 +16650,84 @@ typedef struct VdbeOpList VdbeOpList; #define OP_Divide 109 /* same as TK_SLASH, synopsis: r[P3]=r[P2]/r[P1] */ #define OP_Remainder 110 /* same as TK_REM, synopsis: r[P3]=r[P2]%r[P1] */ #define OP_Concat 111 /* same as TK_CONCAT, synopsis: r[P3]=r[P2]+r[P1] */ -#define OP_OpenWrite 112 /* synopsis: root=P2 iDb=P3 */ -#define OP_OpenDup 113 +#define OP_OpenRead 112 /* synopsis: root=P2 iDb=P3 */ +#define OP_OpenWrite 113 /* synopsis: root=P2 iDb=P3 */ #define OP_BitNot 114 /* same as TK_BITNOT, synopsis: r[P2]= ~r[P1] */ -#define OP_OpenAutoindex 115 /* synopsis: nColumn=P2 */ -#define OP_OpenEphemeral 116 /* synopsis: nColumn=P2 */ +#define OP_OpenDup 115 +#define OP_OpenAutoindex 116 /* synopsis: nColumn=P2 */ #define OP_String8 117 /* same as TK_STRING, synopsis: r[P2]='P4' */ -#define OP_SorterOpen 118 -#define OP_SequenceTest 119 /* synopsis: if( cursor[P1].ctr++ ) pc = P2 */ -#define OP_OpenPseudo 120 /* synopsis: P3 columns in r[P2] */ -#define OP_Close 121 -#define OP_ColumnsUsed 122 -#define OP_SeekScan 123 /* synopsis: Scan-ahead up to P1 rows */ -#define OP_SeekHit 124 /* synopsis: set P2<=seekHit<=P3 */ -#define OP_Sequence 125 /* synopsis: r[P2]=cursor[P1].ctr++ */ -#define OP_NewRowid 126 /* synopsis: r[P2]=rowid */ -#define OP_Insert 127 /* synopsis: intkey=r[P3] data=r[P2] */ -#define OP_RowCell 128 -#define OP_Delete 129 -#define OP_ResetCount 130 -#define OP_SorterCompare 131 /* synopsis: if key(P1)!=trim(r[P3],P4) goto P2 */ -#define OP_SorterData 132 /* synopsis: r[P2]=data */ -#define OP_RowData 133 /* synopsis: r[P2]=data */ -#define OP_Rowid 134 /* synopsis: r[P2]=rowid */ -#define OP_NullRow 135 -#define OP_SeekEnd 136 -#define OP_IdxInsert 137 /* synopsis: key=r[P2] */ -#define OP_SorterInsert 138 /* synopsis: key=r[P2] */ -#define OP_IdxDelete 139 /* synopsis: key=r[P2@P3] */ -#define OP_DeferredSeek 140 /* synopsis: Move P3 to P1.rowid if needed */ -#define OP_IdxRowid 141 /* synopsis: r[P2]=rowid */ -#define OP_FinishSeek 142 -#define OP_Destroy 143 -#define OP_Clear 144 -#define OP_ResetSorter 145 -#define OP_CreateBtree 146 /* synopsis: r[P2]=root iDb=P1 flags=P3 */ -#define OP_SqlExec 147 -#define OP_ParseSchema 148 -#define OP_LoadAnalysis 149 -#define OP_DropTable 150 -#define OP_DropIndex 151 -#define OP_DropTrigger 152 +#define OP_OpenEphemeral 118 /* synopsis: nColumn=P2 */ +#define OP_SorterOpen 119 +#define OP_SequenceTest 120 /* synopsis: if( cursor[P1].ctr++ ) pc = P2 */ +#define OP_OpenPseudo 121 /* synopsis: P3 columns in r[P2] */ +#define OP_Close 122 +#define OP_ColumnsUsed 123 +#define OP_SeekScan 124 /* synopsis: Scan-ahead up to P1 rows */ +#define OP_SeekHit 125 /* synopsis: set P2<=seekHit<=P3 */ +#define OP_Sequence 126 /* synopsis: r[P2]=cursor[P1].ctr++ */ +#define OP_NewRowid 127 /* synopsis: r[P2]=rowid */ +#define OP_Insert 128 /* synopsis: intkey=r[P3] data=r[P2] */ +#define OP_RowCell 129 +#define OP_Delete 130 +#define OP_ResetCount 131 +#define OP_SorterCompare 132 /* synopsis: if key(P1)!=trim(r[P3],P4) goto P2 */ +#define OP_SorterData 133 /* synopsis: r[P2]=data */ +#define OP_RowData 134 /* synopsis: r[P2]=data */ +#define OP_Rowid 135 /* synopsis: r[P2]=PX rowid of P1 */ +#define OP_NullRow 136 +#define OP_SeekEnd 137 +#define OP_IdxInsert 138 /* synopsis: key=r[P2] */ +#define OP_SorterInsert 139 /* synopsis: key=r[P2] */ +#define OP_IdxDelete 140 /* synopsis: key=r[P2@P3] */ +#define OP_DeferredSeek 141 /* synopsis: Move P3 to P1.rowid if needed */ +#define OP_IdxRowid 142 /* synopsis: r[P2]=rowid */ +#define OP_FinishSeek 143 +#define OP_Destroy 144 +#define OP_Clear 145 +#define OP_ResetSorter 146 +#define OP_CreateBtree 147 /* synopsis: r[P2]=root iDb=P1 flags=P3 */ +#define OP_SqlExec 148 +#define OP_ParseSchema 149 +#define OP_LoadAnalysis 150 +#define OP_DropTable 151 +#define OP_DropIndex 152 #define OP_Real 153 /* same as TK_FLOAT, synopsis: r[P2]=P4 */ -#define OP_IntegrityCk 154 -#define OP_RowSetAdd 155 /* synopsis: rowset(P1)=r[P2] */ -#define OP_Param 156 -#define OP_FkCounter 157 /* synopsis: fkctr[P1]+=P2 */ -#define OP_MemMax 158 /* synopsis: r[P1]=max(r[P1],r[P2]) */ -#define OP_OffsetLimit 159 /* synopsis: if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1) */ -#define OP_AggInverse 160 /* synopsis: accum=r[P3] inverse(r[P2@P5]) */ -#define OP_AggStep 161 /* synopsis: accum=r[P3] step(r[P2@P5]) */ -#define OP_AggStep1 162 /* synopsis: accum=r[P3] step(r[P2@P5]) */ -#define OP_AggValue 163 /* synopsis: r[P3]=value N=P2 */ -#define OP_AggFinal 164 /* synopsis: accum=r[P1] N=P2 */ -#define OP_Expire 165 -#define OP_CursorLock 166 -#define OP_CursorUnlock 167 -#define OP_TableLock 168 /* synopsis: iDb=P1 root=P2 write=P3 */ -#define OP_VBegin 169 -#define OP_VCreate 170 -#define OP_VDestroy 171 -#define OP_VOpen 172 -#define OP_VInitIn 173 /* synopsis: r[P2]=ValueList(P1,P3) */ -#define OP_VColumn 174 /* synopsis: r[P3]=vcolumn(P2) */ -#define OP_VRename 175 -#define OP_Pagecount 176 -#define OP_MaxPgcnt 177 -#define OP_FilterAdd 178 /* synopsis: filter(P1) += key(P3@P4) */ -#define OP_Trace 179 -#define OP_CursorHint 180 -#define OP_ReleaseReg 181 /* synopsis: release r[P1@P2] mask P3 */ -#define OP_Noop 182 -#define OP_Explain 183 -#define OP_Abortable 184 +#define OP_DropTrigger 154 +#define OP_IntegrityCk 155 +#define OP_RowSetAdd 156 /* synopsis: rowset(P1)=r[P2] */ +#define OP_Param 157 +#define OP_FkCounter 158 /* synopsis: fkctr[P1]+=P2 */ +#define OP_MemMax 159 /* synopsis: r[P1]=max(r[P1],r[P2]) */ +#define OP_OffsetLimit 160 /* synopsis: if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1) */ +#define OP_AggInverse 161 /* synopsis: accum=r[P3] inverse(r[P2@P5]) */ +#define OP_AggStep 162 /* synopsis: accum=r[P3] step(r[P2@P5]) */ +#define OP_AggStep1 163 /* synopsis: accum=r[P3] step(r[P2@P5]) */ +#define OP_AggValue 164 /* synopsis: r[P3]=value N=P2 */ +#define OP_AggFinal 165 /* synopsis: accum=r[P1] N=P2 */ +#define OP_Expire 166 +#define OP_CursorLock 167 +#define OP_CursorUnlock 168 +#define OP_TableLock 169 /* synopsis: iDb=P1 root=P2 write=P3 */ +#define OP_VBegin 170 +#define OP_VCreate 171 +#define OP_VDestroy 172 +#define OP_VOpen 173 +#define OP_VCheck 174 +#define OP_VInitIn 175 /* synopsis: r[P2]=ValueList(P1,P3) */ +#define OP_VColumn 176 /* synopsis: r[P3]=vcolumn(P2) */ +#define OP_VRename 177 +#define OP_Pagecount 178 +#define OP_MaxPgcnt 179 +#define OP_ClrSubtype 180 /* synopsis: r[P1].subtype = 0 */ +#define OP_GetSubtype 181 /* synopsis: r[P2] = r[P1].subtype */ +#define OP_SetSubtype 182 /* synopsis: r[P2].subtype = r[P1] */ +#define OP_FilterAdd 183 /* synopsis: filter(P1) += key(P3@P4) */ +#define OP_Trace 184 +#define OP_CursorHint 185 +#define OP_ReleaseReg 186 /* synopsis: release r[P1@P2] mask P3 */ +#define OP_Noop 187 +#define OP_Explain 188 +#define OP_Abortable 189 /* Properties such as "out2" or "jump" that are specified in ** comments following the "case" for each opcode in the vdbe.c @@ -15702,31 +16739,32 @@ typedef struct VdbeOpList VdbeOpList; #define OPFLG_IN3 0x08 /* in3: P3 is an input */ #define OPFLG_OUT2 0x10 /* out2: P2 is an output */ #define OPFLG_OUT3 0x20 /* out3: P3 is an output */ +#define OPFLG_NCYCLE 0x40 /* ncycle:Cycles count against P1 */ #define OPFLG_INITIALIZER {\ -/* 0 */ 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x00, 0x10,\ -/* 8 */ 0x00, 0x01, 0x00, 0x01, 0x01, 0x01, 0x03, 0x03,\ -/* 16 */ 0x01, 0x01, 0x03, 0x12, 0x03, 0x03, 0x01, 0x09,\ -/* 24 */ 0x09, 0x09, 0x09, 0x01, 0x09, 0x09, 0x09, 0x09,\ -/* 32 */ 0x09, 0x09, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,\ -/* 40 */ 0x01, 0x01, 0x01, 0x26, 0x26, 0x23, 0x0b, 0x01,\ -/* 48 */ 0x01, 0x03, 0x03, 0x03, 0x0b, 0x0b, 0x0b, 0x0b,\ -/* 56 */ 0x0b, 0x0b, 0x01, 0x03, 0x03, 0x01, 0x01, 0x01,\ +/* 0 */ 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x41, 0x00,\ +/* 8 */ 0x01, 0x01, 0x01, 0x01, 0x03, 0x03, 0x01, 0x01,\ +/* 16 */ 0x03, 0x03, 0x01, 0x12, 0x01, 0x49, 0x49, 0x49,\ +/* 24 */ 0x49, 0x01, 0x49, 0x49, 0x49, 0x49, 0x49, 0x49,\ +/* 32 */ 0x41, 0x01, 0x41, 0x41, 0x41, 0x01, 0x41, 0x41,\ +/* 40 */ 0x41, 0x41, 0x41, 0x26, 0x26, 0x41, 0x23, 0x0b,\ +/* 48 */ 0x01, 0x01, 0x03, 0x03, 0x0b, 0x0b, 0x0b, 0x0b,\ +/* 56 */ 0x0b, 0x0b, 0x01, 0x03, 0x03, 0x03, 0x01, 0x41,\ /* 64 */ 0x01, 0x00, 0x00, 0x02, 0x02, 0x08, 0x00, 0x10,\ -/* 72 */ 0x10, 0x10, 0x10, 0x00, 0x10, 0x10, 0x00, 0x00,\ -/* 80 */ 0x10, 0x10, 0x00, 0x00, 0x00, 0x02, 0x02, 0x02,\ -/* 88 */ 0x00, 0x00, 0x12, 0x1e, 0x20, 0x00, 0x00, 0x00,\ -/* 96 */ 0x00, 0x10, 0x10, 0x00, 0x00, 0x00, 0x26, 0x26,\ +/* 72 */ 0x10, 0x10, 0x00, 0x10, 0x00, 0x10, 0x10, 0x00,\ +/* 80 */ 0x00, 0x10, 0x10, 0x00, 0x00, 0x00, 0x02, 0x02,\ +/* 88 */ 0x02, 0x00, 0x00, 0x12, 0x1e, 0x20, 0x40, 0x00,\ +/* 96 */ 0x00, 0x00, 0x10, 0x10, 0x00, 0x40, 0x26, 0x26,\ /* 104 */ 0x26, 0x26, 0x26, 0x26, 0x26, 0x26, 0x26, 0x26,\ -/* 112 */ 0x00, 0x00, 0x12, 0x00, 0x00, 0x10, 0x00, 0x00,\ -/* 120 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00,\ -/* 128 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,\ -/* 136 */ 0x00, 0x04, 0x04, 0x00, 0x00, 0x10, 0x00, 0x10,\ -/* 144 */ 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,\ -/* 152 */ 0x00, 0x10, 0x00, 0x06, 0x10, 0x00, 0x04, 0x1a,\ -/* 160 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\ -/* 168 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,\ -/* 176 */ 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\ -/* 184 */ 0x00,} +/* 112 */ 0x40, 0x00, 0x12, 0x40, 0x40, 0x10, 0x40, 0x00,\ +/* 120 */ 0x00, 0x00, 0x40, 0x00, 0x40, 0x40, 0x10, 0x10,\ +/* 128 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x50,\ +/* 136 */ 0x00, 0x40, 0x04, 0x04, 0x00, 0x40, 0x50, 0x40,\ +/* 144 */ 0x10, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00,\ +/* 152 */ 0x00, 0x10, 0x00, 0x00, 0x06, 0x10, 0x00, 0x04,\ +/* 160 */ 0x1a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\ +/* 168 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x10, 0x50,\ +/* 176 */ 0x40, 0x00, 0x10, 0x10, 0x02, 0x12, 0x12, 0x00,\ +/* 184 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,} /* The resolve3P2Values() routine is able to run faster if it knows ** the value of the largest JUMP opcode. The smaller the maximum @@ -15772,19 +16810,27 @@ SQLITE_PRIVATE void sqlite3VdbeVerifyNoResultRow(Vdbe *p); #endif #if defined(SQLITE_DEBUG) SQLITE_PRIVATE void sqlite3VdbeVerifyAbortable(Vdbe *p, int); +SQLITE_PRIVATE void sqlite3VdbeNoJumpsOutsideSubrtn(Vdbe*,int,int,int); #else # define sqlite3VdbeVerifyAbortable(A,B) +# define sqlite3VdbeNoJumpsOutsideSubrtn(A,B,C,D) #endif SQLITE_PRIVATE VdbeOp *sqlite3VdbeAddOpList(Vdbe*, int nOp, VdbeOpList const *aOp,int iLineno); #ifndef SQLITE_OMIT_EXPLAIN -SQLITE_PRIVATE void sqlite3VdbeExplain(Parse*,u8,const char*,...); +SQLITE_PRIVATE int sqlite3VdbeExplain(Parse*,u8,const char*,...); SQLITE_PRIVATE void sqlite3VdbeExplainPop(Parse*); SQLITE_PRIVATE int sqlite3VdbeExplainParent(Parse*); # define ExplainQueryPlan(P) sqlite3VdbeExplain P +# ifdef SQLITE_ENABLE_STMT_SCANSTATUS +# define ExplainQueryPlan2(V,P) (V = sqlite3VdbeExplain P) +# else +# define ExplainQueryPlan2(V,P) ExplainQueryPlan(P) +# endif # define ExplainQueryPlanPop(P) sqlite3VdbeExplainPop(P) # define ExplainQueryPlanParent(P) sqlite3VdbeExplainParent(P) #else # define ExplainQueryPlan(P) +# define ExplainQueryPlan2(V,P) # define ExplainQueryPlanPop(P) # define ExplainQueryPlanParent(P) 0 # define sqlite3ExplainBreakpoint(A,B) /*no-op*/ @@ -15800,6 +16846,7 @@ SQLITE_PRIVATE void sqlite3VdbeChangeP1(Vdbe*, int addr, int P1); SQLITE_PRIVATE void sqlite3VdbeChangeP2(Vdbe*, int addr, int P2); SQLITE_PRIVATE void sqlite3VdbeChangeP3(Vdbe*, int addr, int P3); SQLITE_PRIVATE void sqlite3VdbeChangeP5(Vdbe*, u16 P5); +SQLITE_PRIVATE void sqlite3VdbeTypeofColumn(Vdbe*, int); SQLITE_PRIVATE void sqlite3VdbeJumpHere(Vdbe*, int addr); SQLITE_PRIVATE void sqlite3VdbeJumpHereOrPopInst(Vdbe*, int addr); SQLITE_PRIVATE int sqlite3VdbeChangeToNoop(Vdbe*, int addr); @@ -15814,11 +16861,11 @@ SQLITE_PRIVATE void sqlite3VdbeAppendP4(Vdbe*, void *pP4, int p4type); SQLITE_PRIVATE void sqlite3VdbeSetP4KeyInfo(Parse*, Index*); SQLITE_PRIVATE void sqlite3VdbeUsesBtree(Vdbe*, int); SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetOp(Vdbe*, int); +SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetLastOp(Vdbe*); SQLITE_PRIVATE int sqlite3VdbeMakeLabel(Parse*); SQLITE_PRIVATE void sqlite3VdbeRunOnlyOnce(Vdbe*); SQLITE_PRIVATE void sqlite3VdbeReusable(Vdbe*); SQLITE_PRIVATE void sqlite3VdbeDelete(Vdbe*); -SQLITE_PRIVATE void sqlite3VdbeClearObject(sqlite3*,Vdbe*); SQLITE_PRIVATE void sqlite3VdbeMakeReady(Vdbe*,Parse*); SQLITE_PRIVATE int sqlite3VdbeFinalize(Vdbe*); SQLITE_PRIVATE void sqlite3VdbeResolveLabel(Vdbe*, int); @@ -15892,7 +16939,7 @@ SQLITE_PRIVATE void sqlite3VdbeNoopComment(Vdbe*, const char*, ...); ** The VdbeCoverage macros are used to set a coverage testing point ** for VDBE branch instructions. The coverage testing points are line ** numbers in the sqlite3.c source file. VDBE branch coverage testing -** only works with an amalagmation build. That's ok since a VDBE branch +** only works with an amalgamation build. That's ok since a VDBE branch ** coverage build designed for testing the test suite only. No application ** should ever ship with VDBE branch coverage measuring turned on. ** @@ -15910,7 +16957,7 @@ SQLITE_PRIVATE void sqlite3VdbeNoopComment(Vdbe*, const char*, ...); ** // NULL option is not possible ** ** VdbeCoverageEqNe(v) // Previous OP_Jump is only interested -** // in distingishing equal and not-equal. +** // in distinguishing equal and not-equal. ** ** Every VDBE branch operation must be tagged with one of the macros above. ** If not, then when "make test" is run with -DSQLITE_VDBE_COVERAGE and @@ -15920,7 +16967,7 @@ SQLITE_PRIVATE void sqlite3VdbeNoopComment(Vdbe*, const char*, ...); ** During testing, the test application will invoke ** sqlite3_test_control(SQLITE_TESTCTRL_VDBE_COVERAGE,...) to set a callback ** routine that is invoked as each bytecode branch is taken. The callback -** contains the sqlite3.c source line number ov the VdbeCoverage macro and +** contains the sqlite3.c source line number of the VdbeCoverage macro and ** flags to indicate whether or not the branch was taken. The test application ** is responsible for keeping track of this and reporting byte-code branches ** that are never taken. @@ -15956,14 +17003,22 @@ SQLITE_PRIVATE void sqlite3VdbeSetLineNumber(Vdbe*,int); #ifdef SQLITE_ENABLE_STMT_SCANSTATUS SQLITE_PRIVATE void sqlite3VdbeScanStatus(Vdbe*, int, int, int, LogEst, const char*); +SQLITE_PRIVATE void sqlite3VdbeScanStatusRange(Vdbe*, int, int, int); +SQLITE_PRIVATE void sqlite3VdbeScanStatusCounters(Vdbe*, int, int, int); #else -# define sqlite3VdbeScanStatus(a,b,c,d,e) +# define sqlite3VdbeScanStatus(a,b,c,d,e,f) +# define sqlite3VdbeScanStatusRange(a,b,c,d) +# define sqlite3VdbeScanStatusCounters(a,b,c,d) #endif #if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE) SQLITE_PRIVATE void sqlite3VdbePrintOp(FILE*, int, VdbeOp*); #endif +#if defined(SQLITE_ENABLE_CURSOR_HINTS) && defined(SQLITE_DEBUG) +SQLITE_PRIVATE int sqlite3CursorRangeHintExprCheck(Walker *pWalker, Expr *pExpr); +#endif + #endif /* SQLITE_VDBE_H */ /************** End of vdbe.h ************************************************/ @@ -16012,7 +17067,7 @@ struct PgHdr { ** private to pcache.c and should not be accessed by other modules. ** pCache is grouped with the public elements for efficiency. */ - i16 nRef; /* Number of users of this page */ + i64 nRef; /* Number of users of this page */ PgHdr *pDirtyNext; /* Next element in list of dirty pages */ PgHdr *pDirtyPrev; /* Previous element in list of dirty pages */ /* NB: pDirtyNext and pDirtyPrev are undefined if the @@ -16093,12 +17148,12 @@ SQLITE_PRIVATE void sqlite3PcacheClearSyncFlags(PCache *); SQLITE_PRIVATE void sqlite3PcacheClear(PCache*); /* Return the total number of outstanding page references */ -SQLITE_PRIVATE int sqlite3PcacheRefCount(PCache*); +SQLITE_PRIVATE i64 sqlite3PcacheRefCount(PCache*); /* Increment the reference count of an existing page */ SQLITE_PRIVATE void sqlite3PcacheRef(PgHdr*); -SQLITE_PRIVATE int sqlite3PcachePageRefcount(PgHdr*); +SQLITE_PRIVATE i64 sqlite3PcachePageRefcount(PgHdr*); /* Return the total number of pages stored in the cache */ SQLITE_PRIVATE int sqlite3PcachePagecount(PCache*); @@ -16163,290 +17218,6 @@ SQLITE_PRIVATE int sqlite3PCacheIsDirty(PCache *pCache); /************** End of pcache.h **********************************************/ /************** Continuing where we left off in sqliteInt.h ******************/ -/************** Include os.h in the middle of sqliteInt.h ********************/ -/************** Begin file os.h **********************************************/ -/* -** 2001 September 16 -** -** The author disclaims copyright to this source code. In place of -** a legal notice, here is a blessing: -** -** May you do good and not evil. -** May you find forgiveness for yourself and forgive others. -** May you share freely, never taking more than you give. -** -****************************************************************************** -** -** This header file (together with is companion C source-code file -** "os.c") attempt to abstract the underlying operating system so that -** the SQLite library will work on both POSIX and windows systems. -** -** This header file is #include-ed by sqliteInt.h and thus ends up -** being included by every source file. -*/ -#ifndef _SQLITE_OS_H_ -#define _SQLITE_OS_H_ - -/* -** Attempt to automatically detect the operating system and setup the -** necessary pre-processor macros for it. -*/ -/************** Include os_setup.h in the middle of os.h *********************/ -/************** Begin file os_setup.h ****************************************/ -/* -** 2013 November 25 -** -** The author disclaims copyright to this source code. In place of -** a legal notice, here is a blessing: -** -** May you do good and not evil. -** May you find forgiveness for yourself and forgive others. -** May you share freely, never taking more than you give. -** -****************************************************************************** -** -** This file contains pre-processor directives related to operating system -** detection and/or setup. -*/ -#ifndef SQLITE_OS_SETUP_H -#define SQLITE_OS_SETUP_H - -/* -** Figure out if we are dealing with Unix, Windows, or some other operating -** system. -** -** After the following block of preprocess macros, all of SQLITE_OS_UNIX, -** SQLITE_OS_WIN, and SQLITE_OS_OTHER will defined to either 1 or 0. One of -** the three will be 1. The other two will be 0. -*/ -#if defined(SQLITE_OS_OTHER) -# if SQLITE_OS_OTHER==1 -# undef SQLITE_OS_UNIX -# define SQLITE_OS_UNIX 0 -# undef SQLITE_OS_WIN -# define SQLITE_OS_WIN 0 -# else -# undef SQLITE_OS_OTHER -# endif -#endif -#if !defined(SQLITE_OS_UNIX) && !defined(SQLITE_OS_OTHER) -# define SQLITE_OS_OTHER 0 -# ifndef SQLITE_OS_WIN -# if defined(_WIN32) || defined(WIN32) || defined(__CYGWIN__) || \ - defined(__MINGW32__) || defined(__BORLANDC__) -# define SQLITE_OS_WIN 1 -# define SQLITE_OS_UNIX 0 -# else -# define SQLITE_OS_WIN 0 -# define SQLITE_OS_UNIX 1 -# endif -# else -# define SQLITE_OS_UNIX 0 -# endif -#else -# ifndef SQLITE_OS_WIN -# define SQLITE_OS_WIN 0 -# endif -#endif - -#endif /* SQLITE_OS_SETUP_H */ - -/************** End of os_setup.h ********************************************/ -/************** Continuing where we left off in os.h *************************/ - -/* If the SET_FULLSYNC macro is not defined above, then make it -** a no-op -*/ -#ifndef SET_FULLSYNC -# define SET_FULLSYNC(x,y) -#endif - -/* Maximum pathname length. Note: FILENAME_MAX defined by stdio.h -*/ -#ifndef SQLITE_MAX_PATHLEN -# define SQLITE_MAX_PATHLEN FILENAME_MAX -#endif - -/* -** The default size of a disk sector -*/ -#ifndef SQLITE_DEFAULT_SECTOR_SIZE -# define SQLITE_DEFAULT_SECTOR_SIZE 4096 -#endif - -/* -** Temporary files are named starting with this prefix followed by 16 random -** alphanumeric characters, and no file extension. They are stored in the -** OS's standard temporary file directory, and are deleted prior to exit. -** If sqlite is being embedded in another program, you may wish to change the -** prefix to reflect your program's name, so that if your program exits -** prematurely, old temporary files can be easily identified. This can be done -** using -DSQLITE_TEMP_FILE_PREFIX=myprefix_ on the compiler command line. -** -** 2006-10-31: The default prefix used to be "sqlite_". But then -** Mcafee started using SQLite in their anti-virus product and it -** started putting files with the "sqlite" name in the c:/temp folder. -** This annoyed many windows users. Those users would then do a -** Google search for "sqlite", find the telephone numbers of the -** developers and call to wake them up at night and complain. -** For this reason, the default name prefix is changed to be "sqlite" -** spelled backwards. So the temp files are still identified, but -** anybody smart enough to figure out the code is also likely smart -** enough to know that calling the developer will not help get rid -** of the file. -*/ -#ifndef SQLITE_TEMP_FILE_PREFIX -# define SQLITE_TEMP_FILE_PREFIX "etilqs_" -#endif - -/* -** The following values may be passed as the second argument to -** sqlite3OsLock(). The various locks exhibit the following semantics: -** -** SHARED: Any number of processes may hold a SHARED lock simultaneously. -** RESERVED: A single process may hold a RESERVED lock on a file at -** any time. Other processes may hold and obtain new SHARED locks. -** PENDING: A single process may hold a PENDING lock on a file at -** any one time. Existing SHARED locks may persist, but no new -** SHARED locks may be obtained by other processes. -** EXCLUSIVE: An EXCLUSIVE lock precludes all other locks. -** -** PENDING_LOCK may not be passed directly to sqlite3OsLock(). Instead, a -** process that requests an EXCLUSIVE lock may actually obtain a PENDING -** lock. This can be upgraded to an EXCLUSIVE lock by a subsequent call to -** sqlite3OsLock(). -*/ -#define NO_LOCK 0 -#define SHARED_LOCK 1 -#define RESERVED_LOCK 2 -#define PENDING_LOCK 3 -#define EXCLUSIVE_LOCK 4 - -/* -** File Locking Notes: (Mostly about windows but also some info for Unix) -** -** We cannot use LockFileEx() or UnlockFileEx() on Win95/98/ME because -** those functions are not available. So we use only LockFile() and -** UnlockFile(). -** -** LockFile() prevents not just writing but also reading by other processes. -** A SHARED_LOCK is obtained by locking a single randomly-chosen -** byte out of a specific range of bytes. The lock byte is obtained at -** random so two separate readers can probably access the file at the -** same time, unless they are unlucky and choose the same lock byte. -** An EXCLUSIVE_LOCK is obtained by locking all bytes in the range. -** There can only be one writer. A RESERVED_LOCK is obtained by locking -** a single byte of the file that is designated as the reserved lock byte. -** A PENDING_LOCK is obtained by locking a designated byte different from -** the RESERVED_LOCK byte. -** -** On WinNT/2K/XP systems, LockFileEx() and UnlockFileEx() are available, -** which means we can use reader/writer locks. When reader/writer locks -** are used, the lock is placed on the same range of bytes that is used -** for probabilistic locking in Win95/98/ME. Hence, the locking scheme -** will support two or more Win95 readers or two or more WinNT readers. -** But a single Win95 reader will lock out all WinNT readers and a single -** WinNT reader will lock out all other Win95 readers. -** -** The following #defines specify the range of bytes used for locking. -** SHARED_SIZE is the number of bytes available in the pool from which -** a random byte is selected for a shared lock. The pool of bytes for -** shared locks begins at SHARED_FIRST. -** -** The same locking strategy and -** byte ranges are used for Unix. This leaves open the possibility of having -** clients on win95, winNT, and unix all talking to the same shared file -** and all locking correctly. To do so would require that samba (or whatever -** tool is being used for file sharing) implements locks correctly between -** windows and unix. I'm guessing that isn't likely to happen, but by -** using the same locking range we are at least open to the possibility. -** -** Locking in windows is manditory. For this reason, we cannot store -** actual data in the bytes used for locking. The pager never allocates -** the pages involved in locking therefore. SHARED_SIZE is selected so -** that all locks will fit on a single page even at the minimum page size. -** PENDING_BYTE defines the beginning of the locks. By default PENDING_BYTE -** is set high so that we don't have to allocate an unused page except -** for very large databases. But one should test the page skipping logic -** by setting PENDING_BYTE low and running the entire regression suite. -** -** Changing the value of PENDING_BYTE results in a subtly incompatible -** file format. Depending on how it is changed, you might not notice -** the incompatibility right away, even running a full regression test. -** The default location of PENDING_BYTE is the first byte past the -** 1GB boundary. -** -*/ -#ifdef SQLITE_OMIT_WSD -# define PENDING_BYTE (0x40000000) -#else -# define PENDING_BYTE sqlite3PendingByte -#endif -#define RESERVED_BYTE (PENDING_BYTE+1) -#define SHARED_FIRST (PENDING_BYTE+2) -#define SHARED_SIZE 510 - -/* -** Wrapper around OS specific sqlite3_os_init() function. -*/ -SQLITE_PRIVATE int sqlite3OsInit(void); - -/* -** Functions for accessing sqlite3_file methods -*/ -SQLITE_PRIVATE void sqlite3OsClose(sqlite3_file*); -SQLITE_PRIVATE int sqlite3OsRead(sqlite3_file*, void*, int amt, i64 offset); -SQLITE_PRIVATE int sqlite3OsWrite(sqlite3_file*, const void*, int amt, i64 offset); -SQLITE_PRIVATE int sqlite3OsTruncate(sqlite3_file*, i64 size); -SQLITE_PRIVATE int sqlite3OsSync(sqlite3_file*, int); -SQLITE_PRIVATE int sqlite3OsFileSize(sqlite3_file*, i64 *pSize); -SQLITE_PRIVATE int sqlite3OsLock(sqlite3_file*, int); -SQLITE_PRIVATE int sqlite3OsUnlock(sqlite3_file*, int); -SQLITE_PRIVATE int sqlite3OsCheckReservedLock(sqlite3_file *id, int *pResOut); -SQLITE_PRIVATE int sqlite3OsFileControl(sqlite3_file*,int,void*); -SQLITE_PRIVATE void sqlite3OsFileControlHint(sqlite3_file*,int,void*); -#define SQLITE_FCNTL_DB_UNCHANGED 0xca093fa0 -SQLITE_PRIVATE int sqlite3OsSectorSize(sqlite3_file *id); -SQLITE_PRIVATE int sqlite3OsDeviceCharacteristics(sqlite3_file *id); -#ifndef SQLITE_OMIT_WAL -SQLITE_PRIVATE int sqlite3OsShmMap(sqlite3_file *,int,int,int,void volatile **); -SQLITE_PRIVATE int sqlite3OsShmLock(sqlite3_file *id, int, int, int); -SQLITE_PRIVATE void sqlite3OsShmBarrier(sqlite3_file *id); -SQLITE_PRIVATE int sqlite3OsShmUnmap(sqlite3_file *id, int); -#endif /* SQLITE_OMIT_WAL */ -SQLITE_PRIVATE int sqlite3OsFetch(sqlite3_file *id, i64, int, void **); -SQLITE_PRIVATE int sqlite3OsUnfetch(sqlite3_file *, i64, void *); - - -/* -** Functions for accessing sqlite3_vfs methods -*/ -SQLITE_PRIVATE int sqlite3OsOpen(sqlite3_vfs *, const char *, sqlite3_file*, int, int *); -SQLITE_PRIVATE int sqlite3OsDelete(sqlite3_vfs *, const char *, int); -SQLITE_PRIVATE int sqlite3OsAccess(sqlite3_vfs *, const char *, int, int *pResOut); -SQLITE_PRIVATE int sqlite3OsFullPathname(sqlite3_vfs *, const char *, int, char *); -#ifndef SQLITE_OMIT_LOAD_EXTENSION -SQLITE_PRIVATE void *sqlite3OsDlOpen(sqlite3_vfs *, const char *); -SQLITE_PRIVATE void sqlite3OsDlError(sqlite3_vfs *, int, char *); -SQLITE_PRIVATE void (*sqlite3OsDlSym(sqlite3_vfs *, void *, const char *))(void); -SQLITE_PRIVATE void sqlite3OsDlClose(sqlite3_vfs *, void *); -#endif /* SQLITE_OMIT_LOAD_EXTENSION */ -SQLITE_PRIVATE int sqlite3OsRandomness(sqlite3_vfs *, int, char *); -SQLITE_PRIVATE int sqlite3OsSleep(sqlite3_vfs *, int); -SQLITE_PRIVATE int sqlite3OsGetLastError(sqlite3_vfs*); -SQLITE_PRIVATE int sqlite3OsCurrentTimeInt64(sqlite3_vfs *, sqlite3_int64*); - -/* -** Convenience functions for opening and closing files using -** sqlite3_malloc() to obtain space for the file-handle structure. -*/ -SQLITE_PRIVATE int sqlite3OsOpenMalloc(sqlite3_vfs *, const char *, sqlite3_file **, int,int*); -SQLITE_PRIVATE void sqlite3OsCloseFree(sqlite3_file *); - -#endif /* _SQLITE_OS_H_ */ - -/************** End of os.h **************************************************/ -/************** Continuing where we left off in sqliteInt.h ******************/ /************** Include mutex.h in the middle of sqliteInt.h *****************/ /************** Begin file mutex.h *******************************************/ /* @@ -16535,7 +17306,7 @@ SQLITE_API int sqlite3_mutex_held(sqlite3_mutex*); /* ** Default synchronous levels. ** -** Note that (for historcal reasons) the PAGER_SYNCHRONOUS_* macros differ +** Note that (for historical reasons) the PAGER_SYNCHRONOUS_* macros differ ** from the SQLITE_DEFAULT_SYNCHRONOUS value by 1. ** ** PAGER_SYNCHRONOUS DEFAULT_SYNCHRONOUS @@ -16574,7 +17345,7 @@ struct Db { ** An instance of the following structure stores a database schema. ** ** Most Schema objects are associated with a Btree. The exception is -** the Schema for the TEMP databaes (sqlite3.aDb[1]) which is free-standing. +** the Schema for the TEMP database (sqlite3.aDb[1]) which is free-standing. ** In shared cache mode, a single Schema object can be shared by multiple ** Btrees that refer to the same underlying BtShared object. ** @@ -16685,13 +17456,14 @@ struct Lookaside { LookasideSlot *pInit; /* List of buffers not previously used */ LookasideSlot *pFree; /* List of available buffers */ #ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE - LookasideSlot *pSmallInit; /* List of small buffers not prediously used */ + LookasideSlot *pSmallInit; /* List of small buffers not previously used */ LookasideSlot *pSmallFree; /* List of available small buffers */ void *pMiddle; /* First byte past end of full-size buffers and ** the first byte of LOOKASIDE_SMALL buffers */ #endif /* SQLITE_OMIT_TWOSIZE_LOOKASIDE */ void *pStart; /* First byte of available memory space */ void *pEnd; /* First byte past end of available space */ + void *pTrueEnd; /* True value of pEnd, when db->pnBytesFreed!=0 */ }; struct LookasideSlot { LookasideSlot *pNext; /* Next buffer in the list of free buffers */ @@ -16701,7 +17473,7 @@ struct LookasideSlot { #define EnableLookaside db->lookaside.bDisable--;\ db->lookaside.sz=db->lookaside.bDisable?0:db->lookaside.szTrue -/* Size of the smaller allocations in two-size lookside */ +/* Size of the smaller allocations in two-size lookaside */ #ifdef SQLITE_OMIT_TWOSIZE_LOOKASIDE # define LOOKASIDE_SMALL 0 #else @@ -16901,6 +17673,7 @@ struct sqlite3 { i64 nDeferredCons; /* Net deferred constraints this transaction. */ i64 nDeferredImmCons; /* Net deferred immediate constraints */ int *pnBytesFreed; /* If not NULL, increment this in DbFree() */ + DbClientData *pDbData; /* sqlite3_set_clientdata() content */ #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY /* The following variables are all protected by the STATIC_MAIN ** mutex, not by sqlite3.mutex. They are used by code in notify.c. @@ -16956,7 +17729,7 @@ struct sqlite3 { #define SQLITE_NullCallback 0x00000100 /* Invoke the callback once if the */ /* result set is empty */ #define SQLITE_IgnoreChecks 0x00000200 /* Do not enforce check constraints */ -#define SQLITE_ReadUncommit 0x00000400 /* READ UNCOMMITTED in shared-cache */ +#define SQLITE_StmtScanStatus 0x00000400 /* Enable stmt_scanstats() counters */ #define SQLITE_NoCkptOnClose 0x00000800 /* No checkpoint on close()/DETACH */ #define SQLITE_ReverseOrder 0x00001000 /* Reverse unordered SELECTs */ #define SQLITE_RecTriggers 0x00002000 /* Enable recursive triggers */ @@ -16982,6 +17755,8 @@ struct sqlite3 { /* DELETE, or UPDATE and return */ /* the count using a callback. */ #define SQLITE_CorruptRdOnly HI(0x00002) /* Prohibit writes due to error */ +#define SQLITE_ReadUncommit HI(0x00004) /* READ UNCOMMITTED in shared-cache */ +#define SQLITE_FkNoAction HI(0x00008) /* Treat all FK as NO ACTION */ /* Flags used only if debugging */ #ifdef SQLITE_DEBUG @@ -17033,6 +17808,13 @@ struct sqlite3 { #define SQLITE_BloomFilter 0x00080000 /* Use a Bloom filter on searches */ #define SQLITE_BloomPulldown 0x00100000 /* Run Bloom filters early */ #define SQLITE_BalancedMerge 0x00200000 /* Balance multi-way merges */ +#define SQLITE_ReleaseReg 0x00400000 /* Use OP_ReleaseReg for testing */ +#define SQLITE_FlttnUnionAll 0x00800000 /* Disable the UNION ALL flattener */ + /* TH3 expects this value ^^^^^^^^^^ See flatten04.test */ +#define SQLITE_IndexedExpr 0x01000000 /* Pull exprs from index when able */ +#define SQLITE_Coroutines 0x02000000 /* Co-routines for subqueries */ +#define SQLITE_NullUnusedCols 0x04000000 /* NULL unused columns in subqueries */ +#define SQLITE_OnePass 0x08000000 /* Single-pass DELETE and UPDATE */ #define SQLITE_AllOpts 0xffffffff /* All optimizations */ /* @@ -17115,10 +17897,17 @@ struct FuncDestructor { ** SQLITE_FUNC_ANYORDER == NC_OrderAgg == SF_OrderByReqd ** SQLITE_FUNC_LENGTH == OPFLAG_LENGTHARG ** SQLITE_FUNC_TYPEOF == OPFLAG_TYPEOFARG +** SQLITE_FUNC_BYTELEN == OPFLAG_BYTELENARG ** SQLITE_FUNC_CONSTANT == SQLITE_DETERMINISTIC from the API ** SQLITE_FUNC_DIRECT == SQLITE_DIRECTONLY from the API -** SQLITE_FUNC_UNSAFE == SQLITE_INNOCUOUS +** SQLITE_FUNC_UNSAFE == SQLITE_INNOCUOUS -- opposite meanings!!! ** SQLITE_FUNC_ENCMASK depends on SQLITE_UTF* macros in the API +** +** Note that even though SQLITE_FUNC_UNSAFE and SQLITE_INNOCUOUS have the +** same bit value, their meanings are inverted. SQLITE_FUNC_UNSAFE is +** used internally and if set means that the function has side effects. +** SQLITE_INNOCUOUS is used by application code and means "not unsafe". +** See multiple instances of tag-20230109-1. */ #define SQLITE_FUNC_ENCMASK 0x0003 /* SQLITE_UTF8, SQLITE_UTF16BE or UTF16LE */ #define SQLITE_FUNC_LIKE 0x0004 /* Candidate for the LIKE optimization */ @@ -17127,6 +17916,7 @@ struct FuncDestructor { #define SQLITE_FUNC_NEEDCOLL 0x0020 /* sqlite3GetFuncCollSeq() might be called*/ #define SQLITE_FUNC_LENGTH 0x0040 /* Built-in length() function */ #define SQLITE_FUNC_TYPEOF 0x0080 /* Built-in typeof() function */ +#define SQLITE_FUNC_BYTELEN 0x00c0 /* Built-in octet_length() function */ #define SQLITE_FUNC_COUNT 0x0100 /* Built-in count(*) aggregate */ /* 0x0200 -- available for reuse */ #define SQLITE_FUNC_UNLIKELY 0x0400 /* Built-in unlikely() function */ @@ -17135,14 +17925,15 @@ struct FuncDestructor { #define SQLITE_FUNC_SLOCHNG 0x2000 /* "Slow Change". Value constant during a ** single query - might change over time */ #define SQLITE_FUNC_TEST 0x4000 /* Built-in testing functions */ -#define SQLITE_FUNC_OFFSET 0x8000 /* Built-in sqlite_offset() function */ +#define SQLITE_FUNC_RUNONLY 0x8000 /* Cannot be used by valueFromFunction */ #define SQLITE_FUNC_WINDOW 0x00010000 /* Built-in window-only function */ #define SQLITE_FUNC_INTERNAL 0x00040000 /* For use by NestedParse() only */ #define SQLITE_FUNC_DIRECT 0x00080000 /* Not for use in TRIGGERs or VIEWs */ -#define SQLITE_FUNC_SUBTYPE 0x00100000 /* Result likely to have sub-type */ +/* SQLITE_SUBTYPE 0x00100000 // Consumer of subtypes */ #define SQLITE_FUNC_UNSAFE 0x00200000 /* Function has side effects */ #define SQLITE_FUNC_INLINE 0x00400000 /* Functions implemented in-line */ #define SQLITE_FUNC_BUILTIN 0x00800000 /* This is a built-in function */ +/* SQLITE_RESULT_SUBTYPE 0x01000000 // Generator of subtypes */ #define SQLITE_FUNC_ANYORDER 0x08000000 /* count/min/max aggregate */ /* Identifier numbers for each in-line function */ @@ -17152,6 +17943,7 @@ struct FuncDestructor { #define INLINEFUNC_expr_compare 3 #define INLINEFUNC_affinity 4 #define INLINEFUNC_iif 5 +#define INLINEFUNC_sqlite_offset 6 #define INLINEFUNC_unlikely 99 /* Default case */ /* @@ -17233,10 +18025,11 @@ struct FuncDestructor { #define MFUNCTION(zName, nArg, xPtr, xFunc) \ {nArg, SQLITE_FUNC_BUILTIN|SQLITE_FUNC_CONSTANT|SQLITE_UTF8, \ xPtr, 0, xFunc, 0, 0, 0, #zName, {0} } -#define JFUNCTION(zName, nArg, iArg, xFunc) \ - {nArg, SQLITE_FUNC_BUILTIN|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS|\ - SQLITE_FUNC_CONSTANT|SQLITE_UTF8, \ - SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, 0, #zName, {0} } +#define JFUNCTION(zName, nArg, bUseCache, bWS, bRS, bJsonB, iArg, xFunc) \ + {nArg, SQLITE_FUNC_BUILTIN|SQLITE_DETERMINISTIC|SQLITE_FUNC_CONSTANT|\ + SQLITE_UTF8|((bUseCache)*SQLITE_FUNC_RUNONLY)|\ + ((bRS)*SQLITE_SUBTYPE)|((bWS)*SQLITE_RESULT_SUBTYPE), \ + SQLITE_INT_TO_PTR(iArg|((bJsonB)*JSON_BLOB)),0,xFunc,0, 0, 0, #zName, {0} } #define INLINE_FUNC(zName, nArg, iArg, mFlags) \ {nArg, SQLITE_FUNC_BUILTIN|\ SQLITE_UTF8|SQLITE_FUNC_INLINE|SQLITE_FUNC_CONSTANT|(mFlags), \ @@ -17378,6 +18171,7 @@ struct Column { #define COLFLAG_NOTAVAIL 0x0080 /* STORED column not yet calculated */ #define COLFLAG_BUSY 0x0100 /* Blocks recursion on GENERATED columns */ #define COLFLAG_HASCOLL 0x0200 /* Has collating sequence name in zCnName */ +#define COLFLAG_NOEXPAND 0x0400 /* Omit this column when expanding "*" */ #define COLFLAG_GENERATED 0x0060 /* Combo: _STORED, _VIRTUAL */ #define COLFLAG_NOINSERT 0x0062 /* Combo: _HIDDEN, _STORED, _VIRTUAL */ @@ -17425,6 +18219,7 @@ struct CollSeq { #define SQLITE_AFF_NUMERIC 0x43 /* 'C' */ #define SQLITE_AFF_INTEGER 0x44 /* 'D' */ #define SQLITE_AFF_REAL 0x45 /* 'E' */ +#define SQLITE_AFF_FLEXNUM 0x46 /* 'F' */ #define sqlite3IsNumericAffinity(X) ((X)>=SQLITE_AFF_NUMERIC) @@ -17495,6 +18290,7 @@ struct VTable { sqlite3_vtab *pVtab; /* Pointer to vtab instance */ int nRef; /* Number of pointers to this structure */ u8 bConstraint; /* True if constraints are supported */ + u8 bAllSchemas; /* True if might use any attached schema */ u8 eVtabRisk; /* Riskiness of allowing hacker access */ int iSavepoint; /* Depth of the SAVEPOINT stack */ VTable *pNext; /* Next in linked list (see above) */ @@ -17603,7 +18399,7 @@ struct Table { #ifndef SQLITE_OMIT_VIRTUALTABLE # define IsVirtual(X) ((X)->eTabType==TABTYP_VTAB) # define ExprIsVtab(X) \ - ((X)->op==TK_COLUMN && (X)->y.pTab!=0 && (X)->y.pTab->eTabType==TABTYP_VTAB) + ((X)->op==TK_COLUMN && (X)->y.pTab->eTabType==TABTYP_VTAB) #else # define IsVirtual(X) 0 # define ExprIsVtab(X) 0 @@ -17702,7 +18498,7 @@ struct FKey { ** foreign key. ** ** The OE_Default value is a place holder that means to use whatever -** conflict resolution algorthm is required from context. +** conflict resolution algorithm is required from context. ** ** The following symbolic values are used to record which type ** of conflict resolution action to take. @@ -17784,6 +18580,11 @@ struct KeyInfo { struct UnpackedRecord { KeyInfo *pKeyInfo; /* Collation and sort-order information */ Mem *aMem; /* Values */ + union { + char *z; /* Cache of aMem[0].z for vdbeRecordCompareString() */ + i64 i; /* Cache of aMem[0].u.i for vdbeRecordCompareInt() */ + } u; + int n; /* Cache of aMem[0].n used by vdbeRecordCompareString() */ u16 nField; /* Number of entries in apMem[] */ i8 default_rc; /* Comparison result if keys are equal */ u8 errCode; /* Error detected by xRecordCompare (CORRUPT or NOMEM) */ @@ -17815,10 +18616,22 @@ struct UnpackedRecord { ** The Index.onError field determines whether or not the indexed columns ** must be unique and what to do if they are not. When Index.onError=OE_None, ** it means this is not a unique index. Otherwise it is a unique index -** and the value of Index.onError indicate the which conflict resolution -** algorithm to employ whenever an attempt is made to insert a non-unique +** and the value of Index.onError indicates which conflict resolution +** algorithm to employ when an attempt is made to insert a non-unique ** element. ** +** The colNotIdxed bitmask is used in combination with SrcItem.colUsed +** for a fast test to see if an index can serve as a covering index. +** colNotIdxed has a 1 bit for every column of the original table that +** is *not* available in the index. Thus the expression +** "colUsed & colNotIdxed" will be non-zero if the index is not a +** covering index. The most significant bit of of colNotIdxed will always +** be true (note-20221022-a). If a column beyond the 63rd column of the +** table is used, the "colUsed & colNotIdxed" test will always be non-zero +** and we have to assume either that the index is not covering, or use +** an alternative (slower) algorithm to determine whether or not +** the index is covering. +** ** While parsing a CREATE TABLE or CREATE INDEX statement in order to ** generate VDBE code (as opposed to parsing one read from an sqlite_schema ** table as part of parsing an existing database schema), transient instances @@ -17851,18 +18664,22 @@ struct Index { unsigned isCovering:1; /* True if this is a covering index */ unsigned noSkipScan:1; /* Do not try to use skip-scan if true */ unsigned hasStat1:1; /* aiRowLogEst values come from sqlite_stat1 */ + unsigned bLowQual:1; /* sqlite_stat1 says this is a low-quality index */ unsigned bNoQuery:1; /* Do not use this index to optimize queries */ unsigned bAscKeyBug:1; /* True if the bba7b69f9849b5bf bug applies */ unsigned bHasVCol:1; /* Index references one or more VIRTUAL columns */ + unsigned bHasExpr:1; /* Index contains an expression, either a literal + ** expression, or a reference to a VIRTUAL column */ #ifdef SQLITE_ENABLE_STAT4 int nSample; /* Number of elements in aSample[] */ + int mxSample; /* Number of slots allocated to aSample[] */ int nSampleCol; /* Size of IndexSample.anEq[] and so on */ tRowcnt *aAvgEq; /* Average nEq values for keys not in aSample */ IndexSample *aSample; /* Samples of the left-most key */ tRowcnt *aiRowEst; /* Non-logarithmic stat1 data for this index */ tRowcnt nRowEst0; /* Non-logarithmic number of rows in the index */ #endif - Bitmask colNotIdxed; /* 0 for unindexed columns in pTab */ + Bitmask colNotIdxed; /* Unindexed columns in pTab */ }; /* @@ -17937,16 +18754,15 @@ struct AggInfo { ** from source tables rather than from accumulators */ u8 useSortingIdx; /* In direct mode, reference the sorting index rather ** than the source table */ + u16 nSortingColumn; /* Number of columns in the sorting index */ int sortingIdx; /* Cursor number of the sorting index */ int sortingIdxPTab; /* Cursor number of pseudo-table */ - int nSortingColumn; /* Number of columns in the sorting index */ - int mnReg, mxReg; /* Range of registers allocated for aCol and aFunc */ + int iFirstReg; /* First register in range for aCol[] and aFunc[] */ ExprList *pGroupBy; /* The group by clause */ struct AggInfo_col { /* For each column used in source tables */ Table *pTab; /* Source table */ Expr *pCExpr; /* The original expression */ int iTable; /* Cursor number of the source table */ - int iMem; /* Memory location that acts as accumulator */ i16 iColumn; /* Column number within the source table */ i16 iSorterColumn; /* Column number in the sorting index */ } *aCol; @@ -17957,15 +18773,32 @@ struct AggInfo { struct AggInfo_func { /* For each aggregate function */ Expr *pFExpr; /* Expression encoding the function */ FuncDef *pFunc; /* The aggregate function implementation */ - int iMem; /* Memory location that acts as accumulator */ int iDistinct; /* Ephemeral table used to enforce DISTINCT */ int iDistAddr; /* Address of OP_OpenEphemeral */ + int iOBTab; /* Ephemeral table to implement ORDER BY */ + u8 bOBPayload; /* iOBTab has payload columns separate from key */ + u8 bOBUnique; /* Enforce uniqueness on iOBTab keys */ + u8 bUseSubtype; /* Transfer subtype info through sorter */ } *aFunc; int nFunc; /* Number of entries in aFunc[] */ u32 selId; /* Select to which this AggInfo belongs */ +#ifdef SQLITE_DEBUG + Select *pSelect; /* SELECT statement that this AggInfo supports */ +#endif }; /* +** Macros to compute aCol[] and aFunc[] register numbers. +** +** These macros should not be used prior to the call to +** assignAggregateRegisters() that computes the value of pAggInfo->iFirstReg. +** The assert()s that are part of this macro verify that constraint. +*/ +#define AggInfoColumnReg(A,I) (assert((A)->iFirstReg),(A)->iFirstReg+(I)) +#define AggInfoFuncReg(A,I) \ + (assert((A)->iFirstReg),(A)->iFirstReg+(A)->nColumn+(I)) + +/* ** The datatype ynVar is a signed integer, either 16-bit or 32-bit. ** Usually it is 16-bits. But if SQLITE_MAX_VARIABLE_NUMBER is greater ** than 32767 we have to make it 32-bit. 16-bit is preferred because @@ -18084,7 +18917,7 @@ struct Expr { ** TK_REGISTER: register number ** TK_TRIGGER: 1 -> new, 0 -> old ** EP_Unlikely: 134217728 times likelihood - ** TK_IN: ephemerial table holding RHS + ** TK_IN: ephemeral table holding RHS ** TK_SELECT_COLUMN: Number of columns on the LHS ** TK_SELECT: 1st register of result vector */ ynVar iColumn; /* TK_COLUMN: column index. -1 for rowid. @@ -18092,7 +18925,7 @@ struct Expr { ** TK_SELECT_COLUMN: column of the result vector */ i16 iAgg; /* Which entry in pAggInfo->aCol[] or ->aFunc[] */ union { - int iRightJoinTable; /* If EP_FromJoin, the right table of the join */ + int iJoin; /* If EP_OuterON or EP_InnerON, the right table */ int iOfst; /* else: start of token from start of statement */ } w; AggInfo *pAggInfo; /* Used by TK_AGG_COLUMN and TK_AGG_FUNCTION */ @@ -18113,29 +18946,29 @@ struct Expr { ** EP_Agg == NC_HasAgg == SF_HasAgg ** EP_Win == NC_HasWin */ -#define EP_FromJoin 0x000001 /* Originates in ON/USING clause of outer join */ -#define EP_Distinct 0x000002 /* Aggregate function with DISTINCT keyword */ -#define EP_HasFunc 0x000004 /* Contains one or more functions of any kind */ -#define EP_FixedCol 0x000008 /* TK_Column with a known fixed value */ +#define EP_OuterON 0x000001 /* Originates in ON/USING clause of outer join */ +#define EP_InnerON 0x000002 /* Originates in ON/USING of an inner join */ +#define EP_Distinct 0x000004 /* Aggregate function with DISTINCT keyword */ +#define EP_HasFunc 0x000008 /* Contains one or more functions of any kind */ #define EP_Agg 0x000010 /* Contains one or more aggregate functions */ -#define EP_VarSelect 0x000020 /* pSelect is correlated, not constant */ -#define EP_DblQuoted 0x000040 /* token.z was originally in "..." */ -#define EP_InfixFunc 0x000080 /* True for an infix function: LIKE, GLOB, etc */ -#define EP_Collate 0x000100 /* Tree contains a TK_COLLATE operator */ -#define EP_Commuted 0x000200 /* Comparison operator has been commuted */ -#define EP_IntValue 0x000400 /* Integer value contained in u.iValue */ -#define EP_xIsSelect 0x000800 /* x.pSelect is valid (otherwise x.pList is) */ -#define EP_Skip 0x001000 /* Operator does not contribute to affinity */ -#define EP_Reduced 0x002000 /* Expr struct EXPR_REDUCEDSIZE bytes only */ -#define EP_TokenOnly 0x004000 /* Expr struct EXPR_TOKENONLYSIZE bytes only */ +#define EP_FixedCol 0x000020 /* TK_Column with a known fixed value */ +#define EP_VarSelect 0x000040 /* pSelect is correlated, not constant */ +#define EP_DblQuoted 0x000080 /* token.z was originally in "..." */ +#define EP_InfixFunc 0x000100 /* True for an infix function: LIKE, GLOB, etc */ +#define EP_Collate 0x000200 /* Tree contains a TK_COLLATE operator */ +#define EP_Commuted 0x000400 /* Comparison operator has been commuted */ +#define EP_IntValue 0x000800 /* Integer value contained in u.iValue */ +#define EP_xIsSelect 0x001000 /* x.pSelect is valid (otherwise x.pList is) */ +#define EP_Skip 0x002000 /* Operator does not contribute to affinity */ +#define EP_Reduced 0x004000 /* Expr struct EXPR_REDUCEDSIZE bytes only */ #define EP_Win 0x008000 /* Contains window functions */ -#define EP_MemToken 0x010000 /* Need to sqlite3DbFree() Expr.zToken */ -#define EP_IfNullRow 0x020000 /* The TK_IF_NULL_ROW opcode */ -#define EP_Unlikely 0x040000 /* unlikely() or likelihood() function */ -#define EP_ConstFunc 0x080000 /* A SQLITE_FUNC_CONSTANT or _SLOCHNG function */ -#define EP_CanBeNull 0x100000 /* Can be null despite NOT NULL constraint */ -#define EP_Subquery 0x200000 /* Tree contains a TK_SELECT operator */ - /* 0x400000 // Available */ +#define EP_TokenOnly 0x010000 /* Expr struct EXPR_TOKENONLYSIZE bytes only */ +#define EP_FullSize 0x020000 /* Expr structure must remain full sized */ +#define EP_IfNullRow 0x040000 /* The TK_IF_NULL_ROW opcode */ +#define EP_Unlikely 0x080000 /* unlikely() or likelihood() function */ +#define EP_ConstFunc 0x100000 /* A SQLITE_FUNC_CONSTANT or _SLOCHNG function */ +#define EP_CanBeNull 0x200000 /* Can be null despite NOT NULL constraint */ +#define EP_Subquery 0x400000 /* Tree contains a TK_SELECT operator */ #define EP_Leaf 0x800000 /* Expr.pLeft, .pRight, .u.pSelect all NULL */ #define EP_WinFunc 0x1000000 /* TK_FUNCTION with Expr.y.pWin set */ #define EP_Subrtn 0x2000000 /* Uses Expr.y.sub. TK_IN, _SELECT, or _EXISTS */ @@ -18158,14 +18991,17 @@ struct Expr { #define ExprHasAllProperty(E,P) (((E)->flags&(P))==(P)) #define ExprSetProperty(E,P) (E)->flags|=(P) #define ExprClearProperty(E,P) (E)->flags&=~(P) -#define ExprAlwaysTrue(E) (((E)->flags&(EP_FromJoin|EP_IsTrue))==EP_IsTrue) -#define ExprAlwaysFalse(E) (((E)->flags&(EP_FromJoin|EP_IsFalse))==EP_IsFalse) +#define ExprAlwaysTrue(E) (((E)->flags&(EP_OuterON|EP_IsTrue))==EP_IsTrue) +#define ExprAlwaysFalse(E) (((E)->flags&(EP_OuterON|EP_IsFalse))==EP_IsFalse) +#define ExprIsFullSize(E) (((E)->flags&(EP_Reduced|EP_TokenOnly))==0) /* Macros used to ensure that the correct members of unions are accessed ** in Expr. */ #define ExprUseUToken(E) (((E)->flags&EP_IntValue)==0) #define ExprUseUValue(E) (((E)->flags&EP_IntValue)!=0) +#define ExprUseWOfst(E) (((E)->flags&(EP_InnerON|EP_OuterON))==0) +#define ExprUseWJoin(E) (((E)->flags&(EP_InnerON|EP_OuterON))!=0) #define ExprUseXList(E) (((E)->flags&EP_xIsSelect)==0) #define ExprUseXSelect(E) (((E)->flags&EP_xIsSelect)!=0) #define ExprUseYTab(E) (((E)->flags&(EP_WinFunc|EP_Subrtn))==0) @@ -18246,12 +19082,18 @@ struct ExprList { struct ExprList_item { /* For each expression in the list */ Expr *pExpr; /* The parse tree for this expression */ char *zEName; /* Token associated with this expression */ - u8 sortFlags; /* Mask of KEYINFO_ORDER_* flags */ - unsigned eEName :2; /* Meaning of zEName */ - unsigned done :1; /* A flag to indicate when processing is finished */ - unsigned reusable :1; /* Constant expression is reusable */ - unsigned bSorterRef :1; /* Defer evaluation until after sorting */ - unsigned bNulls: 1; /* True if explicit "NULLS FIRST/LAST" */ + struct { + u8 sortFlags; /* Mask of KEYINFO_ORDER_* flags */ + unsigned eEName :2; /* Meaning of zEName */ + unsigned done :1; /* Indicates when processing is finished */ + unsigned reusable :1; /* Constant expression is reusable */ + unsigned bSorterRef :1; /* Defer evaluation until after sorting */ + unsigned bNulls :1; /* True if explicit "NULLS FIRST/LAST" */ + unsigned bUsed :1; /* This column used in a SF_NestedFrom subquery */ + unsigned bUsingTerm:1; /* Term from the USING clause of a NestedFrom */ + unsigned bNoExpand: 1; /* Term is an auxiliary in NestedFrom and should + ** not be expanded by "*" in parent queries */ + } fg; union { struct { /* Used by any ExprList other than Parse.pConsExpr */ u16 iOrderByCol; /* For ORDER BY, column number in result set */ @@ -18269,6 +19111,7 @@ struct ExprList { #define ENAME_NAME 0 /* The AS clause of a result set */ #define ENAME_SPAN 1 /* Complete text of the result set expression */ #define ENAME_TAB 2 /* "DB.TABLE.NAME" for the result set */ +#define ENAME_ROWID 3 /* "DB.TABLE._rowid_" for * expansion of rowid */ /* ** An instance of this structure can hold a simple list of identifiers, @@ -18286,17 +19129,37 @@ struct ExprList { ** If "a" is the k-th column of table "t", then IdList.a[0].idx==k. */ struct IdList { + int nId; /* Number of identifiers on the list */ + u8 eU4; /* Which element of a.u4 is valid */ struct IdList_item { char *zName; /* Name of the identifier */ - int idx; /* Index in some Table.aCol[] of a column named zName */ - } *a; - int nId; /* Number of identifiers on the list */ + union { + int idx; /* Index in some Table.aCol[] of a column named zName */ + Expr *pExpr; /* Expr to implement a USING variable -- NOT USED */ + } u4; + } a[1]; }; /* +** Allowed values for IdList.eType, which determines which value of the a.u4 +** is valid. +*/ +#define EU4_NONE 0 /* Does not use IdList.a.u4 */ +#define EU4_IDX 1 /* Uses IdList.a.u4.idx */ +#define EU4_EXPR 2 /* Uses IdList.a.u4.pExpr -- NOT CURRENTLY USED */ + +/* ** The SrcItem object represents a single term in the FROM clause of a query. ** The SrcList object is mostly an array of SrcItems. ** +** The jointype starts out showing the join type between the current table +** and the next table on the list. The parser builds the list this way. +** But sqlite3SrcListShiftJoinType() later shifts the jointypes so that each +** jointype expresses the join between the table and the previous table. +** +** In the colUsed field, the high-order bit (bit 63) is set if the table +** contains more than 63 columns and the 64-th or later column is used. +** ** Union member validity: ** ** u1.zIndexedBy fg.isIndexedBy && !fg.isTabFunc @@ -18320,44 +19183,48 @@ struct SrcItem { unsigned isIndexedBy :1; /* True if there is an INDEXED BY clause */ unsigned isTabFunc :1; /* True if table-valued-function syntax */ unsigned isCorrelated :1; /* True if sub-query is correlated */ + unsigned isMaterialized:1; /* This is a materialized view */ unsigned viaCoroutine :1; /* Implemented as a co-routine */ unsigned isRecursive :1; /* True for recursive reference in WITH */ unsigned fromDDL :1; /* Comes from sqlite_schema */ unsigned isCte :1; /* This is a CTE */ unsigned notCte :1; /* This item may not match a CTE */ + unsigned isUsing :1; /* u3.pUsing is valid */ + unsigned isOn :1; /* u3.pOn was once valid and non-NULL */ + unsigned isSynthUsing :1; /* u3.pUsing is synthesized from NATURAL */ + unsigned isNestedFrom :1; /* pSelect is a SF_NestedFrom subquery */ } fg; int iCursor; /* The VDBE cursor number used to access this table */ - Expr *pOn; /* The ON clause of a join */ - IdList *pUsing; /* The USING clause of a join */ - Bitmask colUsed; /* Bit N (1<<N) set if column N of pTab is used */ + union { + Expr *pOn; /* fg.isUsing==0 => The ON clause of a join */ + IdList *pUsing; /* fg.isUsing==1 => The USING clause of a join */ + } u3; + Bitmask colUsed; /* Bit N set if column N used. Details above for N>62 */ union { char *zIndexedBy; /* Identifier from "INDEXED BY <zIndex>" clause */ ExprList *pFuncArg; /* Arguments to table-valued-function */ } u1; union { Index *pIBIndex; /* Index structure corresponding to u1.zIndexedBy */ - CteUse *pCteUse; /* CTE Usage info info fg.isCte is true */ + CteUse *pCteUse; /* CTE Usage info when fg.isCte is true */ } u2; }; /* -** The following structure describes the FROM clause of a SELECT statement. -** Each table or subquery in the FROM clause is a separate element of -** the SrcList.a[] array. -** -** With the addition of multiple database support, the following structure -** can also be used to describe a particular table such as the table that -** is modified by an INSERT, DELETE, or UPDATE statement. In standard SQL, -** such a table must be a simple name: ID. But in SQLite, the table can -** now be identified by a database name, a dot, then the table name: ID.ID. -** -** The jointype starts out showing the join type between the current table -** and the next table on the list. The parser builds the list this way. -** But sqlite3SrcListShiftJoinType() later shifts the jointypes so that each -** jointype expresses the join between the table and the previous table. +** The OnOrUsing object represents either an ON clause or a USING clause. +** It can never be both at the same time, but it can be neither. +*/ +struct OnOrUsing { + Expr *pOn; /* The ON clause of a join */ + IdList *pUsing; /* The USING clause of a join */ +}; + +/* +** This object represents one or more tables that are the source of +** content for an SQL statement. For example, a single SrcList object +** is used to hold the FROM clause of a SELECT statement. SrcList also +** represents the target tables for DELETE, INSERT, and UPDATE statements. ** -** In the colUsed field, the high-order bit (bit 63) is set if the table -** contains more than 63 columns and the 64-th or later column is used. */ struct SrcList { int nSrc; /* Number of tables or subqueries in the FROM clause */ @@ -18368,14 +19235,15 @@ struct SrcList { /* ** Permitted values of the SrcList.a.jointype field */ -#define JT_INNER 0x0001 /* Any kind of inner or cross join */ -#define JT_CROSS 0x0002 /* Explicit use of the CROSS keyword */ -#define JT_NATURAL 0x0004 /* True for a "natural" join */ -#define JT_LEFT 0x0008 /* Left outer join */ -#define JT_RIGHT 0x0010 /* Right outer join */ -#define JT_OUTER 0x0020 /* The "OUTER" keyword is present */ -#define JT_ERROR 0x0040 /* unknown or unsupported join type */ - +#define JT_INNER 0x01 /* Any kind of inner or cross join */ +#define JT_CROSS 0x02 /* Explicit use of the CROSS keyword */ +#define JT_NATURAL 0x04 /* True for a "natural" join */ +#define JT_LEFT 0x08 /* Left outer join */ +#define JT_RIGHT 0x10 /* Right outer join */ +#define JT_OUTER 0x20 /* The "OUTER" keyword is present */ +#define JT_LTORJ 0x40 /* One of the LEFT operands of a RIGHT JOIN + ** Mnemonic: Left Table Of Right Join */ +#define JT_ERROR 0x80 /* unknown or unsupported join type */ /* ** Flags appropriate for the wctrlFlags parameter of sqlite3WhereBegin() @@ -18398,7 +19266,7 @@ struct SrcList { #define WHERE_SORTBYGROUP 0x0200 /* Support sqlite3WhereIsSorted() */ #define WHERE_AGG_DISTINCT 0x0400 /* Query is "SELECT agg(DISTINCT ...)" */ #define WHERE_ORDERBY_LIMIT 0x0800 /* ORDERBY+LIMIT on the inner loop */ - /* 0x1000 not currently used */ +#define WHERE_RIGHT_JOIN 0x1000 /* Processing a RIGHT JOIN */ /* 0x2000 not currently used */ #define WHERE_USE_LIMIT 0x4000 /* Use the LIMIT in cost estimates */ /* 0x8000 not currently used */ @@ -18444,6 +19312,7 @@ struct NameContext { int nRef; /* Number of names resolved by this context */ int nNcErr; /* Number of errors encountered while resolving names */ int ncFlags; /* Zero or more NC_* flags defined below */ + u32 nNestedSelect; /* Number of nested selects using this NC */ Select *pWinSelect; /* SELECT statement for any window functions */ }; @@ -18464,7 +19333,7 @@ struct NameContext { #define NC_HasAgg 0x000010 /* One or more aggregate functions seen */ #define NC_IdxExpr 0x000020 /* True if resolving columns of CREATE INDEX */ #define NC_SelfRef 0x00002e /* Combo: PartIdx, isCheck, GenCol, and IdxExpr */ -#define NC_VarSelect 0x000040 /* A correlated subquery has been seen */ +#define NC_Subquery 0x000040 /* A subquery has been seen */ #define NC_UEList 0x000080 /* True if uNC.pEList is used */ #define NC_UAggInfo 0x000100 /* True if uNC.pAggInfo is used */ #define NC_UUpsert 0x000200 /* True if uNC.pUpsert is used */ @@ -18593,6 +19462,10 @@ struct Select { #define SF_MultiPart 0x2000000 /* Has multiple incompatible PARTITIONs */ #define SF_CopyCte 0x4000000 /* SELECT statement is a copy of a CTE */ #define SF_OrderByReqd 0x8000000 /* The ORDER BY clause may not be omitted */ +#define SF_UpdateFrom 0x10000000 /* Query originates with UPDATE FROM */ + +/* True if S exists and has SF_NestedFrom */ +#define IsNestedFrom(S) ((S)!=0 && ((S)->selFlags&SF_NestedFrom)!=0) /* ** The results of a SELECT can be distributed in several ways, as defined @@ -18698,7 +19571,7 @@ struct SelectDest { int iSDParm2; /* A second parameter for the eDest disposal method */ int iSdst; /* Base register where results are written */ int nSdst; /* Number of registers allocated */ - char *zAffSdst; /* Affinity used when eDest==SRT_Set */ + char *zAffSdst; /* Affinity used for SRT_Set */ ExprList *pOrderBy; /* Key columns for SRT_Queue and SRT_DistQueue */ }; @@ -18757,11 +19630,34 @@ struct TriggerPrg { #else typedef unsigned int yDbMask; # define DbMaskTest(M,I) (((M)&(((yDbMask)1)<<(I)))!=0) -# define DbMaskZero(M) (M)=0 -# define DbMaskSet(M,I) (M)|=(((yDbMask)1)<<(I)) -# define DbMaskAllZero(M) (M)==0 -# define DbMaskNonZero(M) (M)!=0 +# define DbMaskZero(M) ((M)=0) +# define DbMaskSet(M,I) ((M)|=(((yDbMask)1)<<(I))) +# define DbMaskAllZero(M) ((M)==0) +# define DbMaskNonZero(M) ((M)!=0) +#endif + +/* +** For each index X that has as one of its arguments either an expression +** or the name of a virtual generated column, and if X is in scope such that +** the value of the expression can simply be read from the index, then +** there is an instance of this object on the Parse.pIdxExpr list. +** +** During code generation, while generating code to evaluate expressions, +** this list is consulted and if a matching expression is found, the value +** is read from the index rather than being recomputed. +*/ +struct IndexedExpr { + Expr *pExpr; /* The expression contained in the index */ + int iDataCur; /* The data cursor associated with the index */ + int iIdxCur; /* The index cursor */ + int iIdxCol; /* The index column that contains value of pExpr */ + u8 bMaybeNullRow; /* True if we need an OP_IfNullRow check */ + u8 aff; /* Affinity of the pExpr expression */ + IndexedExpr *pIENext; /* Next in a list of all indexed expressions */ +#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS + const char *zIdxName; /* Name of index, used only for bytecode comments */ #endif +}; /* ** An instance of the ParseCleanup object specifies an operation that @@ -18804,10 +19700,14 @@ struct Parse { u8 hasCompound; /* Need to invoke convertCompoundSelectToSubquery() */ u8 okConstFactor; /* OK to factor out constants */ u8 disableLookaside; /* Number of times lookaside has been disabled */ - u8 disableVtab; /* Disable all virtual tables for this parse */ + u8 prepFlags; /* SQLITE_PREPARE_* flags */ + u8 withinRJSubrtn; /* Nesting level for RIGHT JOIN body subroutines */ #if defined(SQLITE_DEBUG) || defined(SQLITE_COVERAGE_TEST) u8 earlyCleanup; /* OOM inside sqlite3ParserAddCleanup() */ #endif +#ifdef SQLITE_DEBUG + u8 ifNotExists; /* Might be true if IF NOT EXISTS. Assert()s only */ +#endif int nRangeReg; /* Size of the temporary register block */ int iRangeReg; /* First register in temporary register block */ int nErr; /* Number of errors seen */ @@ -18820,6 +19720,8 @@ struct Parse { int nLabelAlloc; /* Number of slots in aLabel */ int *aLabel; /* Space to hold the labels */ ExprList *pConstExpr;/* Constant expressions */ + IndexedExpr *pIdxEpr;/* List of expressions used by active indexes */ + IndexedExpr *pIdxPartExpr; /* Exprs constrained by index WHERE clauses */ Token constraintName;/* Name of the constraint currently being parsed */ yDbMask writeMask; /* Start a write transaction on these databases */ yDbMask cookieMask; /* Bitmask of schema verified databases */ @@ -18827,6 +19729,9 @@ struct Parse { int regRoot; /* Register holding root page number for new objects */ int nMaxArg; /* Max args passed to user function by sub-program */ int nSelect; /* Number of SELECT stmts. Counter for Select.selId */ +#ifndef SQLITE_OMIT_PROGRESS_CALLBACK + u32 nProgressSteps; /* xProgress steps taken during sqlite3_prepare() */ +#endif #ifndef SQLITE_OMIT_SHARED_CACHE int nTableLock; /* Number of locks in aTableLock */ TableLock *aTableLock; /* Required table locks for shared-cache mode */ @@ -18840,9 +19745,9 @@ struct Parse { int addrCrTab; /* Address of OP_CreateBtree on CREATE TABLE */ Returning *pReturning; /* The RETURNING clause */ } u1; - u32 nQueryLoop; /* Est number of iterations of a query (10*log2(N)) */ u32 oldmask; /* Mask of old.* columns referenced */ u32 newmask; /* Mask of new.* columns referenced */ + LogEst nQueryLoop; /* Est number of iterations of a query (10*log2(N)) */ u8 eTriggerOp; /* TK_UPDATE, TK_INSERT or TK_DELETE */ u8 bReturning; /* Coding a RETURNING trigger */ u8 eOrconf; /* Default ON CONFLICT policy for trigger steps */ @@ -18966,6 +19871,7 @@ struct AuthContext { #define OPFLAG_ISNOOP 0x40 /* OP_Delete does pre-update-hook only */ #define OPFLAG_LENGTHARG 0x40 /* OP_Column only used for length() */ #define OPFLAG_TYPEOFARG 0x80 /* OP_Column only used for typeof() */ +#define OPFLAG_BYTELENARG 0xc0 /* OP_Column only for octet_length() */ #define OPFLAG_BULKCSR 0x01 /* OP_Open** used to open bulk cursor */ #define OPFLAG_SEEKEQ 0x02 /* OP_Open** cursor uses EQ seek only */ #define OPFLAG_FORDELETE 0x08 /* OP_Open should use BTREE_FORDELETE */ @@ -18977,20 +19883,20 @@ struct AuthContext { #define OPFLAG_PREFORMAT 0x80 /* OP_Insert uses preformatted cell */ /* - * Each trigger present in the database schema is stored as an instance of - * struct Trigger. - * - * Pointers to instances of struct Trigger are stored in two ways. - * 1. In the "trigHash" hash table (part of the sqlite3* that represents the - * database). This allows Trigger structures to be retrieved by name. - * 2. All triggers associated with a single table form a linked list, using the - * pNext member of struct Trigger. A pointer to the first element of the - * linked list is stored as the "pTrigger" member of the associated - * struct Table. - * - * The "step_list" member points to the first element of a linked list - * containing the SQL statements specified as the trigger program. - */ +** Each trigger present in the database schema is stored as an instance of +** struct Trigger. +** +** Pointers to instances of struct Trigger are stored in two ways. +** 1. In the "trigHash" hash table (part of the sqlite3* that represents the +** database). This allows Trigger structures to be retrieved by name. +** 2. All triggers associated with a single table form a linked list, using the +** pNext member of struct Trigger. A pointer to the first element of the +** linked list is stored as the "pTrigger" member of the associated +** struct Table. +** +** The "step_list" member points to the first element of a linked list +** containing the SQL statements specified as the trigger program. +*/ struct Trigger { char *zName; /* The name of the trigger */ char *table; /* The table or view to which the trigger applies */ @@ -19017,43 +19923,48 @@ struct Trigger { #define TRIGGER_AFTER 2 /* - * An instance of struct TriggerStep is used to store a single SQL statement - * that is a part of a trigger-program. - * - * Instances of struct TriggerStep are stored in a singly linked list (linked - * using the "pNext" member) referenced by the "step_list" member of the - * associated struct Trigger instance. The first element of the linked list is - * the first step of the trigger-program. - * - * The "op" member indicates whether this is a "DELETE", "INSERT", "UPDATE" or - * "SELECT" statement. The meanings of the other members is determined by the - * value of "op" as follows: - * - * (op == TK_INSERT) - * orconf -> stores the ON CONFLICT algorithm - * pSelect -> If this is an INSERT INTO ... SELECT ... statement, then - * this stores a pointer to the SELECT statement. Otherwise NULL. - * zTarget -> Dequoted name of the table to insert into. - * pExprList -> If this is an INSERT INTO ... VALUES ... statement, then - * this stores values to be inserted. Otherwise NULL. - * pIdList -> If this is an INSERT INTO ... (<column-names>) VALUES ... - * statement, then this stores the column-names to be - * inserted into. - * - * (op == TK_DELETE) - * zTarget -> Dequoted name of the table to delete from. - * pWhere -> The WHERE clause of the DELETE statement if one is specified. - * Otherwise NULL. - * - * (op == TK_UPDATE) - * zTarget -> Dequoted name of the table to update. - * pWhere -> The WHERE clause of the UPDATE statement if one is specified. - * Otherwise NULL. - * pExprList -> A list of the columns to update and the expressions to update - * them to. See sqlite3Update() documentation of "pChanges" - * argument. - * - */ +** An instance of struct TriggerStep is used to store a single SQL statement +** that is a part of a trigger-program. +** +** Instances of struct TriggerStep are stored in a singly linked list (linked +** using the "pNext" member) referenced by the "step_list" member of the +** associated struct Trigger instance. The first element of the linked list is +** the first step of the trigger-program. +** +** The "op" member indicates whether this is a "DELETE", "INSERT", "UPDATE" or +** "SELECT" statement. The meanings of the other members is determined by the +** value of "op" as follows: +** +** (op == TK_INSERT) +** orconf -> stores the ON CONFLICT algorithm +** pSelect -> The content to be inserted - either a SELECT statement or +** a VALUES clause. +** zTarget -> Dequoted name of the table to insert into. +** pIdList -> If this is an INSERT INTO ... (<column-names>) VALUES ... +** statement, then this stores the column-names to be +** inserted into. +** pUpsert -> The ON CONFLICT clauses for an Upsert +** +** (op == TK_DELETE) +** zTarget -> Dequoted name of the table to delete from. +** pWhere -> The WHERE clause of the DELETE statement if one is specified. +** Otherwise NULL. +** +** (op == TK_UPDATE) +** zTarget -> Dequoted name of the table to update. +** pWhere -> The WHERE clause of the UPDATE statement if one is specified. +** Otherwise NULL. +** pExprList -> A list of the columns to update and the expressions to update +** them to. See sqlite3Update() documentation of "pChanges" +** argument. +** +** (op == TK_SELECT) +** pSelect -> The SELECT statement +** +** (op == TK_RETURNING) +** pExprList -> The list of expressions that follow the RETURNING keyword. +** +*/ struct TriggerStep { u8 op; /* One of TK_DELETE, TK_UPDATE, TK_INSERT, TK_SELECT, ** or TK_RETURNING */ @@ -19082,6 +19993,7 @@ struct Returning { int iRetCur; /* Transient table holding RETURNING results */ int nRetCol; /* Number of in pReturnEL after expansion */ int iRetReg; /* Register array for holding a row of RETURNING */ + char zName[40]; /* Name of trigger: "sqlite_returning_%p" */ }; /* @@ -19103,6 +20015,28 @@ struct sqlite3_str { #define isMalloced(X) (((X)->printfFlags & SQLITE_PRINTF_MALLOCED)!=0) +/* +** The following object is the header for an "RCStr" or "reference-counted +** string". An RCStr is passed around and used like any other char* +** that has been dynamically allocated. The important interface +** differences: +** +** 1. RCStr strings are reference counted. They are deallocated +** when the reference count reaches zero. +** +** 2. Use sqlite3RCStrUnref() to free an RCStr string rather than +** sqlite3_free() +** +** 3. Make a (read-only) copy of a read-only RCStr string using +** sqlite3RCStrRef(). +** +** "String" is in the name, but an RCStr object can also be used to hold +** binary data. +*/ +struct RCStr { + u64 nRCRef; /* Number of references */ + /* Total structure size should be a multiple of 8 bytes for alignment */ +}; /* ** A pointer to this structure is used to communicate information @@ -19129,7 +20063,7 @@ typedef struct { /* Tuning parameters are set using SQLITE_TESTCTRL_TUNE and are controlled ** on debug-builds of the CLI using ".testctrl tune ID VALUE". Tuning ** parameters are for temporary use during development, to help find -** optimial values for parameters in the query planner. The should not +** optimal values for parameters in the query planner. The should not ** be used on trunk check-ins. They are a temporary mechanism available ** for transient development builds only. ** @@ -19155,6 +20089,10 @@ struct Sqlite3Config { u8 bUseCis; /* Use covering indices for full-scans */ u8 bSmallMalloc; /* Avoid large memory allocations if true */ u8 bExtraSchemaChecks; /* Verify type,name,tbl_name in schema */ + u8 bUseLongDouble; /* Make use of long double */ +#ifdef SQLITE_DEBUG + u8 bJsonSelfcheck; /* Double-check JSON parsing */ +#endif int mxStrlen; /* Maximum string length */ int neverCorrupt; /* Database is always well-formed */ int szLookaside; /* Default lookaside buffer size */ @@ -19241,6 +20179,7 @@ struct Walker { void (*xSelectCallback2)(Walker*,Select*);/* Second callback for SELECTs */ int walkerDepth; /* Number of subqueries */ u16 eCode; /* A small processing code */ + u16 mWFlags; /* Use-dependent flags */ union { /* Extra data for callback */ NameContext *pNC; /* Naming context */ int n; /* A counter */ @@ -19250,15 +20189,16 @@ struct Walker { struct RefSrcList *pRefSrcList; /* sqlite3ReferencesSrcList() */ int *aiCol; /* array of column indexes */ struct IdxCover *pIdxCover; /* Check for index coverage */ - struct IdxExprTrans *pIdxTrans; /* Convert idxed expr to column */ ExprList *pGroupBy; /* GROUP BY clause */ Select *pSelect; /* HAVING to WHERE clause ctx */ struct WindowRewrite *pRewrite; /* Window rewrite context */ struct WhereConst *pConst; /* WHERE clause constants */ struct RenameCtx *pRename; /* RENAME COLUMN context */ struct Table *pTab; /* Table of generated column */ + struct CoveringIndexCheck *pCovIdxCk; /* Check for covering index */ SrcItem *pSrcItem; /* A single FROM clause item */ - DbFixer *pFix; + DbFixer *pFix; /* See sqlite3FixSelect() */ + Mem *aMem; /* See sqlite3BtreeCursorHint() */ } u; }; @@ -19279,6 +20219,7 @@ struct DbFixer { /* Forward declarations */ SQLITE_PRIVATE int sqlite3WalkExpr(Walker*, Expr*); +SQLITE_PRIVATE int sqlite3WalkExprNN(Walker*, Expr*); SQLITE_PRIVATE int sqlite3WalkExprList(Walker*, ExprList*); SQLITE_PRIVATE int sqlite3WalkSelect(Walker*, Select*); SQLITE_PRIVATE int sqlite3WalkSelectExpr(Walker*, Select*); @@ -19359,6 +20300,16 @@ struct CteUse { }; +/* Client data associated with sqlite3_set_clientdata() and +** sqlite3_get_clientdata(). +*/ +struct DbClientData { + DbClientData *pNext; /* Next in a linked list */ + void *pData; /* The data */ + void (*xDestructor)(void*); /* Destructor. Might be NULL */ + char zName[1]; /* Name of this client data. MUST BE LAST */ +}; + #ifdef SQLITE_DEBUG /* ** An instance of the TreeView object is used for printing the content of @@ -19408,7 +20359,7 @@ struct Window { Window **ppThis; /* Pointer to this object in Select.pWin list */ Window *pNextWin; /* Next window function belonging to this SELECT */ Expr *pFilter; /* The FILTER expression */ - FuncDef *pFunc; /* The function */ + FuncDef *pWFunc; /* The function */ int iEphCsr; /* Partition buffer or Peer buffer */ int regAccum; /* Accumulator */ int regResult; /* Interim result */ @@ -19528,6 +20479,8 @@ SQLITE_PRIVATE int sqlite3CorruptPgnoError(int,Pgno); # define sqlite3Isxdigit(x) (sqlite3CtypeMap[(unsigned char)(x)]&0x08) # define sqlite3Tolower(x) (sqlite3UpperToLower[(unsigned char)(x)]) # define sqlite3Isquote(x) (sqlite3CtypeMap[(unsigned char)(x)]&0x80) +# define sqlite3JsonId1(x) (sqlite3CtypeMap[(unsigned char)(x)]&0x42) +# define sqlite3JsonId2(x) (sqlite3CtypeMap[(unsigned char)(x)]&0x46) #else # define sqlite3Toupper(x) toupper((unsigned char)(x)) # define sqlite3Isspace(x) isspace((unsigned char)(x)) @@ -19537,6 +20490,8 @@ SQLITE_PRIVATE int sqlite3CorruptPgnoError(int,Pgno); # define sqlite3Isxdigit(x) isxdigit((unsigned char)(x)) # define sqlite3Tolower(x) tolower((unsigned char)(x)) # define sqlite3Isquote(x) ((x)=='"'||(x)=='\''||(x)=='['||(x)=='`') +# define sqlite3JsonId1(x) (sqlite3IsIdChar(x)&&(x)<'0') +# define sqlite3JsonId2(x) sqlite3IsIdChar(x) #endif SQLITE_PRIVATE int sqlite3IsIdChar(u8); @@ -19564,6 +20519,7 @@ SQLITE_PRIVATE void *sqlite3DbReallocOrFree(sqlite3 *, void *, u64); SQLITE_PRIVATE void *sqlite3DbRealloc(sqlite3 *, void *, u64); SQLITE_PRIVATE void sqlite3DbFree(sqlite3*, void*); SQLITE_PRIVATE void sqlite3DbFreeNN(sqlite3*, void*); +SQLITE_PRIVATE void sqlite3DbNNFreeNN(sqlite3*, void*); SQLITE_PRIVATE int sqlite3MallocSize(const void*); SQLITE_PRIVATE int sqlite3DbMallocSize(sqlite3*, const void*); SQLITE_PRIVATE void *sqlite3PageMalloc(int); @@ -19584,12 +20540,14 @@ SQLITE_PRIVATE int sqlite3HeapNearlyFull(void); */ #ifdef SQLITE_USE_ALLOCA # define sqlite3StackAllocRaw(D,N) alloca(N) -# define sqlite3StackAllocZero(D,N) memset(alloca(N), 0, N) +# define sqlite3StackAllocRawNN(D,N) alloca(N) # define sqlite3StackFree(D,P) +# define sqlite3StackFreeNN(D,P) #else # define sqlite3StackAllocRaw(D,N) sqlite3DbMallocRaw(D,N) -# define sqlite3StackAllocZero(D,N) sqlite3DbMallocZero(D,N) +# define sqlite3StackAllocRawNN(D,N) sqlite3DbMallocRawNN(D,N) # define sqlite3StackFree(D,P) sqlite3DbFree(D,P) +# define sqlite3StackFreeNN(D,P) sqlite3DbFreeNN(D,P) #endif /* Do not allow both MEMSYS5 and MEMSYS3 to be defined together. If they @@ -19653,6 +20611,20 @@ struct PrintfArguments { sqlite3_value **apArg; /* The argument values */ }; +/* +** An instance of this object receives the decoding of a floating point +** value into an approximate decimal representation. +*/ +struct FpDecode { + char sign; /* '+' or '-' */ + char isSpecial; /* 1: Infinity 2: NaN */ + int n; /* Significant digits in the decode */ + int iDP; /* Location of the decimal point */ + char *z; /* Start of significant digits */ + char zBuf[24]; /* Storage for significant digits */ +}; + +SQLITE_PRIVATE void sqlite3FpDecode(FpDecode*,double,int,int); SQLITE_PRIVATE char *sqlite3MPrintf(sqlite3*,const char*, ...); SQLITE_PRIVATE char *sqlite3VMPrintf(sqlite3*,const char*, va_list); #if defined(SQLITE_DEBUG) || defined(SQLITE_HAVE_OS_TRACE) @@ -19663,20 +20635,56 @@ SQLITE_PRIVATE void *sqlite3TestTextToPtr(const char*); #endif #if defined(SQLITE_DEBUG) +SQLITE_PRIVATE void sqlite3TreeViewLine(TreeView*, const char *zFormat, ...); SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView*, const Expr*, u8); SQLITE_PRIVATE void sqlite3TreeViewBareExprList(TreeView*, const ExprList*, const char*); SQLITE_PRIVATE void sqlite3TreeViewExprList(TreeView*, const ExprList*, u8, const char*); +SQLITE_PRIVATE void sqlite3TreeViewBareIdList(TreeView*, const IdList*, const char*); +SQLITE_PRIVATE void sqlite3TreeViewIdList(TreeView*, const IdList*, u8, const char*); +SQLITE_PRIVATE void sqlite3TreeViewColumnList(TreeView*, const Column*, int, u8); SQLITE_PRIVATE void sqlite3TreeViewSrcList(TreeView*, const SrcList*); SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView*, const Select*, u8); SQLITE_PRIVATE void sqlite3TreeViewWith(TreeView*, const With*, u8); +SQLITE_PRIVATE void sqlite3TreeViewUpsert(TreeView*, const Upsert*, u8); +#if TREETRACE_ENABLED +SQLITE_PRIVATE void sqlite3TreeViewDelete(const With*, const SrcList*, const Expr*, + const ExprList*,const Expr*, const Trigger*); +SQLITE_PRIVATE void sqlite3TreeViewInsert(const With*, const SrcList*, + const IdList*, const Select*, const ExprList*, + int, const Upsert*, const Trigger*); +SQLITE_PRIVATE void sqlite3TreeViewUpdate(const With*, const SrcList*, const ExprList*, + const Expr*, int, const ExprList*, const Expr*, + const Upsert*, const Trigger*); +#endif +#ifndef SQLITE_OMIT_TRIGGER +SQLITE_PRIVATE void sqlite3TreeViewTriggerStep(TreeView*, const TriggerStep*, u8, u8); +SQLITE_PRIVATE void sqlite3TreeViewTrigger(TreeView*, const Trigger*, u8, u8); +#endif #ifndef SQLITE_OMIT_WINDOWFUNC SQLITE_PRIVATE void sqlite3TreeViewWindow(TreeView*, const Window*, u8); SQLITE_PRIVATE void sqlite3TreeViewWinFunc(TreeView*, const Window*, u8); #endif +SQLITE_PRIVATE void sqlite3ShowExpr(const Expr*); +SQLITE_PRIVATE void sqlite3ShowExprList(const ExprList*); +SQLITE_PRIVATE void sqlite3ShowIdList(const IdList*); +SQLITE_PRIVATE void sqlite3ShowSrcList(const SrcList*); +SQLITE_PRIVATE void sqlite3ShowSelect(const Select*); +SQLITE_PRIVATE void sqlite3ShowWith(const With*); +SQLITE_PRIVATE void sqlite3ShowUpsert(const Upsert*); +#ifndef SQLITE_OMIT_TRIGGER +SQLITE_PRIVATE void sqlite3ShowTriggerStep(const TriggerStep*); +SQLITE_PRIVATE void sqlite3ShowTriggerStepList(const TriggerStep*); +SQLITE_PRIVATE void sqlite3ShowTrigger(const Trigger*); +SQLITE_PRIVATE void sqlite3ShowTriggerList(const Trigger*); +#endif +#ifndef SQLITE_OMIT_WINDOWFUNC +SQLITE_PRIVATE void sqlite3ShowWindow(const Window*); +SQLITE_PRIVATE void sqlite3ShowWinFunc(const Window*); +#endif #endif - SQLITE_PRIVATE void sqlite3SetString(char **, sqlite3*, const char*); +SQLITE_PRIVATE void sqlite3ProgressCheck(Parse*); SQLITE_PRIVATE void sqlite3ErrorMsg(Parse*, const char*, ...); SQLITE_PRIVATE int sqlite3ErrorToParser(sqlite3*,int); SQLITE_PRIVATE void sqlite3Dequote(char*); @@ -19691,6 +20699,10 @@ SQLITE_PRIVATE void sqlite3ReleaseTempReg(Parse*,int); SQLITE_PRIVATE int sqlite3GetTempRange(Parse*,int); SQLITE_PRIVATE void sqlite3ReleaseTempRange(Parse*,int,int); SQLITE_PRIVATE void sqlite3ClearTempRegCache(Parse*); +SQLITE_PRIVATE void sqlite3TouchRegister(Parse*,int); +#if defined(SQLITE_ENABLE_STAT4) || defined(SQLITE_DEBUG) +SQLITE_PRIVATE int sqlite3FirstAvailableRegister(Parse*,int); +#endif #ifdef SQLITE_DEBUG SQLITE_PRIVATE int sqlite3NoTempsInRange(Parse*,int,int); #endif @@ -19702,9 +20714,12 @@ SQLITE_PRIVATE void sqlite3PExprAddSelect(Parse*, Expr*, Select*); SQLITE_PRIVATE Expr *sqlite3ExprAnd(Parse*,Expr*, Expr*); SQLITE_PRIVATE Expr *sqlite3ExprSimplifiedAndOr(Expr*); SQLITE_PRIVATE Expr *sqlite3ExprFunction(Parse*,ExprList*, const Token*, int); +SQLITE_PRIVATE void sqlite3ExprAddFunctionOrderBy(Parse*,Expr*,ExprList*); +SQLITE_PRIVATE void sqlite3ExprOrderByAggregateError(Parse*,Expr*); SQLITE_PRIVATE void sqlite3ExprFunctionUsable(Parse*,const Expr*,const FuncDef*); SQLITE_PRIVATE void sqlite3ExprAssignVarNumber(Parse*, Expr*, u32); SQLITE_PRIVATE void sqlite3ExprDelete(sqlite3*, Expr*); +SQLITE_PRIVATE void sqlite3ExprDeleteGeneric(sqlite3*,void*); SQLITE_PRIVATE void sqlite3ExprDeferredDelete(Parse*, Expr*); SQLITE_PRIVATE void sqlite3ExprUnmapAndDelete(Parse*, Expr*); SQLITE_PRIVATE ExprList *sqlite3ExprListAppend(Parse*,ExprList*,Expr*); @@ -19714,6 +20729,7 @@ SQLITE_PRIVATE void sqlite3ExprListSetSortOrder(ExprList*,int,int); SQLITE_PRIVATE void sqlite3ExprListSetName(Parse*,ExprList*,const Token*,int); SQLITE_PRIVATE void sqlite3ExprListSetSpan(Parse*,ExprList*,const char*,const char*); SQLITE_PRIVATE void sqlite3ExprListDelete(sqlite3*, ExprList*); +SQLITE_PRIVATE void sqlite3ExprListDeleteGeneric(sqlite3*,void*); SQLITE_PRIVATE u32 sqlite3ExprListFlags(const ExprList*); SQLITE_PRIVATE int sqlite3IndexHasDuplicateRootPage(Index*); SQLITE_PRIVATE int sqlite3Init(sqlite3*, char**); @@ -19734,7 +20750,7 @@ SQLITE_PRIVATE const char *sqlite3ColumnColl(Column*); SQLITE_PRIVATE void sqlite3DeleteColumnNames(sqlite3*,Table*); SQLITE_PRIVATE void sqlite3GenerateColumnNames(Parse *pParse, Select *pSelect); SQLITE_PRIVATE int sqlite3ColumnsFromExprList(Parse*,ExprList*,i16*,Column**); -SQLITE_PRIVATE void sqlite3SelectAddColumnTypeAndCollation(Parse*,Table*,Select*,char); +SQLITE_PRIVATE void sqlite3SubqueryColumnTypes(Parse*,Table*,Select*,char); SQLITE_PRIVATE Table *sqlite3ResultSetOfSelect(Parse*,Select*,char); SQLITE_PRIVATE void sqlite3OpenSchemaTable(Parse *, int); SQLITE_PRIVATE Index *sqlite3PrimaryKeyIndex(Table*); @@ -19804,6 +20820,7 @@ SQLITE_PRIVATE int sqlite3DbMaskAllZero(yDbMask); SQLITE_PRIVATE void sqlite3DropTable(Parse*, SrcList*, int, int); SQLITE_PRIVATE void sqlite3CodeDropTable(Parse*, Table*, int, int); SQLITE_PRIVATE void sqlite3DeleteTable(sqlite3*, Table*); +SQLITE_PRIVATE void sqlite3DeleteTableGeneric(sqlite3*, void*); SQLITE_PRIVATE void sqlite3FreeIndex(sqlite3*, Index*); #ifndef SQLITE_OMIT_AUTOINCREMENT SQLITE_PRIVATE void sqlite3AutoincrementBegin(Parse *pParse); @@ -19823,13 +20840,14 @@ SQLITE_PRIVATE SrcList *sqlite3SrcListEnlarge(Parse*, SrcList*, int, int); SQLITE_PRIVATE SrcList *sqlite3SrcListAppendList(Parse *pParse, SrcList *p1, SrcList *p2); SQLITE_PRIVATE SrcList *sqlite3SrcListAppend(Parse*, SrcList*, Token*, Token*); SQLITE_PRIVATE SrcList *sqlite3SrcListAppendFromTerm(Parse*, SrcList*, Token*, Token*, - Token*, Select*, Expr*, IdList*); + Token*, Select*, OnOrUsing*); SQLITE_PRIVATE void sqlite3SrcListIndexedBy(Parse *, SrcList *, Token *); SQLITE_PRIVATE void sqlite3SrcListFuncArgs(Parse*, SrcList*, ExprList*); SQLITE_PRIVATE int sqlite3IndexedByLookup(Parse *, SrcItem *); -SQLITE_PRIVATE void sqlite3SrcListShiftJoinType(SrcList*); +SQLITE_PRIVATE void sqlite3SrcListShiftJoinType(Parse*,SrcList*); SQLITE_PRIVATE void sqlite3SrcListAssignCursors(Parse*, SrcList*); SQLITE_PRIVATE void sqlite3IdListDelete(sqlite3*, IdList*); +SQLITE_PRIVATE void sqlite3ClearOnOrUsing(sqlite3*, OnOrUsing*); SQLITE_PRIVATE void sqlite3SrcListDelete(sqlite3*, SrcList*); SQLITE_PRIVATE Index *sqlite3AllocateIndexObject(sqlite3*,i16,int,char**); SQLITE_PRIVATE void sqlite3CreateIndex(Parse*,Token*,Token*,SrcList*,ExprList*,int,Token*, @@ -19839,8 +20857,9 @@ SQLITE_PRIVATE int sqlite3Select(Parse*, Select*, SelectDest*); SQLITE_PRIVATE Select *sqlite3SelectNew(Parse*,ExprList*,SrcList*,Expr*,ExprList*, Expr*,ExprList*,u32,Expr*); SQLITE_PRIVATE void sqlite3SelectDelete(sqlite3*, Select*); +SQLITE_PRIVATE void sqlite3SelectDeleteGeneric(sqlite3*,void*); SQLITE_PRIVATE Table *sqlite3SrcListLookup(Parse*, SrcList*); -SQLITE_PRIVATE int sqlite3IsReadOnly(Parse*, Table*, int); +SQLITE_PRIVATE int sqlite3IsReadOnly(Parse*, Table*, Trigger*); SQLITE_PRIVATE void sqlite3OpenTable(Parse*, int iCur, int iDb, Table*, int); #if defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !defined(SQLITE_OMIT_SUBQUERY) SQLITE_PRIVATE Expr *sqlite3LimitWhere(Parse*,SrcList*,Expr*,ExprList*,Expr*,char*); @@ -19902,7 +20921,7 @@ SQLITE_PRIVATE int sqlite3ExprCompare(const Parse*,const Expr*,const Expr*, int) SQLITE_PRIVATE int sqlite3ExprCompareSkip(Expr*,Expr*,int); SQLITE_PRIVATE int sqlite3ExprListCompare(const ExprList*,const ExprList*, int); SQLITE_PRIVATE int sqlite3ExprImpliesExpr(const Parse*,const Expr*,const Expr*, int); -SQLITE_PRIVATE int sqlite3ExprImpliesNonNullRow(Expr*,int); +SQLITE_PRIVATE int sqlite3ExprImpliesNonNullRow(Expr*,int,int); SQLITE_PRIVATE void sqlite3AggInfoPersistWalkerInit(Walker*,Parse*); SQLITE_PRIVATE void sqlite3ExprAnalyzeAggregates(NameContext*, Expr*); SQLITE_PRIVATE void sqlite3ExprAnalyzeAggList(NameContext*,ExprList*); @@ -19929,7 +20948,7 @@ SQLITE_PRIVATE int sqlite3ExprIsConstantNotJoin(Expr*); SQLITE_PRIVATE int sqlite3ExprIsConstantOrFunction(Expr*, u8); SQLITE_PRIVATE int sqlite3ExprIsConstantOrGroupBy(Parse*, Expr*, ExprList*); SQLITE_PRIVATE int sqlite3ExprIsTableConstant(Expr*,int); -SQLITE_PRIVATE int sqlite3ExprIsTableConstraint(Expr*,const SrcItem*); +SQLITE_PRIVATE int sqlite3ExprIsSingleTableConstraint(Expr*,const SrcList*,int); #ifdef SQLITE_ENABLE_CURSOR_HINTS SQLITE_PRIVATE int sqlite3ExprContainsSubquery(Expr*); #endif @@ -19937,6 +20956,7 @@ SQLITE_PRIVATE int sqlite3ExprIsInteger(const Expr*, int*); SQLITE_PRIVATE int sqlite3ExprCanBeNull(const Expr*); SQLITE_PRIVATE int sqlite3ExprNeedsNoAffinityChange(const Expr*, char); SQLITE_PRIVATE int sqlite3IsRowid(const char*); +SQLITE_PRIVATE const char *sqlite3RowidAlias(Table *pTab); SQLITE_PRIVATE void sqlite3GenerateRowDelete( Parse*,Table*,Trigger*,int,int,int,i16,u8,u8,u8,int); SQLITE_PRIVATE void sqlite3GenerateRowIndexDelete(Parse*, Table*, int, int, int*, int); @@ -20027,7 +21047,8 @@ SQLITE_PRIVATE SrcList *sqlite3TriggerStepSrc(Parse*, TriggerStep*); SQLITE_PRIVATE int sqlite3JoinType(Parse*, Token*, Token*, Token*); SQLITE_PRIVATE int sqlite3ColumnIndex(Table *pTab, const char *zCol); -SQLITE_PRIVATE void sqlite3SetJoinExpr(Expr*,int); +SQLITE_PRIVATE void sqlite3SrcItemColumnUsed(SrcItem*,int); +SQLITE_PRIVATE void sqlite3SetJoinExpr(Expr*,int,u32); SQLITE_PRIVATE void sqlite3CreateForeignKey(Parse*, ExprList*, Token*, ExprList*, int); SQLITE_PRIVATE void sqlite3DeferForeignKey(Parse*, int); #ifndef SQLITE_OMIT_AUTHORIZATION @@ -20050,8 +21071,10 @@ SQLITE_PRIVATE int sqlite3FixSrcList(DbFixer*, SrcList*); SQLITE_PRIVATE int sqlite3FixSelect(DbFixer*, Select*); SQLITE_PRIVATE int sqlite3FixExpr(DbFixer*, Expr*); SQLITE_PRIVATE int sqlite3FixTriggerStep(DbFixer*, TriggerStep*); + SQLITE_PRIVATE int sqlite3RealSameAsInt(double,sqlite3_int64); -SQLITE_PRIVATE void sqlite3Int64ToText(i64,char*); +SQLITE_PRIVATE i64 sqlite3RealToI64(double); +SQLITE_PRIVATE int sqlite3Int64ToText(i64,char*); SQLITE_PRIVATE int sqlite3AtoF(const char *z, double*, int, u8); SQLITE_PRIVATE int sqlite3GetInt32(const char *, int*); SQLITE_PRIVATE int sqlite3GetUInt32(const char*, u32*); @@ -20061,6 +21084,7 @@ SQLITE_PRIVATE int sqlite3Utf16ByteLen(const void *pData, int nChar); #endif SQLITE_PRIVATE int sqlite3Utf8CharLen(const char *pData, int nByte); SQLITE_PRIVATE u32 sqlite3Utf8Read(const u8**); +SQLITE_PRIVATE int sqlite3Utf8ReadLimited(const u8*, int, u32*); SQLITE_PRIVATE LogEst sqlite3LogEst(u64); SQLITE_PRIVATE LogEst sqlite3LogEstAdd(LogEst,LogEst); SQLITE_PRIVATE LogEst sqlite3LogEstFromDouble(double); @@ -20096,11 +21120,13 @@ SQLITE_PRIVATE int sqlite3VarintLen(u64 v); SQLITE_PRIVATE const char *sqlite3IndexAffinityStr(sqlite3*, Index*); +SQLITE_PRIVATE char *sqlite3TableAffinityStr(sqlite3*,const Table*); SQLITE_PRIVATE void sqlite3TableAffinity(Vdbe*, Table*, int); SQLITE_PRIVATE char sqlite3CompareAffinity(const Expr *pExpr, char aff2); SQLITE_PRIVATE int sqlite3IndexAffinityOk(const Expr *pExpr, char idx_affinity); SQLITE_PRIVATE char sqlite3TableColumnAffinity(const Table*,int); SQLITE_PRIVATE char sqlite3ExprAffinity(const Expr *pExpr); +SQLITE_PRIVATE int sqlite3ExprDataType(const Expr *pExpr); SQLITE_PRIVATE int sqlite3Atoi64(const char*, i64*, int, u8); SQLITE_PRIVATE int sqlite3DecOrHexToI64(const char*, i64*); SQLITE_PRIVATE void sqlite3ErrorWithMsg(sqlite3*, int, const char*,...); @@ -20117,6 +21143,9 @@ SQLITE_PRIVATE const char *sqlite3ErrName(int); #ifndef SQLITE_OMIT_DESERIALIZE SQLITE_PRIVATE int sqlite3MemdbInit(void); +SQLITE_PRIVATE int sqlite3IsMemdb(const sqlite3_vfs*); +#else +# define sqlite3IsMemdb(X) 0 #endif SQLITE_PRIVATE const char *sqlite3ErrStr(int); @@ -20148,6 +21177,7 @@ SQLITE_PRIVATE void sqlite3FileSuffix3(const char*, char*); SQLITE_PRIVATE u8 sqlite3GetBoolean(const char *z,u8); SQLITE_PRIVATE const void *sqlite3ValueText(sqlite3_value*, u8); +SQLITE_PRIVATE int sqlite3ValueIsOfClass(const sqlite3_value*, void(*)(void*)); SQLITE_PRIVATE int sqlite3ValueBytes(sqlite3_value*, u8); SQLITE_PRIVATE void sqlite3ValueSetStr(sqlite3_value*, int, const void *,u8, void(*)(void*)); @@ -20167,7 +21197,6 @@ SQLITE_PRIVATE const unsigned char sqlite3OpcodeProperty[]; SQLITE_PRIVATE const char sqlite3StrBINARY[]; SQLITE_PRIVATE const unsigned char sqlite3StdTypeLen[]; SQLITE_PRIVATE const char sqlite3StdTypeAffinity[]; -SQLITE_PRIVATE const char sqlite3StdTypeMap[]; SQLITE_PRIVATE const char *sqlite3StdType[]; SQLITE_PRIVATE const unsigned char sqlite3UpperToLower[]; SQLITE_PRIVATE const unsigned char *sqlite3aLTb; @@ -20200,7 +21229,8 @@ SQLITE_PRIVATE int sqlite3MatchEName( const struct ExprList_item*, const char*, const char*, - const char* + const char*, + int* ); SQLITE_PRIVATE Bitmask sqlite3ExprColUsed(Expr*); SQLITE_PRIVATE u8 sqlite3StrIHash(const char*); @@ -20256,8 +21286,13 @@ SQLITE_PRIVATE void sqlite3OomClear(sqlite3*); SQLITE_PRIVATE int sqlite3ApiExit(sqlite3 *db, int); SQLITE_PRIVATE int sqlite3OpenTempDatabase(Parse *); +SQLITE_PRIVATE char *sqlite3RCStrRef(char*); +SQLITE_PRIVATE void sqlite3RCStrUnref(void*); +SQLITE_PRIVATE char *sqlite3RCStrNew(u64); +SQLITE_PRIVATE char *sqlite3RCStrResize(char*,u64); + SQLITE_PRIVATE void sqlite3StrAccumInit(StrAccum*, sqlite3*, char*, int, int); -SQLITE_PRIVATE int sqlite3StrAccumEnlarge(StrAccum*, int); +SQLITE_PRIVATE int sqlite3StrAccumEnlarge(StrAccum*, i64); SQLITE_PRIVATE char *sqlite3StrAccumFinish(StrAccum*); SQLITE_PRIVATE void sqlite3StrAccumSetError(StrAccum*, u8); SQLITE_PRIVATE void sqlite3ResultStrAccum(sqlite3_context*,StrAccum*); @@ -20371,10 +21406,7 @@ SQLITE_PRIVATE int sqlite3VtabCallDestroy(sqlite3*, int, const char *); SQLITE_PRIVATE int sqlite3VtabBegin(sqlite3 *, VTable *); SQLITE_PRIVATE FuncDef *sqlite3VtabOverloadFunction(sqlite3 *,FuncDef*, int nArg, Expr*); -#if (defined(SQLITE_ENABLE_DBPAGE_VTAB) || defined(SQLITE_TEST)) \ - && !defined(SQLITE_OMIT_VIRTUALTABLE) -SQLITE_PRIVATE void sqlite3VtabWriteAll(sqlite3_index_info*); -#endif +SQLITE_PRIVATE void sqlite3VtabUsesAllSchemas(Parse*); SQLITE_PRIVATE sqlite3_int64 sqlite3StmtCurrentTime(sqlite3_context*); SQLITE_PRIVATE int sqlite3VdbeParameterIndex(Vdbe*, const char*, int); SQLITE_PRIVATE int sqlite3TransferBindings(sqlite3_stmt *, sqlite3_stmt *); @@ -20399,6 +21431,7 @@ SQLITE_PRIVATE Cte *sqlite3CteNew(Parse*,Token*,ExprList*,Select*,u8); SQLITE_PRIVATE void sqlite3CteDelete(sqlite3*,Cte*); SQLITE_PRIVATE With *sqlite3WithAdd(Parse*,With*,Cte*); SQLITE_PRIVATE void sqlite3WithDelete(sqlite3*,With*); +SQLITE_PRIVATE void sqlite3WithDeleteGeneric(sqlite3*,void*); SQLITE_PRIVATE With *sqlite3WithPush(Parse*, With*, u8); #else # define sqlite3CteNew(P,T,E,S) ((void*)0) @@ -20510,6 +21543,7 @@ SQLITE_PRIVATE int sqlite3ExprCheckHeight(Parse*, int); #define sqlite3SelectExprHeight(x) 0 #define sqlite3ExprCheckHeight(x,y) #endif +SQLITE_PRIVATE void sqlite3ExprSetErrorOffset(Expr*,int); SQLITE_PRIVATE u32 sqlite3Get4byte(const u8*); SQLITE_PRIVATE void sqlite3Put4byte(u8*, u32); @@ -20611,6 +21645,22 @@ SQLITE_PRIVATE void sqlite3VectorErrorMsg(Parse*, Expr*); SQLITE_PRIVATE const char **sqlite3CompileOptions(int *pnOpt); #endif +#if SQLITE_OS_UNIX && defined(SQLITE_OS_KV_OPTIONAL) +SQLITE_PRIVATE int sqlite3KvvfsInit(void); +#endif + +#if defined(VDBE_PROFILE) \ + || defined(SQLITE_PERFORMANCE_TRACE) \ + || defined(SQLITE_ENABLE_STMT_SCANSTATUS) +SQLITE_PRIVATE sqlite3_uint64 sqlite3Hwtime(void); +#endif + +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS +# define IS_STMT_SCANSTATUS(db) (db->flags & SQLITE_StmtScanStatus) +#else +# define IS_STMT_SCANSTATUS(db) 0 +#endif + #endif /* SQLITEINT_H */ /************** End of sqliteInt.h *******************************************/ @@ -20652,101 +21702,6 @@ SQLITE_PRIVATE const char **sqlite3CompileOptions(int *pnOpt); */ #ifdef SQLITE_PERFORMANCE_TRACE -/* -** hwtime.h contains inline assembler code for implementing -** high-performance timing routines. -*/ -/************** Include hwtime.h in the middle of os_common.h ****************/ -/************** Begin file hwtime.h ******************************************/ -/* -** 2008 May 27 -** -** The author disclaims copyright to this source code. In place of -** a legal notice, here is a blessing: -** -** May you do good and not evil. -** May you find forgiveness for yourself and forgive others. -** May you share freely, never taking more than you give. -** -****************************************************************************** -** -** This file contains inline asm code for retrieving "high-performance" -** counters for x86 and x86_64 class CPUs. -*/ -#ifndef SQLITE_HWTIME_H -#define SQLITE_HWTIME_H - -/* -** The following routine only works on pentium-class (or newer) processors. -** It uses the RDTSC opcode to read the cycle count value out of the -** processor and returns that value. This can be used for high-res -** profiling. -*/ -#if !defined(__STRICT_ANSI__) && \ - (defined(__GNUC__) || defined(_MSC_VER)) && \ - (defined(i386) || defined(__i386__) || defined(_M_IX86)) - - #if defined(__GNUC__) - - __inline__ sqlite_uint64 sqlite3Hwtime(void){ - unsigned int lo, hi; - __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi)); - return (sqlite_uint64)hi << 32 | lo; - } - - #elif defined(_MSC_VER) - - __declspec(naked) __inline sqlite_uint64 __cdecl sqlite3Hwtime(void){ - __asm { - rdtsc - ret ; return value at EDX:EAX - } - } - - #endif - -#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__x86_64__)) - - __inline__ sqlite_uint64 sqlite3Hwtime(void){ - unsigned long val; - __asm__ __volatile__ ("rdtsc" : "=A" (val)); - return val; - } - -#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__ppc__)) - - __inline__ sqlite_uint64 sqlite3Hwtime(void){ - unsigned long long retval; - unsigned long junk; - __asm__ __volatile__ ("\n\ - 1: mftbu %1\n\ - mftb %L0\n\ - mftbu %0\n\ - cmpw %0,%1\n\ - bne 1b" - : "=r" (retval), "=r" (junk)); - return retval; - } - -#else - - /* - ** asm() is needed for hardware timing support. Without asm(), - ** disable the sqlite3Hwtime() routine. - ** - ** sqlite3Hwtime() is only used for some obscure debugging - ** and analysis configurations, not in any deliverable, so this - ** should not be a great loss. - */ -SQLITE_PRIVATE sqlite_uint64 sqlite3Hwtime(void){ return ((sqlite_uint64)0); } - -#endif - -#endif /* !defined(SQLITE_HWTIME_H) */ - -/************** End of hwtime.h **********************************************/ -/************** Continuing where we left off in os_common.h ******************/ - static sqlite_uint64 g_start; static sqlite_uint64 g_elapsed; #define TIMER_START g_start=sqlite3Hwtime() @@ -20842,7 +21797,7 @@ SQLITE_API extern int sqlite3_open_file_count; ** autoconf-based build */ #if defined(_HAVE_SQLITE_CONFIG_H) && !defined(SQLITECONFIG_H) -/* #include "config.h" */ +/* #include "sqlite_cfg.h" */ #define SQLITECONFIG_H 1 #endif @@ -20874,9 +21829,6 @@ static const char * const sqlite3azCompileOpt[] = { #ifdef SQLITE_4_BYTE_ALIGNED_MALLOC "4_BYTE_ALIGNED_MALLOC", #endif -#ifdef SQLITE_64BIT_STATS - "64BIT_STATS", -#endif #ifdef SQLITE_ALLOW_COVERING_INDEX_SCAN # if SQLITE_ALLOW_COVERING_INDEX_SCAN != 1 "ALLOW_COVERING_INDEX_SCAN=" CTIMEOPT_VAL(SQLITE_ALLOW_COVERING_INDEX_SCAN), @@ -21007,6 +21959,9 @@ static const char * const sqlite3azCompileOpt[] = { #ifdef SQLITE_DISABLE_SKIPAHEAD_DISTINCT "DISABLE_SKIPAHEAD_DISTINCT", #endif +#ifdef SQLITE_DQS + "DQS=" CTIMEOPT_VAL(SQLITE_DQS), +#endif #ifdef SQLITE_ENABLE_8_3_NAMES "ENABLE_8_3_NAMES=" CTIMEOPT_VAL(SQLITE_ENABLE_8_3_NAMES), #endif @@ -21121,9 +22076,6 @@ static const char * const sqlite3azCompileOpt[] = { #ifdef SQLITE_ENABLE_RTREE "ENABLE_RTREE", #endif -#ifdef SQLITE_ENABLE_SELECTTRACE - "ENABLE_SELECTTRACE", -#endif #ifdef SQLITE_ENABLE_SESSION "ENABLE_SESSION", #endif @@ -21145,6 +22097,9 @@ static const char * const sqlite3azCompileOpt[] = { #ifdef SQLITE_ENABLE_STMT_SCANSTATUS "ENABLE_STMT_SCANSTATUS", #endif +#ifdef SQLITE_ENABLE_TREETRACE + "ENABLE_TREETRACE", +#endif #ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION "ENABLE_UNKNOWN_SQL_FUNCTION", #endif @@ -21169,6 +22124,9 @@ static const char * const sqlite3azCompileOpt[] = { #ifdef SQLITE_EXPLAIN_ESTIMATED_ROWS "EXPLAIN_ESTIMATED_ROWS", #endif +#ifdef SQLITE_EXTRA_AUTOEXT + "EXTRA_AUTOEXT=" CTIMEOPT_VAL(SQLITE_EXTRA_AUTOEXT), +#endif #ifdef SQLITE_EXTRA_IFNULLROW "EXTRA_IFNULLROW", #endif @@ -21210,6 +22168,9 @@ static const char * const sqlite3azCompileOpt[] = { #ifdef SQLITE_INTEGRITY_CHECK_ERROR_MAX "INTEGRITY_CHECK_ERROR_MAX=" CTIMEOPT_VAL(SQLITE_INTEGRITY_CHECK_ERROR_MAX), #endif +#ifdef SQLITE_LEGACY_JSON_VALID + "LEGACY_JSON_VALID", +#endif #ifdef SQLITE_LIKE_DOESNT_MATCH_BLOBS "LIKE_DOESNT_MATCH_BLOBS", #endif @@ -21447,6 +22408,9 @@ static const char * const sqlite3azCompileOpt[] = { #ifdef SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS "OMIT_SCHEMA_VERSION_PRAGMAS", #endif +#ifdef SQLITE_OMIT_SEH + "OMIT_SEH", +#endif #ifdef SQLITE_OMIT_SHARED_CACHE "OMIT_SHARED_CACHE", #endif @@ -21497,9 +22461,6 @@ static const char * const sqlite3azCompileOpt[] = { #ifdef SQLITE_OMIT_XFER_OPT "OMIT_XFER_OPT", #endif -#ifdef SQLITE_PCACHE_SEPARATE_HEADER - "PCACHE_SEPARATE_HEADER", -#endif #ifdef SQLITE_PERFORMANCE_TRACE "PERFORMANCE_TRACE", #endif @@ -21701,7 +22662,7 @@ SQLITE_PRIVATE const unsigned char *sqlite3aGTb = &sqlite3UpperToLower[256+12-OP ** isalnum() 0x06 ** isxdigit() 0x08 ** toupper() 0x20 -** SQLite identifier character 0x40 +** SQLite identifier character 0x40 $, _, or non-ascii ** Quote character 0x80 ** ** Bit 0x20 is set if the mapped character requires translation to upper @@ -21847,6 +22808,10 @@ SQLITE_PRIVATE SQLITE_WSD struct Sqlite3Config sqlite3Config = { SQLITE_ALLOW_COVERING_INDEX_SCAN, /* bUseCis */ 0, /* bSmallMalloc */ 1, /* bExtraSchemaChecks */ + sizeof(LONGDOUBLE_TYPE)>8, /* bUseLongDouble */ +#ifdef SQLITE_DEBUG + 0, /* bJsonSelfcheck */ +#endif 0x7ffffffe, /* mxStrlen */ 0, /* neverCorrupt */ SQLITE_DEFAULT_LOOKASIDE, /* szLookaside, nLookaside */ @@ -21894,6 +22859,9 @@ SQLITE_PRIVATE SQLITE_WSD struct Sqlite3Config sqlite3Config = { 0x7ffffffe, /* iOnceResetThreshold */ SQLITE_DEFAULT_SORTERREF_SIZE, /* szSorterRef */ 0, /* iPrngSeed */ +#ifdef SQLITE_DEBUG + {0,0,0,0,0,0}, /* aTune */ +#endif }; /* @@ -21948,7 +22916,7 @@ SQLITE_PRIVATE int sqlite3PendingByte = 0x40000000; /* ** Tracing flags set by SQLITE_TESTCTRL_TRACEFLAGS. */ -SQLITE_PRIVATE u32 sqlite3SelectTrace = 0; +SQLITE_PRIVATE u32 sqlite3TreeTrace = 0; SQLITE_PRIVATE u32 sqlite3WhereTrace = 0; /* #include "opcodes.h" */ @@ -21976,10 +22944,6 @@ SQLITE_PRIVATE const char sqlite3StrBINARY[] = "BINARY"; ** ** sqlite3StdTypeAffinity[] The affinity associated with each entry ** in sqlite3StdType[]. -** -** sqlite3StdTypeMap[] The type value (as returned from -** sqlite3_column_type() or sqlite3_value_type()) -** for each entry in sqlite3StdType[]. */ SQLITE_PRIVATE const unsigned char sqlite3StdTypeLen[] = { 3, 4, 3, 7, 4, 4 }; SQLITE_PRIVATE const char sqlite3StdTypeAffinity[] = { @@ -21990,14 +22954,6 @@ SQLITE_PRIVATE const char sqlite3StdTypeAffinity[] = { SQLITE_AFF_REAL, SQLITE_AFF_TEXT }; -SQLITE_PRIVATE const char sqlite3StdTypeMap[] = { - 0, - SQLITE_BLOB, - SQLITE_INTEGER, - SQLITE_INTEGER, - SQLITE_FLOAT, - SQLITE_TEXT -}; SQLITE_PRIVATE const char *sqlite3StdType[] = { "ANY", "BLOB", @@ -22085,6 +23041,9 @@ typedef struct VdbeSorter VdbeSorter; /* Elements of the linked list at Vdbe.pAuxData */ typedef struct AuxData AuxData; +/* A cache of large TEXT or BLOB values in a VdbeCursor */ +typedef struct VdbeTxtBlbCache VdbeTxtBlbCache; + /* Types of VDBE cursors */ #define CURTYPE_BTREE 0 #define CURTYPE_SORTER 1 @@ -22115,7 +23074,8 @@ struct VdbeCursor { Bool isEphemeral:1; /* True for an ephemeral table */ Bool useRandomRowid:1; /* Generate new record numbers semi-randomly */ Bool isOrdered:1; /* True if the table is not BTREE_UNORDERED */ - Bool hasBeenDuped:1; /* This cursor was source or target of OP_OpenDup */ + Bool noReuse:1; /* OpenEphemeral may not reuse this cursor */ + Bool colCache:1; /* pCache pointer is initialized and non-NULL */ u16 seekHit; /* See the OP_SeekHit and OP_IfNoHope opcodes */ union { /* pBtx for isEphermeral. pAltMap otherwise */ Btree *pBtx; /* Separate file holding temporary table */ @@ -22156,6 +23116,7 @@ struct VdbeCursor { #ifdef SQLITE_ENABLE_COLUMN_USED_MASK u64 maskUsed; /* Mask of columns used by this cursor */ #endif + VdbeTxtBlbCache *pCache; /* Cache of large TEXT or BLOB values */ /* 2*nField extra array elements allocated for aType[], beyond the one ** static element declared in the structure. nField total array slots for @@ -22163,6 +23124,10 @@ struct VdbeCursor { u32 aType[1]; /* Type values record decode. MUST BE LAST */ }; +/* Return true if P is a null-only cursor +*/ +#define IsNullCursor(P) \ + ((P)->eCurType==CURTYPE_PSEUDO && (P)->nullRow && (P)->seekResult==0) /* ** A value for VdbeCursor.cacheStatus that means the cache is always invalid. @@ -22170,6 +23135,20 @@ struct VdbeCursor { #define CACHE_STALE 0 /* +** Large TEXT or BLOB values can be slow to load, so we want to avoid +** loading them more than once. For that reason, large TEXT and BLOB values +** can be stored in a cache defined by this object, and attached to the +** VdbeCursor using the pCache field. +*/ +struct VdbeTxtBlbCache { + char *pCValue; /* A RCStr buffer to hold the value */ + i64 iOffset; /* File offset of the row being cached */ + int iCol; /* Column for which the cache is valid */ + u32 cacheStatus; /* Vdbe.cacheCtr value */ + u32 colCacheCtr; /* Column cache counter */ +}; + +/* ** When a sub-program is executed (OP_Program), a structure of this type ** is allocated to store the current value of the program counter, as ** well as the current memory cell array and various other frame specific @@ -22195,7 +23174,6 @@ struct VdbeFrame { Vdbe *v; /* VM this frame belongs to */ VdbeFrame *pParent; /* Parent of this frame, or NULL if parent is main */ Op *aOp; /* Program instructions for parent frame */ - i64 *anExec; /* Event counters from parent frame */ Mem *aMem; /* Array of memory cells for parent frame */ VdbeCursor **apCsr; /* Array of Vdbe cursors for parent frame */ u8 *aOnce; /* Bitmask used by OP_Once */ @@ -22237,16 +23215,16 @@ struct sqlite3_value { const char *zPType; /* Pointer type when MEM_Term|MEM_Subtype|MEM_Null */ FuncDef *pDef; /* Used only when flags==MEM_Agg */ } u; + char *z; /* String or BLOB value */ + int n; /* Number of characters in string value, excluding '\0' */ u16 flags; /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */ u8 enc; /* SQLITE_UTF8, SQLITE_UTF16BE, SQLITE_UTF16LE */ u8 eSubtype; /* Subtype for this value */ - int n; /* Number of characters in string value, excluding '\0' */ - char *z; /* String or BLOB value */ /* ShallowCopy only needs to copy the information above */ - char *zMalloc; /* Space to hold MEM_Str or MEM_Blob if szMalloc>0 */ + sqlite3 *db; /* The associated database connection */ int szMalloc; /* Size of the zMalloc allocation */ u32 uTemp; /* Transient storage for serial_type in OP_MakeRecord */ - sqlite3 *db; /* The associated database connection */ + char *zMalloc; /* Space to hold MEM_Str or MEM_Blob if szMalloc>0 */ void (*xDel)(void*);/* Destructor for Mem.z - only valid if MEM_Dyn */ #ifdef SQLITE_DEBUG Mem *pScopyFrom; /* This Mem is a shallow copy of pScopyFrom */ @@ -22258,11 +23236,43 @@ struct sqlite3_value { ** Size of struct Mem not including the Mem.zMalloc member or anything that ** follows. */ -#define MEMCELLSIZE offsetof(Mem,zMalloc) +#define MEMCELLSIZE offsetof(Mem,db) -/* One or more of the following flags are set to indicate the validOK +/* One or more of the following flags are set to indicate the ** representations of the value stored in the Mem struct. ** +** * MEM_Null An SQL NULL value +** +** * MEM_Null|MEM_Zero An SQL NULL with the virtual table +** UPDATE no-change flag set +** +** * MEM_Null|MEM_Term| An SQL NULL, but also contains a +** MEM_Subtype pointer accessible using +** sqlite3_value_pointer(). +** +** * MEM_Null|MEM_Cleared Special SQL NULL that compares non-equal +** to other NULLs even using the IS operator. +** +** * MEM_Str A string, stored in Mem.z with +** length Mem.n. Zero-terminated if +** MEM_Term is set. This flag is +** incompatible with MEM_Blob and +** MEM_Null, but can appear with MEM_Int, +** MEM_Real, and MEM_IntReal. +** +** * MEM_Blob A blob, stored in Mem.z length Mem.n. +** Incompatible with MEM_Str, MEM_Null, +** MEM_Int, MEM_Real, and MEM_IntReal. +** +** * MEM_Blob|MEM_Zero A blob in Mem.z of length Mem.n plus +** MEM.u.i extra 0x00 bytes at the end. +** +** * MEM_Int Integer stored in Mem.u.i. +** +** * MEM_Real Real stored in Mem.u.r. +** +** * MEM_IntReal Real stored as an integer in Mem.u.i. +** ** If the MEM_Null flag is set, then the value is an SQL NULL value. ** For a pointer type created using sqlite3_bind_pointer() or ** sqlite3_result_pointer() the MEM_Term and MEM_Subtype flags are also set. @@ -22273,6 +23283,7 @@ struct sqlite3_value { ** set, then the string is nul terminated. The MEM_Int and MEM_Real ** flags may coexist with the MEM_Str flag. */ +#define MEM_Undefined 0x0000 /* Value is undefined */ #define MEM_Null 0x0001 /* Value is NULL (or a pointer) */ #define MEM_Str 0x0002 /* Value is a string */ #define MEM_Int 0x0004 /* Value is an integer */ @@ -22280,28 +23291,24 @@ struct sqlite3_value { #define MEM_Blob 0x0010 /* Value is a BLOB */ #define MEM_IntReal 0x0020 /* MEM_Int that stringifies like MEM_Real */ #define MEM_AffMask 0x003f /* Mask of affinity bits */ + +/* Extra bits that modify the meanings of the core datatypes above +*/ #define MEM_FromBind 0x0040 /* Value originates from sqlite3_bind() */ -#define MEM_Undefined 0x0080 /* Value is undefined */ + /* 0x0080 // Available */ #define MEM_Cleared 0x0100 /* NULL set by OP_Null, not from data */ -#define MEM_TypeMask 0xc1bf /* Mask of type bits */ - +#define MEM_Term 0x0200 /* String in Mem.z is zero terminated */ +#define MEM_Zero 0x0400 /* Mem.i contains count of 0s appended to blob */ +#define MEM_Subtype 0x0800 /* Mem.eSubtype is valid */ +#define MEM_TypeMask 0x0dbf /* Mask of type bits */ -/* Whenever Mem contains a valid string or blob representation, one of -** the following flags must be set to determine the memory management -** policy for Mem.z. The MEM_Term flag tells us whether or not the -** string is \000 or \u0000 terminated +/* Bits that determine the storage for Mem.z for a string or blob or +** aggregate accumulator. */ -#define MEM_Term 0x0200 /* String in Mem.z is zero terminated */ -#define MEM_Dyn 0x0400 /* Need to call Mem.xDel() on Mem.z */ -#define MEM_Static 0x0800 /* Mem.z points to a static string */ -#define MEM_Ephem 0x1000 /* Mem.z points to an ephemeral string */ -#define MEM_Agg 0x2000 /* Mem.z points to an agg function context */ -#define MEM_Zero 0x4000 /* Mem.i contains count of 0s appended to blob */ -#define MEM_Subtype 0x8000 /* Mem.eSubtype is valid */ -#ifdef SQLITE_OMIT_INCRBLOB - #undef MEM_Zero - #define MEM_Zero 0x0000 -#endif +#define MEM_Dyn 0x1000 /* Need to call Mem.xDel() on Mem.z */ +#define MEM_Static 0x2000 /* Mem.z points to a static string */ +#define MEM_Ephem 0x4000 /* Mem.z points to an ephemeral string */ +#define MEM_Agg 0x8000 /* Mem.z points to an agg function context */ /* Return TRUE if Mem X contains dynamically allocated content - anything ** that needs to be deallocated to avoid a leak. @@ -22323,11 +23330,15 @@ struct sqlite3_value { && (X)->n==0 && (X)->u.nZero==0) /* -** Return true if a memory cell is not marked as invalid. This macro +** Return true if a memory cell has been initialized and is valid. ** is for use inside assert() statements only. +** +** A Memory cell is initialized if at least one of the +** MEM_Null, MEM_Str, MEM_Int, MEM_Real, MEM_Blob, or MEM_IntReal bits +** is set. It is "undefined" if all those bits are zero. */ #ifdef SQLITE_DEBUG -#define memIsValid(M) ((M)->flags & MEM_Undefined)==0 +#define memIsValid(M) ((M)->flags & MEM_AffMask)!=0 #endif /* @@ -22365,6 +23376,7 @@ struct sqlite3_context { Vdbe *pVdbe; /* The VM that owns this context */ int iOp; /* Instruction number of OP_Function */ int isError; /* Error code returned by the function. */ + u8 enc; /* Encoding to use for results */ u8 skipFlag; /* Skip accumulator loading if true */ u8 argc; /* Number of arguments */ sqlite3_value *argv[1]; /* Argument set */ @@ -22377,10 +23389,19 @@ typedef unsigned bft; /* Bit Field Type */ /* The ScanStatus object holds a single value for the ** sqlite3_stmt_scanstatus() interface. +** +** aAddrRange[]: +** This array is used by ScanStatus elements associated with EQP +** notes that make an SQLITE_SCANSTAT_NCYCLE value available. It is +** an array of up to 3 ranges of VM addresses for which the Vdbe.anCycle[] +** values should be summed to calculate the NCYCLE value. Each pair of +** integer addresses is a start and end address (both inclusive) for a range +** instructions. A start value of 0 indicates an empty range. */ typedef struct ScanStatus ScanStatus; struct ScanStatus { int addrExplain; /* OP_Explain for loop */ + int aAddrRange[6]; int addrLoop; /* Address of "loops" counter */ int addrVisit; /* Address of "rows visited" counter */ int iSelectID; /* The "Select-ID" for this loop */ @@ -22410,10 +23431,9 @@ struct DblquoteStr { */ struct Vdbe { sqlite3 *db; /* The database connection that owns this statement */ - Vdbe *pPrev,*pNext; /* Linked list of VDBEs with the same Vdbe.db */ + Vdbe **ppVPrev,*pVNext; /* Linked list of VDBEs with the same Vdbe.db */ Parse *pParse; /* Parsing context used to create this Vdbe */ ynVar nVar; /* Number of entries in aVar[] */ - u32 iVdbeMagic; /* Magic number defining state of the SQL statement */ int nMem; /* Number of memory locations currently allocated */ int nCursor; /* Number of slots in apCsr[] */ u32 cacheCtr; /* VdbeCursor row cache generation counter */ @@ -22437,7 +23457,7 @@ struct Vdbe { int nOp; /* Number of instructions in the program */ int nOpAlloc; /* Slots allocated for aOp[] */ Mem *aColName; /* Column names to return */ - Mem *pResultSet; /* Pointer to an array of results */ + Mem *pResultRow; /* Current output row */ char *zErrMsg; /* Error message written here */ VList *pVList; /* Name of variables */ #ifndef SQLITE_OMIT_TRACE @@ -22448,17 +23468,18 @@ struct Vdbe { u32 nWrite; /* Number of write operations that have occurred */ #endif u16 nResColumn; /* Number of columns in one row of the result set */ + u16 nResAlloc; /* Column slots allocated to aColName[] */ u8 errorAction; /* Recovery action to do in case of an error */ u8 minWriteFileFormat; /* Minimum file format for writable database files */ u8 prepFlags; /* SQLITE_PREPARE_* flags */ - u8 doingRerun; /* True if rerunning after an auto-reprepare */ + u8 eVdbeState; /* On of the VDBE_*_STATE values */ bft expired:2; /* 1: recompile VM immediately 2: when convenient */ - bft explain:2; /* True if EXPLAIN present on SQL command */ + bft explain:2; /* 0: normal, 1: EXPLAIN, 2: EXPLAIN QUERY PLAN */ bft changeCntOn:1; /* True to update the change-counter */ - bft runOnlyOnce:1; /* Automatically expire on reset */ bft usesStmtJournal:1; /* True if uses a statement journal */ bft readOnly:1; /* True for statements that do not write */ bft bIsReader:1; /* True for statements that read */ + bft haveEqpOps:1; /* Bytecode supports EXPLAIN QUERY PLAN */ yDbMask btreeMask; /* Bitmask of db->aDb[] entries referenced */ yDbMask lockMask; /* Subset of btreeMask that requires a lock */ u32 aCounter[9]; /* Counters used by sqlite3_stmt_status() */ @@ -22475,20 +23496,18 @@ struct Vdbe { SubProgram *pProgram; /* Linked list of all sub-programs used by VM */ AuxData *pAuxData; /* Linked list of auxdata allocations */ #ifdef SQLITE_ENABLE_STMT_SCANSTATUS - i64 *anExec; /* Number of times each op has been executed */ int nScan; /* Entries in aScan[] */ ScanStatus *aScan; /* Scan definitions for sqlite3_stmt_scanstatus() */ #endif }; /* -** The following are allowed values for Vdbe.magic +** The following are allowed values for Vdbe.eVdbeState */ -#define VDBE_MAGIC_INIT 0x16bceaa5 /* Building a VDBE program */ -#define VDBE_MAGIC_RUN 0x2df20da3 /* VDBE is ready to execute */ -#define VDBE_MAGIC_HALT 0x319c2973 /* VDBE has completed execution */ -#define VDBE_MAGIC_RESET 0x48fa9f76 /* Reset and ready to run again */ -#define VDBE_MAGIC_DEAD 0x5606c3c8 /* The VDBE has been deallocated */ +#define VDBE_INIT_STATE 0 /* Prepared statement under construction */ +#define VDBE_READY_STATE 1 /* Ready to run but not yet started */ +#define VDBE_RUN_STATE 2 /* Run in progress */ +#define VDBE_HALT_STATE 3 /* Finished. Need reset() or finalize() */ /* ** Structure used to store the context required by the @@ -22507,7 +23526,7 @@ struct PreUpdate { i64 iKey1; /* First key value passed to hook */ i64 iKey2; /* Second key value passed to hook */ Mem *aNew; /* Array of new.* values */ - Table *pTab; /* Schema object being upated */ + Table *pTab; /* Schema object being updated */ Index *pPk; /* PK index if pTab is WITHOUT ROWID */ }; @@ -22529,18 +23548,31 @@ struct ValueList { sqlite3_value *pOut; /* Register to hold each decoded output value */ }; +/* Size of content associated with serial types that fit into a +** single-byte varint. +*/ +#ifndef SQLITE_AMALGAMATION +SQLITE_PRIVATE const u8 sqlite3SmallTypeSizes[]; +#endif + /* ** Function prototypes */ SQLITE_PRIVATE void sqlite3VdbeError(Vdbe*, const char *, ...); SQLITE_PRIVATE void sqlite3VdbeFreeCursor(Vdbe *, VdbeCursor*); +SQLITE_PRIVATE void sqlite3VdbeFreeCursorNN(Vdbe*,VdbeCursor*); void sqliteVdbePopStack(Vdbe*,int); +SQLITE_PRIVATE int SQLITE_NOINLINE sqlite3VdbeHandleMovedCursor(VdbeCursor *p); SQLITE_PRIVATE int SQLITE_NOINLINE sqlite3VdbeFinishMoveto(VdbeCursor*); -SQLITE_PRIVATE int sqlite3VdbeCursorMoveto(VdbeCursor**, u32*); SQLITE_PRIVATE int sqlite3VdbeCursorRestore(VdbeCursor*); SQLITE_PRIVATE u32 sqlite3VdbeSerialTypeLen(u32); SQLITE_PRIVATE u8 sqlite3VdbeOneByteSerialTypeLen(u8); -SQLITE_PRIVATE u32 sqlite3VdbeSerialPut(unsigned char*, Mem*, u32); +#ifdef SQLITE_MIXED_ENDIAN_64BIT_FLOAT +SQLITE_PRIVATE u64 sqlite3FloatSwap(u64 in); +# define swapMixedEndianFloat(X) X = sqlite3FloatSwap(X) +#else +# define swapMixedEndianFloat(X) +#endif SQLITE_PRIVATE void sqlite3VdbeSerialGet(const unsigned char*, u32, Mem*); SQLITE_PRIVATE void sqlite3VdbeDeleteAuxData(sqlite3*, AuxData**, int, int); @@ -22584,6 +23616,7 @@ SQLITE_PRIVATE int sqlite3VdbeMemSetZeroBlob(Mem*,int); SQLITE_PRIVATE int sqlite3VdbeMemIsRowSet(const Mem*); #endif SQLITE_PRIVATE int sqlite3VdbeMemSetRowSet(Mem*); +SQLITE_PRIVATE void sqlite3VdbeMemZeroTerminateIfAble(Mem*); SQLITE_PRIVATE int sqlite3VdbeMemMakeWriteable(Mem*); SQLITE_PRIVATE int sqlite3VdbeMemStringify(Mem*, u8, u8); SQLITE_PRIVATE int sqlite3IntFloatCompare(i64,double); @@ -22598,6 +23631,7 @@ SQLITE_PRIVATE int sqlite3VdbeMemCast(Mem*,u8,u8); SQLITE_PRIVATE int sqlite3VdbeMemFromBtree(BtCursor*,u32,u32,Mem*); SQLITE_PRIVATE int sqlite3VdbeMemFromBtreeZeroOffset(BtCursor*,u32,Mem*); SQLITE_PRIVATE void sqlite3VdbeMemRelease(Mem *p); +SQLITE_PRIVATE void sqlite3VdbeMemReleaseMalloc(Mem*p); SQLITE_PRIVATE int sqlite3VdbeMemFinalize(Mem*, FuncDef*); #ifndef SQLITE_OMIT_WINDOWFUNC SQLITE_PRIVATE int sqlite3VdbeMemAggValue(Mem*, Mem*, FuncDef*); @@ -22629,6 +23663,8 @@ SQLITE_PRIVATE int sqlite3VdbeSorterRewind(const VdbeCursor *, int *); SQLITE_PRIVATE int sqlite3VdbeSorterWrite(const VdbeCursor *, Mem *); SQLITE_PRIVATE int sqlite3VdbeSorterCompare(const VdbeCursor *, Mem *, int, int *); +SQLITE_PRIVATE void sqlite3VdbeValueListFree(void*); + #ifdef SQLITE_DEBUG SQLITE_PRIVATE void sqlite3VdbeIncrWriteCounter(Vdbe*, VdbeCursor*); SQLITE_PRIVATE void sqlite3VdbeAssertAbortable(Vdbe*); @@ -22957,6 +23993,8 @@ SQLITE_API int sqlite3_db_status( sqlite3BtreeEnterAll(db); db->pnBytesFreed = &nByte; + assert( db->lookaside.pEnd==db->lookaside.pTrueEnd ); + db->lookaside.pEnd = db->lookaside.pStart; for(i=0; i<db->nDb; i++){ Schema *pSchema = db->aDb[i].pSchema; if( ALWAYS(pSchema!=0) ){ @@ -22982,6 +24020,7 @@ SQLITE_API int sqlite3_db_status( } } db->pnBytesFreed = 0; + db->lookaside.pEnd = db->lookaside.pTrueEnd; sqlite3BtreeLeaveAll(db); *pHighwater = 0; @@ -22999,10 +24038,12 @@ SQLITE_API int sqlite3_db_status( int nByte = 0; /* Used to accumulate return value */ db->pnBytesFreed = &nByte; - for(pVdbe=db->pVdbe; pVdbe; pVdbe=pVdbe->pNext){ - sqlite3VdbeClearObject(db, pVdbe); - sqlite3DbFree(db, pVdbe); + assert( db->lookaside.pEnd==db->lookaside.pTrueEnd ); + db->lookaside.pEnd = db->lookaside.pStart; + for(pVdbe=db->pVdbe; pVdbe; pVdbe=pVdbe->pVNext){ + sqlite3VdbeDelete(pVdbe); } + db->lookaside.pEnd = db->lookaside.pTrueEnd; db->pnBytesFreed = 0; *pHighwater = 0; /* IMP: R-64479-57858 */ @@ -23023,7 +24064,7 @@ SQLITE_API int sqlite3_db_status( case SQLITE_DBSTATUS_CACHE_MISS: case SQLITE_DBSTATUS_CACHE_WRITE:{ int i; - int nRet = 0; + u64 nRet = 0; assert( SQLITE_DBSTATUS_CACHE_MISS==SQLITE_DBSTATUS_CACHE_HIT+1 ); assert( SQLITE_DBSTATUS_CACHE_WRITE==SQLITE_DBSTATUS_CACHE_HIT+2 ); @@ -23036,7 +24077,7 @@ SQLITE_API int sqlite3_db_status( *pHighwater = 0; /* IMP: R-42420-56072 */ /* IMP: R-54100-20147 */ /* IMP: R-29431-39229 */ - *pCurrent = nRet; + *pCurrent = (int)nRet & 0x7fffffff; break; } @@ -23139,6 +24180,7 @@ struct DateTime { char validTZ; /* True (1) if tz is valid */ char tzSet; /* Timezone was set explicitly */ char isError; /* An overflow has occurred */ + char useSubsec; /* Display subsecond precision */ }; @@ -23171,8 +24213,8 @@ struct DateTime { */ static int getDigits(const char *zDate, const char *zFormat, ...){ /* The aMx[] array translates the 3rd character of each format - ** spec into a max size: a b c d e f */ - static const u16 aMx[] = { 12, 14, 24, 31, 59, 9999 }; + ** spec into a max size: a b c d e f */ + static const u16 aMx[] = { 12, 14, 24, 31, 59, 14712 }; va_list ap; int cnt = 0; char nextC; @@ -23338,7 +24380,7 @@ static void computeJD(DateTime *p){ p->iJD = (sqlite3_int64)((X1 + X2 + D + B - 1524.5 ) * 86400000); p->validJD = 1; if( p->validHMS ){ - p->iJD += p->h*3600000 + p->m*60000 + (sqlite3_int64)(p->s*1000); + p->iJD += p->h*3600000 + p->m*60000 + (sqlite3_int64)(p->s*1000 + 0.5); if( p->validTZ ){ p->iJD -= p->tz*60000; p->validYMD = 0; @@ -23453,6 +24495,11 @@ static int parseDateOrTime( }else if( sqlite3AtoF(zDate, &r, sqlite3Strlen30(zDate), SQLITE_UTF8)>0 ){ setRawDateNumber(p, r); return 0; + }else if( (sqlite3StrICmp(zDate,"subsec")==0 + || sqlite3StrICmp(zDate,"subsecond")==0) + && sqlite3NotPureFunc(context) ){ + p->useSubsec = 1; + return setDateTimeToCurrent(context, p); } return 1; } @@ -23508,17 +24555,14 @@ static void computeYMD(DateTime *p){ ** Compute the Hour, Minute, and Seconds from the julian day number. */ static void computeHMS(DateTime *p){ - int s; + int day_ms, day_min; /* milliseconds, minutes into the day */ if( p->validHMS ) return; computeJD(p); - s = (int)((p->iJD + 43200000) % 86400000); - p->s = s/1000.0; - s = (int)p->s; - p->s -= s; - p->h = s/3600; - s -= p->h*3600; - p->m = s/60; - p->s += s - p->m*60; + day_ms = (int)((p->iJD + 43200000) % 86400000); + p->s = (day_ms % 60000)/1000.0; + day_min = day_ms/60000; + p->m = day_min % 60; + p->h = day_min / 60; p->rawS = 0; p->validHMS = 1; } @@ -23698,6 +24742,25 @@ static const struct { }; /* +** If the DateTime p is raw number, try to figure out if it is +** a julian day number of a unix timestamp. Set the p value +** appropriately. +*/ +static void autoAdjustDate(DateTime *p){ + if( !p->rawS || p->validJD ){ + p->rawS = 0; + }else if( p->s>=-21086676*(i64)10000 /* -4713-11-24 12:00:00 */ + && p->s<=(25340230*(i64)10000)+799 /* 9999-12-31 23:59:59 */ + ){ + double r = p->s*1000.0 + 210866760000000.0; + clearYMD_HMS_TZ(p); + p->iJD = (sqlite3_int64)(r + 0.5); + p->validJD = 1; + p->rawS = 0; + } +} + +/* ** Process a modifier to a date-time stamp. The modifiers are ** as follows: ** @@ -23740,19 +24803,8 @@ static int parseModifier( */ if( sqlite3_stricmp(z, "auto")==0 ){ if( idx>1 ) return 1; /* IMP: R-33611-57934 */ - if( !p->rawS || p->validJD ){ - rc = 0; - p->rawS = 0; - }else if( p->s>=-21086676*(i64)10000 /* -4713-11-24 12:00:00 */ - && p->s<=(25340230*(i64)10000)+799 /* 9999-12-31 23:59:59 */ - ){ - r = p->s*1000.0 + 210866760000000.0; - clearYMD_HMS_TZ(p); - p->iJD = (sqlite3_int64)(r + 0.5); - p->validJD = 1; - p->rawS = 0; - rc = 0; - } + autoAdjustDate(p); + rc = 0; } break; } @@ -23811,7 +24863,7 @@ static int parseModifier( i64 iOrigJD; /* Original localtime */ i64 iGuess; /* Guess at the corresponding utc time */ int cnt = 0; /* Safety to prevent infinite loop */ - int iErr; /* Guess is off by this much */ + i64 iErr; /* Guess is off by this much */ computeJD(p); iGuess = iOrigJD = p->iJD; @@ -23847,7 +24899,7 @@ static int parseModifier( */ if( sqlite3_strnicmp(z, "weekday ", 8)==0 && sqlite3AtoF(&z[8], &r, sqlite3Strlen30(&z[8]), SQLITE_UTF8)>0 - && (n=(int)r)==r && n>=0 && r<7 ){ + && r>=0.0 && r<7.0 && (n=(int)r)==r ){ sqlite3_int64 Z; computeYMD_HMS(p); p->validTZ = 0; @@ -23867,8 +24919,22 @@ static int parseModifier( ** ** Move the date backwards to the beginning of the current day, ** or month or year. + ** + ** subsecond + ** subsec + ** + ** Show subsecond precision in the output of datetime() and + ** unixepoch() and strftime('%s'). */ - if( sqlite3_strnicmp(z, "start of ", 9)!=0 ) break; + if( sqlite3_strnicmp(z, "start of ", 9)!=0 ){ + if( sqlite3_stricmp(z, "subsec")==0 + || sqlite3_stricmp(z, "subsecond")==0 + ){ + p->useSubsec = 1; + rc = 0; + } + break; + } if( !p->validJD && !p->validYMD && !p->validHMS ) break; z += 9; computeYMD(p); @@ -23904,18 +24970,73 @@ static int parseModifier( case '9': { double rRounder; int i; - for(n=1; z[n] && z[n]!=':' && !sqlite3Isspace(z[n]); n++){} + int Y,M,D,h,m,x; + const char *z2 = z; + char z0 = z[0]; + for(n=1; z[n]; n++){ + if( z[n]==':' ) break; + if( sqlite3Isspace(z[n]) ) break; + if( z[n]=='-' ){ + if( n==5 && getDigits(&z[1], "40f", &Y)==1 ) break; + if( n==6 && getDigits(&z[1], "50f", &Y)==1 ) break; + } + } if( sqlite3AtoF(z, &r, n, SQLITE_UTF8)<=0 ){ - rc = 1; + assert( rc==1 ); break; } - if( z[n]==':' ){ + if( z[n]=='-' ){ + /* A modifier of the form (+|-)YYYY-MM-DD adds or subtracts the + ** specified number of years, months, and days. MM is limited to + ** the range 0-11 and DD is limited to 0-30. + */ + if( z0!='+' && z0!='-' ) break; /* Must start with +/- */ + if( n==5 ){ + if( getDigits(&z[1], "40f-20a-20d", &Y, &M, &D)!=3 ) break; + }else{ + assert( n==6 ); + if( getDigits(&z[1], "50f-20a-20d", &Y, &M, &D)!=3 ) break; + z++; + } + if( M>=12 ) break; /* M range 0..11 */ + if( D>=31 ) break; /* D range 0..30 */ + computeYMD_HMS(p); + p->validJD = 0; + if( z0=='-' ){ + p->Y -= Y; + p->M -= M; + D = -D; + }else{ + p->Y += Y; + p->M += M; + } + x = p->M>0 ? (p->M-1)/12 : (p->M-12)/12; + p->Y += x; + p->M -= x*12; + computeJD(p); + p->validHMS = 0; + p->validYMD = 0; + p->iJD += (i64)D*86400000; + if( z[11]==0 ){ + rc = 0; + break; + } + if( sqlite3Isspace(z[11]) + && getDigits(&z[12], "20c:20e", &h, &m)==2 + ){ + z2 = &z[12]; + n = 2; + }else{ + break; + } + } + if( z2[n]==':' ){ /* A modifier of the form (+|-)HH:MM:SS.FFF adds (or subtracts) the ** specified number of hours, minutes, seconds, and fractional seconds ** to the time. The ".FFF" may be omitted. The ":SS.FFF" may be ** omitted. */ - const char *z2 = z; + DateTime tx; sqlite3_int64 day; if( !sqlite3Isdigit(*z2) ) z2++; @@ -23925,7 +25046,7 @@ static int parseModifier( tx.iJD -= 43200000; day = tx.iJD/86400000; tx.iJD -= day*86400000; - if( z[0]=='-' ) tx.iJD = -tx.iJD; + if( z0=='-' ) tx.iJD = -tx.iJD; computeJD(p); clearYMD_HMS_TZ(p); p->iJD += tx.iJD; @@ -23941,7 +25062,7 @@ static int parseModifier( if( n>10 || n<3 ) break; if( sqlite3UpperToLower[(u8)z[n-1]]=='s' ) n--; computeJD(p); - rc = 1; + assert( rc==1 ); rRounder = r<0 ? -0.5 : +0.5; for(i=0; i<ArraySize(aXformType); i++){ if( aXformType[i].nName==n @@ -23950,7 +25071,6 @@ static int parseModifier( ){ switch( i ){ case 4: { /* Special processing to add months */ - int x; assert( strcmp(aXformType[i].zName,"month")==0 ); computeYMD_HMS(p); p->M += (int)r; @@ -24026,6 +25146,12 @@ static int isDate( } computeJD(p); if( p->isError || !validJulianDay(p->iJD) ) return 1; + if( argc==1 && p->validYMD && p->D>28 ){ + /* Make sure a YYYY-MM-DD is normalized. + ** Example: 2023-02-31 -> 2023-03-03 */ + assert( p->validJD ); + p->validYMD = 0; + } return 0; } @@ -24066,7 +25192,11 @@ static void unixepochFunc( DateTime x; if( isDate(context, argc, argv, &x)==0 ){ computeJD(&x); - sqlite3_result_int64(context, x.iJD/1000 - 21086676*(i64)10000); + if( x.useSubsec ){ + sqlite3_result_double(context, (x.iJD - 21086676*(i64)10000000)/1000.0); + }else{ + sqlite3_result_int64(context, x.iJD/1000 - 21086676*(i64)10000); + } } } @@ -24082,8 +25212,8 @@ static void datetimeFunc( ){ DateTime x; if( isDate(context, argc, argv, &x)==0 ){ - int Y, s; - char zBuf[24]; + int Y, s, n; + char zBuf[32]; computeYMD_HMS(&x); Y = x.Y; if( Y<0 ) Y = -Y; @@ -24104,15 +25234,28 @@ static void datetimeFunc( zBuf[15] = '0' + (x.m/10)%10; zBuf[16] = '0' + (x.m)%10; zBuf[17] = ':'; - s = (int)x.s; - zBuf[18] = '0' + (s/10)%10; - zBuf[19] = '0' + (s)%10; - zBuf[20] = 0; + if( x.useSubsec ){ + s = (int)(1000.0*x.s + 0.5); + zBuf[18] = '0' + (s/10000)%10; + zBuf[19] = '0' + (s/1000)%10; + zBuf[20] = '.'; + zBuf[21] = '0' + (s/100)%10; + zBuf[22] = '0' + (s/10)%10; + zBuf[23] = '0' + (s)%10; + zBuf[24] = 0; + n = 24; + }else{ + s = (int)x.s; + zBuf[18] = '0' + (s/10)%10; + zBuf[19] = '0' + (s)%10; + zBuf[20] = 0; + n = 20; + } if( x.Y<0 ){ zBuf[0] = '-'; - sqlite3_result_text(context, zBuf, 20, SQLITE_TRANSIENT); + sqlite3_result_text(context, zBuf, n, SQLITE_TRANSIENT); }else{ - sqlite3_result_text(context, &zBuf[1], 19, SQLITE_TRANSIENT); + sqlite3_result_text(context, &zBuf[1], n-1, SQLITE_TRANSIENT); } } } @@ -24129,7 +25272,7 @@ static void timeFunc( ){ DateTime x; if( isDate(context, argc, argv, &x)==0 ){ - int s; + int s, n; char zBuf[16]; computeHMS(&x); zBuf[0] = '0' + (x.h/10)%10; @@ -24138,11 +25281,24 @@ static void timeFunc( zBuf[3] = '0' + (x.m/10)%10; zBuf[4] = '0' + (x.m)%10; zBuf[5] = ':'; - s = (int)x.s; - zBuf[6] = '0' + (s/10)%10; - zBuf[7] = '0' + (s)%10; - zBuf[8] = 0; - sqlite3_result_text(context, zBuf, 8, SQLITE_TRANSIENT); + if( x.useSubsec ){ + s = (int)(1000.0*x.s + 0.5); + zBuf[6] = '0' + (s/10000)%10; + zBuf[7] = '0' + (s/1000)%10; + zBuf[8] = '.'; + zBuf[9] = '0' + (s/100)%10; + zBuf[10] = '0' + (s/10)%10; + zBuf[11] = '0' + (s)%10; + zBuf[12] = 0; + n = 12; + }else{ + s = (int)x.s; + zBuf[6] = '0' + (s/10)%10; + zBuf[7] = '0' + (s)%10; + zBuf[8] = 0; + n = 8; + } + sqlite3_result_text(context, zBuf, n, SQLITE_TRANSIENT); } } @@ -24197,7 +25353,7 @@ static void dateFunc( ** %M minute 00-59 ** %s seconds since 1970-01-01 ** %S seconds 00-59 -** %w day of week 0-6 sunday==0 +** %w day of week 0-6 Sunday==0 ** %W week of year 00-53 ** %Y year 0000-9999 ** %% % @@ -24223,13 +25379,16 @@ static void strftimeFunc( computeJD(&x); computeYMD_HMS(&x); for(i=j=0; zFmt[i]; i++){ + char cf; if( zFmt[i]!='%' ) continue; if( j<i ) sqlite3_str_append(&sRes, zFmt+j, (int)(i-j)); i++; j = i + 1; - switch( zFmt[i] ){ - case 'd': { - sqlite3_str_appendf(&sRes, "%02d", x.D); + cf = zFmt[i]; + switch( cf ){ + case 'd': /* Fall thru */ + case 'e': { + sqlite3_str_appendf(&sRes, cf=='d' ? "%02d" : "%2d", x.D); break; } case 'f': { @@ -24238,8 +25397,21 @@ static void strftimeFunc( sqlite3_str_appendf(&sRes, "%06.3f", s); break; } - case 'H': { - sqlite3_str_appendf(&sRes, "%02d", x.h); + case 'F': { + sqlite3_str_appendf(&sRes, "%04d-%02d-%02d", x.Y, x.M, x.D); + break; + } + case 'H': + case 'k': { + sqlite3_str_appendf(&sRes, cf=='H' ? "%02d" : "%2d", x.h); + break; + } + case 'I': /* Fall thru */ + case 'l': { + int h = x.h; + if( h>12 ) h -= 12; + if( h==0 ) h = 12; + sqlite3_str_appendf(&sRes, cf=='I' ? "%02d" : "%2d", h); break; } case 'W': /* Fall thru */ @@ -24251,7 +25423,7 @@ static void strftimeFunc( y.D = 1; computeJD(&y); nDay = (int)((x.iJD-y.iJD+43200000)/86400000); - if( zFmt[i]=='W' ){ + if( cf=='W' ){ int wd; /* 0=Monday, 1=Tuesday, ... 6=Sunday */ wd = (int)(((x.iJD+43200000)/86400000)%7); sqlite3_str_appendf(&sRes,"%02d",(nDay+7-wd)/7); @@ -24272,18 +25444,42 @@ static void strftimeFunc( sqlite3_str_appendf(&sRes,"%02d",x.m); break; } + case 'p': /* Fall thru */ + case 'P': { + if( x.h>=12 ){ + sqlite3_str_append(&sRes, cf=='p' ? "PM" : "pm", 2); + }else{ + sqlite3_str_append(&sRes, cf=='p' ? "AM" : "am", 2); + } + break; + } + case 'R': { + sqlite3_str_appendf(&sRes, "%02d:%02d", x.h, x.m); + break; + } case 's': { - i64 iS = (i64)(x.iJD/1000 - 21086676*(i64)10000); - sqlite3_str_appendf(&sRes,"%lld",iS); + if( x.useSubsec ){ + sqlite3_str_appendf(&sRes,"%.3f", + (x.iJD - 21086676*(i64)10000000)/1000.0); + }else{ + i64 iS = (i64)(x.iJD/1000 - 21086676*(i64)10000); + sqlite3_str_appendf(&sRes,"%lld",iS); + } break; } case 'S': { sqlite3_str_appendf(&sRes,"%02d",(int)x.s); break; } + case 'T': { + sqlite3_str_appendf(&sRes,"%02d:%02d:%02d", x.h, x.m, (int)x.s); + break; + } + case 'u': /* Fall thru */ case 'w': { - sqlite3_str_appendchar(&sRes, 1, - (char)(((x.iJD+129600000)/86400000) % 7) + '0'); + char c = (char)(((x.iJD+129600000)/86400000) % 7) + '0'; + if( c=='0' && cf=='u' ) c = '7'; + sqlite3_str_appendchar(&sRes, 1, c); break; } case 'Y': { @@ -24333,6 +25529,117 @@ static void cdateFunc( } /* +** timediff(DATE1, DATE2) +** +** Return the amount of time that must be added to DATE2 in order to +** convert it into DATE2. The time difference format is: +** +** +YYYY-MM-DD HH:MM:SS.SSS +** +** The initial "+" becomes "-" if DATE1 occurs before DATE2. For +** date/time values A and B, the following invariant should hold: +** +** datetime(A) == (datetime(B, timediff(A,B)) +** +** Both DATE arguments must be either a julian day number, or an +** ISO-8601 string. The unix timestamps are not supported by this +** routine. +*/ +static void timediffFunc( + sqlite3_context *context, + int NotUsed1, + sqlite3_value **argv +){ + char sign; + int Y, M; + DateTime d1, d2; + sqlite3_str sRes; + UNUSED_PARAMETER(NotUsed1); + if( isDate(context, 1, &argv[0], &d1) ) return; + if( isDate(context, 1, &argv[1], &d2) ) return; + computeYMD_HMS(&d1); + computeYMD_HMS(&d2); + if( d1.iJD>=d2.iJD ){ + sign = '+'; + Y = d1.Y - d2.Y; + if( Y ){ + d2.Y = d1.Y; + d2.validJD = 0; + computeJD(&d2); + } + M = d1.M - d2.M; + if( M<0 ){ + Y--; + M += 12; + } + if( M!=0 ){ + d2.M = d1.M; + d2.validJD = 0; + computeJD(&d2); + } + while( d1.iJD<d2.iJD ){ + M--; + if( M<0 ){ + M = 11; + Y--; + } + d2.M--; + if( d2.M<1 ){ + d2.M = 12; + d2.Y--; + } + d2.validJD = 0; + computeJD(&d2); + } + d1.iJD -= d2.iJD; + d1.iJD += (u64)1486995408 * (u64)100000; + }else /* d1<d2 */{ + sign = '-'; + Y = d2.Y - d1.Y; + if( Y ){ + d2.Y = d1.Y; + d2.validJD = 0; + computeJD(&d2); + } + M = d2.M - d1.M; + if( M<0 ){ + Y--; + M += 12; + } + if( M!=0 ){ + d2.M = d1.M; + d2.validJD = 0; + computeJD(&d2); + } + while( d1.iJD>d2.iJD ){ + M--; + if( M<0 ){ + M = 11; + Y--; + } + d2.M++; + if( d2.M>12 ){ + d2.M = 1; + d2.Y++; + } + d2.validJD = 0; + computeJD(&d2); + } + d1.iJD = d2.iJD - d1.iJD; + d1.iJD += (u64)1486995408 * (u64)100000; + } + d1.validYMD = 0; + d1.validHMS = 0; + d1.validTZ = 0; + computeYMD_HMS(&d1); + sqlite3StrAccumInit(&sRes, 0, 0, 0, 100); + sqlite3_str_appendf(&sRes, "%c%04d-%02d-%02d %02d:%02d:%06.3f", + sign, Y, M, d1.D-1, d1.h, d1.m, d1.s); + sqlite3ResultStrAccum(context, &sRes); +} + + +/* ** current_timestamp() ** ** This function returns the same value as datetime('now'). @@ -24406,6 +25713,7 @@ SQLITE_PRIVATE void sqlite3RegisterDateTimeFunctions(void){ PURE_DATE(time, -1, 0, 0, timeFunc ), PURE_DATE(datetime, -1, 0, 0, datetimeFunc ), PURE_DATE(strftime, -1, 0, 0, strftimeFunc ), + PURE_DATE(timediff, 2, 0, 0, timediffFunc ), DFUNCTION(current_time, 0, 0, 0, ctimeFunc ), DFUNCTION(current_timestamp, 0, 0, 0, ctimestampFunc), DFUNCTION(current_date, 0, 0, 0, cdateFunc ), @@ -24528,9 +25836,11 @@ SQLITE_PRIVATE int sqlite3OsFileSize(sqlite3_file *id, i64 *pSize){ } SQLITE_PRIVATE int sqlite3OsLock(sqlite3_file *id, int lockType){ DO_OS_MALLOC_TEST(id); + assert( lockType>=SQLITE_LOCK_SHARED && lockType<=SQLITE_LOCK_EXCLUSIVE ); return id->pMethods->xLock(id, lockType); } SQLITE_PRIVATE int sqlite3OsUnlock(sqlite3_file *id, int lockType){ + assert( lockType==SQLITE_LOCK_NONE || lockType==SQLITE_LOCK_SHARED ); return id->pMethods->xUnlock(id, lockType); } SQLITE_PRIVATE int sqlite3OsCheckReservedLock(sqlite3_file *id, int *pResOut){ @@ -24557,7 +25867,7 @@ SQLITE_PRIVATE int sqlite3OsFileControl(sqlite3_file *id, int op, void *pArg){ /* Faults are not injected into COMMIT_PHASETWO because, assuming SQLite ** is using a regular VFS, it is called after the corresponding ** transaction has been committed. Injecting a fault at this point - ** confuses the test scripts - the COMMIT comand returns SQLITE_NOMEM + ** confuses the test scripts - the COMMIT command returns SQLITE_NOMEM ** but the transaction is committed anyway. ** ** The core must call OsFileControl() though, not OsFileControlHint(), @@ -24645,6 +25955,7 @@ SQLITE_PRIVATE int sqlite3OsOpen( ** down into the VFS layer. Some SQLITE_OPEN_ flags (for example, ** SQLITE_OPEN_FULLMUTEX or SQLITE_OPEN_SHAREDCACHE) are blocked before ** reaching the VFS. */ + assert( zPath || (flags & SQLITE_OPEN_EXCLUSIVE) ); rc = pVfs->xOpen(pVfs, zPath, pFile, flags & 0x1087f7f, pFlagsOut); assert( rc==SQLITE_OK || pFile->pMethods==0 ); return rc; @@ -25177,7 +26488,7 @@ static void *sqlite3MemMalloc(int nByte){ ** or sqlite3MemRealloc(). ** ** For this low-level routine, we already know that pPrior!=0 since -** cases where pPrior==0 will have been intecepted and dealt with +** cases where pPrior==0 will have been intercepted and dealt with ** by higher-level routines. */ static void sqlite3MemFree(void *pPrior){ @@ -25265,7 +26576,7 @@ static int sqlite3MemInit(void *NotUsed){ return SQLITE_OK; } len = sizeof(cpuCount); - /* One usually wants to use hw.acctivecpu for MT decisions, but not here */ + /* One usually wants to use hw.activecpu for MT decisions, but not here */ sysctlbyname("hw.ncpu", &cpuCount, &len, NULL, 0); if( cpuCount>1 ){ /* defer MT decisions to system malloc */ @@ -26956,8 +28267,17 @@ static void *memsys5Realloc(void *pPrior, int nBytes){ */ static int memsys5Roundup(int n){ int iFullSz; - if( n > 0x40000000 ) return 0; - for(iFullSz=mem5.szAtom; iFullSz<n; iFullSz *= 2); + if( n<=mem5.szAtom*2 ){ + if( n<=mem5.szAtom ) return mem5.szAtom; + return mem5.szAtom*2; + } + if( n>0x10000000 ){ + if( n>0x40000000 ) return 0; + if( n>0x20000000 ) return 0x40000000; + return 0x20000000; + } + for(iFullSz=mem5.szAtom*8; iFullSz<n; iFullSz *= 4); + if( (iFullSz/2)>=(i64)n ) return iFullSz/2; return iFullSz; } @@ -27248,7 +28568,7 @@ static void checkMutexFree(sqlite3_mutex *p){ assert( SQLITE_MUTEX_FAST<2 ); assert( SQLITE_MUTEX_WARNONCONTENTION<2 ); -#if SQLITE_ENABLE_API_ARMOR +#ifdef SQLITE_ENABLE_API_ARMOR if( ((CheckMutex*)p)->iType<2 ) #endif { @@ -27723,7 +29043,7 @@ SQLITE_PRIVATE sqlite3_mutex_methods const *sqlite3DefaultMutex(void){ /* ** The sqlite3_mutex.id, sqlite3_mutex.nRef, and sqlite3_mutex.owner fields -** are necessary under two condidtions: (1) Debug builds and (2) using +** are necessary under two conditions: (1) Debug builds and (2) using ** home-grown mutexes. Encapsulate these conditions into a single #define. */ #if defined(SQLITE_DEBUG) || defined(SQLITE_HOMEGROWN_RECURSIVE_MUTEX) @@ -27920,7 +29240,7 @@ static sqlite3_mutex *pthreadMutexAlloc(int iType){ */ static void pthreadMutexFree(sqlite3_mutex *p){ assert( p->nRef==0 ); -#if SQLITE_ENABLE_API_ARMOR +#ifdef SQLITE_ENABLE_API_ARMOR if( p->id==SQLITE_MUTEX_FAST || p->id==SQLITE_MUTEX_RECURSIVE ) #endif { @@ -28224,7 +29544,7 @@ struct sqlite3_mutex { CRITICAL_SECTION mutex; /* Mutex controlling the lock */ int id; /* Mutex type */ #ifdef SQLITE_DEBUG - volatile int nRef; /* Number of enterances */ + volatile int nRef; /* Number of entrances */ volatile DWORD owner; /* Thread holding this mutex */ volatile LONG trace; /* True to trace changes */ #endif @@ -28273,7 +29593,7 @@ SQLITE_PRIVATE void sqlite3MemoryBarrier(void){ SQLITE_MEMORY_BARRIER; #elif defined(__GNUC__) __sync_synchronize(); -#elif MSVC_VERSION>=1300 +#elif MSVC_VERSION>=1400 _ReadWriteBarrier(); #elif defined(MemoryBarrier) MemoryBarrier(); @@ -28859,17 +30179,33 @@ static void mallocWithAlarm(int n, void **pp){ } /* +** Maximum size of any single memory allocation. +** +** This is not a limit on the total amount of memory used. This is +** a limit on the size parameter to sqlite3_malloc() and sqlite3_realloc(). +** +** The upper bound is slightly less than 2GiB: 0x7ffffeff == 2,147,483,391 +** This provides a 256-byte safety margin for defense against 32-bit +** signed integer overflow bugs when computing memory allocation sizes. +** Paranoid applications might want to reduce the maximum allocation size +** further for an even larger safety margin. 0x3fffffff or 0x0fffffff +** or even smaller would be reasonable upper bounds on the size of a memory +** allocations for most applications. +*/ +#ifndef SQLITE_MAX_ALLOCATION_SIZE +# define SQLITE_MAX_ALLOCATION_SIZE 2147483391 +#endif +#if SQLITE_MAX_ALLOCATION_SIZE>2147483391 +# error Maximum size for SQLITE_MAX_ALLOCATION_SIZE is 2147483391 +#endif + +/* ** Allocate memory. This routine is like sqlite3_malloc() except that it ** assumes the memory subsystem has already been initialized. */ SQLITE_PRIVATE void *sqlite3Malloc(u64 n){ void *p; - if( n==0 || n>=0x7fffff00 ){ - /* A memory allocation of a number of bytes which is near the maximum - ** signed integer value might cause an integer overflow inside of the - ** xMalloc(). Hence we limit the maximum size to 0x7fffff00, giving - ** 255 bytes of overhead. SQLite itself will never use anything near - ** this amount. The only way to reach the limit is with sqlite3_malloc() */ + if( n==0 || n>SQLITE_MAX_ALLOCATION_SIZE ){ p = 0; }else if( sqlite3GlobalConfig.bMemstat ){ sqlite3_mutex_enter(mem0.mutex); @@ -28905,7 +30241,7 @@ SQLITE_API void *sqlite3_malloc64(sqlite3_uint64 n){ */ #ifndef SQLITE_OMIT_LOOKASIDE static int isLookaside(sqlite3 *db, const void *p){ - return SQLITE_WITHIN(p, db->lookaside.pStart, db->lookaside.pEnd); + return SQLITE_WITHIN(p, db->lookaside.pStart, db->lookaside.pTrueEnd); } #else #define isLookaside(A,B) 0 @@ -28929,18 +30265,16 @@ static int lookasideMallocSize(sqlite3 *db, const void *p){ SQLITE_PRIVATE int sqlite3DbMallocSize(sqlite3 *db, const void *p){ assert( p!=0 ); #ifdef SQLITE_DEBUG - if( db==0 || !isLookaside(db,p) ){ - if( db==0 ){ - assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) ); - assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) ); - }else{ - assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); - assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); - } + if( db==0 ){ + assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) ); + assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) ); + }else if( !isLookaside(db,p) ){ + assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); + assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); } #endif if( db ){ - if( ((uptr)p)<(uptr)(db->lookaside.pEnd) ){ + if( ((uptr)p)<(uptr)(db->lookaside.pTrueEnd) ){ #ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE if( ((uptr)p)>=(uptr)(db->lookaside.pMiddle) ){ assert( sqlite3_mutex_held(db->mutex) ); @@ -28996,14 +30330,11 @@ SQLITE_PRIVATE void sqlite3DbFreeNN(sqlite3 *db, void *p){ assert( db==0 || sqlite3_mutex_held(db->mutex) ); assert( p!=0 ); if( db ){ - if( db->pnBytesFreed ){ - measureAllocationSize(db, p); - return; - } if( ((uptr)p)<(uptr)(db->lookaside.pEnd) ){ #ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE if( ((uptr)p)>=(uptr)(db->lookaside.pMiddle) ){ LookasideSlot *pBuf = (LookasideSlot*)p; + assert( db->pnBytesFreed==0 ); #ifdef SQLITE_DEBUG memset(p, 0xaa, LOOKASIDE_SMALL); /* Trash freed content */ #endif @@ -29014,6 +30345,7 @@ SQLITE_PRIVATE void sqlite3DbFreeNN(sqlite3 *db, void *p){ #endif /* SQLITE_OMIT_TWOSIZE_LOOKASIDE */ if( ((uptr)p)>=(uptr)(db->lookaside.pStart) ){ LookasideSlot *pBuf = (LookasideSlot*)p; + assert( db->pnBytesFreed==0 ); #ifdef SQLITE_DEBUG memset(p, 0xaa, db->lookaside.szTrue); /* Trash freed content */ #endif @@ -29022,6 +30354,10 @@ SQLITE_PRIVATE void sqlite3DbFreeNN(sqlite3 *db, void *p){ return; } } + if( db->pnBytesFreed ){ + measureAllocationSize(db, p); + return; + } } assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); @@ -29029,6 +30365,43 @@ SQLITE_PRIVATE void sqlite3DbFreeNN(sqlite3 *db, void *p){ sqlite3MemdebugSetType(p, MEMTYPE_HEAP); sqlite3_free(p); } +SQLITE_PRIVATE void sqlite3DbNNFreeNN(sqlite3 *db, void *p){ + assert( db!=0 ); + assert( sqlite3_mutex_held(db->mutex) ); + assert( p!=0 ); + if( ((uptr)p)<(uptr)(db->lookaside.pEnd) ){ +#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE + if( ((uptr)p)>=(uptr)(db->lookaside.pMiddle) ){ + LookasideSlot *pBuf = (LookasideSlot*)p; + assert( db->pnBytesFreed==0 ); +#ifdef SQLITE_DEBUG + memset(p, 0xaa, LOOKASIDE_SMALL); /* Trash freed content */ +#endif + pBuf->pNext = db->lookaside.pSmallFree; + db->lookaside.pSmallFree = pBuf; + return; + } +#endif /* SQLITE_OMIT_TWOSIZE_LOOKASIDE */ + if( ((uptr)p)>=(uptr)(db->lookaside.pStart) ){ + LookasideSlot *pBuf = (LookasideSlot*)p; + assert( db->pnBytesFreed==0 ); +#ifdef SQLITE_DEBUG + memset(p, 0xaa, db->lookaside.szTrue); /* Trash freed content */ +#endif + pBuf->pNext = db->lookaside.pFree; + db->lookaside.pFree = pBuf; + return; + } + } + if( db->pnBytesFreed ){ + measureAllocationSize(db, p); + return; + } + assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); + assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); + sqlite3MemdebugSetType(p, MEMTYPE_HEAP); + sqlite3_free(p); +} SQLITE_PRIVATE void sqlite3DbFree(sqlite3 *db, void *p){ assert( db==0 || sqlite3_mutex_held(db->mutex) ); if( p ) sqlite3DbFreeNN(db, p); @@ -29328,9 +30701,14 @@ SQLITE_PRIVATE char *sqlite3DbStrNDup(sqlite3 *db, const char *z, u64 n){ */ SQLITE_PRIVATE char *sqlite3DbSpanDup(sqlite3 *db, const char *zStart, const char *zEnd){ int n; +#ifdef SQLITE_DEBUG + /* Because of the way the parser works, the span is guaranteed to contain + ** at least one non-space character */ + for(n=0; sqlite3Isspace(zStart[n]); n++){ assert( &zStart[n]<zEnd ); } +#endif while( sqlite3Isspace(zStart[0]) ) zStart++; n = (int)(zEnd - zStart); - while( ALWAYS(n>0) && sqlite3Isspace(zStart[n-1]) ) n--; + while( sqlite3Isspace(zStart[n-1]) ) n--; return sqlite3DbStrNDup(db, zStart, n); } @@ -29364,8 +30742,13 @@ SQLITE_PRIVATE void *sqlite3OomFault(sqlite3 *db){ } DisableLookaside; if( db->pParse ){ + Parse *pParse; sqlite3ErrorMsg(db->pParse, "out of memory"); db->pParse->rc = SQLITE_NOMEM_BKPT; + for(pParse=db->pParse->pOuterParse; pParse; pParse = pParse->pOuterParse){ + pParse->nErr++; + pParse->rc = SQLITE_NOMEM; + } } } return 0; @@ -29421,7 +30804,7 @@ SQLITE_PRIVATE int sqlite3ApiExit(sqlite3* db, int rc){ if( db->mallocFailed || rc ){ return apiHandleError(db, rc); } - return rc & db->errMask; + return 0; } /************** End of malloc.c **********************************************/ @@ -29533,43 +30916,6 @@ static const et_info fmtinfo[] = { ** %!S Like %S but prefer the zName over the zAlias */ -/* Floating point constants used for rounding */ -static const double arRound[] = { - 5.0e-01, 5.0e-02, 5.0e-03, 5.0e-04, 5.0e-05, - 5.0e-06, 5.0e-07, 5.0e-08, 5.0e-09, 5.0e-10, -}; - -/* -** If SQLITE_OMIT_FLOATING_POINT is defined, then none of the floating point -** conversions will work. -*/ -#ifndef SQLITE_OMIT_FLOATING_POINT -/* -** "*val" is a double such that 0.1 <= *val < 10.0 -** Return the ascii code for the leading digit of *val, then -** multiply "*val" by 10.0 to renormalize. -** -** Example: -** input: *val = 3.14159 -** output: *val = 1.4159 function return = '3' -** -** The counter *cnt is incremented each time. After counter exceeds -** 16 (the number of significant digits in a 64-bit float) '0' is -** always returned. -*/ -static char et_getdigit(LONGDOUBLE_TYPE *val, int *cnt){ - int digit; - LONGDOUBLE_TYPE d; - if( (*cnt)<=0 ) return '0'; - (*cnt)--; - digit = (int)*val; - d = digit; - digit += '0'; - *val = (*val - d)*10.0; - return (char)digit; -} -#endif /* SQLITE_OMIT_FLOATING_POINT */ - /* ** Set the StrAccum object to an error mode. */ @@ -29661,18 +31007,15 @@ SQLITE_API void sqlite3_str_vappendf( u8 bArgList; /* True for SQLITE_PRINTF_SQLFUNC */ char prefix; /* Prefix character. "+" or "-" or " " or '\0'. */ sqlite_uint64 longvalue; /* Value for integer types */ - LONGDOUBLE_TYPE realvalue; /* Value for real types */ + double realvalue; /* Value for real types */ const et_info *infop; /* Pointer to the appropriate info structure */ char *zOut; /* Rendering buffer */ int nOut; /* Size of the rendering buffer */ char *zExtra = 0; /* Malloced memory used by some conversion */ -#ifndef SQLITE_OMIT_FLOATING_POINT - int exp, e2; /* exponent of real numbers */ - int nsd; /* Number of significant digits returned */ - double rounder; /* Used for rounding floating point values */ + int exp, e2; /* exponent of real numbers */ etByte flag_dp; /* True if decimal point should be shown */ etByte flag_rtz; /* True if trailing zeros should be removed */ -#endif + PrintfArguments *pArgList = 0; /* Arguments for SQLITE_PRINTF_SQLFUNC */ char buf[etBUFSIZE]; /* Conversion buffer */ @@ -29947,73 +31290,66 @@ SQLITE_API void sqlite3_str_vappendf( break; case etFLOAT: case etEXP: - case etGENERIC: + case etGENERIC: { + FpDecode s; + int iRound; + int j; + if( bArgList ){ realvalue = getDoubleArg(pArgList); }else{ realvalue = va_arg(ap,double); } -#ifdef SQLITE_OMIT_FLOATING_POINT - length = 0; -#else if( precision<0 ) precision = 6; /* Set default precision */ #ifdef SQLITE_FP_PRECISION_LIMIT if( precision>SQLITE_FP_PRECISION_LIMIT ){ precision = SQLITE_FP_PRECISION_LIMIT; } #endif - if( realvalue<0.0 ){ - realvalue = -realvalue; - prefix = '-'; - }else{ - prefix = flag_prefix; - } - if( xtype==etGENERIC && precision>0 ) precision--; - testcase( precision>0xfff ); - idx = precision & 0xfff; - rounder = arRound[idx%10]; - while( idx>=10 ){ rounder *= 1.0e-10; idx -= 10; } if( xtype==etFLOAT ){ - double rx = (double)realvalue; - sqlite3_uint64 u; - int ex; - memcpy(&u, &rx, sizeof(u)); - ex = -1023 + (int)((u>>52)&0x7ff); - if( precision+(ex/3) < 15 ) rounder += realvalue*3e-16; - realvalue += rounder; - } - /* Normalize realvalue to within 10.0 > realvalue >= 1.0 */ - exp = 0; - if( sqlite3IsNaN((double)realvalue) ){ - bufpt = "NaN"; - length = 3; - break; + iRound = -precision; + }else if( xtype==etGENERIC ){ + iRound = precision; + }else{ + iRound = precision+1; } - if( realvalue>0.0 ){ - LONGDOUBLE_TYPE scale = 1.0; - while( realvalue>=1e100*scale && exp<=350 ){ scale *= 1e100;exp+=100;} - while( realvalue>=1e10*scale && exp<=350 ){ scale *= 1e10; exp+=10; } - while( realvalue>=10.0*scale && exp<=350 ){ scale *= 10.0; exp++; } - realvalue /= scale; - while( realvalue<1e-8 ){ realvalue *= 1e8; exp-=8; } - while( realvalue<1.0 ){ realvalue *= 10.0; exp--; } - if( exp>350 ){ + sqlite3FpDecode(&s, realvalue, iRound, flag_altform2 ? 26 : 16); + if( s.isSpecial ){ + if( s.isSpecial==2 ){ + bufpt = flag_zeropad ? "null" : "NaN"; + length = sqlite3Strlen30(bufpt); + break; + }else if( flag_zeropad ){ + s.z[0] = '9'; + s.iDP = 1000; + s.n = 1; + }else{ + memcpy(buf, "-Inf", 5); bufpt = buf; - buf[0] = prefix; - memcpy(buf+(prefix!=0),"Inf",4); - length = 3+(prefix!=0); + if( s.sign=='-' ){ + /* no-op */ + }else if( flag_prefix ){ + buf[0] = flag_prefix; + }else{ + bufpt++; + } + length = sqlite3Strlen30(bufpt); break; } } - bufpt = buf; + if( s.sign=='-' ){ + prefix = '-'; + }else{ + prefix = flag_prefix; + } + + exp = s.iDP-1; + if( xtype==etGENERIC && precision>0 ) precision--; + /* ** If the field type is etGENERIC, then convert to either etEXP ** or etFLOAT, as appropriate. */ - if( xtype!=etFLOAT ){ - realvalue += rounder; - if( realvalue>=10.0 ){ realvalue *= 0.1; exp++; } - } if( xtype==etGENERIC ){ flag_rtz = !flag_alternateform; if( exp<-4 || exp>precision ){ @@ -30028,29 +31364,32 @@ SQLITE_API void sqlite3_str_vappendf( if( xtype==etEXP ){ e2 = 0; }else{ - e2 = exp; + e2 = s.iDP - 1; } + bufpt = buf; { i64 szBufNeeded; /* Size of a temporary buffer needed */ szBufNeeded = MAX(e2,0)+(i64)precision+(i64)width+15; + if( cThousand && e2>0 ) szBufNeeded += (e2+2)/3; if( szBufNeeded > etBUFSIZE ){ bufpt = zExtra = printfTempBuf(pAccum, szBufNeeded); if( bufpt==0 ) return; } } zOut = bufpt; - nsd = 16 + flag_altform2*10; flag_dp = (precision>0 ?1:0) | flag_alternateform | flag_altform2; /* The sign in front of the number */ if( prefix ){ *(bufpt++) = prefix; } /* Digits prior to the decimal point */ + j = 0; if( e2<0 ){ *(bufpt++) = '0'; }else{ for(; e2>=0; e2--){ - *(bufpt++) = et_getdigit(&realvalue,&nsd); + *(bufpt++) = j<s.n ? s.z[j++] : '0'; + if( cThousand && (e2%3)==0 && e2>1 ) *(bufpt++) = ','; } } /* The decimal point */ @@ -30059,13 +31398,12 @@ SQLITE_API void sqlite3_str_vappendf( } /* "0" digits after the decimal point but before the first ** significant digit of the number */ - for(e2++; e2<0; precision--, e2++){ - assert( precision>0 ); + for(e2++; e2<0 && precision>0; precision--, e2++){ *(bufpt++) = '0'; } /* Significant digits after the decimal point */ while( (precision--)>0 ){ - *(bufpt++) = et_getdigit(&realvalue,&nsd); + *(bufpt++) = j<s.n ? s.z[j++] : '0'; } /* Remove trailing zeros and the "." if no digits follow the "." */ if( flag_rtz && flag_dp ){ @@ -30081,6 +31419,7 @@ SQLITE_API void sqlite3_str_vappendf( } /* Add the "eNNN" suffix */ if( xtype==etEXP ){ + exp = s.iDP - 1; *(bufpt++) = aDigits[infop->charset]; if( exp<0 ){ *(bufpt++) = '-'; exp = -exp; @@ -30114,8 +31453,8 @@ SQLITE_API void sqlite3_str_vappendf( while( nPad-- ) bufpt[i++] = '0'; length = width; } -#endif /* !defined(SQLITE_OMIT_FLOATING_POINT) */ break; + } case etSIZE: if( !bArgList ){ *(va_arg(ap,int*)) = pAccum->nChar; @@ -30164,13 +31503,26 @@ SQLITE_API void sqlite3_str_vappendf( } } if( precision>1 ){ + i64 nPrior = 1; width -= precision-1; if( width>1 && !flag_leftjustify ){ sqlite3_str_appendchar(pAccum, width-1, ' '); width = 0; } - while( precision-- > 1 ){ - sqlite3_str_append(pAccum, buf, length); + sqlite3_str_append(pAccum, buf, length); + precision--; + while( precision > 1 ){ + i64 nCopyBytes; + if( nPrior > precision-1 ) nPrior = precision - 1; + nCopyBytes = length*nPrior; + if( nCopyBytes + pAccum->nChar >= pAccum->nAlloc ){ + sqlite3StrAccumEnlarge(pAccum, nCopyBytes); + } + if( pAccum->accError ) break; + sqlite3_str_append(pAccum, + &pAccum->zText[pAccum->nChar-nCopyBytes], nCopyBytes); + precision -= nPrior; + nPrior *= 2; } } bufpt = buf; @@ -30231,8 +31583,8 @@ SQLITE_API void sqlite3_str_vappendf( case etSQLESCAPE: /* %q: Escape ' characters */ case etSQLESCAPE2: /* %Q: Escape ' and enclose in '...' */ case etSQLESCAPE3: { /* %w: Escape " characters */ - int i, j, k, n, isnull; - int needQuote; + i64 i, j, k, n; + int needQuote, isnull; char ch; char q = ((xtype==etSQLESCAPE3)?'"':'\''); /* Quote character */ char *escarg; @@ -30312,8 +31664,14 @@ SQLITE_API void sqlite3_str_vappendf( sqlite3_str_appendall(pAccum, pItem->zName); }else if( pItem->zAlias ){ sqlite3_str_appendall(pAccum, pItem->zAlias); - }else if( ALWAYS(pItem->pSelect) ){ - sqlite3_str_appendf(pAccum, "SUBQUERY %u", pItem->pSelect->selId); + }else{ + Select *pSel = pItem->pSelect; + assert( pSel!=0 ); + if( pSel->selFlags & SF_NestedFrom ){ + sqlite3_str_appendf(pAccum, "(join-%u)", pSel->selId); + }else{ + sqlite3_str_appendf(pAccum, "(subquery-%u)", pSel->selId); + } } length = width = 0; break; @@ -30376,7 +31734,9 @@ SQLITE_PRIVATE void sqlite3RecordErrorByteOffset(sqlite3 *db, const char *z){ ** as the error offset. */ SQLITE_PRIVATE void sqlite3RecordErrorOffsetOfExpr(sqlite3 *db, const Expr *pExpr){ - while( pExpr && (ExprHasProperty(pExpr,EP_FromJoin) || pExpr->w.iOfst<=0) ){ + while( pExpr + && (ExprHasProperty(pExpr,EP_OuterON|EP_InnerON) || pExpr->w.iOfst<=0) + ){ pExpr = pExpr->pLeft; } if( pExpr==0 ) return; @@ -30390,9 +31750,9 @@ SQLITE_PRIVATE void sqlite3RecordErrorOffsetOfExpr(sqlite3 *db, const Expr *pExp ** Return the number of bytes of text that StrAccum is able to accept ** after the attempted enlargement. The value returned might be zero. */ -SQLITE_PRIVATE int sqlite3StrAccumEnlarge(StrAccum *p, int N){ +SQLITE_PRIVATE int sqlite3StrAccumEnlarge(StrAccum *p, i64 N){ char *zNew; - assert( p->nChar+(i64)N >= p->nAlloc ); /* Only called if really needed */ + assert( p->nChar+N >= p->nAlloc ); /* Only called if really needed */ if( p->accError ){ testcase(p->accError==SQLITE_TOOBIG); testcase(p->accError==SQLITE_NOMEM); @@ -30403,8 +31763,7 @@ SQLITE_PRIVATE int sqlite3StrAccumEnlarge(StrAccum *p, int N){ return p->nAlloc - p->nChar - 1; }else{ char *zOld = isMalloced(p) ? p->zText : 0; - i64 szNew = p->nChar; - szNew += (sqlite3_int64)N + 1; + i64 szNew = p->nChar + N + 1; if( szNew+p->nChar<=p->mxAlloc ){ /* Force exponential buffer size growth as long as it does not overflow, ** to avoid having to call this routine too often */ @@ -30434,7 +31793,8 @@ SQLITE_PRIVATE int sqlite3StrAccumEnlarge(StrAccum *p, int N){ return 0; } } - return N; + assert( N>=0 && N<=0x7fffffff ); + return (int)N; } /* @@ -30725,12 +32085,22 @@ SQLITE_API char *sqlite3_vsnprintf(int n, char *zBuf, const char *zFormat, va_li return zBuf; } SQLITE_API char *sqlite3_snprintf(int n, char *zBuf, const char *zFormat, ...){ - char *z; + StrAccum acc; va_list ap; + if( n<=0 ) return zBuf; +#ifdef SQLITE_ENABLE_API_ARMOR + if( zBuf==0 || zFormat==0 ) { + (void)SQLITE_MISUSE_BKPT; + if( zBuf ) zBuf[0] = 0; + return zBuf; + } +#endif + sqlite3StrAccumInit(&acc, 0, zBuf, n, 0); va_start(ap,zFormat); - z = sqlite3_vsnprintf(n, zBuf, zFormat, ap); + sqlite3_str_vappendf(&acc, zFormat, ap); va_end(ap); - return z; + zBuf[acc.nChar] = 0; + return zBuf; } /* @@ -30808,6 +32178,75 @@ SQLITE_API void sqlite3_str_appendf(StrAccum *p, const char *zFormat, ...){ va_end(ap); } + +/***************************************************************************** +** Reference counted string/blob storage +*****************************************************************************/ + +/* +** Increase the reference count of the string by one. +** +** The input parameter is returned. +*/ +SQLITE_PRIVATE char *sqlite3RCStrRef(char *z){ + RCStr *p = (RCStr*)z; + assert( p!=0 ); + p--; + p->nRCRef++; + return z; +} + +/* +** Decrease the reference count by one. Free the string when the +** reference count reaches zero. +*/ +SQLITE_PRIVATE void sqlite3RCStrUnref(void *z){ + RCStr *p = (RCStr*)z; + assert( p!=0 ); + p--; + assert( p->nRCRef>0 ); + if( p->nRCRef>=2 ){ + p->nRCRef--; + }else{ + sqlite3_free(p); + } +} + +/* +** Create a new string that is capable of holding N bytes of text, not counting +** the zero byte at the end. The string is uninitialized. +** +** The reference count is initially 1. Call sqlite3RCStrUnref() to free the +** newly allocated string. +** +** This routine returns 0 on an OOM. +*/ +SQLITE_PRIVATE char *sqlite3RCStrNew(u64 N){ + RCStr *p = sqlite3_malloc64( N + sizeof(*p) + 1 ); + if( p==0 ) return 0; + p->nRCRef = 1; + return (char*)&p[1]; +} + +/* +** Change the size of the string so that it is able to hold N bytes. +** The string might be reallocated, so return the new allocation. +*/ +SQLITE_PRIVATE char *sqlite3RCStrResize(char *z, u64 N){ + RCStr *p = (RCStr*)z; + RCStr *pNew; + assert( p!=0 ); + p--; + assert( p->nRCRef==1 ); + pNew = sqlite3_realloc64(p, N+sizeof(RCStr)+1); + if( pNew==0 ){ + sqlite3_free(p); + return 0; + }else{ + return (char*)&pNew[1]; + } +} + /************** End of printf.c **********************************************/ /************** Begin file treeview.c ****************************************/ /* @@ -30836,40 +32275,44 @@ SQLITE_API void sqlite3_str_appendf(StrAccum *p, const char *zFormat, ...){ ** Add a new subitem to the tree. The moreToFollow flag indicates that this ** is not the last item in the tree. */ -static TreeView *sqlite3TreeViewPush(TreeView *p, u8 moreToFollow){ +static void sqlite3TreeViewPush(TreeView **pp, u8 moreToFollow){ + TreeView *p = *pp; if( p==0 ){ - p = sqlite3_malloc64( sizeof(*p) ); - if( p==0 ) return 0; + *pp = p = sqlite3_malloc64( sizeof(*p) ); + if( p==0 ) return; memset(p, 0, sizeof(*p)); }else{ p->iLevel++; } assert( moreToFollow==0 || moreToFollow==1 ); - if( p->iLevel<sizeof(p->bLine) ) p->bLine[p->iLevel] = moreToFollow; - return p; + if( p->iLevel<(int)sizeof(p->bLine) ) p->bLine[p->iLevel] = moreToFollow; } /* ** Finished with one layer of the tree */ -static void sqlite3TreeViewPop(TreeView *p){ +static void sqlite3TreeViewPop(TreeView **pp){ + TreeView *p = *pp; if( p==0 ) return; p->iLevel--; - if( p->iLevel<0 ) sqlite3_free(p); + if( p->iLevel<0 ){ + sqlite3_free(p); + *pp = 0; + } } /* ** Generate a single line of output for the tree, with a prefix that contains ** all the appropriate tree lines */ -static void sqlite3TreeViewLine(TreeView *p, const char *zFormat, ...){ +SQLITE_PRIVATE void sqlite3TreeViewLine(TreeView *p, const char *zFormat, ...){ va_list ap; int i; StrAccum acc; - char zBuf[500]; + char zBuf[1000]; sqlite3StrAccumInit(&acc, 0, zBuf, sizeof(zBuf), 0); if( p ){ - for(i=0; i<p->iLevel && i<sizeof(p->bLine)-1; i++){ + for(i=0; i<p->iLevel && i<(int)sizeof(p->bLine)-1; i++){ sqlite3_str_append(&acc, p->bLine[i] ? "| " : " ", 4); } sqlite3_str_append(&acc, p->bLine[i] ? "|-- " : "'-- ", 4); @@ -30890,11 +32333,58 @@ static void sqlite3TreeViewLine(TreeView *p, const char *zFormat, ...){ ** Shorthand for starting a new tree item that consists of a single label */ static void sqlite3TreeViewItem(TreeView *p, const char *zLabel,u8 moreFollows){ - p = sqlite3TreeViewPush(p, moreFollows); + sqlite3TreeViewPush(&p, moreFollows); sqlite3TreeViewLine(p, "%s", zLabel); } /* +** Show a list of Column objects in tree format. +*/ +SQLITE_PRIVATE void sqlite3TreeViewColumnList( + TreeView *pView, + const Column *aCol, + int nCol, + u8 moreToFollow +){ + int i; + sqlite3TreeViewPush(&pView, moreToFollow); + sqlite3TreeViewLine(pView, "COLUMNS"); + for(i=0; i<nCol; i++){ + u16 flg = aCol[i].colFlags; + int colMoreToFollow = i<(nCol - 1); + sqlite3TreeViewPush(&pView, colMoreToFollow); + sqlite3TreeViewLine(pView, 0); + printf(" %s", aCol[i].zCnName); + switch( aCol[i].eCType ){ + case COLTYPE_ANY: printf(" ANY"); break; + case COLTYPE_BLOB: printf(" BLOB"); break; + case COLTYPE_INT: printf(" INT"); break; + case COLTYPE_INTEGER: printf(" INTEGER"); break; + case COLTYPE_REAL: printf(" REAL"); break; + case COLTYPE_TEXT: printf(" TEXT"); break; + case COLTYPE_CUSTOM: { + if( flg & COLFLAG_HASTYPE ){ + const char *z = aCol[i].zCnName; + z += strlen(z)+1; + printf(" X-%s", z); + break; + } + } + } + if( flg & COLFLAG_PRIMKEY ) printf(" PRIMARY KEY"); + if( flg & COLFLAG_HIDDEN ) printf(" HIDDEN"); +#ifdef COLFLAG_NOEXPAND + if( flg & COLFLAG_NOEXPAND ) printf(" NO-EXPAND"); +#endif + if( flg ) printf(" flags=%04x", flg); + printf("\n"); + fflush(stdout); + sqlite3TreeViewPop(&pView); + } + sqlite3TreeViewPop(&pView); +} + +/* ** Generate a human-readable description of a WITH clause. */ SQLITE_PRIVATE void sqlite3TreeViewWith(TreeView *pView, const With *pWith, u8 moreToFollow){ @@ -30907,7 +32397,7 @@ SQLITE_PRIVATE void sqlite3TreeViewWith(TreeView *pView, const With *pWith, u8 m sqlite3TreeViewLine(pView, "WITH (0x%p)", pWith); } if( pWith->nCte>0 ){ - pView = sqlite3TreeViewPush(pView, 1); + sqlite3TreeViewPush(&pView, moreToFollow); for(i=0; i<pWith->nCte; i++){ StrAccum x; char zLine[1000]; @@ -30923,6 +32413,10 @@ SQLITE_PRIVATE void sqlite3TreeViewWith(TreeView *pView, const With *pWith, u8 m } sqlite3_str_appendf(&x, ")"); } + if( pCte->eM10d!=M10d_Any ){ + sqlite3_str_appendf(&x, " %sMATERIALIZED", + pCte->eM10d==M10d_No ? "NOT " : ""); + } if( pCte->pUse ){ sqlite3_str_appendf(&x, " (pUse=0x%p, nUse=%d)", pCte->pUse, pCte->pUse->nUse); @@ -30930,9 +32424,9 @@ SQLITE_PRIVATE void sqlite3TreeViewWith(TreeView *pView, const With *pWith, u8 m sqlite3StrAccumFinish(&x); sqlite3TreeViewItem(pView, zLine, i<pWith->nCte-1); sqlite3TreeViewSelect(pView, pCte->pSelect, 0); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } } @@ -30941,10 +32435,12 @@ SQLITE_PRIVATE void sqlite3TreeViewWith(TreeView *pView, const With *pWith, u8 m */ SQLITE_PRIVATE void sqlite3TreeViewSrcList(TreeView *pView, const SrcList *pSrc){ int i; + if( pSrc==0 ) return; for(i=0; i<pSrc->nSrc; i++){ const SrcItem *pItem = &pSrc->a[i]; StrAccum x; - char zLine[100]; + int n = 0; + char zLine[1000]; sqlite3StrAccumInit(&x, 0, zLine, sizeof(zLine), 0); x.printfFlags |= SQLITE_PRINTF_INTERNAL; sqlite3_str_appendf(&x, "{%d:*} %!S", pItem->iCursor, pItem); @@ -30952,26 +32448,55 @@ SQLITE_PRIVATE void sqlite3TreeViewSrcList(TreeView *pView, const SrcList *pSrc) sqlite3_str_appendf(&x, " tab=%Q nCol=%d ptr=%p used=%llx", pItem->pTab->zName, pItem->pTab->nCol, pItem->pTab, pItem->colUsed); } - if( pItem->fg.jointype & JT_LEFT ){ + if( (pItem->fg.jointype & (JT_LEFT|JT_RIGHT))==(JT_LEFT|JT_RIGHT) ){ + sqlite3_str_appendf(&x, " FULL-OUTER-JOIN"); + }else if( pItem->fg.jointype & JT_LEFT ){ sqlite3_str_appendf(&x, " LEFT-JOIN"); + }else if( pItem->fg.jointype & JT_RIGHT ){ + sqlite3_str_appendf(&x, " RIGHT-JOIN"); }else if( pItem->fg.jointype & JT_CROSS ){ sqlite3_str_appendf(&x, " CROSS-JOIN"); } + if( pItem->fg.jointype & JT_LTORJ ){ + sqlite3_str_appendf(&x, " LTORJ"); + } if( pItem->fg.fromDDL ){ sqlite3_str_appendf(&x, " DDL"); } if( pItem->fg.isCte ){ sqlite3_str_appendf(&x, " CteUse=0x%p", pItem->u2.pCteUse); } + if( pItem->fg.isOn || (pItem->fg.isUsing==0 && pItem->u3.pOn!=0) ){ + sqlite3_str_appendf(&x, " ON"); + } + if( pItem->fg.isTabFunc ) sqlite3_str_appendf(&x, " isTabFunc"); + if( pItem->fg.isCorrelated ) sqlite3_str_appendf(&x, " isCorrelated"); + if( pItem->fg.isMaterialized ) sqlite3_str_appendf(&x, " isMaterialized"); + if( pItem->fg.viaCoroutine ) sqlite3_str_appendf(&x, " viaCoroutine"); + if( pItem->fg.notCte ) sqlite3_str_appendf(&x, " notCte"); + if( pItem->fg.isNestedFrom ) sqlite3_str_appendf(&x, " isNestedFrom"); + sqlite3StrAccumFinish(&x); sqlite3TreeViewItem(pView, zLine, i<pSrc->nSrc-1); + n = 0; + if( pItem->pSelect ) n++; + if( pItem->fg.isTabFunc ) n++; + if( pItem->fg.isUsing ) n++; + if( pItem->fg.isUsing ){ + sqlite3TreeViewIdList(pView, pItem->u3.pUsing, (--n)>0, "USING"); + } if( pItem->pSelect ){ - sqlite3TreeViewSelect(pView, pItem->pSelect, 0); + if( pItem->pTab ){ + Table *pTab = pItem->pTab; + sqlite3TreeViewColumnList(pView, pTab->aCol, pTab->nCol, 1); + } + assert( (int)pItem->fg.isNestedFrom == IsNestedFrom(pItem->pSelect) ); + sqlite3TreeViewSelect(pView, pItem->pSelect, (--n)>0); } if( pItem->fg.isTabFunc ){ sqlite3TreeViewExprList(pView, pItem->u1.pFuncArg, 0, "func-args:"); } - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } } @@ -30985,11 +32510,11 @@ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 m sqlite3TreeViewLine(pView, "nil-SELECT"); return; } - pView = sqlite3TreeViewPush(pView, moreToFollow); + sqlite3TreeViewPush(&pView, moreToFollow); if( p->pWith ){ sqlite3TreeViewWith(pView, p->pWith, 1); cnt = 1; - sqlite3TreeViewPush(pView, 1); + sqlite3TreeViewPush(&pView, 1); } do{ if( p->selFlags & SF_WhereBegin ){ @@ -31003,7 +32528,7 @@ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 m (int)p->nSelectRow ); } - if( cnt++ ) sqlite3TreeViewPop(pView); + if( cnt++ ) sqlite3TreeViewPop(&pView); if( p->pPrior ){ n = 1000; }else{ @@ -31026,24 +32551,24 @@ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 m #ifndef SQLITE_OMIT_WINDOWFUNC if( p->pWin ){ Window *pX; - pView = sqlite3TreeViewPush(pView, (n--)>0); + sqlite3TreeViewPush(&pView, (n--)>0); sqlite3TreeViewLine(pView, "window-functions"); for(pX=p->pWin; pX; pX=pX->pNextWin){ sqlite3TreeViewWinFunc(pView, pX, pX->pNextWin!=0); } - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } #endif if( p->pSrc && p->pSrc->nSrc ){ - pView = sqlite3TreeViewPush(pView, (n--)>0); + sqlite3TreeViewPush(&pView, (n--)>0); sqlite3TreeViewLine(pView, "FROM"); sqlite3TreeViewSrcList(pView, p->pSrc); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } if( p->pWhere ){ sqlite3TreeViewItem(pView, "WHERE", (n--)>0); sqlite3TreeViewExpr(pView, p->pWhere, 0); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } if( p->pGroupBy ){ sqlite3TreeViewExprList(pView, p->pGroupBy, (n--)>0, "GROUPBY"); @@ -31051,7 +32576,7 @@ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 m if( p->pHaving ){ sqlite3TreeViewItem(pView, "HAVING", (n--)>0); sqlite3TreeViewExpr(pView, p->pHaving, 0); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } #ifndef SQLITE_OMIT_WINDOWFUNC if( p->pWinDefn ){ @@ -31060,7 +32585,7 @@ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 m for(pX=p->pWinDefn; pX; pX=pX->pNextWin){ sqlite3TreeViewWindow(pView, pX, pX->pNextWin!=0); } - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } #endif if( p->pOrderBy ){ @@ -31072,9 +32597,9 @@ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 m if( p->pLimit->pRight ){ sqlite3TreeViewItem(pView, "OFFSET", (n--)>0); sqlite3TreeViewExpr(pView, p->pLimit->pRight, 0); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } if( p->pPrior ){ const char *zOp = "UNION"; @@ -31087,7 +32612,7 @@ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 m } p = p->pPrior; }while( p!=0 ); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } #ifndef SQLITE_OMIT_WINDOWFUNC @@ -31103,24 +32628,24 @@ SQLITE_PRIVATE void sqlite3TreeViewBound( switch( eBound ){ case TK_UNBOUNDED: { sqlite3TreeViewItem(pView, "UNBOUNDED", moreToFollow); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); break; } case TK_CURRENT: { sqlite3TreeViewItem(pView, "CURRENT", moreToFollow); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); break; } case TK_PRECEDING: { sqlite3TreeViewItem(pView, "PRECEDING", moreToFollow); sqlite3TreeViewExpr(pView, pExpr, 0); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); break; } case TK_FOLLOWING: { sqlite3TreeViewItem(pView, "FOLLOWING", moreToFollow); sqlite3TreeViewExpr(pView, pExpr, 0); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); break; } } @@ -31133,12 +32658,14 @@ SQLITE_PRIVATE void sqlite3TreeViewBound( */ SQLITE_PRIVATE void sqlite3TreeViewWindow(TreeView *pView, const Window *pWin, u8 more){ int nElement = 0; + if( pWin==0 ) return; if( pWin->pFilter ){ sqlite3TreeViewItem(pView, "FILTER", 1); sqlite3TreeViewExpr(pView, pWin->pFilter, 0); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); + if( pWin->eFrmType==TK_FILTER ) return; } - pView = sqlite3TreeViewPush(pView, more); + sqlite3TreeViewPush(&pView, more); if( pWin->zName ){ sqlite3TreeViewLine(pView, "OVER %s (%p)", pWin->zName, pWin); }else{ @@ -31146,12 +32673,12 @@ SQLITE_PRIVATE void sqlite3TreeViewWindow(TreeView *pView, const Window *pWin, u } if( pWin->zBase ) nElement++; if( pWin->pOrderBy ) nElement++; - if( pWin->eFrmType ) nElement++; + if( pWin->eFrmType!=0 && pWin->eFrmType!=TK_FILTER ) nElement++; if( pWin->eExclude ) nElement++; if( pWin->zBase ){ - sqlite3TreeViewPush(pView, (--nElement)>0); + sqlite3TreeViewPush(&pView, (--nElement)>0); sqlite3TreeViewLine(pView, "window: %s", pWin->zBase); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } if( pWin->pPartition ){ sqlite3TreeViewExprList(pView, pWin->pPartition, nElement>0,"PARTITION-BY"); @@ -31159,7 +32686,7 @@ SQLITE_PRIVATE void sqlite3TreeViewWindow(TreeView *pView, const Window *pWin, u if( pWin->pOrderBy ){ sqlite3TreeViewExprList(pView, pWin->pOrderBy, (--nElement)>0, "ORDER-BY"); } - if( pWin->eFrmType ){ + if( pWin->eFrmType!=0 && pWin->eFrmType!=TK_FILTER ){ char zBuf[30]; const char *zFrmType = "ROWS"; if( pWin->eFrmType==TK_RANGE ) zFrmType = "RANGE"; @@ -31169,7 +32696,7 @@ SQLITE_PRIVATE void sqlite3TreeViewWindow(TreeView *pView, const Window *pWin, u sqlite3TreeViewItem(pView, zBuf, (--nElement)>0); sqlite3TreeViewBound(pView, pWin->eStart, pWin->pStart, 1); sqlite3TreeViewBound(pView, pWin->eEnd, pWin->pEnd, 0); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } if( pWin->eExclude ){ char zBuf[30]; @@ -31184,11 +32711,11 @@ SQLITE_PRIVATE void sqlite3TreeViewWindow(TreeView *pView, const Window *pWin, u zExclude = zBuf; break; } - sqlite3TreeViewPush(pView, 0); + sqlite3TreeViewPush(&pView, 0); sqlite3TreeViewLine(pView, "EXCLUDE %s", zExclude); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } #endif /* SQLITE_OMIT_WINDOWFUNC */ @@ -31197,11 +32724,12 @@ SQLITE_PRIVATE void sqlite3TreeViewWindow(TreeView *pView, const Window *pWin, u ** Generate a human-readable explanation for a Window Function object */ SQLITE_PRIVATE void sqlite3TreeViewWinFunc(TreeView *pView, const Window *pWin, u8 more){ - pView = sqlite3TreeViewPush(pView, more); + if( pWin==0 ) return; + sqlite3TreeViewPush(&pView, more); sqlite3TreeViewLine(pView, "WINFUNC %s(%d)", - pWin->pFunc->zName, pWin->pFunc->nArg); + pWin->pWFunc->zName, pWin->pWFunc->nArg); sqlite3TreeViewWindow(pView, pWin, 0); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } #endif /* SQLITE_OMIT_WINDOWFUNC */ @@ -31212,19 +32740,22 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m const char *zBinOp = 0; /* Binary operator */ const char *zUniOp = 0; /* Unary operator */ char zFlgs[200]; - pView = sqlite3TreeViewPush(pView, moreToFollow); + sqlite3TreeViewPush(&pView, moreToFollow); if( pExpr==0 ){ sqlite3TreeViewLine(pView, "nil"); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); return; } - if( pExpr->flags || pExpr->affExpr || pExpr->vvaFlags ){ + if( pExpr->flags || pExpr->affExpr || pExpr->vvaFlags || pExpr->pAggInfo ){ StrAccum x; sqlite3StrAccumInit(&x, 0, zFlgs, sizeof(zFlgs), 0); sqlite3_str_appendf(&x, " fg.af=%x.%c", pExpr->flags, pExpr->affExpr ? pExpr->affExpr : 'n'); - if( ExprHasProperty(pExpr, EP_FromJoin) ){ - sqlite3_str_appendf(&x, " iRJT=%d", pExpr->w.iRightJoinTable); + if( ExprHasProperty(pExpr, EP_OuterON) ){ + sqlite3_str_appendf(&x, " outer.iJoin=%d", pExpr->w.iJoin); + } + if( ExprHasProperty(pExpr, EP_InnerON) ){ + sqlite3_str_appendf(&x, " inner.iJoin=%d", pExpr->w.iJoin); } if( ExprHasProperty(pExpr, EP_FromDDL) ){ sqlite3_str_appendf(&x, " DDL"); @@ -31232,6 +32763,9 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m if( ExprHasVVAProperty(pExpr, EP_Immutable) ){ sqlite3_str_appendf(&x, " IMMUTABLE"); } + if( pExpr->pAggInfo!=0 ){ + sqlite3_str_appendf(&x, " agg-column[%d]", pExpr->iAgg); + } sqlite3StrAccumFinish(&x); }else{ zFlgs[0] = 0; @@ -31361,7 +32895,8 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m }; assert( pExpr->op2==TK_IS || pExpr->op2==TK_ISNOT ); assert( pExpr->pRight ); - assert( sqlite3ExprSkipCollate(pExpr->pRight)->op==TK_TRUEFALSE ); + assert( sqlite3ExprSkipCollateAndLikely(pExpr->pRight)->op + == TK_TRUEFALSE ); x = (pExpr->op2==TK_ISNOT)*2 + sqlite3ExprTruthValue(pExpr->pRight); zUniOp = azOp[x]; break; @@ -31399,7 +32934,7 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m assert( ExprUseXList(pExpr) ); pFarg = pExpr->x.pList; #ifndef SQLITE_OMIT_WINDOWFUNC - pWin = ExprHasProperty(pExpr, EP_WinFunc) ? pExpr->y.pWin : 0; + pWin = IsWindowFunc(pExpr) ? pExpr->y.pWin : 0; #else pWin = 0; #endif @@ -31425,7 +32960,13 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m sqlite3TreeViewLine(pView, "FUNCTION %Q%s", pExpr->u.zToken, zFlgs); } if( pFarg ){ - sqlite3TreeViewExprList(pView, pFarg, pWin!=0, 0); + sqlite3TreeViewExprList(pView, pFarg, pWin!=0 || pExpr->pLeft, 0); + if( pExpr->pLeft ){ + Expr *pOB = pExpr->pLeft; + assert( pOB->op==TK_ORDER ); + assert( ExprUseXList(pOB) ); + sqlite3TreeViewExprList(pView, pOB->x.pList, pWin!=0, "ORDERBY"); + } } #ifndef SQLITE_OMIT_WINDOWFUNC if( pWin ){ @@ -31434,6 +32975,10 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m #endif break; } + case TK_ORDER: { + sqlite3TreeViewExprList(pView, pExpr->x.pList, 0, "ORDERBY"); + break; + } #ifndef SQLITE_OMIT_SUBQUERY case TK_EXISTS: { assert( ExprUseXSelect(pExpr) ); @@ -31448,7 +32993,17 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m break; } case TK_IN: { - sqlite3TreeViewLine(pView, "IN flags=0x%x", pExpr->flags); + sqlite3_str *pStr = sqlite3_str_new(0); + char *z; + sqlite3_str_appendf(pStr, "IN flags=0x%x", pExpr->flags); + if( pExpr->iTable ) sqlite3_str_appendf(pStr, " iTable=%d",pExpr->iTable); + if( ExprHasProperty(pExpr, EP_Subrtn) ){ + sqlite3_str_appendf(pStr, " subrtn(%d,%d)", + pExpr->y.sub.regReturn, pExpr->y.sub.iAddr); + } + z = sqlite3_str_finish(pStr); + sqlite3TreeViewLine(pView, z); + sqlite3_free(z); sqlite3TreeViewExpr(pView, pExpr->pLeft, 1); if( ExprUseXSelect(pExpr) ){ sqlite3TreeViewSelect(pView, pExpr->x.pSelect, 0); @@ -31477,7 +33032,7 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m assert( pExpr->x.pList->nExpr==2 ); pY = pExpr->x.pList->a[0].pExpr; pZ = pExpr->x.pList->a[1].pExpr; - sqlite3TreeViewLine(pView, "BETWEEN"); + sqlite3TreeViewLine(pView, "BETWEEN%s", zFlgs); sqlite3TreeViewExpr(pView, pX, 1); sqlite3TreeViewExpr(pView, pY, 1); sqlite3TreeViewExpr(pView, pZ, 0); @@ -31572,7 +33127,7 @@ SQLITE_PRIVATE void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 m sqlite3TreeViewLine(pView, "%s%s", zUniOp, zFlgs); sqlite3TreeViewExpr(pView, pExpr->pLeft, 0); } - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } @@ -31594,13 +33149,25 @@ SQLITE_PRIVATE void sqlite3TreeViewBareExprList( int j = pList->a[i].u.x.iOrderByCol; char *zName = pList->a[i].zEName; int moreToFollow = i<pList->nExpr - 1; - if( pList->a[i].eEName!=ENAME_NAME ) zName = 0; if( j || zName ){ - sqlite3TreeViewPush(pView, moreToFollow); + sqlite3TreeViewPush(&pView, moreToFollow); moreToFollow = 0; sqlite3TreeViewLine(pView, 0); if( zName ){ - fprintf(stdout, "AS %s ", zName); + switch( pList->a[i].fg.eEName ){ + default: + fprintf(stdout, "AS %s ", zName); + break; + case ENAME_TAB: + fprintf(stdout, "TABLE-ALIAS-NAME(\"%s\") ", zName); + if( pList->a[i].fg.bUsed ) fprintf(stdout, "(used) "); + if( pList->a[i].fg.bUsingTerm ) fprintf(stdout, "(USING-term) "); + if( pList->a[i].fg.bNoExpand ) fprintf(stdout, "(NoExpand) "); + break; + case ENAME_SPAN: + fprintf(stdout, "SPAN(\"%s\") ", zName); + break; + } } if( j ){ fprintf(stdout, "iOrderByCol=%d", j); @@ -31610,7 +33177,7 @@ SQLITE_PRIVATE void sqlite3TreeViewBareExprList( } sqlite3TreeViewExpr(pView, pList->a[i].pExpr, moreToFollow); if( j || zName ){ - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } } } @@ -31621,11 +33188,378 @@ SQLITE_PRIVATE void sqlite3TreeViewExprList( u8 moreToFollow, const char *zLabel ){ - pView = sqlite3TreeViewPush(pView, moreToFollow); + sqlite3TreeViewPush(&pView, moreToFollow); sqlite3TreeViewBareExprList(pView, pList, zLabel); - sqlite3TreeViewPop(pView); + sqlite3TreeViewPop(&pView); } +/* +** Generate a human-readable explanation of an id-list. +*/ +SQLITE_PRIVATE void sqlite3TreeViewBareIdList( + TreeView *pView, + const IdList *pList, + const char *zLabel +){ + if( zLabel==0 || zLabel[0]==0 ) zLabel = "LIST"; + if( pList==0 ){ + sqlite3TreeViewLine(pView, "%s (empty)", zLabel); + }else{ + int i; + sqlite3TreeViewLine(pView, "%s", zLabel); + for(i=0; i<pList->nId; i++){ + char *zName = pList->a[i].zName; + int moreToFollow = i<pList->nId - 1; + if( zName==0 ) zName = "(null)"; + sqlite3TreeViewPush(&pView, moreToFollow); + sqlite3TreeViewLine(pView, 0); + if( pList->eU4==EU4_NONE ){ + fprintf(stdout, "%s\n", zName); + }else if( pList->eU4==EU4_IDX ){ + fprintf(stdout, "%s (%d)\n", zName, pList->a[i].u4.idx); + }else{ + assert( pList->eU4==EU4_EXPR ); + if( pList->a[i].u4.pExpr==0 ){ + fprintf(stdout, "%s (pExpr=NULL)\n", zName); + }else{ + fprintf(stdout, "%s\n", zName); + sqlite3TreeViewPush(&pView, i<pList->nId-1); + sqlite3TreeViewExpr(pView, pList->a[i].u4.pExpr, 0); + sqlite3TreeViewPop(&pView); + } + } + sqlite3TreeViewPop(&pView); + } + } +} +SQLITE_PRIVATE void sqlite3TreeViewIdList( + TreeView *pView, + const IdList *pList, + u8 moreToFollow, + const char *zLabel +){ + sqlite3TreeViewPush(&pView, moreToFollow); + sqlite3TreeViewBareIdList(pView, pList, zLabel); + sqlite3TreeViewPop(&pView); +} + +/* +** Generate a human-readable explanation of a list of Upsert objects +*/ +SQLITE_PRIVATE void sqlite3TreeViewUpsert( + TreeView *pView, + const Upsert *pUpsert, + u8 moreToFollow +){ + if( pUpsert==0 ) return; + sqlite3TreeViewPush(&pView, moreToFollow); + while( pUpsert ){ + int n; + sqlite3TreeViewPush(&pView, pUpsert->pNextUpsert!=0 || moreToFollow); + sqlite3TreeViewLine(pView, "ON CONFLICT DO %s", + pUpsert->isDoUpdate ? "UPDATE" : "NOTHING"); + n = (pUpsert->pUpsertSet!=0) + (pUpsert->pUpsertWhere!=0); + sqlite3TreeViewExprList(pView, pUpsert->pUpsertTarget, (n--)>0, "TARGET"); + sqlite3TreeViewExprList(pView, pUpsert->pUpsertSet, (n--)>0, "SET"); + if( pUpsert->pUpsertWhere ){ + sqlite3TreeViewItem(pView, "WHERE", (n--)>0); + sqlite3TreeViewExpr(pView, pUpsert->pUpsertWhere, 0); + sqlite3TreeViewPop(&pView); + } + sqlite3TreeViewPop(&pView); + pUpsert = pUpsert->pNextUpsert; + } + sqlite3TreeViewPop(&pView); +} + +#if TREETRACE_ENABLED +/* +** Generate a human-readable diagram of the data structure that go +** into generating an DELETE statement. +*/ +SQLITE_PRIVATE void sqlite3TreeViewDelete( + const With *pWith, + const SrcList *pTabList, + const Expr *pWhere, + const ExprList *pOrderBy, + const Expr *pLimit, + const Trigger *pTrigger +){ + int n = 0; + TreeView *pView = 0; + sqlite3TreeViewPush(&pView, 0); + sqlite3TreeViewLine(pView, "DELETE"); + if( pWith ) n++; + if( pTabList ) n++; + if( pWhere ) n++; + if( pOrderBy ) n++; + if( pLimit ) n++; + if( pTrigger ) n++; + if( pWith ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewWith(pView, pWith, 0); + sqlite3TreeViewPop(&pView); + } + if( pTabList ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewLine(pView, "FROM"); + sqlite3TreeViewSrcList(pView, pTabList); + sqlite3TreeViewPop(&pView); + } + if( pWhere ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewLine(pView, "WHERE"); + sqlite3TreeViewExpr(pView, pWhere, 0); + sqlite3TreeViewPop(&pView); + } + if( pOrderBy ){ + sqlite3TreeViewExprList(pView, pOrderBy, (--n)>0, "ORDER-BY"); + } + if( pLimit ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewLine(pView, "LIMIT"); + sqlite3TreeViewExpr(pView, pLimit, 0); + sqlite3TreeViewPop(&pView); + } + if( pTrigger ){ + sqlite3TreeViewTrigger(pView, pTrigger, (--n)>0, 1); + } + sqlite3TreeViewPop(&pView); +} +#endif /* TREETRACE_ENABLED */ + +#if TREETRACE_ENABLED +/* +** Generate a human-readable diagram of the data structure that go +** into generating an INSERT statement. +*/ +SQLITE_PRIVATE void sqlite3TreeViewInsert( + const With *pWith, + const SrcList *pTabList, + const IdList *pColumnList, + const Select *pSelect, + const ExprList *pExprList, + int onError, + const Upsert *pUpsert, + const Trigger *pTrigger +){ + TreeView *pView = 0; + int n = 0; + const char *zLabel = "INSERT"; + switch( onError ){ + case OE_Replace: zLabel = "REPLACE"; break; + case OE_Ignore: zLabel = "INSERT OR IGNORE"; break; + case OE_Rollback: zLabel = "INSERT OR ROLLBACK"; break; + case OE_Abort: zLabel = "INSERT OR ABORT"; break; + case OE_Fail: zLabel = "INSERT OR FAIL"; break; + } + sqlite3TreeViewPush(&pView, 0); + sqlite3TreeViewLine(pView, zLabel); + if( pWith ) n++; + if( pTabList ) n++; + if( pColumnList ) n++; + if( pSelect ) n++; + if( pExprList ) n++; + if( pUpsert ) n++; + if( pTrigger ) n++; + if( pWith ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewWith(pView, pWith, 0); + sqlite3TreeViewPop(&pView); + } + if( pTabList ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewLine(pView, "INTO"); + sqlite3TreeViewSrcList(pView, pTabList); + sqlite3TreeViewPop(&pView); + } + if( pColumnList ){ + sqlite3TreeViewIdList(pView, pColumnList, (--n)>0, "COLUMNS"); + } + if( pSelect ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewLine(pView, "DATA-SOURCE"); + sqlite3TreeViewSelect(pView, pSelect, 0); + sqlite3TreeViewPop(&pView); + } + if( pExprList ){ + sqlite3TreeViewExprList(pView, pExprList, (--n)>0, "VALUES"); + } + if( pUpsert ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewLine(pView, "UPSERT"); + sqlite3TreeViewUpsert(pView, pUpsert, 0); + sqlite3TreeViewPop(&pView); + } + if( pTrigger ){ + sqlite3TreeViewTrigger(pView, pTrigger, (--n)>0, 1); + } + sqlite3TreeViewPop(&pView); +} +#endif /* TREETRACE_ENABLED */ + +#if TREETRACE_ENABLED +/* +** Generate a human-readable diagram of the data structure that go +** into generating an UPDATE statement. +*/ +SQLITE_PRIVATE void sqlite3TreeViewUpdate( + const With *pWith, + const SrcList *pTabList, + const ExprList *pChanges, + const Expr *pWhere, + int onError, + const ExprList *pOrderBy, + const Expr *pLimit, + const Upsert *pUpsert, + const Trigger *pTrigger +){ + int n = 0; + TreeView *pView = 0; + const char *zLabel = "UPDATE"; + switch( onError ){ + case OE_Replace: zLabel = "UPDATE OR REPLACE"; break; + case OE_Ignore: zLabel = "UPDATE OR IGNORE"; break; + case OE_Rollback: zLabel = "UPDATE OR ROLLBACK"; break; + case OE_Abort: zLabel = "UPDATE OR ABORT"; break; + case OE_Fail: zLabel = "UPDATE OR FAIL"; break; + } + sqlite3TreeViewPush(&pView, 0); + sqlite3TreeViewLine(pView, zLabel); + if( pWith ) n++; + if( pTabList ) n++; + if( pChanges ) n++; + if( pWhere ) n++; + if( pOrderBy ) n++; + if( pLimit ) n++; + if( pUpsert ) n++; + if( pTrigger ) n++; + if( pWith ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewWith(pView, pWith, 0); + sqlite3TreeViewPop(&pView); + } + if( pTabList ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewLine(pView, "FROM"); + sqlite3TreeViewSrcList(pView, pTabList); + sqlite3TreeViewPop(&pView); + } + if( pChanges ){ + sqlite3TreeViewExprList(pView, pChanges, (--n)>0, "SET"); + } + if( pWhere ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewLine(pView, "WHERE"); + sqlite3TreeViewExpr(pView, pWhere, 0); + sqlite3TreeViewPop(&pView); + } + if( pOrderBy ){ + sqlite3TreeViewExprList(pView, pOrderBy, (--n)>0, "ORDER-BY"); + } + if( pLimit ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewLine(pView, "LIMIT"); + sqlite3TreeViewExpr(pView, pLimit, 0); + sqlite3TreeViewPop(&pView); + } + if( pUpsert ){ + sqlite3TreeViewPush(&pView, (--n)>0); + sqlite3TreeViewLine(pView, "UPSERT"); + sqlite3TreeViewUpsert(pView, pUpsert, 0); + sqlite3TreeViewPop(&pView); + } + if( pTrigger ){ + sqlite3TreeViewTrigger(pView, pTrigger, (--n)>0, 1); + } + sqlite3TreeViewPop(&pView); +} +#endif /* TREETRACE_ENABLED */ + +#ifndef SQLITE_OMIT_TRIGGER +/* +** Show a human-readable graph of a TriggerStep +*/ +SQLITE_PRIVATE void sqlite3TreeViewTriggerStep( + TreeView *pView, + const TriggerStep *pStep, + u8 moreToFollow, + u8 showFullList +){ + int cnt = 0; + if( pStep==0 ) return; + sqlite3TreeViewPush(&pView, + moreToFollow || (showFullList && pStep->pNext!=0)); + do{ + if( cnt++ && pStep->pNext==0 ){ + sqlite3TreeViewPop(&pView); + sqlite3TreeViewPush(&pView, 0); + } + sqlite3TreeViewLine(pView, "%s", pStep->zSpan ? pStep->zSpan : "RETURNING"); + }while( showFullList && (pStep = pStep->pNext)!=0 ); + sqlite3TreeViewPop(&pView); +} + +/* +** Show a human-readable graph of a Trigger +*/ +SQLITE_PRIVATE void sqlite3TreeViewTrigger( + TreeView *pView, + const Trigger *pTrigger, + u8 moreToFollow, + u8 showFullList +){ + int cnt = 0; + if( pTrigger==0 ) return; + sqlite3TreeViewPush(&pView, + moreToFollow || (showFullList && pTrigger->pNext!=0)); + do{ + if( cnt++ && pTrigger->pNext==0 ){ + sqlite3TreeViewPop(&pView); + sqlite3TreeViewPush(&pView, 0); + } + sqlite3TreeViewLine(pView, "TRIGGER %s", pTrigger->zName); + sqlite3TreeViewPush(&pView, 0); + sqlite3TreeViewTriggerStep(pView, pTrigger->step_list, 0, 1); + sqlite3TreeViewPop(&pView); + }while( showFullList && (pTrigger = pTrigger->pNext)!=0 ); + sqlite3TreeViewPop(&pView); +} +#endif /* SQLITE_OMIT_TRIGGER */ + + +/* +** These simplified versions of the tree-view routines omit unnecessary +** parameters. These variants are intended to be used from a symbolic +** debugger, such as "gdb", during interactive debugging sessions. +** +** This routines are given external linkage so that they will always be +** accessible to the debugging, and to avoid warnings about unused +** functions. But these routines only exist in debugging builds, so they +** do not contaminate the interface. +*/ +SQLITE_PRIVATE void sqlite3ShowExpr(const Expr *p){ sqlite3TreeViewExpr(0,p,0); } +SQLITE_PRIVATE void sqlite3ShowExprList(const ExprList *p){ sqlite3TreeViewExprList(0,p,0,0);} +SQLITE_PRIVATE void sqlite3ShowIdList(const IdList *p){ sqlite3TreeViewIdList(0,p,0,0); } +SQLITE_PRIVATE void sqlite3ShowSrcList(const SrcList *p){ sqlite3TreeViewSrcList(0,p); } +SQLITE_PRIVATE void sqlite3ShowSelect(const Select *p){ sqlite3TreeViewSelect(0,p,0); } +SQLITE_PRIVATE void sqlite3ShowWith(const With *p){ sqlite3TreeViewWith(0,p,0); } +SQLITE_PRIVATE void sqlite3ShowUpsert(const Upsert *p){ sqlite3TreeViewUpsert(0,p,0); } +#ifndef SQLITE_OMIT_TRIGGER +SQLITE_PRIVATE void sqlite3ShowTriggerStep(const TriggerStep *p){ + sqlite3TreeViewTriggerStep(0,p,0,0); +} +SQLITE_PRIVATE void sqlite3ShowTriggerStepList(const TriggerStep *p){ + sqlite3TreeViewTriggerStep(0,p,0,1); +} +SQLITE_PRIVATE void sqlite3ShowTrigger(const Trigger *p){ sqlite3TreeViewTrigger(0,p,0,0); } +SQLITE_PRIVATE void sqlite3ShowTriggerList(const Trigger *p){ sqlite3TreeViewTrigger(0,p,0,1);} +#endif +#ifndef SQLITE_OMIT_WINDOWFUNC +SQLITE_PRIVATE void sqlite3ShowWindow(const Window *p){ sqlite3TreeViewWindow(0,p,0); } +SQLITE_PRIVATE void sqlite3ShowWinFunc(const Window *p){ sqlite3TreeViewWinFunc(0,p,0); } +#endif + #endif /* SQLITE_DEBUG */ /************** End of treeview.c ********************************************/ @@ -31654,16 +33588,41 @@ SQLITE_PRIVATE void sqlite3TreeViewExprList( ** This structure is the current state of the generator. */ static SQLITE_WSD struct sqlite3PrngType { - unsigned char isInit; /* True if initialized */ - unsigned char i, j; /* State variables */ - unsigned char s[256]; /* State variables */ + u32 s[16]; /* 64 bytes of chacha20 state */ + u8 out[64]; /* Output bytes */ + u8 n; /* Output bytes remaining */ } sqlite3Prng; + +/* The RFC-7539 ChaCha20 block function +*/ +#define ROTL(a,b) (((a) << (b)) | ((a) >> (32 - (b)))) +#define QR(a, b, c, d) ( \ + a += b, d ^= a, d = ROTL(d,16), \ + c += d, b ^= c, b = ROTL(b,12), \ + a += b, d ^= a, d = ROTL(d, 8), \ + c += d, b ^= c, b = ROTL(b, 7)) +static void chacha_block(u32 *out, const u32 *in){ + int i; + u32 x[16]; + memcpy(x, in, 64); + for(i=0; i<10; i++){ + QR(x[0], x[4], x[ 8], x[12]); + QR(x[1], x[5], x[ 9], x[13]); + QR(x[2], x[6], x[10], x[14]); + QR(x[3], x[7], x[11], x[15]); + QR(x[0], x[5], x[10], x[15]); + QR(x[1], x[6], x[11], x[12]); + QR(x[2], x[7], x[ 8], x[13]); + QR(x[3], x[4], x[ 9], x[14]); + } + for(i=0; i<16; i++) out[i] = x[i]+in[i]; +} + /* ** Return N random bytes. */ SQLITE_API void sqlite3_randomness(int N, void *pBuf){ - unsigned char t; unsigned char *zBuf = pBuf; /* The "wsdPrng" macro will resolve to the pseudo-random number generator @@ -31693,53 +33652,46 @@ SQLITE_API void sqlite3_randomness(int N, void *pBuf){ sqlite3_mutex_enter(mutex); if( N<=0 || pBuf==0 ){ - wsdPrng.isInit = 0; + wsdPrng.s[0] = 0; sqlite3_mutex_leave(mutex); return; } /* Initialize the state of the random number generator once, - ** the first time this routine is called. The seed value does - ** not need to contain a lot of randomness since we are not - ** trying to do secure encryption or anything like that... - ** - ** Nothing in this file or anywhere else in SQLite does any kind of - ** encryption. The RC4 algorithm is being used as a PRNG (pseudo-random - ** number generator) not as an encryption device. + ** the first time this routine is called. */ - if( !wsdPrng.isInit ){ + if( wsdPrng.s[0]==0 ){ sqlite3_vfs *pVfs = sqlite3_vfs_find(0); - int i; - char k[256]; - wsdPrng.j = 0; - wsdPrng.i = 0; + static const u32 chacha20_init[] = { + 0x61707865, 0x3320646e, 0x79622d32, 0x6b206574 + }; + memcpy(&wsdPrng.s[0], chacha20_init, 16); if( NEVER(pVfs==0) ){ - memset(k, 0, sizeof(k)); + memset(&wsdPrng.s[4], 0, 44); }else{ - sqlite3OsRandomness(pVfs, 256, k); + sqlite3OsRandomness(pVfs, 44, (char*)&wsdPrng.s[4]); } - for(i=0; i<256; i++){ - wsdPrng.s[i] = (u8)i; - } - for(i=0; i<256; i++){ - wsdPrng.j += wsdPrng.s[i] + k[i]; - t = wsdPrng.s[wsdPrng.j]; - wsdPrng.s[wsdPrng.j] = wsdPrng.s[i]; - wsdPrng.s[i] = t; - } - wsdPrng.isInit = 1; + wsdPrng.s[15] = wsdPrng.s[12]; + wsdPrng.s[12] = 0; + wsdPrng.n = 0; } assert( N>0 ); - do{ - wsdPrng.i++; - t = wsdPrng.s[wsdPrng.i]; - wsdPrng.j += t; - wsdPrng.s[wsdPrng.i] = wsdPrng.s[wsdPrng.j]; - wsdPrng.s[wsdPrng.j] = t; - t += wsdPrng.s[wsdPrng.i]; - *(zBuf++) = wsdPrng.s[t]; - }while( --N ); + while( 1 /* exit by break */ ){ + if( N<=wsdPrng.n ){ + memcpy(zBuf, &wsdPrng.out[wsdPrng.n-N], N); + wsdPrng.n -= N; + break; + } + if( wsdPrng.n>0 ){ + memcpy(zBuf, wsdPrng.out, wsdPrng.n); + N -= wsdPrng.n; + zBuf += wsdPrng.n; + } + wsdPrng.s[12]++; + chacha_block((u32*)wsdPrng.out, wsdPrng.s); + wsdPrng.n = 64; + } sqlite3_mutex_leave(mutex); } @@ -32215,7 +34167,38 @@ SQLITE_PRIVATE u32 sqlite3Utf8Read( return c; } - +/* +** Read a single UTF8 character out of buffer z[], but reading no +** more than n characters from the buffer. z[] is not zero-terminated. +** +** Return the number of bytes used to construct the character. +** +** Invalid UTF8 might generate a strange result. No effort is made +** to detect invalid UTF8. +** +** At most 4 bytes will be read out of z[]. The return value will always +** be between 1 and 4. +*/ +SQLITE_PRIVATE int sqlite3Utf8ReadLimited( + const u8 *z, + int n, + u32 *piOut +){ + u32 c; + int i = 1; + assert( n>0 ); + c = z[0]; + if( c>=0xc0 ){ + c = sqlite3Utf8Trans1[c-0xc0]; + if( n>4 ) n = 4; + while( i<n && (z[i] & 0xc0)==0x80 ){ + c = (c<<6) + (0x3f & z[i]); + i++; + } + } + *piOut = c; + return i; +} /* @@ -32613,7 +34596,7 @@ SQLITE_PRIVATE void sqlite3UtfSelfTest(void){ /* ** Calls to sqlite3FaultSim() are used to simulate a failure during testing, ** or to bypass normal error detection during testing in order to let -** execute proceed futher downstream. +** execute proceed further downstream. ** ** In deployment, sqlite3FaultSim() *always* return SQLITE_OK (0). The ** sqlite3FaultSim() function only returns non-zero during testing. @@ -32730,6 +34713,23 @@ SQLITE_PRIVATE void sqlite3ErrorClear(sqlite3 *db){ */ SQLITE_PRIVATE void sqlite3SystemError(sqlite3 *db, int rc){ if( rc==SQLITE_IOERR_NOMEM ) return; +#if defined(SQLITE_USE_SEH) && !defined(SQLITE_OMIT_WAL) + if( rc==SQLITE_IOERR_IN_PAGE ){ + int ii; + int iErr; + sqlite3BtreeEnterAll(db); + for(ii=0; ii<db->nDb; ii++){ + if( db->aDb[ii].pBt ){ + iErr = sqlite3PagerWalSystemErrno(sqlite3BtreePager(db->aDb[ii].pBt)); + if( iErr ){ + db->iSysErrno = iErr; + } + } + } + sqlite3BtreeLeaveAll(db); + return; + } +#endif rc &= 0xff; if( rc==SQLITE_CANTOPEN || rc==SQLITE_IOERR ){ db->iSysErrno = sqlite3OsGetLastError(db->pVfs); @@ -32765,6 +34765,30 @@ SQLITE_PRIVATE void sqlite3ErrorWithMsg(sqlite3 *db, int err_code, const char *z } /* +** Check for interrupts and invoke progress callback. +*/ +SQLITE_PRIVATE void sqlite3ProgressCheck(Parse *p){ + sqlite3 *db = p->db; + if( AtomicLoad(&db->u1.isInterrupted) ){ + p->nErr++; + p->rc = SQLITE_INTERRUPT; + } +#ifndef SQLITE_OMIT_PROGRESS_CALLBACK + if( db->xProgress ){ + if( p->rc==SQLITE_INTERRUPT ){ + p->nProgressSteps = 0; + }else if( (++p->nProgressSteps)>=db->nProgressOps ){ + if( db->xProgress(db->pProgressArg) ){ + p->nErr++; + p->rc = SQLITE_INTERRUPT; + } + p->nProgressSteps = 0; + } + } +#endif +} + +/* ** Add an error message to pParse->zErrMsg and increment pParse->nErr. ** ** This function should be used to report any error that occurs while @@ -32779,7 +34803,7 @@ SQLITE_PRIVATE void sqlite3ErrorMsg(Parse *pParse, const char *zFormat, ...){ va_list ap; sqlite3 *db = pParse->db; assert( db!=0 ); - assert( db->pParse==pParse ); + assert( db->pParse==pParse || db->pParse->pToplevel==pParse ); db->errByteOffset = -2; va_start(ap, zFormat); zMsg = sqlite3VMPrintf(db, zFormat, ap); @@ -32955,43 +34979,40 @@ SQLITE_PRIVATE u8 sqlite3StrIHash(const char *z){ return h; } -/* -** Compute 10 to the E-th power. Examples: E==1 results in 10. -** E==2 results in 100. E==50 results in 1.0e50. +/* Double-Double multiplication. (x[0],x[1]) *= (y,yy) ** -** This routine only works for values of E between 1 and 341. +** Reference: +** T. J. Dekker, "A Floating-Point Technique for Extending the +** Available Precision". 1971-07-26. */ -static LONGDOUBLE_TYPE sqlite3Pow10(int E){ -#if defined(_MSC_VER) - static const LONGDOUBLE_TYPE x[] = { - 1.0e+001L, - 1.0e+002L, - 1.0e+004L, - 1.0e+008L, - 1.0e+016L, - 1.0e+032L, - 1.0e+064L, - 1.0e+128L, - 1.0e+256L - }; - LONGDOUBLE_TYPE r = 1.0; - int i; - assert( E>=0 && E<=307 ); - for(i=0; E!=0; i++, E >>=1){ - if( E & 1 ) r *= x[i]; - } - return r; -#else - LONGDOUBLE_TYPE x = 10.0; - LONGDOUBLE_TYPE r = 1.0; - while(1){ - if( E & 1 ) r *= x; - E >>= 1; - if( E==0 ) break; - x *= x; - } - return r; -#endif +static void dekkerMul2(volatile double *x, double y, double yy){ + /* + ** The "volatile" keywords on parameter x[] and on local variables + ** below are needed force intermediate results to be truncated to + ** binary64 rather than be carried around in an extended-precision + ** format. The truncation is necessary for the Dekker algorithm to + ** work. Intel x86 floating point might omit the truncation without + ** the use of volatile. + */ + volatile double tx, ty, p, q, c, cc; + double hx, hy; + u64 m; + memcpy(&m, (void*)&x[0], 8); + m &= 0xfffffffffc000000LL; + memcpy(&hx, &m, 8); + tx = x[0] - hx; + memcpy(&m, &y, 8); + m &= 0xfffffffffc000000LL; + memcpy(&hy, &m, 8); + ty = y - hy; + p = hx*hy; + q = hx*ty + tx*hy; + c = p+q; + cc = p - c + q + tx*ty; + cc = x[0]*yy + x[1]*y + cc; + x[0] = c + cc; + x[1] = c - x[0]; + x[1] += cc; } /* @@ -33032,12 +35053,11 @@ SQLITE_PRIVATE int sqlite3AtoF(const char *z, double *pResult, int length, u8 en const char *zEnd; /* sign * significand * (10 ^ (esign * exponent)) */ int sign = 1; /* sign of significand */ - i64 s = 0; /* significand */ + u64 s = 0; /* significand */ int d = 0; /* adjust exponent for shifting decimal point */ int esign = 1; /* sign of exponent */ int e = 0; /* exponent */ int eValid = 1; /* True exponent is either not used or is well-formed */ - double result; int nDigit = 0; /* Number of digits processed */ int eType = 1; /* 1: pure integer, 2+: fractional -1 or less: bad UTF16 */ @@ -33077,7 +35097,7 @@ SQLITE_PRIVATE int sqlite3AtoF(const char *z, double *pResult, int length, u8 en while( z<zEnd && sqlite3Isdigit(*z) ){ s = s*10 + (*z - '0'); z+=incr; nDigit++; - if( s>=((LARGEST_INT64-9)/10) ){ + if( s>=((LARGEST_UINT64-9)/10) ){ /* skip non-significant significand digits ** (increase exponent by d to shift decimal left) */ while( z<zEnd && sqlite3Isdigit(*z) ){ z+=incr; d++; } @@ -33092,7 +35112,7 @@ SQLITE_PRIVATE int sqlite3AtoF(const char *z, double *pResult, int length, u8 en /* copy digits from after decimal to significand ** (decrease exponent by d to shift decimal right) */ while( z<zEnd && sqlite3Isdigit(*z) ){ - if( s<((LARGEST_INT64-9)/10) ){ + if( s<((LARGEST_UINT64-9)/10) ){ s = s*10 + (*z - '0'); d--; nDigit++; @@ -33132,79 +35152,89 @@ SQLITE_PRIVATE int sqlite3AtoF(const char *z, double *pResult, int length, u8 en while( z<zEnd && sqlite3Isspace(*z) ) z+=incr; do_atof_calc: - /* adjust exponent by d, and update sign */ - e = (e*esign) + d; - if( e<0 ) { - esign = -1; - e *= -1; - } else { - esign = 1; + /* Zero is a special case */ + if( s==0 ){ + *pResult = sign<0 ? -0.0 : +0.0; + goto atof_return; } - if( s==0 ) { - /* In the IEEE 754 standard, zero is signed. */ - result = sign<0 ? -(double)0 : (double)0; - } else { - /* Attempt to reduce exponent. - ** - ** Branches that are not required for the correct answer but which only - ** help to obtain the correct answer faster are marked with special - ** comments, as a hint to the mutation tester. - */ - while( e>0 ){ /*OPTIMIZATION-IF-TRUE*/ - if( esign>0 ){ - if( s>=(LARGEST_INT64/10) ) break; /*OPTIMIZATION-IF-FALSE*/ - s *= 10; - }else{ - if( s%10!=0 ) break; /*OPTIMIZATION-IF-FALSE*/ - s /= 10; - } - e--; - } + /* adjust exponent by d, and update sign */ + e = (e*esign) + d; - /* adjust the sign of significand */ - s = sign<0 ? -s : s; + /* Try to adjust the exponent to make it smaller */ + while( e>0 && s<(LARGEST_UINT64/10) ){ + s *= 10; + e--; + } + while( e<0 && (s%10)==0 ){ + s /= 10; + e++; + } - if( e==0 ){ /*OPTIMIZATION-IF-TRUE*/ - result = (double)s; + if( e==0 ){ + *pResult = s; + }else if( sqlite3Config.bUseLongDouble ){ + LONGDOUBLE_TYPE r = (LONGDOUBLE_TYPE)s; + if( e>0 ){ + while( e>=100 ){ e-=100; r *= 1.0e+100L; } + while( e>=10 ){ e-=10; r *= 1.0e+10L; } + while( e>=1 ){ e-=1; r *= 1.0e+01L; } }else{ - /* attempt to handle extremely small/large numbers better */ - if( e>307 ){ /*OPTIMIZATION-IF-TRUE*/ - if( e<342 ){ /*OPTIMIZATION-IF-TRUE*/ - LONGDOUBLE_TYPE scale = sqlite3Pow10(e-308); - if( esign<0 ){ - result = s / scale; - result /= 1.0e+308; - }else{ - result = s * scale; - result *= 1.0e+308; - } - }else{ assert( e>=342 ); - if( esign<0 ){ - result = 0.0*s; - }else{ + while( e<=-100 ){ e+=100; r *= 1.0e-100L; } + while( e<=-10 ){ e+=10; r *= 1.0e-10L; } + while( e<=-1 ){ e+=1; r *= 1.0e-01L; } + } + assert( r>=0.0 ); + if( r>+1.7976931348623157081452742373e+308L ){ #ifdef INFINITY - result = INFINITY*s; + *pResult = +INFINITY; #else - result = 1e308*1e308*s; /* Infinity */ + *pResult = 1.0e308*10.0; #endif - } - } - }else{ - LONGDOUBLE_TYPE scale = sqlite3Pow10(e); - if( esign<0 ){ - result = s / scale; - }else{ - result = s * scale; - } + }else{ + *pResult = (double)r; + } + }else{ + double rr[2]; + u64 s2; + rr[0] = (double)s; + s2 = (u64)rr[0]; + rr[1] = s>=s2 ? (double)(s - s2) : -(double)(s2 - s); + if( e>0 ){ + while( e>=100 ){ + e -= 100; + dekkerMul2(rr, 1.0e+100, -1.5902891109759918046e+83); + } + while( e>=10 ){ + e -= 10; + dekkerMul2(rr, 1.0e+10, 0.0); + } + while( e>=1 ){ + e -= 1; + dekkerMul2(rr, 1.0e+01, 0.0); + } + }else{ + while( e<=-100 ){ + e += 100; + dekkerMul2(rr, 1.0e-100, -1.99918998026028836196e-117); + } + while( e<=-10 ){ + e += 10; + dekkerMul2(rr, 1.0e-10, -3.6432197315497741579e-27); + } + while( e<=-1 ){ + e += 1; + dekkerMul2(rr, 1.0e-01, -5.5511151231257827021e-18); } } + *pResult = rr[0]+rr[1]; + if( sqlite3IsNaN(*pResult) ) *pResult = 1e300*1e300; } + if( sign<0 ) *pResult = -*pResult; + assert( !sqlite3IsNaN(*pResult) ); - /* store the result */ - *pResult = result; - - /* return true if number and no extra non-whitespace chracters after */ +atof_return: + /* return true if number and no extra non-whitespace characters after */ if( z==zEnd && nDigit>0 && eValid && eType>0 ){ return eType; }else if( eType>=2 && (eType==3 || eValid) && nDigit>0 ){ @@ -33221,11 +35251,14 @@ do_atof_calc: #endif /* -** Render an signed 64-bit integer as text. Store the result in zOut[]. +** Render an signed 64-bit integer as text. Store the result in zOut[] and +** return the length of the string that was stored, in bytes. The value +** returned does not include the zero terminator at the end of the output +** string. ** ** The caller must ensure that zOut[] is at least 21 bytes in size. */ -SQLITE_PRIVATE void sqlite3Int64ToText(i64 v, char *zOut){ +SQLITE_PRIVATE int sqlite3Int64ToText(i64 v, char *zOut){ int i; u64 x; char zTemp[22]; @@ -33236,12 +35269,15 @@ SQLITE_PRIVATE void sqlite3Int64ToText(i64 v, char *zOut){ } i = sizeof(zTemp)-2; zTemp[sizeof(zTemp)-1] = 0; - do{ - zTemp[i--] = (x%10) + '0'; + while( 1 /*exit-by-break*/ ){ + zTemp[i] = (x%10) + '0'; x = x/10; - }while( x ); - if( v<0 ) zTemp[i--] = '-'; - memcpy(zOut, &zTemp[i+1], sizeof(zTemp)-1-i); + if( x==0 ) break; + i--; + }; + if( v<0 ) zTemp[--i] = '-'; + memcpy(zOut, &zTemp[i], sizeof(zTemp)-i); + return sizeof(zTemp)-1-i; } /* @@ -33334,7 +35370,7 @@ SQLITE_PRIVATE int sqlite3Atoi64(const char *zNum, i64 *pNum, int length, u8 enc /* This test and assignment is needed only to suppress UB warnings ** from clang and -fsanitize=undefined. This test and assignment make ** the code a little larger and slower, and no harm comes from omitting - ** them, but we must appaise the undefined-behavior pharisees. */ + ** them, but we must appease the undefined-behavior pharisees. */ *pNum = neg ? SMALLEST_INT64 : LARGEST_INT64; }else if( neg ){ *pNum = -(i64)u; @@ -33406,11 +35442,15 @@ SQLITE_PRIVATE int sqlite3DecOrHexToI64(const char *z, i64 *pOut){ u = u*16 + sqlite3HexToInt(z[k]); } memcpy(pOut, &u, 8); - return (z[k]==0 && k-i<=16) ? 0 : 2; + if( k-i>16 ) return 2; + if( z[k]!=0 ) return 1; + return 0; }else #endif /* SQLITE_OMIT_HEX_INTEGER */ { - return sqlite3Atoi64(z, pOut, sqlite3Strlen30(z), SQLITE_UTF8); + int n = (int)(0x3fffffff&strspn(z,"+- \n\t0123456789")); + if( z[n] ) n++; + return sqlite3Atoi64(z, pOut, n, SQLITE_UTF8); } } @@ -33442,7 +35482,7 @@ SQLITE_PRIVATE int sqlite3GetInt32(const char *zNum, int *pValue){ u32 u = 0; zNum += 2; while( zNum[0]=='0' ) zNum++; - for(i=0; sqlite3Isxdigit(zNum[i]) && i<8; i++){ + for(i=0; i<8 && sqlite3Isxdigit(zNum[i]); i++){ u = u*16 + sqlite3HexToInt(zNum[i]); } if( (u&0x80000000)==0 && sqlite3Isxdigit(zNum[i])==0 ){ @@ -33490,6 +35530,153 @@ SQLITE_PRIVATE int sqlite3Atoi(const char *z){ } /* +** Decode a floating-point value into an approximate decimal +** representation. +** +** Round the decimal representation to n significant digits if +** n is positive. Or round to -n signficant digits after the +** decimal point if n is negative. No rounding is performed if +** n is zero. +** +** The significant digits of the decimal representation are +** stored in p->z[] which is a often (but not always) a pointer +** into the middle of p->zBuf[]. There are p->n significant digits. +** The p->z[] array is *not* zero-terminated. +*/ +SQLITE_PRIVATE void sqlite3FpDecode(FpDecode *p, double r, int iRound, int mxRound){ + int i; + u64 v; + int e, exp = 0; + p->isSpecial = 0; + p->z = p->zBuf; + + /* Convert negative numbers to positive. Deal with Infinity, 0.0, and + ** NaN. */ + if( r<0.0 ){ + p->sign = '-'; + r = -r; + }else if( r==0.0 ){ + p->sign = '+'; + p->n = 1; + p->iDP = 1; + p->z = "0"; + return; + }else{ + p->sign = '+'; + } + memcpy(&v,&r,8); + e = v>>52; + if( (e&0x7ff)==0x7ff ){ + p->isSpecial = 1 + (v!=0x7ff0000000000000LL); + p->n = 0; + p->iDP = 0; + return; + } + + /* Multiply r by powers of ten until it lands somewhere in between + ** 1.0e+19 and 1.0e+17. + */ + if( sqlite3Config.bUseLongDouble ){ + LONGDOUBLE_TYPE rr = r; + if( rr>=1.0e+19 ){ + while( rr>=1.0e+119L ){ exp+=100; rr *= 1.0e-100L; } + while( rr>=1.0e+29L ){ exp+=10; rr *= 1.0e-10L; } + while( rr>=1.0e+19L ){ exp++; rr *= 1.0e-1L; } + }else{ + while( rr<1.0e-97L ){ exp-=100; rr *= 1.0e+100L; } + while( rr<1.0e+07L ){ exp-=10; rr *= 1.0e+10L; } + while( rr<1.0e+17L ){ exp--; rr *= 1.0e+1L; } + } + v = (u64)rr; + }else{ + /* If high-precision floating point is not available using "long double", + ** then use Dekker-style double-double computation to increase the + ** precision. + ** + ** The error terms on constants like 1.0e+100 computed using the + ** decimal extension, for example as follows: + ** + ** SELECT decimal_exp(decimal_sub('1.0e+100',decimal(1.0e+100))); + */ + double rr[2]; + rr[0] = r; + rr[1] = 0.0; + if( rr[0]>9.223372036854774784e+18 ){ + while( rr[0]>9.223372036854774784e+118 ){ + exp += 100; + dekkerMul2(rr, 1.0e-100, -1.99918998026028836196e-117); + } + while( rr[0]>9.223372036854774784e+28 ){ + exp += 10; + dekkerMul2(rr, 1.0e-10, -3.6432197315497741579e-27); + } + while( rr[0]>9.223372036854774784e+18 ){ + exp += 1; + dekkerMul2(rr, 1.0e-01, -5.5511151231257827021e-18); + } + }else{ + while( rr[0]<9.223372036854774784e-83 ){ + exp -= 100; + dekkerMul2(rr, 1.0e+100, -1.5902891109759918046e+83); + } + while( rr[0]<9.223372036854774784e+07 ){ + exp -= 10; + dekkerMul2(rr, 1.0e+10, 0.0); + } + while( rr[0]<9.22337203685477478e+17 ){ + exp -= 1; + dekkerMul2(rr, 1.0e+01, 0.0); + } + } + v = rr[1]<0.0 ? (u64)rr[0]-(u64)(-rr[1]) : (u64)rr[0]+(u64)rr[1]; + } + + + /* Extract significant digits. */ + i = sizeof(p->zBuf)-1; + assert( v>0 ); + while( v ){ p->zBuf[i--] = (v%10) + '0'; v /= 10; } + assert( i>=0 && i<sizeof(p->zBuf)-1 ); + p->n = sizeof(p->zBuf) - 1 - i; + assert( p->n>0 ); + assert( p->n<sizeof(p->zBuf) ); + p->iDP = p->n + exp; + if( iRound<0 ){ + iRound = p->iDP - iRound; + if( iRound==0 && p->zBuf[i+1]>='5' ){ + iRound = 1; + p->zBuf[i--] = '0'; + p->n++; + p->iDP++; + } + } + if( iRound>0 && (iRound<p->n || p->n>mxRound) ){ + char *z = &p->zBuf[i+1]; + if( iRound>mxRound ) iRound = mxRound; + p->n = iRound; + if( z[iRound]>='5' ){ + int j = iRound-1; + while( 1 /*exit-by-break*/ ){ + z[j]++; + if( z[j]<='9' ) break; + z[j] = '0'; + if( j==0 ){ + p->z[i--] = '1'; + p->n++; + p->iDP++; + break; + }else{ + j--; + } + } + } + } + p->z = &p->zBuf[i+1]; + assert( i+p->n < sizeof(p->zBuf) ); + while( ALWAYS(p->n>0) && p->z[p->n-1]=='0' ){ p->n--; } +} + +/* ** Try to convert z into an unsigned 32-bit integer. Return true on ** success and false if there is an error. ** @@ -33752,121 +35939,32 @@ SQLITE_PRIVATE u8 sqlite3GetVarint(const unsigned char *p, u64 *v){ ** this function assumes the single-byte case has already been handled. */ SQLITE_PRIVATE u8 sqlite3GetVarint32(const unsigned char *p, u32 *v){ - u32 a,b; + u64 v64; + u8 n; - /* The 1-byte case. Overwhelmingly the most common. Handled inline - ** by the getVarin32() macro */ - a = *p; - /* a: p0 (unmasked) */ -#ifndef getVarint32 - if (!(a&0x80)) - { - /* Values between 0 and 127 */ - *v = a; - return 1; - } -#endif + /* Assume that the single-byte case has already been handled by + ** the getVarint32() macro */ + assert( (p[0] & 0x80)!=0 ); - /* The 2-byte case */ - p++; - b = *p; - /* b: p1 (unmasked) */ - if (!(b&0x80)) - { - /* Values between 128 and 16383 */ - a &= 0x7f; - a = a<<7; - *v = a | b; + if( (p[1] & 0x80)==0 ){ + /* This is the two-byte case */ + *v = ((p[0]&0x7f)<<7) | p[1]; return 2; } - - /* The 3-byte case */ - p++; - a = a<<14; - a |= *p; - /* a: p0<<14 | p2 (unmasked) */ - if (!(a&0x80)) - { - /* Values between 16384 and 2097151 */ - a &= (0x7f<<14)|(0x7f); - b &= 0x7f; - b = b<<7; - *v = a | b; + if( (p[2] & 0x80)==0 ){ + /* This is the three-byte case */ + *v = ((p[0]&0x7f)<<14) | ((p[1]&0x7f)<<7) | p[2]; return 3; } - - /* A 32-bit varint is used to store size information in btrees. - ** Objects are rarely larger than 2MiB limit of a 3-byte varint. - ** A 3-byte varint is sufficient, for example, to record the size - ** of a 1048569-byte BLOB or string. - ** - ** We only unroll the first 1-, 2-, and 3- byte cases. The very - ** rare larger cases can be handled by the slower 64-bit varint - ** routine. - */ -#if 1 - { - u64 v64; - u8 n; - - n = sqlite3GetVarint(p-2, &v64); - assert( n>3 && n<=9 ); - if( (v64 & SQLITE_MAX_U32)!=v64 ){ - *v = 0xffffffff; - }else{ - *v = (u32)v64; - } - return n; - } - -#else - /* For following code (kept for historical record only) shows an - ** unrolling for the 3- and 4-byte varint cases. This code is - ** slightly faster, but it is also larger and much harder to test. - */ - p++; - b = b<<14; - b |= *p; - /* b: p1<<14 | p3 (unmasked) */ - if (!(b&0x80)) - { - /* Values between 2097152 and 268435455 */ - b &= (0x7f<<14)|(0x7f); - a &= (0x7f<<14)|(0x7f); - a = a<<7; - *v = a | b; - return 4; - } - - p++; - a = a<<14; - a |= *p; - /* a: p0<<28 | p2<<14 | p4 (unmasked) */ - if (!(a&0x80)) - { - /* Values between 268435456 and 34359738367 */ - a &= SLOT_4_2_0; - b &= SLOT_4_2_0; - b = b<<7; - *v = a | b; - return 5; - } - - /* We can only reach this point when reading a corrupt database - ** file. In that case we are not in any hurry. Use the (relatively - ** slow) general-purpose sqlite3GetVarint() routine to extract the - ** value. */ - { - u64 v64; - u8 n; - - p -= 4; - n = sqlite3GetVarint(p, &v64); - assert( n>5 && n<=9 ); + /* four or more bytes */ + n = sqlite3GetVarint(p, &v64); + assert( n>3 && n<=9 ); + if( (v64 & SQLITE_MAX_U32)!=v64 ){ + *v = 0xffffffff; + }else{ *v = (u32)v64; - return n; } -#endif + return n; } /* @@ -34017,7 +36115,7 @@ SQLITE_PRIVATE int sqlite3SafetyCheckSickOrOk(sqlite3 *db){ } /* -** Attempt to add, substract, or multiply the 64-bit signed value iB against +** Attempt to add, subtract, or multiply the 64-bit signed value iB against ** the other 64-bit signed integer at *pA and store the result in *pA. ** Return 0 on success. Or if the operation would have resulted in an ** overflow, leave *pA unchanged and return 1. @@ -34303,6 +36401,104 @@ SQLITE_PRIVATE int sqlite3VListNameToNum(VList *pIn, const char *zName, int nNam return 0; } +/* +** High-resolution hardware timer used for debugging and testing only. +*/ +#if defined(VDBE_PROFILE) \ + || defined(SQLITE_PERFORMANCE_TRACE) \ + || defined(SQLITE_ENABLE_STMT_SCANSTATUS) +/************** Include hwtime.h in the middle of util.c *********************/ +/************** Begin file hwtime.h ******************************************/ +/* +** 2008 May 27 +** +** The author disclaims copyright to this source code. In place of +** a legal notice, here is a blessing: +** +** May you do good and not evil. +** May you find forgiveness for yourself and forgive others. +** May you share freely, never taking more than you give. +** +****************************************************************************** +** +** This file contains inline asm code for retrieving "high-performance" +** counters for x86 and x86_64 class CPUs. +*/ +#ifndef SQLITE_HWTIME_H +#define SQLITE_HWTIME_H + +/* +** The following routine only works on Pentium-class (or newer) processors. +** It uses the RDTSC opcode to read the cycle count value out of the +** processor and returns that value. This can be used for high-res +** profiling. +*/ +#if !defined(__STRICT_ANSI__) && \ + (defined(__GNUC__) || defined(_MSC_VER)) && \ + (defined(i386) || defined(__i386__) || defined(_M_IX86)) + + #if defined(__GNUC__) + + __inline__ sqlite_uint64 sqlite3Hwtime(void){ + unsigned int lo, hi; + __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi)); + return (sqlite_uint64)hi << 32 | lo; + } + + #elif defined(_MSC_VER) + + __declspec(naked) __inline sqlite_uint64 __cdecl sqlite3Hwtime(void){ + __asm { + rdtsc + ret ; return value at EDX:EAX + } + } + + #endif + +#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__x86_64__)) + + __inline__ sqlite_uint64 sqlite3Hwtime(void){ + unsigned int lo, hi; + __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi)); + return (sqlite_uint64)hi << 32 | lo; + } + +#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__ppc__)) + + __inline__ sqlite_uint64 sqlite3Hwtime(void){ + unsigned long long retval; + unsigned long junk; + __asm__ __volatile__ ("\n\ + 1: mftbu %1\n\ + mftb %L0\n\ + mftbu %0\n\ + cmpw %0,%1\n\ + bne 1b" + : "=r" (retval), "=r" (junk)); + return retval; + } + +#else + + /* + ** asm() is needed for hardware timing support. Without asm(), + ** disable the sqlite3Hwtime() routine. + ** + ** sqlite3Hwtime() is only used for some obscure debugging + ** and analysis configurations, not in any deliverable, so this + ** should not be a great loss. + */ +SQLITE_PRIVATE sqlite_uint64 sqlite3Hwtime(void){ return ((sqlite_uint64)0); } + +#endif + +#endif /* !defined(SQLITE_HWTIME_H) */ + +/************** End of hwtime.h **********************************************/ +/************** Continuing where we left off in util.c ***********************/ +#endif + /************** End of util.c ************************************************/ /************** Begin file hash.c ********************************************/ /* @@ -34404,7 +36600,7 @@ static void insertElement( } -/* Resize the hash table so that it cantains "new_size" buckets. +/* Resize the hash table so that it contains "new_size" buckets. ** ** The hash table might fail to resize if sqlite3_malloc() fails or ** if the new size is the same as the prior size. @@ -34473,12 +36669,13 @@ static HashElem *findElementWithHash( count = pH->count; } if( pHash ) *pHash = h; - while( count-- ){ + while( count ){ assert( elem!=0 ); if( sqlite3StrICmp(elem->pKey,pKey)==0 ){ return elem; } elem = elem->next; + count--; } return &nullElement; } @@ -34592,53 +36789,53 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){ /* 0 */ "Savepoint" OpHelp(""), /* 1 */ "AutoCommit" OpHelp(""), /* 2 */ "Transaction" OpHelp(""), - /* 3 */ "SorterNext" OpHelp(""), - /* 4 */ "Prev" OpHelp(""), - /* 5 */ "Next" OpHelp(""), - /* 6 */ "Checkpoint" OpHelp(""), - /* 7 */ "JournalMode" OpHelp(""), - /* 8 */ "Vacuum" OpHelp(""), - /* 9 */ "VFilter" OpHelp("iplan=r[P3] zplan='P4'"), - /* 10 */ "VUpdate" OpHelp("data=r[P3@P2]"), - /* 11 */ "Goto" OpHelp(""), - /* 12 */ "Gosub" OpHelp(""), - /* 13 */ "InitCoroutine" OpHelp(""), - /* 14 */ "Yield" OpHelp(""), - /* 15 */ "MustBeInt" OpHelp(""), - /* 16 */ "Jump" OpHelp(""), - /* 17 */ "Once" OpHelp(""), - /* 18 */ "If" OpHelp(""), + /* 3 */ "Checkpoint" OpHelp(""), + /* 4 */ "JournalMode" OpHelp(""), + /* 5 */ "Vacuum" OpHelp(""), + /* 6 */ "VFilter" OpHelp("iplan=r[P3] zplan='P4'"), + /* 7 */ "VUpdate" OpHelp("data=r[P3@P2]"), + /* 8 */ "Init" OpHelp("Start at P2"), + /* 9 */ "Goto" OpHelp(""), + /* 10 */ "Gosub" OpHelp(""), + /* 11 */ "InitCoroutine" OpHelp(""), + /* 12 */ "Yield" OpHelp(""), + /* 13 */ "MustBeInt" OpHelp(""), + /* 14 */ "Jump" OpHelp(""), + /* 15 */ "Once" OpHelp(""), + /* 16 */ "If" OpHelp(""), + /* 17 */ "IfNot" OpHelp(""), + /* 18 */ "IsType" OpHelp("if typeof(P1.P3) in P5 goto P2"), /* 19 */ "Not" OpHelp("r[P2]= !r[P1]"), - /* 20 */ "IfNot" OpHelp(""), - /* 21 */ "IsNullOrType" OpHelp("if typeof(r[P1]) IN (P3,5) goto P2"), - /* 22 */ "IfNullRow" OpHelp("if P1.nullRow then r[P3]=NULL, goto P2"), - /* 23 */ "SeekLT" OpHelp("key=r[P3@P4]"), - /* 24 */ "SeekLE" OpHelp("key=r[P3@P4]"), - /* 25 */ "SeekGE" OpHelp("key=r[P3@P4]"), - /* 26 */ "SeekGT" OpHelp("key=r[P3@P4]"), - /* 27 */ "IfNotOpen" OpHelp("if( !csr[P1] ) goto P2"), - /* 28 */ "IfNoHope" OpHelp("key=r[P3@P4]"), - /* 29 */ "NoConflict" OpHelp("key=r[P3@P4]"), - /* 30 */ "NotFound" OpHelp("key=r[P3@P4]"), - /* 31 */ "Found" OpHelp("key=r[P3@P4]"), - /* 32 */ "SeekRowid" OpHelp("intkey=r[P3]"), - /* 33 */ "NotExists" OpHelp("intkey=r[P3]"), - /* 34 */ "Last" OpHelp(""), - /* 35 */ "IfSmaller" OpHelp(""), - /* 36 */ "SorterSort" OpHelp(""), - /* 37 */ "Sort" OpHelp(""), - /* 38 */ "Rewind" OpHelp(""), - /* 39 */ "IdxLE" OpHelp("key=r[P3@P4]"), - /* 40 */ "IdxGT" OpHelp("key=r[P3@P4]"), - /* 41 */ "IdxLT" OpHelp("key=r[P3@P4]"), - /* 42 */ "IdxGE" OpHelp("key=r[P3@P4]"), + /* 20 */ "IfNullRow" OpHelp("if P1.nullRow then r[P3]=NULL, goto P2"), + /* 21 */ "SeekLT" OpHelp("key=r[P3@P4]"), + /* 22 */ "SeekLE" OpHelp("key=r[P3@P4]"), + /* 23 */ "SeekGE" OpHelp("key=r[P3@P4]"), + /* 24 */ "SeekGT" OpHelp("key=r[P3@P4]"), + /* 25 */ "IfNotOpen" OpHelp("if( !csr[P1] ) goto P2"), + /* 26 */ "IfNoHope" OpHelp("key=r[P3@P4]"), + /* 27 */ "NoConflict" OpHelp("key=r[P3@P4]"), + /* 28 */ "NotFound" OpHelp("key=r[P3@P4]"), + /* 29 */ "Found" OpHelp("key=r[P3@P4]"), + /* 30 */ "SeekRowid" OpHelp("intkey=r[P3]"), + /* 31 */ "NotExists" OpHelp("intkey=r[P3]"), + /* 32 */ "Last" OpHelp(""), + /* 33 */ "IfSmaller" OpHelp(""), + /* 34 */ "SorterSort" OpHelp(""), + /* 35 */ "Sort" OpHelp(""), + /* 36 */ "Rewind" OpHelp(""), + /* 37 */ "SorterNext" OpHelp(""), + /* 38 */ "Prev" OpHelp(""), + /* 39 */ "Next" OpHelp(""), + /* 40 */ "IdxLE" OpHelp("key=r[P3@P4]"), + /* 41 */ "IdxGT" OpHelp("key=r[P3@P4]"), + /* 42 */ "IdxLT" OpHelp("key=r[P3@P4]"), /* 43 */ "Or" OpHelp("r[P3]=(r[P1] || r[P2])"), /* 44 */ "And" OpHelp("r[P3]=(r[P1] && r[P2])"), - /* 45 */ "RowSetRead" OpHelp("r[P3]=rowset(P1)"), - /* 46 */ "RowSetTest" OpHelp("if r[P3] in rowset(P1) goto P2"), - /* 47 */ "Program" OpHelp(""), - /* 48 */ "FkIfZero" OpHelp("if fkctr[P1]==0 goto P2"), - /* 49 */ "IfPos" OpHelp("if r[P1]>0 then r[P1]-=P3, goto P2"), + /* 45 */ "IdxGE" OpHelp("key=r[P3@P4]"), + /* 46 */ "RowSetRead" OpHelp("r[P3]=rowset(P1)"), + /* 47 */ "RowSetTest" OpHelp("if r[P3] in rowset(P1) goto P2"), + /* 48 */ "Program" OpHelp(""), + /* 49 */ "FkIfZero" OpHelp("if fkctr[P1]==0 goto P2"), /* 50 */ "IsNull" OpHelp("if r[P1]==NULL goto P2"), /* 51 */ "NotNull" OpHelp("if r[P1]!=NULL goto P2"), /* 52 */ "Ne" OpHelp("IF r[P3]!=r[P1]"), @@ -34648,12 +36845,12 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){ /* 56 */ "Lt" OpHelp("IF r[P3]<r[P1]"), /* 57 */ "Ge" OpHelp("IF r[P3]>=r[P1]"), /* 58 */ "ElseEq" OpHelp(""), - /* 59 */ "IfNotZero" OpHelp("if r[P1]!=0 then r[P1]--, goto P2"), - /* 60 */ "DecrJumpZero" OpHelp("if (--r[P1])==0 goto P2"), - /* 61 */ "IncrVacuum" OpHelp(""), - /* 62 */ "VNext" OpHelp(""), - /* 63 */ "Filter" OpHelp("if key(P3@P4) not in filter(P1) goto P2"), - /* 64 */ "Init" OpHelp("Start at P2"), + /* 59 */ "IfPos" OpHelp("if r[P1]>0 then r[P1]-=P3, goto P2"), + /* 60 */ "IfNotZero" OpHelp("if r[P1]!=0 then r[P1]--, goto P2"), + /* 61 */ "DecrJumpZero" OpHelp("if (--r[P1])==0 goto P2"), + /* 62 */ "IncrVacuum" OpHelp(""), + /* 63 */ "VNext" OpHelp(""), + /* 64 */ "Filter" OpHelp("if key(P3@P4) not in filter(P1) goto P2"), /* 65 */ "PureFunc" OpHelp("r[P3]=func(r[P2@NP])"), /* 66 */ "Function" OpHelp("r[P3]=func(r[P2@NP])"), /* 67 */ "Return" OpHelp(""), @@ -34663,34 +36860,34 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){ /* 71 */ "Integer" OpHelp("r[P2]=P1"), /* 72 */ "Int64" OpHelp("r[P2]=P4"), /* 73 */ "String" OpHelp("r[P2]='P4' (len=P1)"), - /* 74 */ "Null" OpHelp("r[P2..P3]=NULL"), - /* 75 */ "SoftNull" OpHelp("r[P1]=NULL"), - /* 76 */ "Blob" OpHelp("r[P2]=P4 (len=P1)"), - /* 77 */ "Variable" OpHelp("r[P2]=parameter(P1,P4)"), - /* 78 */ "Move" OpHelp("r[P2@P3]=r[P1@P3]"), - /* 79 */ "Copy" OpHelp("r[P2@P3+1]=r[P1@P3+1]"), - /* 80 */ "SCopy" OpHelp("r[P2]=r[P1]"), - /* 81 */ "IntCopy" OpHelp("r[P2]=r[P1]"), - /* 82 */ "FkCheck" OpHelp(""), - /* 83 */ "ResultRow" OpHelp("output=r[P1@P2]"), - /* 84 */ "CollSeq" OpHelp(""), - /* 85 */ "AddImm" OpHelp("r[P1]=r[P1]+P2"), - /* 86 */ "RealAffinity" OpHelp(""), - /* 87 */ "Cast" OpHelp("affinity(r[P1])"), - /* 88 */ "Permutation" OpHelp(""), - /* 89 */ "Compare" OpHelp("r[P1@P3] <-> r[P2@P3]"), - /* 90 */ "IsTrue" OpHelp("r[P2] = coalesce(r[P1]==TRUE,P3) ^ P4"), - /* 91 */ "ZeroOrNull" OpHelp("r[P2] = 0 OR NULL"), - /* 92 */ "Offset" OpHelp("r[P3] = sqlite_offset(P1)"), - /* 93 */ "Column" OpHelp("r[P3]=PX"), - /* 94 */ "TypeCheck" OpHelp("typecheck(r[P1@P2])"), - /* 95 */ "Affinity" OpHelp("affinity(r[P1@P2])"), - /* 96 */ "MakeRecord" OpHelp("r[P3]=mkrec(r[P1@P2])"), - /* 97 */ "Count" OpHelp("r[P2]=count()"), - /* 98 */ "ReadCookie" OpHelp(""), - /* 99 */ "SetCookie" OpHelp(""), - /* 100 */ "ReopenIdx" OpHelp("root=P2 iDb=P3"), - /* 101 */ "OpenRead" OpHelp("root=P2 iDb=P3"), + /* 74 */ "BeginSubrtn" OpHelp("r[P2]=NULL"), + /* 75 */ "Null" OpHelp("r[P2..P3]=NULL"), + /* 76 */ "SoftNull" OpHelp("r[P1]=NULL"), + /* 77 */ "Blob" OpHelp("r[P2]=P4 (len=P1)"), + /* 78 */ "Variable" OpHelp("r[P2]=parameter(P1,P4)"), + /* 79 */ "Move" OpHelp("r[P2@P3]=r[P1@P3]"), + /* 80 */ "Copy" OpHelp("r[P2@P3+1]=r[P1@P3+1]"), + /* 81 */ "SCopy" OpHelp("r[P2]=r[P1]"), + /* 82 */ "IntCopy" OpHelp("r[P2]=r[P1]"), + /* 83 */ "FkCheck" OpHelp(""), + /* 84 */ "ResultRow" OpHelp("output=r[P1@P2]"), + /* 85 */ "CollSeq" OpHelp(""), + /* 86 */ "AddImm" OpHelp("r[P1]=r[P1]+P2"), + /* 87 */ "RealAffinity" OpHelp(""), + /* 88 */ "Cast" OpHelp("affinity(r[P1])"), + /* 89 */ "Permutation" OpHelp(""), + /* 90 */ "Compare" OpHelp("r[P1@P3] <-> r[P2@P3]"), + /* 91 */ "IsTrue" OpHelp("r[P2] = coalesce(r[P1]==TRUE,P3) ^ P4"), + /* 92 */ "ZeroOrNull" OpHelp("r[P2] = 0 OR NULL"), + /* 93 */ "Offset" OpHelp("r[P3] = sqlite_offset(P1)"), + /* 94 */ "Column" OpHelp("r[P3]=PX cursor P1 column P2"), + /* 95 */ "TypeCheck" OpHelp("typecheck(r[P1@P2])"), + /* 96 */ "Affinity" OpHelp("affinity(r[P1@P2])"), + /* 97 */ "MakeRecord" OpHelp("r[P3]=mkrec(r[P1@P2])"), + /* 98 */ "Count" OpHelp("r[P2]=count()"), + /* 99 */ "ReadCookie" OpHelp(""), + /* 100 */ "SetCookie" OpHelp(""), + /* 101 */ "ReopenIdx" OpHelp("root=P2 iDb=P3"), /* 102 */ "BitAnd" OpHelp("r[P3]=r[P1]&r[P2]"), /* 103 */ "BitOr" OpHelp("r[P3]=r[P1]|r[P2]"), /* 104 */ "ShiftLeft" OpHelp("r[P3]=r[P2]<<r[P1]"), @@ -34701,85 +36898,1072 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){ /* 109 */ "Divide" OpHelp("r[P3]=r[P2]/r[P1]"), /* 110 */ "Remainder" OpHelp("r[P3]=r[P2]%r[P1]"), /* 111 */ "Concat" OpHelp("r[P3]=r[P2]+r[P1]"), - /* 112 */ "OpenWrite" OpHelp("root=P2 iDb=P3"), - /* 113 */ "OpenDup" OpHelp(""), + /* 112 */ "OpenRead" OpHelp("root=P2 iDb=P3"), + /* 113 */ "OpenWrite" OpHelp("root=P2 iDb=P3"), /* 114 */ "BitNot" OpHelp("r[P2]= ~r[P1]"), - /* 115 */ "OpenAutoindex" OpHelp("nColumn=P2"), - /* 116 */ "OpenEphemeral" OpHelp("nColumn=P2"), + /* 115 */ "OpenDup" OpHelp(""), + /* 116 */ "OpenAutoindex" OpHelp("nColumn=P2"), /* 117 */ "String8" OpHelp("r[P2]='P4'"), - /* 118 */ "SorterOpen" OpHelp(""), - /* 119 */ "SequenceTest" OpHelp("if( cursor[P1].ctr++ ) pc = P2"), - /* 120 */ "OpenPseudo" OpHelp("P3 columns in r[P2]"), - /* 121 */ "Close" OpHelp(""), - /* 122 */ "ColumnsUsed" OpHelp(""), - /* 123 */ "SeekScan" OpHelp("Scan-ahead up to P1 rows"), - /* 124 */ "SeekHit" OpHelp("set P2<=seekHit<=P3"), - /* 125 */ "Sequence" OpHelp("r[P2]=cursor[P1].ctr++"), - /* 126 */ "NewRowid" OpHelp("r[P2]=rowid"), - /* 127 */ "Insert" OpHelp("intkey=r[P3] data=r[P2]"), - /* 128 */ "RowCell" OpHelp(""), - /* 129 */ "Delete" OpHelp(""), - /* 130 */ "ResetCount" OpHelp(""), - /* 131 */ "SorterCompare" OpHelp("if key(P1)!=trim(r[P3],P4) goto P2"), - /* 132 */ "SorterData" OpHelp("r[P2]=data"), - /* 133 */ "RowData" OpHelp("r[P2]=data"), - /* 134 */ "Rowid" OpHelp("r[P2]=rowid"), - /* 135 */ "NullRow" OpHelp(""), - /* 136 */ "SeekEnd" OpHelp(""), - /* 137 */ "IdxInsert" OpHelp("key=r[P2]"), - /* 138 */ "SorterInsert" OpHelp("key=r[P2]"), - /* 139 */ "IdxDelete" OpHelp("key=r[P2@P3]"), - /* 140 */ "DeferredSeek" OpHelp("Move P3 to P1.rowid if needed"), - /* 141 */ "IdxRowid" OpHelp("r[P2]=rowid"), - /* 142 */ "FinishSeek" OpHelp(""), - /* 143 */ "Destroy" OpHelp(""), - /* 144 */ "Clear" OpHelp(""), - /* 145 */ "ResetSorter" OpHelp(""), - /* 146 */ "CreateBtree" OpHelp("r[P2]=root iDb=P1 flags=P3"), - /* 147 */ "SqlExec" OpHelp(""), - /* 148 */ "ParseSchema" OpHelp(""), - /* 149 */ "LoadAnalysis" OpHelp(""), - /* 150 */ "DropTable" OpHelp(""), - /* 151 */ "DropIndex" OpHelp(""), - /* 152 */ "DropTrigger" OpHelp(""), + /* 118 */ "OpenEphemeral" OpHelp("nColumn=P2"), + /* 119 */ "SorterOpen" OpHelp(""), + /* 120 */ "SequenceTest" OpHelp("if( cursor[P1].ctr++ ) pc = P2"), + /* 121 */ "OpenPseudo" OpHelp("P3 columns in r[P2]"), + /* 122 */ "Close" OpHelp(""), + /* 123 */ "ColumnsUsed" OpHelp(""), + /* 124 */ "SeekScan" OpHelp("Scan-ahead up to P1 rows"), + /* 125 */ "SeekHit" OpHelp("set P2<=seekHit<=P3"), + /* 126 */ "Sequence" OpHelp("r[P2]=cursor[P1].ctr++"), + /* 127 */ "NewRowid" OpHelp("r[P2]=rowid"), + /* 128 */ "Insert" OpHelp("intkey=r[P3] data=r[P2]"), + /* 129 */ "RowCell" OpHelp(""), + /* 130 */ "Delete" OpHelp(""), + /* 131 */ "ResetCount" OpHelp(""), + /* 132 */ "SorterCompare" OpHelp("if key(P1)!=trim(r[P3],P4) goto P2"), + /* 133 */ "SorterData" OpHelp("r[P2]=data"), + /* 134 */ "RowData" OpHelp("r[P2]=data"), + /* 135 */ "Rowid" OpHelp("r[P2]=PX rowid of P1"), + /* 136 */ "NullRow" OpHelp(""), + /* 137 */ "SeekEnd" OpHelp(""), + /* 138 */ "IdxInsert" OpHelp("key=r[P2]"), + /* 139 */ "SorterInsert" OpHelp("key=r[P2]"), + /* 140 */ "IdxDelete" OpHelp("key=r[P2@P3]"), + /* 141 */ "DeferredSeek" OpHelp("Move P3 to P1.rowid if needed"), + /* 142 */ "IdxRowid" OpHelp("r[P2]=rowid"), + /* 143 */ "FinishSeek" OpHelp(""), + /* 144 */ "Destroy" OpHelp(""), + /* 145 */ "Clear" OpHelp(""), + /* 146 */ "ResetSorter" OpHelp(""), + /* 147 */ "CreateBtree" OpHelp("r[P2]=root iDb=P1 flags=P3"), + /* 148 */ "SqlExec" OpHelp(""), + /* 149 */ "ParseSchema" OpHelp(""), + /* 150 */ "LoadAnalysis" OpHelp(""), + /* 151 */ "DropTable" OpHelp(""), + /* 152 */ "DropIndex" OpHelp(""), /* 153 */ "Real" OpHelp("r[P2]=P4"), - /* 154 */ "IntegrityCk" OpHelp(""), - /* 155 */ "RowSetAdd" OpHelp("rowset(P1)=r[P2]"), - /* 156 */ "Param" OpHelp(""), - /* 157 */ "FkCounter" OpHelp("fkctr[P1]+=P2"), - /* 158 */ "MemMax" OpHelp("r[P1]=max(r[P1],r[P2])"), - /* 159 */ "OffsetLimit" OpHelp("if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1)"), - /* 160 */ "AggInverse" OpHelp("accum=r[P3] inverse(r[P2@P5])"), - /* 161 */ "AggStep" OpHelp("accum=r[P3] step(r[P2@P5])"), - /* 162 */ "AggStep1" OpHelp("accum=r[P3] step(r[P2@P5])"), - /* 163 */ "AggValue" OpHelp("r[P3]=value N=P2"), - /* 164 */ "AggFinal" OpHelp("accum=r[P1] N=P2"), - /* 165 */ "Expire" OpHelp(""), - /* 166 */ "CursorLock" OpHelp(""), - /* 167 */ "CursorUnlock" OpHelp(""), - /* 168 */ "TableLock" OpHelp("iDb=P1 root=P2 write=P3"), - /* 169 */ "VBegin" OpHelp(""), - /* 170 */ "VCreate" OpHelp(""), - /* 171 */ "VDestroy" OpHelp(""), - /* 172 */ "VOpen" OpHelp(""), - /* 173 */ "VInitIn" OpHelp("r[P2]=ValueList(P1,P3)"), - /* 174 */ "VColumn" OpHelp("r[P3]=vcolumn(P2)"), - /* 175 */ "VRename" OpHelp(""), - /* 176 */ "Pagecount" OpHelp(""), - /* 177 */ "MaxPgcnt" OpHelp(""), - /* 178 */ "FilterAdd" OpHelp("filter(P1) += key(P3@P4)"), - /* 179 */ "Trace" OpHelp(""), - /* 180 */ "CursorHint" OpHelp(""), - /* 181 */ "ReleaseReg" OpHelp("release r[P1@P2] mask P3"), - /* 182 */ "Noop" OpHelp(""), - /* 183 */ "Explain" OpHelp(""), - /* 184 */ "Abortable" OpHelp(""), + /* 154 */ "DropTrigger" OpHelp(""), + /* 155 */ "IntegrityCk" OpHelp(""), + /* 156 */ "RowSetAdd" OpHelp("rowset(P1)=r[P2]"), + /* 157 */ "Param" OpHelp(""), + /* 158 */ "FkCounter" OpHelp("fkctr[P1]+=P2"), + /* 159 */ "MemMax" OpHelp("r[P1]=max(r[P1],r[P2])"), + /* 160 */ "OffsetLimit" OpHelp("if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1)"), + /* 161 */ "AggInverse" OpHelp("accum=r[P3] inverse(r[P2@P5])"), + /* 162 */ "AggStep" OpHelp("accum=r[P3] step(r[P2@P5])"), + /* 163 */ "AggStep1" OpHelp("accum=r[P3] step(r[P2@P5])"), + /* 164 */ "AggValue" OpHelp("r[P3]=value N=P2"), + /* 165 */ "AggFinal" OpHelp("accum=r[P1] N=P2"), + /* 166 */ "Expire" OpHelp(""), + /* 167 */ "CursorLock" OpHelp(""), + /* 168 */ "CursorUnlock" OpHelp(""), + /* 169 */ "TableLock" OpHelp("iDb=P1 root=P2 write=P3"), + /* 170 */ "VBegin" OpHelp(""), + /* 171 */ "VCreate" OpHelp(""), + /* 172 */ "VDestroy" OpHelp(""), + /* 173 */ "VOpen" OpHelp(""), + /* 174 */ "VCheck" OpHelp(""), + /* 175 */ "VInitIn" OpHelp("r[P2]=ValueList(P1,P3)"), + /* 176 */ "VColumn" OpHelp("r[P3]=vcolumn(P2)"), + /* 177 */ "VRename" OpHelp(""), + /* 178 */ "Pagecount" OpHelp(""), + /* 179 */ "MaxPgcnt" OpHelp(""), + /* 180 */ "ClrSubtype" OpHelp("r[P1].subtype = 0"), + /* 181 */ "GetSubtype" OpHelp("r[P2] = r[P1].subtype"), + /* 182 */ "SetSubtype" OpHelp("r[P2].subtype = r[P1]"), + /* 183 */ "FilterAdd" OpHelp("filter(P1) += key(P3@P4)"), + /* 184 */ "Trace" OpHelp(""), + /* 185 */ "CursorHint" OpHelp(""), + /* 186 */ "ReleaseReg" OpHelp("release r[P1@P2] mask P3"), + /* 187 */ "Noop" OpHelp(""), + /* 188 */ "Explain" OpHelp(""), + /* 189 */ "Abortable" OpHelp(""), }; return azName[i]; } #endif /************** End of opcodes.c *********************************************/ +/************** Begin file os_kv.c *******************************************/ +/* +** 2022-09-06 +** +** The author disclaims copyright to this source code. In place of +** a legal notice, here is a blessing: +** +** May you do good and not evil. +** May you find forgiveness for yourself and forgive others. +** May you share freely, never taking more than you give. +** +****************************************************************************** +** +** This file contains an experimental VFS layer that operates on a +** Key/Value storage engine where both keys and values must be pure +** text. +*/ +/* #include <sqliteInt.h> */ +#if SQLITE_OS_KV || (SQLITE_OS_UNIX && defined(SQLITE_OS_KV_OPTIONAL)) + +/***************************************************************************** +** Debugging logic +*/ + +/* SQLITE_KV_TRACE() is used for tracing calls to kvstorage routines. */ +#if 0 +#define SQLITE_KV_TRACE(X) printf X +#else +#define SQLITE_KV_TRACE(X) +#endif + +/* SQLITE_KV_LOG() is used for tracing calls to the VFS interface */ +#if 0 +#define SQLITE_KV_LOG(X) printf X +#else +#define SQLITE_KV_LOG(X) +#endif + + +/* +** Forward declaration of objects used by this VFS implementation +*/ +typedef struct KVVfsFile KVVfsFile; + +/* A single open file. There are only two files represented by this +** VFS - the database and the rollback journal. +*/ +struct KVVfsFile { + sqlite3_file base; /* IO methods */ + const char *zClass; /* Storage class */ + int isJournal; /* True if this is a journal file */ + unsigned int nJrnl; /* Space allocated for aJrnl[] */ + char *aJrnl; /* Journal content */ + int szPage; /* Last known page size */ + sqlite3_int64 szDb; /* Database file size. -1 means unknown */ + char *aData; /* Buffer to hold page data */ +}; +#define SQLITE_KVOS_SZ 133073 + +/* +** Methods for KVVfsFile +*/ +static int kvvfsClose(sqlite3_file*); +static int kvvfsReadDb(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst); +static int kvvfsReadJrnl(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst); +static int kvvfsWriteDb(sqlite3_file*,const void*,int iAmt, sqlite3_int64); +static int kvvfsWriteJrnl(sqlite3_file*,const void*,int iAmt, sqlite3_int64); +static int kvvfsTruncateDb(sqlite3_file*, sqlite3_int64 size); +static int kvvfsTruncateJrnl(sqlite3_file*, sqlite3_int64 size); +static int kvvfsSyncDb(sqlite3_file*, int flags); +static int kvvfsSyncJrnl(sqlite3_file*, int flags); +static int kvvfsFileSizeDb(sqlite3_file*, sqlite3_int64 *pSize); +static int kvvfsFileSizeJrnl(sqlite3_file*, sqlite3_int64 *pSize); +static int kvvfsLock(sqlite3_file*, int); +static int kvvfsUnlock(sqlite3_file*, int); +static int kvvfsCheckReservedLock(sqlite3_file*, int *pResOut); +static int kvvfsFileControlDb(sqlite3_file*, int op, void *pArg); +static int kvvfsFileControlJrnl(sqlite3_file*, int op, void *pArg); +static int kvvfsSectorSize(sqlite3_file*); +static int kvvfsDeviceCharacteristics(sqlite3_file*); + +/* +** Methods for sqlite3_vfs +*/ +static int kvvfsOpen(sqlite3_vfs*, const char *, sqlite3_file*, int , int *); +static int kvvfsDelete(sqlite3_vfs*, const char *zName, int syncDir); +static int kvvfsAccess(sqlite3_vfs*, const char *zName, int flags, int *); +static int kvvfsFullPathname(sqlite3_vfs*, const char *zName, int, char *zOut); +static void *kvvfsDlOpen(sqlite3_vfs*, const char *zFilename); +static int kvvfsRandomness(sqlite3_vfs*, int nByte, char *zOut); +static int kvvfsSleep(sqlite3_vfs*, int microseconds); +static int kvvfsCurrentTime(sqlite3_vfs*, double*); +static int kvvfsCurrentTimeInt64(sqlite3_vfs*, sqlite3_int64*); + +static sqlite3_vfs sqlite3OsKvvfsObject = { + 1, /* iVersion */ + sizeof(KVVfsFile), /* szOsFile */ + 1024, /* mxPathname */ + 0, /* pNext */ + "kvvfs", /* zName */ + 0, /* pAppData */ + kvvfsOpen, /* xOpen */ + kvvfsDelete, /* xDelete */ + kvvfsAccess, /* xAccess */ + kvvfsFullPathname, /* xFullPathname */ + kvvfsDlOpen, /* xDlOpen */ + 0, /* xDlError */ + 0, /* xDlSym */ + 0, /* xDlClose */ + kvvfsRandomness, /* xRandomness */ + kvvfsSleep, /* xSleep */ + kvvfsCurrentTime, /* xCurrentTime */ + 0, /* xGetLastError */ + kvvfsCurrentTimeInt64 /* xCurrentTimeInt64 */ +}; + +/* Methods for sqlite3_file objects referencing a database file +*/ +static sqlite3_io_methods kvvfs_db_io_methods = { + 1, /* iVersion */ + kvvfsClose, /* xClose */ + kvvfsReadDb, /* xRead */ + kvvfsWriteDb, /* xWrite */ + kvvfsTruncateDb, /* xTruncate */ + kvvfsSyncDb, /* xSync */ + kvvfsFileSizeDb, /* xFileSize */ + kvvfsLock, /* xLock */ + kvvfsUnlock, /* xUnlock */ + kvvfsCheckReservedLock, /* xCheckReservedLock */ + kvvfsFileControlDb, /* xFileControl */ + kvvfsSectorSize, /* xSectorSize */ + kvvfsDeviceCharacteristics, /* xDeviceCharacteristics */ + 0, /* xShmMap */ + 0, /* xShmLock */ + 0, /* xShmBarrier */ + 0, /* xShmUnmap */ + 0, /* xFetch */ + 0 /* xUnfetch */ +}; + +/* Methods for sqlite3_file objects referencing a rollback journal +*/ +static sqlite3_io_methods kvvfs_jrnl_io_methods = { + 1, /* iVersion */ + kvvfsClose, /* xClose */ + kvvfsReadJrnl, /* xRead */ + kvvfsWriteJrnl, /* xWrite */ + kvvfsTruncateJrnl, /* xTruncate */ + kvvfsSyncJrnl, /* xSync */ + kvvfsFileSizeJrnl, /* xFileSize */ + kvvfsLock, /* xLock */ + kvvfsUnlock, /* xUnlock */ + kvvfsCheckReservedLock, /* xCheckReservedLock */ + kvvfsFileControlJrnl, /* xFileControl */ + kvvfsSectorSize, /* xSectorSize */ + kvvfsDeviceCharacteristics, /* xDeviceCharacteristics */ + 0, /* xShmMap */ + 0, /* xShmLock */ + 0, /* xShmBarrier */ + 0, /* xShmUnmap */ + 0, /* xFetch */ + 0 /* xUnfetch */ +}; + +/****** Storage subsystem **************************************************/ +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> + +/* Forward declarations for the low-level storage engine +*/ +static int kvstorageWrite(const char*, const char *zKey, const char *zData); +static int kvstorageDelete(const char*, const char *zKey); +static int kvstorageRead(const char*, const char *zKey, char *zBuf, int nBuf); +#define KVSTORAGE_KEY_SZ 32 + +/* Expand the key name with an appropriate prefix and put the result +** zKeyOut[]. The zKeyOut[] buffer is assumed to hold at least +** KVSTORAGE_KEY_SZ bytes. +*/ +static void kvstorageMakeKey( + const char *zClass, + const char *zKeyIn, + char *zKeyOut +){ + sqlite3_snprintf(KVSTORAGE_KEY_SZ, zKeyOut, "kvvfs-%s-%s", zClass, zKeyIn); +} + +/* Write content into a key. zClass is the particular namespace of the +** underlying key/value store to use - either "local" or "session". +** +** Both zKey and zData are zero-terminated pure text strings. +** +** Return the number of errors. +*/ +static int kvstorageWrite( + const char *zClass, + const char *zKey, + const char *zData +){ + FILE *fd; + char zXKey[KVSTORAGE_KEY_SZ]; + kvstorageMakeKey(zClass, zKey, zXKey); + fd = fopen(zXKey, "wb"); + if( fd ){ + SQLITE_KV_TRACE(("KVVFS-WRITE %-15s (%d) %.50s%s\n", zXKey, + (int)strlen(zData), zData, + strlen(zData)>50 ? "..." : "")); + fputs(zData, fd); + fclose(fd); + return 0; + }else{ + return 1; + } +} + +/* Delete a key (with its corresponding data) from the key/value +** namespace given by zClass. If the key does not previously exist, +** this routine is a no-op. +*/ +static int kvstorageDelete(const char *zClass, const char *zKey){ + char zXKey[KVSTORAGE_KEY_SZ]; + kvstorageMakeKey(zClass, zKey, zXKey); + unlink(zXKey); + SQLITE_KV_TRACE(("KVVFS-DELETE %-15s\n", zXKey)); + return 0; +} + +/* Read the value associated with a zKey from the key/value namespace given +** by zClass and put the text data associated with that key in the first +** nBuf bytes of zBuf[]. The value might be truncated if zBuf is not large +** enough to hold it all. The value put into zBuf must always be zero +** terminated, even if it gets truncated because nBuf is not large enough. +** +** Return the total number of bytes in the data, without truncation, and +** not counting the final zero terminator. Return -1 if the key does +** not exist. +** +** If nBuf<=0 then this routine simply returns the size of the data without +** actually reading it. +*/ +static int kvstorageRead( + const char *zClass, + const char *zKey, + char *zBuf, + int nBuf +){ + FILE *fd; + struct stat buf; + char zXKey[KVSTORAGE_KEY_SZ]; + kvstorageMakeKey(zClass, zKey, zXKey); + if( access(zXKey, R_OK)!=0 + || stat(zXKey, &buf)!=0 + || !S_ISREG(buf.st_mode) + ){ + SQLITE_KV_TRACE(("KVVFS-READ %-15s (-1)\n", zXKey)); + return -1; + } + if( nBuf<=0 ){ + return (int)buf.st_size; + }else if( nBuf==1 ){ + zBuf[0] = 0; + SQLITE_KV_TRACE(("KVVFS-READ %-15s (%d)\n", zXKey, + (int)buf.st_size)); + return (int)buf.st_size; + } + if( nBuf > buf.st_size + 1 ){ + nBuf = buf.st_size + 1; + } + fd = fopen(zXKey, "rb"); + if( fd==0 ){ + SQLITE_KV_TRACE(("KVVFS-READ %-15s (-1)\n", zXKey)); + return -1; + }else{ + sqlite3_int64 n = fread(zBuf, 1, nBuf-1, fd); + fclose(fd); + zBuf[n] = 0; + SQLITE_KV_TRACE(("KVVFS-READ %-15s (%lld) %.50s%s\n", zXKey, + n, zBuf, n>50 ? "..." : "")); + return (int)n; + } +} + +/* +** An internal level of indirection which enables us to replace the +** kvvfs i/o methods with JavaScript implementations in WASM builds. +** Maintenance reminder: if this struct changes in any way, the JSON +** rendering of its structure must be updated in +** sqlite3_wasm_enum_json(). There are no binary compatibility +** concerns, so it does not need an iVersion member. This file is +** necessarily always compiled together with sqlite3_wasm_enum_json(), +** and JS code dynamically creates the mapping of members based on +** that JSON description. +*/ +typedef struct sqlite3_kvvfs_methods sqlite3_kvvfs_methods; +struct sqlite3_kvvfs_methods { + int (*xRead)(const char *zClass, const char *zKey, char *zBuf, int nBuf); + int (*xWrite)(const char *zClass, const char *zKey, const char *zData); + int (*xDelete)(const char *zClass, const char *zKey); + const int nKeySize; +}; + +/* +** This object holds the kvvfs I/O methods which may be swapped out +** for JavaScript-side implementations in WASM builds. In such builds +** it cannot be const, but in native builds it should be so that +** the compiler can hopefully optimize this level of indirection out. +** That said, kvvfs is intended primarily for use in WASM builds. +** +** Note that this is not explicitly flagged as static because the +** amalgamation build will tag it with SQLITE_PRIVATE. +*/ +#ifndef SQLITE_WASM +const +#endif +SQLITE_PRIVATE sqlite3_kvvfs_methods sqlite3KvvfsMethods = { +kvstorageRead, +kvstorageWrite, +kvstorageDelete, +KVSTORAGE_KEY_SZ +}; + +/****** Utility subroutines ************************************************/ + +/* +** Encode binary into the text encoded used to persist on disk. +** The output text is stored in aOut[], which must be at least +** nData+1 bytes in length. +** +** Return the actual length of the encoded text, not counting the +** zero terminator at the end. +** +** Encoding format +** --------------- +** +** * Non-zero bytes are encoded as upper-case hexadecimal +** +** * A sequence of one or more zero-bytes that are not at the +** beginning of the buffer are encoded as a little-endian +** base-26 number using a..z. "a" means 0. "b" means 1, +** "z" means 25. "ab" means 26. "ac" means 52. And so forth. +** +** * Because there is no overlap between the encoding characters +** of hexadecimal and base-26 numbers, it is always clear where +** one stops and the next begins. +*/ +static int kvvfsEncode(const char *aData, int nData, char *aOut){ + int i, j; + const unsigned char *a = (const unsigned char*)aData; + for(i=j=0; i<nData; i++){ + unsigned char c = a[i]; + if( c!=0 ){ + aOut[j++] = "0123456789ABCDEF"[c>>4]; + aOut[j++] = "0123456789ABCDEF"[c&0xf]; + }else{ + /* A sequence of 1 or more zeros is stored as a little-endian + ** base-26 number using a..z as the digits. So one zero is "b". + ** Two zeros is "c". 25 zeros is "z", 26 zeros is "ab", 27 is "bb", + ** and so forth. + */ + int k; + for(k=1; i+k<nData && a[i+k]==0; k++){} + i += k-1; + while( k>0 ){ + aOut[j++] = 'a'+(k%26); + k /= 26; + } + } + } + aOut[j] = 0; + return j; +} + +static const signed char kvvfsHexValue[256] = { + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, + -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 +}; + +/* +** Decode the text encoding back to binary. The binary content is +** written into pOut, which must be at least nOut bytes in length. +** +** The return value is the number of bytes actually written into aOut[]. +*/ +static int kvvfsDecode(const char *a, char *aOut, int nOut){ + int i, j; + int c; + const unsigned char *aIn = (const unsigned char*)a; + i = 0; + j = 0; + while( 1 ){ + c = kvvfsHexValue[aIn[i]]; + if( c<0 ){ + int n = 0; + int mult = 1; + c = aIn[i]; + if( c==0 ) break; + while( c>='a' && c<='z' ){ + n += (c - 'a')*mult; + mult *= 26; + c = aIn[++i]; + } + if( j+n>nOut ) return -1; + memset(&aOut[j], 0, n); + j += n; + if( c==0 || mult==1 ) break; /* progress stalled if mult==1 */ + }else{ + aOut[j] = c<<4; + c = kvvfsHexValue[aIn[++i]]; + if( c<0 ) break; + aOut[j++] += c; + i++; + } + } + return j; +} + +/* +** Decode a complete journal file. Allocate space in pFile->aJrnl +** and store the decoding there. Or leave pFile->aJrnl set to NULL +** if an error is encountered. +** +** The first few characters of the text encoding will be a little-endian +** base-26 number (digits a..z) that is the total number of bytes +** in the decoded journal file image. This base-26 number is followed +** by a single space, then the encoding of the journal. The space +** separator is required to act as a terminator for the base-26 number. +*/ +static void kvvfsDecodeJournal( + KVVfsFile *pFile, /* Store decoding in pFile->aJrnl */ + const char *zTxt, /* Text encoding. Zero-terminated */ + int nTxt /* Bytes in zTxt, excluding zero terminator */ +){ + unsigned int n = 0; + int c, i, mult; + i = 0; + mult = 1; + while( (c = zTxt[i++])>='a' && c<='z' ){ + n += (zTxt[i] - 'a')*mult; + mult *= 26; + } + sqlite3_free(pFile->aJrnl); + pFile->aJrnl = sqlite3_malloc64( n ); + if( pFile->aJrnl==0 ){ + pFile->nJrnl = 0; + return; + } + pFile->nJrnl = n; + n = kvvfsDecode(zTxt+i, pFile->aJrnl, pFile->nJrnl); + if( n<pFile->nJrnl ){ + sqlite3_free(pFile->aJrnl); + pFile->aJrnl = 0; + pFile->nJrnl = 0; + } +} + +/* +** Read or write the "sz" element, containing the database file size. +*/ +static sqlite3_int64 kvvfsReadFileSize(KVVfsFile *pFile){ + char zData[50]; + zData[0] = 0; + sqlite3KvvfsMethods.xRead(pFile->zClass, "sz", zData, sizeof(zData)-1); + return strtoll(zData, 0, 0); +} +static int kvvfsWriteFileSize(KVVfsFile *pFile, sqlite3_int64 sz){ + char zData[50]; + sqlite3_snprintf(sizeof(zData), zData, "%lld", sz); + return sqlite3KvvfsMethods.xWrite(pFile->zClass, "sz", zData); +} + +/****** sqlite3_io_methods methods ******************************************/ + +/* +** Close an kvvfs-file. +*/ +static int kvvfsClose(sqlite3_file *pProtoFile){ + KVVfsFile *pFile = (KVVfsFile *)pProtoFile; + + SQLITE_KV_LOG(("xClose %s %s\n", pFile->zClass, + pFile->isJournal ? "journal" : "db")); + sqlite3_free(pFile->aJrnl); + sqlite3_free(pFile->aData); + return SQLITE_OK; +} + +/* +** Read from the -journal file. +*/ +static int kvvfsReadJrnl( + sqlite3_file *pProtoFile, + void *zBuf, + int iAmt, + sqlite_int64 iOfst +){ + KVVfsFile *pFile = (KVVfsFile*)pProtoFile; + assert( pFile->isJournal ); + SQLITE_KV_LOG(("xRead('%s-journal',%d,%lld)\n", pFile->zClass, iAmt, iOfst)); + if( pFile->aJrnl==0 ){ + int szTxt = kvstorageRead(pFile->zClass, "jrnl", 0, 0); + char *aTxt; + if( szTxt<=4 ){ + return SQLITE_IOERR; + } + aTxt = sqlite3_malloc64( szTxt+1 ); + if( aTxt==0 ) return SQLITE_NOMEM; + kvstorageRead(pFile->zClass, "jrnl", aTxt, szTxt+1); + kvvfsDecodeJournal(pFile, aTxt, szTxt); + sqlite3_free(aTxt); + if( pFile->aJrnl==0 ) return SQLITE_IOERR; + } + if( iOfst+iAmt>pFile->nJrnl ){ + return SQLITE_IOERR_SHORT_READ; + } + memcpy(zBuf, pFile->aJrnl+iOfst, iAmt); + return SQLITE_OK; +} + +/* +** Read from the database file. +*/ +static int kvvfsReadDb( + sqlite3_file *pProtoFile, + void *zBuf, + int iAmt, + sqlite_int64 iOfst +){ + KVVfsFile *pFile = (KVVfsFile*)pProtoFile; + unsigned int pgno; + int got, n; + char zKey[30]; + char *aData = pFile->aData; + assert( iOfst>=0 ); + assert( iAmt>=0 ); + SQLITE_KV_LOG(("xRead('%s-db',%d,%lld)\n", pFile->zClass, iAmt, iOfst)); + if( iOfst+iAmt>=512 ){ + if( (iOfst % iAmt)!=0 ){ + return SQLITE_IOERR_READ; + } + if( (iAmt & (iAmt-1))!=0 || iAmt<512 || iAmt>65536 ){ + return SQLITE_IOERR_READ; + } + pFile->szPage = iAmt; + pgno = 1 + iOfst/iAmt; + }else{ + pgno = 1; + } + sqlite3_snprintf(sizeof(zKey), zKey, "%u", pgno); + got = sqlite3KvvfsMethods.xRead(pFile->zClass, zKey, + aData, SQLITE_KVOS_SZ-1); + if( got<0 ){ + n = 0; + }else{ + aData[got] = 0; + if( iOfst+iAmt<512 ){ + int k = iOfst+iAmt; + aData[k*2] = 0; + n = kvvfsDecode(aData, &aData[2000], SQLITE_KVOS_SZ-2000); + if( n>=iOfst+iAmt ){ + memcpy(zBuf, &aData[2000+iOfst], iAmt); + n = iAmt; + }else{ + n = 0; + } + }else{ + n = kvvfsDecode(aData, zBuf, iAmt); + } + } + if( n<iAmt ){ + memset(zBuf+n, 0, iAmt-n); + return SQLITE_IOERR_SHORT_READ; + } + return SQLITE_OK; +} + + +/* +** Write into the -journal file. +*/ +static int kvvfsWriteJrnl( + sqlite3_file *pProtoFile, + const void *zBuf, + int iAmt, + sqlite_int64 iOfst +){ + KVVfsFile *pFile = (KVVfsFile*)pProtoFile; + sqlite3_int64 iEnd = iOfst+iAmt; + SQLITE_KV_LOG(("xWrite('%s-journal',%d,%lld)\n", pFile->zClass, iAmt, iOfst)); + if( iEnd>=0x10000000 ) return SQLITE_FULL; + if( pFile->aJrnl==0 || pFile->nJrnl<iEnd ){ + char *aNew = sqlite3_realloc(pFile->aJrnl, iEnd); + if( aNew==0 ){ + return SQLITE_IOERR_NOMEM; + } + pFile->aJrnl = aNew; + if( pFile->nJrnl<iOfst ){ + memset(pFile->aJrnl+pFile->nJrnl, 0, iOfst-pFile->nJrnl); + } + pFile->nJrnl = iEnd; + } + memcpy(pFile->aJrnl+iOfst, zBuf, iAmt); + return SQLITE_OK; +} + +/* +** Write into the database file. +*/ +static int kvvfsWriteDb( + sqlite3_file *pProtoFile, + const void *zBuf, + int iAmt, + sqlite_int64 iOfst +){ + KVVfsFile *pFile = (KVVfsFile*)pProtoFile; + unsigned int pgno; + char zKey[30]; + char *aData = pFile->aData; + SQLITE_KV_LOG(("xWrite('%s-db',%d,%lld)\n", pFile->zClass, iAmt, iOfst)); + assert( iAmt>=512 && iAmt<=65536 ); + assert( (iAmt & (iAmt-1))==0 ); + assert( pFile->szPage<0 || pFile->szPage==iAmt ); + pFile->szPage = iAmt; + pgno = 1 + iOfst/iAmt; + sqlite3_snprintf(sizeof(zKey), zKey, "%u", pgno); + kvvfsEncode(zBuf, iAmt, aData); + if( sqlite3KvvfsMethods.xWrite(pFile->zClass, zKey, aData) ){ + return SQLITE_IOERR; + } + if( iOfst+iAmt > pFile->szDb ){ + pFile->szDb = iOfst + iAmt; + } + return SQLITE_OK; +} + +/* +** Truncate an kvvfs-file. +*/ +static int kvvfsTruncateJrnl(sqlite3_file *pProtoFile, sqlite_int64 size){ + KVVfsFile *pFile = (KVVfsFile *)pProtoFile; + SQLITE_KV_LOG(("xTruncate('%s-journal',%lld)\n", pFile->zClass, size)); + assert( size==0 ); + sqlite3KvvfsMethods.xDelete(pFile->zClass, "jrnl"); + sqlite3_free(pFile->aJrnl); + pFile->aJrnl = 0; + pFile->nJrnl = 0; + return SQLITE_OK; +} +static int kvvfsTruncateDb(sqlite3_file *pProtoFile, sqlite_int64 size){ + KVVfsFile *pFile = (KVVfsFile *)pProtoFile; + if( pFile->szDb>size + && pFile->szPage>0 + && (size % pFile->szPage)==0 + ){ + char zKey[50]; + unsigned int pgno, pgnoMax; + SQLITE_KV_LOG(("xTruncate('%s-db',%lld)\n", pFile->zClass, size)); + pgno = 1 + size/pFile->szPage; + pgnoMax = 2 + pFile->szDb/pFile->szPage; + while( pgno<=pgnoMax ){ + sqlite3_snprintf(sizeof(zKey), zKey, "%u", pgno); + sqlite3KvvfsMethods.xDelete(pFile->zClass, zKey); + pgno++; + } + pFile->szDb = size; + return kvvfsWriteFileSize(pFile, size) ? SQLITE_IOERR : SQLITE_OK; + } + return SQLITE_IOERR; +} + +/* +** Sync an kvvfs-file. +*/ +static int kvvfsSyncJrnl(sqlite3_file *pProtoFile, int flags){ + int i, n; + KVVfsFile *pFile = (KVVfsFile *)pProtoFile; + char *zOut; + SQLITE_KV_LOG(("xSync('%s-journal')\n", pFile->zClass)); + if( pFile->nJrnl<=0 ){ + return kvvfsTruncateJrnl(pProtoFile, 0); + } + zOut = sqlite3_malloc64( pFile->nJrnl*2 + 50 ); + if( zOut==0 ){ + return SQLITE_IOERR_NOMEM; + } + n = pFile->nJrnl; + i = 0; + do{ + zOut[i++] = 'a' + (n%26); + n /= 26; + }while( n>0 ); + zOut[i++] = ' '; + kvvfsEncode(pFile->aJrnl, pFile->nJrnl, &zOut[i]); + i = sqlite3KvvfsMethods.xWrite(pFile->zClass, "jrnl", zOut); + sqlite3_free(zOut); + return i ? SQLITE_IOERR : SQLITE_OK; +} +static int kvvfsSyncDb(sqlite3_file *pProtoFile, int flags){ + return SQLITE_OK; +} + +/* +** Return the current file-size of an kvvfs-file. +*/ +static int kvvfsFileSizeJrnl(sqlite3_file *pProtoFile, sqlite_int64 *pSize){ + KVVfsFile *pFile = (KVVfsFile *)pProtoFile; + SQLITE_KV_LOG(("xFileSize('%s-journal')\n", pFile->zClass)); + *pSize = pFile->nJrnl; + return SQLITE_OK; +} +static int kvvfsFileSizeDb(sqlite3_file *pProtoFile, sqlite_int64 *pSize){ + KVVfsFile *pFile = (KVVfsFile *)pProtoFile; + SQLITE_KV_LOG(("xFileSize('%s-db')\n", pFile->zClass)); + if( pFile->szDb>=0 ){ + *pSize = pFile->szDb; + }else{ + *pSize = kvvfsReadFileSize(pFile); + } + return SQLITE_OK; +} + +/* +** Lock an kvvfs-file. +*/ +static int kvvfsLock(sqlite3_file *pProtoFile, int eLock){ + KVVfsFile *pFile = (KVVfsFile *)pProtoFile; + assert( !pFile->isJournal ); + SQLITE_KV_LOG(("xLock(%s,%d)\n", pFile->zClass, eLock)); + + if( eLock!=SQLITE_LOCK_NONE ){ + pFile->szDb = kvvfsReadFileSize(pFile); + } + return SQLITE_OK; +} + +/* +** Unlock an kvvfs-file. +*/ +static int kvvfsUnlock(sqlite3_file *pProtoFile, int eLock){ + KVVfsFile *pFile = (KVVfsFile *)pProtoFile; + assert( !pFile->isJournal ); + SQLITE_KV_LOG(("xUnlock(%s,%d)\n", pFile->zClass, eLock)); + if( eLock==SQLITE_LOCK_NONE ){ + pFile->szDb = -1; + } + return SQLITE_OK; +} + +/* +** Check if another file-handle holds a RESERVED lock on an kvvfs-file. +*/ +static int kvvfsCheckReservedLock(sqlite3_file *pProtoFile, int *pResOut){ + SQLITE_KV_LOG(("xCheckReservedLock\n")); + *pResOut = 0; + return SQLITE_OK; +} + +/* +** File control method. For custom operations on an kvvfs-file. +*/ +static int kvvfsFileControlJrnl(sqlite3_file *pProtoFile, int op, void *pArg){ + SQLITE_KV_LOG(("xFileControl(%d) on journal\n", op)); + return SQLITE_NOTFOUND; +} +static int kvvfsFileControlDb(sqlite3_file *pProtoFile, int op, void *pArg){ + SQLITE_KV_LOG(("xFileControl(%d) on database\n", op)); + if( op==SQLITE_FCNTL_SYNC ){ + KVVfsFile *pFile = (KVVfsFile *)pProtoFile; + int rc = SQLITE_OK; + SQLITE_KV_LOG(("xSync('%s-db')\n", pFile->zClass)); + if( pFile->szDb>0 && 0!=kvvfsWriteFileSize(pFile, pFile->szDb) ){ + rc = SQLITE_IOERR; + } + return rc; + } + return SQLITE_NOTFOUND; +} + +/* +** Return the sector-size in bytes for an kvvfs-file. +*/ +static int kvvfsSectorSize(sqlite3_file *pFile){ + return 512; +} + +/* +** Return the device characteristic flags supported by an kvvfs-file. +*/ +static int kvvfsDeviceCharacteristics(sqlite3_file *pProtoFile){ + return 0; +} + +/****** sqlite3_vfs methods *************************************************/ + +/* +** Open an kvvfs file handle. +*/ +static int kvvfsOpen( + sqlite3_vfs *pProtoVfs, + const char *zName, + sqlite3_file *pProtoFile, + int flags, + int *pOutFlags +){ + KVVfsFile *pFile = (KVVfsFile*)pProtoFile; + if( zName==0 ) zName = ""; + SQLITE_KV_LOG(("xOpen(\"%s\")\n", zName)); + if( strcmp(zName, "local")==0 + || strcmp(zName, "session")==0 + ){ + pFile->isJournal = 0; + pFile->base.pMethods = &kvvfs_db_io_methods; + }else + if( strcmp(zName, "local-journal")==0 + || strcmp(zName, "session-journal")==0 + ){ + pFile->isJournal = 1; + pFile->base.pMethods = &kvvfs_jrnl_io_methods; + }else{ + return SQLITE_CANTOPEN; + } + if( zName[0]=='s' ){ + pFile->zClass = "session"; + }else{ + pFile->zClass = "local"; + } + pFile->aData = sqlite3_malloc64(SQLITE_KVOS_SZ); + if( pFile->aData==0 ){ + return SQLITE_NOMEM; + } + pFile->aJrnl = 0; + pFile->nJrnl = 0; + pFile->szPage = -1; + pFile->szDb = -1; + return SQLITE_OK; +} + +/* +** Delete the file located at zPath. If the dirSync argument is true, +** ensure the file-system modifications are synced to disk before +** returning. +*/ +static int kvvfsDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){ + if( strcmp(zPath, "local-journal")==0 ){ + sqlite3KvvfsMethods.xDelete("local", "jrnl"); + }else + if( strcmp(zPath, "session-journal")==0 ){ + sqlite3KvvfsMethods.xDelete("session", "jrnl"); + } + return SQLITE_OK; +} + +/* +** Test for access permissions. Return true if the requested permission +** is available, or false otherwise. +*/ +static int kvvfsAccess( + sqlite3_vfs *pProtoVfs, + const char *zPath, + int flags, + int *pResOut +){ + SQLITE_KV_LOG(("xAccess(\"%s\")\n", zPath)); + if( strcmp(zPath, "local-journal")==0 ){ + *pResOut = sqlite3KvvfsMethods.xRead("local", "jrnl", 0, 0)>0; + }else + if( strcmp(zPath, "session-journal")==0 ){ + *pResOut = sqlite3KvvfsMethods.xRead("session", "jrnl", 0, 0)>0; + }else + if( strcmp(zPath, "local")==0 ){ + *pResOut = sqlite3KvvfsMethods.xRead("local", "sz", 0, 0)>0; + }else + if( strcmp(zPath, "session")==0 ){ + *pResOut = sqlite3KvvfsMethods.xRead("session", "sz", 0, 0)>0; + }else + { + *pResOut = 0; + } + SQLITE_KV_LOG(("xAccess returns %d\n",*pResOut)); + return SQLITE_OK; +} + +/* +** Populate buffer zOut with the full canonical pathname corresponding +** to the pathname in zPath. zOut is guaranteed to point to a buffer +** of at least (INST_MAX_PATHNAME+1) bytes. +*/ +static int kvvfsFullPathname( + sqlite3_vfs *pVfs, + const char *zPath, + int nOut, + char *zOut +){ + size_t nPath; +#ifdef SQLITE_OS_KV_ALWAYS_LOCAL + zPath = "local"; +#endif + nPath = strlen(zPath); + SQLITE_KV_LOG(("xFullPathname(\"%s\")\n", zPath)); + if( nOut<nPath+1 ) nPath = nOut - 1; + memcpy(zOut, zPath, nPath); + zOut[nPath] = 0; + return SQLITE_OK; +} + +/* +** Open the dynamic library located at zPath and return a handle. +*/ +static void *kvvfsDlOpen(sqlite3_vfs *pVfs, const char *zPath){ + return 0; +} + +/* +** Populate the buffer pointed to by zBufOut with nByte bytes of +** random data. +*/ +static int kvvfsRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){ + memset(zBufOut, 0, nByte); + return nByte; +} + +/* +** Sleep for nMicro microseconds. Return the number of microseconds +** actually slept. +*/ +static int kvvfsSleep(sqlite3_vfs *pVfs, int nMicro){ + return SQLITE_OK; +} + +/* +** Return the current time as a Julian Day number in *pTimeOut. +*/ +static int kvvfsCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){ + sqlite3_int64 i = 0; + int rc; + rc = kvvfsCurrentTimeInt64(0, &i); + *pTimeOut = i/86400000.0; + return rc; +} +#include <sys/time.h> +static int kvvfsCurrentTimeInt64(sqlite3_vfs *pVfs, sqlite3_int64 *pTimeOut){ + static const sqlite3_int64 unixEpoch = 24405875*(sqlite3_int64)8640000; + struct timeval sNow; + (void)gettimeofday(&sNow, 0); /* Cannot fail given valid arguments */ + *pTimeOut = unixEpoch + 1000*(sqlite3_int64)sNow.tv_sec + sNow.tv_usec/1000; + return SQLITE_OK; +} +#endif /* SQLITE_OS_KV || SQLITE_OS_UNIX */ + +#if SQLITE_OS_KV +/* +** This routine is called initialize the KV-vfs as the default VFS. +*/ +SQLITE_API int sqlite3_os_init(void){ + return sqlite3_vfs_register(&sqlite3OsKvvfsObject, 1); +} +SQLITE_API int sqlite3_os_end(void){ + return SQLITE_OK; +} +#endif /* SQLITE_OS_KV */ + +#if SQLITE_OS_UNIX && defined(SQLITE_OS_KV_OPTIONAL) +SQLITE_PRIVATE int sqlite3KvvfsInit(void){ + return sqlite3_vfs_register(&sqlite3OsKvvfsObject, 0); +} +#endif + +/************** End of os_kv.c ***********************************************/ /************** Begin file os_unix.c *****************************************/ /* ** 2004 May 22 @@ -34805,7 +37989,7 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){ ** This source file is organized into divisions where the logic for various ** subfunctions is contained within the appropriate division. PLEASE ** KEEP THE STRUCTURE OF THIS FILE INTACT. New code should be placed -** in the correct division and should be clearly labeled. +** in the correct division and should be clearly labelled. ** ** The layout of divisions is as follows: ** @@ -34855,7 +38039,7 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){ #endif /* Use pread() and pwrite() if they are available */ -#if defined(__APPLE__) +#if defined(__APPLE__) || defined(__linux__) # define HAVE_PREAD 1 # define HAVE_PWRITE 1 #endif @@ -34870,15 +38054,16 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){ /* ** standard include files. */ -#include <sys/types.h> -#include <sys/stat.h> +#include <sys/types.h> /* amalgamator: keep */ +#include <sys/stat.h> /* amalgamator: keep */ #include <fcntl.h> #include <sys/ioctl.h> -#include <unistd.h> +#include <unistd.h> /* amalgamator: keep */ /* #include <time.h> */ -#include <sys/time.h> +#include <sys/time.h> /* amalgamator: keep */ #include <errno.h> -#if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0 +#if (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0) \ + && !defined(SQLITE_WASI) # include <sys/mman.h> #endif @@ -34966,9 +38151,46 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){ */ #define SQLITE_MAX_SYMLINKS 100 +/* +** Remove and stub certain info for WASI (WebAssembly System +** Interface) builds. +*/ +#ifdef SQLITE_WASI +# undef HAVE_FCHMOD +# undef HAVE_FCHOWN +# undef HAVE_MREMAP +# define HAVE_MREMAP 0 +# ifndef SQLITE_DEFAULT_UNIX_VFS +# define SQLITE_DEFAULT_UNIX_VFS "unix-dotfile" + /* ^^^ should SQLITE_DEFAULT_UNIX_VFS be "unix-none"? */ +# endif +# ifndef F_RDLCK +# define F_RDLCK 0 +# define F_WRLCK 1 +# define F_UNLCK 2 +# if __LONG_MAX == 0x7fffffffL +# define F_GETLK 12 +# define F_SETLK 13 +# define F_SETLKW 14 +# else +# define F_GETLK 5 +# define F_SETLK 6 +# define F_SETLKW 7 +# endif +# endif +#else /* !SQLITE_WASI */ +# ifndef HAVE_FCHMOD +# define HAVE_FCHMOD +# endif +#endif /* SQLITE_WASI */ + +#ifdef SQLITE_WASI +# define osGetpid(X) (pid_t)1 +#else /* Always cast the getpid() return type for compatibility with ** kernel modules in VxWorks. */ -#define osGetpid(X) (pid_t)getpid() +# define osGetpid(X) (pid_t)getpid() +#endif /* ** Only set the lastErrno if the error code is a real error and not @@ -35240,7 +38462,11 @@ static struct unix_syscall { #define osPwrite64 ((ssize_t(*)(int,const void*,size_t,off64_t))\ aSyscall[13].pCurrent) +#if defined(HAVE_FCHMOD) { "fchmod", (sqlite3_syscall_ptr)fchmod, 0 }, +#else + { "fchmod", (sqlite3_syscall_ptr)0, 0 }, +#endif #define osFchmod ((int(*)(int,mode_t))aSyscall[14].pCurrent) #if defined(HAVE_POSIX_FALLOCATE) && HAVE_POSIX_FALLOCATE @@ -35276,14 +38502,16 @@ static struct unix_syscall { #endif #define osGeteuid ((uid_t(*)(void))aSyscall[21].pCurrent) -#if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0 +#if (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0) \ + && !defined(SQLITE_WASI) { "mmap", (sqlite3_syscall_ptr)mmap, 0 }, #else { "mmap", (sqlite3_syscall_ptr)0, 0 }, #endif #define osMmap ((void*(*)(void*,size_t,int,int,int,off_t))aSyscall[22].pCurrent) -#if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0 +#if (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0) \ + && !defined(SQLITE_WASI) { "munmap", (sqlite3_syscall_ptr)munmap, 0 }, #else { "munmap", (sqlite3_syscall_ptr)0, 0 }, @@ -35348,7 +38576,7 @@ static int robustFchown(int fd, uid_t uid, gid_t gid){ /* ** This is the xSetSystemCall() method of sqlite3_vfs for all of the -** "unix" VFSes. Return SQLITE_OK opon successfully updating the +** "unix" VFSes. Return SQLITE_OK upon successfully updating the ** system call pointer, or SQLITE_NOTFOUND if there is no configurable ** system call named zName. */ @@ -35469,6 +38697,9 @@ static int robust_open(const char *z, int f, mode_t m){ break; } if( fd>=SQLITE_MINIMUM_FILE_DESCRIPTOR ) break; + if( (f & (O_EXCL|O_CREAT))==(O_EXCL|O_CREAT) ){ + (void)osUnlink(z); + } osClose(fd); sqlite3_log(SQLITE_WARNING, "attempt to open \"%s\" as file descriptor %d", z, fd); @@ -35867,7 +39098,7 @@ static void vxworksReleaseFileId(struct vxworksFileId *pId){ ** If you close a file descriptor that points to a file that has locks, ** all locks on that file that are owned by the current process are ** released. To work around this problem, each unixInodeInfo object -** maintains a count of the number of pending locks on tha inode. +** maintains a count of the number of pending locks on the inode. ** When an attempt is made to close an unixFile, if there are ** other unixFile open on the same inode that are holding locks, the call ** to close() the file descriptor is deferred until all of the locks clear. @@ -35881,7 +39112,7 @@ static void vxworksReleaseFileId(struct vxworksFileId *pId){ ** not posix compliant. Under LinuxThreads, a lock created by thread ** A cannot be modified or overridden by a different thread B. ** Only thread A can modify the lock. Locking behavior is correct -** if the appliation uses the newer Native Posix Thread Library (NPTL) +** if the application uses the newer Native Posix Thread Library (NPTL) ** on linux - with NPTL a lock created by thread A can override locks ** in thread B. But there is no way to know at compile-time which ** threading library is being used. So there is no way to know at @@ -36083,7 +39314,7 @@ static void storeLastErrno(unixFile *pFile, int error){ } /* -** Close all file descriptors accumuated in the unixInodeInfo->pUnused list. +** Close all file descriptors accumulated in the unixInodeInfo->pUnused list. */ static void closePendingFds(unixFile *pFile){ unixInodeInfo *pInode = pFile->pInode; @@ -36431,7 +39662,7 @@ static int unixFileLock(unixFile *pFile, struct flock *pLock){ ** ** UNLOCKED -> SHARED ** SHARED -> RESERVED -** SHARED -> (PENDING) -> EXCLUSIVE +** SHARED -> EXCLUSIVE ** RESERVED -> (PENDING) -> EXCLUSIVE ** PENDING -> EXCLUSIVE ** @@ -36446,7 +39677,7 @@ static int unixLock(sqlite3_file *id, int eFileLock){ ** slightly in order to be compatible with Windows95 systems simultaneously ** accessing the same database file, in case that is ever required. ** - ** Symbols defined in os.h indentify the 'pending byte' and the 'reserved + ** Symbols defined in os.h identify the 'pending byte' and the 'reserved ** byte', each single bytes at well known offsets, and the 'shared byte ** range', a range of 510 bytes at a well known offset. ** @@ -36454,7 +39685,7 @@ static int unixLock(sqlite3_file *id, int eFileLock){ ** byte'. If this is successful, 'shared byte range' is read-locked ** and the lock on the 'pending byte' released. (Legacy note: When ** SQLite was first developed, Windows95 systems were still very common, - ** and Widnows95 lacks a shared-lock capability. So on Windows95, a + ** and Windows95 lacks a shared-lock capability. So on Windows95, a ** single randomly selected by from the 'shared byte range' is locked. ** Windows95 is now pretty much extinct, but this work-around for the ** lack of shared-locks on Windows95 lives on, for backwards @@ -36464,19 +39695,20 @@ static int unixLock(sqlite3_file *id, int eFileLock){ ** A RESERVED lock is implemented by grabbing a write-lock on the ** 'reserved byte'. ** - ** A process may only obtain a PENDING lock after it has obtained a - ** SHARED lock. A PENDING lock is implemented by obtaining a write-lock - ** on the 'pending byte'. This ensures that no new SHARED locks can be - ** obtained, but existing SHARED locks are allowed to persist. A process - ** does not have to obtain a RESERVED lock on the way to a PENDING lock. - ** This property is used by the algorithm for rolling back a journal file - ** after a crash. + ** An EXCLUSIVE lock may only be requested after either a SHARED or + ** RESERVED lock is held. An EXCLUSIVE lock is implemented by obtaining + ** a write-lock on the entire 'shared byte range'. Since all other locks + ** require a read-lock on one of the bytes within this range, this ensures + ** that no other locks are held on the database. ** - ** An EXCLUSIVE lock, obtained after a PENDING lock is held, is - ** implemented by obtaining a write-lock on the entire 'shared byte - ** range'. Since all other locks require a read-lock on one of the bytes - ** within this range, this ensures that no other locks are held on the - ** database. + ** If a process that holds a RESERVED lock requests an EXCLUSIVE, then + ** a PENDING lock is obtained first. A PENDING lock is implemented by + ** obtaining a write-lock on the 'pending byte'. This ensures that no new + ** SHARED locks can be obtained, but existing SHARED locks are allowed to + ** persist. If the call to this function fails to obtain the EXCLUSIVE + ** lock in this case, it holds the PENDING lock instead. The client may + ** then re-attempt the EXCLUSIVE lock later on, after existing SHARED + ** locks have cleared. */ int rc = SQLITE_OK; unixFile *pFile = (unixFile*)id; @@ -36502,7 +39734,7 @@ static int unixLock(sqlite3_file *id, int eFileLock){ /* Make sure the locking sequence is correct. ** (1) We never move from unlocked to anything higher than shared lock. - ** (2) SQLite never explicitly requests a pendig lock. + ** (2) SQLite never explicitly requests a pending lock. ** (3) A shared lock is always held when a reserve lock is requested. */ assert( pFile->eFileLock!=NO_LOCK || eFileLock==SHARED_LOCK ); @@ -36547,7 +39779,7 @@ static int unixLock(sqlite3_file *id, int eFileLock){ lock.l_len = 1L; lock.l_whence = SEEK_SET; if( eFileLock==SHARED_LOCK - || (eFileLock==EXCLUSIVE_LOCK && pFile->eFileLock<PENDING_LOCK) + || (eFileLock==EXCLUSIVE_LOCK && pFile->eFileLock==RESERVED_LOCK) ){ lock.l_type = (eFileLock==SHARED_LOCK?F_RDLCK:F_WRLCK); lock.l_start = PENDING_BYTE; @@ -36558,6 +39790,9 @@ static int unixLock(sqlite3_file *id, int eFileLock){ storeLastErrno(pFile, tErrno); } goto end_lock; + }else if( eFileLock==EXCLUSIVE_LOCK ){ + pFile->eFileLock = PENDING_LOCK; + pInode->eFileLock = PENDING_LOCK; } } @@ -36645,13 +39880,9 @@ static int unixLock(sqlite3_file *id, int eFileLock){ } #endif - if( rc==SQLITE_OK ){ pFile->eFileLock = eFileLock; pInode->eFileLock = eFileLock; - }else if( eFileLock==EXCLUSIVE_LOCK ){ - pFile->eFileLock = PENDING_LOCK; - pInode->eFileLock = PENDING_LOCK; } end_lock: @@ -37721,7 +40952,7 @@ static int afpLock(sqlite3_file *id, int eFileLock){ /* Make sure the locking sequence is correct ** (1) We never move from unlocked to anything higher than shared lock. - ** (2) SQLite never explicitly requests a pendig lock. + ** (2) SQLite never explicitly requests a pending lock. ** (3) A shared lock is always held when a reserve lock is requested. */ assert( pFile->eFileLock!=NO_LOCK || eFileLock==SHARED_LOCK ); @@ -37837,7 +41068,7 @@ static int afpLock(sqlite3_file *id, int eFileLock){ if( !(failed = afpSetLock(context->dbPath, pFile, SHARED_FIRST + pInode->sharedByte, 1, 0)) ){ int failed2 = SQLITE_OK; - /* now attemmpt to get the exclusive lock range */ + /* now attempt to get the exclusive lock range */ failed = afpSetLock(context->dbPath, pFile, SHARED_FIRST, SHARED_SIZE, 1); if( failed && (failed2 = afpSetLock(context->dbPath, pFile, @@ -37886,9 +41117,6 @@ static int afpUnlock(sqlite3_file *id, int eFileLock) { unixInodeInfo *pInode; afpLockingContext *context = (afpLockingContext *) pFile->lockingContext; int skipShared = 0; -#ifdef SQLITE_TEST - int h = pFile->h; -#endif assert( pFile ); OSTRACE(("UNLOCK %d %d was %d(%d,%d) pid=%d (afp)\n", pFile->h, eFileLock, @@ -37904,9 +41132,6 @@ static int afpUnlock(sqlite3_file *id, int eFileLock) { assert( pInode->nShared!=0 ); if( pFile->eFileLock>SHARED_LOCK ){ assert( pInode->eFileLock==pFile->eFileLock ); - SimulateIOErrorBenign(1); - SimulateIOError( h=(-1) ) - SimulateIOErrorBenign(0); #ifdef SQLITE_DEBUG /* When reducing a lock such that other processes can start @@ -37955,9 +41180,6 @@ static int afpUnlock(sqlite3_file *id, int eFileLock) { unsigned long long sharedLockByte = SHARED_FIRST+pInode->sharedByte; pInode->nShared--; if( pInode->nShared==0 ){ - SimulateIOErrorBenign(1); - SimulateIOError( h=(-1) ) - SimulateIOErrorBenign(0); if( !skipShared ){ rc = afpSetLock(context->dbPath, pFile, sharedLockByte, 1, 0); } @@ -38058,12 +41280,6 @@ static int nfsUnlock(sqlite3_file *id, int eFileLock){ ** Seek to the offset passed as the second argument, then read cnt ** bytes into pBuf. Return the number of bytes actually read. ** -** NB: If you define USE_PREAD or USE_PREAD64, then it might also -** be necessary to define _XOPEN_SOURCE to be 500. This varies from -** one system to another. Since SQLite does not define USE_PREAD -** in any form by default, we will not attempt to define _XOPEN_SOURCE. -** See tickets #2741 and #2681. -** ** To avoid stomping the errno value on a failed read the lastErrno value ** is set before returning. */ @@ -38138,7 +41354,7 @@ static int unixRead( #endif #if SQLITE_MAX_MMAP_SIZE>0 - /* Deal with as much of this read request as possible by transfering + /* Deal with as much of this read request as possible by transferring ** data from the memory mapping using memcpy(). */ if( offset<pFile->mmapSize ){ if( offset+amt <= pFile->mmapSize ){ @@ -38290,7 +41506,7 @@ static int unixWrite( #endif #if defined(SQLITE_MMAP_READWRITE) && SQLITE_MAX_MMAP_SIZE>0 - /* Deal with as much of this write request as possible by transfering + /* Deal with as much of this write request as possible by transferring ** data from the memory mapping using memcpy(). */ if( offset<pFile->mmapSize ){ if( offset+amt <= pFile->mmapSize ){ @@ -38412,7 +41628,7 @@ static int full_fsync(int fd, int fullSync, int dataOnly){ /* If we compiled with the SQLITE_NO_SYNC flag, then syncing is a ** no-op. But go ahead and call fstat() to validate the file ** descriptor as we need a method to provoke a failure during - ** coverate testing. + ** coverage testing. */ #ifdef SQLITE_NO_SYNC { @@ -38805,7 +42021,13 @@ static int unixFileControl(sqlite3_file *id, int op, void *pArg){ #ifdef SQLITE_ENABLE_SETLK_TIMEOUT case SQLITE_FCNTL_LOCK_TIMEOUT: { int iOld = pFile->iBusyTimeout; +#if SQLITE_ENABLE_SETLK_TIMEOUT==1 pFile->iBusyTimeout = *(int*)pArg; +#elif SQLITE_ENABLE_SETLK_TIMEOUT==2 + pFile->iBusyTimeout = !!(*(int*)pArg); +#else +# error "SQLITE_ENABLE_SETLK_TIMEOUT must be set to 1 or 2" +#endif *(int*)pArg = iOld; return SQLITE_OK; } @@ -39058,6 +42280,25 @@ static int unixGetpagesize(void){ ** Either unixShmNode.pShmMutex must be held or unixShmNode.nRef==0 and ** unixMutexHeld() is true when reading or writing any other field ** in this structure. +** +** aLock[SQLITE_SHM_NLOCK]: +** This array records the various locks held by clients on each of the +** SQLITE_SHM_NLOCK slots. If the aLock[] entry is set to 0, then no +** locks are held by the process on this slot. If it is set to -1, then +** some client holds an EXCLUSIVE lock on the locking slot. If the aLock[] +** value is set to a positive value, then it is the number of shared +** locks currently held on the slot. +** +** aMutex[SQLITE_SHM_NLOCK]: +** Normally, when SQLITE_ENABLE_SETLK_TIMEOUT is not defined, mutex +** pShmMutex is used to protect the aLock[] array and the right to +** call fcntl() on unixShmNode.hShm to obtain or release locks. +** +** If SQLITE_ENABLE_SETLK_TIMEOUT is defined though, we use an array +** of mutexes - one for each locking slot. To read or write locking +** slot aLock[iSlot], the caller must hold the corresponding mutex +** aMutex[iSlot]. Similarly, to call fcntl() to obtain or release a +** lock corresponding to slot iSlot, mutex aMutex[iSlot] must be held. */ struct unixShmNode { unixInodeInfo *pInode; /* unixInodeInfo that owns this SHM node */ @@ -39071,10 +42312,11 @@ struct unixShmNode { char **apRegion; /* Array of mapped shared-memory regions */ int nRef; /* Number of unixShm objects pointing to this */ unixShm *pFirst; /* All unixShm objects pointing to this */ +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + sqlite3_mutex *aMutex[SQLITE_SHM_NLOCK]; +#endif int aLock[SQLITE_SHM_NLOCK]; /* # shared locks on slot, -1==excl lock */ #ifdef SQLITE_DEBUG - u8 exclMask; /* Mask of exclusive locks held */ - u8 sharedMask; /* Mask of shared locks held */ u8 nextShmId; /* Next available unixShm.id value */ #endif }; @@ -39157,16 +42399,35 @@ static int unixShmSystemLock( struct flock f; /* The posix advisory locking structure */ int rc = SQLITE_OK; /* Result code form fcntl() */ - /* Access to the unixShmNode object is serialized by the caller */ pShmNode = pFile->pInode->pShmNode; - assert( pShmNode->nRef==0 || sqlite3_mutex_held(pShmNode->pShmMutex) ); - assert( pShmNode->nRef>0 || unixMutexHeld() ); + + /* Assert that the parameters are within expected range and that the + ** correct mutex or mutexes are held. */ + assert( pShmNode->nRef>=0 ); + assert( (ofst==UNIX_SHM_DMS && n==1) + || (ofst>=UNIX_SHM_BASE && ofst+n<=(UNIX_SHM_BASE+SQLITE_SHM_NLOCK)) + ); + if( ofst==UNIX_SHM_DMS ){ + assert( pShmNode->nRef>0 || unixMutexHeld() ); + assert( pShmNode->nRef==0 || sqlite3_mutex_held(pShmNode->pShmMutex) ); + }else{ +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + int ii; + for(ii=ofst-UNIX_SHM_BASE; ii<ofst-UNIX_SHM_BASE+n; ii++){ + assert( sqlite3_mutex_held(pShmNode->aMutex[ii]) ); + } +#else + assert( sqlite3_mutex_held(pShmNode->pShmMutex) ); + assert( pShmNode->nRef>0 ); +#endif + } /* Shared locks never span more than one byte */ assert( n==1 || lockType!=F_RDLCK ); /* Locks are within range */ assert( n>=1 && n<=SQLITE_SHM_NLOCK ); + assert( ofst>=UNIX_SHM_BASE && ofst<=(UNIX_SHM_DMS+SQLITE_SHM_NLOCK) ); if( pShmNode->hShm>=0 ){ int res; @@ -39177,7 +42438,7 @@ static int unixShmSystemLock( f.l_len = n; res = osSetPosixAdvisoryLock(pShmNode->hShm, &f, pFile); if( res==-1 ){ -#ifdef SQLITE_ENABLE_SETLK_TIMEOUT +#if defined(SQLITE_ENABLE_SETLK_TIMEOUT) && SQLITE_ENABLE_SETLK_TIMEOUT==1 rc = (pFile->iBusyTimeout ? SQLITE_BUSY_TIMEOUT : SQLITE_BUSY); #else rc = SQLITE_BUSY; @@ -39185,39 +42446,28 @@ static int unixShmSystemLock( } } - /* Update the global lock state and do debug tracing */ + /* Do debug tracing */ #ifdef SQLITE_DEBUG - { u16 mask; OSTRACE(("SHM-LOCK ")); - mask = ofst>31 ? 0xffff : (1<<(ofst+n)) - (1<<ofst); if( rc==SQLITE_OK ){ if( lockType==F_UNLCK ){ - OSTRACE(("unlock %d ok", ofst)); - pShmNode->exclMask &= ~mask; - pShmNode->sharedMask &= ~mask; + OSTRACE(("unlock %d..%d ok\n", ofst, ofst+n-1)); }else if( lockType==F_RDLCK ){ - OSTRACE(("read-lock %d ok", ofst)); - pShmNode->exclMask &= ~mask; - pShmNode->sharedMask |= mask; + OSTRACE(("read-lock %d..%d ok\n", ofst, ofst+n-1)); }else{ assert( lockType==F_WRLCK ); - OSTRACE(("write-lock %d ok", ofst)); - pShmNode->exclMask |= mask; - pShmNode->sharedMask &= ~mask; + OSTRACE(("write-lock %d..%d ok\n", ofst, ofst+n-1)); } }else{ if( lockType==F_UNLCK ){ - OSTRACE(("unlock %d failed", ofst)); + OSTRACE(("unlock %d..%d failed\n", ofst, ofst+n-1)); }else if( lockType==F_RDLCK ){ - OSTRACE(("read-lock failed")); + OSTRACE(("read-lock %d..%d failed\n", ofst, ofst+n-1)); }else{ assert( lockType==F_WRLCK ); - OSTRACE(("write-lock %d failed", ofst)); + OSTRACE(("write-lock %d..%d failed\n", ofst, ofst+n-1)); } } - OSTRACE((" - afterwards %03x,%03x\n", - pShmNode->sharedMask, pShmNode->exclMask)); - } #endif return rc; @@ -39254,6 +42504,11 @@ static void unixShmPurge(unixFile *pFd){ int i; assert( p->pInode==pFd->pInode ); sqlite3_mutex_free(p->pShmMutex); +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + for(i=0; i<SQLITE_SHM_NLOCK; i++){ + sqlite3_mutex_free(p->aMutex[i]); + } +#endif for(i=0; i<p->nRegion; i+=nShmPerMap){ if( p->hShm>=0 ){ osMunmap(p->apRegion[i], p->szRegion); @@ -39313,7 +42568,20 @@ static int unixLockSharedMemory(unixFile *pDbFd, unixShmNode *pShmNode){ pShmNode->isUnlocked = 1; rc = SQLITE_READONLY_CANTINIT; }else{ +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + /* Do not use a blocking lock here. If the lock cannot be obtained + ** immediately, it means some other connection is truncating the + ** *-shm file. And after it has done so, it will not release its + ** lock, but only downgrade it to a shared lock. So no point in + ** blocking here. The call below to obtain the shared DMS lock may + ** use a blocking lock. */ + int iSaveTimeout = pDbFd->iBusyTimeout; + pDbFd->iBusyTimeout = 0; +#endif rc = unixShmSystemLock(pDbFd, F_WRLCK, UNIX_SHM_DMS, 1); +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + pDbFd->iBusyTimeout = iSaveTimeout; +#endif /* The first connection to attach must truncate the -shm file. We ** truncate to 3 bytes (an arbitrary small number, less than the ** -shm header size) rather than 0 as a system debugging aid, to @@ -39434,6 +42702,18 @@ static int unixOpenSharedMemory(unixFile *pDbFd){ rc = SQLITE_NOMEM_BKPT; goto shm_open_err; } +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + { + int ii; + for(ii=0; ii<SQLITE_SHM_NLOCK; ii++){ + pShmNode->aMutex[ii] = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST); + if( pShmNode->aMutex[ii]==0 ){ + rc = SQLITE_NOMEM_BKPT; + goto shm_open_err; + } + } + } +#endif } if( pInode->bProcessLock==0 ){ @@ -39655,9 +42935,11 @@ shmpage_out: */ #ifdef SQLITE_DEBUG static int assertLockingArrayOk(unixShmNode *pShmNode){ +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + return 1; +#else unixShm *pX; int aLock[SQLITE_SHM_NLOCK]; - assert( sqlite3_mutex_held(pShmNode->pShmMutex) ); memset(aLock, 0, sizeof(aLock)); for(pX=pShmNode->pFirst; pX; pX=pX->pNext){ @@ -39675,13 +42957,14 @@ static int assertLockingArrayOk(unixShmNode *pShmNode){ assert( 0==memcmp(pShmNode->aLock, aLock, sizeof(aLock)) ); return (memcmp(pShmNode->aLock, aLock, sizeof(aLock))==0); +#endif } #endif /* ** Change the lock state for a shared-memory segment. ** -** Note that the relationship between SHAREd and EXCLUSIVE locks is a little +** Note that the relationship between SHARED and EXCLUSIVE locks is a little ** different here than in posix. In xShmLock(), one can go from unlocked ** to shared and back or from unlocked to exclusive and back. But one may ** not go from shared to exclusive or from exclusive to shared. @@ -39696,7 +42979,7 @@ static int unixShmLock( unixShm *p; /* The shared memory being locked */ unixShmNode *pShmNode; /* The underlying file iNode */ int rc = SQLITE_OK; /* Result code */ - u16 mask; /* Mask of locks to take or release */ + u16 mask = (1<<(ofst+n)) - (1<<ofst); /* Mask of locks to take or release */ int *aLock; p = pDbFd->pShm; @@ -39731,88 +43014,151 @@ static int unixShmLock( ** It is not permitted to block on the RECOVER lock. */ #ifdef SQLITE_ENABLE_SETLK_TIMEOUT - assert( (flags & SQLITE_SHM_UNLOCK) || pDbFd->iBusyTimeout==0 || ( - (ofst!=2) /* not RECOVER */ - && (ofst!=1 || (p->exclMask|p->sharedMask)==0) - && (ofst!=0 || (p->exclMask|p->sharedMask)<3) - && (ofst<3 || (p->exclMask|p->sharedMask)<(1<<ofst)) - )); + { + u16 lockMask = (p->exclMask|p->sharedMask); + assert( (flags & SQLITE_SHM_UNLOCK) || pDbFd->iBusyTimeout==0 || ( + (ofst!=2) /* not RECOVER */ + && (ofst!=1 || lockMask==0 || lockMask==2) + && (ofst!=0 || lockMask<3) + && (ofst<3 || lockMask<(1<<ofst)) + )); + } #endif - mask = (1<<(ofst+n)) - (1<<ofst); - assert( n>1 || mask==(1<<ofst) ); - sqlite3_mutex_enter(pShmNode->pShmMutex); - assert( assertLockingArrayOk(pShmNode) ); - if( flags & SQLITE_SHM_UNLOCK ){ - if( (p->exclMask|p->sharedMask) & mask ){ - int ii; - int bUnlock = 1; + /* Check if there is any work to do. There are three cases: + ** + ** a) An unlock operation where there are locks to unlock, + ** b) An shared lock where the requested lock is not already held + ** c) An exclusive lock where the requested lock is not already held + ** + ** The SQLite core never requests an exclusive lock that it already holds. + ** This is assert()ed below. + */ + assert( flags!=(SQLITE_SHM_EXCLUSIVE|SQLITE_SHM_LOCK) + || 0==(p->exclMask & mask) + ); + if( ((flags & SQLITE_SHM_UNLOCK) && ((p->exclMask|p->sharedMask) & mask)) + || (flags==(SQLITE_SHM_SHARED|SQLITE_SHM_LOCK) && 0==(p->sharedMask & mask)) + || (flags==(SQLITE_SHM_EXCLUSIVE|SQLITE_SHM_LOCK)) + ){ - for(ii=ofst; ii<ofst+n; ii++){ - if( aLock[ii]>((p->sharedMask & (1<<ii)) ? 1 : 0) ){ - bUnlock = 0; - } + /* Take the required mutexes. In SETLK_TIMEOUT mode (blocking locks), if + ** this is an attempt on an exclusive lock use sqlite3_mutex_try(). If any + ** other thread is holding this mutex, then it is either holding or about + ** to hold a lock exclusive to the one being requested, and we may + ** therefore return SQLITE_BUSY to the caller. + ** + ** Doing this prevents some deadlock scenarios. For example, thread 1 may + ** be a checkpointer blocked waiting on the WRITER lock. And thread 2 + ** may be a normal SQL client upgrading to a write transaction. In this + ** case thread 2 does a non-blocking request for the WRITER lock. But - + ** if it were to use sqlite3_mutex_enter() then it would effectively + ** become a (doomed) blocking request, as thread 2 would block until thread + ** 1 obtained WRITER and released the mutex. Since thread 2 already holds + ** a lock on a read-locking slot at this point, this breaks the + ** anti-deadlock rules (see above). */ +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + int iMutex; + for(iMutex=ofst; iMutex<ofst+n; iMutex++){ + if( flags==(SQLITE_SHM_LOCK|SQLITE_SHM_EXCLUSIVE) ){ + rc = sqlite3_mutex_try(pShmNode->aMutex[iMutex]); + if( rc!=SQLITE_OK ) goto leave_shmnode_mutexes; + }else{ + sqlite3_mutex_enter(pShmNode->aMutex[iMutex]); } + } +#else + sqlite3_mutex_enter(pShmNode->pShmMutex); +#endif - if( bUnlock ){ - rc = unixShmSystemLock(pDbFd, F_UNLCK, ofst+UNIX_SHM_BASE, n); - if( rc==SQLITE_OK ){ - memset(&aLock[ofst], 0, sizeof(int)*n); + if( ALWAYS(rc==SQLITE_OK) ){ + if( flags & SQLITE_SHM_UNLOCK ){ + /* Case (a) - unlock. */ + int bUnlock = 1; + assert( (p->exclMask & p->sharedMask)==0 ); + assert( !(flags & SQLITE_SHM_EXCLUSIVE) || (p->exclMask & mask)==mask ); + assert( !(flags & SQLITE_SHM_SHARED) || (p->sharedMask & mask)==mask ); + + /* If this is a SHARED lock being unlocked, it is possible that other + ** clients within this process are holding the same SHARED lock. In + ** this case, set bUnlock to 0 so that the posix lock is not removed + ** from the file-descriptor below. */ + if( flags & SQLITE_SHM_SHARED ){ + assert( n==1 ); + assert( aLock[ofst]>=1 ); + if( aLock[ofst]>1 ){ + bUnlock = 0; + aLock[ofst]--; + p->sharedMask &= ~mask; + } } - }else if( ALWAYS(p->sharedMask & (1<<ofst)) ){ - assert( n==1 && aLock[ofst]>1 ); - aLock[ofst]--; - } - /* Undo the local locks */ - if( rc==SQLITE_OK ){ - p->exclMask &= ~mask; - p->sharedMask &= ~mask; - } - } - }else if( flags & SQLITE_SHM_SHARED ){ - assert( n==1 ); - assert( (p->exclMask & (1<<ofst))==0 ); - if( (p->sharedMask & mask)==0 ){ - if( aLock[ofst]<0 ){ - rc = SQLITE_BUSY; - }else if( aLock[ofst]==0 ){ - rc = unixShmSystemLock(pDbFd, F_RDLCK, ofst+UNIX_SHM_BASE, n); - } + if( bUnlock ){ + rc = unixShmSystemLock(pDbFd, F_UNLCK, ofst+UNIX_SHM_BASE, n); + if( rc==SQLITE_OK ){ + memset(&aLock[ofst], 0, sizeof(int)*n); + p->sharedMask &= ~mask; + p->exclMask &= ~mask; + } + } + }else if( flags & SQLITE_SHM_SHARED ){ + /* Case (b) - a shared lock. */ - /* Get the local shared locks */ - if( rc==SQLITE_OK ){ - p->sharedMask |= mask; - aLock[ofst]++; - } - } - }else{ - /* Make sure no sibling connections hold locks that will block this - ** lock. If any do, return SQLITE_BUSY right away. */ - int ii; - for(ii=ofst; ii<ofst+n; ii++){ - assert( (p->sharedMask & mask)==0 ); - if( ALWAYS((p->exclMask & (1<<ii))==0) && aLock[ii] ){ - rc = SQLITE_BUSY; - break; - } - } + if( aLock[ofst]<0 ){ + /* An exclusive lock is held by some other connection. BUSY. */ + rc = SQLITE_BUSY; + }else if( aLock[ofst]==0 ){ + rc = unixShmSystemLock(pDbFd, F_RDLCK, ofst+UNIX_SHM_BASE, n); + } - /* Get the exclusive locks at the system level. Then if successful - ** also update the in-memory values. */ - if( rc==SQLITE_OK ){ - rc = unixShmSystemLock(pDbFd, F_WRLCK, ofst+UNIX_SHM_BASE, n); - if( rc==SQLITE_OK ){ + /* Get the local shared locks */ + if( rc==SQLITE_OK ){ + p->sharedMask |= mask; + aLock[ofst]++; + } + }else{ + /* Case (c) - an exclusive lock. */ + int ii; + + assert( flags==(SQLITE_SHM_LOCK|SQLITE_SHM_EXCLUSIVE) ); assert( (p->sharedMask & mask)==0 ); - p->exclMask |= mask; + assert( (p->exclMask & mask)==0 ); + + /* Make sure no sibling connections hold locks that will block this + ** lock. If any do, return SQLITE_BUSY right away. */ for(ii=ofst; ii<ofst+n; ii++){ - aLock[ii] = -1; + if( aLock[ii] ){ + rc = SQLITE_BUSY; + break; + } + } + + /* Get the exclusive locks at the system level. Then if successful + ** also update the in-memory values. */ + if( rc==SQLITE_OK ){ + rc = unixShmSystemLock(pDbFd, F_WRLCK, ofst+UNIX_SHM_BASE, n); + if( rc==SQLITE_OK ){ + p->exclMask |= mask; + for(ii=ofst; ii<ofst+n; ii++){ + aLock[ii] = -1; + } + } } } + assert( assertLockingArrayOk(pShmNode) ); + } + + /* Drop the mutexes acquired above. */ +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + leave_shmnode_mutexes: + for(iMutex--; iMutex>=ofst; iMutex--){ + sqlite3_mutex_leave(pShmNode->aMutex[iMutex]); } +#else + sqlite3_mutex_leave(pShmNode->pShmMutex); +#endif } - assert( assertLockingArrayOk(pShmNode) ); - sqlite3_mutex_leave(pShmNode->pShmMutex); + OSTRACE(("SHM-LOCK shmid-%d, pid-%d got %03x,%03x\n", p->id, osGetpid(0), p->sharedMask, p->exclMask)); return rc; @@ -40062,11 +43408,16 @@ static int unixFetch(sqlite3_file *fd, i64 iOff, int nAmt, void **pp){ #if SQLITE_MAX_MMAP_SIZE>0 if( pFd->mmapSizeMax>0 ){ + /* Ensure that there is always at least a 256 byte buffer of addressable + ** memory following the returned page. If the database is corrupt, + ** SQLite may overread the page slightly (in practice only a few bytes, + ** but 256 is safe, round, number). */ + const int nEofBuffer = 256; if( pFd->pMapRegion==0 ){ int rc = unixMapfile(pFd, -1); if( rc!=SQLITE_OK ) return rc; } - if( pFd->mmapSize >= iOff+nAmt ){ + if( pFd->mmapSize >= (iOff+nAmt+nEofBuffer) ){ *pp = &((u8 *)pFd->pMapRegion)[iOff]; pFd->nFetchOut++; } @@ -40638,6 +43989,7 @@ static const char *unixTempFileDir(void){ static int unixGetTempname(int nBuf, char *zBuf){ const char *zDir; int iLimit = 0; + int rc = SQLITE_OK; /* It's odd to simulate an io-error here, but really this is just ** using the io-error infrastructure to test that SQLite handles this @@ -40646,18 +43998,26 @@ static int unixGetTempname(int nBuf, char *zBuf){ zBuf[0] = 0; SimulateIOError( return SQLITE_IOERR ); + sqlite3_mutex_enter(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); zDir = unixTempFileDir(); - if( zDir==0 ) return SQLITE_IOERR_GETTEMPPATH; - do{ - u64 r; - sqlite3_randomness(sizeof(r), &r); - assert( nBuf>2 ); - zBuf[nBuf-2] = 0; - sqlite3_snprintf(nBuf, zBuf, "%s/"SQLITE_TEMP_FILE_PREFIX"%llx%c", - zDir, r, 0); - if( zBuf[nBuf-2]!=0 || (iLimit++)>10 ) return SQLITE_ERROR; - }while( osAccess(zBuf,0)==0 ); - return SQLITE_OK; + if( zDir==0 ){ + rc = SQLITE_IOERR_GETTEMPPATH; + }else{ + do{ + u64 r; + sqlite3_randomness(sizeof(r), &r); + assert( nBuf>2 ); + zBuf[nBuf-2] = 0; + sqlite3_snprintf(nBuf, zBuf, "%s/"SQLITE_TEMP_FILE_PREFIX"%llx%c", + zDir, r, 0); + if( zBuf[nBuf-2]!=0 || (iLimit++)>10 ){ + rc = SQLITE_ERROR; + break; + } + }while( osAccess(zBuf,0)==0 ); + } + sqlite3_mutex_leave(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); + return rc; } #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__) @@ -40800,20 +44160,23 @@ static int findCreateFileMode( ** ** where NN is a decimal number. The NN naming schemes are ** used by the test_multiplex.c module. + ** + ** In normal operation, the journal file name will always contain + ** a '-' character. However in 8+3 filename mode, or if a corrupt + ** rollback journal specifies a super-journal with a goofy name, then + ** the '-' might be missing or the '-' might be the first character in + ** the filename. In that case, just return SQLITE_OK with *pMode==0. */ nDb = sqlite3Strlen30(zPath) - 1; - while( zPath[nDb]!='-' ){ - /* In normal operation, the journal file name will always contain - ** a '-' character. However in 8+3 filename mode, or if a corrupt - ** rollback journal specifies a super-journal with a goofy name, then - ** the '-' might be missing. */ - if( nDb==0 || zPath[nDb]=='.' ) return SQLITE_OK; + while( nDb>0 && zPath[nDb]!='.' ){ + if( zPath[nDb]=='-' ){ + memcpy(zDb, zPath, nDb); + zDb[nDb] = '\0'; + rc = getFileMode(zDb, pMode, pUid, pGid); + break; + } nDb--; } - memcpy(zDb, zPath, nDb); - zDb[nDb] = '\0'; - - rc = getFileMode(zDb, pMode, pUid, pGid); }else if( flags & SQLITE_OPEN_DELETEONCLOSE ){ *pMode = 0600; }else if( flags & SQLITE_OPEN_URI ){ @@ -41203,86 +44566,97 @@ static int unixAccess( } /* -** If the last component of the pathname in z[0]..z[j-1] is something -** other than ".." then back it out and return true. If the last -** component is empty or if it is ".." then return false. +** A pathname under construction */ -static int unixBackupDir(const char *z, int *pJ){ - int j = *pJ; - int i; - if( j<=0 ) return 0; - for(i=j-1; i>0 && z[i-1]!='/'; i--){} - if( i==0 ) return 0; - if( z[i]=='.' && i==j-2 && z[i+1]=='.' ) return 0; - *pJ = i-1; - return 1; -} +typedef struct DbPath DbPath; +struct DbPath { + int rc; /* Non-zero following any error */ + int nSymlink; /* Number of symlinks resolved */ + char *zOut; /* Write the pathname here */ + int nOut; /* Bytes of space available to zOut[] */ + int nUsed; /* Bytes of zOut[] currently being used */ +}; + +/* Forward reference */ +static void appendAllPathElements(DbPath*,const char*); /* -** Convert a relative pathname into a full pathname. Also -** simplify the pathname as follows: -** -** Remove all instances of /./ -** Remove all isntances of /X/../ for any X +** Append a single path element to the DbPath under construction */ -static int mkFullPathname( - const char *zPath, /* Input path */ - char *zOut, /* Output buffer */ - int nOut /* Allocated size of buffer zOut */ +static void appendOnePathElement( + DbPath *pPath, /* Path under construction, to which to append zName */ + const char *zName, /* Name to append to pPath. Not zero-terminated */ + int nName /* Number of significant bytes in zName */ ){ - int nPath = sqlite3Strlen30(zPath); - int iOff = 0; - int i, j; - if( zPath[0]!='/' ){ - if( osGetcwd(zOut, nOut-2)==0 ){ - return unixLogError(SQLITE_CANTOPEN_BKPT, "getcwd", zPath); + assert( nName>0 ); + assert( zName!=0 ); + if( zName[0]=='.' ){ + if( nName==1 ) return; + if( zName[1]=='.' && nName==2 ){ + if( pPath->nUsed>1 ){ + assert( pPath->zOut[0]=='/' ); + while( pPath->zOut[--pPath->nUsed]!='/' ){} + } + return; } - iOff = sqlite3Strlen30(zOut); - zOut[iOff++] = '/'; } - if( (iOff+nPath+1)>nOut ){ - /* SQLite assumes that xFullPathname() nul-terminates the output buffer - ** even if it returns an error. */ - zOut[iOff] = '\0'; - return SQLITE_CANTOPEN_BKPT; - } - sqlite3_snprintf(nOut-iOff, &zOut[iOff], "%s", zPath); - - /* Remove duplicate '/' characters. Except, two // at the beginning - ** of a pathname is allowed since this is important on windows. */ - for(i=j=1; zOut[i]; i++){ - zOut[j++] = zOut[i]; - while( zOut[i]=='/' && zOut[i+1]=='/' ) i++; + if( pPath->nUsed + nName + 2 >= pPath->nOut ){ + pPath->rc = SQLITE_ERROR; + return; } - zOut[j] = 0; - - assert( zOut[0]=='/' ); - for(i=j=0; zOut[i]; i++){ - if( zOut[i]=='/' ){ - /* Skip over internal "/." directory components */ - if( zOut[i+1]=='.' && zOut[i+2]=='/' ){ - i += 1; - continue; + pPath->zOut[pPath->nUsed++] = '/'; + memcpy(&pPath->zOut[pPath->nUsed], zName, nName); + pPath->nUsed += nName; +#if defined(HAVE_READLINK) && defined(HAVE_LSTAT) + if( pPath->rc==SQLITE_OK ){ + const char *zIn; + struct stat buf; + pPath->zOut[pPath->nUsed] = 0; + zIn = pPath->zOut; + if( osLstat(zIn, &buf)!=0 ){ + if( errno!=ENOENT ){ + pPath->rc = unixLogError(SQLITE_CANTOPEN_BKPT, "lstat", zIn); } - - /* If this is a "/.." directory component then back out the - ** previous term of the directory if it is something other than "..". - */ - if( zOut[i+1]=='.' - && zOut[i+2]=='.' - && zOut[i+3]=='/' - && unixBackupDir(zOut, &j) - ){ - i += 2; - continue; + }else if( S_ISLNK(buf.st_mode) ){ + ssize_t got; + char zLnk[SQLITE_MAX_PATHLEN+2]; + if( pPath->nSymlink++ > SQLITE_MAX_SYMLINK ){ + pPath->rc = SQLITE_CANTOPEN_BKPT; + return; + } + got = osReadlink(zIn, zLnk, sizeof(zLnk)-2); + if( got<=0 || got>=(ssize_t)sizeof(zLnk)-2 ){ + pPath->rc = unixLogError(SQLITE_CANTOPEN_BKPT, "readlink", zIn); + return; + } + zLnk[got] = 0; + if( zLnk[0]=='/' ){ + pPath->nUsed = 0; + }else{ + pPath->nUsed -= nName + 1; } + appendAllPathElements(pPath, zLnk); } - if( ALWAYS(j>=0) ) zOut[j] = zOut[i]; - j++; } - if( NEVER(j==0) ) zOut[j++] = '/'; - zOut[j] = 0; - return SQLITE_OK; +#endif +} + +/* +** Append all path elements in zPath to the DbPath under construction. +*/ +static void appendAllPathElements( + DbPath *pPath, /* Path under construction, to which to append zName */ + const char *zPath /* Path to append to pPath. Is zero-terminated */ +){ + int i = 0; + int j = 0; + do{ + while( zPath[i] && zPath[i]!='/' ){ i++; } + if( i>j ){ + appendOnePathElement(pPath, &zPath[j], i-j); + } + j = i+1; + }while( zPath[i++] ); } /* @@ -41300,86 +44674,27 @@ static int unixFullPathname( int nOut, /* Size of output buffer in bytes */ char *zOut /* Output buffer */ ){ -#if !defined(HAVE_READLINK) || !defined(HAVE_LSTAT) - return mkFullPathname(zPath, zOut, nOut); -#else - int rc = SQLITE_OK; - int nByte; - int nLink = 0; /* Number of symbolic links followed so far */ - const char *zIn = zPath; /* Input path for each iteration of loop */ - char *zDel = 0; - - assert( pVfs->mxPathname==MAX_PATHNAME ); + DbPath path; UNUSED_PARAMETER(pVfs); - - /* It's odd to simulate an io-error here, but really this is just - ** using the io-error infrastructure to test that SQLite handles this - ** function failing. This function could fail if, for example, the - ** current working directory has been unlinked. - */ - SimulateIOError( return SQLITE_ERROR ); - - do { - - /* Call stat() on path zIn. Set bLink to true if the path is a symbolic - ** link, or false otherwise. */ - int bLink = 0; - struct stat buf; - if( osLstat(zIn, &buf)!=0 ){ - if( errno!=ENOENT ){ - rc = unixLogError(SQLITE_CANTOPEN_BKPT, "lstat", zIn); - } - }else{ - bLink = S_ISLNK(buf.st_mode); - } - - if( bLink ){ - nLink++; - if( zDel==0 ){ - zDel = sqlite3_malloc(nOut); - if( zDel==0 ) rc = SQLITE_NOMEM_BKPT; - }else if( nLink>=SQLITE_MAX_SYMLINKS ){ - rc = SQLITE_CANTOPEN_BKPT; - } - - if( rc==SQLITE_OK ){ - nByte = osReadlink(zIn, zDel, nOut-1); - if( nByte<0 ){ - rc = unixLogError(SQLITE_CANTOPEN_BKPT, "readlink", zIn); - }else{ - if( zDel[0]!='/' ){ - int n; - for(n = sqlite3Strlen30(zIn); n>0 && zIn[n-1]!='/'; n--); - if( nByte+n+1>nOut ){ - rc = SQLITE_CANTOPEN_BKPT; - }else{ - memmove(&zDel[n], zDel, nByte+1); - memcpy(zDel, zIn, n); - nByte += n; - } - } - zDel[nByte] = '\0'; - } - } - - zIn = zDel; - } - - assert( rc!=SQLITE_OK || zIn!=zOut || zIn[0]=='/' ); - if( rc==SQLITE_OK && zIn!=zOut ){ - rc = mkFullPathname(zIn, zOut, nOut); + path.rc = 0; + path.nUsed = 0; + path.nSymlink = 0; + path.nOut = nOut; + path.zOut = zOut; + if( zPath[0]!='/' ){ + char zPwd[SQLITE_MAX_PATHLEN+2]; + if( osGetcwd(zPwd, sizeof(zPwd)-2)==0 ){ + return unixLogError(SQLITE_CANTOPEN_BKPT, "getcwd", zPath); } - if( bLink==0 ) break; - zIn = zOut; - }while( rc==SQLITE_OK ); - - sqlite3_free(zDel); - if( rc==SQLITE_OK && nLink ) rc = SQLITE_OK_SYMLINK; - return rc; -#endif /* HAVE_READLINK && HAVE_LSTAT */ + appendAllPathElements(&path, zPwd); + } + appendAllPathElements(&path, zPath); + zOut[path.nUsed] = 0; + if( path.rc || path.nUsed<2 ) return SQLITE_CANTOPEN_BKPT; + if( path.nSymlink ) return SQLITE_OK_SYMLINK; + return SQLITE_OK; } - #ifndef SQLITE_OMIT_LOAD_EXTENSION /* ** Interfaces for opening a shared library, finding entry points @@ -41493,12 +44808,17 @@ static int unixRandomness(sqlite3_vfs *NotUsed, int nBuf, char *zBuf){ ** than the argument. */ static int unixSleep(sqlite3_vfs *NotUsed, int microseconds){ -#if OS_VXWORKS +#if !defined(HAVE_NANOSLEEP) || HAVE_NANOSLEEP+0 struct timespec sp; - sp.tv_sec = microseconds / 1000000; sp.tv_nsec = (microseconds % 1000000) * 1000; + + /* Almost all modern unix systems support nanosleep(). But if you are + ** compiling for one of the rare exceptions, you can use + ** -DHAVE_NANOSLEEP=0 (perhaps in conjuction with -DHAVE_USLEEP if + ** usleep() is available) in order to bypass the use of nanosleep() */ nanosleep(&sp, NULL); + UNUSED_PARAMETER(NotUsed); return microseconds; #elif defined(HAVE_USLEEP) && HAVE_USLEEP @@ -42875,8 +46195,16 @@ SQLITE_API int sqlite3_os_init(void){ /* Register all VFSes defined in the aVfs[] array */ for(i=0; i<(sizeof(aVfs)/sizeof(sqlite3_vfs)); i++){ +#ifdef SQLITE_DEFAULT_UNIX_VFS + sqlite3_vfs_register(&aVfs[i], + 0==strcmp(aVfs[i].zName,SQLITE_DEFAULT_UNIX_VFS)); +#else sqlite3_vfs_register(&aVfs[i], i==0); +#endif } +#ifdef SQLITE_OS_KV_OPTIONAL + sqlite3KvvfsInit(); +#endif unixBigLock = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_VFS1); #ifndef SQLITE_OMIT_WAL @@ -44080,7 +47408,7 @@ static struct win_syscall { /* ** This is the xSetSystemCall() method of sqlite3_vfs for all of the -** "win32" VFSes. Return SQLITE_OK opon successfully updating the +** "win32" VFSes. Return SQLITE_OK upon successfully updating the ** system call pointer, or SQLITE_NOTFOUND if there is no configurable ** system call named zName. */ @@ -44839,10 +48167,12 @@ SQLITE_API int sqlite3_win32_set_directory8( const char *zValue /* New value for directory being set or reset */ ){ char **ppDirectory = 0; + int rc; #ifndef SQLITE_OMIT_AUTOINIT - int rc = sqlite3_initialize(); + rc = sqlite3_initialize(); if( rc ) return rc; #endif + sqlite3_mutex_enter(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); if( type==SQLITE_WIN32_DATA_DIRECTORY_TYPE ){ ppDirectory = &sqlite3_data_directory; }else if( type==SQLITE_WIN32_TEMP_DIRECTORY_TYPE ){ @@ -44857,14 +48187,19 @@ SQLITE_API int sqlite3_win32_set_directory8( if( zValue && zValue[0] ){ zCopy = sqlite3_mprintf("%s", zValue); if ( zCopy==0 ){ - return SQLITE_NOMEM_BKPT; + rc = SQLITE_NOMEM_BKPT; + goto set_directory8_done; } } sqlite3_free(*ppDirectory); *ppDirectory = zCopy; - return SQLITE_OK; + rc = SQLITE_OK; + }else{ + rc = SQLITE_ERROR; } - return SQLITE_ERROR; +set_directory8_done: + sqlite3_mutex_leave(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); + return rc; } /* @@ -45653,7 +48988,7 @@ static int winRead( pFile->h, pBuf, amt, offset, pFile->locktype)); #if SQLITE_MAX_MMAP_SIZE>0 - /* Deal with as much of this read request as possible by transfering + /* Deal with as much of this read request as possible by transferring ** data from the memory mapping using memcpy(). */ if( offset<pFile->mmapSize ){ if( offset+amt <= pFile->mmapSize ){ @@ -45731,7 +49066,7 @@ static int winWrite( pFile->h, pBuf, amt, offset, pFile->locktype)); #if defined(SQLITE_MMAP_READWRITE) && SQLITE_MAX_MMAP_SIZE>0 - /* Deal with as much of this write request as possible by transfering + /* Deal with as much of this write request as possible by transferring ** data from the memory mapping using memcpy(). */ if( offset<pFile->mmapSize ){ if( offset+amt <= pFile->mmapSize ){ @@ -45841,7 +49176,7 @@ static int winTruncate(sqlite3_file *id, sqlite3_int64 nByte){ ** all references to memory-mapped content are closed. That is doable, ** but involves adding a few branches in the common write code path which ** could slow down normal operations slightly. Hence, we have decided for - ** now to simply make trancations a no-op if there are pending reads. We + ** now to simply make transactions a no-op if there are pending reads. We ** can maybe revisit this decision in the future. */ return SQLITE_OK; @@ -45900,7 +49235,7 @@ static int winTruncate(sqlite3_file *id, sqlite3_int64 nByte){ #ifdef SQLITE_TEST /* ** Count the number of fullsyncs and normal syncs. This is used to test -** that syncs and fullsyncs are occuring at the right times. +** that syncs and fullsyncs are occurring at the right times. */ SQLITE_API int sqlite3_sync_count = 0; SQLITE_API int sqlite3_fullsync_count = 0; @@ -46257,7 +49592,7 @@ static int winLock(sqlite3_file *id, int locktype){ */ if( locktype==EXCLUSIVE_LOCK && res ){ assert( pFile->locktype>=SHARED_LOCK ); - res = winUnlockReadLock(pFile); + (void)winUnlockReadLock(pFile); res = winLockFile(&pFile->h, SQLITE_LOCKFILE_FLAGS, SHARED_FIRST, 0, SHARED_SIZE, 0); if( res ){ @@ -47435,6 +50770,11 @@ static int winFetch(sqlite3_file *fd, i64 iOff, int nAmt, void **pp){ #if SQLITE_MAX_MMAP_SIZE>0 if( pFd->mmapSizeMax>0 ){ + /* Ensure that there is always at least a 256 byte buffer of addressable + ** memory following the returned page. If the database is corrupt, + ** SQLite may overread the page slightly (in practice only a few bytes, + ** but 256 is safe, round, number). */ + const int nEofBuffer = 256; if( pFd->pMapRegion==0 ){ int rc = winMapfile(pFd, -1); if( rc!=SQLITE_OK ){ @@ -47443,7 +50783,7 @@ static int winFetch(sqlite3_file *fd, i64 iOff, int nAmt, void **pp){ return rc; } } - if( pFd->mmapSize >= iOff+nAmt ){ + if( pFd->mmapSize >= (iOff+nAmt+nEofBuffer) ){ assert( pFd->pMapRegion!=0 ); *pp = &((u8 *)pFd->pMapRegion)[iOff]; pFd->nFetchOut++; @@ -47639,6 +50979,19 @@ static int winMakeEndInDirSep(int nBuf, char *zBuf){ } /* +** If sqlite3_temp_directory is defined, take the mutex and return true. +** +** If sqlite3_temp_directory is NULL (undefined), omit the mutex and +** return false. +*/ +static int winTempDirDefined(void){ + sqlite3_mutex_enter(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); + if( sqlite3_temp_directory!=0 ) return 1; + sqlite3_mutex_leave(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); + return 0; +} + +/* ** Create a temporary file name and store the resulting pointer into pzBuf. ** The pointer returned in pzBuf must be freed via sqlite3_free(). */ @@ -47648,6 +51001,7 @@ static int winGetTempname(sqlite3_vfs *pVfs, char **pzBuf){ "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "0123456789"; size_t i, j; + DWORD pid; int nPre = sqlite3Strlen30(SQLITE_TEMP_FILE_PREFIX); int nMax, nBuf, nDir, nLen; char *zBuf; @@ -47674,20 +51028,23 @@ static int winGetTempname(sqlite3_vfs *pVfs, char **pzBuf){ */ nDir = nMax - (nPre + 15); assert( nDir>0 ); - if( sqlite3_temp_directory ){ + if( winTempDirDefined() ){ int nDirLen = sqlite3Strlen30(sqlite3_temp_directory); if( nDirLen>0 ){ if( !winIsDirSep(sqlite3_temp_directory[nDirLen-1]) ){ nDirLen++; } if( nDirLen>nDir ){ + sqlite3_mutex_leave(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); sqlite3_free(zBuf); OSTRACE(("TEMP-FILENAME rc=SQLITE_ERROR\n")); return winLogError(SQLITE_ERROR, 0, "winGetTempname1", 0); } sqlite3_snprintf(nMax, zBuf, "%s", sqlite3_temp_directory); } + sqlite3_mutex_leave(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); } + #if defined(__CYGWIN__) else{ static const char *azDirs[] = { @@ -47857,7 +51214,10 @@ static int winGetTempname(sqlite3_vfs *pVfs, char **pzBuf){ j = sqlite3Strlen30(zBuf); sqlite3_randomness(15, &zBuf[j]); + pid = osGetCurrentProcessId(); for(i=0; i<15; i++, j++){ + zBuf[j] += pid & 0xff; + pid >>= 8; zBuf[j] = (char)zChars[ ((unsigned char)zBuf[j])%(sizeof(zChars)-1) ]; } zBuf[j] = 0; @@ -48095,7 +51455,7 @@ static int winOpen( if( isReadWrite ){ int rc2, isRO = 0; sqlite3BeginBenignMalloc(); - rc2 = winAccess(pVfs, zName, SQLITE_ACCESS_READ, &isRO); + rc2 = winAccess(pVfs, zUtf8Name, SQLITE_ACCESS_READ, &isRO); sqlite3EndBenignMalloc(); if( rc2==SQLITE_OK && isRO ) break; } @@ -48112,7 +51472,7 @@ static int winOpen( if( isReadWrite ){ int rc2, isRO = 0; sqlite3BeginBenignMalloc(); - rc2 = winAccess(pVfs, zName, SQLITE_ACCESS_READ, &isRO); + rc2 = winAccess(pVfs, zUtf8Name, SQLITE_ACCESS_READ, &isRO); sqlite3EndBenignMalloc(); if( rc2==SQLITE_OK && isRO ) break; } @@ -48132,7 +51492,7 @@ static int winOpen( if( isReadWrite ){ int rc2, isRO = 0; sqlite3BeginBenignMalloc(); - rc2 = winAccess(pVfs, zName, SQLITE_ACCESS_READ, &isRO); + rc2 = winAccess(pVfs, zUtf8Name, SQLITE_ACCESS_READ, &isRO); sqlite3EndBenignMalloc(); if( rc2==SQLITE_OK && isRO ) break; } @@ -48355,6 +51715,13 @@ static int winAccess( OSTRACE(("ACCESS name=%s, flags=%x, pResOut=%p\n", zFilename, flags, pResOut)); + if( zFilename==0 ){ + *pResOut = 0; + OSTRACE(("ACCESS name=%s, pResOut=%p, *pResOut=%d, rc=SQLITE_OK\n", + zFilename, pResOut, *pResOut)); + return SQLITE_OK; + } + zConverted = winConvertFromUtf8Filename(zFilename); if( zConverted==0 ){ OSTRACE(("ACCESS name=%s, rc=SQLITE_IOERR_NOMEM\n", zFilename)); @@ -48476,7 +51843,7 @@ static BOOL winIsVerbatimPathname( ** pathname into zOut[]. zOut[] will be at least pVfs->mxPathname ** bytes in size. */ -static int winFullPathname( +static int winFullPathnameNoMutex( sqlite3_vfs *pVfs, /* Pointer to vfs object */ const char *zRelative, /* Possibly relative input path */ int nFull, /* Size of output buffer in bytes */ @@ -48655,6 +52022,20 @@ static int winFullPathname( } #endif } +static int winFullPathname( + sqlite3_vfs *pVfs, /* Pointer to vfs object */ + const char *zRelative, /* Possibly relative input path */ + int nFull, /* Size of output buffer in bytes */ + char *zFull /* Output buffer */ +){ + int rc; + MUTEX_LOGIC( sqlite3_mutex *pMutex; ) + MUTEX_LOGIC( pMutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR); ) + sqlite3_mutex_enter(pMutex); + rc = winFullPathnameNoMutex(pVfs, zRelative, nFull, zFull); + sqlite3_mutex_leave(pMutex); + return rc; +} #ifndef SQLITE_OMIT_LOAD_EXTENSION /* @@ -49191,6 +52572,7 @@ static int memdbTruncate(sqlite3_file*, sqlite3_int64 size); static int memdbSync(sqlite3_file*, int flags); static int memdbFileSize(sqlite3_file*, sqlite3_int64 *pSize); static int memdbLock(sqlite3_file*, int); +static int memdbUnlock(sqlite3_file*, int); /* static int memdbCheckReservedLock(sqlite3_file*, int *pResOut);// not used */ static int memdbFileControl(sqlite3_file*, int op, void *pArg); /* static int memdbSectorSize(sqlite3_file*); // not used */ @@ -49249,7 +52631,7 @@ static const sqlite3_io_methods memdb_io_methods = { memdbSync, /* xSync */ memdbFileSize, /* xFileSize */ memdbLock, /* xLock */ - memdbLock, /* xUnlock - same as xLock in this case */ + memdbUnlock, /* xUnlock */ 0, /* memdbCheckReservedLock, */ /* xCheckReservedLock */ memdbFileControl, /* xFileControl */ 0, /* memdbSectorSize,*/ /* xSectorSize */ @@ -49450,39 +52832,81 @@ static int memdbLock(sqlite3_file *pFile, int eLock){ MemFile *pThis = (MemFile*)pFile; MemStore *p = pThis->pStore; int rc = SQLITE_OK; - if( eLock==pThis->eLock ) return SQLITE_OK; + if( eLock<=pThis->eLock ) return SQLITE_OK; memdbEnter(p); - if( eLock>SQLITE_LOCK_SHARED ){ - if( p->mFlags & SQLITE_DESERIALIZE_READONLY ){ - rc = SQLITE_READONLY; - }else if( pThis->eLock<=SQLITE_LOCK_SHARED ){ - if( p->nWrLock ){ - rc = SQLITE_BUSY; - }else{ - p->nWrLock = 1; + + assert( p->nWrLock==0 || p->nWrLock==1 ); + assert( pThis->eLock<=SQLITE_LOCK_SHARED || p->nWrLock==1 ); + assert( pThis->eLock==SQLITE_LOCK_NONE || p->nRdLock>=1 ); + + if( eLock>SQLITE_LOCK_SHARED && (p->mFlags & SQLITE_DESERIALIZE_READONLY) ){ + rc = SQLITE_READONLY; + }else{ + switch( eLock ){ + case SQLITE_LOCK_SHARED: { + assert( pThis->eLock==SQLITE_LOCK_NONE ); + if( p->nWrLock>0 ){ + rc = SQLITE_BUSY; + }else{ + p->nRdLock++; + } + break; + }; + + case SQLITE_LOCK_RESERVED: + case SQLITE_LOCK_PENDING: { + assert( pThis->eLock>=SQLITE_LOCK_SHARED ); + if( ALWAYS(pThis->eLock==SQLITE_LOCK_SHARED) ){ + if( p->nWrLock>0 ){ + rc = SQLITE_BUSY; + }else{ + p->nWrLock = 1; + } + } + break; + } + + default: { + assert( eLock==SQLITE_LOCK_EXCLUSIVE ); + assert( pThis->eLock>=SQLITE_LOCK_SHARED ); + if( p->nRdLock>1 ){ + rc = SQLITE_BUSY; + }else if( pThis->eLock==SQLITE_LOCK_SHARED ){ + p->nWrLock = 1; + } + break; } } - }else if( eLock==SQLITE_LOCK_SHARED ){ - if( pThis->eLock > SQLITE_LOCK_SHARED ){ - assert( p->nWrLock==1 ); - p->nWrLock = 0; - }else if( p->nWrLock ){ - rc = SQLITE_BUSY; - }else{ - p->nRdLock++; + } + if( rc==SQLITE_OK ) pThis->eLock = eLock; + memdbLeave(p); + return rc; +} + +/* +** Unlock an memdb-file. +*/ +static int memdbUnlock(sqlite3_file *pFile, int eLock){ + MemFile *pThis = (MemFile*)pFile; + MemStore *p = pThis->pStore; + if( eLock>=pThis->eLock ) return SQLITE_OK; + memdbEnter(p); + + assert( eLock==SQLITE_LOCK_SHARED || eLock==SQLITE_LOCK_NONE ); + if( eLock==SQLITE_LOCK_SHARED ){ + if( ALWAYS(pThis->eLock>SQLITE_LOCK_SHARED) ){ + p->nWrLock--; } }else{ - assert( eLock==SQLITE_LOCK_NONE ); if( pThis->eLock>SQLITE_LOCK_SHARED ){ - assert( p->nWrLock==1 ); - p->nWrLock = 0; + p->nWrLock--; } - assert( p->nRdLock>0 ); p->nRdLock--; } - if( rc==SQLITE_OK ) pThis->eLock = eLock; + + pThis->eLock = eLock; memdbLeave(p); - return rc; + return SQLITE_OK; } #if 0 @@ -49592,7 +53016,7 @@ static int memdbOpen( memset(pFile, 0, sizeof(*pFile)); szName = sqlite3Strlen30(zName); - if( szName>1 && zName[0]=='/' ){ + if( szName>1 && (zName[0]=='/' || zName[0]=='\\') ){ int i; #ifndef SQLITE_MUTEX_OMIT sqlite3_mutex *pVfsMutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_VFS1); @@ -49940,6 +53364,13 @@ end_deserialize: } /* +** Return true if the VFS is the memvfs. +*/ +SQLITE_PRIVATE int sqlite3IsMemdb(const sqlite3_vfs *pVfs){ + return pVfs==&memdb_vfs; +} + +/* ** This routine is called when the extension is loaded. ** Register the new VFS. */ @@ -50151,7 +53582,7 @@ SQLITE_PRIVATE int sqlite3BitvecSet(Bitvec *p, u32 i){ h = BITVEC_HASH(i++); /* if there wasn't a hash collision, and this doesn't */ /* completely fill the hash, then just add it without */ - /* worring about sub-dividing and re-hashing. */ + /* worrying about sub-dividing and re-hashing. */ if( !p->u.aHash[h] ){ if (p->nSet<(BITVEC_NINT-1)) { goto bitvec_set_end; @@ -50418,7 +53849,7 @@ bitvec_end: struct PCache { PgHdr *pDirty, *pDirtyTail; /* List of dirty pages in LRU order */ PgHdr *pSynced; /* Last synced page in dirty page list */ - int nRefSum; /* Sum of ref counts over all pages */ + i64 nRefSum; /* Sum of ref counts over all pages */ int szCache; /* Configured cache size */ int szSpill; /* Size before spilling occurs */ int szPage; /* Size of every page in this cache */ @@ -50443,12 +53874,24 @@ struct PCache { int sqlite3PcacheTrace = 2; /* 0: off 1: simple 2: cache dumps */ int sqlite3PcacheMxDump = 9999; /* Max cache entries for pcacheDump() */ # define pcacheTrace(X) if(sqlite3PcacheTrace){sqlite3DebugPrintf X;} - void pcacheDump(PCache *pCache){ - int N; - int i, j; - sqlite3_pcache_page *pLower; + static void pcachePageTrace(int i, sqlite3_pcache_page *pLower){ PgHdr *pPg; unsigned char *a; + int j; + if( pLower==0 ){ + printf("%3d: NULL\n", i); + }else{ + pPg = (PgHdr*)pLower->pExtra; + printf("%3d: nRef %2lld flgs %02x data ", i, pPg->nRef, pPg->flags); + a = (unsigned char *)pLower->pBuf; + for(j=0; j<12; j++) printf("%02x", a[j]); + printf(" ptr %p\n", pPg); + } + } + static void pcacheDump(PCache *pCache){ + int N; + int i; + sqlite3_pcache_page *pLower; if( sqlite3PcacheTrace<2 ) return; if( pCache->pCache==0 ) return; @@ -50456,23 +53899,43 @@ struct PCache { if( N>sqlite3PcacheMxDump ) N = sqlite3PcacheMxDump; for(i=1; i<=N; i++){ pLower = sqlite3GlobalConfig.pcache2.xFetch(pCache->pCache, i, 0); - if( pLower==0 ) continue; - pPg = (PgHdr*)pLower->pExtra; - printf("%3d: nRef %2d flgs %02x data ", i, pPg->nRef, pPg->flags); - a = (unsigned char *)pLower->pBuf; - for(j=0; j<12; j++) printf("%02x", a[j]); - printf("\n"); - if( pPg->pPage==0 ){ + pcachePageTrace(i, pLower); + if( pLower && ((PgHdr*)pLower)->pPage==0 ){ sqlite3GlobalConfig.pcache2.xUnpin(pCache->pCache, pLower, 0); } } } - #else +#else # define pcacheTrace(X) +# define pcachePageTrace(PGNO, X) # define pcacheDump(X) #endif /* +** Return 1 if pPg is on the dirty list for pCache. Return 0 if not. +** This routine runs inside of assert() statements only. +*/ +#if defined(SQLITE_ENABLE_EXPENSIVE_ASSERT) +static int pageOnDirtyList(PCache *pCache, PgHdr *pPg){ + PgHdr *p; + for(p=pCache->pDirty; p; p=p->pDirtyNext){ + if( p==pPg ) return 1; + } + return 0; +} +static int pageNotOnDirtyList(PCache *pCache, PgHdr *pPg){ + PgHdr *p; + for(p=pCache->pDirty; p; p=p->pDirtyNext){ + if( p==pPg ) return 0; + } + return 1; +} +#else +# define pageOnDirtyList(A,B) 1 +# define pageNotOnDirtyList(A,B) 1 +#endif + +/* ** Check invariants on a PgHdr entry. Return true if everything is OK. ** Return false if any invariant is violated. ** @@ -50490,8 +53953,13 @@ SQLITE_PRIVATE int sqlite3PcachePageSanity(PgHdr *pPg){ assert( pCache!=0 ); /* Every page has an associated PCache */ if( pPg->flags & PGHDR_CLEAN ){ assert( (pPg->flags & PGHDR_DIRTY)==0 );/* Cannot be both CLEAN and DIRTY */ - assert( pCache->pDirty!=pPg ); /* CLEAN pages not on dirty list */ - assert( pCache->pDirtyTail!=pPg ); + assert( pageNotOnDirtyList(pCache, pPg) );/* CLEAN pages not on dirtylist */ + }else{ + assert( (pPg->flags & PGHDR_DIRTY)!=0 );/* If not CLEAN must be DIRTY */ + assert( pPg->pDirtyNext==0 || pPg->pDirtyNext->pDirtyPrev==pPg ); + assert( pPg->pDirtyPrev==0 || pPg->pDirtyPrev->pDirtyNext==pPg ); + assert( pPg->pDirtyPrev!=0 || pCache->pDirty==pPg ); + assert( pageOnDirtyList(pCache, pPg) ); } /* WRITEABLE pages must also be DIRTY */ if( pPg->flags & PGHDR_WRITEABLE ){ @@ -50621,7 +54089,7 @@ static int numberOfCachePages(PCache *p){ return p->szCache; }else{ i64 n; - /* IMPLEMANTATION-OF: R-59858-46238 If the argument N is negative, then the + /* IMPLEMENTATION-OF: R-59858-46238 If the argument N is negative, then the ** number of cache pages is adjusted to be a number of pages that would ** use approximately abs(N*1024) bytes of memory based on the current ** page size. */ @@ -50765,8 +54233,9 @@ SQLITE_PRIVATE sqlite3_pcache_page *sqlite3PcacheFetch( assert( createFlag==0 || pCache->eCreate==eCreate ); assert( createFlag==0 || eCreate==1+(!pCache->bPurgeable||!pCache->pDirty) ); pRes = sqlite3GlobalConfig.pcache2.xFetch(pCache->pCache, pgno, eCreate); - pcacheTrace(("%p.FETCH %d%s (result: %p)\n",pCache,pgno, + pcacheTrace(("%p.FETCH %d%s (result: %p) ",pCache,pgno, createFlag?" create":"",pRes)); + pcachePageTrace(pgno, pRes); return pRes; } @@ -50894,6 +54363,7 @@ SQLITE_PRIVATE void SQLITE_NOINLINE sqlite3PcacheRelease(PgHdr *p){ pcacheUnpin(p); }else{ pcacheManageDirtyList(p, PCACHE_DIRTYLIST_FRONT); + assert( sqlite3PcachePageSanity(p) ); } } } @@ -50928,8 +54398,7 @@ SQLITE_PRIVATE void sqlite3PcacheDrop(PgHdr *p){ ** make it so. */ SQLITE_PRIVATE void sqlite3PcacheMakeDirty(PgHdr *p){ - assert( p->nRef>0 || p->pCache->bPurgeable==0 ); - testcase( p->nRef==0 ); + assert( p->nRef>0 ); assert( sqlite3PcachePageSanity(p) ); if( p->flags & (PGHDR_CLEAN|PGHDR_DONT_WRITE) ){ /*OPTIMIZATION-IF-FALSE*/ p->flags &= ~PGHDR_DONT_WRITE; @@ -50938,6 +54407,7 @@ SQLITE_PRIVATE void sqlite3PcacheMakeDirty(PgHdr *p){ pcacheTrace(("%p.DIRTY %d\n",p->pCache,p->pgno)); assert( (p->flags & (PGHDR_DIRTY|PGHDR_CLEAN))==PGHDR_DIRTY ); pcacheManageDirtyList(p, PCACHE_DIRTYLIST_ADD); + assert( sqlite3PcachePageSanity(p) ); } assert( sqlite3PcachePageSanity(p) ); } @@ -51000,14 +54470,24 @@ SQLITE_PRIVATE void sqlite3PcacheClearSyncFlags(PCache *pCache){ */ SQLITE_PRIVATE void sqlite3PcacheMove(PgHdr *p, Pgno newPgno){ PCache *pCache = p->pCache; + sqlite3_pcache_page *pOther; assert( p->nRef>0 ); assert( newPgno>0 ); assert( sqlite3PcachePageSanity(p) ); pcacheTrace(("%p.MOVE %d -> %d\n",pCache,p->pgno,newPgno)); + pOther = sqlite3GlobalConfig.pcache2.xFetch(pCache->pCache, newPgno, 0); + if( pOther ){ + PgHdr *pXPage = (PgHdr*)pOther->pExtra; + assert( pXPage->nRef==0 ); + pXPage->nRef++; + pCache->nRefSum++; + sqlite3PcacheDrop(pXPage); + } sqlite3GlobalConfig.pcache2.xRekey(pCache->pCache, p->pPage, p->pgno,newPgno); p->pgno = newPgno; if( (p->flags&PGHDR_DIRTY) && (p->flags&PGHDR_NEED_SYNC) ){ pcacheManageDirtyList(p, PCACHE_DIRTYLIST_FRONT); + assert( sqlite3PcachePageSanity(p) ); } } @@ -51097,7 +54577,7 @@ static PgHdr *pcacheMergeDirtyList(PgHdr *pA, PgHdr *pB){ } /* -** Sort the list of pages in accending order by pgno. Pages are +** Sort the list of pages in ascending order by pgno. Pages are ** connected by pDirty pointers. The pDirtyPrev pointers are ** corrupted by this sort. ** @@ -51156,14 +54636,14 @@ SQLITE_PRIVATE PgHdr *sqlite3PcacheDirtyList(PCache *pCache){ ** This is not the total number of pages referenced, but the sum of the ** reference count for all pages. */ -SQLITE_PRIVATE int sqlite3PcacheRefCount(PCache *pCache){ +SQLITE_PRIVATE i64 sqlite3PcacheRefCount(PCache *pCache){ return pCache->nRefSum; } /* ** Return the number of references to the page supplied as an argument. */ -SQLITE_PRIVATE int sqlite3PcachePageRefcount(PgHdr *p){ +SQLITE_PRIVATE i64 sqlite3PcachePageRefcount(PgHdr *p){ return p->nRef; } @@ -51305,12 +54785,13 @@ SQLITE_PRIVATE void sqlite3PcacheIterateDirty(PCache *pCache, void (*xIter)(PgHd ** size can vary according to architecture, compile-time options, and ** SQLite library version number. ** -** If SQLITE_PCACHE_SEPARATE_HEADER is defined, then the extension is obtained -** using a separate memory allocation from the database page content. This -** seeks to overcome the "clownshoe" problem (also called "internal -** fragmentation" in academic literature) of allocating a few bytes more -** than a power of two with the memory allocator rounding up to the next -** power of two, and leaving the rounded-up space unused. +** Historical note: It used to be that if the SQLITE_PCACHE_SEPARATE_HEADER +** was defined, then the page content would be held in a separate memory +** allocation from the PgHdr1. This was intended to avoid clownshoe memory +** allocations. However, the btree layer needs a small (16-byte) overrun +** area after the page content buffer. The header serves as that overrun +** area. Therefore SQLITE_PCACHE_SEPARATE_HEADER was discontinued to avoid +** any possibility of a memory error. ** ** This module tracks pointers to PgHdr1 objects. Only pcache.c communicates ** with this module. Information is passed back and forth as PgHdr1 pointers. @@ -51336,7 +54817,7 @@ SQLITE_PRIVATE void sqlite3PcacheIterateDirty(PCache *pCache, void (*xIter)(PgHd ** If N is positive, then N pages worth of memory are allocated using a single ** sqlite3Malloc() call and that memory is used for the first N pages allocated. ** Or if N is negative, then -1024*N bytes of memory are allocated and used -** for as many pages as can be accomodated. +** for as many pages as can be accommodated. ** ** Only one of (2) or (3) can be used. Once the memory available to (2) or ** (3) is exhausted, subsequent allocations fail over to the general-purpose @@ -51355,30 +54836,40 @@ typedef struct PGroup PGroup; /* ** Each cache entry is represented by an instance of the following -** structure. Unless SQLITE_PCACHE_SEPARATE_HEADER is defined, a buffer of -** PgHdr1.pCache->szPage bytes is allocated directly before this structure -** in memory. +** structure. A buffer of PgHdr1.pCache->szPage bytes is allocated +** directly before this structure and is used to cache the page content. ** -** Note: Variables isBulkLocal and isAnchor were once type "u8". That works, +** When reading a corrupt database file, it is possible that SQLite might +** read a few bytes (no more than 16 bytes) past the end of the page buffer. +** It will only read past the end of the page buffer, never write. This +** object is positioned immediately after the page buffer to serve as an +** overrun area, so that overreads are harmless. +** +** Variables isBulkLocal and isAnchor were once type "u8". That works, ** but causes a 2-byte gap in the structure for most architectures (since ** pointers must be either 4 or 8-byte aligned). As this structure is located ** in memory directly after the associated page data, if the database is ** corrupt, code at the b-tree layer may overread the page buffer and ** read part of this structure before the corruption is detected. This -** can cause a valgrind error if the unitialized gap is accessed. Using u16 -** ensures there is no such gap, and therefore no bytes of unitialized memory -** in the structure. +** can cause a valgrind error if the uninitialized gap is accessed. Using u16 +** ensures there is no such gap, and therefore no bytes of uninitialized +** memory in the structure. +** +** The pLruNext and pLruPrev pointers form a double-linked circular list +** of all pages that are unpinned. The PGroup.lru element (which should be +** the only element on the list with PgHdr1.isAnchor set to 1) forms the +** beginning and the end of the list. */ struct PgHdr1 { - sqlite3_pcache_page page; /* Base class. Must be first. pBuf & pExtra */ - unsigned int iKey; /* Key value (page number) */ - u16 isBulkLocal; /* This page from bulk local storage */ - u16 isAnchor; /* This is the PGroup.lru element */ - PgHdr1 *pNext; /* Next in hash table chain */ - PCache1 *pCache; /* Cache that currently owns this page */ - PgHdr1 *pLruNext; /* Next in LRU list of unpinned pages */ - PgHdr1 *pLruPrev; /* Previous in LRU list of unpinned pages */ - /* NB: pLruPrev is only valid if pLruNext!=0 */ + sqlite3_pcache_page page; /* Base class. Must be first. pBuf & pExtra */ + unsigned int iKey; /* Key value (page number) */ + u16 isBulkLocal; /* This page from bulk local storage */ + u16 isAnchor; /* This is the PGroup.lru element */ + PgHdr1 *pNext; /* Next in hash table chain */ + PCache1 *pCache; /* Cache that currently owns this page */ + PgHdr1 *pLruNext; /* Next in circular LRU list of unpinned pages */ + PgHdr1 *pLruPrev; /* Previous in LRU list of unpinned pages */ + /* NB: pLruPrev is only valid if pLruNext!=0 */ }; /* @@ -51704,25 +55195,13 @@ static PgHdr1 *pcache1AllocPage(PCache1 *pCache, int benignMalloc){ pcache1LeaveMutex(pCache->pGroup); #endif if( benignMalloc ){ sqlite3BeginBenignMalloc(); } -#ifdef SQLITE_PCACHE_SEPARATE_HEADER - pPg = pcache1Alloc(pCache->szPage); - p = sqlite3Malloc(sizeof(PgHdr1) + pCache->szExtra); - if( !pPg || !p ){ - pcache1Free(pPg); - sqlite3_free(p); - pPg = 0; - } -#else pPg = pcache1Alloc(pCache->szAlloc); -#endif if( benignMalloc ){ sqlite3EndBenignMalloc(); } #ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT pcache1EnterMutex(pCache->pGroup); #endif if( pPg==0 ) return 0; -#ifndef SQLITE_PCACHE_SEPARATE_HEADER p = (PgHdr1 *)&((u8 *)pPg)[pCache->szPage]; -#endif p->page.pBuf = pPg; p->page.pExtra = &p[1]; p->isBulkLocal = 0; @@ -51746,9 +55225,6 @@ static void pcache1FreePage(PgHdr1 *p){ pCache->pFree = p; }else{ pcache1Free(p->page.pBuf); -#ifdef SQLITE_PCACHE_SEPARATE_HEADER - sqlite3_free(p); -#endif } (*pCache->pnPurgeable)--; } @@ -52389,23 +55865,26 @@ static void pcache1Rekey( PCache1 *pCache = (PCache1 *)p; PgHdr1 *pPage = (PgHdr1 *)pPg; PgHdr1 **pp; - unsigned int h; + unsigned int hOld, hNew; assert( pPage->iKey==iOld ); assert( pPage->pCache==pCache ); + assert( iOld!=iNew ); /* The page number really is changing */ pcache1EnterMutex(pCache->pGroup); - h = iOld%pCache->nHash; - pp = &pCache->apHash[h]; + assert( pcache1FetchNoMutex(p, iOld, 0)==pPage ); /* pPg really is iOld */ + hOld = iOld%pCache->nHash; + pp = &pCache->apHash[hOld]; while( (*pp)!=pPage ){ pp = &(*pp)->pNext; } *pp = pPage->pNext; - h = iNew%pCache->nHash; + assert( pcache1FetchNoMutex(p, iNew, 0)==0 ); /* iNew not in cache */ + hNew = iNew%pCache->nHash; pPage->iKey = iNew; - pPage->pNext = pCache->apHash[h]; - pCache->apHash[h] = pPage; + pPage->pNext = pCache->apHash[hNew]; + pCache->apHash[hNew] = pPage; if( iNew>pCache->iMaxKey ){ pCache->iMaxKey = iNew; } @@ -52512,9 +55991,6 @@ SQLITE_PRIVATE int sqlite3PcacheReleaseMemory(int nReq){ && p->isAnchor==0 ){ nFree += pcache1MemSize(p->page.pBuf); -#ifdef SQLITE_PCACHE_SEPARATE_HEADER - nFree += sqlite3MemSize(p); -#endif assert( PAGE_IS_UNPINNED(p) ); pcache1PinPage(p); pcache1RemoveFromHash(p, 1); @@ -52595,7 +56071,7 @@ SQLITE_PRIVATE void sqlite3PcacheStats( ** The TEST primitive includes a "batch" number. The TEST primitive ** will only see elements that were inserted before the last change ** in the batch number. In other words, if an INSERT occurs between -** two TESTs where the TESTs have the same batch nubmer, then the +** two TESTs where the TESTs have the same batch number, then the ** value added by the INSERT will not be visible to the second TEST. ** The initial batch number is zero, so if the very first TEST contains ** a non-zero batch number, it will see all prior INSERTs. @@ -53127,6 +56603,7 @@ SQLITE_PRIVATE int sqlite3RowSetTest(RowSet *pRowSet, int iBatch, sqlite3_int64 # define sqlite3WalFramesize(z) 0 # define sqlite3WalFindFrame(x,y,z) 0 # define sqlite3WalFile(x) 0 +# undef SQLITE_USE_SEH #else #define WAL_SAVEPOINT_NDATA 4 @@ -53233,6 +56710,10 @@ SQLITE_PRIVATE int sqlite3WalWriteLock(Wal *pWal, int bLock); SQLITE_PRIVATE void sqlite3WalDb(Wal *pWal, sqlite3 *db); #endif +#ifdef SQLITE_USE_SEH +SQLITE_PRIVATE int sqlite3WalSystemErrno(Wal*); +#endif + #endif /* ifndef SQLITE_OMIT_WAL */ #endif /* SQLITE_WAL_H */ @@ -53518,7 +56999,7 @@ int sqlite3PagerTrace=1; /* True to enable tracing */ ** outstanding transactions have been abandoned, the pager is able to ** transition back to OPEN state, discarding the contents of the ** page-cache and any other in-memory state at the same time. Everything -** is reloaded from disk (and, if necessary, hot-journal rollback peformed) +** is reloaded from disk (and, if necessary, hot-journal rollback performed) ** when a read-transaction is next opened on the pager (transitioning ** the pager into READER state). At that point the system has recovered ** from the error. @@ -53898,13 +57379,14 @@ struct Pager { u32 vfsFlags; /* Flags for sqlite3_vfs.xOpen() */ u32 sectorSize; /* Assumed sector size during rollback */ Pgno mxPgno; /* Maximum allowed size of the database */ + Pgno lckPgno; /* Page number for the locking page */ i64 pageSize; /* Number of bytes in a page */ i64 journalSizeLimit; /* Size limit for persistent journal files */ char *zFilename; /* Name of the database file */ char *zJournal; /* Name of the journal file */ int (*xBusyHandler)(void*); /* Function to call when busy */ void *pBusyHandlerArg; /* Context argument for xBusyHandler */ - int aStat[4]; /* Total cache hits, misses, writes, spills */ + u32 aStat[4]; /* Total cache hits, misses, writes, spills */ #ifdef SQLITE_TEST int nRead; /* Database pages read */ #endif @@ -54034,9 +57516,8 @@ SQLITE_PRIVATE int sqlite3PagerDirectReadOk(Pager *pPager, Pgno pgno){ #ifndef SQLITE_OMIT_WAL if( pPager->pWal ){ u32 iRead = 0; - int rc; - rc = sqlite3WalFindFrame(pPager->pWal, pgno, &iRead); - return (rc==SQLITE_OK && iRead==0); + (void)sqlite3WalFindFrame(pPager->pWal, pgno, &iRead); + return iRead==0; } #endif return 1; @@ -54708,9 +58189,32 @@ static int writeJournalHdr(Pager *pPager){ memset(zHeader, 0, sizeof(aJournalMagic)+4); } + + /* The random check-hash initializer */ - sqlite3_randomness(sizeof(pPager->cksumInit), &pPager->cksumInit); + if( pPager->journalMode!=PAGER_JOURNALMODE_MEMORY ){ + sqlite3_randomness(sizeof(pPager->cksumInit), &pPager->cksumInit); + } +#ifdef SQLITE_DEBUG + else{ + /* The Pager.cksumInit variable is usually randomized above to protect + ** against there being existing records in the journal file. This is + ** dangerous, as following a crash they may be mistaken for records + ** written by the current transaction and rolled back into the database + ** file, causing corruption. The following assert statements verify + ** that this is not required in "journal_mode=memory" mode, as in that + ** case the journal file is always 0 bytes in size at this point. + ** It is advantageous to avoid the sqlite3_randomness() call if possible + ** as it takes the global PRNG mutex. */ + i64 sz = 0; + sqlite3OsFileSize(pPager->jfd, &sz); + assert( sz==0 ); + assert( pPager->journalOff==journalHdrOffset(pPager) ); + assert( sqlite3JournalIsInMemory(pPager->jfd) ); + } +#endif put32bits(&zHeader[sizeof(aJournalMagic)+4], pPager->cksumInit); + /* The initial database size */ put32bits(&zHeader[sizeof(aJournalMagic)+8], pPager->dbOrigSize); /* The assumed sector size for this process */ @@ -54884,13 +58388,13 @@ static int readJournalHdr( ** journal file descriptor is advanced to the next sector boundary before ** anything is written. The format is: ** -** + 4 bytes: PAGER_MJ_PGNO. +** + 4 bytes: PAGER_SJ_PGNO. ** + N bytes: super-journal filename in utf-8. ** + 4 bytes: N (length of super-journal name in bytes, no nul-terminator). ** + 4 bytes: super-journal name checksum. ** + 8 bytes: aJournalMagic[]. ** -** The super-journal page checksum is the sum of the bytes in thesuper-journal +** The super-journal page checksum is the sum of the bytes in the super-journal ** name, where each byte is interpreted as a signed 8-bit integer. ** ** If zSuper is a NULL pointer (occurs for a single database transaction), @@ -54932,7 +58436,7 @@ static int writeSuperJournal(Pager *pPager, const char *zSuper){ /* Write the super-journal data to the end of the journal file. If ** an error occurs, return the error code to the caller. */ - if( (0 != (rc = write32bits(pPager->jfd, iHdrOff, PAGER_MJ_PGNO(pPager)))) + if( (0 != (rc = write32bits(pPager->jfd, iHdrOff, PAGER_SJ_PGNO(pPager)))) || (0 != (rc = sqlite3OsWrite(pPager->jfd, zSuper, nSuper, iHdrOff+4))) || (0 != (rc = write32bits(pPager->jfd, iHdrOff+4+nSuper, nSuper))) || (0 != (rc = write32bits(pPager->jfd, iHdrOff+4+nSuper+4, cksum))) @@ -54943,7 +58447,7 @@ static int writeSuperJournal(Pager *pPager, const char *zSuper){ } pPager->journalOff += (nSuper+20); - /* If the pager is in peristent-journal mode, then the physical + /* If the pager is in persistent-journal mode, then the physical ** journal-file may extend past the end of the super-journal name ** and 8 bytes of magic data just written to the file. This is ** dangerous because the code to rollback a hot-journal file @@ -55113,7 +58617,7 @@ static void pager_unlock(Pager *pPager){ /* ** This function is called whenever an IOERR or FULL error that requires -** the pager to transition into the ERROR state may ahve occurred. +** the pager to transition into the ERROR state may have occurred. ** The first argument is a pointer to the pager structure, the second ** the error-code about to be returned by a pager API function. The ** value returned is a copy of the second argument to this function. @@ -55354,6 +58858,9 @@ static int pager_end_transaction(Pager *pPager, int hasSuper, int bCommit){ return (rc==SQLITE_OK?rc2:rc); } +/* Forward reference */ +static int pager_playback(Pager *pPager, int isHot); + /* ** Execute a rollback if a transaction is active and unlock the ** database file. @@ -55382,13 +58889,28 @@ static void pagerUnlockAndRollback(Pager *pPager){ assert( pPager->eState==PAGER_READER ); pager_end_transaction(pPager, 0, 0); } + }else if( pPager->eState==PAGER_ERROR + && pPager->journalMode==PAGER_JOURNALMODE_MEMORY + && isOpen(pPager->jfd) + ){ + /* Special case for a ROLLBACK due to I/O error with an in-memory + ** journal: We have to rollback immediately, before the journal is + ** closed, because once it is closed, all content is forgotten. */ + int errCode = pPager->errCode; + u8 eLock = pPager->eLock; + pPager->eState = PAGER_OPEN; + pPager->errCode = SQLITE_OK; + pPager->eLock = EXCLUSIVE_LOCK; + pager_playback(pPager, 1); + pPager->errCode = errCode; + pPager->eLock = eLock; } pager_unlock(pPager); } /* ** Parameter aData must point to a buffer of pPager->pageSize bytes -** of data. Compute and return a checksum based ont the contents of the +** of data. Compute and return a checksum based on the contents of the ** page of data and the current value of pPager->cksumInit. ** ** This is not a real checksum. It is really just the sum of the @@ -55442,7 +58964,7 @@ static u32 pager_cksum(Pager *pPager, const u8 *aData){ ** corrupted, SQLITE_DONE is returned. Data is considered corrupted in ** two circumstances: ** -** * If the record page-number is illegal (0 or PAGER_MJ_PGNO), or +** * If the record page-number is illegal (0 or PAGER_SJ_PGNO), or ** * If the record is being rolled back from the main journal file ** and the checksum field does not match the record content. ** @@ -55502,7 +59024,7 @@ static int pager_playback_one_page( ** it could cause invalid data to be written into the journal. We need to ** detect this invalid data (with high probability) and ignore it. */ - if( pgno==0 || pgno==PAGER_MJ_PGNO(pPager) ){ + if( pgno==0 || pgno==PAGER_SJ_PGNO(pPager) ){ assert( !isSavepnt ); return SQLITE_DONE; } @@ -55821,6 +59343,8 @@ static int pager_truncate(Pager *pPager, Pgno nPage){ int rc = SQLITE_OK; assert( pPager->eState!=PAGER_ERROR ); assert( pPager->eState!=PAGER_READER ); + PAGERTRACE(("Truncate %d npage %u\n", PAGERID(pPager), nPage)); + if( isOpen(pPager->fd) && (pPager->eState>=PAGER_WRITER_DBMOD || pPager->eState==PAGER_OPEN) @@ -55839,6 +59363,7 @@ static int pager_truncate(Pager *pPager, Pgno nPage){ memset(pTmp, 0, szPage); testcase( (newSize-szPage) == currentSize ); testcase( (newSize-szPage) > currentSize ); + sqlite3OsFileControlHint(pPager->fd, SQLITE_FCNTL_SIZE_HINT, &newSize); rc = sqlite3OsWrite(pPager->fd, pTmp, szPage, newSize-szPage); } if( rc==SQLITE_OK ){ @@ -56150,7 +59675,7 @@ end_playback: ** see if it is possible to delete the super-journal. */ assert( zSuper==&pPager->pTmpSpace[4] ); - memset(&zSuper[-4], 0, 4); + memset(pPager->pTmpSpace, 0, 4); rc = pager_delsuper(pPager, zSuper); testcase( rc!=SQLITE_OK ); } @@ -56351,7 +59876,7 @@ static int pagerWalFrames( assert( pPager->pWal ); assert( pList ); #ifdef SQLITE_DEBUG - /* Verify that the page list is in accending order */ + /* Verify that the page list is in ascending order */ for(p=pList; p && p->pDirty; p=p->pDirty){ assert( p->pgno < p->pDirty->pgno ); } @@ -56482,7 +60007,7 @@ static int pagerPagecount(Pager *pPager, Pgno *pnPage){ #ifndef SQLITE_OMIT_WAL /* ** Check if the *-wal file that corresponds to the database opened by pPager -** exists if the database is not empy, or verify that the *-wal file does +** exists if the database is not empty, or verify that the *-wal file does ** not exist (by deleting it) if the database file is empty. ** ** If the database is not empty and the *-wal file exists, open the pager @@ -56771,7 +60296,6 @@ SQLITE_PRIVATE void sqlite3PagerShrink(Pager *pPager){ ** Numeric values associated with these states are OFF==1, NORMAL=2, ** and FULL=3. */ -#ifndef SQLITE_OMIT_PAGER_PRAGMAS SQLITE_PRIVATE void sqlite3PagerSetFlags( Pager *pPager, /* The pager to set safety level for */ unsigned pgFlags /* Various flags */ @@ -56806,7 +60330,6 @@ SQLITE_PRIVATE void sqlite3PagerSetFlags( pPager->doNotSpill |= SPILLFLAG_OFF; } } -#endif /* ** The following global variable is incremented whenever the library @@ -56960,6 +60483,7 @@ SQLITE_PRIVATE int sqlite3PagerSetPagesize(Pager *pPager, u32 *pPageSize, int nR pPager->pTmpSpace = pNew; pPager->dbSize = (Pgno)((nByte+pageSize-1)/pageSize); pPager->pageSize = pageSize; + pPager->lckPgno = (Pgno)(PENDING_BYTE/pageSize) + 1; }else{ sqlite3PageFree(pNew); } @@ -57893,11 +61417,7 @@ SQLITE_PRIVATE int sqlite3PagerOpen( int rc = SQLITE_OK; /* Return code */ int tempFile = 0; /* True for temp files (incl. in-memory files) */ int memDb = 0; /* True if this is an in-memory file */ -#ifndef SQLITE_OMIT_DESERIALIZE int memJM = 0; /* Memory journal mode */ -#else -# define memJM 0 -#endif int readOnly = 0; /* True if this is a read-only file */ int journalFileSize; /* Bytes to allocate for each journal fd */ char *zPathname = 0; /* Full path to database file */ @@ -57907,7 +61427,6 @@ SQLITE_PRIVATE int sqlite3PagerOpen( u32 szPageDflt = SQLITE_DEFAULT_PAGE_SIZE; /* Default page size */ const char *zUri = 0; /* URI args to copy */ int nUriByte = 1; /* Number of bytes of URI args at *zUri */ - int nUri = 0; /* Number of URI parameters */ /* Figure out how much space is required for each journal file-handle ** (there are two of them, the main journal and the sub-journal). */ @@ -57955,7 +61474,6 @@ SQLITE_PRIVATE int sqlite3PagerOpen( while( *z ){ z += strlen(z)+1; z += strlen(z)+1; - nUri++; } nUriByte = (int)(&z[1] - zUri); assert( nUriByte>=1 ); @@ -58018,12 +61536,13 @@ SQLITE_PRIVATE int sqlite3PagerOpen( ** specific formatting and order of the various filenames, so if the format ** changes here, be sure to change it there as well. */ + assert( SQLITE_PTRSIZE==sizeof(Pager*) ); pPtr = (u8 *)sqlite3MallocZero( ROUND8(sizeof(*pPager)) + /* Pager structure */ ROUND8(pcacheSize) + /* PCache object */ ROUND8(pVfs->szOsFile) + /* The main db file */ journalFileSize * 2 + /* The two journal files */ - sizeof(pPager) + /* Space to hold a pointer */ + SQLITE_PTRSIZE + /* Space to hold a pointer */ 4 + /* Database prefix */ nPathname + 1 + /* database filename */ nUriByte + /* query parameters */ @@ -58044,7 +61563,7 @@ SQLITE_PRIVATE int sqlite3PagerOpen( pPager->sjfd = (sqlite3_file*)pPtr; pPtr += journalFileSize; pPager->jfd = (sqlite3_file*)pPtr; pPtr += journalFileSize; assert( EIGHT_BYTE_ALIGNMENT(pPager->jfd) ); - memcpy(pPtr, &pPager, sizeof(pPager)); pPtr += sizeof(pPager); + memcpy(pPtr, &pPager, SQLITE_PTRSIZE); pPtr += SQLITE_PTRSIZE; /* Fill in the Pager.zFilename and pPager.zQueryParam fields */ pPtr += 4; /* Skip zero prefix */ @@ -58098,9 +61617,7 @@ SQLITE_PRIVATE int sqlite3PagerOpen( int fout = 0; /* VFS flags returned by xOpen() */ rc = sqlite3OsOpen(pVfs, pPager->zFilename, pPager->fd, vfsFlags, &fout); assert( !memDb ); -#ifndef SQLITE_OMIT_DESERIALIZE pPager->memVfs = memJM = (fout&SQLITE_OPEN_MEMORY)!=0; -#endif readOnly = (fout&SQLITE_OPEN_READONLY)!=0; /* If the file was successfully opened for read/write access, @@ -58211,18 +61728,7 @@ act_like_temp_file: pPager->memDb = (u8)memDb; pPager->readOnly = (u8)readOnly; assert( useJournal || pPager->tempFile ); - pPager->noSync = pPager->tempFile; - if( pPager->noSync ){ - assert( pPager->fullSync==0 ); - assert( pPager->extraSync==0 ); - assert( pPager->syncFlags==0 ); - assert( pPager->walSyncFlags==0 ); - }else{ - pPager->fullSync = 1; - pPager->extraSync = 0; - pPager->syncFlags = SQLITE_SYNC_NORMAL; - pPager->walSyncFlags = SQLITE_SYNC_NORMAL | (SQLITE_SYNC_NORMAL<<2); - } + sqlite3PagerSetFlags(pPager, (SQLITE_DEFAULT_SYNCHRONOUS+1)|PAGER_CACHESPILL); /* pPager->pFirst = 0; */ /* pPager->pFirstSynced = 0; */ /* pPager->pLast = 0; */ @@ -58248,15 +61754,18 @@ act_like_temp_file: /* ** Return the sqlite3_file for the main database given the name -** of the corresonding WAL or Journal name as passed into +** of the corresponding WAL or Journal name as passed into ** xOpen. */ SQLITE_API sqlite3_file *sqlite3_database_file_object(const char *zName){ Pager *pPager; + const char *p; while( zName[-1]!=0 || zName[-2]!=0 || zName[-3]!=0 || zName[-4]!=0 ){ zName--; } - pPager = *(Pager**)(zName - 4 - sizeof(Pager*)); + p = zName - 4 - sizeof(Pager*); + assert( EIGHT_BYTE_ALIGNMENT(p) ); + pPager = *(Pager**)p; return pPager->fd; } @@ -58729,7 +62238,7 @@ static int getPageNormal( if( pPg->pPager && !noContent ){ /* In this case the pcache already contains an initialized copy of ** the page. Return without further ado. */ - assert( pgno!=PAGER_MJ_PGNO(pPager) ); + assert( pgno!=PAGER_SJ_PGNO(pPager) ); pPager->aStat[PAGER_STAT_HIT]++; return SQLITE_OK; @@ -58740,7 +62249,7 @@ static int getPageNormal( ** (*) obsolete. Was: maximum page number is 2^31 ** (2) Never try to fetch the locking page */ - if( pgno==PAGER_MJ_PGNO(pPager) ){ + if( pgno==PAGER_SJ_PGNO(pPager) ){ rc = SQLITE_CORRUPT_BKPT; goto pager_acquire_err; } @@ -58751,6 +62260,10 @@ static int getPageNormal( if( !isOpen(pPager->fd) || pPager->dbSize<pgno || noContent ){ if( pgno>pPager->mxPgno ){ rc = SQLITE_FULL; + if( pgno<=pPager->dbSize ){ + sqlite3PcacheRelease(pPg); + pPg = 0; + } goto pager_acquire_err; } if( noContent ){ @@ -58886,8 +62399,20 @@ SQLITE_PRIVATE int sqlite3PagerGet( DbPage **ppPage, /* Write a pointer to the page here */ int flags /* PAGER_GET_XXX flags */ ){ - /* printf("PAGE %u\n", pgno); fflush(stdout); */ +#if 0 /* Trace page fetch by setting to 1 */ + int rc; + printf("PAGE %u\n", pgno); + fflush(stdout); + rc = pPager->xGet(pPager, pgno, ppPage, flags); + if( rc ){ + printf("PAGE %u failed with 0x%02x\n", pgno, rc); + fflush(stdout); + } + return rc; +#else + /* Normal, high-speed version of sqlite3PagerGet() */ return pPager->xGet(pPager, pgno, ppPage, flags); +#endif } /* @@ -58915,10 +62440,12 @@ SQLITE_PRIVATE DbPage *sqlite3PagerLookup(Pager *pPager, Pgno pgno){ /* ** Release a page reference. ** -** The sqlite3PagerUnref() and sqlite3PagerUnrefNotNull() may only be -** used if we know that the page being released is not the last page. +** The sqlite3PagerUnref() and sqlite3PagerUnrefNotNull() may only be used +** if we know that the page being released is not the last reference to page1. ** The btree layer always holds page1 open until the end, so these first -** to routines can be used to release any page other than BtShared.pPage1. +** two routines can be used to release any page other than BtShared.pPage1. +** The assert() at tag-20230419-2 proves that this constraint is always +** honored. ** ** Use sqlite3PagerUnrefPageOne() to release page1. This latter routine ** checks the total number of outstanding pages and if the number of @@ -58934,7 +62461,7 @@ SQLITE_PRIVATE void sqlite3PagerUnrefNotNull(DbPage *pPg){ sqlite3PcacheRelease(pPg); } /* Do not use this routine to release the last reference to page1 */ - assert( sqlite3PcacheRefCount(pPager->pPCache)>0 ); + assert( sqlite3PcacheRefCount(pPager->pPCache)>0 ); /* tag-20230419-2 */ } SQLITE_PRIVATE void sqlite3PagerUnref(DbPage *pPg){ if( pPg ) sqlite3PagerUnrefNotNull(pPg); @@ -59000,6 +62527,7 @@ static int pager_open_journal(Pager *pPager){ if( pPager->tempFile ){ flags |= (SQLITE_OPEN_DELETEONCLOSE|SQLITE_OPEN_TEMP_JOURNAL); + flags |= SQLITE_OPEN_EXCLUSIVE; nSpill = sqlite3Config.nStmtSpill; }else{ flags |= SQLITE_OPEN_MAIN_JOURNAL; @@ -59035,6 +62563,7 @@ static int pager_open_journal(Pager *pPager){ if( rc!=SQLITE_OK ){ sqlite3BitvecDestroy(pPager->pInJournal); pPager->pInJournal = 0; + pPager->journalOff = 0; }else{ assert( pPager->eState==PAGER_WRITER_LOCKED ); pPager->eState = PAGER_WRITER_CACHEMOD; @@ -59139,7 +62668,7 @@ static SQLITE_NOINLINE int pagerAddPageToRollbackJournal(PgHdr *pPg){ /* We should never write to the journal file the page that ** contains the database locks. The following assert verifies ** that we do not. */ - assert( pPg->pgno!=PAGER_MJ_PGNO(pPager) ); + assert( pPg->pgno!=PAGER_SJ_PGNO(pPager) ); assert( pPager->journalHdr<=pPager->journalOff ); pData2 = pPg->pData; @@ -59318,7 +62847,7 @@ static SQLITE_NOINLINE int pagerWriteLargeSector(PgHdr *pPg){ Pgno pg = pg1+ii; PgHdr *pPage; if( pg==pPg->pgno || !sqlite3BitvecTest(pPager->pInJournal, pg) ){ - if( pg!=PAGER_MJ_PGNO(pPager) ){ + if( pg!=PAGER_SJ_PGNO(pPager) ){ rc = sqlite3PagerGet(pPager, pg, &pPage, 0); if( rc==SQLITE_OK ){ rc = pager_write(pPage); @@ -59481,7 +63010,7 @@ static int pager_incr_changecounter(Pager *pPager, int isDirectMode){ # define DIRECT_MODE isDirectMode #endif - if( !pPager->changeCountDone && ALWAYS(pPager->dbSize>0) ){ + if( !pPager->changeCountDone && pPager->dbSize>0 ){ PgHdr *pPgHdr; /* Reference to page 1 */ assert( !pPager->tempFile && isOpen(pPager->fd) ); @@ -59759,6 +63288,13 @@ SQLITE_PRIVATE int sqlite3PagerCommitPhaseOne( rc = sqlite3OsFileControl(fd, SQLITE_FCNTL_BEGIN_ATOMIC_WRITE, 0); if( rc==SQLITE_OK ){ rc = pager_write_pagelist(pPager, pList); + if( rc==SQLITE_OK && pPager->dbSize>pPager->dbFileSize ){ + char *pTmp = pPager->pTmpSpace; + int szPage = (int)pPager->pageSize; + memset(pTmp, 0, szPage); + rc = sqlite3OsWrite(pPager->fd, pTmp, szPage, + ((i64)pPager->dbSize*pPager->pageSize)-szPage); + } if( rc==SQLITE_OK ){ rc = sqlite3OsFileControl(fd, SQLITE_FCNTL_COMMIT_ATOMIC_WRITE, 0); } @@ -59796,7 +63332,7 @@ SQLITE_PRIVATE int sqlite3PagerCommitPhaseOne( ** last page is never written out to disk, leaving the database file ** undersized. Fix this now if it is the case. */ if( pPager->dbSize>pPager->dbFileSize ){ - Pgno nNew = pPager->dbSize - (pPager->dbSize==PAGER_MJ_PGNO(pPager)); + Pgno nNew = pPager->dbSize - (pPager->dbSize==PAGER_SJ_PGNO(pPager)); assert( pPager->eState==PAGER_WRITER_DBMOD ); rc = pager_truncate(pPager, nNew); if( rc!=SQLITE_OK ) goto commit_phase_one_exit; @@ -59993,11 +63529,11 @@ SQLITE_PRIVATE int *sqlite3PagerStats(Pager *pPager){ a[3] = pPager->eState==PAGER_OPEN ? -1 : (int) pPager->dbSize; a[4] = pPager->eState; a[5] = pPager->errCode; - a[6] = pPager->aStat[PAGER_STAT_HIT]; - a[7] = pPager->aStat[PAGER_STAT_MISS]; + a[6] = (int)pPager->aStat[PAGER_STAT_HIT] & 0x7fffffff; + a[7] = (int)pPager->aStat[PAGER_STAT_MISS] & 0x7fffffff; a[8] = 0; /* Used to be pPager->nOvfl */ a[9] = pPager->nRead; - a[10] = pPager->aStat[PAGER_STAT_WRITE]; + a[10] = (int)pPager->aStat[PAGER_STAT_WRITE] & 0x7fffffff; return a; } #endif @@ -60013,7 +63549,7 @@ SQLITE_PRIVATE int *sqlite3PagerStats(Pager *pPager){ ** reset parameter is non-zero, the cache hit or miss count is zeroed before ** returning. */ -SQLITE_PRIVATE void sqlite3PagerCacheStat(Pager *pPager, int eStat, int reset, int *pnVal){ +SQLITE_PRIVATE void sqlite3PagerCacheStat(Pager *pPager, int eStat, int reset, u64 *pnVal){ assert( eStat==SQLITE_DBSTATUS_CACHE_HIT || eStat==SQLITE_DBSTATUS_CACHE_MISS @@ -60221,7 +63757,11 @@ SQLITE_PRIVATE int sqlite3PagerSavepoint(Pager *pPager, int op, int iSavepoint){ */ SQLITE_PRIVATE const char *sqlite3PagerFilename(const Pager *pPager, int nullIfMemDb){ static const char zFake[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; - return (nullIfMemDb && pPager->memDb) ? &zFake[4] : pPager->zFilename; + if( nullIfMemDb && (pPager->memDb || sqlite3IsMemdb(pPager->pVfs)) ){ + return &zFake[4]; + }else{ + return pPager->zFilename; + } } /* @@ -60521,7 +64061,7 @@ SQLITE_PRIVATE int sqlite3PagerSetJournalMode(Pager *pPager, int eMode){ assert( pPager->eState!=PAGER_ERROR ); pPager->journalMode = (u8)eMode; - /* When transistioning from TRUNCATE or PERSIST to any other journal + /* When transitioning from TRUNCATE or PERSIST to any other journal ** mode except WAL, unless the pager is in locking_mode=exclusive mode, ** delete the journal file. */ @@ -60566,7 +64106,7 @@ SQLITE_PRIVATE int sqlite3PagerSetJournalMode(Pager *pPager, int eMode){ } assert( state==pPager->eState ); } - }else if( eMode==PAGER_JOURNALMODE_OFF ){ + }else if( eMode==PAGER_JOURNALMODE_OFF || eMode==PAGER_JOURNALMODE_MEMORY ){ sqlite3OsClose(pPager->jfd); } } @@ -60688,13 +64228,15 @@ SQLITE_PRIVATE int sqlite3PagerWalSupported(Pager *pPager){ */ static int pagerExclusiveLock(Pager *pPager){ int rc; /* Return code */ + u8 eOrigLock; /* Original lock */ - assert( pPager->eLock==SHARED_LOCK || pPager->eLock==EXCLUSIVE_LOCK ); + assert( pPager->eLock>=SHARED_LOCK ); + eOrigLock = pPager->eLock; rc = pagerLockDb(pPager, EXCLUSIVE_LOCK); if( rc!=SQLITE_OK ){ /* If the attempt to grab the exclusive lock failed, release the ** pending lock that may have been obtained instead. */ - pagerUnlockDb(pPager, SHARED_LOCK); + pagerUnlockDb(pPager, eOrigLock); } return rc; @@ -60947,6 +64489,12 @@ SQLITE_PRIVATE int sqlite3PagerWalFramesize(Pager *pPager){ } #endif +#if defined(SQLITE_USE_SEH) && !defined(SQLITE_OMIT_WAL) +SQLITE_PRIVATE int sqlite3PagerWalSystemErrno(Pager *pPager){ + return sqlite3WalSystemErrno(pPager->pWal); +} +#endif + #endif /* SQLITE_OMIT_DISKIO */ /************** End of pager.c ***********************************************/ @@ -61237,7 +64785,7 @@ SQLITE_PRIVATE int sqlite3WalTrace = 0; ** ** Technically, the various VFSes are free to implement these locks however ** they see fit. However, compatibility is encouraged so that VFSes can -** interoperate. The standard implemention used on both unix and windows +** interoperate. The standard implementation used on both unix and windows ** is for the index number to indicate a byte offset into the ** WalCkptInfo.aLock[] array in the wal-index header. In other words, all ** locks are on the shm file. The WALINDEX_LOCK_OFFSET constant (which @@ -61313,7 +64861,7 @@ struct WalIndexHdr { ** the mxFrame for that reader. The value READMARK_NOT_USED (0xffffffff) ** for any aReadMark[] means that entry is unused. aReadMark[0] is ** a special case; its value is never used and it exists as a place-holder -** to avoid having to offset aReadMark[] indexs by one. Readers holding +** to avoid having to offset aReadMark[] indexes by one. Readers holding ** WAL_READ_LOCK(0) always ignore the entire WAL and read all content ** directly from the database. ** @@ -61481,7 +65029,15 @@ struct Wal { u32 iReCksum; /* On commit, recalculate checksums from here */ const char *zWalName; /* Name of WAL file */ u32 nCkpt; /* Checkpoint sequence counter in the wal-header */ +#ifdef SQLITE_USE_SEH + u32 lockMask; /* Mask of locks held */ + void *pFree; /* Pointer to sqlite3_free() if exception thrown */ + u32 *pWiValue; /* Value to write into apWiData[iWiPg] */ + int iWiPg; /* Write pWiValue into apWiData[iWiPg] */ + int iSysErrno; /* System error code following exception */ +#endif #ifdef SQLITE_DEBUG + int nSehTry; /* Number of nested SEH_TRY{} blocks */ u8 lockError; /* True if a locking error has occurred */ #endif #ifdef SQLITE_ENABLE_SNAPSHOT @@ -61564,6 +65120,113 @@ struct WalIterator { ) /* +** Structured Exception Handling (SEH) is a Windows-specific technique +** for catching exceptions raised while accessing memory-mapped files. +** +** The -DSQLITE_USE_SEH compile-time option means to use SEH to catch and +** deal with system-level errors that arise during WAL -shm file processing. +** Without this compile-time option, any system-level faults that appear +** while accessing the memory-mapped -shm file will cause a process-wide +** signal to be deliver, which will more than likely cause the entire +** process to exit. +*/ +#ifdef SQLITE_USE_SEH +#include <Windows.h> + +/* Beginning of a block of code in which an exception might occur */ +# define SEH_TRY __try { \ + assert( walAssertLockmask(pWal) && pWal->nSehTry==0 ); \ + VVA_ONLY(pWal->nSehTry++); + +/* The end of a block of code in which an exception might occur */ +# define SEH_EXCEPT(X) \ + VVA_ONLY(pWal->nSehTry--); \ + assert( pWal->nSehTry==0 ); \ + } __except( sehExceptionFilter(pWal, GetExceptionCode(), GetExceptionInformation() ) ){ X } + +/* Simulate a memory-mapping fault in the -shm file for testing purposes */ +# define SEH_INJECT_FAULT sehInjectFault(pWal) + +/* +** The second argument is the return value of GetExceptionCode() for the +** current exception. Return EXCEPTION_EXECUTE_HANDLER if the exception code +** indicates that the exception may have been caused by accessing the *-shm +** file mapping. Or EXCEPTION_CONTINUE_SEARCH otherwise. +*/ +static int sehExceptionFilter(Wal *pWal, int eCode, EXCEPTION_POINTERS *p){ + VVA_ONLY(pWal->nSehTry--); + if( eCode==EXCEPTION_IN_PAGE_ERROR ){ + if( p && p->ExceptionRecord && p->ExceptionRecord->NumberParameters>=3 ){ + /* From MSDN: For this type of exception, the first element of the + ** ExceptionInformation[] array is a read-write flag - 0 if the exception + ** was thrown while reading, 1 if while writing. The second element is + ** the virtual address being accessed. The "third array element specifies + ** the underlying NTSTATUS code that resulted in the exception". */ + pWal->iSysErrno = (int)p->ExceptionRecord->ExceptionInformation[2]; + } + return EXCEPTION_EXECUTE_HANDLER; + } + return EXCEPTION_CONTINUE_SEARCH; +} + +/* +** If one is configured, invoke the xTestCallback callback with 650 as +** the argument. If it returns true, throw the same exception that is +** thrown by the system if the *-shm file mapping is accessed after it +** has been invalidated. +*/ +static void sehInjectFault(Wal *pWal){ + int res; + assert( pWal->nSehTry>0 ); + + res = sqlite3FaultSim(650); + if( res!=0 ){ + ULONG_PTR aArg[3]; + aArg[0] = 0; + aArg[1] = 0; + aArg[2] = (ULONG_PTR)res; + RaiseException(EXCEPTION_IN_PAGE_ERROR, 0, 3, (const ULONG_PTR*)aArg); + } +} + +/* +** There are two ways to use this macro. To set a pointer to be freed +** if an exception is thrown: +** +** SEH_FREE_ON_ERROR(0, pPtr); +** +** and to cancel the same: +** +** SEH_FREE_ON_ERROR(pPtr, 0); +** +** In the first case, there must not already be a pointer registered to +** be freed. In the second case, pPtr must be the registered pointer. +*/ +#define SEH_FREE_ON_ERROR(X,Y) \ + assert( (X==0 || Y==0) && pWal->pFree==X ); pWal->pFree = Y + +/* +** There are two ways to use this macro. To arrange for pWal->apWiData[iPg] +** to be set to pValue if an exception is thrown: +** +** SEH_SET_ON_ERROR(iPg, pValue); +** +** and to cancel the same: +** +** SEH_SET_ON_ERROR(0, 0); +*/ +#define SEH_SET_ON_ERROR(X,Y) pWal->iWiPg = X; pWal->pWiValue = Y + +#else +# define SEH_TRY VVA_ONLY(pWal->nSehTry++); +# define SEH_EXCEPT(X) VVA_ONLY(pWal->nSehTry--); assert( pWal->nSehTry==0 ); +# define SEH_INJECT_FAULT assert( pWal->nSehTry>0 ); +# define SEH_FREE_ON_ERROR(X,Y) +# define SEH_SET_ON_ERROR(X,Y) +#endif /* ifdef SQLITE_USE_SEH */ + + +/* ** Obtain a pointer to the iPage'th page of the wal-index. The wal-index ** is broken into pages of WALINDEX_PGSZ bytes. Wal-index pages are ** numbered from zero. @@ -61635,6 +65298,7 @@ static int walIndexPage( int iPage, /* The page we seek */ volatile u32 **ppPage /* Write the page pointer here */ ){ + SEH_INJECT_FAULT; if( pWal->nWiData<=iPage || (*ppPage = pWal->apWiData[iPage])==0 ){ return walIndexPageRealloc(pWal, iPage, ppPage); } @@ -61646,6 +65310,7 @@ static int walIndexPage( */ static volatile WalCkptInfo *walCkptInfo(Wal *pWal){ assert( pWal->nWiData>0 && pWal->apWiData[0] ); + SEH_INJECT_FAULT; return (volatile WalCkptInfo*)&(pWal->apWiData[0][sizeof(WalIndexHdr)/2]); } @@ -61654,6 +65319,7 @@ static volatile WalCkptInfo *walCkptInfo(Wal *pWal){ */ static volatile WalIndexHdr *walIndexHdr(Wal *pWal){ assert( pWal->nWiData>0 && pWal->apWiData[0] ); + SEH_INJECT_FAULT; return (volatile WalIndexHdr*)pWal->apWiData[0]; } @@ -61699,19 +65365,40 @@ static void walChecksumBytes( assert( nByte>=8 ); assert( (nByte&0x00000007)==0 ); assert( nByte<=65536 ); + assert( nByte%4==0 ); - if( nativeCksum ){ + if( !nativeCksum ){ + do { + s1 += BYTESWAP32(aData[0]) + s2; + s2 += BYTESWAP32(aData[1]) + s1; + aData += 2; + }while( aData<aEnd ); + }else if( nByte%64==0 ){ do { s1 += *aData++ + s2; s2 += *aData++ + s1; + s1 += *aData++ + s2; + s2 += *aData++ + s1; + s1 += *aData++ + s2; + s2 += *aData++ + s1; + s1 += *aData++ + s2; + s2 += *aData++ + s1; + s1 += *aData++ + s2; + s2 += *aData++ + s1; + s1 += *aData++ + s2; + s2 += *aData++ + s1; + s1 += *aData++ + s2; + s2 += *aData++ + s1; + s1 += *aData++ + s2; + s2 += *aData++ + s1; }while( aData<aEnd ); }else{ do { - s1 += BYTESWAP32(aData[0]) + s2; - s2 += BYTESWAP32(aData[1]) + s1; - aData += 2; + s1 += *aData++ + s2; + s2 += *aData++ + s1; }while( aData<aEnd ); } + assert( aData==aEnd ); aOut[0] = s1; aOut[1] = s2; @@ -61822,7 +65509,7 @@ static int walDecodeFrame( return 0; } - /* A frame is only valid if the page number is creater than zero. + /* A frame is only valid if the page number is greater than zero. */ pgno = sqlite3Get4byte(&aFrame[0]); if( pgno==0 ){ @@ -61830,7 +65517,7 @@ static int walDecodeFrame( } /* A frame is only valid if a checksum of the WAL header, - ** all prior frams, the first 16 bytes of this frame-header, + ** all prior frames, the first 16 bytes of this frame-header, ** and the frame-data matches the checksum in the last 8 ** bytes of this frame-header. */ @@ -61890,12 +65577,18 @@ static int walLockShared(Wal *pWal, int lockIdx){ WALTRACE(("WAL%p: acquire SHARED-%s %s\n", pWal, walLockName(lockIdx), rc ? "failed" : "ok")); VVA_ONLY( pWal->lockError = (u8)(rc!=SQLITE_OK && (rc&0xFF)!=SQLITE_BUSY); ) +#ifdef SQLITE_USE_SEH + if( rc==SQLITE_OK ) pWal->lockMask |= (1 << lockIdx); +#endif return rc; } static void walUnlockShared(Wal *pWal, int lockIdx){ if( pWal->exclusiveMode ) return; (void)sqlite3OsShmLock(pWal->pDbFd, lockIdx, 1, SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED); +#ifdef SQLITE_USE_SEH + pWal->lockMask &= ~(1 << lockIdx); +#endif WALTRACE(("WAL%p: release SHARED-%s\n", pWal, walLockName(lockIdx))); } static int walLockExclusive(Wal *pWal, int lockIdx, int n){ @@ -61906,12 +65599,20 @@ static int walLockExclusive(Wal *pWal, int lockIdx, int n){ WALTRACE(("WAL%p: acquire EXCLUSIVE-%s cnt=%d %s\n", pWal, walLockName(lockIdx), n, rc ? "failed" : "ok")); VVA_ONLY( pWal->lockError = (u8)(rc!=SQLITE_OK && (rc&0xFF)!=SQLITE_BUSY); ) +#ifdef SQLITE_USE_SEH + if( rc==SQLITE_OK ){ + pWal->lockMask |= (((1<<n)-1) << (SQLITE_SHM_NLOCK+lockIdx)); + } +#endif return rc; } static void walUnlockExclusive(Wal *pWal, int lockIdx, int n){ if( pWal->exclusiveMode ) return; (void)sqlite3OsShmLock(pWal->pDbFd, lockIdx, n, SQLITE_SHM_UNLOCK | SQLITE_SHM_EXCLUSIVE); +#ifdef SQLITE_USE_SEH + pWal->lockMask &= ~(((1<<n)-1) << (SQLITE_SHM_NLOCK+lockIdx)); +#endif WALTRACE(("WAL%p: release EXCLUSIVE-%s cnt=%d\n", pWal, walLockName(lockIdx), n)); } @@ -62003,6 +65704,7 @@ static int walFramePage(u32 iFrame){ */ static u32 walFramePgno(Wal *pWal, u32 iFrame){ int iHash = walFramePage(iFrame); + SEH_INJECT_FAULT; if( iHash==0 ){ return pWal->apWiData[0][WALINDEX_HDR_SIZE/sizeof(u32) + iFrame - 1]; } @@ -62262,6 +65964,7 @@ static int walIndexRecover(Wal *pWal){ /* Malloc a buffer to read frames into. */ szFrame = szPage + WAL_FRAME_HDRSIZE; aFrame = (u8 *)sqlite3_malloc64(szFrame + WALINDEX_PGSZ); + SEH_FREE_ON_ERROR(0, aFrame); if( !aFrame ){ rc = SQLITE_NOMEM_BKPT; goto recovery_error; @@ -62280,6 +65983,7 @@ static int walIndexRecover(Wal *pWal){ rc = walIndexPage(pWal, iPg, (volatile u32**)&aShare); assert( aShare!=0 || rc!=SQLITE_OK ); if( aShare==0 ) break; + SEH_SET_ON_ERROR(iPg, aShare); pWal->apWiData[iPg] = aPrivate; for(iFrame=iFirst; iFrame<=iLast; iFrame++){ @@ -62307,6 +66011,7 @@ static int walIndexRecover(Wal *pWal){ } } pWal->apWiData[iPg] = aShare; + SEH_SET_ON_ERROR(0,0); nHdr = (iPg==0 ? WALINDEX_HDR_SIZE : 0); nHdr32 = nHdr / sizeof(u32); #ifndef SQLITE_SAFER_WALINDEX_RECOVERY @@ -62337,9 +66042,11 @@ static int walIndexRecover(Wal *pWal){ } } #endif + SEH_INJECT_FAULT; if( iFrame<=iLast ) break; } + SEH_FREE_ON_ERROR(aFrame, 0); sqlite3_free(aFrame); } @@ -62367,6 +66074,7 @@ finished: }else{ pInfo->aReadMark[i] = READMARK_NOT_USED; } + SEH_INJECT_FAULT; walUnlockExclusive(pWal, WAL_READ_LOCK(i), 1); }else if( rc!=SQLITE_BUSY ){ goto recovery_error; @@ -62524,7 +66232,7 @@ SQLITE_PRIVATE int sqlite3WalOpen( } /* -** Change the size to which the WAL file is trucated on each reset. +** Change the size to which the WAL file is truncated on each reset. */ SQLITE_PRIVATE void sqlite3WalLimit(Wal *pWal, i64 iLimit){ if( pWal ) pWal->mxWalSize = iLimit; @@ -62750,23 +66458,16 @@ static int walIteratorInit(Wal *pWal, u32 nBackfill, WalIterator **pp){ nByte = sizeof(WalIterator) + (nSegment-1)*sizeof(struct WalSegment) + iLast*sizeof(ht_slot); - p = (WalIterator *)sqlite3_malloc64(nByte); + p = (WalIterator *)sqlite3_malloc64(nByte + + sizeof(ht_slot) * (iLast>HASHTABLE_NPAGE?HASHTABLE_NPAGE:iLast) + ); if( !p ){ return SQLITE_NOMEM_BKPT; } memset(p, 0, nByte); p->nSegment = nSegment; - - /* Allocate temporary space used by the merge-sort routine. This block - ** of memory will be freed before this function returns. - */ - aTmp = (ht_slot *)sqlite3_malloc64( - sizeof(ht_slot) * (iLast>HASHTABLE_NPAGE?HASHTABLE_NPAGE:iLast) - ); - if( !aTmp ){ - rc = SQLITE_NOMEM_BKPT; - } - + aTmp = (ht_slot*)&(((u8*)p)[nByte]); + SEH_FREE_ON_ERROR(0, p); for(i=walFramePage(nBackfill+1); rc==SQLITE_OK && i<nSegment; i++){ WalHashLoc sLoc; @@ -62794,9 +66495,8 @@ static int walIteratorInit(Wal *pWal, u32 nBackfill, WalIterator **pp){ p->aSegment[i].aPgno = (u32 *)sLoc.aPgno; } } - sqlite3_free(aTmp); - if( rc!=SQLITE_OK ){ + SEH_FREE_ON_ERROR(p, 0); walIteratorFree(p); p = 0; } @@ -62805,6 +66505,19 @@ static int walIteratorInit(Wal *pWal, u32 nBackfill, WalIterator **pp){ } #ifdef SQLITE_ENABLE_SETLK_TIMEOUT + + +/* +** Attempt to enable blocking locks that block for nMs ms. Return 1 if +** blocking locks are successfully enabled, or 0 otherwise. +*/ +static int walEnableBlockingMs(Wal *pWal, int nMs){ + int rc = sqlite3OsFileControl( + pWal->pDbFd, SQLITE_FCNTL_LOCK_TIMEOUT, (void*)&nMs + ); + return (rc==SQLITE_OK); +} + /* ** Attempt to enable blocking locks. Blocking locks are enabled only if (a) ** they are supported by the VFS, and (b) the database handle is configured @@ -62816,11 +66529,7 @@ static int walEnableBlocking(Wal *pWal){ if( pWal->db ){ int tmout = pWal->db->busyTimeout; if( tmout ){ - int rc; - rc = sqlite3OsFileControl( - pWal->pDbFd, SQLITE_FCNTL_LOCK_TIMEOUT, (void*)&tmout - ); - res = (rc==SQLITE_OK); + res = walEnableBlockingMs(pWal, tmout); } } return res; @@ -62869,20 +66578,10 @@ SQLITE_PRIVATE void sqlite3WalDb(Wal *pWal, sqlite3 *db){ pWal->db = db; } -/* -** Take an exclusive WRITE lock. Blocking if so configured. -*/ -static int walLockWriter(Wal *pWal){ - int rc; - walEnableBlocking(pWal); - rc = walLockExclusive(pWal, WAL_WRITE_LOCK, 1); - walDisableBlocking(pWal); - return rc; -} #else # define walEnableBlocking(x) 0 # define walDisableBlocking(x) -# define walLockWriter(pWal) walLockExclusive((pWal), WAL_WRITE_LOCK, 1) +# define walEnableBlockingMs(pWal, ms) 0 # define sqlite3WalDb(pWal, db) #endif /* ifdef SQLITE_ENABLE_SETLK_TIMEOUT */ @@ -63022,13 +66721,13 @@ static int walCheckpoint( mxSafeFrame = pWal->hdr.mxFrame; mxPage = pWal->hdr.nPage; for(i=1; i<WAL_NREADER; i++){ - u32 y = AtomicLoad(pInfo->aReadMark+i); + u32 y = AtomicLoad(pInfo->aReadMark+i); SEH_INJECT_FAULT; if( mxSafeFrame>y ){ assert( y<=pWal->hdr.mxFrame ); rc = walBusyLock(pWal, xBusy, pBusyArg, WAL_READ_LOCK(i), 1); if( rc==SQLITE_OK ){ u32 iMark = (i==1 ? mxSafeFrame : READMARK_NOT_USED); - AtomicStore(pInfo->aReadMark+i, iMark); + AtomicStore(pInfo->aReadMark+i, iMark); SEH_INJECT_FAULT; walUnlockExclusive(pWal, WAL_READ_LOCK(i), 1); }else if( rc==SQLITE_BUSY ){ mxSafeFrame = y; @@ -63049,8 +66748,7 @@ static int walCheckpoint( && (rc = walBusyLock(pWal,xBusy,pBusyArg,WAL_READ_LOCK(0),1))==SQLITE_OK ){ u32 nBackfill = pInfo->nBackfill; - - pInfo->nBackfillAttempted = mxSafeFrame; + pInfo->nBackfillAttempted = mxSafeFrame; SEH_INJECT_FAULT; /* Sync the WAL to disk */ rc = sqlite3OsSync(pWal->pWalFd, CKPT_SYNC_FLAGS(sync_flags)); @@ -63081,6 +66779,7 @@ static int walCheckpoint( while( rc==SQLITE_OK && 0==walIteratorNext(pIter, &iDbpage, &iFrame) ){ i64 iOffset; assert( walFramePgno(pWal, iFrame)==iDbpage ); + SEH_INJECT_FAULT; if( AtomicLoad(&db->u1.isInterrupted) ){ rc = db->mallocFailed ? SQLITE_NOMEM_BKPT : SQLITE_INTERRUPT; break; @@ -63110,7 +66809,7 @@ static int walCheckpoint( } } if( rc==SQLITE_OK ){ - AtomicStore(&pInfo->nBackfill, mxSafeFrame); + AtomicStore(&pInfo->nBackfill, mxSafeFrame); SEH_INJECT_FAULT; } } @@ -63132,6 +66831,7 @@ static int walCheckpoint( */ if( rc==SQLITE_OK && eMode!=SQLITE_CHECKPOINT_PASSIVE ){ assert( pWal->writeLock ); + SEH_INJECT_FAULT; if( pInfo->nBackfill<pWal->hdr.mxFrame ){ rc = SQLITE_BUSY; }else if( eMode>=SQLITE_CHECKPOINT_RESTART ){ @@ -63163,6 +66863,7 @@ static int walCheckpoint( } walcheckpoint_out: + SEH_FREE_ON_ERROR(pIter, 0); walIteratorFree(pIter); return rc; } @@ -63185,6 +66886,93 @@ static void walLimitSize(Wal *pWal, i64 nMax){ } } +#ifdef SQLITE_USE_SEH +/* +** This is the "standard" exception handler used in a few places to handle +** an exception thrown by reading from the *-shm mapping after it has become +** invalid in SQLITE_USE_SEH builds. It is used as follows: +** +** SEH_TRY { ... } +** SEH_EXCEPT( rc = walHandleException(pWal); ) +** +** This function does three things: +** +** 1) Determines the locks that should be held, based on the contents of +** the Wal.readLock, Wal.writeLock and Wal.ckptLock variables. All other +** held locks are assumed to be transient locks that would have been +** released had the exception not been thrown and are dropped. +** +** 2) Frees the pointer at Wal.pFree, if any, using sqlite3_free(). +** +** 3) Set pWal->apWiData[pWal->iWiPg] to pWal->pWiValue if not NULL +** +** 4) Returns SQLITE_IOERR. +*/ +static int walHandleException(Wal *pWal){ + if( pWal->exclusiveMode==0 ){ + static const int S = 1; + static const int E = (1<<SQLITE_SHM_NLOCK); + int ii; + u32 mUnlock = pWal->lockMask & ~( + (pWal->readLock<0 ? 0 : (S << WAL_READ_LOCK(pWal->readLock))) + | (pWal->writeLock ? (E << WAL_WRITE_LOCK) : 0) + | (pWal->ckptLock ? (E << WAL_CKPT_LOCK) : 0) + ); + for(ii=0; ii<SQLITE_SHM_NLOCK; ii++){ + if( (S<<ii) & mUnlock ) walUnlockShared(pWal, ii); + if( (E<<ii) & mUnlock ) walUnlockExclusive(pWal, ii, 1); + } + } + sqlite3_free(pWal->pFree); + pWal->pFree = 0; + if( pWal->pWiValue ){ + pWal->apWiData[pWal->iWiPg] = pWal->pWiValue; + pWal->pWiValue = 0; + } + return SQLITE_IOERR_IN_PAGE; +} + +/* +** Assert that the Wal.lockMask mask, which indicates the locks held +** by the connenction, is consistent with the Wal.readLock, Wal.writeLock +** and Wal.ckptLock variables. To be used as: +** +** assert( walAssertLockmask(pWal) ); +*/ +static int walAssertLockmask(Wal *pWal){ + if( pWal->exclusiveMode==0 ){ + static const int S = 1; + static const int E = (1<<SQLITE_SHM_NLOCK); + u32 mExpect = ( + (pWal->readLock<0 ? 0 : (S << WAL_READ_LOCK(pWal->readLock))) + | (pWal->writeLock ? (E << WAL_WRITE_LOCK) : 0) + | (pWal->ckptLock ? (E << WAL_CKPT_LOCK) : 0) +#ifdef SQLITE_ENABLE_SNAPSHOT + | (pWal->pSnapshot ? (pWal->lockMask & (1 << WAL_CKPT_LOCK)) : 0) +#endif + ); + assert( mExpect==pWal->lockMask ); + } + return 1; +} + +/* +** Return and zero the "system error" field set when an +** EXCEPTION_IN_PAGE_ERROR exception is caught. +*/ +SQLITE_PRIVATE int sqlite3WalSystemErrno(Wal *pWal){ + int iRet = 0; + if( pWal ){ + iRet = pWal->iSysErrno; + pWal->iSysErrno = 0; + } + return iRet; +} + +#else +# define walAssertLockmask(x) 1 +#endif /* ifdef SQLITE_USE_SEH */ + /* ** Close a connection to a log file. */ @@ -63199,6 +66987,8 @@ SQLITE_PRIVATE int sqlite3WalClose( if( pWal ){ int isDelete = 0; /* True to unlink wal and wal-index files */ + assert( walAssertLockmask(pWal) ); + /* If an EXCLUSIVE lock can be obtained on the database file (using the ** ordinary, rollback-mode locking methods, this guarantees that the ** connection associated with this log file is the only connection to @@ -63223,7 +67013,7 @@ SQLITE_PRIVATE int sqlite3WalClose( ); if( bPersist!=1 ){ /* Try to delete the WAL file if the checkpoint completed and - ** fsyned (rc==SQLITE_OK) and if we are not in persistent-wal + ** fsynced (rc==SQLITE_OK) and if we are not in persistent-wal ** mode (!bPersist) */ isDelete = 1; }else if( pWal->mxWalSize>=0 ){ @@ -63290,7 +67080,7 @@ static SQLITE_NO_TSAN int walIndexTryHdr(Wal *pWal, int *pChanged){ ** give false-positive warnings about these accesses because the tools do not ** account for the double-read and the memory barrier. The use of mutexes ** here would be problematic as the memory being accessed is potentially - ** shared among multiple processes and not all mutex implementions work + ** shared among multiple processes and not all mutex implementations work ** reliably in that environment. */ aHdr = walIndexHdr(pWal); @@ -63392,7 +67182,9 @@ static int walIndexReadHdr(Wal *pWal, int *pChanged){ } }else{ int bWriteLock = pWal->writeLock; - if( bWriteLock || SQLITE_OK==(rc = walLockWriter(pWal)) ){ + if( bWriteLock + || SQLITE_OK==(rc = walLockExclusive(pWal, WAL_WRITE_LOCK, 1)) + ){ pWal->writeLock = 1; if( SQLITE_OK==(rc = walIndexPage(pWal, 0, &page0)) ){ badHdr = walIndexTryHdr(pWal, pChanged); @@ -63400,7 +67192,8 @@ static int walIndexReadHdr(Wal *pWal, int *pChanged){ /* If the wal-index header is still malformed even while holding ** a WRITE lock, it can only mean that the header is corrupted and ** needs to be reconstructed. So run recovery to do exactly that. - */ + ** Disable blocking locks first. */ + walDisableBlocking(pWal); rc = walIndexRecover(pWal); *pChanged = 1; } @@ -63611,6 +67404,37 @@ static int walBeginShmUnreliable(Wal *pWal, int *pChanged){ } /* +** The final argument passed to walTryBeginRead() is of type (int*). The +** caller should invoke walTryBeginRead as follows: +** +** int cnt = 0; +** do { +** rc = walTryBeginRead(..., &cnt); +** }while( rc==WAL_RETRY ); +** +** The final value of "cnt" is of no use to the caller. It is used by +** the implementation of walTryBeginRead() as follows: +** +** + Each time walTryBeginRead() is called, it is incremented. Once +** it reaches WAL_RETRY_PROTOCOL_LIMIT - indicating that walTryBeginRead() +** has many times been invoked and failed with WAL_RETRY - walTryBeginRead() +** returns SQLITE_PROTOCOL. +** +** + If SQLITE_ENABLE_SETLK_TIMEOUT is defined and walTryBeginRead() failed +** because a blocking lock timed out (SQLITE_BUSY_TIMEOUT from the OS +** layer), the WAL_RETRY_BLOCKED_MASK bit is set in "cnt". In this case +** the next invocation of walTryBeginRead() may omit an expected call to +** sqlite3OsSleep(). There has already been a delay when the previous call +** waited on a lock. +*/ +#define WAL_RETRY_PROTOCOL_LIMIT 100 +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT +# define WAL_RETRY_BLOCKED_MASK 0x10000000 +#else +# define WAL_RETRY_BLOCKED_MASK 0 +#endif + +/* ** Attempt to start a read transaction. This might fail due to a race or ** other transient condition. When that happens, it returns WAL_RETRY to ** indicate to the caller that it is safe to retry immediately. @@ -63660,13 +67484,16 @@ static int walBeginShmUnreliable(Wal *pWal, int *pChanged){ ** so it takes care to hold an exclusive lock on the corresponding ** WAL_READ_LOCK() while changing values. */ -static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){ +static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int *pCnt){ volatile WalCkptInfo *pInfo; /* Checkpoint information in wal-index */ u32 mxReadMark; /* Largest aReadMark[] value */ int mxI; /* Index of largest aReadMark[] value */ int i; /* Loop counter */ int rc = SQLITE_OK; /* Return code */ u32 mxFrame; /* Wal frame to lock to */ +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + int nBlockTmout = 0; +#endif assert( pWal->readLock<0 ); /* Not currently locked */ @@ -63690,14 +67517,34 @@ static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){ ** so that on the 100th (and last) RETRY we delay for 323 milliseconds. ** The total delay time before giving up is less than 10 seconds. */ - if( cnt>5 ){ + (*pCnt)++; + if( *pCnt>5 ){ int nDelay = 1; /* Pause time in microseconds */ - if( cnt>100 ){ + int cnt = (*pCnt & ~WAL_RETRY_BLOCKED_MASK); + if( cnt>WAL_RETRY_PROTOCOL_LIMIT ){ VVA_ONLY( pWal->lockError = 1; ) return SQLITE_PROTOCOL; } - if( cnt>=10 ) nDelay = (cnt-9)*(cnt-9)*39; + if( *pCnt>=10 ) nDelay = (cnt-9)*(cnt-9)*39; +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + /* In SQLITE_ENABLE_SETLK_TIMEOUT builds, configure the file-descriptor + ** to block for locks for approximately nDelay us. This affects three + ** locks: (a) the shared lock taken on the DMS slot in os_unix.c (if + ** using os_unix.c), (b) the WRITER lock taken in walIndexReadHdr() if the + ** first attempted read fails, and (c) the shared lock taken on the + ** read-mark. + ** + ** If the previous call failed due to an SQLITE_BUSY_TIMEOUT error, + ** then sleep for the minimum of 1us. The previous call already provided + ** an extra delay while it was blocking on the lock. + */ + nBlockTmout = (nDelay+998) / 1000; + if( !useWal && walEnableBlockingMs(pWal, nBlockTmout) ){ + if( *pCnt & WAL_RETRY_BLOCKED_MASK ) nDelay = 1; + } +#endif sqlite3OsSleep(pWal->pVfs, nDelay); + *pCnt &= ~WAL_RETRY_BLOCKED_MASK; } if( !useWal ){ @@ -63705,6 +67552,13 @@ static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){ if( pWal->bShmUnreliable==0 ){ rc = walIndexReadHdr(pWal, pChanged); } +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + walDisableBlocking(pWal); + if( rc==SQLITE_BUSY_TIMEOUT ){ + rc = SQLITE_BUSY; + *pCnt |= WAL_RETRY_BLOCKED_MASK; + } +#endif if( rc==SQLITE_BUSY ){ /* If there is not a recovery running in another thread or process ** then convert BUSY errors to WAL_RETRY. If recovery is known to @@ -63741,6 +67595,7 @@ static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){ assert( pWal->nWiData>0 ); assert( pWal->apWiData[0]!=0 ); pInfo = walCkptInfo(pWal); + SEH_INJECT_FAULT; if( !useWal && AtomicLoad(&pInfo->nBackfill)==pWal->hdr.mxFrame #ifdef SQLITE_ENABLE_SNAPSHOT && (pWal->pSnapshot==0 || pWal->hdr.mxFrame==0) @@ -63790,7 +67645,7 @@ static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){ } #endif for(i=1; i<WAL_NREADER; i++){ - u32 thisMark = AtomicLoad(pInfo->aReadMark+i); + u32 thisMark = AtomicLoad(pInfo->aReadMark+i); SEH_INJECT_FAULT; if( mxReadMark<=thisMark && thisMark<=mxFrame ){ assert( thisMark!=READMARK_NOT_USED ); mxReadMark = thisMark; @@ -63818,9 +67673,19 @@ static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){ return rc==SQLITE_BUSY ? WAL_RETRY : SQLITE_READONLY_CANTINIT; } + (void)walEnableBlockingMs(pWal, nBlockTmout); rc = walLockShared(pWal, WAL_READ_LOCK(mxI)); + walDisableBlocking(pWal); if( rc ){ - return rc==SQLITE_BUSY ? WAL_RETRY : rc; +#ifdef SQLITE_ENABLE_SETLK_TIMEOUT + if( rc==SQLITE_BUSY_TIMEOUT ){ + *pCnt |= WAL_RETRY_BLOCKED_MASK; + } +#else + assert( rc!=SQLITE_BUSY_TIMEOUT ); +#endif + assert( (rc&0xFF)!=SQLITE_BUSY||rc==SQLITE_BUSY||rc==SQLITE_BUSY_TIMEOUT ); + return (rc&0xFF)==SQLITE_BUSY ? WAL_RETRY : rc; } /* Now that the read-lock has been obtained, check that neither the ** value in the aReadMark[] array or the contents of the wal-index @@ -63856,7 +67721,7 @@ static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){ ** we can guarantee that the checkpointer that set nBackfill could not ** see any pages past pWal->hdr.mxFrame, this problem does not come up. */ - pWal->minFrame = AtomicLoad(&pInfo->nBackfill)+1; + pWal->minFrame = AtomicLoad(&pInfo->nBackfill)+1; SEH_INJECT_FAULT; walShmBarrier(pWal); if( AtomicLoad(pInfo->aReadMark+mxI)!=mxReadMark || memcmp((void *)walIndexHdr(pWal), &pWal->hdr, sizeof(WalIndexHdr)) @@ -63872,6 +67737,54 @@ static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){ #ifdef SQLITE_ENABLE_SNAPSHOT /* +** This function does the work of sqlite3WalSnapshotRecover(). +*/ +static int walSnapshotRecover( + Wal *pWal, /* WAL handle */ + void *pBuf1, /* Temp buffer pWal->szPage bytes in size */ + void *pBuf2 /* Temp buffer pWal->szPage bytes in size */ +){ + int szPage = (int)pWal->szPage; + int rc; + i64 szDb; /* Size of db file in bytes */ + + rc = sqlite3OsFileSize(pWal->pDbFd, &szDb); + if( rc==SQLITE_OK ){ + volatile WalCkptInfo *pInfo = walCkptInfo(pWal); + u32 i = pInfo->nBackfillAttempted; + for(i=pInfo->nBackfillAttempted; i>AtomicLoad(&pInfo->nBackfill); i--){ + WalHashLoc sLoc; /* Hash table location */ + u32 pgno; /* Page number in db file */ + i64 iDbOff; /* Offset of db file entry */ + i64 iWalOff; /* Offset of wal file entry */ + + rc = walHashGet(pWal, walFramePage(i), &sLoc); + if( rc!=SQLITE_OK ) break; + assert( i - sLoc.iZero - 1 >=0 ); + pgno = sLoc.aPgno[i-sLoc.iZero-1]; + iDbOff = (i64)(pgno-1) * szPage; + + if( iDbOff+szPage<=szDb ){ + iWalOff = walFrameOffset(i, szPage) + WAL_FRAME_HDRSIZE; + rc = sqlite3OsRead(pWal->pWalFd, pBuf1, szPage, iWalOff); + + if( rc==SQLITE_OK ){ + rc = sqlite3OsRead(pWal->pDbFd, pBuf2, szPage, iDbOff); + } + + if( rc!=SQLITE_OK || 0==memcmp(pBuf1, pBuf2, szPage) ){ + break; + } + } + + pInfo->nBackfillAttempted = i-1; + } + } + + return rc; +} + +/* ** Attempt to reduce the value of the WalCkptInfo.nBackfillAttempted ** variable so that older snapshots can be accessed. To do this, loop ** through all wal frames from nBackfillAttempted to (nBackfill+1), @@ -63896,50 +67809,21 @@ SQLITE_PRIVATE int sqlite3WalSnapshotRecover(Wal *pWal){ assert( pWal->readLock>=0 ); rc = walLockExclusive(pWal, WAL_CKPT_LOCK, 1); if( rc==SQLITE_OK ){ - volatile WalCkptInfo *pInfo = walCkptInfo(pWal); - int szPage = (int)pWal->szPage; - i64 szDb; /* Size of db file in bytes */ - - rc = sqlite3OsFileSize(pWal->pDbFd, &szDb); - if( rc==SQLITE_OK ){ - void *pBuf1 = sqlite3_malloc(szPage); - void *pBuf2 = sqlite3_malloc(szPage); - if( pBuf1==0 || pBuf2==0 ){ - rc = SQLITE_NOMEM; - }else{ - u32 i = pInfo->nBackfillAttempted; - for(i=pInfo->nBackfillAttempted; i>AtomicLoad(&pInfo->nBackfill); i--){ - WalHashLoc sLoc; /* Hash table location */ - u32 pgno; /* Page number in db file */ - i64 iDbOff; /* Offset of db file entry */ - i64 iWalOff; /* Offset of wal file entry */ - - rc = walHashGet(pWal, walFramePage(i), &sLoc); - if( rc!=SQLITE_OK ) break; - assert( i - sLoc.iZero - 1 >=0 ); - pgno = sLoc.aPgno[i-sLoc.iZero-1]; - iDbOff = (i64)(pgno-1) * szPage; - - if( iDbOff+szPage<=szDb ){ - iWalOff = walFrameOffset(i, szPage) + WAL_FRAME_HDRSIZE; - rc = sqlite3OsRead(pWal->pWalFd, pBuf1, szPage, iWalOff); - - if( rc==SQLITE_OK ){ - rc = sqlite3OsRead(pWal->pDbFd, pBuf2, szPage, iDbOff); - } - - if( rc!=SQLITE_OK || 0==memcmp(pBuf1, pBuf2, szPage) ){ - break; - } - } - - pInfo->nBackfillAttempted = i-1; - } + void *pBuf1 = sqlite3_malloc(pWal->szPage); + void *pBuf2 = sqlite3_malloc(pWal->szPage); + if( pBuf1==0 || pBuf2==0 ){ + rc = SQLITE_NOMEM; + }else{ + pWal->ckptLock = 1; + SEH_TRY { + rc = walSnapshotRecover(pWal, pBuf1, pBuf2); } - - sqlite3_free(pBuf1); - sqlite3_free(pBuf2); + SEH_EXCEPT( rc = SQLITE_IOERR_IN_PAGE; ) + pWal->ckptLock = 0; } + + sqlite3_free(pBuf1); + sqlite3_free(pBuf2); walUnlockExclusive(pWal, WAL_CKPT_LOCK, 1); } @@ -63948,28 +67832,20 @@ SQLITE_PRIVATE int sqlite3WalSnapshotRecover(Wal *pWal){ #endif /* SQLITE_ENABLE_SNAPSHOT */ /* -** Begin a read transaction on the database. -** -** This routine used to be called sqlite3OpenSnapshot() and with good reason: -** it takes a snapshot of the state of the WAL and wal-index for the current -** instant in time. The current thread will continue to use this snapshot. -** Other threads might append new content to the WAL and wal-index but -** that extra content is ignored by the current thread. -** -** If the database contents have changes since the previous read -** transaction, then *pChanged is set to 1 before returning. The -** Pager layer will use this to know that its cache is stale and -** needs to be flushed. +** This function does the work of sqlite3WalBeginReadTransaction() (see +** below). That function simply calls this one inside an SEH_TRY{...} block. */ -SQLITE_PRIVATE int sqlite3WalBeginReadTransaction(Wal *pWal, int *pChanged){ +static int walBeginReadTransaction(Wal *pWal, int *pChanged){ int rc; /* Return code */ int cnt = 0; /* Number of TryBeginRead attempts */ #ifdef SQLITE_ENABLE_SNAPSHOT + int ckptLock = 0; int bChanged = 0; WalIndexHdr *pSnapshot = pWal->pSnapshot; #endif assert( pWal->ckptLock==0 ); + assert( pWal->nSehTry>0 ); #ifdef SQLITE_ENABLE_SNAPSHOT if( pSnapshot ){ @@ -63992,12 +67868,12 @@ SQLITE_PRIVATE int sqlite3WalBeginReadTransaction(Wal *pWal, int *pChanged){ if( rc!=SQLITE_OK ){ return rc; } - pWal->ckptLock = 1; + ckptLock = 1; } #endif do{ - rc = walTryBeginRead(pWal, pChanged, 0, ++cnt); + rc = walTryBeginRead(pWal, pChanged, 0, &cnt); }while( rc==WAL_RETRY ); testcase( (rc&0xff)==SQLITE_BUSY ); testcase( (rc&0xff)==SQLITE_IOERR ); @@ -64056,16 +67932,38 @@ SQLITE_PRIVATE int sqlite3WalBeginReadTransaction(Wal *pWal, int *pChanged){ } /* Release the shared CKPT lock obtained above. */ - if( pWal->ckptLock ){ + if( ckptLock ){ assert( pSnapshot ); walUnlockShared(pWal, WAL_CKPT_LOCK); - pWal->ckptLock = 0; } #endif return rc; } /* +** Begin a read transaction on the database. +** +** This routine used to be called sqlite3OpenSnapshot() and with good reason: +** it takes a snapshot of the state of the WAL and wal-index for the current +** instant in time. The current thread will continue to use this snapshot. +** Other threads might append new content to the WAL and wal-index but +** that extra content is ignored by the current thread. +** +** If the database contents have changes since the previous read +** transaction, then *pChanged is set to 1 before returning. The +** Pager layer will use this to know that its cache is stale and +** needs to be flushed. +*/ +SQLITE_PRIVATE int sqlite3WalBeginReadTransaction(Wal *pWal, int *pChanged){ + int rc; + SEH_TRY { + rc = walBeginReadTransaction(pWal, pChanged); + } + SEH_EXCEPT( rc = walHandleException(pWal); ) + return rc; +} + +/* ** Finish with a read transaction. All this does is release the ** read-lock. */ @@ -64085,7 +67983,7 @@ SQLITE_PRIVATE void sqlite3WalEndReadTransaction(Wal *pWal){ ** Return SQLITE_OK if successful, or an error code if an error occurs. If an ** error does occur, the final value of *piRead is undefined. */ -SQLITE_PRIVATE int sqlite3WalFindFrame( +static int walFindFrame( Wal *pWal, /* WAL handle */ Pgno pgno, /* Database page number to read data for */ u32 *piRead /* OUT: Frame number (or zero) */ @@ -64148,6 +68046,7 @@ SQLITE_PRIVATE int sqlite3WalFindFrame( } nCollide = HASHTABLE_NSLOT; iKey = walHash(pgno); + SEH_INJECT_FAULT; while( (iH = AtomicLoad(&sLoc.aHash[iKey]))!=0 ){ u32 iFrame = iH + sLoc.iZero; if( iFrame<=iLast && iFrame>=pWal->minFrame && sLoc.aPgno[iH-1]==pgno ){ @@ -64155,6 +68054,7 @@ SQLITE_PRIVATE int sqlite3WalFindFrame( iRead = iFrame; } if( (nCollide--)==0 ){ + *piRead = 0; return SQLITE_CORRUPT_BKPT; } iKey = walNextHash(iKey); @@ -64185,6 +68085,30 @@ SQLITE_PRIVATE int sqlite3WalFindFrame( } /* +** Search the wal file for page pgno. If found, set *piRead to the frame that +** contains the page. Otherwise, if pgno is not in the wal file, set *piRead +** to zero. +** +** Return SQLITE_OK if successful, or an error code if an error occurs. If an +** error does occur, the final value of *piRead is undefined. +** +** The difference between this function and walFindFrame() is that this +** function wraps walFindFrame() in an SEH_TRY{...} block. +*/ +SQLITE_PRIVATE int sqlite3WalFindFrame( + Wal *pWal, /* WAL handle */ + Pgno pgno, /* Database page number to read data for */ + u32 *piRead /* OUT: Frame number (or zero) */ +){ + int rc; + SEH_TRY { + rc = walFindFrame(pWal, pgno, piRead); + } + SEH_EXCEPT( rc = SQLITE_IOERR_IN_PAGE; ) + return rc; +} + +/* ** Read the contents of frame iRead from the wal file into buffer pOut ** (which is nOut bytes in size). Return SQLITE_OK if successful, or an ** error code otherwise. @@ -64265,12 +68189,17 @@ SQLITE_PRIVATE int sqlite3WalBeginWriteTransaction(Wal *pWal){ ** time the read transaction on this connection was started, then ** the write is disallowed. */ - if( memcmp(&pWal->hdr, (void *)walIndexHdr(pWal), sizeof(WalIndexHdr))!=0 ){ + SEH_TRY { + if( memcmp(&pWal->hdr, (void *)walIndexHdr(pWal), sizeof(WalIndexHdr))!=0 ){ + rc = SQLITE_BUSY_SNAPSHOT; + } + } + SEH_EXCEPT( rc = SQLITE_IOERR_IN_PAGE; ) + + if( rc!=SQLITE_OK ){ walUnlockExclusive(pWal, WAL_WRITE_LOCK, 1); pWal->writeLock = 0; - rc = SQLITE_BUSY_SNAPSHOT; } - return rc; } @@ -64306,30 +68235,33 @@ SQLITE_PRIVATE int sqlite3WalUndo(Wal *pWal, int (*xUndo)(void *, Pgno), void *p Pgno iMax = pWal->hdr.mxFrame; Pgno iFrame; - /* Restore the clients cache of the wal-index header to the state it - ** was in before the client began writing to the database. - */ - memcpy(&pWal->hdr, (void *)walIndexHdr(pWal), sizeof(WalIndexHdr)); - - for(iFrame=pWal->hdr.mxFrame+1; - ALWAYS(rc==SQLITE_OK) && iFrame<=iMax; - iFrame++ - ){ - /* This call cannot fail. Unless the page for which the page number - ** is passed as the second argument is (a) in the cache and - ** (b) has an outstanding reference, then xUndo is either a no-op - ** (if (a) is false) or simply expels the page from the cache (if (b) - ** is false). - ** - ** If the upper layer is doing a rollback, it is guaranteed that there - ** are no outstanding references to any page other than page 1. And - ** page 1 is never written to the log until the transaction is - ** committed. As a result, the call to xUndo may not fail. + SEH_TRY { + /* Restore the clients cache of the wal-index header to the state it + ** was in before the client began writing to the database. */ - assert( walFramePgno(pWal, iFrame)!=1 ); - rc = xUndo(pUndoCtx, walFramePgno(pWal, iFrame)); + memcpy(&pWal->hdr, (void *)walIndexHdr(pWal), sizeof(WalIndexHdr)); + + for(iFrame=pWal->hdr.mxFrame+1; + ALWAYS(rc==SQLITE_OK) && iFrame<=iMax; + iFrame++ + ){ + /* This call cannot fail. Unless the page for which the page number + ** is passed as the second argument is (a) in the cache and + ** (b) has an outstanding reference, then xUndo is either a no-op + ** (if (a) is false) or simply expels the page from the cache (if (b) + ** is false). + ** + ** If the upper layer is doing a rollback, it is guaranteed that there + ** are no outstanding references to any page other than page 1. And + ** page 1 is never written to the log until the transaction is + ** committed. As a result, the call to xUndo may not fail. + */ + assert( walFramePgno(pWal, iFrame)!=1 ); + rc = xUndo(pUndoCtx, walFramePgno(pWal, iFrame)); + } + if( iMax!=pWal->hdr.mxFrame ) walCleanupHash(pWal); } - if( iMax!=pWal->hdr.mxFrame ) walCleanupHash(pWal); + SEH_EXCEPT( rc = SQLITE_IOERR_IN_PAGE; ) } return rc; } @@ -64373,7 +68305,10 @@ SQLITE_PRIVATE int sqlite3WalSavepointUndo(Wal *pWal, u32 *aWalData){ pWal->hdr.mxFrame = aWalData[0]; pWal->hdr.aFrameCksum[0] = aWalData[1]; pWal->hdr.aFrameCksum[1] = aWalData[2]; - walCleanupHash(pWal); + SEH_TRY { + walCleanupHash(pWal); + } + SEH_EXCEPT( rc = SQLITE_IOERR_IN_PAGE; ) } return rc; @@ -64423,7 +68358,7 @@ static int walRestartLog(Wal *pWal){ cnt = 0; do{ int notUsed; - rc = walTryBeginRead(pWal, ¬Used, 1, ++cnt); + rc = walTryBeginRead(pWal, ¬Used, 1, &cnt); }while( rc==WAL_RETRY ); assert( (rc&0xff)!=SQLITE_BUSY ); /* BUSY not possible when useWal==1 */ testcase( (rc&0xff)==SQLITE_IOERR ); @@ -64554,7 +68489,7 @@ static int walRewriteChecksums(Wal *pWal, u32 iLast){ ** Write a set of frames to the log. The caller must hold the write-lock ** on the log file (obtained using sqlite3WalBeginWriteTransaction()). */ -SQLITE_PRIVATE int sqlite3WalFrames( +static int walFrames( Wal *pWal, /* Wal handle to write to */ int szPage, /* Database page-size in bytes */ PgHdr *pList, /* List of dirty pages to write */ @@ -64642,7 +68577,9 @@ SQLITE_PRIVATE int sqlite3WalFrames( if( rc ) return rc; } } - assert( (int)pWal->szPage==szPage ); + if( (int)pWal->szPage!=szPage ){ + return SQLITE_CORRUPT_BKPT; /* TH3 test case: cov1/corrupt155.test */ + } /* Setup information needed to write frames into the WAL */ w.pWal = pWal; @@ -64663,7 +68600,7 @@ SQLITE_PRIVATE int sqlite3WalFrames( ** checksums must be recomputed when the transaction is committed. */ if( iFirst && (p->pDirty || isCommit==0) ){ u32 iWrite = 0; - VVA_ONLY(rc =) sqlite3WalFindFrame(pWal, p->pgno, &iWrite); + VVA_ONLY(rc =) walFindFrame(pWal, p->pgno, &iWrite); assert( rc==SQLITE_OK || iWrite==0 ); if( iWrite>=iFirst ){ i64 iOff = walFrameOffset(iWrite, szPage) + WAL_FRAME_HDRSIZE; @@ -64783,6 +68720,29 @@ SQLITE_PRIVATE int sqlite3WalFrames( } /* +** Write a set of frames to the log. The caller must hold the write-lock +** on the log file (obtained using sqlite3WalBeginWriteTransaction()). +** +** The difference between this function and walFrames() is that this +** function wraps walFrames() in an SEH_TRY{...} block. +*/ +SQLITE_PRIVATE int sqlite3WalFrames( + Wal *pWal, /* Wal handle to write to */ + int szPage, /* Database page-size in bytes */ + PgHdr *pList, /* List of dirty pages to write */ + Pgno nTruncate, /* Database size after this commit */ + int isCommit, /* True if this is a commit */ + int sync_flags /* Flags to pass to OsSync() (or 0) */ +){ + int rc; + SEH_TRY { + rc = walFrames(pWal, szPage, pList, nTruncate, isCommit, sync_flags); + } + SEH_EXCEPT( rc = walHandleException(pWal); ) + return rc; +} + +/* ** This routine is called to implement sqlite3_wal_checkpoint() and ** related interfaces. ** @@ -64819,10 +68779,9 @@ SQLITE_PRIVATE int sqlite3WalCheckpoint( if( pWal->readOnly ) return SQLITE_READONLY; WALTRACE(("WAL%p: checkpoint begins\n", pWal)); - /* Enable blocking locks, if possible. If blocking locks are successfully - ** enabled, set xBusy2=0 so that the busy-handler is never invoked. */ + /* Enable blocking locks, if possible. */ sqlite3WalDb(pWal, db); - (void)walEnableBlocking(pWal); + if( xBusy2 ) (void)walEnableBlocking(pWal); /* IMPLEMENTATION-OF: R-62028-47212 All calls obtain an exclusive ** "checkpoint" lock on the database file. @@ -64861,30 +68820,38 @@ SQLITE_PRIVATE int sqlite3WalCheckpoint( /* Read the wal-index header. */ - if( rc==SQLITE_OK ){ - walDisableBlocking(pWal); - rc = walIndexReadHdr(pWal, &isChanged); - (void)walEnableBlocking(pWal); - if( isChanged && pWal->pDbFd->pMethods->iVersion>=3 ){ - sqlite3OsUnfetch(pWal->pDbFd, 0, 0); + SEH_TRY { + if( rc==SQLITE_OK ){ + /* For a passive checkpoint, do not re-enable blocking locks after + ** reading the wal-index header. A passive checkpoint should not block + ** or invoke the busy handler. The only lock such a checkpoint may + ** attempt to obtain is a lock on a read-slot, and it should give up + ** immediately and do a partial checkpoint if it cannot obtain it. */ + walDisableBlocking(pWal); + rc = walIndexReadHdr(pWal, &isChanged); + if( eMode2!=SQLITE_CHECKPOINT_PASSIVE ) (void)walEnableBlocking(pWal); + if( isChanged && pWal->pDbFd->pMethods->iVersion>=3 ){ + sqlite3OsUnfetch(pWal->pDbFd, 0, 0); + } } - } - /* Copy data from the log to the database file. */ - if( rc==SQLITE_OK ){ - - if( pWal->hdr.mxFrame && walPagesize(pWal)!=nBuf ){ - rc = SQLITE_CORRUPT_BKPT; - }else{ - rc = walCheckpoint(pWal, db, eMode2, xBusy2, pBusyArg, sync_flags, zBuf); - } + /* Copy data from the log to the database file. */ + if( rc==SQLITE_OK ){ + if( pWal->hdr.mxFrame && walPagesize(pWal)!=nBuf ){ + rc = SQLITE_CORRUPT_BKPT; + }else{ + rc = walCheckpoint(pWal, db, eMode2, xBusy2, pBusyArg, sync_flags,zBuf); + } - /* If no error occurred, set the output variables. */ - if( rc==SQLITE_OK || rc==SQLITE_BUSY ){ - if( pnLog ) *pnLog = (int)pWal->hdr.mxFrame; - if( pnCkpt ) *pnCkpt = (int)(walCkptInfo(pWal)->nBackfill); + /* If no error occurred, set the output variables. */ + if( rc==SQLITE_OK || rc==SQLITE_BUSY ){ + if( pnLog ) *pnLog = (int)pWal->hdr.mxFrame; + SEH_INJECT_FAULT; + if( pnCkpt ) *pnCkpt = (int)(walCkptInfo(pWal)->nBackfill); + } } } + SEH_EXCEPT( rc = walHandleException(pWal); ) if( isChanged ){ /* If a new wal-index header was loaded before the checkpoint was @@ -64961,7 +68928,9 @@ SQLITE_PRIVATE int sqlite3WalExclusiveMode(Wal *pWal, int op){ ** locks are taken in this case). Nor should the pager attempt to ** upgrade to exclusive-mode following such an error. */ +#ifndef SQLITE_USE_SEH assert( pWal->readLock>=0 || pWal->lockError ); +#endif assert( pWal->readLock>=0 || (op<=0 && pWal->exclusiveMode==0) ); if( op==0 ){ @@ -65062,16 +69031,19 @@ SQLITE_API int sqlite3_snapshot_cmp(sqlite3_snapshot *p1, sqlite3_snapshot *p2){ */ SQLITE_PRIVATE int sqlite3WalSnapshotCheck(Wal *pWal, sqlite3_snapshot *pSnapshot){ int rc; - rc = walLockShared(pWal, WAL_CKPT_LOCK); - if( rc==SQLITE_OK ){ - WalIndexHdr *pNew = (WalIndexHdr*)pSnapshot; - if( memcmp(pNew->aSalt, pWal->hdr.aSalt, sizeof(pWal->hdr.aSalt)) - || pNew->mxFrame<walCkptInfo(pWal)->nBackfillAttempted - ){ - rc = SQLITE_ERROR_SNAPSHOT; - walUnlockShared(pWal, WAL_CKPT_LOCK); + SEH_TRY { + rc = walLockShared(pWal, WAL_CKPT_LOCK); + if( rc==SQLITE_OK ){ + WalIndexHdr *pNew = (WalIndexHdr*)pSnapshot; + if( memcmp(pNew->aSalt, pWal->hdr.aSalt, sizeof(pWal->hdr.aSalt)) + || pNew->mxFrame<walCkptInfo(pWal)->nBackfillAttempted + ){ + rc = SQLITE_ERROR_SNAPSHOT; + walUnlockShared(pWal, WAL_CKPT_LOCK); + } } } + SEH_EXCEPT( rc = walHandleException(pWal); ) return rc; } @@ -65194,7 +69166,7 @@ SQLITE_PRIVATE sqlite3_file *sqlite3WalFile(Wal *pWal){ ** 22 1 Min embedded payload fraction (must be 32) ** 23 1 Min leaf payload fraction (must be 32) ** 24 4 File change counter -** 28 4 Reserved for future use +** 28 4 The size of the database in pages ** 32 4 First freelist page ** 36 4 Number of freelist pages in the file ** 40 60 15 4-byte meta values passed to higher layers @@ -65302,7 +69274,7 @@ SQLITE_PRIVATE sqlite3_file *sqlite3WalFile(Wal *pWal){ ** byte are used. The integer consists of all bytes that have bit 8 set and ** the first byte with bit 8 clear. The most significant byte of the integer ** appears first. A variable-length integer may not be more than 9 bytes long. -** As a special case, all 8 bytes of the 9th byte are used as data. This +** As a special case, all 8 bits of the 9th byte are used as data. This ** allows a 64-bit integer to be encoded in 9 bytes. ** ** 0x00 becomes 0x00000000 @@ -65310,7 +69282,7 @@ SQLITE_PRIVATE sqlite3_file *sqlite3WalFile(Wal *pWal){ ** 0x81 0x00 becomes 0x00000080 ** 0x82 0x00 becomes 0x00000100 ** 0x80 0x7f becomes 0x0000007f -** 0x8a 0x91 0xd1 0xac 0x78 becomes 0x12345678 +** 0x81 0x91 0xd1 0xac 0x78 becomes 0x12345678 ** 0x81 0x81 0x81 0x81 0x01 becomes 0x10204081 ** ** Variable length integers are used for rowids and to hold the number of @@ -65393,7 +69365,7 @@ typedef struct CellInfo CellInfo; ** page that has been loaded into memory. The information in this object ** is derived from the raw on-disk page content. ** -** As each database page is loaded into memory, the pager allocats an +** As each database page is loaded into memory, the pager allocates an ** instance of this object and zeros the first 8 bytes. (This is the ** "extra" information associated with each page of the pager.) ** @@ -65425,7 +69397,7 @@ struct MemPage { u8 *aData; /* Pointer to disk image of the page data */ u8 *aDataEnd; /* One byte past the end of the entire page - not just ** the usable space, the entire page. Used to prevent - ** corruption-induced of buffer overflow. */ + ** corruption-induced buffer overflow. */ u8 *aCellIdx; /* The cell index area */ u8 *aDataOfst; /* Same as aData for leaves. aData+4 for interior */ DbPage *pDbPage; /* Pager page handle */ @@ -65686,7 +69658,7 @@ struct BtCursor { #define BTCF_WriteFlag 0x01 /* True if a write cursor */ #define BTCF_ValidNKey 0x02 /* True if info.nKey is valid */ #define BTCF_ValidOvfl 0x04 /* True if aOverflow is valid */ -#define BTCF_AtLast 0x08 /* Cursor is pointing ot the last entry */ +#define BTCF_AtLast 0x08 /* Cursor is pointing to the last entry */ #define BTCF_Incrblob 0x10 /* True if an incremental I/O handle */ #define BTCF_Multiple 0x20 /* Maybe another cursor on the same btree */ #define BTCF_Pinned 0x40 /* Cursor is busy and cannot be moved */ @@ -65730,7 +69702,7 @@ struct BtCursor { /* ** The database page the PENDING_BYTE occupies. This page is never used. */ -# define PENDING_BYTE_PAGE(pBt) PAGER_MJ_PGNO(pBt) +#define PENDING_BYTE_PAGE(pBt) ((Pgno)((PENDING_BYTE/((pBt)->pageSize))+1)) /* ** These macros define the location of the pointer-map entry for a @@ -65804,15 +69776,15 @@ struct BtCursor { ** So, this macro is defined instead. */ #ifndef SQLITE_OMIT_AUTOVACUUM -#define ISAUTOVACUUM (pBt->autoVacuum) +#define ISAUTOVACUUM(pBt) (pBt->autoVacuum) #else -#define ISAUTOVACUUM 0 +#define ISAUTOVACUUM(pBt) 0 #endif /* -** This structure is passed around through all the sanity checking routines -** in order to keep track of some global state information. +** This structure is passed around through all the PRAGMA integrity_check +** checking routines in order to keep track of some global state information. ** ** The aRef[] array is allocated so that there is 1 bit for each page in ** the database. As the integrity-check proceeds, for each page used in @@ -65825,13 +69797,15 @@ struct IntegrityCk { BtShared *pBt; /* The tree being checked out */ Pager *pPager; /* The associated pager. Also accessible by pBt->pPager */ u8 *aPgRef; /* 1 bit per page in the db (see above) */ - Pgno nPage; /* Number of pages in the database */ + Pgno nCkPage; /* Pages in the database. 0 for partial check */ int mxErr; /* Stop accumulating errors when this reaches zero */ int nErr; /* Number of messages written to zErrMsg so far */ - int bOomFault; /* A memory allocation error has occurred */ + int rc; /* SQLITE_OK, SQLITE_NOMEM, or SQLITE_INTERRUPT */ + u32 nStep; /* Number of steps into the integrity_check process */ const char *zPfx; /* Error message prefix */ - Pgno v1; /* Value for first %u substitution in zPfx */ - int v2; /* Value for second %d substitution in zPfx */ + Pgno v0; /* Value for first %u substitution in zPfx (root page) */ + Pgno v1; /* Value for second %u substitution in zPfx (current pg) */ + int v2; /* Value for third %d substitution in zPfx */ StrAccum errMsg; /* Accumulate the error message text here */ u32 *heap; /* Min-heap used for analyzing cell coverage */ sqlite3 *db; /* Database connection running the check */ @@ -65847,7 +69821,7 @@ struct IntegrityCk { /* ** get2byteAligned(), unlike get2byte(), requires that its argument point to a -** two-byte aligned address. get2bytea() is only used for accessing the +** two-byte aligned address. get2byteAligned() is only used for accessing the ** cell addresses in a btree header. */ #if SQLITE_BYTEORDER==4321 @@ -66024,7 +69998,7 @@ SQLITE_PRIVATE int sqlite3BtreeHoldsMutex(Btree *p){ ** ** There is a corresponding leave-all procedures. ** -** Enter the mutexes in accending order by BtShared pointer address +** Enter the mutexes in ascending order by BtShared pointer address ** to avoid the possibility of deadlock when two threads with ** two or more btrees in common both try to lock all their btrees ** at the same instant. @@ -66098,6 +70072,7 @@ SQLITE_PRIVATE int sqlite3BtreeHoldsAllMutexes(sqlite3 *db){ SQLITE_PRIVATE int sqlite3SchemaMutexHeld(sqlite3 *db, int iDb, Schema *pSchema){ Btree *p; assert( db!=0 ); + if( db->pVfs==0 && db->nDb==0 ) return 1; if( pSchema ) iDb = sqlite3SchemaToIndex(db, pSchema); assert( iDb>=0 && iDb<db->nDb ); if( !sqlite3_mutex_held(db->mutex) ) return 0; @@ -66293,8 +70268,8 @@ SQLITE_PRIVATE sqlite3_uint64 sqlite3BtreeSeekCount(Btree *pBt){ int corruptPageError(int lineno, MemPage *p){ char *zMsg; sqlite3BeginBenignMalloc(); - zMsg = sqlite3_mprintf("database corruption page %d of %s", - (int)p->pgno, sqlite3PagerFilename(p->pBt->pPager, 0) + zMsg = sqlite3_mprintf("database corruption page %u of %s", + p->pgno, sqlite3PagerFilename(p->pBt->pPager, 0) ); sqlite3EndBenignMalloc(); if( zMsg ){ @@ -66371,7 +70346,7 @@ static int hasSharedCacheTableLock( int bSeen = 0; for(p=sqliteHashFirst(&pSchema->idxHash); p; p=sqliteHashNext(p)){ Index *pIdx = (Index *)sqliteHashData(p); - if( pIdx->tnum==(int)iRoot ){ + if( pIdx->tnum==iRoot ){ if( bSeen ){ /* Two or more indexes share the same root page. There must ** be imposter tables. So just return true. The assert is not @@ -66964,7 +70939,7 @@ SQLITE_PRIVATE void sqlite3BtreeClearCursor(BtCursor *pCur){ /* ** In this version of BtreeMoveto, pKey is a packed index record ** such as is generated by the OP_MakeRecord opcode. Unpack the -** record and then call BtreeMovetoUnpacked() to do the work. +** record and then call sqlite3BtreeIndexMoveto() to do the work. */ static int btreeMoveto( BtCursor *pCur, /* Cursor open on the btree to be searched */ @@ -67103,8 +71078,25 @@ SQLITE_PRIVATE int sqlite3BtreeCursorRestore(BtCursor *pCur, int *pDifferentRow) */ SQLITE_PRIVATE void sqlite3BtreeCursorHint(BtCursor *pCur, int eHintType, ...){ /* Used only by system that substitute their own storage engine */ +#ifdef SQLITE_DEBUG + if( ALWAYS(eHintType==BTREE_HINT_RANGE) ){ + va_list ap; + Expr *pExpr; + Walker w; + memset(&w, 0, sizeof(w)); + w.xExprCallback = sqlite3CursorRangeHintExprCheck; + va_start(ap, eHintType); + pExpr = va_arg(ap, Expr*); + w.u.aMem = va_arg(ap, Mem*); + va_end(ap); + assert( pExpr!=0 ); + assert( w.u.aMem!=0 ); + sqlite3WalkExpr(&w, pExpr); + } +#endif /* SQLITE_DEBUG */ } -#endif +#endif /* SQLITE_ENABLE_CURSOR_HINTS */ + /* ** Provide flag hints to the cursor. @@ -67189,7 +71181,7 @@ static void ptrmapPut(BtShared *pBt, Pgno key, u8 eType, Pgno parent, int *pRC){ pPtrmap = (u8 *)sqlite3PagerGetData(pDbPage); if( eType!=pPtrmap[offset] || get4byte(&pPtrmap[offset+1])!=parent ){ - TRACE(("PTRMAP_UPDATE: %d->(%d,%d)\n", key, eType, parent)); + TRACE(("PTRMAP_UPDATE: %u->(%u,%u)\n", key, eType, parent)); *pRC= rc = sqlite3PagerWrite(pDbPage); if( rc==SQLITE_OK ){ pPtrmap[offset] = eType; @@ -67388,27 +71380,31 @@ static void btreeParseCellPtr( iKey = *pIter; if( iKey>=0x80 ){ u8 x; - iKey = ((iKey&0x7f)<<7) | ((x = *++pIter) & 0x7f); + iKey = (iKey<<7) ^ (x = *++pIter); if( x>=0x80 ){ - iKey = (iKey<<7) | ((x =*++pIter) & 0x7f); + iKey = (iKey<<7) ^ (x = *++pIter); if( x>=0x80 ){ - iKey = (iKey<<7) | ((x = *++pIter) & 0x7f); + iKey = (iKey<<7) ^ 0x10204000 ^ (x = *++pIter); if( x>=0x80 ){ - iKey = (iKey<<7) | ((x = *++pIter) & 0x7f); + iKey = (iKey<<7) ^ 0x4000 ^ (x = *++pIter); if( x>=0x80 ){ - iKey = (iKey<<7) | ((x = *++pIter) & 0x7f); + iKey = (iKey<<7) ^ 0x4000 ^ (x = *++pIter); if( x>=0x80 ){ - iKey = (iKey<<7) | ((x = *++pIter) & 0x7f); + iKey = (iKey<<7) ^ 0x4000 ^ (x = *++pIter); if( x>=0x80 ){ - iKey = (iKey<<7) | ((x = *++pIter) & 0x7f); + iKey = (iKey<<7) ^ 0x4000 ^ (x = *++pIter); if( x>=0x80 ){ - iKey = (iKey<<8) | (*++pIter); + iKey = (iKey<<8) ^ 0x8000 ^ (*++pIter); } } } } } + }else{ + iKey ^= 0x204000; } + }else{ + iKey ^= 0x4000; } } pIter++; @@ -67484,10 +71480,12 @@ static void btreeParseCell( ** the space used by the cell pointer. ** ** cellSizePtrNoPayload() => table internal nodes -** cellSizePtr() => all index nodes & table leaf nodes +** cellSizePtrTableLeaf() => table leaf nodes +** cellSizePtr() => index internal nodes +** cellSizeIdxLeaf() => index leaf nodes */ static u16 cellSizePtr(MemPage *pPage, u8 *pCell){ - u8 *pIter = pCell + pPage->childPtrSize; /* For looping over bytes of pCell */ + u8 *pIter = pCell + 4; /* For looping over bytes of pCell */ u8 *pEnd; /* End mark for a varint */ u32 nSize; /* Size value to return */ @@ -67500,6 +71498,7 @@ static u16 cellSizePtr(MemPage *pPage, u8 *pCell){ pPage->xParseCell(pPage, pCell, &debuginfo); #endif + assert( pPage->childPtrSize==4 ); nSize = *pIter; if( nSize>=0x80 ){ pEnd = &pIter[8]; @@ -67509,13 +71508,48 @@ static u16 cellSizePtr(MemPage *pPage, u8 *pCell){ }while( *(pIter)>=0x80 && pIter<pEnd ); } pIter++; - if( pPage->intKey ){ - /* pIter now points at the 64-bit integer key value, a variable length - ** integer. The following block moves pIter to point at the first byte - ** past the end of the key value. */ - pEnd = &pIter[9]; - while( (*pIter++)&0x80 && pIter<pEnd ); + testcase( nSize==pPage->maxLocal ); + testcase( nSize==(u32)pPage->maxLocal+1 ); + if( nSize<=pPage->maxLocal ){ + nSize += (u32)(pIter - pCell); + assert( nSize>4 ); + }else{ + int minLocal = pPage->minLocal; + nSize = minLocal + (nSize - minLocal) % (pPage->pBt->usableSize - 4); + testcase( nSize==pPage->maxLocal ); + testcase( nSize==(u32)pPage->maxLocal+1 ); + if( nSize>pPage->maxLocal ){ + nSize = minLocal; + } + nSize += 4 + (u16)(pIter - pCell); + } + assert( nSize==debuginfo.nSize || CORRUPT_DB ); + return (u16)nSize; +} +static u16 cellSizePtrIdxLeaf(MemPage *pPage, u8 *pCell){ + u8 *pIter = pCell; /* For looping over bytes of pCell */ + u8 *pEnd; /* End mark for a varint */ + u32 nSize; /* Size value to return */ + +#ifdef SQLITE_DEBUG + /* The value returned by this function should always be the same as + ** the (CellInfo.nSize) value found by doing a full parse of the + ** cell. If SQLITE_DEBUG is defined, an assert() at the bottom of + ** this function verifies that this invariant is not violated. */ + CellInfo debuginfo; + pPage->xParseCell(pPage, pCell, &debuginfo); +#endif + + assert( pPage->childPtrSize==0 ); + nSize = *pIter; + if( nSize>=0x80 ){ + pEnd = &pIter[8]; + nSize &= 0x7f; + do{ + nSize = (nSize<<7) | (*++pIter & 0x7f); + }while( *(pIter)>=0x80 && pIter<pEnd ); } + pIter++; testcase( nSize==pPage->maxLocal ); testcase( nSize==(u32)pPage->maxLocal+1 ); if( nSize<=pPage->maxLocal ){ @@ -67555,6 +71589,58 @@ static u16 cellSizePtrNoPayload(MemPage *pPage, u8 *pCell){ assert( debuginfo.nSize==(u16)(pIter - pCell) || CORRUPT_DB ); return (u16)(pIter - pCell); } +static u16 cellSizePtrTableLeaf(MemPage *pPage, u8 *pCell){ + u8 *pIter = pCell; /* For looping over bytes of pCell */ + u8 *pEnd; /* End mark for a varint */ + u32 nSize; /* Size value to return */ + +#ifdef SQLITE_DEBUG + /* The value returned by this function should always be the same as + ** the (CellInfo.nSize) value found by doing a full parse of the + ** cell. If SQLITE_DEBUG is defined, an assert() at the bottom of + ** this function verifies that this invariant is not violated. */ + CellInfo debuginfo; + pPage->xParseCell(pPage, pCell, &debuginfo); +#endif + + nSize = *pIter; + if( nSize>=0x80 ){ + pEnd = &pIter[8]; + nSize &= 0x7f; + do{ + nSize = (nSize<<7) | (*++pIter & 0x7f); + }while( *(pIter)>=0x80 && pIter<pEnd ); + } + pIter++; + /* pIter now points at the 64-bit integer key value, a variable length + ** integer. The following block moves pIter to point at the first byte + ** past the end of the key value. */ + if( (*pIter++)&0x80 + && (*pIter++)&0x80 + && (*pIter++)&0x80 + && (*pIter++)&0x80 + && (*pIter++)&0x80 + && (*pIter++)&0x80 + && (*pIter++)&0x80 + && (*pIter++)&0x80 ){ pIter++; } + testcase( nSize==pPage->maxLocal ); + testcase( nSize==(u32)pPage->maxLocal+1 ); + if( nSize<=pPage->maxLocal ){ + nSize += (u32)(pIter - pCell); + if( nSize<4 ) nSize = 4; + }else{ + int minLocal = pPage->minLocal; + nSize = minLocal + (nSize - minLocal) % (pPage->pBt->usableSize - 4); + testcase( nSize==pPage->maxLocal ); + testcase( nSize==(u32)pPage->maxLocal+1 ); + if( nSize>pPage->maxLocal ){ + nSize = minLocal; + } + nSize += 4 + (u16)(pIter - pCell); + } + assert( nSize==debuginfo.nSize || CORRUPT_DB ); + return (u16)nSize; +} #ifdef SQLITE_DEBUG @@ -67568,7 +71654,7 @@ static u16 cellSize(MemPage *pPage, int iCell){ #ifndef SQLITE_OMIT_AUTOVACUUM /* ** The cell pCell is currently part of page pSrc but will ultimately be part -** of pPage. (pSrc and pPager are often the same.) If pCell contains a +** of pPage. (pSrc and pPage are often the same.) If pCell contains a ** pointer to an overflow page, insert an entry into the pointer-map for ** the overflow page that will be valid after pCell has been moved to pPage. */ @@ -67579,7 +71665,7 @@ static void ptrmapPutOvflPtr(MemPage *pPage, MemPage *pSrc, u8 *pCell,int *pRC){ pPage->xParseCell(pPage, pCell, &info); if( info.nLocal<info.nPayload ){ Pgno ovfl; - if( SQLITE_WITHIN(pSrc->aDataEnd, pCell, pCell+info.nLocal) ){ + if( SQLITE_OVERFLOW(pSrc->aDataEnd, pCell, pCell+info.nLocal) ){ testcase( pSrc!=pPage ); *pRC = SQLITE_CORRUPT_BKPT; return; @@ -67624,8 +71710,7 @@ static int defragmentPage(MemPage *pPage, int nMaxFrag){ assert( pPage->pBt->usableSize <= SQLITE_MAX_PAGE_SIZE ); assert( pPage->nOverflow==0 ); assert( sqlite3_mutex_held(pPage->pBt->mutex) ); - temp = 0; - src = data = pPage->aData; + data = pPage->aData; hdr = pPage->hdrOffset; cellOffset = pPage->cellOffset; nCell = pPage->nCell; @@ -67659,7 +71744,7 @@ static int defragmentPage(MemPage *pPage, int nMaxFrag){ if( iFree2+sz2 > usableSize ) return SQLITE_CORRUPT_PAGE(pPage); memmove(&data[iFree+sz+sz2], &data[iFree+sz], iFree2-(iFree+sz)); sz += sz2; - }else if( NEVER(iFree+sz>usableSize) ){ + }else if( iFree+sz>usableSize ){ return SQLITE_CORRUPT_PAGE(pPage); } @@ -67679,39 +71764,38 @@ static int defragmentPage(MemPage *pPage, int nMaxFrag){ cbrk = usableSize; iCellLast = usableSize - 4; iCellStart = get2byte(&data[hdr+5]); - for(i=0; i<nCell; i++){ - u8 *pAddr; /* The i-th cell pointer */ - pAddr = &data[cellOffset + i*2]; - pc = get2byte(pAddr); - testcase( pc==iCellFirst ); - testcase( pc==iCellLast ); - /* These conditions have already been verified in btreeInitPage() - ** if PRAGMA cell_size_check=ON. - */ - if( pc<iCellStart || pc>iCellLast ){ - return SQLITE_CORRUPT_PAGE(pPage); - } - assert( pc>=iCellStart && pc<=iCellLast ); - size = pPage->xCellSize(pPage, &src[pc]); - cbrk -= size; - if( cbrk<iCellStart || pc+size>usableSize ){ - return SQLITE_CORRUPT_PAGE(pPage); - } - assert( cbrk+size<=usableSize && cbrk>=iCellStart ); - testcase( cbrk+size==usableSize ); - testcase( pc+size==usableSize ); - put2byte(pAddr, cbrk); - if( temp==0 ){ - if( cbrk==pc ) continue; - temp = sqlite3PagerTempSpace(pPage->pBt->pPager); - memcpy(&temp[iCellStart], &data[iCellStart], usableSize - iCellStart); - src = temp; + if( nCell>0 ){ + temp = sqlite3PagerTempSpace(pPage->pBt->pPager); + memcpy(temp, data, usableSize); + src = temp; + for(i=0; i<nCell; i++){ + u8 *pAddr; /* The i-th cell pointer */ + pAddr = &data[cellOffset + i*2]; + pc = get2byte(pAddr); + testcase( pc==iCellFirst ); + testcase( pc==iCellLast ); + /* These conditions have already been verified in btreeInitPage() + ** if PRAGMA cell_size_check=ON. + */ + if( pc>iCellLast ){ + return SQLITE_CORRUPT_PAGE(pPage); + } + assert( pc>=0 && pc<=iCellLast ); + size = pPage->xCellSize(pPage, &src[pc]); + cbrk -= size; + if( cbrk<iCellStart || pc+size>usableSize ){ + return SQLITE_CORRUPT_PAGE(pPage); + } + assert( cbrk+size<=usableSize && cbrk>=iCellStart ); + testcase( cbrk+size==usableSize ); + testcase( pc+size==usableSize ); + put2byte(pAddr, cbrk); + memcpy(&data[cbrk], &src[pc], size); } - memcpy(&data[cbrk], &src[pc], size); } data[hdr+7] = 0; - defragment_out: +defragment_out: assert( pPage->nFree>=0 ); if( data[hdr+7]+cbrk-iCellFirst!=pPage->nFree ){ return SQLITE_CORRUPT_PAGE(pPage); @@ -67743,7 +71827,8 @@ static u8 *pageFindSlot(MemPage *pPg, int nByte, int *pRc){ const int hdr = pPg->hdrOffset; /* Offset to page header */ u8 * const aData = pPg->aData; /* Page data */ int iAddr = hdr + 1; /* Address of ptr to pc */ - int pc = get2byte(&aData[iAddr]); /* Address of a free slot */ + u8 *pTmp = &aData[iAddr]; /* Temporary ptr into aData[] */ + int pc = get2byte(pTmp); /* Address of a free slot */ int x; /* Excess size of the slot */ int maxPC = pPg->pBt->usableSize - nByte; /* Max address for a usable slot */ int size; /* Size of the free slot */ @@ -67753,7 +71838,8 @@ static u8 *pageFindSlot(MemPage *pPg, int nByte, int *pRc){ /* EVIDENCE-OF: R-22710-53328 The third and fourth bytes of each ** freeblock form a big-endian integer which is the size of the freeblock ** in bytes, including the 4-byte header. */ - size = get2byte(&aData[pc+2]); + pTmp = &aData[pc+2]; + size = get2byte(pTmp); if( (x = size - nByte)>=0 ){ testcase( x==4 ); testcase( x==3 ); @@ -67766,7 +71852,6 @@ static u8 *pageFindSlot(MemPage *pPg, int nByte, int *pRc){ ** fragmented bytes within the page. */ memcpy(&aData[iAddr], &aData[pc], 2); aData[hdr+7] += (u8)x; - testcase( pc+x>maxPC ); return &aData[pc]; }else if( x+pc > maxPC ){ /* This slot extends off the end of the usable part of the page */ @@ -67780,10 +71865,11 @@ static u8 *pageFindSlot(MemPage *pPg, int nByte, int *pRc){ return &aData[pc + x]; } iAddr = pc; - pc = get2byte(&aData[pc]); - if( pc<=iAddr+size ){ + pTmp = &aData[pc]; + pc = get2byte(pTmp); + if( pc<=iAddr ){ if( pc ){ - /* The next slot in the chain is not past the end of the current slot */ + /* The next slot in the chain comes before the current slot */ *pRc = SQLITE_CORRUPT_PAGE(pPg); } return 0; @@ -67809,11 +71895,12 @@ static u8 *pageFindSlot(MemPage *pPg, int nByte, int *pRc){ ** allocation is being made in order to insert a new cell, so we will ** also end up needing a new cell pointer. */ -static int allocateSpace(MemPage *pPage, int nByte, int *pIdx){ +static SQLITE_INLINE int allocateSpace(MemPage *pPage, int nByte, int *pIdx){ const int hdr = pPage->hdrOffset; /* Local cache of pPage->hdrOffset */ u8 * const data = pPage->aData; /* Local cache of pPage->aData */ int top; /* First byte of cell content area */ int rc = SQLITE_OK; /* Integer return code */ + u8 *pTmp; /* Temp ptr into data[] */ int gap; /* First byte of gap between cell pointers and cell content */ assert( sqlite3PagerIswriteable(pPage->pDbPage) ); @@ -67832,14 +71919,16 @@ static int allocateSpace(MemPage *pPage, int nByte, int *pIdx){ ** then the cell content offset of an empty page wants to be 65536. ** However, that integer is too large to be stored in a 2-byte unsigned ** integer, so a value of 0 is used in its place. */ - top = get2byte(&data[hdr+5]); - assert( top<=(int)pPage->pBt->usableSize ); /* by btreeComputeFreeSpace() */ + pTmp = &data[hdr+5]; + top = get2byte(pTmp); if( gap>top ){ if( top==0 && pPage->pBt->usableSize==65536 ){ top = 65536; }else{ return SQLITE_CORRUPT_PAGE(pPage); } + }else if( top>(int)pPage->pBt->usableSize ){ + return SQLITE_CORRUPT_PAGE(pPage); } /* If there is enough space between gap and top for one more cell pointer, @@ -67901,7 +71990,7 @@ static int allocateSpace(MemPage *pPage, int nByte, int *pIdx){ ** ** Even though the freeblock list was checked by btreeComputeFreeSpace(), ** that routine will not detect overlap between cells or freeblocks. Nor -** does it detect cells or freeblocks that encrouch into the reserved bytes +** does it detect cells or freeblocks that encroach into the reserved bytes ** at the end of the page. So do additional corruption checks inside this ** routine and return SQLITE_CORRUPT if any problems are found. */ @@ -67914,6 +72003,7 @@ static int freeSpace(MemPage *pPage, u16 iStart, u16 iSize){ u16 x; /* Offset to cell content area */ u32 iEnd = iStart + iSize; /* First byte past the iStart buffer */ unsigned char *data = pPage->aData; /* Page content */ + u8 *pTmp; /* Temporary ptr into data[] */ assert( pPage->pBt!=0 ); assert( sqlite3PagerIswriteable(pPage->pDbPage) ); @@ -67921,7 +72011,7 @@ static int freeSpace(MemPage *pPage, u16 iStart, u16 iSize){ assert( CORRUPT_DB || iEnd <= pPage->pBt->usableSize ); assert( sqlite3_mutex_held(pPage->pBt->mutex) ); assert( iSize>=4 ); /* Minimum cell size is 4 */ - assert( iStart<=pPage->pBt->usableSize-4 ); + assert( CORRUPT_DB || iStart<=pPage->pBt->usableSize-4 ); /* The list of freeblocks must be in ascending order. Find the ** spot on the list where iStart should be inserted. @@ -67932,7 +72022,7 @@ static int freeSpace(MemPage *pPage, u16 iStart, u16 iSize){ iFreeBlk = 0; /* Shortcut for the case when the freelist is empty */ }else{ while( (iFreeBlk = get2byte(&data[iPtr]))<iStart ){ - if( iFreeBlk<iPtr+4 ){ + if( iFreeBlk<=iPtr ){ if( iFreeBlk==0 ) break; /* TH3: corrupt082.100 */ return SQLITE_CORRUPT_PAGE(pPage); } @@ -67976,7 +72066,13 @@ static int freeSpace(MemPage *pPage, u16 iStart, u16 iSize){ if( nFrag>data[hdr+7] ) return SQLITE_CORRUPT_PAGE(pPage); data[hdr+7] -= nFrag; } - x = get2byte(&data[hdr+5]); + pTmp = &data[hdr+5]; + x = get2byte(pTmp); + if( pPage->pBt->btsFlags & BTS_FAST_SECURE ){ + /* Overwrite deleted information with zeros when the secure_delete + ** option is enabled */ + memset(&data[iStart], 0, iSize); + } if( iStart<=x ){ /* The new freeblock is at the beginning of the cell content area, ** so just extend the cell content area rather than create another @@ -67988,14 +72084,9 @@ static int freeSpace(MemPage *pPage, u16 iStart, u16 iSize){ }else{ /* Insert the new freeblock into the freelist */ put2byte(&data[iPtr], iStart); + put2byte(&data[iStart], iFreeBlk); + put2byte(&data[iStart+2], iSize); } - if( pPage->pBt->btsFlags & BTS_FAST_SECURE ){ - /* Overwrite deleted information with zeros when the secure_delete - ** option is enabled */ - memset(&data[iStart], 0, iSize); - } - put2byte(&data[iStart], iFreeBlk); - put2byte(&data[iStart+2], iSize); pPage->nFree += iOrigSize; return SQLITE_OK; } @@ -68007,57 +72098,67 @@ static int freeSpace(MemPage *pPage, u16 iStart, u16 iSize){ ** Only the following combinations are supported. Anything different ** indicates a corrupt database files: ** -** PTF_ZERODATA -** PTF_ZERODATA | PTF_LEAF -** PTF_LEAFDATA | PTF_INTKEY -** PTF_LEAFDATA | PTF_INTKEY | PTF_LEAF +** PTF_ZERODATA (0x02, 2) +** PTF_LEAFDATA | PTF_INTKEY (0x05, 5) +** PTF_ZERODATA | PTF_LEAF (0x0a, 10) +** PTF_LEAFDATA | PTF_INTKEY | PTF_LEAF (0x0d, 13) */ static int decodeFlags(MemPage *pPage, int flagByte){ BtShared *pBt; /* A copy of pPage->pBt */ assert( pPage->hdrOffset==(pPage->pgno==1 ? 100 : 0) ); assert( sqlite3_mutex_held(pPage->pBt->mutex) ); - pPage->leaf = (u8)(flagByte>>3); assert( PTF_LEAF == 1<<3 ); - flagByte &= ~PTF_LEAF; - pPage->childPtrSize = 4-4*pPage->leaf; - pPage->xCellSize = cellSizePtr; pBt = pPage->pBt; - if( flagByte==(PTF_LEAFDATA | PTF_INTKEY) ){ - /* EVIDENCE-OF: R-07291-35328 A value of 5 (0x05) means the page is an - ** interior table b-tree page. */ - assert( (PTF_LEAFDATA|PTF_INTKEY)==5 ); - /* EVIDENCE-OF: R-26900-09176 A value of 13 (0x0d) means the page is a - ** leaf table b-tree page. */ - assert( (PTF_LEAFDATA|PTF_INTKEY|PTF_LEAF)==13 ); - pPage->intKey = 1; - if( pPage->leaf ){ + pPage->max1bytePayload = pBt->max1bytePayload; + if( flagByte>=(PTF_ZERODATA | PTF_LEAF) ){ + pPage->childPtrSize = 0; + pPage->leaf = 1; + if( flagByte==(PTF_LEAFDATA | PTF_INTKEY | PTF_LEAF) ){ pPage->intKeyLeaf = 1; + pPage->xCellSize = cellSizePtrTableLeaf; pPage->xParseCell = btreeParseCellPtr; + pPage->intKey = 1; + pPage->maxLocal = pBt->maxLeaf; + pPage->minLocal = pBt->minLeaf; + }else if( flagByte==(PTF_ZERODATA | PTF_LEAF) ){ + pPage->intKey = 0; + pPage->intKeyLeaf = 0; + pPage->xCellSize = cellSizePtrIdxLeaf; + pPage->xParseCell = btreeParseCellPtrIndex; + pPage->maxLocal = pBt->maxLocal; + pPage->minLocal = pBt->minLocal; }else{ + pPage->intKey = 0; + pPage->intKeyLeaf = 0; + pPage->xCellSize = cellSizePtrIdxLeaf; + pPage->xParseCell = btreeParseCellPtrIndex; + return SQLITE_CORRUPT_PAGE(pPage); + } + }else{ + pPage->childPtrSize = 4; + pPage->leaf = 0; + if( flagByte==(PTF_ZERODATA) ){ + pPage->intKey = 0; + pPage->intKeyLeaf = 0; + pPage->xCellSize = cellSizePtr; + pPage->xParseCell = btreeParseCellPtrIndex; + pPage->maxLocal = pBt->maxLocal; + pPage->minLocal = pBt->minLocal; + }else if( flagByte==(PTF_LEAFDATA | PTF_INTKEY) ){ pPage->intKeyLeaf = 0; pPage->xCellSize = cellSizePtrNoPayload; pPage->xParseCell = btreeParseCellPtrNoPayload; + pPage->intKey = 1; + pPage->maxLocal = pBt->maxLeaf; + pPage->minLocal = pBt->minLeaf; + }else{ + pPage->intKey = 0; + pPage->intKeyLeaf = 0; + pPage->xCellSize = cellSizePtr; + pPage->xParseCell = btreeParseCellPtrIndex; + return SQLITE_CORRUPT_PAGE(pPage); } - pPage->maxLocal = pBt->maxLeaf; - pPage->minLocal = pBt->minLeaf; - }else if( flagByte==PTF_ZERODATA ){ - /* EVIDENCE-OF: R-43316-37308 A value of 2 (0x02) means the page is an - ** interior index b-tree page. */ - assert( (PTF_ZERODATA)==2 ); - /* EVIDENCE-OF: R-59615-42828 A value of 10 (0x0a) means the page is a - ** leaf index b-tree page. */ - assert( (PTF_ZERODATA|PTF_LEAF)==10 ); - pPage->intKey = 0; - pPage->intKeyLeaf = 0; - pPage->xParseCell = btreeParseCellPtrIndex; - pPage->maxLocal = pBt->maxLocal; - pPage->minLocal = pBt->minLocal; - }else{ - /* EVIDENCE-OF: R-47608-56469 Any other value for the b-tree page type is - ** an error. */ - return SQLITE_CORRUPT_PAGE(pPage); } - pPage->max1bytePayload = pBt->max1bytePayload; return SQLITE_OK; } @@ -68348,68 +72449,41 @@ SQLITE_PRIVATE Pgno sqlite3BtreeLastPage(Btree *p){ /* ** Get a page from the pager and initialize it. -** -** If pCur!=0 then the page is being fetched as part of a moveToChild() -** call. Do additional sanity checking on the page in this case. -** And if the fetch fails, this routine must decrement pCur->iPage. -** -** The page is fetched as read-write unless pCur is not NULL and is -** a read-only cursor. -** -** If an error occurs, then *ppPage is undefined. It -** may remain unchanged, or it may be set to an invalid value. */ static int getAndInitPage( BtShared *pBt, /* The database file */ Pgno pgno, /* Number of the page to get */ MemPage **ppPage, /* Write the page pointer here */ - BtCursor *pCur, /* Cursor to receive the page, or NULL */ int bReadOnly /* True for a read-only page */ ){ int rc; DbPage *pDbPage; + MemPage *pPage; assert( sqlite3_mutex_held(pBt->mutex) ); - assert( pCur==0 || ppPage==&pCur->pPage ); - assert( pCur==0 || bReadOnly==pCur->curPagerFlags ); - assert( pCur==0 || pCur->iPage>0 ); if( pgno>btreePagecount(pBt) ){ - rc = SQLITE_CORRUPT_BKPT; - goto getAndInitPage_error1; + *ppPage = 0; + return SQLITE_CORRUPT_BKPT; } rc = sqlite3PagerGet(pBt->pPager, pgno, (DbPage**)&pDbPage, bReadOnly); if( rc ){ - goto getAndInitPage_error1; + *ppPage = 0; + return rc; } - *ppPage = (MemPage*)sqlite3PagerGetExtra(pDbPage); - if( (*ppPage)->isInit==0 ){ + pPage = (MemPage*)sqlite3PagerGetExtra(pDbPage); + if( pPage->isInit==0 ){ btreePageFromDbPage(pDbPage, pgno, pBt); - rc = btreeInitPage(*ppPage); + rc = btreeInitPage(pPage); if( rc!=SQLITE_OK ){ - goto getAndInitPage_error2; + releasePage(pPage); + *ppPage = 0; + return rc; } } - assert( (*ppPage)->pgno==pgno || CORRUPT_DB ); - assert( (*ppPage)->aData==sqlite3PagerGetData(pDbPage) ); - - /* If obtaining a child page for a cursor, we must verify that the page is - ** compatible with the root page. */ - if( pCur && ((*ppPage)->nCell<1 || (*ppPage)->intKey!=pCur->curIntKey) ){ - rc = SQLITE_CORRUPT_PGNO(pgno); - goto getAndInitPage_error2; - } + assert( pPage->pgno==pgno || CORRUPT_DB ); + assert( pPage->aData==sqlite3PagerGetData(pDbPage) ); + *ppPage = pPage; return SQLITE_OK; - -getAndInitPage_error2: - releasePage(*ppPage); -getAndInitPage_error1: - if( pCur ){ - pCur->iPage--; - pCur->pPage = pCur->apPage[pCur->iPage]; - } - testcase( pgno==0 ); - assert( pgno!=0 || rc==SQLITE_CORRUPT ); - return rc; } /* @@ -68492,7 +72566,7 @@ static void pageReinit(DbPage *pData){ ** call to btreeInitPage() will likely return SQLITE_CORRUPT. ** But no harm is done by this. And it is very important that ** btreeInitPage() be called on every btree page so we make - ** the call for every page that comes in for re-initing. */ + ** the call for every page that comes in for re-initializing. */ btreeInitPage(pPage); } } @@ -68671,6 +72745,9 @@ SQLITE_PRIVATE int sqlite3BtreeOpen( assert( sizeof(u16)==2 ); assert( sizeof(Pgno)==4 ); + /* Suppress false-positive compiler warning from PVS-Studio */ + memset(&zDbHeader[16], 0, 8); + pBt = sqlite3MallocZero( sizeof(*pBt) ); if( pBt==0 ){ rc = SQLITE_NOMEM_BKPT; @@ -68887,7 +72964,7 @@ static SQLITE_NOINLINE int allocateTempSpace(BtShared *pBt){ ** can mean that fillInCell() only initializes the first 2 or 3 ** bytes of pTmpSpace, but that the first 4 bytes are copied from ** it into a database page. This is not actually a problem, but it - ** does cause a valgrind error when the 1 or 2 bytes of unitialized + ** does cause a valgrind error when the 1 or 2 bytes of uninitialized ** data is passed to system call write(). So to avoid this error, ** zero the first 4 bytes of temp space here. ** @@ -69122,7 +73199,7 @@ SQLITE_PRIVATE int sqlite3BtreeGetReserveNoMutex(Btree *p){ /* ** Return the number of bytes of space at the end of every page that -** are intentually left unused. This is the "reserved" space that is +** are intentionally left unused. This is the "reserved" space that is ** sometimes used by extensions. ** ** The value returned is the larger of the current reserve size and @@ -69369,7 +73446,6 @@ static int lockBtree(BtShared *pBt){ ){ goto page1_init_failed; } - pBt->btsFlags |= BTS_PAGESIZE_FIXED; assert( (pageSize & 7)==0 ); /* EVIDENCE-OF: R-59310-51205 The "reserved space" size in the 1-byte ** integer at offset 20 is the number of bytes of space at the end of @@ -69389,6 +73465,7 @@ static int lockBtree(BtShared *pBt){ releasePageOne(pPage1); pBt->usableSize = usableSize; pBt->pageSize = pageSize; + pBt->btsFlags |= BTS_PAGESIZE_FIXED; freeTempSpace(pBt); rc = sqlite3PagerSetPagesize(pBt->pPager, &pBt->pageSize, pageSize-usableSize); @@ -69408,6 +73485,7 @@ static int lockBtree(BtShared *pBt){ if( usableSize<480 ){ goto page1_init_failed; } + pBt->btsFlags |= BTS_PAGESIZE_FIXED; pBt->pageSize = pageSize; pBt->usableSize = usableSize; #ifndef SQLITE_OMIT_AUTOVACUUM @@ -69586,7 +73664,11 @@ SQLITE_PRIVATE int sqlite3BtreeNewDb(Btree *p){ ** when A already has a read lock, we encourage A to give up and let B ** proceed. */ -SQLITE_PRIVATE int sqlite3BtreeBeginTrans(Btree *p, int wrflag, int *pSchemaVersion){ +static SQLITE_NOINLINE int btreeBeginTrans( + Btree *p, /* The btree in which to start the transaction */ + int wrflag, /* True to start a write transaction */ + int *pSchemaVersion /* Put schema version number here, if not NULL */ +){ BtShared *pBt = p->pBt; Pager *pPager = pBt->pPager; int rc = SQLITE_OK; @@ -69758,6 +73840,28 @@ trans_begun: sqlite3BtreeLeave(p); return rc; } +SQLITE_PRIVATE int sqlite3BtreeBeginTrans(Btree *p, int wrflag, int *pSchemaVersion){ + BtShared *pBt; + if( p->sharable + || p->inTrans==TRANS_NONE + || (p->inTrans==TRANS_READ && wrflag!=0) + ){ + return btreeBeginTrans(p,wrflag,pSchemaVersion); + } + pBt = p->pBt; + if( pSchemaVersion ){ + *pSchemaVersion = get4byte(&pBt->pPage1->aData[40]); + } + if( wrflag ){ + /* This call makes sure that the pager has the correct number of + ** open savepoints. If the second parameter is greater than 0 and + ** the sub-journal is not already open, then it will be opened here. + */ + return sqlite3PagerOpenSavepoint(pBt->pPager, p->db->nSavepoint); + }else{ + return SQLITE_OK; + } +} #ifndef SQLITE_OMIT_AUTOVACUUM @@ -69844,6 +73948,9 @@ static int modifyPagePointer(MemPage *pPage, Pgno iFrom, Pgno iTo, u8 eType){ } } }else{ + if( pCell+4 > pPage->aData+pPage->pBt->usableSize ){ + return SQLITE_CORRUPT_PAGE(pPage); + } if( get4byte(pCell)==iFrom ){ put4byte(pCell, iTo); break; @@ -69892,7 +73999,7 @@ static int relocatePage( if( iDbPage<3 ) return SQLITE_CORRUPT_BKPT; /* Move page iDbPage from its current location to page number iFreePage */ - TRACE(("AUTOVACUUM: Moving %d to free page %d (ptr page %d type %d)\n", + TRACE(("AUTOVACUUM: Moving %u to free page %u (ptr page %u type %u)\n", iDbPage, iFreePage, iPtrPage, eType)); rc = sqlite3PagerMovepage(pPager, pDbPage->pDbPage, iFreePage, isCommit); if( rc!=SQLITE_OK ){ @@ -70030,12 +74137,17 @@ static int incrVacuumStep(BtShared *pBt, Pgno nFin, Pgno iLastPg, int bCommit){ } do { MemPage *pFreePg; + Pgno dbSize = btreePagecount(pBt); rc = allocateBtreePage(pBt, &pFreePg, &iFreePg, iNear, eMode); if( rc!=SQLITE_OK ){ releasePage(pLastPg); return rc; } releasePage(pFreePg); + if( iFreePg>dbSize ){ + releasePage(pLastPg); + return SQLITE_CORRUPT_BKPT; + } }while( bCommit && iFreePg>nFin ); assert( iFreePg<iLastPg ); @@ -70845,7 +74957,6 @@ SQLITE_PRIVATE void sqlite3BtreeCursorUnpin(BtCursor *pCur){ pCur->curFlags &= ~BTCF_Pinned; } -#ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC /* ** Return the offset into the database file for the start of the ** payload to which the cursor is pointing. @@ -70857,7 +74968,6 @@ SQLITE_PRIVATE i64 sqlite3BtreeOffset(BtCursor *pCur){ return (i64)pCur->pBt->pageSize*((i64)pCur->pPage->pgno - 1) + (i64)(pCur->info.pPayload - pCur->pPage->aData); } -#endif /* SQLITE_ENABLE_OFFSET_SQL_FUNC */ /* ** Return the number of bytes of payload for the entry that pCur is @@ -70883,7 +74993,7 @@ SQLITE_PRIVATE u32 sqlite3BtreePayloadSize(BtCursor *pCur){ ** routine always returns 2147483647 (which is the largest record ** that SQLite can handle) or more. But returning a smaller value might ** prevent large memory allocations when trying to interpret a -** corrupt datrabase. +** corrupt database. ** ** The current implementation merely returns the size of the underlying ** database file. @@ -71183,7 +75293,6 @@ static int accessPayload( assert( aWrite>=pBufStart ); /* due to (6) */ memcpy(aSave, aWrite, 4); rc = sqlite3OsRead(fd, aWrite, a+4, (i64)pBt->pageSize*(nextPage-1)); - if( rc && nextPage>pBt->nPage ) rc = SQLITE_CORRUPT_BKPT; nextPage = get4byte(aWrite); memcpy(aWrite, aSave, 4); }else @@ -71345,8 +75454,7 @@ SQLITE_PRIVATE const void *sqlite3BtreePayloadFetch(BtCursor *pCur, u32 *pAmt){ ** vice-versa). */ static int moveToChild(BtCursor *pCur, u32 newPgno){ - BtShared *pBt = pCur->pBt; - + int rc; assert( cursorOwnsBtShared(pCur) ); assert( pCur->eState==CURSOR_VALID ); assert( pCur->iPage<BTCURSOR_MAX_DEPTH ); @@ -71360,7 +75468,18 @@ static int moveToChild(BtCursor *pCur, u32 newPgno){ pCur->apPage[pCur->iPage] = pCur->pPage; pCur->ix = 0; pCur->iPage++; - return getAndInitPage(pBt, newPgno, &pCur->pPage, pCur, pCur->curPagerFlags); + rc = getAndInitPage(pCur->pBt, newPgno, &pCur->pPage, pCur->curPagerFlags); + assert( pCur->pPage!=0 || rc!=SQLITE_OK ); + if( rc==SQLITE_OK + && (pCur->pPage->nCell<1 || pCur->pPage->intKey!=pCur->curIntKey) + ){ + releasePage(pCur->pPage); + rc = SQLITE_CORRUPT_PGNO(newPgno); + } + if( rc ){ + pCur->pPage = pCur->apPage[--pCur->iPage]; + } + return rc; } #ifdef SQLITE_DEBUG @@ -71466,8 +75585,8 @@ static int moveToRoot(BtCursor *pCur){ } sqlite3BtreeClearCursor(pCur); } - rc = getAndInitPage(pCur->pBtree->pBt, pCur->pgnoRoot, &pCur->pPage, - 0, pCur->curPagerFlags); + rc = getAndInitPage(pCur->pBt, pCur->pgnoRoot, &pCur->pPage, + pCur->curPagerFlags); if( rc!=SQLITE_OK ){ pCur->eState = CURSOR_INVALID; return rc; @@ -71579,7 +75698,7 @@ SQLITE_PRIVATE int sqlite3BtreeFirst(BtCursor *pCur, int *pRes){ *pRes = 0; rc = moveToLeftmost(pCur); }else if( rc==SQLITE_EMPTY ){ - assert( pCur->pgnoRoot==0 || pCur->pPage->nCell==0 ); + assert( pCur->pgnoRoot==0 || (pCur->pPage!=0 && pCur->pPage->nCell==0) ); *pRes = 1; rc = SQLITE_OK; } @@ -71590,9 +75709,25 @@ SQLITE_PRIVATE int sqlite3BtreeFirst(BtCursor *pCur, int *pRes){ ** on success. Set *pRes to 0 if the cursor actually points to something ** or set *pRes to 1 if the table is empty. */ +static SQLITE_NOINLINE int btreeLast(BtCursor *pCur, int *pRes){ + int rc = moveToRoot(pCur); + if( rc==SQLITE_OK ){ + assert( pCur->eState==CURSOR_VALID ); + *pRes = 0; + rc = moveToRightmost(pCur); + if( rc==SQLITE_OK ){ + pCur->curFlags |= BTCF_AtLast; + }else{ + pCur->curFlags &= ~BTCF_AtLast; + } + }else if( rc==SQLITE_EMPTY ){ + assert( pCur->pgnoRoot==0 || pCur->pPage->nCell==0 ); + *pRes = 1; + rc = SQLITE_OK; + } + return rc; +} SQLITE_PRIVATE int sqlite3BtreeLast(BtCursor *pCur, int *pRes){ - int rc; - assert( cursorOwnsBtShared(pCur) ); assert( sqlite3_mutex_held(pCur->pBtree->db->mutex) ); @@ -71613,23 +75748,7 @@ SQLITE_PRIVATE int sqlite3BtreeLast(BtCursor *pCur, int *pRes){ *pRes = 0; return SQLITE_OK; } - - rc = moveToRoot(pCur); - if( rc==SQLITE_OK ){ - assert( pCur->eState==CURSOR_VALID ); - *pRes = 0; - rc = moveToRightmost(pCur); - if( rc==SQLITE_OK ){ - pCur->curFlags |= BTCF_AtLast; - }else{ - pCur->curFlags &= ~BTCF_AtLast; - } - }else if( rc==SQLITE_EMPTY ){ - assert( pCur->pgnoRoot==0 || pCur->pPage->nCell==0 ); - *pRes = 1; - rc = SQLITE_OK; - } - return rc; + return btreeLast(pCur, pRes); } /* Move the cursor so that it points to an entry in a table (a.k.a INTKEY) @@ -71684,7 +75803,7 @@ SQLITE_PRIVATE int sqlite3BtreeTableMoveto( /* If the requested key is one more than the previous key, then ** try to get there using sqlite3BtreeNext() rather than a full ** binary search. This is an optimization only. The correct answer - ** is still obtained without this case, only a little more slowely */ + ** is still obtained without this case, only a little more slowly. */ if( pCur->info.nKey+1==intKey ){ *pRes = 0; rc = sqlite3BtreeNext(pCur, 0); @@ -71797,6 +75916,69 @@ moveto_table_finish: return rc; } +/* +** Compare the "idx"-th cell on the page the cursor pCur is currently +** pointing to to pIdxKey using xRecordCompare. Return negative or +** zero if the cell is less than or equal pIdxKey. Return positive +** if unknown. +** +** Return value negative: Cell at pCur[idx] less than pIdxKey +** +** Return value is zero: Cell at pCur[idx] equals pIdxKey +** +** Return value positive: Nothing is known about the relationship +** of the cell at pCur[idx] and pIdxKey. +** +** This routine is part of an optimization. It is always safe to return +** a positive value as that will cause the optimization to be skipped. +*/ +static int indexCellCompare( + BtCursor *pCur, + int idx, + UnpackedRecord *pIdxKey, + RecordCompare xRecordCompare +){ + MemPage *pPage = pCur->pPage; + int c; + int nCell; /* Size of the pCell cell in bytes */ + u8 *pCell = findCellPastPtr(pPage, idx); + + nCell = pCell[0]; + if( nCell<=pPage->max1bytePayload ){ + /* This branch runs if the record-size field of the cell is a + ** single byte varint and the record fits entirely on the main + ** b-tree page. */ + testcase( pCell+nCell+1==pPage->aDataEnd ); + c = xRecordCompare(nCell, (void*)&pCell[1], pIdxKey); + }else if( !(pCell[1] & 0x80) + && (nCell = ((nCell&0x7f)<<7) + pCell[1])<=pPage->maxLocal + ){ + /* The record-size field is a 2 byte varint and the record + ** fits entirely on the main b-tree page. */ + testcase( pCell+nCell+2==pPage->aDataEnd ); + c = xRecordCompare(nCell, (void*)&pCell[2], pIdxKey); + }else{ + /* If the record extends into overflow pages, do not attempt + ** the optimization. */ + c = 99; + } + return c; +} + +/* +** Return true (non-zero) if pCur is current pointing to the last +** page of a table. +*/ +static int cursorOnLastPage(BtCursor *pCur){ + int i; + assert( pCur->eState==CURSOR_VALID ); + for(i=0; i<pCur->iPage; i++){ + MemPage *pPage = pCur->apPage[i]; + if( pCur->aiIdx[i]<pPage->nCell ) return 0; + } + return 1; +} + /* Move the cursor so that it points to an entry in an index table ** near the key pIdxKey. Return a success code. ** @@ -71847,6 +76029,43 @@ SQLITE_PRIVATE int sqlite3BtreeIndexMoveto( || pIdxKey->default_rc==-1 ); + + /* Check to see if we can skip a lot of work. Two cases: + ** + ** (1) If the cursor is already pointing to the very last cell + ** in the table and the pIdxKey search key is greater than or + ** equal to that last cell, then no movement is required. + ** + ** (2) If the cursor is on the last page of the table and the first + ** cell on that last page is less than or equal to the pIdxKey + ** search key, then we can start the search on the current page + ** without needing to go back to root. + */ + if( pCur->eState==CURSOR_VALID + && pCur->pPage->leaf + && cursorOnLastPage(pCur) + ){ + int c; + if( pCur->ix==pCur->pPage->nCell-1 + && (c = indexCellCompare(pCur, pCur->ix, pIdxKey, xRecordCompare))<=0 + && pIdxKey->errCode==SQLITE_OK + ){ + *pRes = c; + return SQLITE_OK; /* Cursor already pointing at the correct spot */ + } + if( pCur->iPage>0 + && indexCellCompare(pCur, 0, pIdxKey, xRecordCompare)<=0 + && pIdxKey->errCode==SQLITE_OK + ){ + pCur->curFlags &= ~BTCF_ValidOvfl; + if( !pCur->pPage->isInit ){ + return SQLITE_CORRUPT_BKPT; + } + goto bypass_moveto_root; /* Start search on the current page */ + } + pIdxKey->errCode = SQLITE_OK; + } + rc = moveToRoot(pCur); if( rc ){ if( rc==SQLITE_EMPTY ){ @@ -71856,12 +76075,14 @@ SQLITE_PRIVATE int sqlite3BtreeIndexMoveto( } return rc; } + +bypass_moveto_root: assert( pCur->pPage ); assert( pCur->pPage->isInit ); assert( pCur->eState==CURSOR_VALID ); assert( pCur->pPage->nCell > 0 ); - assert( pCur->iPage==0 || pCur->apPage[0]->intKey==pCur->curIntKey ); - assert( pCur->curIntKey || pIdxKey ); + assert( pCur->curIntKey==0 ); + assert( pIdxKey!=0 ); for(;;){ int lwr, upr, idx, c; Pgno chldPg; @@ -71875,7 +76096,7 @@ SQLITE_PRIVATE int sqlite3BtreeIndexMoveto( ** be the right kind (index or table) of b-tree page. Otherwise ** a moveToChild() or moveToRoot() call would have detected corruption. */ assert( pPage->nCell>0 ); - assert( pPage->intKey==(pIdxKey==0) ); + assert( pPage->intKey==0 ); lwr = 0; upr = pPage->nCell-1; idx = upr>>1; /* idx = (lwr+upr)/2; */ @@ -71978,10 +76199,36 @@ SQLITE_PRIVATE int sqlite3BtreeIndexMoveto( }else{ chldPg = get4byte(findCell(pPage, lwr)); } - pCur->ix = (u16)lwr; - rc = moveToChild(pCur, chldPg); - if( rc ) break; - } + + /* This block is similar to an in-lined version of: + ** + ** pCur->ix = (u16)lwr; + ** rc = moveToChild(pCur, chldPg); + ** if( rc ) break; + */ + pCur->info.nSize = 0; + pCur->curFlags &= ~(BTCF_ValidNKey|BTCF_ValidOvfl); + if( pCur->iPage>=(BTCURSOR_MAX_DEPTH-1) ){ + return SQLITE_CORRUPT_BKPT; + } + pCur->aiIdx[pCur->iPage] = (u16)lwr; + pCur->apPage[pCur->iPage] = pCur->pPage; + pCur->ix = 0; + pCur->iPage++; + rc = getAndInitPage(pCur->pBt, chldPg, &pCur->pPage, pCur->curPagerFlags); + if( rc==SQLITE_OK + && (pCur->pPage->nCell<1 || pCur->pPage->intKey!=pCur->curIntKey) + ){ + releasePage(pCur->pPage); + rc = SQLITE_CORRUPT_PGNO(chldPg); + } + if( rc ){ + pCur->pPage = pCur->apPage[--pCur->iPage]; + break; + } + /* + ***** End of in-lined moveToChild() call */ + } moveto_index_finish: pCur->info.nSize = 0; assert( (pCur->curFlags & BTCF_ValidOvfl)==0 ); @@ -72072,14 +76319,8 @@ static SQLITE_NOINLINE int btreeNext(BtCursor *pCur){ pPage = pCur->pPage; idx = ++pCur->ix; - if( !pPage->isInit || sqlite3FaultSim(412) ){ - /* The only known way for this to happen is for there to be a - ** recursive SQL function that does a DELETE operation as part of a - ** SELECT which deletes content out from under an active cursor - ** in a corrupt database file where the table being DELETE-ed from - ** has pages in common with the table being queried. See TH3 - ** module cov1/btree78.test testcase 220 (2018-06-08) for an - ** example. */ + if( sqlite3FaultSim(412) ) pPage->isInit = 0; + if( !pPage->isInit ){ return SQLITE_CORRUPT_BKPT; } @@ -72171,7 +76412,10 @@ static SQLITE_NOINLINE int btreePrevious(BtCursor *pCur){ } pPage = pCur->pPage; - assert( pPage->isInit ); + if( sqlite3FaultSim(412) ) pPage->isInit = 0; + if( !pPage->isInit ){ + return SQLITE_CORRUPT_BKPT; + } if( !pPage->leaf ){ int idx = pCur->ix; rc = moveToChild(pCur, get4byte(findCell(pPage, idx))); @@ -72255,8 +76499,8 @@ static int allocateBtreePage( assert( eMode==BTALLOC_ANY || (nearby>0 && IfNotOmitAV(pBt->autoVacuum)) ); pPage1 = pBt->pPage1; mxPage = btreePagecount(pBt); - /* EVIDENCE-OF: R-05119-02637 The 4-byte big-endian integer at offset 36 - ** stores stores the total number of pages on the freelist. */ + /* EVIDENCE-OF: R-21003-45125 The 4-byte big-endian integer at offset 36 + ** stores the total number of pages on the freelist. */ n = get4byte(&pPage1->aData[36]); testcase( n==mxPage-1 ); if( n>=mxPage ){ @@ -72342,7 +76586,7 @@ static int allocateBtreePage( memcpy(&pPage1->aData[32], &pTrunk->aData[0], 4); *ppPage = pTrunk; pTrunk = 0; - TRACE(("ALLOCATE: %d trunk - %d free pages left\n", *pPgno, n-1)); + TRACE(("ALLOCATE: %u trunk - %u free pages left\n", *pPgno, n-1)); }else if( k>(u32)(pBt->usableSize/4 - 2) ){ /* Value of k is out of range. Database corruption */ rc = SQLITE_CORRUPT_PGNO(iTrunk); @@ -72408,7 +76652,7 @@ static int allocateBtreePage( } } pTrunk = 0; - TRACE(("ALLOCATE: %d trunk - %d free pages left\n", *pPgno, n-1)); + TRACE(("ALLOCATE: %u trunk - %u free pages left\n", *pPgno, n-1)); #endif }else if( k>0 ){ /* Extract a leaf from the trunk */ @@ -72453,8 +76697,8 @@ static int allocateBtreePage( ){ int noContent; *pPgno = iPage; - TRACE(("ALLOCATE: %d was leaf %d of %d on trunk %d" - ": %d more free pages\n", + TRACE(("ALLOCATE: %u was leaf %u of %u on trunk %u" + ": %u more free pages\n", *pPgno, closest+1, k, pTrunk->pgno, n-1)); rc = sqlite3PagerWrite(pTrunk->pDbPage); if( rc ) goto end_allocate_page; @@ -72510,7 +76754,7 @@ static int allocateBtreePage( ** becomes a new pointer-map page, the second is used by the caller. */ MemPage *pPg = 0; - TRACE(("ALLOCATE: %d from end of file (pointer-map page)\n", pBt->nPage)); + TRACE(("ALLOCATE: %u from end of file (pointer-map page)\n", pBt->nPage)); assert( pBt->nPage!=PENDING_BYTE_PAGE(pBt) ); rc = btreeGetUnusedPage(pBt, pBt->nPage, &pPg, bNoContent); if( rc==SQLITE_OK ){ @@ -72533,7 +76777,7 @@ static int allocateBtreePage( releasePage(*ppPage); *ppPage = 0; } - TRACE(("ALLOCATE: %d from end of file\n", *pPgno)); + TRACE(("ALLOCATE: %u from end of file\n", *pPgno)); } assert( CORRUPT_DB || *pPgno!=PENDING_BYTE_PAGE(pBt) ); @@ -72601,7 +76845,7 @@ static int freePage2(BtShared *pBt, MemPage *pMemPage, Pgno iPage){ /* If the database supports auto-vacuum, write an entry in the pointer-map ** to indicate that the page is free. */ - if( ISAUTOVACUUM ){ + if( ISAUTOVACUUM(pBt) ){ ptrmapPut(pBt, iPage, PTRMAP_FREEPAGE, 0, &rc); if( rc ) goto freepage_out; } @@ -72661,7 +76905,7 @@ static int freePage2(BtShared *pBt, MemPage *pMemPage, Pgno iPage){ } rc = btreeSetHasContent(pBt, iPage); } - TRACE(("FREE-PAGE: %d leaf on trunk page %d\n",pPage->pgno,pTrunk->pgno)); + TRACE(("FREE-PAGE: %u leaf on trunk page %u\n",pPage->pgno,pTrunk->pgno)); goto freepage_out; } } @@ -72682,7 +76926,7 @@ static int freePage2(BtShared *pBt, MemPage *pMemPage, Pgno iPage){ put4byte(pPage->aData, iTrunk); put4byte(&pPage->aData[4], 0); put4byte(&pPage1->aData[32], iPage); - TRACE(("FREE-PAGE: %d new trunk page replacing %d\n", pPage->pgno, iTrunk)); + TRACE(("FREE-PAGE: %u new trunk page replacing %u\n", pPage->pgno, iTrunk)); freepage_out: if( pPage ){ @@ -72771,7 +77015,7 @@ static SQLITE_NOINLINE int clearCellOverflow( /* Call xParseCell to compute the size of a cell. If the cell contains ** overflow, then invoke cellClearOverflow to clear out that overflow. -** STore the result code (SQLITE_OK or some error code) in rc. +** Store the result code (SQLITE_OK or some error code) in rc. ** ** Implemented as macro to force inlining for performance. */ @@ -73005,12 +77249,6 @@ static void dropCell(MemPage *pPage, int idx, int sz, int *pRC){ assert( pPage->pBt->usableSize > (u32)(ptr-data) ); pc = get2byte(ptr); hdr = pPage->hdrOffset; -#if 0 /* Not required. Omit for efficiency */ - if( pc<hdr+pPage->nCell*2 ){ - *pRC = SQLITE_CORRUPT_BKPT; - return; - } -#endif testcase( pc==(u32)get2byte(&data[hdr+5]) ); testcase( pc+sz==pPage->pBt->usableSize ); if( pc+sz > pPage->pBt->usableSize ){ @@ -73048,23 +77286,27 @@ static void dropCell(MemPage *pPage, int idx, int sz, int *pRC){ ** Allocating a new entry in pPage->aCell[] implies that ** pPage->nOverflow is incremented. ** -** *pRC must be SQLITE_OK when this routine is called. +** The insertCellFast() routine below works exactly the same as +** insertCell() except that it lacks the pTemp and iChild parameters +** which are assumed zero. Other than that, the two routines are the +** same. +** +** Fixes or enhancements to this routine should be reflected in +** insertCellFast()! */ -static void insertCell( +static int insertCell( MemPage *pPage, /* Page into which we are copying */ int i, /* New cell becomes the i-th cell of the page */ u8 *pCell, /* Content of the new cell */ int sz, /* Bytes of content in pCell */ u8 *pTemp, /* Temp storage space for pCell, if needed */ - Pgno iChild, /* If non-zero, replace first 4 bytes with this value */ - int *pRC /* Read and write return code from here */ + Pgno iChild /* If non-zero, replace first 4 bytes with this value */ ){ int idx = 0; /* Where to write new cell content in data[] */ int j; /* Loop counter */ u8 *data; /* The content of the whole page */ u8 *pIns; /* The point in pPage->aCellIdx[] where no cell inserted */ - assert( *pRC==SQLITE_OK ); assert( i>=0 && i<=pPage->nCell+pPage->nOverflow ); assert( MX_CELL(pPage->pBt)<=10921 ); assert( pPage->nCell<=MX_CELL(pPage->pBt) || CORRUPT_DB ); @@ -73073,14 +77315,103 @@ static void insertCell( assert( sqlite3_mutex_held(pPage->pBt->mutex) ); assert( sz==pPage->xCellSize(pPage, pCell) || CORRUPT_DB ); assert( pPage->nFree>=0 ); + assert( iChild>0 ); if( pPage->nOverflow || sz+2>pPage->nFree ){ if( pTemp ){ memcpy(pTemp, pCell, sz); pCell = pTemp; } - if( iChild ){ - put4byte(pCell, iChild); + put4byte(pCell, iChild); + j = pPage->nOverflow++; + /* Comparison against ArraySize-1 since we hold back one extra slot + ** as a contingency. In other words, never need more than 3 overflow + ** slots but 4 are allocated, just to be safe. */ + assert( j < ArraySize(pPage->apOvfl)-1 ); + pPage->apOvfl[j] = pCell; + pPage->aiOvfl[j] = (u16)i; + + /* When multiple overflows occur, they are always sequential and in + ** sorted order. This invariants arise because multiple overflows can + ** only occur when inserting divider cells into the parent page during + ** balancing, and the dividers are adjacent and sorted. + */ + assert( j==0 || pPage->aiOvfl[j-1]<(u16)i ); /* Overflows in sorted order */ + assert( j==0 || i==pPage->aiOvfl[j-1]+1 ); /* Overflows are sequential */ + }else{ + int rc = sqlite3PagerWrite(pPage->pDbPage); + if( NEVER(rc!=SQLITE_OK) ){ + return rc; + } + assert( sqlite3PagerIswriteable(pPage->pDbPage) ); + data = pPage->aData; + assert( &data[pPage->cellOffset]==pPage->aCellIdx ); + rc = allocateSpace(pPage, sz, &idx); + if( rc ){ return rc; } + /* The allocateSpace() routine guarantees the following properties + ** if it returns successfully */ + assert( idx >= 0 ); + assert( idx >= pPage->cellOffset+2*pPage->nCell+2 || CORRUPT_DB ); + assert( idx+sz <= (int)pPage->pBt->usableSize ); + pPage->nFree -= (u16)(2 + sz); + /* In a corrupt database where an entry in the cell index section of + ** a btree page has a value of 3 or less, the pCell value might point + ** as many as 4 bytes in front of the start of the aData buffer for + ** the source page. Make sure this does not cause problems by not + ** reading the first 4 bytes */ + memcpy(&data[idx+4], pCell+4, sz-4); + put4byte(&data[idx], iChild); + pIns = pPage->aCellIdx + i*2; + memmove(pIns+2, pIns, 2*(pPage->nCell - i)); + put2byte(pIns, idx); + pPage->nCell++; + /* increment the cell count */ + if( (++data[pPage->hdrOffset+4])==0 ) data[pPage->hdrOffset+3]++; + assert( get2byte(&data[pPage->hdrOffset+3])==pPage->nCell || CORRUPT_DB ); +#ifndef SQLITE_OMIT_AUTOVACUUM + if( pPage->pBt->autoVacuum ){ + int rc2 = SQLITE_OK; + /* The cell may contain a pointer to an overflow page. If so, write + ** the entry for the overflow page into the pointer map. + */ + ptrmapPutOvflPtr(pPage, pPage, pCell, &rc2); + if( rc2 ) return rc2; } +#endif + } + return SQLITE_OK; +} + +/* +** This variant of insertCell() assumes that the pTemp and iChild +** parameters are both zero. Use this variant in sqlite3BtreeInsert() +** for performance improvement, and also so that this variant is only +** called from that one place, and is thus inlined, and thus runs must +** faster. +** +** Fixes or enhancements to this routine should be reflected into +** the insertCell() routine. +*/ +static int insertCellFast( + MemPage *pPage, /* Page into which we are copying */ + int i, /* New cell becomes the i-th cell of the page */ + u8 *pCell, /* Content of the new cell */ + int sz /* Bytes of content in pCell */ +){ + int idx = 0; /* Where to write new cell content in data[] */ + int j; /* Loop counter */ + u8 *data; /* The content of the whole page */ + u8 *pIns; /* The point in pPage->aCellIdx[] where no cell inserted */ + + assert( i>=0 && i<=pPage->nCell+pPage->nOverflow ); + assert( MX_CELL(pPage->pBt)<=10921 ); + assert( pPage->nCell<=MX_CELL(pPage->pBt) || CORRUPT_DB ); + assert( pPage->nOverflow<=ArraySize(pPage->apOvfl) ); + assert( ArraySize(pPage->apOvfl)==ArraySize(pPage->aiOvfl) ); + assert( sqlite3_mutex_held(pPage->pBt->mutex) ); + assert( sz==pPage->xCellSize(pPage, pCell) || CORRUPT_DB ); + assert( pPage->nFree>=0 ); + assert( pPage->nOverflow==0 ); + if( sz+2>pPage->nFree ){ j = pPage->nOverflow++; /* Comparison against ArraySize-1 since we hold back one extra slot ** as a contingency. In other words, never need more than 3 overflow @@ -73099,31 +77430,20 @@ static void insertCell( }else{ int rc = sqlite3PagerWrite(pPage->pDbPage); if( rc!=SQLITE_OK ){ - *pRC = rc; - return; + return rc; } assert( sqlite3PagerIswriteable(pPage->pDbPage) ); data = pPage->aData; assert( &data[pPage->cellOffset]==pPage->aCellIdx ); rc = allocateSpace(pPage, sz, &idx); - if( rc ){ *pRC = rc; return; } + if( rc ){ return rc; } /* The allocateSpace() routine guarantees the following properties ** if it returns successfully */ assert( idx >= 0 ); assert( idx >= pPage->cellOffset+2*pPage->nCell+2 || CORRUPT_DB ); assert( idx+sz <= (int)pPage->pBt->usableSize ); pPage->nFree -= (u16)(2 + sz); - if( iChild ){ - /* In a corrupt database where an entry in the cell index section of - ** a btree page has a value of 3 or less, the pCell value might point - ** as many as 4 bytes in front of the start of the aData buffer for - ** the source page. Make sure this does not cause problems by not - ** reading the first 4 bytes */ - memcpy(&data[idx+4], pCell+4, sz-4); - put4byte(&data[idx], iChild); - }else{ - memcpy(&data[idx], pCell, sz); - } + memcpy(&data[idx], pCell, sz); pIns = pPage->aCellIdx + i*2; memmove(pIns+2, pIns, 2*(pPage->nCell - i)); put2byte(pIns, idx); @@ -73133,13 +77453,16 @@ static void insertCell( assert( get2byte(&data[pPage->hdrOffset+3])==pPage->nCell || CORRUPT_DB ); #ifndef SQLITE_OMIT_AUTOVACUUM if( pPage->pBt->autoVacuum ){ + int rc2 = SQLITE_OK; /* The cell may contain a pointer to an overflow page. If so, write ** the entry for the overflow page into the pointer map. */ - ptrmapPutOvflPtr(pPage, pPage, pCell, pRC); + ptrmapPutOvflPtr(pPage, pPage, pCell, &rc2); + if( rc2 ) return rc2; } #endif } + return SQLITE_OK; } /* @@ -73240,14 +77563,16 @@ struct CellArray { ** computed. */ static void populateCellCache(CellArray *p, int idx, int N){ + MemPage *pRef = p->pRef; + u16 *szCell = p->szCell; assert( idx>=0 && idx+N<=p->nCell ); while( N>0 ){ assert( p->apCell[idx]!=0 ); - if( p->szCell[idx]==0 ){ - p->szCell[idx] = p->pRef->xCellSize(p->pRef, p->apCell[idx]); + if( szCell[idx]==0 ){ + szCell[idx] = pRef->xCellSize(pRef, p->apCell[idx]); }else{ assert( CORRUPT_DB || - p->szCell[idx]==p->pRef->xCellSize(p->pRef, p->apCell[idx]) ); + szCell[idx]==pRef->xCellSize(pRef, p->apCell[idx]) ); } idx++; N--; @@ -73301,12 +77626,13 @@ static int rebuildPage( int k; /* Current slot in pCArray->apEnd[] */ u8 *pSrcEnd; /* Current pCArray->apEnd[k] value */ + assert( nCell>0 ); assert( i<iEnd ); j = get2byte(&aData[hdr+5]); if( j>(u32)usableSize ){ j = 0; } memcpy(&pTmp[j], &aData[j], usableSize - j); - for(k=0; pCArray->ixNx[k]<=i && ALWAYS(k<NB*2); k++){} + for(k=0; ALWAYS(k<NB*2) && pCArray->ixNx[k]<=i; k++){} pSrcEnd = pCArray->apEnd[k]; pData = pEnd; @@ -73369,7 +77695,7 @@ static int rebuildPage( ** Finally, argument pBegin points to the byte immediately following the ** end of the space required by this page for the cell-pointer area (for ** all cells - not just those inserted by the current call). If the content -** area must be extended to before this point in order to accomodate all +** area must be extended to before this point in order to accommodate all ** cells in apCell[], then the cells do not fit and non-zero is returned. */ static int pageInsertArray( @@ -73389,7 +77715,7 @@ static int pageInsertArray( u8 *pEnd; /* Maximum extent of cell data */ assert( CORRUPT_DB || pPg->hdrOffset==0 ); /* Never called on page 1 */ if( iEnd<=iFirst ) return 0; - for(k=0; pCArray->ixNx[k]<=i && ALWAYS(k<NB*2); k++){} + for(k=0; ALWAYS(k<NB*2) && pCArray->ixNx[k]<=i ; k++){} pEnd = pCArray->apEnd[k]; while( 1 /*Exit by break*/ ){ int sz, rc; @@ -73447,39 +77773,50 @@ static int pageFreeArray( u8 * const pEnd = &aData[pPg->pBt->usableSize]; u8 * const pStart = &aData[pPg->hdrOffset + 8 + pPg->childPtrSize]; int nRet = 0; - int i; + int i, j; int iEnd = iFirst + nCell; - u8 *pFree = 0; - int szFree = 0; + int nFree = 0; + int aOfst[10]; + int aAfter[10]; for(i=iFirst; i<iEnd; i++){ u8 *pCell = pCArray->apCell[i]; if( SQLITE_WITHIN(pCell, pStart, pEnd) ){ int sz; + int iAfter; + int iOfst; /* No need to use cachedCellSize() here. The sizes of all cells that ** are to be freed have already been computing while deciding which ** cells need freeing */ sz = pCArray->szCell[i]; assert( sz>0 ); - if( pFree!=(pCell + sz) ){ - if( pFree ){ - assert( pFree>aData && (pFree - aData)<65536 ); - freeSpace(pPg, (u16)(pFree - aData), szFree); - } - pFree = pCell; - szFree = sz; - if( pFree+sz>pEnd ){ - return 0; + iOfst = (u16)(pCell - aData); + iAfter = iOfst+sz; + for(j=0; j<nFree; j++){ + if( aOfst[j]==iAfter ){ + aOfst[j] = iOfst; + break; + }else if( aAfter[j]==iOfst ){ + aAfter[j] = iAfter; + break; } - }else{ - pFree = pCell; - szFree += sz; + } + if( j>=nFree ){ + if( nFree>=(int)(sizeof(aOfst)/sizeof(aOfst[0])) ){ + for(j=0; j<nFree; j++){ + freeSpace(pPg, aOfst[j], aAfter[j]-aOfst[j]); + } + nFree = 0; + } + aOfst[nFree] = iOfst; + aAfter[nFree] = iAfter; + if( &aData[iAfter]>pEnd ) return 0; + nFree++; } nRet++; } } - if( pFree ){ - assert( pFree>aData && (pFree - aData)<65536 ); - freeSpace(pPg, (u16)(pFree - aData), szFree); + for(j=0; j<nFree; j++){ + freeSpace(pPg, aOfst[j], aAfter[j]-aOfst[j]); } return nRet; } @@ -73532,9 +77869,9 @@ static int editPage( nCell -= nTail; } - pData = &aData[get2byteNotZero(&aData[hdr+5])]; + pData = &aData[get2byte(&aData[hdr+5])]; if( pData<pBegin ) goto editpage_fail; - if( pData>pPg->aDataEnd ) goto editpage_fail; + if( NEVER(pData>pPg->aDataEnd) ) goto editpage_fail; /* Add cells to the start of the page */ if( iNew<iOld ){ @@ -73596,6 +77933,7 @@ static int editPage( return SQLITE_OK; editpage_fail: /* Unable to edit this page. Rebuild it from scratch instead. */ + if( nNew<1 ) return SQLITE_CORRUPT_BKPT; populateCellCache(pCArray, iNew, nNew); return rebuildPage(pCArray, iNew, nNew, pPg); } @@ -73673,12 +78011,12 @@ static int balance_quick(MemPage *pParent, MemPage *pPage, u8 *pSpace){ ** with entries for the new page, and any pointer from the ** cell on the page to an overflow page. If either of these ** operations fails, the return code is set, but the contents - ** of the parent page are still manipulated by thh code below. + ** of the parent page are still manipulated by the code below. ** That is Ok, at this point the parent page is guaranteed to ** be marked as dirty. Returning an error code will cause a ** rollback, undoing any changes made to the parent page. */ - if( ISAUTOVACUUM ){ + if( ISAUTOVACUUM(pBt) ){ ptrmapPut(pBt, pgnoNew, PTRMAP_BTREE, pParent->pgno, &rc); if( szCell>pNew->minLocal ){ ptrmapPutOvflPtr(pNew, pNew, pCell, &rc); @@ -73706,8 +78044,8 @@ static int balance_quick(MemPage *pParent, MemPage *pPage, u8 *pSpace){ /* Insert the new divider cell into pParent. */ if( rc==SQLITE_OK ){ - insertCell(pParent, pParent->nCell, pSpace, (int)(pOut-pSpace), - 0, pPage->pgno, &rc); + rc = insertCell(pParent, pParent->nCell, pSpace, (int)(pOut-pSpace), + 0, pPage->pgno); } /* Set the right-child pointer of pParent to point to the new page. */ @@ -73816,7 +78154,7 @@ static void copyNodeContent(MemPage *pFrom, MemPage *pTo, int *pRC){ /* If this is an auto-vacuum database, update the pointer-map entries ** for any b-tree or overflow pages that pTo now contains the pointers to. */ - if( ISAUTOVACUUM ){ + if( ISAUTOVACUUM(pBt) ){ *pRC = setChildPtrmaps(pTo); } } @@ -73894,8 +78232,6 @@ static int balance_nonroot( Pgno pgno; /* Temp var to store a page number in */ u8 abDone[NB+2]; /* True after i'th new page is populated */ Pgno aPgno[NB+2]; /* Page numbers of new pages before shuffling */ - Pgno aPgOrder[NB+2]; /* Copy of aPgno[] used for sorting pages */ - u16 aPgFlags[NB+2]; /* flags field of new pages before shuffling */ CellArray b; /* Parsed information on cells being balanced */ memset(abDone, 0, sizeof(abDone)); @@ -73951,7 +78287,7 @@ static int balance_nonroot( pgno = get4byte(pRight); while( 1 ){ if( rc==SQLITE_OK ){ - rc = getAndInitPage(pBt, pgno, &apOld[i], 0, 0); + rc = getAndInitPage(pBt, pgno, &apOld[i], 0); } if( rc ){ memset(apOld, 0, (i+1)*sizeof(MemPage*)); @@ -74242,15 +78578,17 @@ static int balance_nonroot( d = r + 1 - leafData; (void)cachedCellSize(&b, d); do{ + int szR, szD; assert( d<nMaxCells ); assert( r<nMaxCells ); - (void)cachedCellSize(&b, r); + szR = cachedCellSize(&b, r); + szD = b.szCell[d]; if( szRight!=0 - && (bBulk || szRight+b.szCell[d]+2 > szLeft-(b.szCell[r]+(i==k-1?0:2)))){ + && (bBulk || szRight+szD+2 > szLeft-(szR+(i==k-1?0:2)))){ break; } - szRight += b.szCell[d] + 2; - szLeft -= b.szCell[r] + 2; + szRight += szD + 2; + szLeft -= szR + 2; cntNew[i-1] = r; r--; d--; @@ -74263,7 +78601,7 @@ static int balance_nonroot( } } - /* Sanity check: For a non-corrupt database file one of the follwing + /* Sanity check: For a non-corrupt database file one of the following ** must be true: ** (1) We found one or more cells (cntNew[0])>0), or ** (2) pPage is a virtual root page. A virtual root page is when @@ -74271,7 +78609,7 @@ static int balance_nonroot( ** that page. */ assert( cntNew[0]>0 || (pParent->pgno==1 && pParent->nCell==0) || CORRUPT_DB); - TRACE(("BALANCE: old: %d(nc=%d) %d(nc=%d) %d(nc=%d)\n", + TRACE(("BALANCE: old: %u(nc=%u) %u(nc=%u) %u(nc=%u)\n", apOld[0]->pgno, apOld[0]->nCell, nOld>=2 ? apOld[1]->pgno : 0, nOld>=2 ? apOld[1]->nCell : 0, nOld>=3 ? apOld[2]->pgno : 0, nOld>=3 ? apOld[2]->nCell : 0 @@ -74304,7 +78642,7 @@ static int balance_nonroot( cntOld[i] = b.nCell; /* Set the pointer-map entry for the new sibling page. */ - if( ISAUTOVACUUM ){ + if( ISAUTOVACUUM(pBt) ){ ptrmapPut(pBt, pNew->pgno, PTRMAP_BTREE, pParent->pgno, &rc); if( rc!=SQLITE_OK ){ goto balance_cleanup; @@ -74319,47 +78657,44 @@ static int balance_nonroot( ** of the table is closer to a linear scan through the file. That in turn ** helps the operating system to deliver pages from the disk more rapidly. ** - ** An O(n^2) insertion sort algorithm is used, but since n is never more - ** than (NB+2) (a small constant), that should not be a problem. + ** An O(N*N) sort algorithm is used, but since N is never more than NB+2 + ** (5), that is not a performance concern. ** ** When NB==3, this one optimization makes the database about 25% faster ** for large insertions and deletions. */ for(i=0; i<nNew; i++){ - aPgOrder[i] = aPgno[i] = apNew[i]->pgno; - aPgFlags[i] = apNew[i]->pDbPage->flags; - for(j=0; j<i; j++){ - if( NEVER(aPgno[j]==aPgno[i]) ){ - /* This branch is taken if the set of sibling pages somehow contains - ** duplicate entries. This can happen if the database is corrupt. - ** It would be simpler to detect this as part of the loop below, but - ** we do the detection here in order to avoid populating the pager - ** cache with two separate objects associated with the same - ** page number. */ - assert( CORRUPT_DB ); - rc = SQLITE_CORRUPT_BKPT; - goto balance_cleanup; - } - } + aPgno[i] = apNew[i]->pgno; + assert( apNew[i]->pDbPage->flags & PGHDR_WRITEABLE ); + assert( apNew[i]->pDbPage->flags & PGHDR_DIRTY ); } - for(i=0; i<nNew; i++){ - int iBest = 0; /* aPgno[] index of page number to use */ - for(j=1; j<nNew; j++){ - if( aPgOrder[j]<aPgOrder[iBest] ) iBest = j; - } - pgno = aPgOrder[iBest]; - aPgOrder[iBest] = 0xffffffff; - if( iBest!=i ){ - if( iBest>i ){ - sqlite3PagerRekey(apNew[iBest]->pDbPage, pBt->nPage+iBest+1, 0); - } - sqlite3PagerRekey(apNew[i]->pDbPage, pgno, aPgFlags[iBest]); - apNew[i]->pgno = pgno; + for(i=0; i<nNew-1; i++){ + int iB = i; + for(j=i+1; j<nNew; j++){ + if( apNew[j]->pgno < apNew[iB]->pgno ) iB = j; } - } - TRACE(("BALANCE: new: %d(%d nc=%d) %d(%d nc=%d) %d(%d nc=%d) " - "%d(%d nc=%d) %d(%d nc=%d)\n", + /* If apNew[i] has a page number that is bigger than any of the + ** subsequence apNew[i] entries, then swap apNew[i] with the subsequent + ** entry that has the smallest page number (which we know to be + ** entry apNew[iB]). + */ + if( iB!=i ){ + Pgno pgnoA = apNew[i]->pgno; + Pgno pgnoB = apNew[iB]->pgno; + Pgno pgnoTemp = (PENDING_BYTE/pBt->pageSize)+1; + u16 fgA = apNew[i]->pDbPage->flags; + u16 fgB = apNew[iB]->pDbPage->flags; + sqlite3PagerRekey(apNew[i]->pDbPage, pgnoTemp, fgB); + sqlite3PagerRekey(apNew[iB]->pDbPage, pgnoA, fgA); + sqlite3PagerRekey(apNew[i]->pDbPage, pgnoB, fgB); + apNew[i]->pgno = pgnoB; + apNew[iB]->pgno = pgnoA; + } + } + + TRACE(("BALANCE: new: %u(%u nc=%u) %u(%u nc=%u) %u(%u nc=%u) " + "%u(%u nc=%u) %u(%u nc=%u)\n", apNew[0]->pgno, szNew[0], cntNew[0], nNew>=2 ? apNew[1]->pgno : 0, nNew>=2 ? szNew[1] : 0, nNew>=2 ? cntNew[1] - cntNew[0] - !leafData : 0, @@ -74400,7 +78735,7 @@ static int balance_nonroot( ** updated. This happens below, after the sibling pages have been ** populated, not here. */ - if( ISAUTOVACUUM ){ + if( ISAUTOVACUUM(pBt) ){ MemPage *pOld; MemPage *pNew = pOld = apNew[0]; int cntOldNext = pNew->nCell + pNew->nOverflow; @@ -74491,13 +78826,13 @@ static int balance_nonroot( iOvflSpace += sz; assert( sz<=pBt->maxLocal+23 ); assert( iOvflSpace <= (int)pBt->pageSize ); - for(k=0; b.ixNx[k]<=j && ALWAYS(k<NB*2); k++){} + for(k=0; ALWAYS(k<NB*2) && b.ixNx[k]<=j; k++){} pSrcEnd = b.apEnd[k]; - if( SQLITE_WITHIN(pSrcEnd, pCell, pCell+sz) ){ + if( SQLITE_OVERFLOW(pSrcEnd, pCell, pCell+sz) ){ rc = SQLITE_CORRUPT_BKPT; goto balance_cleanup; } - insertCell(pParent, nxDiv+i, pCell, sz, pTemp, pNew->pgno, &rc); + rc = insertCell(pParent, nxDiv+i, pCell, sz, pTemp, pNew->pgno); if( rc!=SQLITE_OK ) goto balance_cleanup; assert( sqlite3PagerIswriteable(pParent->pDbPage) ); } @@ -74527,6 +78862,8 @@ static int balance_nonroot( for(i=1-nNew; i<nNew; i++){ int iPg = i<0 ? -i : i; assert( iPg>=0 && iPg<nNew ); + assert( iPg>=1 || i>=0 ); + assert( iPg<ArraySize(cntOld) ); if( abDone[iPg] ) continue; /* Skip pages already processed */ if( i>=0 /* On the upwards pass, or... */ || cntOld[iPg-1]>=cntNew[iPg-1] /* Condition (1) is true */ @@ -74593,7 +78930,7 @@ static int balance_nonroot( ); copyNodeContent(apNew[0], pParent, &rc); freePage(apNew[0], &rc); - }else if( ISAUTOVACUUM && !leafCorrection ){ + }else if( ISAUTOVACUUM(pBt) && !leafCorrection ){ /* Fix the pointer map entries associated with the right-child of each ** sibling page. All other pointer map entries have already been taken ** care of. */ @@ -74604,7 +78941,7 @@ static int balance_nonroot( } assert( pParent->isInit ); - TRACE(("BALANCE: finished: old=%d new=%d cells=%d\n", + TRACE(("BALANCE: finished: old=%u new=%u cells=%u\n", nOld, nNew, b.nCell)); /* Free any old pages that were not reused as new pages. @@ -74614,7 +78951,7 @@ static int balance_nonroot( } #if 0 - if( ISAUTOVACUUM && rc==SQLITE_OK && apNew[0]->isInit ){ + if( ISAUTOVACUUM(pBt) && rc==SQLITE_OK && apNew[0]->isInit ){ /* The ptrmapCheckPages() contains assert() statements that verify that ** all pointer map pages are set correctly. This is helpful while ** debugging. This is usually disabled because a corrupt database may @@ -74676,7 +79013,7 @@ static int balance_deeper(MemPage *pRoot, MemPage **ppChild){ if( rc==SQLITE_OK ){ rc = allocateBtreePage(pBt,&pChild,&pgnoChild,pRoot->pgno,0); copyNodeContent(pRoot, pChild, &rc); - if( ISAUTOVACUUM ){ + if( ISAUTOVACUUM(pBt) ){ ptrmapPut(pBt, pgnoChild, PTRMAP_BTREE, pRoot->pgno, &rc); } } @@ -74689,7 +79026,7 @@ static int balance_deeper(MemPage *pRoot, MemPage **ppChild){ assert( sqlite3PagerIswriteable(pRoot->pDbPage) ); assert( pChild->nCell==pRoot->nCell || CORRUPT_DB ); - TRACE(("BALANCE: copy root %d into %d\n", pRoot->pgno, pChild->pgno)); + TRACE(("BALANCE: copy root %u into %u\n", pRoot->pgno, pChild->pgno)); /* Copy the overflow cells from pRoot to pChild */ memcpy(pChild->aiOvfl, pRoot->aiOvfl, @@ -74742,7 +79079,6 @@ static int anotherValidCursor(BtCursor *pCur){ */ static int balance(BtCursor *pCur){ int rc = SQLITE_OK; - const int nMin = pCur->pBt->usableSize * 2 / 3; u8 aBalanceQuickSpace[13]; u8 *pFree = 0; @@ -74754,7 +79090,11 @@ static int balance(BtCursor *pCur){ MemPage *pPage = pCur->pPage; if( NEVER(pPage->nFree<0) && btreeComputeFreeSpace(pPage) ) break; - if( pPage->nOverflow==0 && pPage->nFree<=nMin ){ + if( pPage->nOverflow==0 && pPage->nFree*3<=(int)pCur->pBt->usableSize*2 ){ + /* No rebalance required as long as: + ** (1) There are no overflow cells + ** (2) The amount of free space on the page is less than 2/3rds of + ** the total usable space on the page. */ break; }else if( (iPage = pCur->iPage)==0 ){ if( pPage->nOverflow && (rc = anotherValidCursor(pCur))==SQLITE_OK ){ @@ -74777,6 +79117,11 @@ static int balance(BtCursor *pCur){ }else{ break; } + }else if( sqlite3PagerPageRefcount(pPage->pDbPage)>1 ){ + /* The page being written is not a root page, and there is currently + ** more than one reference to it. This only happens if the page is one + ** of its own ancestor pages. Corruption. */ + rc = SQLITE_CORRUPT_BKPT; }else{ MemPage * const pParent = pCur->apPage[iPage-1]; int const iIdx = pCur->aiIdx[iPage-1]; @@ -74875,7 +79220,7 @@ static int btreeOverwriteContent( ){ int nData = pX->nData - iOffset; if( nData<=0 ){ - /* Overwritting with zeros */ + /* Overwriting with zeros */ int i; for(i=0; i<iAmt && pDest[i]==0; i++){} if( i<iAmt ){ @@ -74907,9 +79252,13 @@ static int btreeOverwriteContent( /* ** Overwrite the cell that cursor pCur is pointing to with fresh content -** contained in pX. +** contained in pX. In this variant, pCur is pointing to an overflow +** cell. */ -static int btreeOverwriteCell(BtCursor *pCur, const BtreePayload *pX){ +static SQLITE_NOINLINE int btreeOverwriteOverflowCell( + BtCursor *pCur, /* Cursor pointing to cell to overwrite */ + const BtreePayload *pX /* Content to write into the cell */ +){ int iOffset; /* Next byte of pX->pData to write */ int nTotal = pX->nData + pX->nZero; /* Total bytes of to write */ int rc; /* Return code */ @@ -74918,16 +79267,12 @@ static int btreeOverwriteCell(BtCursor *pCur, const BtreePayload *pX){ Pgno ovflPgno; /* Next overflow page to write */ u32 ovflPageSize; /* Size to write on overflow page */ - if( pCur->info.pPayload + pCur->info.nLocal > pPage->aDataEnd - || pCur->info.pPayload < pPage->aData + pPage->cellOffset - ){ - return SQLITE_CORRUPT_BKPT; - } + assert( pCur->info.nLocal<nTotal ); /* pCur is an overflow cell */ + /* Overwrite the local portion first */ rc = btreeOverwriteContent(pPage, pCur->info.pPayload, pX, 0, pCur->info.nLocal); if( rc ) return rc; - if( pCur->info.nLocal==nTotal ) return SQLITE_OK; /* Now overwrite the overflow pages */ iOffset = pCur->info.nLocal; @@ -74957,6 +79302,29 @@ static int btreeOverwriteCell(BtCursor *pCur, const BtreePayload *pX){ return SQLITE_OK; } +/* +** Overwrite the cell that cursor pCur is pointing to with fresh content +** contained in pX. +*/ +static int btreeOverwriteCell(BtCursor *pCur, const BtreePayload *pX){ + int nTotal = pX->nData + pX->nZero; /* Total bytes of to write */ + MemPage *pPage = pCur->pPage; /* Page being written */ + + if( pCur->info.pPayload + pCur->info.nLocal > pPage->aDataEnd + || pCur->info.pPayload < pPage->aData + pPage->cellOffset + ){ + return SQLITE_CORRUPT_BKPT; + } + if( pCur->info.nLocal==nTotal ){ + /* The entire cell is local */ + return btreeOverwriteContent(pPage, pCur->info.pPayload, pX, + 0, pCur->info.nLocal); + }else{ + /* The cell contains overflow content */ + return btreeOverwriteOverflowCell(pCur, pX); + } +} + /* ** Insert a new record into the BTree. The content of the new record @@ -74974,7 +79342,7 @@ static int btreeOverwriteCell(BtCursor *pCur, const BtreePayload *pX){ ** pX.pData,nData,nZero fields must be zero. ** ** If the seekResult parameter is non-zero, then a successful call to -** MovetoUnpacked() to seek cursor pCur to (pKey,nKey) has already +** sqlite3BtreeIndexMoveto() to seek cursor pCur to (pKey,nKey) has already ** been performed. In other words, if seekResult!=0 then the cursor ** is currently pointing to a cell that will be adjacent to the cell ** to be inserted. If seekResult<0 then pCur points to a cell that is @@ -74992,7 +79360,7 @@ SQLITE_PRIVATE int sqlite3BtreeInsert( BtCursor *pCur, /* Insert data into the table of this cursor */ const BtreePayload *pX, /* Content of the row to be inserted */ int flags, /* True if this is likely an append */ - int seekResult /* Result of prior MovetoUnpacked() call */ + int seekResult /* Result of prior IndexMoveto() call */ ){ int rc; int loc = seekResult; /* -1: before desired location +1: after */ @@ -75000,7 +79368,6 @@ SQLITE_PRIVATE int sqlite3BtreeInsert( int idx; MemPage *pPage; Btree *p = pCur->pBtree; - BtShared *pBt = p->pBt; unsigned char *oldCell; unsigned char *newCell = 0; @@ -75019,7 +79386,7 @@ SQLITE_PRIVATE int sqlite3BtreeInsert( ** not to clear the cursor here. */ if( pCur->curFlags & BTCF_Multiple ){ - rc = saveAllCursors(pBt, pCur->pgnoRoot, pCur); + rc = saveAllCursors(p->pBt, pCur->pgnoRoot, pCur); if( rc ) return rc; if( loc && pCur->iPage<0 ){ /* This can only happen if the schema is corrupt such that there is more @@ -75031,15 +79398,20 @@ SQLITE_PRIVATE int sqlite3BtreeInsert( } } + /* Ensure that the cursor is not in the CURSOR_FAULT state and that it + ** points to a valid cell. + */ if( pCur->eState>=CURSOR_REQUIRESEEK ){ + testcase( pCur->eState==CURSOR_REQUIRESEEK ); + testcase( pCur->eState==CURSOR_FAULT ); rc = moveToRoot(pCur); if( rc && rc!=SQLITE_EMPTY ) return rc; } assert( cursorOwnsBtShared(pCur) ); assert( (pCur->curFlags & BTCF_WriteFlag)!=0 - && pBt->inTransaction==TRANS_WRITE - && (pBt->btsFlags & BTS_READ_ONLY)==0 ); + && p->pBt->inTransaction==TRANS_WRITE + && (p->pBt->btsFlags & BTS_READ_ONLY)==0 ); assert( hasSharedCacheTableLock(p, pCur->pgnoRoot, pCur->pKeyInfo!=0, 2) ); /* Assert that the caller has been consistent. If this cursor was opened @@ -75137,13 +79509,14 @@ SQLITE_PRIVATE int sqlite3BtreeInsert( } } assert( pCur->eState==CURSOR_VALID - || (pCur->eState==CURSOR_INVALID && loc) ); + || (pCur->eState==CURSOR_INVALID && loc) || CORRUPT_DB ); pPage = pCur->pPage; assert( pPage->intKey || pX->nKey>=0 || (flags & BTREE_PREFORMAT) ); assert( pPage->leaf || !pPage->intKey ); if( pPage->nFree<0 ){ - if( pCur->eState>CURSOR_INVALID ){ + if( NEVER(pCur->eState>CURSOR_INVALID) ){ + /* ^^^^^--- due to the moveToRoot() call above */ rc = SQLITE_CORRUPT_BKPT; }else{ rc = btreeComputeFreeSpace(pPage); @@ -75151,31 +79524,34 @@ SQLITE_PRIVATE int sqlite3BtreeInsert( if( rc ) return rc; } - TRACE(("INSERT: table=%d nkey=%lld ndata=%d page=%d %s\n", + TRACE(("INSERT: table=%u nkey=%lld ndata=%u page=%u %s\n", pCur->pgnoRoot, pX->nKey, pX->nData, pPage->pgno, loc==0 ? "overwrite" : "new entry")); - assert( pPage->isInit ); - newCell = pBt->pTmpSpace; + assert( pPage->isInit || CORRUPT_DB ); + newCell = p->pBt->pTmpSpace; assert( newCell!=0 ); + assert( BTREE_PREFORMAT==OPFLAG_PREFORMAT ); if( flags & BTREE_PREFORMAT ){ rc = SQLITE_OK; - szNew = pBt->nPreformatSize; + szNew = p->pBt->nPreformatSize; if( szNew<4 ) szNew = 4; - if( ISAUTOVACUUM && szNew>pPage->maxLocal ){ + if( ISAUTOVACUUM(p->pBt) && szNew>pPage->maxLocal ){ CellInfo info; pPage->xParseCell(pPage, newCell, &info); if( info.nPayload!=info.nLocal ){ Pgno ovfl = get4byte(&newCell[szNew-4]); - ptrmapPut(pBt, ovfl, PTRMAP_OVERFLOW1, pPage->pgno, &rc); + ptrmapPut(p->pBt, ovfl, PTRMAP_OVERFLOW1, pPage->pgno, &rc); + if( NEVER(rc) ) goto end_insert; } } }else{ rc = fillInCell(pPage, newCell, pX, &szNew); + if( rc ) goto end_insert; } - if( rc ) goto end_insert; assert( szNew==pPage->xCellSize(pPage, newCell) ); - assert( szNew <= MX_CELL_SIZE(pBt) ); + assert( szNew <= MX_CELL_SIZE(p->pBt) ); idx = pCur->ix; + pCur->info.nSize = 0; if( loc==0 ){ CellInfo info; assert( idx>=0 ); @@ -75194,7 +79570,7 @@ SQLITE_PRIVATE int sqlite3BtreeInsert( testcase( pCur->curFlags & BTCF_ValidOvfl ); invalidateOverflowCache(pCur); if( info.nSize==szNew && info.nLocal==info.nPayload - && (!ISAUTOVACUUM || szNew<pPage->minLocal) + && (!ISAUTOVACUUM(p->pBt) || szNew<pPage->minLocal) ){ /* Overwrite the old cell with the new if they are the same size. ** We could also try to do this if the old cell is smaller, then add @@ -75224,7 +79600,7 @@ SQLITE_PRIVATE int sqlite3BtreeInsert( }else{ assert( pPage->leaf ); } - insertCell(pPage, idx, newCell, szNew, 0, 0, &rc); + rc = insertCellFast(pPage, idx, newCell, szNew); assert( pPage->nOverflow==0 || rc==SQLITE_OK ); assert( rc!=SQLITE_OK || pPage->nCell>0 || pPage->nOverflow>0 ); @@ -75248,7 +79624,6 @@ SQLITE_PRIVATE int sqlite3BtreeInsert( ** larger than the largest existing key, it is possible to insert the ** row without seeking the cursor. This can be a big performance boost. */ - pCur->info.nSize = 0; if( pPage->nOverflow ){ assert( rc==SQLITE_OK ); pCur->curFlags &= ~(BTCF_ValidNKey); @@ -75297,7 +79672,6 @@ end_insert: ** SQLITE_OK is returned if successful, or an SQLite error code otherwise. */ SQLITE_PRIVATE int sqlite3BtreeTransferRow(BtCursor *pDest, BtCursor *pSrc, i64 iKey){ - int rc = SQLITE_OK; BtShared *pBt = pDest->pBt; u8 *aOut = pBt->pTmpSpace; /* Pointer to next output buffer */ const u8 *aIn; /* Pointer to next input buffer */ @@ -75305,7 +79679,11 @@ SQLITE_PRIVATE int sqlite3BtreeTransferRow(BtCursor *pDest, BtCursor *pSrc, i64 u32 nRem; /* Bytes of data still to copy */ getCellInfo(pSrc); - aOut += putVarint32(aOut, pSrc->info.nPayload); + if( pSrc->info.nPayload<0x80 ){ + *(aOut++) = pSrc->info.nPayload; + }else{ + aOut += sqlite3PutVarint(aOut, pSrc->info.nPayload); + } if( pDest->pKeyInfo==0 ) aOut += putVarint(aOut, iKey); nIn = pSrc->info.nLocal; aIn = pSrc->info.pPayload; @@ -75316,7 +79694,9 @@ SQLITE_PRIVATE int sqlite3BtreeTransferRow(BtCursor *pDest, BtCursor *pSrc, i64 if( nIn==nRem && nIn<pDest->pPage->maxLocal ){ memcpy(aOut, aIn, nIn); pBt->nPreformatSize = nIn + (aOut - pBt->pTmpSpace); + return SQLITE_OK; }else{ + int rc = SQLITE_OK; Pager *pSrcPager = pSrc->pBt->pPager; u8 *pPgnoOut = 0; Pgno ovflIn = 0; @@ -75368,7 +79748,7 @@ SQLITE_PRIVATE int sqlite3BtreeTransferRow(BtCursor *pDest, BtCursor *pSrc, i64 MemPage *pNew = 0; rc = allocateBtreePage(pBt, &pNew, &pgnoNew, 0, 0); put4byte(pPgnoOut, pgnoNew); - if( ISAUTOVACUUM && pPageOut ){ + if( ISAUTOVACUUM(pBt) && pPageOut ){ ptrmapPut(pBt, pgnoNew, PTRMAP_OVERFLOW2, pPageOut->pgno, &rc); } releasePage(pPageOut); @@ -75384,9 +79764,8 @@ SQLITE_PRIVATE int sqlite3BtreeTransferRow(BtCursor *pDest, BtCursor *pSrc, i64 releasePage(pPageOut); sqlite3PagerUnref(pPageIn); + return rc; } - - return rc; } /* @@ -75445,6 +79824,9 @@ SQLITE_PRIVATE int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){ if( pPage->nFree<0 && btreeComputeFreeSpace(pPage) ){ return SQLITE_CORRUPT_BKPT; } + if( pCell<&pPage->aCellIdx[pPage->nCell] ){ + return SQLITE_CORRUPT_BKPT; + } /* If the BTREE_SAVEPOSITION bit is on, then the cursor position must ** be preserved following this delete operation. If the current delete @@ -75465,7 +79847,8 @@ SQLITE_PRIVATE int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){ bPreserve = (flags & BTREE_SAVEPOSITION)!=0; if( bPreserve ){ if( !pPage->leaf - || (pPage->nFree+cellSizePtr(pPage,pCell)+2)>(int)(pBt->usableSize*2/3) + || (pPage->nFree+pPage->xCellSize(pPage,pCell)+2) > + (int)(pBt->usableSize*2/3) || pPage->nCell==1 /* See dbfuzz001.test for a test case */ ){ /* A b-tree rebalance will be required after deleting this entry. @@ -75540,7 +79923,7 @@ SQLITE_PRIVATE int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){ assert( pTmp!=0 ); rc = sqlite3PagerWrite(pLeaf->pDbPage); if( rc==SQLITE_OK ){ - insertCell(pPage, iCellIdx, pCell-4, nCell+4, pTmp, n, &rc); + rc = insertCell(pPage, iCellIdx, pCell-4, nCell+4, pTmp, n); } dropCell(pLeaf, pLeaf->nCell-1, nCell, &rc); if( rc ) return rc; @@ -75561,7 +79944,15 @@ SQLITE_PRIVATE int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){ ** been corrected, so be it. Otherwise, after balancing the leaf node, ** walk the cursor up the tree to the internal node and balance it as ** well. */ - rc = balance(pCur); + assert( pCur->pPage->nOverflow==0 ); + assert( pCur->pPage->nFree>=0 ); + if( pCur->pPage->nFree*3<=(int)pCur->pBt->usableSize*2 ){ + /* Optimization: If the free space is less than 2/3rds of the page, + ** then balance() will always be a no-op. No need to invoke it. */ + rc = SQLITE_OK; + }else{ + rc = balance(pCur); + } if( rc==SQLITE_OK && pCur->iPage>iCellDepth ){ releasePageNotNull(pCur->pPage); pCur->iPage--; @@ -75612,7 +80003,7 @@ static int btreeCreateTable(Btree *p, Pgno *piTable, int createTabFlags){ MemPage *pRoot; Pgno pgnoRoot; int rc; - int ptfFlags; /* Page-type flage for the root page of new table */ + int ptfFlags; /* Page-type flags for the root page of new table */ assert( sqlite3BtreeHoldsMutex(p) ); assert( pBt->inTransaction==TRANS_WRITE ); @@ -75781,7 +80172,7 @@ static int clearDatabasePage( if( pgno>btreePagecount(pBt) ){ return SQLITE_CORRUPT_BKPT; } - rc = getAndInitPage(pBt, pgno, &pPage, 0, 0); + rc = getAndInitPage(pBt, pgno, &pPage, 0); if( rc ) return rc; if( (pBt->openFlags & BTREE_SINGLE)==0 && sqlite3PagerPageRefcount(pPage->pDbPage) != (1 + (pgno==1)) @@ -76132,6 +80523,41 @@ SQLITE_PRIVATE Pager *sqlite3BtreePager(Btree *p){ #ifndef SQLITE_OMIT_INTEGRITY_CHECK /* +** Record an OOM error during integrity_check +*/ +static void checkOom(IntegrityCk *pCheck){ + pCheck->rc = SQLITE_NOMEM; + pCheck->mxErr = 0; /* Causes integrity_check processing to stop */ + if( pCheck->nErr==0 ) pCheck->nErr++; +} + +/* +** Invoke the progress handler, if appropriate. Also check for an +** interrupt. +*/ +static void checkProgress(IntegrityCk *pCheck){ + sqlite3 *db = pCheck->db; + if( AtomicLoad(&db->u1.isInterrupted) ){ + pCheck->rc = SQLITE_INTERRUPT; + pCheck->nErr++; + pCheck->mxErr = 0; + } +#ifndef SQLITE_OMIT_PROGRESS_CALLBACK + if( db->xProgress ){ + assert( db->nProgressOps>0 ); + pCheck->nStep++; + if( (pCheck->nStep % db->nProgressOps)==0 + && db->xProgress(db->pProgressArg) + ){ + pCheck->rc = SQLITE_INTERRUPT; + pCheck->nErr++; + pCheck->mxErr = 0; + } + } +#endif +} + +/* ** Append a message to the error message string. */ static void checkAppendMsg( @@ -76140,6 +80566,7 @@ static void checkAppendMsg( ... ){ va_list ap; + checkProgress(pCheck); if( !pCheck->mxErr ) return; pCheck->mxErr--; pCheck->nErr++; @@ -76148,12 +80575,13 @@ static void checkAppendMsg( sqlite3_str_append(&pCheck->errMsg, "\n", 1); } if( pCheck->zPfx ){ - sqlite3_str_appendf(&pCheck->errMsg, pCheck->zPfx, pCheck->v1, pCheck->v2); + sqlite3_str_appendf(&pCheck->errMsg, pCheck->zPfx, + pCheck->v0, pCheck->v1, pCheck->v2); } sqlite3_str_vappendf(&pCheck->errMsg, zFormat, ap); va_end(ap); if( pCheck->errMsg.accError==SQLITE_NOMEM ){ - pCheck->bOomFault = 1; + checkOom(pCheck); } } #endif /* SQLITE_OMIT_INTEGRITY_CHECK */ @@ -76165,7 +80593,8 @@ static void checkAppendMsg( ** corresponds to page iPg is already set. */ static int getPageReferenced(IntegrityCk *pCheck, Pgno iPg){ - assert( iPg<=pCheck->nPage && sizeof(pCheck->aPgRef[0])==1 ); + assert( pCheck->aPgRef!=0 ); + assert( iPg<=pCheck->nCkPage && sizeof(pCheck->aPgRef[0])==1 ); return (pCheck->aPgRef[iPg/8] & (1 << (iPg & 0x07))); } @@ -76173,7 +80602,8 @@ static int getPageReferenced(IntegrityCk *pCheck, Pgno iPg){ ** Set the bit in the IntegrityCk.aPgRef[] array that corresponds to page iPg. */ static void setPageReferenced(IntegrityCk *pCheck, Pgno iPg){ - assert( iPg<=pCheck->nPage && sizeof(pCheck->aPgRef[0])==1 ); + assert( pCheck->aPgRef!=0 ); + assert( iPg<=pCheck->nCkPage && sizeof(pCheck->aPgRef[0])==1 ); pCheck->aPgRef[iPg/8] |= (1 << (iPg & 0x07)); } @@ -76187,15 +80617,14 @@ static void setPageReferenced(IntegrityCk *pCheck, Pgno iPg){ ** Also check that the page number is in bounds. */ static int checkRef(IntegrityCk *pCheck, Pgno iPage){ - if( iPage>pCheck->nPage || iPage==0 ){ - checkAppendMsg(pCheck, "invalid page number %d", iPage); + if( iPage>pCheck->nCkPage || iPage==0 ){ + checkAppendMsg(pCheck, "invalid page number %u", iPage); return 1; } if( getPageReferenced(pCheck, iPage) ){ - checkAppendMsg(pCheck, "2nd reference to page %d", iPage); + checkAppendMsg(pCheck, "2nd reference to page %u", iPage); return 1; } - if( AtomicLoad(&pCheck->db->u1.isInterrupted) ) return 1; setPageReferenced(pCheck, iPage); return 0; } @@ -76218,14 +80647,14 @@ static void checkPtrmap( rc = ptrmapGet(pCheck->pBt, iChild, &ePtrmapType, &iPtrmapParent); if( rc!=SQLITE_OK ){ - if( rc==SQLITE_NOMEM || rc==SQLITE_IOERR_NOMEM ) pCheck->bOomFault = 1; - checkAppendMsg(pCheck, "Failed to read ptrmap key=%d", iChild); + if( rc==SQLITE_NOMEM || rc==SQLITE_IOERR_NOMEM ) checkOom(pCheck); + checkAppendMsg(pCheck, "Failed to read ptrmap key=%u", iChild); return; } if( ePtrmapType!=eType || iPtrmapParent!=iParent ){ checkAppendMsg(pCheck, - "Bad ptr map entry key=%d expected=(%d,%d) got=(%d,%d)", + "Bad ptr map entry key=%u expected=(%u,%u) got=(%u,%u)", iChild, eType, iParent, ePtrmapType, iPtrmapParent); } } @@ -76250,7 +80679,7 @@ static void checkList( if( checkRef(pCheck, iPage) ) break; N--; if( sqlite3PagerGet(pCheck->pPager, (Pgno)iPage, &pOvflPage, 0) ){ - checkAppendMsg(pCheck, "failed to get page %d", iPage); + checkAppendMsg(pCheck, "failed to get page %u", iPage); break; } pOvflData = (unsigned char *)sqlite3PagerGetData(pOvflPage); @@ -76263,7 +80692,7 @@ static void checkList( #endif if( n>pCheck->pBt->usableSize/4-2 ){ checkAppendMsg(pCheck, - "freelist leaf count too big on page %d", iPage); + "freelist leaf count too big on page %u", iPage); N--; }else{ for(i=0; i<(int)n; i++){ @@ -76295,7 +80724,7 @@ static void checkList( } if( N && nErrAtStart==pCheck->nErr ){ checkAppendMsg(pCheck, - "%s is %d but should be %d", + "%s is %u but should be %u", isFreeList ? "size" : "overflow list length", expected-N, expected); } @@ -76325,7 +80754,9 @@ static void checkList( ** lower 16 bits are the index of the last byte of that range. */ static void btreeHeapInsert(u32 *aHeap, u32 x){ - u32 j, i = ++aHeap[0]; + u32 j, i; + assert( aHeap!=0 ); + i = ++aHeap[0]; aHeap[i] = x; while( (j = i/2)>0 && aHeap[j]>aHeap[i] ){ x = aHeap[j]; @@ -76402,15 +80833,18 @@ static int checkTreePage( /* Check that the page exists */ + checkProgress(pCheck); + if( pCheck->mxErr==0 ) goto end_of_check; pBt = pCheck->pBt; usableSize = pBt->usableSize; if( iPage==0 ) return 0; if( checkRef(pCheck, iPage) ) return 0; - pCheck->zPfx = "Page %u: "; + pCheck->zPfx = "Tree %u page %u: "; pCheck->v1 = iPage; if( (rc = btreeGetPage(pBt, iPage, &pPage, 0))!=0 ){ checkAppendMsg(pCheck, "unable to get the page. error code=%d", rc); + if( rc==SQLITE_IOERR_NOMEM ) pCheck->rc = SQLITE_NOMEM; goto end_of_check; } @@ -76433,7 +80867,7 @@ static int checkTreePage( hdr = pPage->hdrOffset; /* Set up for cell analysis */ - pCheck->zPfx = "On tree page %u cell %d: "; + pCheck->zPfx = "Tree %u page %u cell %u: "; contentOffset = get2byteNotZero(&data[hdr+5]); assert( contentOffset<=usableSize ); /* Enforced by btreeInitPage() */ @@ -76453,7 +80887,7 @@ static int checkTreePage( pgno = get4byte(&data[hdr+8]); #ifndef SQLITE_OMIT_AUTOVACUUM if( pBt->autoVacuum ){ - pCheck->zPfx = "On page %u at right child: "; + pCheck->zPfx = "Tree %u page %u right child: "; checkPtrmap(pCheck, pgno, PTRMAP_BTREE, iPage); } #endif @@ -76477,7 +80911,7 @@ static int checkTreePage( pc = get2byteAligned(pCellIdx); pCellIdx -= 2; if( pc<contentOffset || pc>usableSize-4 ){ - checkAppendMsg(pCheck, "Offset %d out of range %d..%d", + checkAppendMsg(pCheck, "Offset %u out of range %u..%u", pc, contentOffset, usableSize-4); doCoverageCheck = 0; continue; @@ -76609,7 +81043,7 @@ static int checkTreePage( */ if( heap[0]==0 && nFrag!=data[hdr+7] ){ checkAppendMsg(pCheck, - "Fragmentation of %d bytes reported as %d on page %u", + "Fragmentation of %u bytes reported as %u on page %u", nFrag, data[hdr+7], iPage); } } @@ -76647,13 +81081,14 @@ end_of_check: ** the unverified btrees. Except, if aRoot[1] is 1, then the freelist ** checks are still performed. */ -SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck( +SQLITE_PRIVATE int sqlite3BtreeIntegrityCheck( sqlite3 *db, /* Database connection that is running the check */ Btree *p, /* The btree to be checked */ Pgno *aRoot, /* An array of root pages numbers for individual trees */ int nRoot, /* Number of entries in aRoot[] */ int mxErr, /* Stop reporting errors after this many */ - int *pnErr /* Write number of errors seen to this variable */ + int *pnErr, /* OUT: Write number of errors seen to this variable */ + char **pzOut /* OUT: Write the error message string here */ ){ Pgno i; IntegrityCk sCheck; @@ -76676,42 +81111,36 @@ SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck( assert( p->inTrans>TRANS_NONE && pBt->inTransaction>TRANS_NONE ); VVA_ONLY( nRef = sqlite3PagerRefcount(pBt->pPager) ); assert( nRef>=0 ); + memset(&sCheck, 0, sizeof(sCheck)); sCheck.db = db; sCheck.pBt = pBt; sCheck.pPager = pBt->pPager; - sCheck.nPage = btreePagecount(sCheck.pBt); + sCheck.nCkPage = btreePagecount(sCheck.pBt); sCheck.mxErr = mxErr; - sCheck.nErr = 0; - sCheck.bOomFault = 0; - sCheck.zPfx = 0; - sCheck.v1 = 0; - sCheck.v2 = 0; - sCheck.aPgRef = 0; - sCheck.heap = 0; sqlite3StrAccumInit(&sCheck.errMsg, 0, zErr, sizeof(zErr), SQLITE_MAX_LENGTH); sCheck.errMsg.printfFlags = SQLITE_PRINTF_INTERNAL; - if( sCheck.nPage==0 ){ + if( sCheck.nCkPage==0 ){ goto integrity_ck_cleanup; } - sCheck.aPgRef = sqlite3MallocZero((sCheck.nPage / 8)+ 1); + sCheck.aPgRef = sqlite3MallocZero((sCheck.nCkPage / 8)+ 1); if( !sCheck.aPgRef ){ - sCheck.bOomFault = 1; + checkOom(&sCheck); goto integrity_ck_cleanup; } sCheck.heap = (u32*)sqlite3PageMalloc( pBt->pageSize ); if( sCheck.heap==0 ){ - sCheck.bOomFault = 1; + checkOom(&sCheck); goto integrity_ck_cleanup; } i = PENDING_BYTE_PAGE(pBt); - if( i<=sCheck.nPage ) setPageReferenced(&sCheck, i); + if( i<=sCheck.nCkPage ) setPageReferenced(&sCheck, i); /* Check the integrity of the freelist */ if( bCkFreelist ){ - sCheck.zPfx = "Main freelist: "; + sCheck.zPfx = "Freelist: "; checkList(&sCheck, 1, get4byte(&pBt->pPage1->aData[32]), get4byte(&pBt->pPage1->aData[36])); sCheck.zPfx = 0; @@ -76728,7 +81157,7 @@ SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck( mxInHdr = get4byte(&pBt->pPage1->aData[52]); if( mx!=mxInHdr ){ checkAppendMsg(&sCheck, - "max rootpage (%d) disagrees with header (%d)", + "max rootpage (%u) disagrees with header (%u)", mx, mxInHdr ); } @@ -76749,6 +81178,7 @@ SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck( checkPtrmap(&sCheck, aRoot[i], PTRMAP_ROOTPAGE, 0); } #endif + sCheck.v0 = aRoot[i]; checkTreePage(&sCheck, aRoot[i], ¬Used, LARGEST_INT64); } pBt->db->flags = savedDbFlags; @@ -76756,10 +81186,10 @@ SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck( /* Make sure every page in the file is referenced */ if( !bPartial ){ - for(i=1; i<=sCheck.nPage && sCheck.mxErr; i++){ + for(i=1; i<=sCheck.nCkPage && sCheck.mxErr; i++){ #ifdef SQLITE_OMIT_AUTOVACUUM if( getPageReferenced(&sCheck, i)==0 ){ - checkAppendMsg(&sCheck, "Page %d is never used", i); + checkAppendMsg(&sCheck, "Page %u: never used", i); } #else /* If the database supports auto-vacuum, make sure no tables contain @@ -76767,11 +81197,11 @@ SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck( */ if( getPageReferenced(&sCheck, i)==0 && (PTRMAP_PAGENO(pBt, i)!=i || !pBt->autoVacuum) ){ - checkAppendMsg(&sCheck, "Page %d is never used", i); + checkAppendMsg(&sCheck, "Page %u: never used", i); } if( getPageReferenced(&sCheck, i)!=0 && (PTRMAP_PAGENO(pBt, i)==i && pBt->autoVacuum) ){ - checkAppendMsg(&sCheck, "Pointer map page %d is referenced", i); + checkAppendMsg(&sCheck, "Page %u: pointer map referenced", i); } #endif } @@ -76782,16 +81212,17 @@ SQLITE_PRIVATE char *sqlite3BtreeIntegrityCheck( integrity_ck_cleanup: sqlite3PageFree(sCheck.heap); sqlite3_free(sCheck.aPgRef); - if( sCheck.bOomFault ){ + *pnErr = sCheck.nErr; + if( sCheck.nErr==0 ){ sqlite3_str_reset(&sCheck.errMsg); - sCheck.nErr++; + *pzOut = 0; + }else{ + *pzOut = sqlite3StrAccumFinish(&sCheck.errMsg); } - *pnErr = sCheck.nErr; - if( sCheck.nErr==0 ) sqlite3_str_reset(&sCheck.errMsg); /* Make sure this analysis did not leave any unref() pages. */ assert( nRef==sqlite3PagerRefcount(pBt->pPager) ); sqlite3BtreeLeave(p); - return sqlite3StrAccumFinish(&sCheck.errMsg); + return sCheck.rc; } #endif /* SQLITE_OMIT_INTEGRITY_CHECK */ @@ -77056,6 +81487,17 @@ SQLITE_PRIVATE int sqlite3BtreeIsReadonly(Btree *p){ */ SQLITE_PRIVATE int sqlite3HeaderSizeBtree(void){ return ROUND8(sizeof(MemPage)); } +/* +** If no transaction is active and the database is not a temp-db, clear +** the in-memory pager cache. +*/ +SQLITE_PRIVATE void sqlite3BtreeClearCache(Btree *p){ + BtShared *pBt = p->pBt; + if( pBt->inTransaction==TRANS_NONE ){ + sqlite3PagerClearCache(pBt->pPager); + } +} + #if !defined(SQLITE_OMIT_SHARED_CACHE) /* ** Return true if the Btree passed as the only argument is sharable. @@ -77321,13 +81763,7 @@ static int backupOnePage( assert( !isFatalError(p->rc) ); assert( iSrcPg!=PENDING_BYTE_PAGE(p->pSrc->pBt) ); assert( zSrcData ); - - /* Catch the case where the destination is an in-memory database and the - ** page sizes of the source and destination differ. - */ - if( nSrcPgsz!=nDestPgsz && sqlite3PagerIsMemdb(pDestPager) ){ - rc = SQLITE_READONLY; - } + assert( nSrcPgsz==nDestPgsz || sqlite3PagerIsMemdb(pDestPager)==0 ); /* This loop runs once for each destination page spanned by the source ** page. For each iteration, variable iOff is set to the byte offset @@ -77460,7 +81896,10 @@ SQLITE_API int sqlite3_backup_step(sqlite3_backup *p, int nPage){ pgszSrc = sqlite3BtreeGetPageSize(p->pSrc); pgszDest = sqlite3BtreeGetPageSize(p->pDest); destMode = sqlite3PagerGetJournalMode(sqlite3BtreePager(p->pDest)); - if( SQLITE_OK==rc && destMode==PAGER_JOURNALMODE_WAL && pgszSrc!=pgszDest ){ + if( SQLITE_OK==rc + && (destMode==PAGER_JOURNALMODE_WAL || sqlite3PagerIsMemdb(pDestPager)) + && pgszSrc!=pgszDest + ){ rc = SQLITE_READONLY; } @@ -77966,9 +82405,9 @@ static void vdbeMemRenderNum(int sz, char *zBuf, Mem *p){ i64 x; assert( (p->flags&MEM_Int)*2==sizeof(x) ); memcpy(&x, (char*)&p->u, (p->flags&MEM_Int)*2); - sqlite3Int64ToText(x, zBuf); + p->n = sqlite3Int64ToText(x, zBuf); #else - sqlite3Int64ToText(p->u.i, zBuf); + p->n = sqlite3Int64ToText(p->u.i, zBuf); #endif }else{ sqlite3StrAccumInit(&acc, 0, zBuf, sz, 0); @@ -77976,6 +82415,7 @@ static void vdbeMemRenderNum(int sz, char *zBuf, Mem *p){ (p->flags & MEM_IntReal)!=0 ? (double)p->u.i : p->u.r); assert( acc.zText==zBuf && acc.mxAlloc<=0 ); zBuf[acc.nChar] = 0; /* Fast version of sqlite3StrAccumFinish(&acc) */ + p->n = acc.nChar; } } @@ -78003,10 +82443,12 @@ static void vdbeMemRenderNum(int sz, char *zBuf, Mem *p){ ** This routine is for use inside of assert() statements only. */ SQLITE_PRIVATE int sqlite3VdbeMemValidStrRep(Mem *p){ + Mem tmp; char zBuf[100]; char *z; int i, j, incr; if( (p->flags & MEM_Str)==0 ) return 1; + if( p->db && p->db->mallocFailed ) return 1; if( p->flags & MEM_Term ){ /* Insure that the string is properly zero-terminated. Pay particular ** attention to the case where p->n is odd */ @@ -78019,7 +82461,8 @@ SQLITE_PRIVATE int sqlite3VdbeMemValidStrRep(Mem *p){ assert( p->enc==SQLITE_UTF8 || p->z[((p->n+1)&~1)+1]==0 ); } if( (p->flags & (MEM_Int|MEM_Real|MEM_IntReal))==0 ) return 1; - vdbeMemRenderNum(sizeof(zBuf), zBuf, p); + memcpy(&tmp, p, sizeof(tmp)); + vdbeMemRenderNum(sizeof(zBuf), zBuf, &tmp); z = p->z; i = j = 0; incr = 1; @@ -78163,6 +82606,40 @@ SQLITE_PRIVATE int sqlite3VdbeMemClearAndResize(Mem *pMem, int szNew){ } /* +** If pMem is already a string, detect if it is a zero-terminated +** string, or make it into one if possible, and mark it as such. +** +** This is an optimization. Correct operation continues even if +** this routine is a no-op. +*/ +SQLITE_PRIVATE void sqlite3VdbeMemZeroTerminateIfAble(Mem *pMem){ + if( (pMem->flags & (MEM_Str|MEM_Term|MEM_Ephem|MEM_Static))!=MEM_Str ){ + /* pMem must be a string, and it cannot be an ephemeral or static string */ + return; + } + if( pMem->enc!=SQLITE_UTF8 ) return; + if( NEVER(pMem->z==0) ) return; + if( pMem->flags & MEM_Dyn ){ + if( pMem->xDel==sqlite3_free + && sqlite3_msize(pMem->z) >= (u64)(pMem->n+1) + ){ + pMem->z[pMem->n] = 0; + pMem->flags |= MEM_Term; + return; + } + if( pMem->xDel==sqlite3RCStrUnref ){ + /* Blindly assume that all RCStr objects are zero-terminated */ + pMem->flags |= MEM_Term; + return; + } + }else if( pMem->szMalloc >= pMem->n+1 ){ + pMem->z[pMem->n] = 0; + pMem->flags |= MEM_Term; + return; + } +} + +/* ** It is already known that pMem contains an unterminated string. ** Add the zero terminator. ** @@ -78288,7 +82765,7 @@ SQLITE_PRIVATE int sqlite3VdbeMemStringify(Mem *pMem, u8 enc, u8 bForce){ vdbeMemRenderNum(nByte, pMem->z, pMem); assert( pMem->z!=0 ); - pMem->n = sqlite3Strlen30NN(pMem->z); + assert( pMem->n==(int)sqlite3Strlen30NN(pMem->z) ); pMem->enc = SQLITE_UTF8; pMem->flags |= MEM_Str|MEM_Term; if( bForce ) pMem->flags &= ~(MEM_Int|MEM_Real|MEM_IntReal); @@ -78309,9 +82786,10 @@ SQLITE_PRIVATE int sqlite3VdbeMemFinalize(Mem *pMem, FuncDef *pFunc){ Mem t; assert( pFunc!=0 ); assert( pMem!=0 ); + assert( pMem->db!=0 ); assert( pFunc->xFinalize!=0 ); assert( (pMem->flags & MEM_Null)!=0 || pFunc==pMem->u.pDef ); - assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) ); + assert( sqlite3_mutex_held(pMem->db->mutex) ); memset(&ctx, 0, sizeof(ctx)); memset(&t, 0, sizeof(t)); t.flags = MEM_Null; @@ -78319,6 +82797,7 @@ SQLITE_PRIVATE int sqlite3VdbeMemFinalize(Mem *pMem, FuncDef *pFunc){ ctx.pOut = &t; ctx.pMem = pMem; ctx.pFunc = pFunc; + ctx.enc = ENC(t.db); pFunc->xFinalize(&ctx); /* IMP: R-24505-23230 */ assert( (pMem->flags & MEM_Dyn)==0 ); if( pMem->szMalloc>0 ) sqlite3DbFreeNN(pMem->db, pMem->zMalloc); @@ -78340,12 +82819,14 @@ SQLITE_PRIVATE int sqlite3VdbeMemAggValue(Mem *pAccum, Mem *pOut, FuncDef *pFunc assert( pFunc!=0 ); assert( pFunc->xValue!=0 ); assert( (pAccum->flags & MEM_Null)!=0 || pFunc==pAccum->u.pDef ); - assert( pAccum->db==0 || sqlite3_mutex_held(pAccum->db->mutex) ); + assert( pAccum->db!=0 ); + assert( sqlite3_mutex_held(pAccum->db->mutex) ); memset(&ctx, 0, sizeof(ctx)); sqlite3VdbeMemSetNull(pOut); ctx.pOut = pOut; ctx.pMem = pAccum; ctx.pFunc = pFunc; + ctx.enc = ENC(pAccum->db); pFunc->xValue(&ctx); return ctx.isError; } @@ -78411,34 +82892,12 @@ SQLITE_PRIVATE void sqlite3VdbeMemRelease(Mem *p){ } } -/* -** Convert a 64-bit IEEE double into a 64-bit signed integer. -** If the double is out of range of a 64-bit signed integer then -** return the closest available 64-bit signed integer. +/* Like sqlite3VdbeMemRelease() but faster for cases where we +** know in advance that the Mem is not MEM_Dyn or MEM_Agg. */ -static SQLITE_NOINLINE i64 doubleToInt64(double r){ -#ifdef SQLITE_OMIT_FLOATING_POINT - /* When floating-point is omitted, double and int64 are the same thing */ - return r; -#else - /* - ** Many compilers we encounter do not define constants for the - ** minimum and maximum 64-bit integers, or they define them - ** inconsistently. And many do not understand the "LL" notation. - ** So we define our own static constants here using nothing - ** larger than a 32-bit integer constant. - */ - static const i64 maxInt = LARGEST_INT64; - static const i64 minInt = SMALLEST_INT64; - - if( r<=(double)minInt ){ - return minInt; - }else if( r>=(double)maxInt ){ - return maxInt; - }else{ - return (i64)r; - } -#endif +SQLITE_PRIVATE void sqlite3VdbeMemReleaseMalloc(Mem *p){ + assert( !VdbeMemDynamic(p) ); + if( p->szMalloc ) vdbeMemClear(p); } /* @@ -78467,7 +82926,7 @@ SQLITE_PRIVATE i64 sqlite3VdbeIntValue(const Mem *pMem){ testcase( flags & MEM_IntReal ); return pMem->u.i; }else if( flags & MEM_Real ){ - return doubleToInt64(pMem->u.r); + return sqlite3RealToI64(pMem->u.r); }else if( (flags & (MEM_Str|MEM_Blob))!=0 && pMem->z!=0 ){ return memIntValue(pMem); }else{ @@ -78516,32 +82975,35 @@ SQLITE_PRIVATE int sqlite3VdbeBooleanValue(Mem *pMem, int ifNull){ } /* -** The MEM structure is already a MEM_Real. Try to also make it a -** MEM_Int if we can. +** The MEM structure is already a MEM_Real or MEM_IntReal. Try to +** make it a MEM_Int if we can. */ SQLITE_PRIVATE void sqlite3VdbeIntegerAffinity(Mem *pMem){ - i64 ix; assert( pMem!=0 ); - assert( pMem->flags & MEM_Real ); + assert( pMem->flags & (MEM_Real|MEM_IntReal) ); assert( !sqlite3VdbeMemIsRowSet(pMem) ); assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) ); assert( EIGHT_BYTE_ALIGNMENT(pMem) ); - ix = doubleToInt64(pMem->u.r); - - /* Only mark the value as an integer if - ** - ** (1) the round-trip conversion real->int->real is a no-op, and - ** (2) The integer is neither the largest nor the smallest - ** possible integer (ticket #3922) - ** - ** The second and third terms in the following conditional enforces - ** the second condition under the assumption that addition overflow causes - ** values to wrap around. - */ - if( pMem->u.r==ix && ix>SMALLEST_INT64 && ix<LARGEST_INT64 ){ - pMem->u.i = ix; + if( pMem->flags & MEM_IntReal ){ MemSetTypeFlag(pMem, MEM_Int); + }else{ + i64 ix = sqlite3RealToI64(pMem->u.r); + + /* Only mark the value as an integer if + ** + ** (1) the round-trip conversion real->int->real is a no-op, and + ** (2) The integer is neither the largest nor the smallest + ** possible integer (ticket #3922) + ** + ** The second and third terms in the following conditional enforces + ** the second condition under the assumption that addition overflow causes + ** values to wrap around. + */ + if( pMem->u.r==ix && ix>SMALLEST_INT64 && ix<LARGEST_INT64 ){ + pMem->u.i = ix; + MemSetTypeFlag(pMem, MEM_Int); + } } } @@ -78589,6 +83051,16 @@ SQLITE_PRIVATE int sqlite3RealSameAsInt(double r1, sqlite3_int64 i){ && i >= -2251799813685248LL && i < 2251799813685248LL); } +/* Convert a floating point value to its closest integer. Do so in +** a way that avoids 'outside the range of representable values' warnings +** from UBSAN. +*/ +SQLITE_PRIVATE i64 sqlite3RealToI64(double r){ + if( r<-9223372036854774784.0 ) return SMALLEST_INT64; + if( r>+9223372036854774784.0 ) return LARGEST_INT64; + return (i64)r; +} + /* ** Convert pMem so that it has type MEM_Real or MEM_Int. ** Invalidate any prior representations. @@ -78610,7 +83082,7 @@ SQLITE_PRIVATE int sqlite3VdbeMemNumerify(Mem *pMem){ assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) ); rc = sqlite3AtoF(pMem->z, &pMem->u.r, pMem->n, pMem->enc); if( ((rc==0 || rc==1) && sqlite3Atoi64(pMem->z, &ix, pMem->n, pMem->enc)<=1) - || sqlite3RealSameAsInt(pMem->u.r, (ix = (i64)pMem->u.r)) + || sqlite3RealSameAsInt(pMem->u.r, (ix = sqlite3RealToI64(pMem->u.r))) ){ pMem->u.i = ix; MemSetTypeFlag(pMem, MEM_Int); @@ -78656,13 +83128,17 @@ SQLITE_PRIVATE int sqlite3VdbeMemCast(Mem *pMem, u8 aff, u8 encoding){ break; } default: { + int rc; assert( aff==SQLITE_AFF_TEXT ); assert( MEM_Str==(MEM_Blob>>3) ); pMem->flags |= (pMem->flags&MEM_Blob)>>3; sqlite3ValueApplyAffinity(pMem, SQLITE_AFF_TEXT, encoding); assert( pMem->flags & MEM_Str || pMem->db->mallocFailed ); pMem->flags &= ~(MEM_Int|MEM_Real|MEM_IntReal|MEM_Blob|MEM_Zero); - return sqlite3VdbeChangeEncoding(pMem, encoding); + if( encoding!=SQLITE_UTF8 ) pMem->n &= ~1; + rc = sqlite3VdbeChangeEncoding(pMem, encoding); + if( rc ) return rc; + sqlite3VdbeMemZeroTerminateIfAble(pMem); } } return SQLITE_OK; @@ -78955,6 +83431,13 @@ SQLITE_PRIVATE void sqlite3VdbeMemMove(Mem *pTo, Mem *pFrom){ ** stored without allocating memory, then it is. If a memory allocation ** is required to store the string, then value of pMem is unchanged. In ** either case, SQLITE_TOOBIG is returned. +** +** The "enc" parameter is the text encoding for the string, or zero +** to store a blob. +** +** If n is negative, then the string consists of all bytes up to but +** excluding the first zero character. The n parameter must be +** non-negative for blobs. */ SQLITE_PRIVATE int sqlite3VdbeMemSetStr( Mem *pMem, /* Memory cell to set to string value */ @@ -78965,11 +83448,12 @@ SQLITE_PRIVATE int sqlite3VdbeMemSetStr( ){ i64 nByte = n; /* New value for pMem->n */ int iLimit; /* Maximum allowed string or blob size */ - u16 flags = 0; /* New value for pMem->flags */ + u16 flags; /* New value for pMem->flags */ assert( pMem!=0 ); assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) ); assert( !sqlite3VdbeMemIsRowSet(pMem) ); + assert( enc!=0 || n>=0 ); /* If z is a NULL pointer, set pMem to contain an SQL NULL. */ if( !z ){ @@ -78982,7 +83466,6 @@ SQLITE_PRIVATE int sqlite3VdbeMemSetStr( }else{ iLimit = SQLITE_MAX_LENGTH; } - flags = (enc==0?MEM_Blob:MEM_Str); if( nByte<0 ){ assert( enc!=0 ); if( enc==SQLITE_UTF8 ){ @@ -78990,7 +83473,23 @@ SQLITE_PRIVATE int sqlite3VdbeMemSetStr( }else{ for(nByte=0; nByte<=iLimit && (z[nByte] | z[nByte+1]); nByte+=2){} } - flags |= MEM_Term; + flags= MEM_Str|MEM_Term; + }else if( enc==0 ){ + flags = MEM_Blob; + enc = SQLITE_UTF8; + }else{ + flags = MEM_Str; + } + if( nByte>iLimit ){ + if( xDel && xDel!=SQLITE_TRANSIENT ){ + if( xDel==SQLITE_DYNAMIC ){ + sqlite3DbFree(pMem->db, (void*)z); + }else{ + xDel((void*)z); + } + } + sqlite3VdbeMemSetNull(pMem); + return sqlite3ErrorToParser(pMem->db, SQLITE_TOOBIG); } /* The following block sets the new values of Mem.z and Mem.xDel. It @@ -79002,9 +83501,6 @@ SQLITE_PRIVATE int sqlite3VdbeMemSetStr( if( flags&MEM_Term ){ nAlloc += (enc==SQLITE_UTF8?1:2); } - if( nByte>iLimit ){ - return sqlite3ErrorToParser(pMem->db, SQLITE_TOOBIG); - } testcase( nAlloc==0 ); testcase( nAlloc==31 ); testcase( nAlloc==32 ); @@ -79026,16 +83522,7 @@ SQLITE_PRIVATE int sqlite3VdbeMemSetStr( pMem->n = (int)(nByte & 0x7fffffff); pMem->flags = flags; - if( enc ){ - pMem->enc = enc; -#ifdef SQLITE_ENABLE_SESSION - }else if( pMem->db==0 ){ - pMem->enc = SQLITE_UTF8; -#endif - }else{ - assert( pMem->db!=0 ); - pMem->enc = ENC(pMem->db); - } + pMem->enc = enc; #ifndef SQLITE_OMIT_UTF16 if( enc>SQLITE_UTF8 && sqlite3VdbeMemHandleBom(pMem) ){ @@ -79043,9 +83530,6 @@ SQLITE_PRIVATE int sqlite3VdbeMemSetStr( } #endif - if( nByte>iLimit ){ - return sqlite3ErrorToParser(pMem->db, SQLITE_TOOBIG); - } return SQLITE_OK; } @@ -79178,6 +83662,24 @@ SQLITE_PRIVATE const void *sqlite3ValueText(sqlite3_value* pVal, u8 enc){ return valueToText(pVal, enc); } +/* Return true if sqlit3_value object pVal is a string or blob value +** that uses the destructor specified in the second argument. +** +** TODO: Maybe someday promote this interface into a published API so +** that third-party extensions can get access to it? +*/ +SQLITE_PRIVATE int sqlite3ValueIsOfClass(const sqlite3_value *pVal, void(*xFree)(void*)){ + if( ALWAYS(pVal!=0) + && ALWAYS((pVal->flags & (MEM_Str|MEM_Blob))!=0) + && (pVal->flags & MEM_Dyn)!=0 + && pVal->xDel==xFree + ){ + return 1; + }else{ + return 0; + } +} + /* ** Create a new sqlite3_value object. */ @@ -79245,6 +83747,7 @@ static sqlite3_value *valueNew(sqlite3 *db, struct ValueNewStat4Ctx *p){ } pRec->nField = p->iVal+1; + sqlite3VdbeMemSetNull(&pRec->aMem[p->iVal]); return &pRec->aMem[p->iVal]; } #else @@ -79298,9 +83801,12 @@ static int valueFromFunction( if( pList ) nVal = pList->nExpr; assert( !ExprHasProperty(p, EP_IntValue) ); pFunc = sqlite3FindFunction(db, p->u.zToken, nVal, enc, 0); +#ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION + if( pFunc==0 ) return SQLITE_OK; +#endif assert( pFunc ); if( (pFunc->funcFlags & (SQLITE_FUNC_CONSTANT|SQLITE_FUNC_SLOCHNG))==0 - || (pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL) + || (pFunc->funcFlags & (SQLITE_FUNC_NEEDCOLL|SQLITE_FUNC_RUNONLY))!=0 ){ return SQLITE_OK; } @@ -79323,10 +83829,10 @@ static int valueFromFunction( goto value_from_function_out; } - assert( pCtx->pParse->rc==SQLITE_OK ); memset(&ctx, 0, sizeof(ctx)); ctx.pOut = pVal; ctx.pFunc = pFunc; + ctx.enc = ENC(db); pFunc->xSFunc(&ctx, nVal, apVal); if( ctx.isError ){ rc = ctx.isError; @@ -79335,16 +83841,16 @@ static int valueFromFunction( sqlite3ValueApplyAffinity(pVal, aff, SQLITE_UTF8); assert( rc==SQLITE_OK ); rc = sqlite3VdbeChangeEncoding(pVal, enc); - if( rc==SQLITE_OK && sqlite3VdbeMemTooBig(pVal) ){ + if( NEVER(rc==SQLITE_OK && sqlite3VdbeMemTooBig(pVal)) ){ rc = SQLITE_TOOBIG; pCtx->pParse->nErr++; } } - pCtx->pParse->rc = rc; value_from_function_out: if( rc!=SQLITE_OK ){ pVal = 0; + pCtx->pParse->rc = rc; } if( apVal ){ for(i=0; i<nVal; i++){ @@ -79402,8 +83908,15 @@ static int valueFromExpr( rc = valueFromExpr(db, pExpr->pLeft, enc, aff, ppVal, pCtx); testcase( rc!=SQLITE_OK ); if( *ppVal ){ - sqlite3VdbeMemCast(*ppVal, aff, SQLITE_UTF8); - sqlite3ValueApplyAffinity(*ppVal, affinity, SQLITE_UTF8); +#ifdef SQLITE_ENABLE_STAT4 + rc = ExpandBlob(*ppVal); +#else + /* zero-blobs only come from functions, not literal values. And + ** functions are only processed under STAT4 */ + assert( (ppVal[0][0].flags & MEM_Zero)==0 ); +#endif + sqlite3VdbeMemCast(*ppVal, aff, enc); + sqlite3ValueApplyAffinity(*ppVal, affinity, enc); } return rc; } @@ -79494,6 +84007,7 @@ static int valueFromExpr( if( pVal ){ pVal->flags = MEM_Int; pVal->u.i = pExpr->u.zToken[4]==0; + sqlite3ValueApplyAffinity(pVal, affinity, enc); } } @@ -79787,6 +84301,9 @@ SQLITE_PRIVATE int sqlite3ValueBytes(sqlite3_value *pVal, u8 enc){ if( (p->flags & MEM_Str)!=0 && pVal->enc==enc ){ return p->n; } + if( (p->flags & MEM_Str)!=0 && enc!=SQLITE_UTF8 && pVal->enc!=SQLITE_UTF8 ){ + return p->n; + } if( (p->flags & MEM_Blob)!=0 ){ if( p->flags & MEM_Zero ){ return p->n + p->u.nZero; @@ -79832,12 +84349,12 @@ SQLITE_PRIVATE Vdbe *sqlite3VdbeCreate(Parse *pParse){ memset(&p->aOp, 0, sizeof(Vdbe)-offsetof(Vdbe,aOp)); p->db = db; if( db->pVdbe ){ - db->pVdbe->pPrev = p; + db->pVdbe->ppVPrev = &p->pVNext; } - p->pNext = db->pVdbe; - p->pPrev = 0; + p->pVNext = db->pVdbe; + p->ppVPrev = &db->pVdbe; db->pVdbe = p; - p->iVdbeMagic = VDBE_MAGIC_INIT; + assert( p->eVdbeState==VDBE_INIT_STATE ); p->pParse = pParse; pParse->pVdbe = p; assert( pParse->aLabel==0 ); @@ -79917,21 +84434,28 @@ SQLITE_PRIVATE int sqlite3VdbeUsesDoubleQuotedString( #endif /* -** Swap all content between two VDBE structures. +** Swap byte-code between two VDBE structures. +** +** This happens after pB was previously run and returned +** SQLITE_SCHEMA. The statement was then reprepared in pA. +** This routine transfers the new bytecode in pA over to pB +** so that pB can be run again. The old pB byte code is +** moved back to pA so that it will be cleaned up when pA is +** finalized. */ SQLITE_PRIVATE void sqlite3VdbeSwap(Vdbe *pA, Vdbe *pB){ - Vdbe tmp, *pTmp; + Vdbe tmp, *pTmp, **ppTmp; char *zTmp; assert( pA->db==pB->db ); tmp = *pA; *pA = *pB; *pB = tmp; - pTmp = pA->pNext; - pA->pNext = pB->pNext; - pB->pNext = pTmp; - pTmp = pA->pPrev; - pA->pPrev = pB->pPrev; - pB->pPrev = pTmp; + pTmp = pA->pVNext; + pA->pVNext = pB->pVNext; + pB->pVNext = pTmp; + ppTmp = pA->ppVPrev; + pA->ppVPrev = pB->ppVPrev; + pB->ppVPrev = ppTmp; zTmp = pA->zSql; pA->zSql = pB->zSql; pB->zSql = zTmp; @@ -79982,7 +84506,7 @@ static int growOpArray(Vdbe *v, int nOp){ return SQLITE_NOMEM; } - assert( nOp<=(1024/sizeof(Op)) ); + assert( nOp<=(int)(1024/sizeof(Op)) ); assert( nNew>=(v->nOpAlloc+nOp) ); pNew = sqlite3DbRealloc(p->db, v->aOp, nNew*sizeof(Op)); if( pNew ){ @@ -80006,12 +84530,44 @@ static int growOpArray(Vdbe *v, int nOp){ ** sqlite3CantopenError(lineno) */ static void test_addop_breakpoint(int pc, Op *pOp){ - static int n = 0; + static u64 n = 0; + (void)pc; + (void)pOp; n++; + if( n==LARGEST_UINT64 ) abort(); /* so that n is used, preventing a warning */ } #endif /* +** Slow paths for sqlite3VdbeAddOp3() and sqlite3VdbeAddOp4Int() for the +** unusual case when we need to increase the size of the Vdbe.aOp[] array +** before adding the new opcode. +*/ +static SQLITE_NOINLINE int growOp3(Vdbe *p, int op, int p1, int p2, int p3){ + assert( p->nOpAlloc<=p->nOp ); + if( growOpArray(p, 1) ) return 1; + assert( p->nOpAlloc>p->nOp ); + return sqlite3VdbeAddOp3(p, op, p1, p2, p3); +} +static SQLITE_NOINLINE int addOp4IntSlow( + Vdbe *p, /* Add the opcode to this VM */ + int op, /* The new opcode */ + int p1, /* The P1 operand */ + int p2, /* The P2 operand */ + int p3, /* The P3 operand */ + int p4 /* The P4 operand as an integer */ +){ + int addr = sqlite3VdbeAddOp3(p, op, p1, p2, p3); + if( p->db->mallocFailed==0 ){ + VdbeOp *pOp = &p->aOp[addr]; + pOp->p4type = P4_INT32; + pOp->p4.i = p4; + } + return addr; +} + + +/* ** Add a new instruction to the list of instructions current in the ** VDBE. Return the address of the new instruction. ** @@ -80021,24 +84577,23 @@ static void test_addop_breakpoint(int pc, Op *pOp){ ** ** op The opcode for this instruction ** -** p1, p2, p3 Operands -** -** Use the sqlite3VdbeResolveLabel() function to fix an address and -** the sqlite3VdbeChangeP4() function to change the value of the P4 -** operand. +** p1, p2, p3, p4 Operands */ -static SQLITE_NOINLINE int growOp3(Vdbe *p, int op, int p1, int p2, int p3){ - assert( p->nOpAlloc<=p->nOp ); - if( growOpArray(p, 1) ) return 1; - assert( p->nOpAlloc>p->nOp ); - return sqlite3VdbeAddOp3(p, op, p1, p2, p3); +SQLITE_PRIVATE int sqlite3VdbeAddOp0(Vdbe *p, int op){ + return sqlite3VdbeAddOp3(p, op, 0, 0, 0); +} +SQLITE_PRIVATE int sqlite3VdbeAddOp1(Vdbe *p, int op, int p1){ + return sqlite3VdbeAddOp3(p, op, p1, 0, 0); +} +SQLITE_PRIVATE int sqlite3VdbeAddOp2(Vdbe *p, int op, int p1, int p2){ + return sqlite3VdbeAddOp3(p, op, p1, p2, 0); } SQLITE_PRIVATE int sqlite3VdbeAddOp3(Vdbe *p, int op, int p1, int p2, int p3){ int i; VdbeOp *pOp; i = p->nOp; - assert( p->iVdbeMagic==VDBE_MAGIC_INIT ); + assert( p->eVdbeState==VDBE_INIT_STATE ); assert( op>=0 && op<0xff ); if( p->nOpAlloc<=i ){ return growOp3(p, op, p1, p2, p3); @@ -80054,32 +84609,78 @@ SQLITE_PRIVATE int sqlite3VdbeAddOp3(Vdbe *p, int op, int p1, int p2, int p3){ pOp->p3 = p3; pOp->p4.p = 0; pOp->p4type = P4_NOTUSED; + + /* Replicate this logic in sqlite3VdbeAddOp4Int() + ** vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv */ #ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS pOp->zComment = 0; #endif +#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || defined(VDBE_PROFILE) + pOp->nExec = 0; + pOp->nCycle = 0; +#endif #ifdef SQLITE_DEBUG if( p->db->flags & SQLITE_VdbeAddopTrace ){ sqlite3VdbePrintOp(0, i, &p->aOp[i]); test_addop_breakpoint(i, &p->aOp[i]); } #endif -#ifdef VDBE_PROFILE - pOp->cycles = 0; - pOp->cnt = 0; -#endif #ifdef SQLITE_VDBE_COVERAGE pOp->iSrcLine = 0; #endif + /* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + ** Replicate in sqlite3VdbeAddOp4Int() */ + return i; } -SQLITE_PRIVATE int sqlite3VdbeAddOp0(Vdbe *p, int op){ - return sqlite3VdbeAddOp3(p, op, 0, 0, 0); -} -SQLITE_PRIVATE int sqlite3VdbeAddOp1(Vdbe *p, int op, int p1){ - return sqlite3VdbeAddOp3(p, op, p1, 0, 0); -} -SQLITE_PRIVATE int sqlite3VdbeAddOp2(Vdbe *p, int op, int p1, int p2){ - return sqlite3VdbeAddOp3(p, op, p1, p2, 0); +SQLITE_PRIVATE int sqlite3VdbeAddOp4Int( + Vdbe *p, /* Add the opcode to this VM */ + int op, /* The new opcode */ + int p1, /* The P1 operand */ + int p2, /* The P2 operand */ + int p3, /* The P3 operand */ + int p4 /* The P4 operand as an integer */ +){ + int i; + VdbeOp *pOp; + + i = p->nOp; + if( p->nOpAlloc<=i ){ + return addOp4IntSlow(p, op, p1, p2, p3, p4); + } + p->nOp++; + pOp = &p->aOp[i]; + assert( pOp!=0 ); + pOp->opcode = (u8)op; + pOp->p5 = 0; + pOp->p1 = p1; + pOp->p2 = p2; + pOp->p3 = p3; + pOp->p4.i = p4; + pOp->p4type = P4_INT32; + + /* Replicate this logic in sqlite3VdbeAddOp3() + ** vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv */ +#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS + pOp->zComment = 0; +#endif +#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || defined(VDBE_PROFILE) + pOp->nExec = 0; + pOp->nCycle = 0; +#endif +#ifdef SQLITE_DEBUG + if( p->db->flags & SQLITE_VdbeAddopTrace ){ + sqlite3VdbePrintOp(0, i, &p->aOp[i]); + test_addop_breakpoint(i, &p->aOp[i]); + } +#endif +#ifdef SQLITE_VDBE_COVERAGE + pOp->iSrcLine = 0; +#endif + /* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + ** Replicate in sqlite3VdbeAddOp3() */ + + return i; } /* Generate code for an unconditional jump to instruction iDest @@ -80183,6 +84784,7 @@ SQLITE_PRIVATE int sqlite3VdbeAddFunctionCall( addr = sqlite3VdbeAddOp4(v, eCallCtx ? OP_PureFunc : OP_Function, p1, p2, p3, (char*)pCtx, P4_FUNCCTX); sqlite3VdbeChangeP5(v, eCallCtx & NC_SelfRef); + sqlite3MayAbort(pParse); return addr; } @@ -80233,11 +84835,12 @@ SQLITE_PRIVATE void sqlite3ExplainBreakpoint(const char *z1, const char *z2){ ** If the bPush flag is true, then make this opcode the parent for ** subsequent Explains until sqlite3VdbeExplainPop() is called. */ -SQLITE_PRIVATE void sqlite3VdbeExplain(Parse *pParse, u8 bPush, const char *zFmt, ...){ -#ifndef SQLITE_DEBUG +SQLITE_PRIVATE int sqlite3VdbeExplain(Parse *pParse, u8 bPush, const char *zFmt, ...){ + int addr = 0; +#if !defined(SQLITE_DEBUG) /* Always include the OP_Explain opcodes if SQLITE_DEBUG is defined. ** But omit them (for performance) during production builds */ - if( pParse->explain==2 ) + if( pParse->explain==2 || IS_STMT_SCANSTATUS(pParse->db) ) #endif { char *zMsg; @@ -80249,13 +84852,15 @@ SQLITE_PRIVATE void sqlite3VdbeExplain(Parse *pParse, u8 bPush, const char *zFmt va_end(ap); v = pParse->pVdbe; iThis = v->nOp; - sqlite3VdbeAddOp4(v, OP_Explain, iThis, pParse->addrExplain, 0, + addr = sqlite3VdbeAddOp4(v, OP_Explain, iThis, pParse->addrExplain, 0, zMsg, P4_DYNAMIC); - sqlite3ExplainBreakpoint(bPush?"PUSH":"", sqlite3VdbeGetOp(v,-1)->p4.z); + sqlite3ExplainBreakpoint(bPush?"PUSH":"", sqlite3VdbeGetLastOp(v)->p4.z); if( bPush){ pParse->addrExplain = iThis; } + sqlite3VdbeScanStatus(v, iThis, -1, -1, 0, 0); } + return addr; } /* @@ -80283,26 +84888,6 @@ SQLITE_PRIVATE void sqlite3VdbeAddParseSchemaOp(Vdbe *p, int iDb, char *zWhere, sqlite3MayAbort(p->pParse); } -/* -** Add an opcode that includes the p4 value as an integer. -*/ -SQLITE_PRIVATE int sqlite3VdbeAddOp4Int( - Vdbe *p, /* Add the opcode to this VM */ - int op, /* The new opcode */ - int p1, /* The P1 operand */ - int p2, /* The P2 operand */ - int p3, /* The P3 operand */ - int p4 /* The P4 operand as an integer */ -){ - int addr = sqlite3VdbeAddOp3(p, op, p1, p2, p3); - if( p->db->mallocFailed==0 ){ - VdbeOp *pOp = &p->aOp[addr]; - pOp->p4type = P4_INT32; - pOp->p4.i = p4; - } - return addr; -} - /* Insert the end of a co-routine */ SQLITE_PRIVATE void sqlite3VdbeEndCoroutine(Vdbe *v, int regYield){ @@ -80363,6 +84948,9 @@ static SQLITE_NOINLINE void resizeResolveLabel(Parse *p, Vdbe *v, int j){ int i; for(i=p->nLabelAlloc; i<nNewSize; i++) p->aLabel[i] = -1; #endif + if( nNewSize>=100 && (nNewSize/100)>(p->nLabelAlloc/100) ){ + sqlite3ProgressCheck(p); + } p->nLabelAlloc = nNewSize; p->aLabel[j] = v->nOp; } @@ -80370,7 +84958,7 @@ static SQLITE_NOINLINE void resizeResolveLabel(Parse *p, Vdbe *v, int j){ SQLITE_PRIVATE void sqlite3VdbeResolveLabel(Vdbe *v, int x){ Parse *p = v->pParse; int j = ADDR(x); - assert( v->iVdbeMagic==VDBE_MAGIC_INIT ); + assert( v->eVdbeState==VDBE_INIT_STATE ); assert( j<-p->nLabel ); assert( j>=0 ); #ifdef SQLITE_DEBUG @@ -80390,14 +84978,20 @@ SQLITE_PRIVATE void sqlite3VdbeResolveLabel(Vdbe *v, int x){ ** Mark the VDBE as one that can only be run one time. */ SQLITE_PRIVATE void sqlite3VdbeRunOnlyOnce(Vdbe *p){ - p->runOnlyOnce = 1; + sqlite3VdbeAddOp2(p, OP_Expire, 1, 1); } /* -** Mark the VDBE as one that can only be run multiple times. +** Mark the VDBE as one that can be run multiple times. */ SQLITE_PRIVATE void sqlite3VdbeReusable(Vdbe *p){ - p->runOnlyOnce = 0; + int i; + for(i=1; ALWAYS(i<p->nOp); i++){ + if( ALWAYS(p->aOp[i].opcode==OP_Expire) ){ + p->aOp[1].opcode = OP_Noop; + break; + } + } } #ifdef SQLITE_DEBUG /* sqlite3AssertMayAbort() logic */ @@ -80501,6 +85095,8 @@ SQLITE_PRIVATE int sqlite3VdbeAssertMayAbort(Vdbe *v, int mayAbort){ int hasInitCoroutine = 0; Op *pOp; VdbeOpIter sIter; + + if( v==0 ) return 0; memset(&sIter, 0, sizeof(sIter)); sIter.v = v; @@ -80510,6 +85106,7 @@ SQLITE_PRIVATE int sqlite3VdbeAssertMayAbort(Vdbe *v, int mayAbort){ || opcode==OP_VDestroy || opcode==OP_VCreate || opcode==OP_ParseSchema + || opcode==OP_Function || opcode==OP_PureFunc || ((opcode==OP_Halt || opcode==OP_HaltIfNull) && ((pOp->p1)!=SQLITE_OK && pOp->p2==OE_Abort)) ){ @@ -80584,7 +85181,7 @@ SQLITE_PRIVATE void sqlite3VdbeAssertAbortable(Vdbe *p){ ** (3) Update the Vdbe.readOnly and Vdbe.bIsReader flags to accurately ** indicate what the prepared statement actually does. ** -** (4) Initialize the p4.xAdvance pointer on opcodes that use it. +** (4) (discontinued) ** ** (5) Reclaim the memory allocated for storing labels. ** @@ -80597,11 +85194,13 @@ static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){ Op *pOp; Parse *pParse = p->pParse; int *aLabel = pParse->aLabel; + + assert( pParse->db->mallocFailed==0 ); /* tag-20230419-1 */ p->readOnly = 1; p->bIsReader = 0; pOp = &p->aOp[p->nOp-1]; - while(1){ - + assert( p->aOp[0].opcode==OP_Init ); + while( 1 /* Loop terminates when it reaches the OP_Init opcode */ ){ /* Only JUMP opcodes and the short list of special opcodes in the switch ** below need to be considered. The mkopcodeh.tcl generator script groups ** all these opcodes together near the front of the opcode list. Skip @@ -80630,24 +85229,9 @@ static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){ p->bIsReader = 1; break; } - case OP_Next: - case OP_SorterNext: { - pOp->p4.xAdvance = sqlite3BtreeNext; - pOp->p4type = P4_ADVANCE; - /* The code generator never codes any of these opcodes as a jump - ** to a label. They are always coded as a jump backwards to a - ** known address */ + case OP_Init: { assert( pOp->p2>=0 ); - break; - } - case OP_Prev: { - pOp->p4.xAdvance = sqlite3BtreePrevious; - pOp->p4type = P4_ADVANCE; - /* The code generator never codes any of these opcodes as a jump - ** to a label. They are always coded as a jump backwards to a - ** known address */ - assert( pOp->p2>=0 ); - break; + goto resolve_p2_values_loop_exit; } #ifndef SQLITE_OMIT_VIRTUALTABLE case OP_VUpdate: { @@ -80671,6 +85255,7 @@ static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){ ** have non-negative values for P2. */ assert( (sqlite3OpcodeProperty[pOp->opcode] & OPFLG_JUMP)!=0 ); assert( ADDR(pOp->p2)<-pParse->nLabel ); + assert( aLabel!=0 ); /* True because of tag-20230419-1 */ pOp->p2 = aLabel[ADDR(pOp->p2)]; } break; @@ -80681,21 +85266,112 @@ static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){ ** have non-negative values for P2. */ assert( (sqlite3OpcodeProperty[pOp->opcode]&OPFLG_JUMP)==0 || pOp->p2>=0); } - if( pOp==p->aOp ) break; + assert( pOp>p->aOp ); pOp--; } - sqlite3DbFree(p->db, pParse->aLabel); - pParse->aLabel = 0; +resolve_p2_values_loop_exit: + if( aLabel ){ + sqlite3DbNNFreeNN(p->db, pParse->aLabel); + pParse->aLabel = 0; + } pParse->nLabel = 0; *pMaxFuncArgs = nMaxArgs; assert( p->bIsReader!=0 || DbMaskAllZero(p->btreeMask) ); } +#ifdef SQLITE_DEBUG +/* +** Check to see if a subroutine contains a jump to a location outside of +** the subroutine. If a jump outside the subroutine is detected, add code +** that will cause the program to halt with an error message. +** +** The subroutine consists of opcodes between iFirst and iLast. Jumps to +** locations within the subroutine are acceptable. iRetReg is a register +** that contains the return address. Jumps to outside the range of iFirst +** through iLast are also acceptable as long as the jump destination is +** an OP_Return to iReturnAddr. +** +** A jump to an unresolved label means that the jump destination will be +** beyond the current address. That is normally a jump to an early +** termination and is consider acceptable. +** +** This routine only runs during debug builds. The purpose is (of course) +** to detect invalid escapes out of a subroutine. The OP_Halt opcode +** is generated rather than an assert() or other error, so that ".eqp full" +** will still work to show the original bytecode, to aid in debugging. +*/ +SQLITE_PRIVATE void sqlite3VdbeNoJumpsOutsideSubrtn( + Vdbe *v, /* The byte-code program under construction */ + int iFirst, /* First opcode of the subroutine */ + int iLast, /* Last opcode of the subroutine */ + int iRetReg /* Subroutine return address register */ +){ + VdbeOp *pOp; + Parse *pParse; + int i; + sqlite3_str *pErr = 0; + assert( v!=0 ); + pParse = v->pParse; + assert( pParse!=0 ); + if( pParse->nErr ) return; + assert( iLast>=iFirst ); + assert( iLast<v->nOp ); + pOp = &v->aOp[iFirst]; + for(i=iFirst; i<=iLast; i++, pOp++){ + if( (sqlite3OpcodeProperty[pOp->opcode] & OPFLG_JUMP)!=0 ){ + int iDest = pOp->p2; /* Jump destination */ + if( iDest==0 ) continue; + if( pOp->opcode==OP_Gosub ) continue; + if( pOp->p3==20230325 && pOp->opcode==OP_NotNull ){ + /* This is a deliberately taken illegal branch. tag-20230325-2 */ + continue; + } + if( iDest<0 ){ + int j = ADDR(iDest); + assert( j>=0 ); + if( j>=-pParse->nLabel || pParse->aLabel[j]<0 ){ + continue; + } + iDest = pParse->aLabel[j]; + } + if( iDest<iFirst || iDest>iLast ){ + int j = iDest; + for(; j<v->nOp; j++){ + VdbeOp *pX = &v->aOp[j]; + if( pX->opcode==OP_Return ){ + if( pX->p1==iRetReg ) break; + continue; + } + if( pX->opcode==OP_Noop ) continue; + if( pX->opcode==OP_Explain ) continue; + if( pErr==0 ){ + pErr = sqlite3_str_new(0); + }else{ + sqlite3_str_appendchar(pErr, 1, '\n'); + } + sqlite3_str_appendf(pErr, + "Opcode at %d jumps to %d which is outside the " + "subroutine at %d..%d", + i, iDest, iFirst, iLast); + break; + } + } + } + } + if( pErr ){ + char *zErr = sqlite3_str_finish(pErr); + sqlite3VdbeAddOp4(v, OP_Halt, SQLITE_INTERNAL, OE_Abort, 0, zErr, 0); + sqlite3_free(zErr); + sqlite3MayAbort(pParse); + } +} +#endif /* SQLITE_DEBUG */ + /* ** Return the address of the next instruction to be inserted. */ SQLITE_PRIVATE int sqlite3VdbeCurrentAddr(Vdbe *p){ - assert( p->iVdbeMagic==VDBE_MAGIC_INIT ); + assert( p->eVdbeState==VDBE_INIT_STATE ); return p->nOp; } @@ -80780,7 +85456,7 @@ SQLITE_PRIVATE VdbeOp *sqlite3VdbeAddOpList( int i; VdbeOp *pOut, *pFirst; assert( nOp>0 ); - assert( p->iVdbeMagic==VDBE_MAGIC_INIT ); + assert( p->eVdbeState==VDBE_INIT_STATE ); if( p->nOp + nOp > p->nOpAlloc && growOpArray(p, nOp) ){ return 0; } @@ -80827,20 +85503,83 @@ SQLITE_PRIVATE void sqlite3VdbeScanStatus( LogEst nEst, /* Estimated number of output rows */ const char *zName /* Name of table or index being scanned */ ){ - sqlite3_int64 nByte = (p->nScan+1) * sizeof(ScanStatus); - ScanStatus *aNew; - aNew = (ScanStatus*)sqlite3DbRealloc(p->db, p->aScan, nByte); - if( aNew ){ - ScanStatus *pNew = &aNew[p->nScan++]; - pNew->addrExplain = addrExplain; - pNew->addrLoop = addrLoop; - pNew->addrVisit = addrVisit; - pNew->nEst = nEst; - pNew->zName = sqlite3DbStrDup(p->db, zName); - p->aScan = aNew; + if( IS_STMT_SCANSTATUS(p->db) ){ + sqlite3_int64 nByte = (p->nScan+1) * sizeof(ScanStatus); + ScanStatus *aNew; + aNew = (ScanStatus*)sqlite3DbRealloc(p->db, p->aScan, nByte); + if( aNew ){ + ScanStatus *pNew = &aNew[p->nScan++]; + memset(pNew, 0, sizeof(ScanStatus)); + pNew->addrExplain = addrExplain; + pNew->addrLoop = addrLoop; + pNew->addrVisit = addrVisit; + pNew->nEst = nEst; + pNew->zName = sqlite3DbStrDup(p->db, zName); + p->aScan = aNew; + } } } -#endif + +/* +** Add the range of instructions from addrStart to addrEnd (inclusive) to +** the set of those corresponding to the sqlite3_stmt_scanstatus() counters +** associated with the OP_Explain instruction at addrExplain. The +** sum of the sqlite3Hwtime() values for each of these instructions +** will be returned for SQLITE_SCANSTAT_NCYCLE requests. +*/ +SQLITE_PRIVATE void sqlite3VdbeScanStatusRange( + Vdbe *p, + int addrExplain, + int addrStart, + int addrEnd +){ + if( IS_STMT_SCANSTATUS(p->db) ){ + ScanStatus *pScan = 0; + int ii; + for(ii=p->nScan-1; ii>=0; ii--){ + pScan = &p->aScan[ii]; + if( pScan->addrExplain==addrExplain ) break; + pScan = 0; + } + if( pScan ){ + if( addrEnd<0 ) addrEnd = sqlite3VdbeCurrentAddr(p)-1; + for(ii=0; ii<ArraySize(pScan->aAddrRange); ii+=2){ + if( pScan->aAddrRange[ii]==0 ){ + pScan->aAddrRange[ii] = addrStart; + pScan->aAddrRange[ii+1] = addrEnd; + break; + } + } + } + } +} + +/* +** Set the addresses for the SQLITE_SCANSTAT_NLOOP and SQLITE_SCANSTAT_NROW +** counters for the query element associated with the OP_Explain at +** addrExplain. +*/ +SQLITE_PRIVATE void sqlite3VdbeScanStatusCounters( + Vdbe *p, + int addrExplain, + int addrLoop, + int addrVisit +){ + if( IS_STMT_SCANSTATUS(p->db) ){ + ScanStatus *pScan = 0; + int ii; + for(ii=p->nScan-1; ii>=0; ii--){ + pScan = &p->aScan[ii]; + if( pScan->addrExplain==addrExplain ) break; + pScan = 0; + } + if( pScan ){ + if( addrLoop>0 ) pScan->addrLoop = addrLoop; + if( addrVisit>0 ) pScan->addrVisit = addrVisit; + } + } +} +#endif /* defined(SQLITE_ENABLE_STMT_SCANSTATUS) */ /* @@ -80848,15 +85587,19 @@ SQLITE_PRIVATE void sqlite3VdbeScanStatus( ** for a specific instruction. */ SQLITE_PRIVATE void sqlite3VdbeChangeOpcode(Vdbe *p, int addr, u8 iNewOpcode){ + assert( addr>=0 ); sqlite3VdbeGetOp(p,addr)->opcode = iNewOpcode; } SQLITE_PRIVATE void sqlite3VdbeChangeP1(Vdbe *p, int addr, int val){ + assert( addr>=0 ); sqlite3VdbeGetOp(p,addr)->p1 = val; } SQLITE_PRIVATE void sqlite3VdbeChangeP2(Vdbe *p, int addr, int val){ + assert( addr>=0 || p->db->mallocFailed ); sqlite3VdbeGetOp(p,addr)->p2 = val; } SQLITE_PRIVATE void sqlite3VdbeChangeP3(Vdbe *p, int addr, int val){ + assert( addr>=0 ); sqlite3VdbeGetOp(p,addr)->p3 = val; } SQLITE_PRIVATE void sqlite3VdbeChangeP5(Vdbe *p, u16 p5){ @@ -80865,6 +85608,18 @@ SQLITE_PRIVATE void sqlite3VdbeChangeP5(Vdbe *p, u16 p5){ } /* +** If the previous opcode is an OP_Column that delivers results +** into register iDest, then add the OPFLAG_TYPEOFARG flag to that +** opcode. +*/ +SQLITE_PRIVATE void sqlite3VdbeTypeofColumn(Vdbe *p, int iDest){ + VdbeOp *pOp = sqlite3VdbeGetLastOp(p); + if( pOp->p3==iDest && pOp->opcode==OP_Column ){ + pOp->p5 |= OPFLAG_TYPEOFARG; + } +} + +/* ** Change the P2 operand of instruction addr so that it points to ** the address of the next instruction to be coded. */ @@ -80892,7 +85647,7 @@ SQLITE_PRIVATE void sqlite3VdbeJumpHereOrPopInst(Vdbe *p, int addr){ || p->aOp[addr].opcode==OP_FkIfZero ); assert( p->aOp[addr].p4type==0 ); #ifdef SQLITE_VDBE_COVERAGE - sqlite3VdbeGetOp(p,-1)->iSrcLine = 0; /* Erase VdbeCoverage() macros */ + sqlite3VdbeGetLastOp(p)->iSrcLine = 0; /* Erase VdbeCoverage() macros */ #endif p->nOp--; }else{ @@ -80903,11 +85658,12 @@ SQLITE_PRIVATE void sqlite3VdbeJumpHereOrPopInst(Vdbe *p, int addr){ /* ** If the input FuncDef structure is ephemeral, then free it. If -** the FuncDef is not ephermal, then do nothing. +** the FuncDef is not ephemeral, then do nothing. */ static void freeEphemeralFunction(sqlite3 *db, FuncDef *pDef){ + assert( db!=0 ); if( (pDef->funcFlags & SQLITE_FUNC_EPHEM)!=0 ){ - sqlite3DbFreeNN(db, pDef); + sqlite3DbNNFreeNN(db, pDef); } } @@ -80916,11 +85672,12 @@ static void freeEphemeralFunction(sqlite3 *db, FuncDef *pDef){ */ static SQLITE_NOINLINE void freeP4Mem(sqlite3 *db, Mem *p){ if( p->szMalloc ) sqlite3DbFree(db, p->zMalloc); - sqlite3DbFreeNN(db, p); + sqlite3DbNNFreeNN(db, p); } static SQLITE_NOINLINE void freeP4FuncCtx(sqlite3 *db, sqlite3_context *p){ + assert( db!=0 ); freeEphemeralFunction(db, p->pFunc); - sqlite3DbFreeNN(db, p); + sqlite3DbNNFreeNN(db, p); } static void freeP4(sqlite3 *db, int p4type, void *p4){ assert( db ); @@ -80932,9 +85689,8 @@ static void freeP4(sqlite3 *db, int p4type, void *p4){ case P4_REAL: case P4_INT64: case P4_DYNAMIC: - case P4_DYNBLOB: case P4_INTARRAY: { - sqlite3DbFree(db, p4); + if( p4 ) sqlite3DbNNFreeNN(db, p4); break; } case P4_KEYINFO: { @@ -80963,6 +85719,10 @@ static void freeP4(sqlite3 *db, int p4type, void *p4){ if( db->pnBytesFreed==0 ) sqlite3VtabUnlock((VTable *)p4); break; } + case P4_TABLEREF: { + if( db->pnBytesFreed==0 ) sqlite3DeleteTable(db, (Table*)p4); + break; + } } } @@ -80972,15 +85732,19 @@ static void freeP4(sqlite3 *db, int p4type, void *p4){ ** nOp entries. */ static void vdbeFreeOpArray(sqlite3 *db, Op *aOp, int nOp){ + assert( nOp>=0 ); + assert( db!=0 ); if( aOp ){ - Op *pOp; - for(pOp=&aOp[nOp-1]; pOp>=aOp; pOp--){ + Op *pOp = &aOp[nOp-1]; + while(1){ /* Exit via break */ if( pOp->p4type <= P4_FREE_IF_LE ) freeP4(db, pOp->p4type, pOp->p4.p); #ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS sqlite3DbFree(db, pOp->zComment); #endif + if( pOp==aOp ) break; + pOp--; } - sqlite3DbFreeNN(db, aOp); + sqlite3DbNNFreeNN(db, aOp); } } @@ -81040,7 +85804,7 @@ SQLITE_PRIVATE void sqlite3VdbeReleaseRegisters( u32 mask, /* Mask of registers to NOT release */ int bUndefine /* If true, mark registers as undefined */ ){ - if( N==0 ) return; + if( N==0 || OptimizationDisabled(pParse->db, SQLITE_ReleaseReg) ) return; assert( pParse->pVdbe ); assert( iFirst>=1 ); assert( iFirst+N-1<=pParse->nMem ); @@ -81062,7 +85826,6 @@ SQLITE_PRIVATE void sqlite3VdbeReleaseRegisters( } #endif /* SQLITE_DEBUG */ - /* ** Change the value of the P4 operand for a specific instruction. ** This routine is useful when a large program is loaded from a @@ -81087,7 +85850,7 @@ static void SQLITE_NOINLINE vdbeChangeP4Full( int n ){ if( pOp->p4type ){ - freeP4(p->db, pOp->p4type, pOp->p4.p); + assert( pOp->p4type > P4_FREE_IF_LE ); pOp->p4type = 0; pOp->p4.p = 0; } @@ -81104,7 +85867,7 @@ SQLITE_PRIVATE void sqlite3VdbeChangeP4(Vdbe *p, int addr, const char *zP4, int sqlite3 *db; assert( p!=0 ); db = p->db; - assert( p->iVdbeMagic==VDBE_MAGIC_INIT ); + assert( p->eVdbeState==VDBE_INIT_STATE ); assert( p->aOp!=0 || db->mallocFailed ); if( db->mallocFailed ){ if( n!=P4_VTAB ) freeP4(db, n, (void*)*(char**)&zP4); @@ -81149,7 +85912,7 @@ SQLITE_PRIVATE void sqlite3VdbeAppendP4(Vdbe *p, void *pP4, int n){ if( p->db->mallocFailed ){ freeP4(p->db, n, pP4); }else{ - assert( pP4!=0 ); + assert( pP4!=0 || n==P4_DYNAMIC ); assert( p->nOp>0 ); pOp = &p->aOp[p->nOp-1]; assert( pOp->p4type==P4_NOTUSED ); @@ -81211,13 +85974,13 @@ SQLITE_PRIVATE void sqlite3VdbeNoopComment(Vdbe *p, const char *zFormat, ...){ ** Set the value if the iSrcLine field for the previously coded instruction. */ SQLITE_PRIVATE void sqlite3VdbeSetLineNumber(Vdbe *v, int iLine){ - sqlite3VdbeGetOp(v,-1)->iSrcLine = iLine; + sqlite3VdbeGetLastOp(v)->iSrcLine = iLine; } #endif /* SQLITE_VDBE_COVERAGE */ /* -** Return the opcode for a given address. If the address is -1, then -** return the most recently inserted opcode. +** Return the opcode for a given address. The address must be non-negative. +** See sqlite3VdbeGetLastOp() to get the most recently added opcode. ** ** If a memory allocation error has occurred prior to the calling of this ** routine, then a pointer to a dummy VdbeOp will be returned. That opcode @@ -81232,10 +85995,7 @@ SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetOp(Vdbe *p, int addr){ /* C89 specifies that the constant "dummy" will be initialized to all ** zeros, which is correct. MSVC generates a warning, nevertheless. */ static VdbeOp dummy; /* Ignore the MSVC warning about no initializer */ - assert( p->iVdbeMagic==VDBE_MAGIC_INIT ); - if( addr<0 ){ - addr = p->nOp - 1; - } + assert( p->eVdbeState==VDBE_INIT_STATE ); assert( (addr>=0 && addr<p->nOp) || p->db->mallocFailed ); if( p->db->mallocFailed ){ return (VdbeOp*)&dummy; @@ -81244,6 +86004,12 @@ SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetOp(Vdbe *p, int addr){ } } +/* Return the most recently added opcode +*/ +SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetLastOp(Vdbe *p){ + return sqlite3VdbeGetOp(p, p->nOp - 1); +} + #if defined(SQLITE_ENABLE_EXPLAIN_COMMENTS) /* ** Return an integer value for one of the parameters to the opcode pOp @@ -81299,8 +86065,11 @@ SQLITE_PRIVATE char *sqlite3VdbeDisplayComment( if( c=='4' ){ sqlite3_str_appendall(&x, zP4); }else if( c=='X' ){ - sqlite3_str_appendall(&x, pOp->zComment); - seenCom = 1; + if( pOp->zComment && pOp->zComment[0] ){ + sqlite3_str_appendall(&x, pOp->zComment); + seenCom = 1; + break; + } }else{ int v1 = translateP(c, pOp); int v2; @@ -81529,10 +86298,6 @@ SQLITE_PRIVATE char *sqlite3VdbeDisplayP4(sqlite3 *db, Op *pOp){ zP4 = "program"; break; } - case P4_DYNBLOB: - case P4_ADVANCE: { - break; - } case P4_TABLE: { zP4 = pOp->p4.pTab->zName; break; @@ -81664,21 +86429,40 @@ SQLITE_PRIVATE void sqlite3VdbePrintOp(FILE *pOut, int pc, VdbeOp *pOp){ /* ** Initialize an array of N Mem element. +** +** This is a high-runner, so only those fields that really do need to +** be initialized are set. The Mem structure is organized so that +** the fields that get initialized are nearby and hopefully on the same +** cache line. +** +** Mem.flags = flags +** Mem.db = db +** Mem.szMalloc = 0 +** +** All other fields of Mem can safely remain uninitialized for now. They +** will be initialized before use. */ static void initMemArray(Mem *p, int N, sqlite3 *db, u16 flags){ - while( (N--)>0 ){ - p->db = db; - p->flags = flags; - p->szMalloc = 0; + if( N>0 ){ + do{ + p->flags = flags; + p->db = db; + p->szMalloc = 0; #ifdef SQLITE_DEBUG - p->pScopyFrom = 0; + p->pScopyFrom = 0; #endif - p++; + p++; + }while( (--N)>0 ); } } /* -** Release an array of N Mem elements +** Release auxiliary memory held in an array of N Mem elements. +** +** After this routine returns, all Mem elements in the array will still +** be valid. Those Mem elements that were not holding auxiliary resources +** will be unchanged. Mem elements which had something freed will be +** set to MEM_Undefined. */ static void releaseMemArray(Mem *p, int N){ if( p && N ){ @@ -81711,12 +86495,17 @@ static void releaseMemArray(Mem *p, int N){ if( p->flags&(MEM_Agg|MEM_Dyn) ){ testcase( (p->flags & MEM_Dyn)!=0 && p->xDel==sqlite3VdbeFrameMemDel ); sqlite3VdbeMemRelease(p); + p->flags = MEM_Undefined; }else if( p->szMalloc ){ - sqlite3DbFreeNN(db, p->zMalloc); + sqlite3DbNNFreeNN(db, p->zMalloc); p->szMalloc = 0; + p->flags = MEM_Undefined; } - - p->flags = MEM_Undefined; +#ifdef SQLITE_DEBUG + else{ + p->flags = MEM_Undefined; + } +#endif }while( (++p)<pEnd ); } } @@ -81875,7 +86664,7 @@ SQLITE_PRIVATE void sqlite3VdbeFrameDelete(VdbeFrame *p){ VdbeCursor **apCsr = (VdbeCursor **)&aMem[p->nChildMem]; assert( sqlite3VdbeFrameIsValid(p) ); for(i=0; i<p->nChildCsr; i++){ - sqlite3VdbeFreeCursor(p->v, apCsr[i]); + if( apCsr[i] ) sqlite3VdbeFreeCursorNN(p->v, apCsr[i]); } releaseMemArray(aMem, p->nChildMem); sqlite3VdbeDeleteAuxData(p->v->db, &p->pAuxData, -1, 0); @@ -81914,7 +86703,7 @@ SQLITE_PRIVATE int sqlite3VdbeList( Op *pOp; /* Current opcode */ assert( p->explain ); - assert( p->iVdbeMagic==VDBE_MAGIC_RUN ); + assert( p->eVdbeState==VDBE_RUN_STATE ); assert( p->rc==SQLITE_OK || p->rc==SQLITE_BUSY || p->rc==SQLITE_NOMEM ); /* Even though this opcode does not use dynamic strings for @@ -81922,7 +86711,6 @@ SQLITE_PRIVATE int sqlite3VdbeList( ** sqlite3_column_text16(), causing a translation to UTF-16 encoding. */ releaseMemArray(pMem, 8); - p->pResultSet = 0; if( p->rc==SQLITE_NOMEM ){ /* This happens if a malloc() inside a call to sqlite3_column_text() or @@ -81958,7 +86746,7 @@ SQLITE_PRIVATE int sqlite3VdbeList( sqlite3VdbeMemSetInt64(pMem+1, pOp->p2); sqlite3VdbeMemSetInt64(pMem+2, pOp->p3); sqlite3VdbeMemSetStr(pMem+3, zP4, -1, SQLITE_UTF8, sqlite3_free); - p->nResColumn = 4; + assert( p->nResColumn==4 ); }else{ sqlite3VdbeMemSetInt64(pMem+0, i); sqlite3VdbeMemSetStr(pMem+1, (char*)sqlite3OpcodeName(pOp->opcode), @@ -81977,9 +86765,9 @@ SQLITE_PRIVATE int sqlite3VdbeList( sqlite3VdbeMemSetNull(pMem+7); #endif sqlite3VdbeMemSetStr(pMem+5, zP4, -1, SQLITE_UTF8, sqlite3_free); - p->nResColumn = 8; + assert( p->nResColumn==8 ); } - p->pResultSet = pMem; + p->pResultRow = pMem; if( db->mallocFailed ){ p->rc = SQLITE_NOMEM; rc = SQLITE_ERROR; @@ -82069,11 +86857,11 @@ struct ReusableSpace { static void *allocSpace( struct ReusableSpace *p, /* Bulk memory available for allocation */ void *pBuf, /* Pointer to a prior allocation */ - sqlite3_int64 nByte /* Bytes of memory needed */ + sqlite3_int64 nByte /* Bytes of memory needed. */ ){ assert( EIGHT_BYTE_ALIGNMENT(p->pSpace) ); if( pBuf==0 ){ - nByte = ROUND8(nByte); + nByte = ROUND8P(nByte); if( nByte <= p->nFree ){ p->nFree -= nByte; pBuf = &p->pSpace[p->nFree]; @@ -82090,18 +86878,19 @@ static void *allocSpace( ** running it. */ SQLITE_PRIVATE void sqlite3VdbeRewind(Vdbe *p){ -#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE) +#if defined(SQLITE_DEBUG) int i; #endif assert( p!=0 ); - assert( p->iVdbeMagic==VDBE_MAGIC_INIT || p->iVdbeMagic==VDBE_MAGIC_RESET ); + assert( p->eVdbeState==VDBE_INIT_STATE + || p->eVdbeState==VDBE_READY_STATE + || p->eVdbeState==VDBE_HALT_STATE ); /* There should be at least one opcode. */ assert( p->nOp>0 ); - /* Set the magic to VDBE_MAGIC_RUN sooner rather than later. */ - p->iVdbeMagic = VDBE_MAGIC_RUN; + p->eVdbeState = VDBE_READY_STATE; #ifdef SQLITE_DEBUG for(i=0; i<p->nMem; i++){ @@ -82118,8 +86907,8 @@ SQLITE_PRIVATE void sqlite3VdbeRewind(Vdbe *p){ p->nFkConstraint = 0; #ifdef VDBE_PROFILE for(i=0; i<p->nOp; i++){ - p->aOp[i].cnt = 0; - p->aOp[i].cycles = 0; + p->aOp[i].nExec = 0; + p->aOp[i].nCycle = 0; } #endif } @@ -82157,7 +86946,7 @@ SQLITE_PRIVATE void sqlite3VdbeMakeReady( assert( p!=0 ); assert( p->nOp>0 ); assert( pParse!=0 ); - assert( p->iVdbeMagic==VDBE_MAGIC_INIT ); + assert( p->eVdbeState==VDBE_INIT_STATE ); assert( pParse==p->pParse ); p->pVList = pParse->pVList; pParse->pVList = 0; @@ -82180,7 +86969,7 @@ SQLITE_PRIVATE void sqlite3VdbeMakeReady( ** opcode array. This extra memory will be reallocated for other elements ** of the prepared statement. */ - n = ROUND8(sizeof(Op)*p->nOp); /* Bytes of opcode memory used */ + n = ROUND8P(sizeof(Op)*p->nOp); /* Bytes of opcode memory used */ x.pSpace = &((u8*)p->aOp)[n]; /* Unused opcode memory */ assert( EIGHT_BYTE_ALIGNMENT(x.pSpace) ); x.nFree = ROUNDDOWN8(pParse->szOpAlloc - n); /* Bytes of unused memory */ @@ -82190,26 +86979,9 @@ SQLITE_PRIVATE void sqlite3VdbeMakeReady( resolveP2Values(p, &nArg); p->usesStmtJournal = (u8)(pParse->isMultiWrite && pParse->mayAbort); if( pParse->explain ){ - static const char * const azColName[] = { - "addr", "opcode", "p1", "p2", "p3", "p4", "p5", "comment", - "id", "parent", "notused", "detail" - }; - int iFirst, mx, i; if( nMem<10 ) nMem = 10; p->explain = pParse->explain; - if( pParse->explain==2 ){ - sqlite3VdbeSetNumCols(p, 4); - iFirst = 8; - mx = 12; - }else{ - sqlite3VdbeSetNumCols(p, 8); - iFirst = 0; - mx = 8; - } - for(i=iFirst; i<mx; i++){ - sqlite3VdbeSetColName(p, i-iFirst, COLNAME_NAME, - azColName[i], SQLITE_STATIC); - } + p->nResColumn = 12 - 4*p->explain; } p->expired = 0; @@ -82228,9 +87000,6 @@ SQLITE_PRIVATE void sqlite3VdbeMakeReady( p->aVar = allocSpace(&x, 0, nVar*sizeof(Mem)); p->apArg = allocSpace(&x, 0, nArg*sizeof(Mem*)); p->apCsr = allocSpace(&x, 0, nCursor*sizeof(VdbeCursor*)); -#ifdef SQLITE_ENABLE_STMT_SCANSTATUS - p->anExec = allocSpace(&x, 0, p->nOp*sizeof(i64)); -#endif if( x.nNeeded ){ x.pSpace = p->pFree = sqlite3DbMallocRawNN(db, x.nNeeded); x.nFree = x.nNeeded; @@ -82239,9 +87008,6 @@ SQLITE_PRIVATE void sqlite3VdbeMakeReady( p->aVar = allocSpace(&x, p->aVar, nVar*sizeof(Mem)); p->apArg = allocSpace(&x, p->apArg, nArg*sizeof(Mem*)); p->apCsr = allocSpace(&x, p->apCsr, nCursor*sizeof(VdbeCursor*)); -#ifdef SQLITE_ENABLE_STMT_SCANSTATUS - p->anExec = allocSpace(&x, p->anExec, p->nOp*sizeof(i64)); -#endif } } @@ -82256,9 +87022,6 @@ SQLITE_PRIVATE void sqlite3VdbeMakeReady( p->nMem = nMem; initMemArray(p->aMem, nMem, db, MEM_Undefined); memset(p->apCsr, 0, nCursor*sizeof(VdbeCursor*)); -#ifdef SQLITE_ENABLE_STMT_SCANSTATUS - memset(p->anExec, 0, p->nOp*sizeof(i64)); -#endif } sqlite3VdbeRewind(p); } @@ -82268,7 +87031,23 @@ SQLITE_PRIVATE void sqlite3VdbeMakeReady( ** happens to hold. */ SQLITE_PRIVATE void sqlite3VdbeFreeCursor(Vdbe *p, VdbeCursor *pCx){ - if( pCx==0 ){ + if( pCx ) sqlite3VdbeFreeCursorNN(p,pCx); +} +static SQLITE_NOINLINE void freeCursorWithCache(Vdbe *p, VdbeCursor *pCx){ + VdbeTxtBlbCache *pCache = pCx->pCache; + assert( pCx->colCache ); + pCx->colCache = 0; + pCx->pCache = 0; + if( pCache->pCValue ){ + sqlite3RCStrUnref(pCache->pCValue); + pCache->pCValue = 0; + } + sqlite3DbFree(p->db, pCache); + sqlite3VdbeFreeCursorNN(p, pCx); +} +SQLITE_PRIVATE void sqlite3VdbeFreeCursorNN(Vdbe *p, VdbeCursor *pCx){ + if( pCx->colCache ){ + freeCursorWithCache(p, pCx); return; } switch( pCx->eCurType ){ @@ -82298,14 +87077,12 @@ SQLITE_PRIVATE void sqlite3VdbeFreeCursor(Vdbe *p, VdbeCursor *pCx){ ** Close all cursors in the current frame. */ static void closeCursorsInFrame(Vdbe *p){ - if( p->apCsr ){ - int i; - for(i=0; i<p->nCursor; i++){ - VdbeCursor *pC = p->apCsr[i]; - if( pC ){ - sqlite3VdbeFreeCursor(p, pC); - p->apCsr[i] = 0; - } + int i; + for(i=0; i<p->nCursor; i++){ + VdbeCursor *pC = p->apCsr[i]; + if( pC ){ + sqlite3VdbeFreeCursorNN(p, pC); + p->apCsr[i] = 0; } } } @@ -82318,9 +87095,6 @@ static void closeCursorsInFrame(Vdbe *p){ SQLITE_PRIVATE int sqlite3VdbeFrameRestore(VdbeFrame *pFrame){ Vdbe *v = pFrame->v; closeCursorsInFrame(v); -#ifdef SQLITE_ENABLE_STMT_SCANSTATUS - v->anExec = pFrame->anExec; -#endif v->aOp = pFrame->aOp; v->nOp = pFrame->nOp; v->aMem = pFrame->aMem; @@ -82354,9 +87128,7 @@ static void closeAllCursors(Vdbe *p){ } assert( p->nFrame==0 ); closeCursorsInFrame(p); - if( p->aMem ){ - releaseMemArray(p->aMem, p->nMem); - } + releaseMemArray(p->aMem, p->nMem); while( p->pDelFrame ){ VdbeFrame *pDel = p->pDelFrame; p->pDelFrame = pDel->pParent; @@ -82378,12 +87150,12 @@ SQLITE_PRIVATE void sqlite3VdbeSetNumCols(Vdbe *p, int nResColumn){ int n; sqlite3 *db = p->db; - if( p->nResColumn ){ - releaseMemArray(p->aColName, p->nResColumn*COLNAME_N); + if( p->nResAlloc ){ + releaseMemArray(p->aColName, p->nResAlloc*COLNAME_N); sqlite3DbFree(db, p->aColName); } n = nResColumn*COLNAME_N; - p->nResColumn = (u16)nResColumn; + p->nResColumn = p->nResAlloc = (u16)nResColumn; p->aColName = (Mem*)sqlite3DbMallocRawNN(db, sizeof(Mem)*n ); if( p->aColName==0 ) return; initMemArray(p->aColName, n, db, MEM_Null); @@ -82408,14 +87180,14 @@ SQLITE_PRIVATE int sqlite3VdbeSetColName( ){ int rc; Mem *pColName; - assert( idx<p->nResColumn ); + assert( idx<p->nResAlloc ); assert( var<COLNAME_N ); if( p->db->mallocFailed ){ assert( !zName || xDel!=SQLITE_DYNAMIC ); return SQLITE_NOMEM_BKPT; } assert( p->aColName!=0 ); - pColName = &(p->aColName[idx+var*p->nResColumn]); + pColName = &(p->aColName[idx+var*p->nResAlloc]); rc = sqlite3VdbeMemSetStr(pColName, zName, -1, SQLITE_UTF8, xDel); assert( rc!=0 || !zName || (pColName->flags&MEM_Term)!=0 ); return rc; @@ -82703,7 +87475,7 @@ static void checkActiveVdbeCnt(sqlite3 *db){ if( p->readOnly==0 ) nWrite++; if( p->bIsReader ) nRead++; } - p = p->pNext; + p = p->pVNext; } assert( cnt==db->nVdbeActive ); assert( nWrite==db->nVdbeWrite ); @@ -82796,7 +87568,8 @@ SQLITE_PRIVATE int sqlite3VdbeCheckFk(Vdbe *p, int deferred){ p->rc = SQLITE_CONSTRAINT_FOREIGNKEY; p->errorAction = OE_Abort; sqlite3VdbeError(p, "FOREIGN KEY constraint failed"); - return SQLITE_ERROR; + if( (p->prepFlags & SQLITE_PREPARE_SAVESQL)==0 ) return SQLITE_ERROR; + return SQLITE_CONSTRAINT_FOREIGNKEY; } return SQLITE_OK; } @@ -82835,9 +87608,7 @@ SQLITE_PRIVATE int sqlite3VdbeHalt(Vdbe *p){ ** one, or the complete transaction if there is no statement transaction. */ - if( p->iVdbeMagic!=VDBE_MAGIC_RUN ){ - return SQLITE_OK; - } + assert( p->eVdbeState==VDBE_RUN_STATE ); if( db->mallocFailed ){ p->rc = SQLITE_NOMEM_BKPT; } @@ -82846,7 +87617,7 @@ SQLITE_PRIVATE int sqlite3VdbeHalt(Vdbe *p){ /* No commit or rollback needed if the program never started or if the ** SQL statement does not read or write a database file. */ - if( p->pc>=0 && p->bIsReader ){ + if( p->bIsReader ){ int mrc; /* Primary error code from p->rc */ int eStatementOp = 0; int isSpecialError; /* Set to true if a 'special' error */ @@ -82929,6 +87700,7 @@ SQLITE_PRIVATE int sqlite3VdbeHalt(Vdbe *p){ sqlite3VdbeLeave(p); return SQLITE_BUSY; }else if( rc!=SQLITE_OK ){ + sqlite3SystemError(db, rc); p->rc = rc; sqlite3RollbackAll(db, SQLITE_OK); p->nChange = 0; @@ -82938,6 +87710,8 @@ SQLITE_PRIVATE int sqlite3VdbeHalt(Vdbe *p){ db->flags &= ~(u64)SQLITE_DeferFKs; sqlite3CommitInternalChanges(db); } + }else if( p->rc==SQLITE_SCHEMA && db->nVdbeActive>1 ){ + p->nChange = 0; }else{ sqlite3RollbackAll(db, SQLITE_OK); p->nChange = 0; @@ -82994,15 +87768,13 @@ SQLITE_PRIVATE int sqlite3VdbeHalt(Vdbe *p){ } /* We have successfully halted and closed the VM. Record this fact. */ - if( p->pc>=0 ){ - db->nVdbeActive--; - if( !p->readOnly ) db->nVdbeWrite--; - if( p->bIsReader ) db->nVdbeRead--; - assert( db->nVdbeActive>=db->nVdbeRead ); - assert( db->nVdbeRead>=db->nVdbeWrite ); - assert( db->nVdbeWrite>=0 ); - } - p->iVdbeMagic = VDBE_MAGIC_HALT; + db->nVdbeActive--; + if( !p->readOnly ) db->nVdbeWrite--; + if( p->bIsReader ) db->nVdbeRead--; + assert( db->nVdbeActive>=db->nVdbeRead ); + assert( db->nVdbeRead>=db->nVdbeWrite ); + assert( db->nVdbeWrite>=0 ); + p->eVdbeState = VDBE_HALT_STATE; checkActiveVdbeCnt(db); if( db->mallocFailed ){ p->rc = SQLITE_NOMEM_BKPT; @@ -83084,8 +87856,8 @@ static void vdbeInvokeSqllog(Vdbe *v){ ** again. ** ** To look at it another way, this routine resets the state of the -** virtual machine from VDBE_MAGIC_RUN or VDBE_MAGIC_HALT back to -** VDBE_MAGIC_INIT. +** virtual machine from VDBE_RUN_STATE or VDBE_HALT_STATE back to +** VDBE_READY_STATE. */ SQLITE_PRIVATE int sqlite3VdbeReset(Vdbe *p){ #if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE) @@ -83099,7 +87871,7 @@ SQLITE_PRIVATE int sqlite3VdbeReset(Vdbe *p){ ** error, then it might not have been halted properly. So halt ** it now. */ - sqlite3VdbeHalt(p); + if( p->eVdbeState==VDBE_RUN_STATE ) sqlite3VdbeHalt(p); /* If the VDBE has been run even partially, then transfer the error code ** and error message from the VDBE into the main database structure. But @@ -83113,13 +87885,6 @@ SQLITE_PRIVATE int sqlite3VdbeReset(Vdbe *p){ }else{ db->errCode = p->rc; } - if( p->runOnlyOnce ) p->expired = 1; - }else if( p->rc && p->expired ){ - /* The expired flag was set on the VDBE before the first call - ** to sqlite3_step(). For consistency (since sqlite3_step() was - ** called), set the database error in this case as well. - */ - sqlite3ErrorWithMsg(db, p->rc, p->zErrMsg ? "%s" : 0, p->zErrMsg); } /* Reset register contents and reclaim error message memory. @@ -83136,7 +87901,7 @@ SQLITE_PRIVATE int sqlite3VdbeReset(Vdbe *p){ sqlite3DbFree(db, p->zErrMsg); p->zErrMsg = 0; } - p->pResultSet = 0; + p->pResultRow = 0; #ifdef SQLITE_DEBUG p->nWrite = 0; #endif @@ -83164,10 +87929,12 @@ SQLITE_PRIVATE int sqlite3VdbeReset(Vdbe *p){ } for(i=0; i<p->nOp; i++){ char zHdr[100]; + i64 cnt = p->aOp[i].nExec; + i64 cycles = p->aOp[i].nCycle; sqlite3_snprintf(sizeof(zHdr), zHdr, "%6u %12llu %8llu ", - p->aOp[i].cnt, - p->aOp[i].cycles, - p->aOp[i].cnt>0 ? p->aOp[i].cycles/p->aOp[i].cnt : 0 + cnt, + cycles, + cnt>0 ? cycles/cnt : 0 ); fprintf(out, "%s", zHdr); sqlite3VdbePrintOp(out, i, &p->aOp[i]); @@ -83176,7 +87943,6 @@ SQLITE_PRIVATE int sqlite3VdbeReset(Vdbe *p){ } } #endif - p->iVdbeMagic = VDBE_MAGIC_RESET; return p->rc & db->errMask; } @@ -83186,7 +87952,10 @@ SQLITE_PRIVATE int sqlite3VdbeReset(Vdbe *p){ */ SQLITE_PRIVATE int sqlite3VdbeFinalize(Vdbe *p){ int rc = SQLITE_OK; - if( p->iVdbeMagic==VDBE_MAGIC_RUN || p->iVdbeMagic==VDBE_MAGIC_HALT ){ + assert( VDBE_RUN_STATE>VDBE_READY_STATE ); + assert( VDBE_HALT_STATE>VDBE_READY_STATE ); + assert( VDBE_INIT_STATE<VDBE_READY_STATE ); + if( p->eVdbeState>=VDBE_READY_STATE ){ rc = sqlite3VdbeReset(p); assert( (rc & p->db->errMask)==rc ); } @@ -83238,29 +88007,32 @@ SQLITE_PRIVATE void sqlite3VdbeDeleteAuxData(sqlite3 *db, AuxData **pp, int iOp, ** VdbeDelete() also unlinks the Vdbe from the list of VMs associated with ** the database connection and frees the object itself. */ -SQLITE_PRIVATE void sqlite3VdbeClearObject(sqlite3 *db, Vdbe *p){ +static void sqlite3VdbeClearObject(sqlite3 *db, Vdbe *p){ SubProgram *pSub, *pNext; + assert( db!=0 ); assert( p->db==0 || p->db==db ); - releaseMemArray(p->aColName, p->nResColumn*COLNAME_N); + if( p->aColName ){ + releaseMemArray(p->aColName, p->nResAlloc*COLNAME_N); + sqlite3DbNNFreeNN(db, p->aColName); + } for(pSub=p->pProgram; pSub; pSub=pNext){ pNext = pSub->pNext; vdbeFreeOpArray(db, pSub->aOp, pSub->nOp); sqlite3DbFree(db, pSub); } - if( p->iVdbeMagic!=VDBE_MAGIC_INIT ){ + if( p->eVdbeState!=VDBE_INIT_STATE ){ releaseMemArray(p->aVar, p->nVar); - sqlite3DbFree(db, p->pVList); - sqlite3DbFree(db, p->pFree); + if( p->pVList ) sqlite3DbNNFreeNN(db, p->pVList); + if( p->pFree ) sqlite3DbNNFreeNN(db, p->pFree); } vdbeFreeOpArray(db, p->aOp, p->nOp); - sqlite3DbFree(db, p->aColName); - sqlite3DbFree(db, p->zSql); + if( p->zSql ) sqlite3DbNNFreeNN(db, p->zSql); #ifdef SQLITE_ENABLE_NORMALIZE sqlite3DbFree(db, p->zNormSql); { - DblquoteStr *pThis, *pNext; - for(pThis=p->pDblStr; pThis; pThis=pNext){ - pNext = pThis->pNextStr; + DblquoteStr *pThis, *pNxt; + for(pThis=p->pDblStr; pThis; pThis=pNxt){ + pNxt = pThis->pNextStr; sqlite3DbFree(db, pThis); } } @@ -83284,20 +88056,17 @@ SQLITE_PRIVATE void sqlite3VdbeDelete(Vdbe *p){ assert( p!=0 ); db = p->db; + assert( db!=0 ); assert( sqlite3_mutex_held(db->mutex) ); sqlite3VdbeClearObject(db, p); - if( p->pPrev ){ - p->pPrev->pNext = p->pNext; - }else{ - assert( db->pVdbe==p ); - db->pVdbe = p->pNext; - } - if( p->pNext ){ - p->pNext->pPrev = p->pPrev; + if( db->pnBytesFreed==0 ){ + assert( p->ppVPrev!=0 ); + *p->ppVPrev = p->pVNext; + if( p->pVNext ){ + p->pVNext->ppVPrev = p->ppVPrev; + } } - p->iVdbeMagic = VDBE_MAGIC_DEAD; - p->db = 0; - sqlite3DbFreeNN(db, p); + sqlite3DbNNFreeNN(db, p); } /* @@ -83331,7 +88100,7 @@ SQLITE_PRIVATE int SQLITE_NOINLINE sqlite3VdbeFinishMoveto(VdbeCursor *p){ ** is supposed to be pointing. If the row was deleted out from under the ** cursor, set the cursor to point to a NULL row. */ -static int SQLITE_NOINLINE handleMovedCursor(VdbeCursor *p){ +SQLITE_PRIVATE int SQLITE_NOINLINE sqlite3VdbeHandleMovedCursor(VdbeCursor *p){ int isDifferentRow, rc; assert( p->eCurType==CURTYPE_BTREE ); assert( p->uc.pCursor!=0 ); @@ -83347,41 +88116,9 @@ static int SQLITE_NOINLINE handleMovedCursor(VdbeCursor *p){ ** if need be. Return any I/O error from the restore operation. */ SQLITE_PRIVATE int sqlite3VdbeCursorRestore(VdbeCursor *p){ - assert( p->eCurType==CURTYPE_BTREE ); - if( sqlite3BtreeCursorHasMoved(p->uc.pCursor) ){ - return handleMovedCursor(p); - } - return SQLITE_OK; -} - -/* -** Make sure the cursor p is ready to read or write the row to which it -** was last positioned. Return an error code if an OOM fault or I/O error -** prevents us from positioning the cursor to its correct position. -** -** If a MoveTo operation is pending on the given cursor, then do that -** MoveTo now. If no move is pending, check to see if the row has been -** deleted out from under the cursor and if it has, mark the row as -** a NULL row. -** -** If the cursor is already pointing to the correct row and that row has -** not been deleted out from under the cursor, then this routine is a no-op. -*/ -SQLITE_PRIVATE int sqlite3VdbeCursorMoveto(VdbeCursor **pp, u32 *piCol){ - VdbeCursor *p = *pp; - assert( p->eCurType==CURTYPE_BTREE || p->eCurType==CURTYPE_PSEUDO ); - if( p->deferredMoveto ){ - u32 iMap; - assert( !p->isEphemeral ); - if( p->ub.aAltMap && (iMap = p->ub.aAltMap[1+*piCol])>0 && !p->nullRow ){ - *pp = p->pAltCursor; - *piCol = iMap - 1; - return SQLITE_OK; - } - return sqlite3VdbeFinishMoveto(p); - } + assert( p->eCurType==CURTYPE_BTREE || IsNullCursor(p) ); if( sqlite3BtreeCursorHasMoved(p->uc.pCursor) ){ - return handleMovedCursor(p); + return sqlite3VdbeHandleMovedCursor(p); } return SQLITE_OK; } @@ -83392,7 +88129,7 @@ SQLITE_PRIVATE int sqlite3VdbeCursorMoveto(VdbeCursor **pp, u32 *piCol){ ** sqlite3VdbeSerialType() ** sqlite3VdbeSerialTypeLen() ** sqlite3VdbeSerialLen() -** sqlite3VdbeSerialPut() +** sqlite3VdbeSerialPut() <--- in-lined into OP_MakeRecord as of 2022-04-02 ** sqlite3VdbeSerialGet() ** ** encapsulate the code that serializes values for storage in SQLite @@ -83504,7 +88241,7 @@ SQLITE_PRIVATE u32 sqlite3VdbeSerialType(Mem *pMem, int file_format, u32 *pLen){ /* ** The sizes for serial types less than 128 */ -static const u8 sqlite3SmallTypeSizes[] = { +SQLITE_PRIVATE const u8 sqlite3SmallTypeSizes[128] = { /* 0 1 2 3 4 5 6 7 8 9 */ /* 0 */ 0, 1, 2, 3, 4, 6, 8, 8, 0, 0, /* 10 */ 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, @@ -83573,7 +88310,7 @@ SQLITE_PRIVATE u8 sqlite3VdbeOneByteSerialTypeLen(u8 serial_type){ ** so we trust him. */ #ifdef SQLITE_MIXED_ENDIAN_64BIT_FLOAT -static u64 floatSwap(u64 in){ +SQLITE_PRIVATE u64 sqlite3FloatSwap(u64 in){ union { u64 r; u32 i[2]; @@ -83586,59 +88323,8 @@ static u64 floatSwap(u64 in){ u.i[1] = t; return u.r; } -# define swapMixedEndianFloat(X) X = floatSwap(X) -#else -# define swapMixedEndianFloat(X) -#endif - -/* -** Write the serialized data blob for the value stored in pMem into -** buf. It is assumed that the caller has allocated sufficient space. -** Return the number of bytes written. -** -** nBuf is the amount of space left in buf[]. The caller is responsible -** for allocating enough space to buf[] to hold the entire field, exclusive -** of the pMem->u.nZero bytes for a MEM_Zero value. -** -** Return the number of bytes actually written into buf[]. The number -** of bytes in the zero-filled tail is included in the return value only -** if those bytes were zeroed in buf[]. -*/ -SQLITE_PRIVATE u32 sqlite3VdbeSerialPut(u8 *buf, Mem *pMem, u32 serial_type){ - u32 len; - - /* Integer and Real */ - if( serial_type<=7 && serial_type>0 ){ - u64 v; - u32 i; - if( serial_type==7 ){ - assert( sizeof(v)==sizeof(pMem->u.r) ); - memcpy(&v, &pMem->u.r, sizeof(v)); - swapMixedEndianFloat(v); - }else{ - v = pMem->u.i; - } - len = i = sqlite3SmallTypeSizes[serial_type]; - assert( i>0 ); - do{ - buf[--i] = (u8)(v&0xFF); - v >>= 8; - }while( i ); - return len; - } - - /* String or blob */ - if( serial_type>=12 ){ - assert( pMem->n + ((pMem->flags & MEM_Zero)?pMem->u.nZero:0) - == (int)sqlite3VdbeSerialTypeLen(serial_type) ); - len = pMem->n; - if( len>0 ) memcpy(buf, pMem->z, len); - return len; - } +#endif /* SQLITE_MIXED_ENDIAN_64BIT_FLOAT */ - /* NULL or constants 0 or 1 */ - return 0; -} /* Input "x" is a sequence of unsigned characters that represent a ** big-endian integer. Return the equivalent native integer @@ -83804,10 +88490,10 @@ SQLITE_PRIVATE UnpackedRecord *sqlite3VdbeAllocUnpackedRecord( ){ UnpackedRecord *p; /* Unpacked record to return */ int nByte; /* Number of bytes required for *p */ - nByte = ROUND8(sizeof(UnpackedRecord)) + sizeof(Mem)*(pKeyInfo->nKeyField+1); + nByte = ROUND8P(sizeof(UnpackedRecord)) + sizeof(Mem)*(pKeyInfo->nKeyField+1); p = (UnpackedRecord *)sqlite3DbMallocRaw(pKeyInfo->db, nByte); if( !p ) return 0; - p->aMem = (Mem*)&((char*)p)[ROUND8(sizeof(UnpackedRecord))]; + p->aMem = (Mem*)&((char*)p)[ROUND8P(sizeof(UnpackedRecord))]; assert( pKeyInfo->aSortFlags!=0 ); p->pKeyInfo = pKeyInfo; p->nField = pKeyInfo->nKeyField + 1; @@ -83926,6 +88612,15 @@ static int vdbeRecordCompareDebug( if( d1+(u64)serial_type1+2>(u64)nKey1 && d1+(u64)sqlite3VdbeSerialTypeLen(serial_type1)>(u64)nKey1 ){ + if( serial_type1>=1 + && serial_type1<=7 + && d1+(u64)sqlite3VdbeSerialTypeLen(serial_type1)<=(u64)nKey1+8 + && CORRUPT_DB + ){ + return 1; /* corrupt record not detected by + ** sqlite3VdbeRecordCompareWithSkip(). Return true + ** to avoid firing the assert() */ + } break; } @@ -84043,8 +88738,8 @@ static int vdbeCompareMemString( }else{ rc = pColl->xCmp(pColl->pUser, c1.n, v1, c2.n, v2); } - sqlite3VdbeMemRelease(&c1); - sqlite3VdbeMemRelease(&c2); + sqlite3VdbeMemReleaseMalloc(&c1); + sqlite3VdbeMemReleaseMalloc(&c2); return rc; } } @@ -84094,20 +88789,33 @@ SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3BlobCompare(const Mem *pB1, const Mem return n1 - n2; } +/* The following two functions are used only within testcase() to prove +** test coverage. These functions do no exist for production builds. +** We must use separate SQLITE_NOINLINE functions here, since otherwise +** optimizer code movement causes gcov to become very confused. +*/ +#if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_DEBUG) +static int SQLITE_NOINLINE doubleLt(double a, double b){ return a<b; } +static int SQLITE_NOINLINE doubleEq(double a, double b){ return a==b; } +#endif + /* ** Do a comparison between a 64-bit signed integer and a 64-bit floating-point ** number. Return negative, zero, or positive if the first (i64) is less than, ** equal to, or greater than the second (double). */ SQLITE_PRIVATE int sqlite3IntFloatCompare(i64 i, double r){ - if( sizeof(LONGDOUBLE_TYPE)>8 ){ + if( sqlite3IsNaN(r) ){ + /* SQLite considers NaN to be a NULL. And all integer values are greater + ** than NULL */ + return 1; + } + if( sqlite3Config.bUseLongDouble ){ LONGDOUBLE_TYPE x = (LONGDOUBLE_TYPE)i; testcase( x<r ); testcase( x>r ); testcase( x==r ); - if( x<r ) return -1; - if( x>r ) return +1; /*NO_TEST*/ /* work around bugs in gcov */ - return 0; /*NO_TEST*/ /* work around bugs in gcov */ + return (x<r) ? -1 : (x>r); }else{ i64 y; double s; @@ -84117,9 +88825,10 @@ SQLITE_PRIVATE int sqlite3IntFloatCompare(i64 i, double r){ if( i<y ) return -1; if( i>y ) return +1; s = (double)i; - if( s<r ) return -1; - if( s>r ) return +1; - return 0; + testcase( doubleLt(s,r) ); + testcase( doubleLt(r,s) ); + testcase( doubleEq(r,s) ); + return (s<r) ? -1 : (s>r); } } @@ -84305,14 +89014,22 @@ SQLITE_PRIVATE int sqlite3VdbeRecordCompareWithSkip( ** two elements in the keys are equal. Fix the various stack variables so ** that this routine begins comparing at the second field. */ if( bSkip ){ - u32 s1; - idx1 = 1 + getVarint32(&aKey1[1], s1); + u32 s1 = aKey1[1]; + if( s1<0x80 ){ + idx1 = 2; + }else{ + idx1 = 1 + sqlite3GetVarint32(&aKey1[1], &s1); + } szHdr1 = aKey1[0]; d1 = szHdr1 + sqlite3VdbeSerialTypeLen(s1); i = 1; pRhs++; }else{ - idx1 = getVarint32(aKey1, szHdr1); + if( (szHdr1 = aKey1[0])<0x80 ){ + idx1 = 1; + }else{ + idx1 = sqlite3GetVarint32(aKey1, &szHdr1); + } d1 = szHdr1; i = 0; } @@ -84327,7 +89044,7 @@ SQLITE_PRIVATE int sqlite3VdbeRecordCompareWithSkip( assert( pPKey2->pKeyInfo->aSortFlags!=0 ); assert( pPKey2->pKeyInfo->nKeyField>0 ); assert( idx1<=szHdr1 || CORRUPT_DB ); - do{ + while( 1 /*exit-by-break*/ ){ u32 serial_type; /* RHS is an integer */ @@ -84337,7 +89054,7 @@ SQLITE_PRIVATE int sqlite3VdbeRecordCompareWithSkip( serial_type = aKey1[idx1]; testcase( serial_type==12 ); if( serial_type>=10 ){ - rc = +1; + rc = serial_type==10 ? -1 : +1; }else if( serial_type==0 ){ rc = -1; }else if( serial_type==7 ){ @@ -84361,8 +89078,8 @@ SQLITE_PRIVATE int sqlite3VdbeRecordCompareWithSkip( /* Serial types 12 or greater are strings and blobs (greater than ** numbers). Types 10 and 11 are currently "reserved for future ** use", so it doesn't really matter what the results of comparing - ** them to numberic values are. */ - rc = +1; + ** them to numeric values are. */ + rc = serial_type==10 ? -1 : +1; }else if( serial_type==0 ){ rc = -1; }else{ @@ -84443,7 +89160,7 @@ SQLITE_PRIVATE int sqlite3VdbeRecordCompareWithSkip( /* RHS is null */ else{ serial_type = aKey1[idx1]; - rc = (serial_type!=0); + rc = (serial_type!=0 && serial_type!=10); } if( rc!=0 ){ @@ -84465,8 +89182,13 @@ SQLITE_PRIVATE int sqlite3VdbeRecordCompareWithSkip( if( i==pPKey2->nField ) break; pRhs++; d1 += sqlite3VdbeSerialTypeLen(serial_type); + if( d1>(unsigned)nKey1 ) break; idx1 += sqlite3VarintLen(serial_type); - }while( idx1<(unsigned)szHdr1 && d1<=(unsigned)nKey1 ); + if( idx1>=(unsigned)szHdr1 ){ + pPKey2->errCode = (u8)SQLITE_CORRUPT_BKPT; + return 0; /* Corrupt index */ + } + } /* No memory allocation is ever used on mem1. Prove this using ** the following assert(). If the assert() fails, it indicates a @@ -84568,7 +89290,8 @@ static int vdbeRecordCompareInt( return sqlite3VdbeRecordCompare(nKey1, pKey1, pPKey2); } - v = pPKey2->aMem[0].u.i; + assert( pPKey2->u.i == pPKey2->aMem[0].u.i ); + v = pPKey2->u.i; if( v>lhs ){ res = pPKey2->r1; }else if( v<lhs ){ @@ -84603,12 +89326,18 @@ static int vdbeRecordCompareString( int res; assert( pPKey2->aMem[0].flags & MEM_Str ); + assert( pPKey2->aMem[0].n == pPKey2->n ); + assert( pPKey2->aMem[0].z == pPKey2->u.z ); vdbeAssertFieldCountWithinLimits(nKey1, pKey1, pPKey2->pKeyInfo); - serial_type = (u8)(aKey1[1]); - if( serial_type >= 0x80 ){ - sqlite3GetVarint32(&aKey1[1], (u32*)&serial_type); - } + serial_type = (signed char)(aKey1[1]); + +vrcs_restart: if( serial_type<12 ){ + if( serial_type<0 ){ + sqlite3GetVarint32(&aKey1[1], (u32*)&serial_type); + if( serial_type>=12 ) goto vrcs_restart; + assert( CORRUPT_DB ); + } res = pPKey2->r1; /* (pKey1/nKey1) is a number or a null */ }else if( !(serial_type & 0x01) ){ res = pPKey2->r2; /* (pKey1/nKey1) is a blob */ @@ -84622,15 +89351,15 @@ static int vdbeRecordCompareString( pPKey2->errCode = (u8)SQLITE_CORRUPT_BKPT; return 0; /* Corruption */ } - nCmp = MIN( pPKey2->aMem[0].n, nStr ); - res = memcmp(&aKey1[szHdr], pPKey2->aMem[0].z, nCmp); + nCmp = MIN( pPKey2->n, nStr ); + res = memcmp(&aKey1[szHdr], pPKey2->u.z, nCmp); if( res>0 ){ res = pPKey2->r2; }else if( res<0 ){ res = pPKey2->r1; }else{ - res = nStr - pPKey2->aMem[0].n; + res = nStr - pPKey2->n; if( res==0 ){ if( pPKey2->nField>1 ){ res = sqlite3VdbeRecordCompareWithSkip(nKey1, pKey1, pPKey2, 1); @@ -84685,6 +89414,7 @@ SQLITE_PRIVATE RecordCompare sqlite3VdbeFindCompare(UnpackedRecord *p){ p->r2 = 1; } if( (flags & MEM_Int) ){ + p->u.i = p->aMem[0].u.i; return vdbeRecordCompareInt; } testcase( flags & MEM_Real ); @@ -84694,6 +89424,8 @@ SQLITE_PRIVATE RecordCompare sqlite3VdbeFindCompare(UnpackedRecord *p){ && p->pKeyInfo->aColl[0]==0 ){ assert( flags & MEM_Str ); + p->u.z = p->aMem[0].z; + p->n = p->aMem[0].n; return vdbeRecordCompareString; } } @@ -84766,14 +89498,14 @@ SQLITE_PRIVATE int sqlite3VdbeIdxRowid(sqlite3 *db, BtCursor *pCur, i64 *rowid){ /* Fetch the integer off the end of the index record */ sqlite3VdbeSerialGet((u8*)&m.z[m.n-lenRowid], typeRowid, &v); *rowid = v.u.i; - sqlite3VdbeMemRelease(&m); + sqlite3VdbeMemReleaseMalloc(&m); return SQLITE_OK; /* Jump here if database corruption is detected after m has been ** allocated. Free the m object and return SQLITE_CORRUPT. */ idx_rowid_corruption: testcase( m.szMalloc!=0 ); - sqlite3VdbeMemRelease(&m); + sqlite3VdbeMemReleaseMalloc(&m); return SQLITE_CORRUPT_BKPT; } @@ -84815,7 +89547,7 @@ SQLITE_PRIVATE int sqlite3VdbeIdxKeyCompare( return rc; } *res = sqlite3VdbeRecordCompareWithSkip(m.n, m.z, pUnpacked, 0); - sqlite3VdbeMemRelease(&m); + sqlite3VdbeMemReleaseMalloc(&m); return SQLITE_OK; } @@ -84857,7 +89589,7 @@ SQLITE_PRIVATE void sqlite3VdbeCountChanges(Vdbe *v){ */ SQLITE_PRIVATE void sqlite3ExpirePreparedStatements(sqlite3 *db, int iCode){ Vdbe *p; - for(p = db->pVdbe; p; p=p->pNext){ + for(p = db->pVdbe; p; p=p->pVNext){ p->expired = iCode+1; } } @@ -84950,6 +89682,20 @@ SQLITE_PRIVATE int sqlite3NotPureFunc(sqlite3_context *pCtx){ return 1; } +#if defined(SQLITE_ENABLE_CURSOR_HINTS) && defined(SQLITE_DEBUG) +/* +** This Walker callback is used to help verify that calls to +** sqlite3BtreeCursorHint() with opcode BTREE_HINT_RANGE have +** byte-code register values correctly initialized. +*/ +SQLITE_PRIVATE int sqlite3CursorRangeHintExprCheck(Walker *pWalker, Expr *pExpr){ + if( pExpr->op==TK_REGISTER ){ + assert( (pWalker->u.aMem[pExpr->iTable].flags & MEM_Undefined)==0 ); + } + return WRC_Continue; +} +#endif /* SQLITE_ENABLE_CURSOR_HINTS && SQLITE_DEBUG */ + #ifndef SQLITE_OMIT_VIRTUALTABLE /* ** Transfer error message text from an sqlite3_vtab.zErrMsg (text stored @@ -84978,13 +89724,14 @@ SQLITE_PRIVATE void sqlite3VtabImportErrmsg(Vdbe *p, sqlite3_vtab *pVtab){ ** the vdbeUnpackRecord() function found in vdbeapi.c. */ static void vdbeFreeUnpacked(sqlite3 *db, int nField, UnpackedRecord *p){ + assert( db!=0 ); if( p ){ int i; for(i=0; i<nField; i++){ Mem *pMem = &p->aMem[i]; - if( pMem->zMalloc ) sqlite3VdbeMemRelease(pMem); + if( pMem->zMalloc ) sqlite3VdbeMemReleaseMalloc(pMem); } - sqlite3DbFreeNN(db, p); + sqlite3DbNNFreeNN(db, p); } } #endif /* SQLITE_ENABLE_PREUPDATE_HOOK */ @@ -85011,6 +89758,16 @@ SQLITE_PRIVATE void sqlite3VdbePreUpdateHook( PreUpdate preupdate; const char *zTbl = pTab->zName; static const u8 fakeSortOrder = 0; +#ifdef SQLITE_DEBUG + int nRealCol; + if( pTab->tabFlags & TF_WithoutRowid ){ + nRealCol = sqlite3PrimaryKeyIndex(pTab)->nColumn; + }else if( pTab->tabFlags & TF_HasVirtual ){ + nRealCol = pTab->nNVCol; + }else{ + nRealCol = pTab->nCol; + } +#endif assert( db->pPreUpdate==0 ); memset(&preupdate, 0, sizeof(PreUpdate)); @@ -85027,8 +89784,8 @@ SQLITE_PRIVATE void sqlite3VdbePreUpdateHook( assert( pCsr!=0 ); assert( pCsr->eCurType==CURTYPE_BTREE ); - assert( pCsr->nField==pTab->nCol - || (pCsr->nField==pTab->nCol+1 && op==SQLITE_DELETE && iReg==-1) + assert( pCsr->nField==nRealCol + || (pCsr->nField==nRealCol+1 && op==SQLITE_DELETE && iReg==-1) ); preupdate.v = v; @@ -85055,7 +89812,7 @@ SQLITE_PRIVATE void sqlite3VdbePreUpdateHook( for(i=0; i<pCsr->nField; i++){ sqlite3VdbeMemRelease(&preupdate.aNew[i]); } - sqlite3DbFreeNN(db, preupdate.aNew); + sqlite3DbNNFreeNN(db, preupdate.aNew); } } #endif /* SQLITE_ENABLE_PREUPDATE_HOOK */ @@ -85079,6 +89836,7 @@ SQLITE_PRIVATE void sqlite3VdbePreUpdateHook( */ /* #include "sqliteInt.h" */ /* #include "vdbeInt.h" */ +/* #include "opcodes.h" */ #ifndef SQLITE_OMIT_DEPRECATED /* @@ -85172,7 +89930,9 @@ SQLITE_API int sqlite3_finalize(sqlite3_stmt *pStmt){ if( vdbeSafety(v) ) return SQLITE_MISUSE_BKPT; sqlite3_mutex_enter(db->mutex); checkProfileCallback(db, v); - rc = sqlite3VdbeFinalize(v); + assert( v->eVdbeState>=VDBE_READY_STATE ); + rc = sqlite3VdbeReset(v); + sqlite3VdbeDelete(v); rc = sqlite3ApiExit(db, rc); sqlite3LeaveMutexAndCloseZombie(db); } @@ -85213,7 +89973,15 @@ SQLITE_API int sqlite3_clear_bindings(sqlite3_stmt *pStmt){ int rc = SQLITE_OK; Vdbe *p = (Vdbe*)pStmt; #if SQLITE_THREADSAFE - sqlite3_mutex *mutex = ((Vdbe*)pStmt)->db->mutex; + sqlite3_mutex *mutex; +#endif +#ifdef SQLITE_ENABLE_API_ARMOR + if( pStmt==0 ){ + return SQLITE_MISUSE_BKPT; + } +#endif +#if SQLITE_THREADSAFE + mutex = p->db->mutex; #endif sqlite3_mutex_enter(mutex); for(i=0; i<p->nVar; i++){ @@ -85332,7 +90100,7 @@ SQLITE_API int sqlite3_value_type(sqlite3_value* pVal){ SQLITE_NULL, /* 0x1f (not possible) */ SQLITE_FLOAT, /* 0x20 INTREAL */ SQLITE_NULL, /* 0x21 (not possible) */ - SQLITE_TEXT, /* 0x22 INTREAL + TEXT */ + SQLITE_FLOAT, /* 0x22 INTREAL + TEXT */ SQLITE_NULL, /* 0x23 (not possible) */ SQLITE_FLOAT, /* 0x24 (not possible) */ SQLITE_NULL, /* 0x25 (not possible) */ @@ -85380,6 +90148,9 @@ SQLITE_API int sqlite3_value_type(sqlite3_value* pVal){ #endif return aType[pVal->flags&MEM_AffMask]; } +SQLITE_API int sqlite3_value_encoding(sqlite3_value *pVal){ + return pVal->enc; +} /* Return true if a parameter to xUpdate represents an unchanged column */ SQLITE_API int sqlite3_value_nochange(sqlite3_value *pVal){ @@ -85409,6 +90180,9 @@ SQLITE_API sqlite3_value *sqlite3_value_dup(const sqlite3_value *pOrig){ sqlite3ValueFree(pNew); pNew = 0; } + }else if( pNew->flags & MEM_Null ){ + /* Do not duplicate pointer values */ + pNew->flags &= ~(MEM_Term|MEM_Subtype); } return pNew; } @@ -85430,7 +90204,7 @@ SQLITE_API void sqlite3_value_free(sqlite3_value *pOld){ ** is too big or if an OOM occurs. ** ** The invokeValueDestructor(P,X) routine invokes destructor function X() -** on value P is not going to be used and need to be destroyed. +** on value P if P is not going to be used and need to be destroyed. */ static void setResultStrOrError( sqlite3_context *pCtx, /* Function context */ @@ -85439,7 +90213,8 @@ static void setResultStrOrError( u8 enc, /* Encoding of z. 0 for BLOBs */ void (*xDel)(void*) /* Destructor function */ ){ - int rc = sqlite3VdbeMemSetStr(pCtx->pOut, z, n, enc, xDel); + Mem *pOut = pCtx->pOut; + int rc = sqlite3VdbeMemSetStr(pOut, z, n, enc, xDel); if( rc ){ if( rc==SQLITE_TOOBIG ){ sqlite3_result_error_toobig(pCtx); @@ -85449,12 +90224,17 @@ static void setResultStrOrError( assert( rc==SQLITE_NOMEM ); sqlite3_result_error_nomem(pCtx); } + return; + } + sqlite3VdbeChangeEncoding(pOut, pCtx->enc); + if( sqlite3VdbeMemTooBig(pOut) ){ + sqlite3_result_error_toobig(pCtx); } } static int invokeValueDestructor( const void *p, /* Value to destroy */ void (*xDel)(void*), /* The destructor */ - sqlite3_context *pCtx /* Set a SQLITE_TOOBIG error if no NULL */ + sqlite3_context *pCtx /* Set a SQLITE_TOOBIG error if not NULL */ ){ assert( xDel!=SQLITE_DYNAMIC ); if( xDel==0 ){ @@ -85464,7 +90244,14 @@ static int invokeValueDestructor( }else{ xDel((void*)p); } +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx!=0 ){ + sqlite3_result_error_toobig(pCtx); + } +#else + assert( pCtx!=0 ); sqlite3_result_error_toobig(pCtx); +#endif return SQLITE_TOOBIG; } SQLITE_API void sqlite3_result_blob( @@ -85473,6 +90260,12 @@ SQLITE_API void sqlite3_result_blob( int n, void (*xDel)(void *) ){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 || n<0 ){ + invokeValueDestructor(z, xDel, pCtx); + return; + } +#endif assert( n>=0 ); assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); setResultStrOrError(pCtx, z, n, 0, xDel); @@ -85483,8 +90276,14 @@ SQLITE_API void sqlite3_result_blob64( sqlite3_uint64 n, void (*xDel)(void *) ){ - assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); assert( xDel!=SQLITE_DYNAMIC ); +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ){ + invokeValueDestructor(z, xDel, 0); + return; + } +#endif + assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); if( n>0x7fffffff ){ (void)invokeValueDestructor(z, xDel, pCtx); }else{ @@ -85492,30 +90291,48 @@ SQLITE_API void sqlite3_result_blob64( } } SQLITE_API void sqlite3_result_double(sqlite3_context *pCtx, double rVal){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; +#endif assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemSetDouble(pCtx->pOut, rVal); } SQLITE_API void sqlite3_result_error(sqlite3_context *pCtx, const char *z, int n){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; +#endif assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); pCtx->isError = SQLITE_ERROR; sqlite3VdbeMemSetStr(pCtx->pOut, z, n, SQLITE_UTF8, SQLITE_TRANSIENT); } #ifndef SQLITE_OMIT_UTF16 SQLITE_API void sqlite3_result_error16(sqlite3_context *pCtx, const void *z, int n){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; +#endif assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); pCtx->isError = SQLITE_ERROR; sqlite3VdbeMemSetStr(pCtx->pOut, z, n, SQLITE_UTF16NATIVE, SQLITE_TRANSIENT); } #endif SQLITE_API void sqlite3_result_int(sqlite3_context *pCtx, int iVal){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; +#endif assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemSetInt64(pCtx->pOut, (i64)iVal); } SQLITE_API void sqlite3_result_int64(sqlite3_context *pCtx, i64 iVal){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; +#endif assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemSetInt64(pCtx->pOut, iVal); } SQLITE_API void sqlite3_result_null(sqlite3_context *pCtx){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; +#endif assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemSetNull(pCtx->pOut); } @@ -85525,14 +90342,37 @@ SQLITE_API void sqlite3_result_pointer( const char *zPType, void (*xDestructor)(void*) ){ - Mem *pOut = pCtx->pOut; + Mem *pOut; +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ){ + invokeValueDestructor(pPtr, xDestructor, 0); + return; + } +#endif + pOut = pCtx->pOut; assert( sqlite3_mutex_held(pOut->db->mutex) ); sqlite3VdbeMemRelease(pOut); pOut->flags = MEM_Null; sqlite3VdbeMemSetPointer(pOut, pPtr, zPType, xDestructor); } SQLITE_API void sqlite3_result_subtype(sqlite3_context *pCtx, unsigned int eSubtype){ - Mem *pOut = pCtx->pOut; + Mem *pOut; +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; +#endif +#if defined(SQLITE_STRICT_SUBTYPE) && SQLITE_STRICT_SUBTYPE+0!=0 + if( pCtx->pFunc!=0 + && (pCtx->pFunc->funcFlags & SQLITE_RESULT_SUBTYPE)==0 + ){ + char zErr[200]; + sqlite3_snprintf(sizeof(zErr), zErr, + "misuse of sqlite3_result_subtype() by %s()", + pCtx->pFunc->zName); + sqlite3_result_error(pCtx, zErr, -1); + return; + } +#endif /* SQLITE_STRICT_SUBTYPE */ + pOut = pCtx->pOut; assert( sqlite3_mutex_held(pOut->db->mutex) ); pOut->eSubtype = eSubtype & 0xff; pOut->flags |= MEM_Subtype; @@ -85543,6 +90383,12 @@ SQLITE_API void sqlite3_result_text( int n, void (*xDel)(void *) ){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ){ + invokeValueDestructor(z, xDel, 0); + return; + } +#endif assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); setResultStrOrError(pCtx, z, n, SQLITE_UTF8, xDel); } @@ -85553,13 +90399,23 @@ SQLITE_API void sqlite3_result_text64( void (*xDel)(void *), unsigned char enc ){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ){ + invokeValueDestructor(z, xDel, 0); + return; + } +#endif assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); assert( xDel!=SQLITE_DYNAMIC ); - if( enc==SQLITE_UTF16 ) enc = SQLITE_UTF16NATIVE; + if( enc!=SQLITE_UTF8 ){ + if( enc==SQLITE_UTF16 ) enc = SQLITE_UTF16NATIVE; + n &= ~(u64)1; + } if( n>0x7fffffff ){ (void)invokeValueDestructor(z, xDel, pCtx); }else{ setResultStrOrError(pCtx, z, (int)n, enc, xDel); + sqlite3VdbeMemZeroTerminateIfAble(pCtx->pOut); } } #ifndef SQLITE_OMIT_UTF16 @@ -85570,7 +90426,7 @@ SQLITE_API void sqlite3_result_text16( void (*xDel)(void *) ){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); - setResultStrOrError(pCtx, z, n, SQLITE_UTF16NATIVE, xDel); + setResultStrOrError(pCtx, z, n & ~(u64)1, SQLITE_UTF16NATIVE, xDel); } SQLITE_API void sqlite3_result_text16be( sqlite3_context *pCtx, @@ -85579,7 +90435,7 @@ SQLITE_API void sqlite3_result_text16be( void (*xDel)(void *) ){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); - setResultStrOrError(pCtx, z, n, SQLITE_UTF16BE, xDel); + setResultStrOrError(pCtx, z, n & ~(u64)1, SQLITE_UTF16BE, xDel); } SQLITE_API void sqlite3_result_text16le( sqlite3_context *pCtx, @@ -85588,21 +90444,40 @@ SQLITE_API void sqlite3_result_text16le( void (*xDel)(void *) ){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); - setResultStrOrError(pCtx, z, n, SQLITE_UTF16LE, xDel); + setResultStrOrError(pCtx, z, n & ~(u64)1, SQLITE_UTF16LE, xDel); } #endif /* SQLITE_OMIT_UTF16 */ SQLITE_API void sqlite3_result_value(sqlite3_context *pCtx, sqlite3_value *pValue){ + Mem *pOut; + +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; + if( pValue==0 ){ + sqlite3_result_null(pCtx); + return; + } +#endif + pOut = pCtx->pOut; assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); - sqlite3VdbeMemCopy(pCtx->pOut, pValue); + sqlite3VdbeMemCopy(pOut, pValue); + sqlite3VdbeChangeEncoding(pOut, pCtx->enc); + if( sqlite3VdbeMemTooBig(pOut) ){ + sqlite3_result_error_toobig(pCtx); + } } SQLITE_API void sqlite3_result_zeroblob(sqlite3_context *pCtx, int n){ - assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); - sqlite3VdbeMemSetZeroBlob(pCtx->pOut, n); + sqlite3_result_zeroblob64(pCtx, n>0 ? n : 0); } SQLITE_API int sqlite3_result_zeroblob64(sqlite3_context *pCtx, u64 n){ - Mem *pOut = pCtx->pOut; + Mem *pOut; + +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return SQLITE_MISUSE_BKPT; +#endif + pOut = pCtx->pOut; assert( sqlite3_mutex_held(pOut->db->mutex) ); if( n>(u64)pOut->db->aLimit[SQLITE_LIMIT_LENGTH] ){ + sqlite3_result_error_toobig(pCtx); return SQLITE_TOOBIG; } #ifndef SQLITE_OMIT_INCRBLOB @@ -85613,18 +90488,24 @@ SQLITE_API int sqlite3_result_zeroblob64(sqlite3_context *pCtx, u64 n){ #endif } SQLITE_API void sqlite3_result_error_code(sqlite3_context *pCtx, int errCode){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; +#endif pCtx->isError = errCode ? errCode : -1; #ifdef SQLITE_DEBUG if( pCtx->pVdbe ) pCtx->pVdbe->rcApp = errCode; #endif if( pCtx->pOut->flags & MEM_Null ){ - sqlite3VdbeMemSetStr(pCtx->pOut, sqlite3ErrStr(errCode), -1, - SQLITE_UTF8, SQLITE_STATIC); + setResultStrOrError(pCtx, sqlite3ErrStr(errCode), -1, SQLITE_UTF8, + SQLITE_STATIC); } } /* Force an SQLITE_TOOBIG error. */ SQLITE_API void sqlite3_result_error_toobig(sqlite3_context *pCtx){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; +#endif assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); pCtx->isError = SQLITE_TOOBIG; sqlite3VdbeMemSetStr(pCtx->pOut, "string or blob too big", -1, @@ -85633,6 +90514,9 @@ SQLITE_API void sqlite3_result_error_toobig(sqlite3_context *pCtx){ /* An SQLITE_NOMEM error. */ SQLITE_API void sqlite3_result_error_nomem(sqlite3_context *pCtx){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; +#endif assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemSetNull(pCtx->pOut); pCtx->isError = SQLITE_NOMEM_BKPT; @@ -85693,80 +90577,83 @@ static int sqlite3Step(Vdbe *p){ int rc; assert(p); - if( p->iVdbeMagic!=VDBE_MAGIC_RUN ){ - /* We used to require that sqlite3_reset() be called before retrying - ** sqlite3_step() after any error or after SQLITE_DONE. But beginning - ** with version 3.7.0, we changed this so that sqlite3_reset() would - ** be called automatically instead of throwing the SQLITE_MISUSE error. - ** This "automatic-reset" change is not technically an incompatibility, - ** since any application that receives an SQLITE_MISUSE is broken by - ** definition. - ** - ** Nevertheless, some published applications that were originally written - ** for version 3.6.23 or earlier do in fact depend on SQLITE_MISUSE - ** returns, and those were broken by the automatic-reset change. As a - ** a work-around, the SQLITE_OMIT_AUTORESET compile-time restores the - ** legacy behavior of returning SQLITE_MISUSE for cases where the - ** previous sqlite3_step() returned something other than a SQLITE_LOCKED - ** or SQLITE_BUSY error. - */ -#ifdef SQLITE_OMIT_AUTORESET - if( (rc = p->rc&0xff)==SQLITE_BUSY || rc==SQLITE_LOCKED ){ - sqlite3_reset((sqlite3_stmt*)p); - }else{ - return SQLITE_MISUSE_BKPT; - } -#else - sqlite3_reset((sqlite3_stmt*)p); -#endif - } - - /* Check that malloc() has not failed. If it has, return early. */ db = p->db; - if( db->mallocFailed ){ - p->rc = SQLITE_NOMEM; - return SQLITE_NOMEM_BKPT; - } + if( p->eVdbeState!=VDBE_RUN_STATE ){ + restart_step: + if( p->eVdbeState==VDBE_READY_STATE ){ + if( p->expired ){ + p->rc = SQLITE_SCHEMA; + rc = SQLITE_ERROR; + if( (p->prepFlags & SQLITE_PREPARE_SAVESQL)!=0 ){ + /* If this statement was prepared using saved SQL and an + ** error has occurred, then return the error code in p->rc to the + ** caller. Set the error code in the database handle to the same + ** value. + */ + rc = sqlite3VdbeTransferError(p); + } + goto end_of_step; + } - if( p->pc<0 && p->expired ){ - p->rc = SQLITE_SCHEMA; - rc = SQLITE_ERROR; - if( (p->prepFlags & SQLITE_PREPARE_SAVESQL)!=0 ){ - /* If this statement was prepared using saved SQL and an - ** error has occurred, then return the error code in p->rc to the - ** caller. Set the error code in the database handle to the same value. + /* If there are no other statements currently running, then + ** reset the interrupt flag. This prevents a call to sqlite3_interrupt + ** from interrupting a statement that has not yet started. */ - rc = sqlite3VdbeTransferError(p); - } - goto end_of_step; - } - if( p->pc<0 ){ - /* If there are no other statements currently running, then - ** reset the interrupt flag. This prevents a call to sqlite3_interrupt - ** from interrupting a statement that has not yet started. - */ - if( db->nVdbeActive==0 ){ - AtomicStore(&db->u1.isInterrupted, 0); - } + if( db->nVdbeActive==0 ){ + AtomicStore(&db->u1.isInterrupted, 0); + } - assert( db->nVdbeWrite>0 || db->autoCommit==0 - || (db->nDeferredCons==0 && db->nDeferredImmCons==0) - ); + assert( db->nVdbeWrite>0 || db->autoCommit==0 + || (db->nDeferredCons==0 && db->nDeferredImmCons==0) + ); #ifndef SQLITE_OMIT_TRACE - if( (db->mTrace & (SQLITE_TRACE_PROFILE|SQLITE_TRACE_XPROFILE))!=0 - && !db->init.busy && p->zSql ){ - sqlite3OsCurrentTimeInt64(db->pVfs, &p->startTime); - }else{ - assert( p->startTime==0 ); - } + if( (db->mTrace & (SQLITE_TRACE_PROFILE|SQLITE_TRACE_XPROFILE))!=0 + && !db->init.busy && p->zSql ){ + sqlite3OsCurrentTimeInt64(db->pVfs, &p->startTime); + }else{ + assert( p->startTime==0 ); + } #endif - db->nVdbeActive++; - if( p->readOnly==0 ) db->nVdbeWrite++; - if( p->bIsReader ) db->nVdbeRead++; - p->pc = 0; + db->nVdbeActive++; + if( p->readOnly==0 ) db->nVdbeWrite++; + if( p->bIsReader ) db->nVdbeRead++; + p->pc = 0; + p->eVdbeState = VDBE_RUN_STATE; + }else + + if( ALWAYS(p->eVdbeState==VDBE_HALT_STATE) ){ + /* We used to require that sqlite3_reset() be called before retrying + ** sqlite3_step() after any error or after SQLITE_DONE. But beginning + ** with version 3.7.0, we changed this so that sqlite3_reset() would + ** be called automatically instead of throwing the SQLITE_MISUSE error. + ** This "automatic-reset" change is not technically an incompatibility, + ** since any application that receives an SQLITE_MISUSE is broken by + ** definition. + ** + ** Nevertheless, some published applications that were originally written + ** for version 3.6.23 or earlier do in fact depend on SQLITE_MISUSE + ** returns, and those were broken by the automatic-reset change. As a + ** a work-around, the SQLITE_OMIT_AUTORESET compile-time restores the + ** legacy behavior of returning SQLITE_MISUSE for cases where the + ** previous sqlite3_step() returned something other than a SQLITE_LOCKED + ** or SQLITE_BUSY error. + */ +#ifdef SQLITE_OMIT_AUTORESET + if( (rc = p->rc&0xff)==SQLITE_BUSY || rc==SQLITE_LOCKED ){ + sqlite3_reset((sqlite3_stmt*)p); + }else{ + return SQLITE_MISUSE_BKPT; + } +#else + sqlite3_reset((sqlite3_stmt*)p); +#endif + assert( p->eVdbeState==VDBE_READY_STATE ); + goto restart_step; + } } + #ifdef SQLITE_DEBUG p->rcApp = SQLITE_OK; #endif @@ -85781,12 +90668,17 @@ static int sqlite3Step(Vdbe *p){ db->nVdbeExec--; } - if( rc!=SQLITE_ROW ){ + if( rc==SQLITE_ROW ){ + assert( p->rc==SQLITE_OK ); + assert( db->mallocFailed==0 ); + db->errCode = SQLITE_ROW; + return SQLITE_ROW; + }else{ #ifndef SQLITE_OMIT_TRACE /* If the statement completed successfully, invoke the profile callback */ checkProfileCallback(db, p); #endif - + p->pResultRow = 0; if( rc==SQLITE_DONE && db->autoCommit ){ assert( p->rc==SQLITE_OK ); p->rc = doWalCallbacks(db); @@ -85833,7 +90725,6 @@ SQLITE_API int sqlite3_step(sqlite3_stmt *pStmt){ } db = v->db; sqlite3_mutex_enter(db->mutex); - v->doingRerun = 0; while( (rc = sqlite3Step(v))==SQLITE_SCHEMA && cnt++ < SQLITE_MAX_SCHEMA_RETRY ){ int savedPc = v->pc; @@ -85859,7 +90750,13 @@ SQLITE_API int sqlite3_step(sqlite3_stmt *pStmt){ break; } sqlite3_reset(pStmt); - if( savedPc>=0 ) v->doingRerun = 1; + if( savedPc>=0 ){ + /* Setting minWriteFileFormat to 254 is a signal to the OP_Init and + ** OP_Trace opcodes to *not* perform SQLITE_TRACE_STMT because it has + ** already been done once on a prior invocation that failed due to + ** SQLITE_SCHEMA. tag-20220401a */ + v->minWriteFileFormat = 254; + } assert( v->expired==0 ); } sqlite3_mutex_leave(db->mutex); @@ -85872,6 +90769,9 @@ SQLITE_API int sqlite3_step(sqlite3_stmt *pStmt){ ** pointer to it. */ SQLITE_API void *sqlite3_user_data(sqlite3_context *p){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( p==0 ) return 0; +#endif assert( p && p->pFunc ); return p->pFunc->pUserData; } @@ -85887,7 +90787,11 @@ SQLITE_API void *sqlite3_user_data(sqlite3_context *p){ ** application defined function. */ SQLITE_API sqlite3 *sqlite3_context_db_handle(sqlite3_context *p){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( p==0 ) return 0; +#else assert( p && p->pOut ); +#endif return p->pOut->db; } @@ -85906,11 +90810,26 @@ SQLITE_API sqlite3 *sqlite3_context_db_handle(sqlite3_context *p){ ** value, as a signal to the xUpdate routine that the column is unchanged. */ SQLITE_API int sqlite3_vtab_nochange(sqlite3_context *p){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( p==0 ) return 0; +#else assert( p ); +#endif return sqlite3_value_nochange(p->pOut); } /* +** The destructor function for a ValueList object. This needs to be +** a separate function, unknowable to the application, to ensure that +** calls to sqlite3_vtab_in_first()/sqlite3_vtab_in_next() that are not +** preceded by activation of IN processing via sqlite3_vtab_int() do not +** try to access a fake ValueList object inserted by a hostile extension. +*/ +SQLITE_PRIVATE void sqlite3VdbeValueListFree(void *pToDelete){ + sqlite3_free(pToDelete); +} + +/* ** Implementation of sqlite3_vtab_in_first() (if bNext==0) and ** sqlite3_vtab_in_next() (if bNext!=0). */ @@ -85923,9 +90842,16 @@ static int valueFromValueList( ValueList *pRhs; *ppOut = 0; - if( pVal==0 ) return SQLITE_MISUSE; - pRhs = (ValueList*)sqlite3_value_pointer(pVal, "ValueList"); - if( pRhs==0 ) return SQLITE_MISUSE; + if( pVal==0 ) return SQLITE_MISUSE_BKPT; + if( (pVal->flags & MEM_Dyn)==0 || pVal->xDel!=sqlite3VdbeValueListFree ){ + return SQLITE_ERROR; + }else{ + assert( (pVal->flags&(MEM_TypeMask|MEM_Term|MEM_Subtype)) == + (MEM_Null|MEM_Term|MEM_Subtype) ); + assert( pVal->eSubtype=='p' ); + assert( pVal->u.zPType!=0 && strcmp(pVal->u.zPType,"ValueList")==0 ); + pRhs = (ValueList*)pVal->z; + } if( bNext ){ rc = sqlite3BtreeNext(pRhs->pCsr, 0); }else{ @@ -86047,6 +90973,9 @@ SQLITE_API void *sqlite3_aggregate_context(sqlite3_context *p, int nByte){ SQLITE_API void *sqlite3_get_auxdata(sqlite3_context *pCtx, int iArg){ AuxData *pAuxData; +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return 0; +#endif assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); #if SQLITE_ENABLE_STAT4 if( pCtx->pVdbe==0 ) return 0; @@ -86079,8 +91008,12 @@ SQLITE_API void sqlite3_set_auxdata( void (*xDelete)(void*) ){ AuxData *pAuxData; - Vdbe *pVdbe = pCtx->pVdbe; + Vdbe *pVdbe; +#ifdef SQLITE_ENABLE_API_ARMOR + if( pCtx==0 ) return; +#endif + pVdbe= pCtx->pVdbe; assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); #ifdef SQLITE_ENABLE_STAT4 if( pVdbe==0 ) goto failed; @@ -86136,7 +91069,8 @@ SQLITE_API int sqlite3_aggregate_count(sqlite3_context *p){ */ SQLITE_API int sqlite3_column_count(sqlite3_stmt *pStmt){ Vdbe *pVm = (Vdbe *)pStmt; - return pVm ? pVm->nResColumn : 0; + if( pVm==0 ) return 0; + return pVm->nResColumn; } /* @@ -86145,7 +91079,7 @@ SQLITE_API int sqlite3_column_count(sqlite3_stmt *pStmt){ */ SQLITE_API int sqlite3_data_count(sqlite3_stmt *pStmt){ Vdbe *pVm = (Vdbe *)pStmt; - if( pVm==0 || pVm->pResultSet==0 ) return 0; + if( pVm==0 || pVm->pResultRow==0 ) return 0; return pVm->nResColumn; } @@ -86168,15 +91102,15 @@ static const Mem *columnNullValue(void){ #endif = { /* .u = */ {0}, + /* .z = */ (char*)0, + /* .n = */ (int)0, /* .flags = */ (u16)MEM_Null, /* .enc = */ (u8)0, /* .eSubtype = */ (u8)0, - /* .n = */ (int)0, - /* .z = */ (char*)0, - /* .zMalloc = */ (char*)0, + /* .db = */ (sqlite3*)0, /* .szMalloc = */ (int)0, /* .uTemp = */ (u32)0, - /* .db = */ (sqlite3*)0, + /* .zMalloc = */ (char*)0, /* .xDel = */ (void(*)(void*))0, #ifdef SQLITE_DEBUG /* .pScopyFrom = */ (Mem*)0, @@ -86200,8 +91134,8 @@ static Mem *columnMem(sqlite3_stmt *pStmt, int i){ if( pVm==0 ) return (Mem*)columnNullValue(); assert( pVm->db ); sqlite3_mutex_enter(pVm->db->mutex); - if( pVm->pResultSet!=0 && i<pVm->nResColumn && i>=0 ){ - pOut = &pVm->pResultSet[i]; + if( pVm->pResultRow!=0 && i<pVm->nResColumn && i>=0 ){ + pOut = &pVm->pResultRow[i]; }else{ sqlite3Error(pVm->db, SQLITE_RANGE); pOut = (Mem*)columnNullValue(); @@ -86225,7 +91159,7 @@ static Mem *columnMem(sqlite3_stmt *pStmt, int i){ ** sqlite3_column_real() ** sqlite3_column_bytes() ** sqlite3_column_bytes16() -** sqiite3_column_blob() +** sqlite3_column_blob() */ static void columnMallocFailure(sqlite3_stmt *pStmt) { @@ -86310,6 +91244,32 @@ SQLITE_API int sqlite3_column_type(sqlite3_stmt *pStmt, int i){ } /* +** Column names appropriate for EXPLAIN or EXPLAIN QUERY PLAN. +*/ +static const char * const azExplainColNames8[] = { + "addr", "opcode", "p1", "p2", "p3", "p4", "p5", "comment", /* EXPLAIN */ + "id", "parent", "notused", "detail" /* EQP */ +}; +static const u16 azExplainColNames16data[] = { + /* 0 */ 'a', 'd', 'd', 'r', 0, + /* 5 */ 'o', 'p', 'c', 'o', 'd', 'e', 0, + /* 12 */ 'p', '1', 0, + /* 15 */ 'p', '2', 0, + /* 18 */ 'p', '3', 0, + /* 21 */ 'p', '4', 0, + /* 24 */ 'p', '5', 0, + /* 27 */ 'c', 'o', 'm', 'm', 'e', 'n', 't', 0, + /* 35 */ 'i', 'd', 0, + /* 38 */ 'p', 'a', 'r', 'e', 'n', 't', 0, + /* 45 */ 'n', 'o', 't', 'u', 's', 'e', 'd', 0, + /* 53 */ 'd', 'e', 't', 'a', 'i', 'l', 0 +}; +static const u8 iExplainColNames16[] = { + 0, 5, 12, 15, 18, 21, 24, 27, + 35, 38, 45, 53 +}; + +/* ** Convert the N-th element of pStmt->pColName[] into a string using ** xFunc() then return that string. If N is out of range, return 0. ** @@ -86341,15 +91301,29 @@ static const void *columnName( return 0; } #endif + if( N<0 ) return 0; ret = 0; p = (Vdbe *)pStmt; db = p->db; assert( db!=0 ); - n = sqlite3_column_count(pStmt); - if( N<n && N>=0 ){ + sqlite3_mutex_enter(db->mutex); + + if( p->explain ){ + if( useType>0 ) goto columnName_end; + n = p->explain==1 ? 8 : 4; + if( N>=n ) goto columnName_end; + if( useUtf16 ){ + int i = iExplainColNames16[N + 8*p->explain - 8]; + ret = (void*)&azExplainColNames16data[i]; + }else{ + ret = (void*)azExplainColNames8[N + 8*p->explain - 8]; + } + goto columnName_end; + } + n = p->nResColumn; + if( N<n ){ + u8 prior_mallocFailed = db->mallocFailed; N += useType*n; - sqlite3_mutex_enter(db->mutex); - assert( db->mallocFailed==0 ); #ifndef SQLITE_OMIT_UTF16 if( useUtf16 ){ ret = sqlite3_value_text16((sqlite3_value*)&p->aColName[N]); @@ -86361,12 +91335,14 @@ static const void *columnName( /* A malloc may have failed inside of the _text() call. If this ** is the case, clear the mallocFailed flag and return NULL. */ - if( db->mallocFailed ){ + assert( db->mallocFailed==0 || db->mallocFailed==1 ); + if( db->mallocFailed > prior_mallocFailed ){ sqlite3OomClear(db); ret = 0; } - sqlite3_mutex_leave(db->mutex); } +columnName_end: + sqlite3_mutex_leave(db->mutex); return ret; } @@ -86459,7 +91435,7 @@ SQLITE_API const void *sqlite3_column_origin_name16(sqlite3_stmt *pStmt, int N){ /* ** Unbind the value bound to variable i in virtual machine p. This is the ** the same as binding a NULL value to the column. If the "i" parameter is -** out of range, then SQLITE_RANGE is returned. Othewise SQLITE_OK. +** out of range, then SQLITE_RANGE is returned. Otherwise SQLITE_OK. ** ** A successful evaluation of this routine acquires the mutex on p. ** the mutex is released if any kind of error occurs. @@ -86467,25 +91443,24 @@ SQLITE_API const void *sqlite3_column_origin_name16(sqlite3_stmt *pStmt, int N){ ** The error code stored in database p->db is overwritten with the return ** value in any case. */ -static int vdbeUnbind(Vdbe *p, int i){ +static int vdbeUnbind(Vdbe *p, unsigned int i){ Mem *pVar; if( vdbeSafetyNotNull(p) ){ return SQLITE_MISUSE_BKPT; } sqlite3_mutex_enter(p->db->mutex); - if( p->iVdbeMagic!=VDBE_MAGIC_RUN || p->pc>=0 ){ - sqlite3Error(p->db, SQLITE_MISUSE); + if( p->eVdbeState!=VDBE_READY_STATE ){ + sqlite3Error(p->db, SQLITE_MISUSE_BKPT); sqlite3_mutex_leave(p->db->mutex); sqlite3_log(SQLITE_MISUSE, "bind on a busy prepared statement: [%s]", p->zSql); return SQLITE_MISUSE_BKPT; } - if( i<1 || i>p->nVar ){ + if( i>=(unsigned int)p->nVar ){ sqlite3Error(p->db, SQLITE_RANGE); sqlite3_mutex_leave(p->db->mutex); return SQLITE_RANGE; } - i--; pVar = &p->aVar[i]; sqlite3VdbeMemRelease(pVar); pVar->flags = MEM_Null; @@ -86522,7 +91497,7 @@ static int bindText( Mem *pVar; int rc; - rc = vdbeUnbind(p, i); + rc = vdbeUnbind(p, (u32)(i-1)); if( rc==SQLITE_OK ){ if( zData!=0 ){ pVar = &p->aVar[i-1]; @@ -86571,7 +91546,7 @@ SQLITE_API int sqlite3_bind_blob64( SQLITE_API int sqlite3_bind_double(sqlite3_stmt *pStmt, int i, double rValue){ int rc; Vdbe *p = (Vdbe *)pStmt; - rc = vdbeUnbind(p, i); + rc = vdbeUnbind(p, (u32)(i-1)); if( rc==SQLITE_OK ){ sqlite3VdbeMemSetDouble(&p->aVar[i-1], rValue); sqlite3_mutex_leave(p->db->mutex); @@ -86584,7 +91559,7 @@ SQLITE_API int sqlite3_bind_int(sqlite3_stmt *p, int i, int iValue){ SQLITE_API int sqlite3_bind_int64(sqlite3_stmt *pStmt, int i, sqlite_int64 iValue){ int rc; Vdbe *p = (Vdbe *)pStmt; - rc = vdbeUnbind(p, i); + rc = vdbeUnbind(p, (u32)(i-1)); if( rc==SQLITE_OK ){ sqlite3VdbeMemSetInt64(&p->aVar[i-1], iValue); sqlite3_mutex_leave(p->db->mutex); @@ -86594,7 +91569,7 @@ SQLITE_API int sqlite3_bind_int64(sqlite3_stmt *pStmt, int i, sqlite_int64 iValu SQLITE_API int sqlite3_bind_null(sqlite3_stmt *pStmt, int i){ int rc; Vdbe *p = (Vdbe*)pStmt; - rc = vdbeUnbind(p, i); + rc = vdbeUnbind(p, (u32)(i-1)); if( rc==SQLITE_OK ){ sqlite3_mutex_leave(p->db->mutex); } @@ -86609,7 +91584,7 @@ SQLITE_API int sqlite3_bind_pointer( ){ int rc; Vdbe *p = (Vdbe*)pStmt; - rc = vdbeUnbind(p, i); + rc = vdbeUnbind(p, (u32)(i-1)); if( rc==SQLITE_OK ){ sqlite3VdbeMemSetPointer(&p->aVar[i-1], pPtr, zPTtype, xDestructor); sqlite3_mutex_leave(p->db->mutex); @@ -86636,7 +91611,10 @@ SQLITE_API int sqlite3_bind_text64( unsigned char enc ){ assert( xDel!=SQLITE_DYNAMIC ); - if( enc==SQLITE_UTF16 ) enc = SQLITE_UTF16NATIVE; + if( enc!=SQLITE_UTF8 ){ + if( enc==SQLITE_UTF16 ) enc = SQLITE_UTF16NATIVE; + nData &= ~(u16)1; + } return bindText(pStmt, i, zData, nData, xDel, enc); } #ifndef SQLITE_OMIT_UTF16 @@ -86644,10 +91622,10 @@ SQLITE_API int sqlite3_bind_text16( sqlite3_stmt *pStmt, int i, const void *zData, - int nData, + int n, void (*xDel)(void*) ){ - return bindText(pStmt, i, zData, nData, xDel, SQLITE_UTF16NATIVE); + return bindText(pStmt, i, zData, n & ~(u64)1, xDel, SQLITE_UTF16NATIVE); } #endif /* SQLITE_OMIT_UTF16 */ SQLITE_API int sqlite3_bind_value(sqlite3_stmt *pStmt, int i, const sqlite3_value *pValue){ @@ -86687,7 +91665,7 @@ SQLITE_API int sqlite3_bind_value(sqlite3_stmt *pStmt, int i, const sqlite3_valu SQLITE_API int sqlite3_bind_zeroblob(sqlite3_stmt *pStmt, int i, int n){ int rc; Vdbe *p = (Vdbe *)pStmt; - rc = vdbeUnbind(p, i); + rc = vdbeUnbind(p, (u32)(i-1)); if( rc==SQLITE_OK ){ #ifndef SQLITE_OMIT_INCRBLOB sqlite3VdbeMemSetZeroBlob(&p->aVar[i-1], n); @@ -86701,6 +91679,9 @@ SQLITE_API int sqlite3_bind_zeroblob(sqlite3_stmt *pStmt, int i, int n){ SQLITE_API int sqlite3_bind_zeroblob64(sqlite3_stmt *pStmt, int i, sqlite3_uint64 n){ int rc; Vdbe *p = (Vdbe *)pStmt; +#ifdef SQLITE_ENABLE_API_ARMOR + if( p==0 ) return SQLITE_MISUSE_BKPT; +#endif sqlite3_mutex_enter(p->db->mutex); if( n>(u64)p->db->aLimit[SQLITE_LIMIT_LENGTH] ){ rc = SQLITE_TOOBIG; @@ -86822,11 +91803,47 @@ SQLITE_API int sqlite3_stmt_isexplain(sqlite3_stmt *pStmt){ } /* +** Set the explain mode for a statement. +*/ +SQLITE_API int sqlite3_stmt_explain(sqlite3_stmt *pStmt, int eMode){ + Vdbe *v = (Vdbe*)pStmt; + int rc; +#ifdef SQLITE_ENABLE_API_ARMOR + if( pStmt==0 ) return SQLITE_MISUSE_BKPT; +#endif + sqlite3_mutex_enter(v->db->mutex); + if( ((int)v->explain)==eMode ){ + rc = SQLITE_OK; + }else if( eMode<0 || eMode>2 ){ + rc = SQLITE_ERROR; + }else if( (v->prepFlags & SQLITE_PREPARE_SAVESQL)==0 ){ + rc = SQLITE_ERROR; + }else if( v->eVdbeState!=VDBE_READY_STATE ){ + rc = SQLITE_BUSY; + }else if( v->nMem>=10 && (eMode!=2 || v->haveEqpOps) ){ + /* No reprepare necessary */ + v->explain = eMode; + rc = SQLITE_OK; + }else{ + v->explain = eMode; + rc = sqlite3Reprepare(v); + v->haveEqpOps = eMode==2; + } + if( v->explain ){ + v->nResColumn = 12 - 4*v->explain; + }else{ + v->nResColumn = v->nResAlloc; + } + sqlite3_mutex_leave(v->db->mutex); + return rc; +} + +/* ** Return true if the prepared statement is in need of being reset. */ SQLITE_API int sqlite3_stmt_busy(sqlite3_stmt *pStmt){ Vdbe *v = (Vdbe*)pStmt; - return v!=0 && v->iVdbeMagic==VDBE_MAGIC_RUN && v->pc>=0; + return v!=0 && v->eVdbeState==VDBE_RUN_STATE; } /* @@ -86847,7 +91864,7 @@ SQLITE_API sqlite3_stmt *sqlite3_next_stmt(sqlite3 *pDb, sqlite3_stmt *pStmt){ if( pStmt==0 ){ pNext = (sqlite3_stmt*)pDb->pVdbe; }else{ - pNext = (sqlite3_stmt*)((Vdbe*)pStmt)->pNext; + pNext = (sqlite3_stmt*)((Vdbe*)pStmt)->pVNext; } sqlite3_mutex_leave(pDb->mutex); return pNext; @@ -86872,9 +91889,11 @@ SQLITE_API int sqlite3_stmt_status(sqlite3_stmt *pStmt, int op, int resetFlag){ sqlite3_mutex_enter(db->mutex); v = 0; db->pnBytesFreed = (int*)&v; - sqlite3VdbeClearObject(db, pVdbe); - sqlite3DbFree(db, pVdbe); + assert( db->lookaside.pEnd==db->lookaside.pTrueEnd ); + db->lookaside.pEnd = db->lookaside.pStart; + sqlite3VdbeDelete(pVdbe); db->pnBytesFreed = 0; + db->lookaside.pEnd = db->lookaside.pTrueEnd; sqlite3_mutex_leave(db->mutex); }else{ v = pVdbe->aCounter[op]; @@ -86958,10 +91977,16 @@ static UnpackedRecord *vdbeUnpackRecord( ** a field of the row currently being updated or deleted. */ SQLITE_API int sqlite3_preupdate_old(sqlite3 *db, int iIdx, sqlite3_value **ppValue){ - PreUpdate *p = db->pPreUpdate; + PreUpdate *p; Mem *pMem; int rc = SQLITE_OK; +#ifdef SQLITE_ENABLE_API_ARMOR + if( db==0 || ppValue==0 ){ + return SQLITE_MISUSE_BKPT; + } +#endif + p = db->pPreUpdate; /* Test that this call is being made from within an SQLITE_DELETE or ** SQLITE_UPDATE pre-update callback, and that iIdx is within range. */ if( !p || p->op==SQLITE_INSERT ){ @@ -87022,7 +92047,12 @@ SQLITE_API int sqlite3_preupdate_old(sqlite3 *db, int iIdx, sqlite3_value **ppVa ** the number of columns in the row being updated, deleted or inserted. */ SQLITE_API int sqlite3_preupdate_count(sqlite3 *db){ - PreUpdate *p = db->pPreUpdate; + PreUpdate *p; +#ifdef SQLITE_ENABLE_API_ARMOR + p = db!=0 ? db->pPreUpdate : 0; +#else + p = db->pPreUpdate; +#endif return (p ? p->keyinfo.nKeyField : 0); } #endif /* SQLITE_ENABLE_PREUPDATE_HOOK */ @@ -87040,7 +92070,12 @@ SQLITE_API int sqlite3_preupdate_count(sqlite3 *db){ ** or SET DEFAULT action is considered a trigger. */ SQLITE_API int sqlite3_preupdate_depth(sqlite3 *db){ - PreUpdate *p = db->pPreUpdate; + PreUpdate *p; +#ifdef SQLITE_ENABLE_API_ARMOR + p = db!=0 ? db->pPreUpdate : 0; +#else + p = db->pPreUpdate; +#endif return (p ? p->v->nFrame : 0); } #endif /* SQLITE_ENABLE_PREUPDATE_HOOK */ @@ -87051,7 +92086,12 @@ SQLITE_API int sqlite3_preupdate_depth(sqlite3 *db){ ** only. */ SQLITE_API int sqlite3_preupdate_blobwrite(sqlite3 *db){ - PreUpdate *p = db->pPreUpdate; + PreUpdate *p; +#ifdef SQLITE_ENABLE_API_ARMOR + p = db!=0 ? db->pPreUpdate : 0; +#else + p = db->pPreUpdate; +#endif return (p ? p->iBlobWrite : -1); } #endif @@ -87062,10 +92102,16 @@ SQLITE_API int sqlite3_preupdate_blobwrite(sqlite3 *db){ ** a field of the row currently being updated or inserted. */ SQLITE_API int sqlite3_preupdate_new(sqlite3 *db, int iIdx, sqlite3_value **ppValue){ - PreUpdate *p = db->pPreUpdate; + PreUpdate *p; int rc = SQLITE_OK; Mem *pMem; +#ifdef SQLITE_ENABLE_API_ARMOR + if( db==0 || ppValue==0 ){ + return SQLITE_MISUSE_BKPT; + } +#endif + p = db->pPreUpdate; if( !p || p->op==SQLITE_DELETE ){ rc = SQLITE_MISUSE_BKPT; goto preupdate_new_out; @@ -87136,23 +92182,78 @@ SQLITE_API int sqlite3_preupdate_new(sqlite3 *db, int iIdx, sqlite3_value **ppVa /* ** Return status data for a single loop within query pStmt. */ -SQLITE_API int sqlite3_stmt_scanstatus( +SQLITE_API int sqlite3_stmt_scanstatus_v2( sqlite3_stmt *pStmt, /* Prepared statement being queried */ - int idx, /* Index of loop to report on */ + int iScan, /* Index of loop to report on */ int iScanStatusOp, /* Which metric to return */ + int flags, void *pOut /* OUT: Write the answer here */ ){ Vdbe *p = (Vdbe*)pStmt; - ScanStatus *pScan; - if( idx<0 || idx>=p->nScan ) return 1; - pScan = &p->aScan[idx]; + VdbeOp *aOp; + int nOp; + ScanStatus *pScan = 0; + int idx; + +#ifdef SQLITE_ENABLE_API_ARMOR + if( p==0 || pOut==0 + || iScanStatusOp<SQLITE_SCANSTAT_NLOOP + || iScanStatusOp>SQLITE_SCANSTAT_NCYCLE ){ + return 1; + } +#endif + aOp = p->aOp; + nOp = p->nOp; + if( p->pFrame ){ + VdbeFrame *pFrame; + for(pFrame=p->pFrame; pFrame->pParent; pFrame=pFrame->pParent); + aOp = pFrame->aOp; + nOp = pFrame->nOp; + } + + if( iScan<0 ){ + int ii; + if( iScanStatusOp==SQLITE_SCANSTAT_NCYCLE ){ + i64 res = 0; + for(ii=0; ii<nOp; ii++){ + res += aOp[ii].nCycle; + } + *(i64*)pOut = res; + return 0; + } + return 1; + } + if( flags & SQLITE_SCANSTAT_COMPLEX ){ + idx = iScan; + pScan = &p->aScan[idx]; + }else{ + /* If the COMPLEX flag is clear, then this function must ignore any + ** ScanStatus structures with ScanStatus.addrLoop set to 0. */ + for(idx=0; idx<p->nScan; idx++){ + pScan = &p->aScan[idx]; + if( pScan->zName ){ + iScan--; + if( iScan<0 ) break; + } + } + } + if( idx>=p->nScan ) return 1; + switch( iScanStatusOp ){ case SQLITE_SCANSTAT_NLOOP: { - *(sqlite3_int64*)pOut = p->anExec[pScan->addrLoop]; + if( pScan->addrLoop>0 ){ + *(sqlite3_int64*)pOut = aOp[pScan->addrLoop].nExec; + }else{ + *(sqlite3_int64*)pOut = -1; + } break; } case SQLITE_SCANSTAT_NVISIT: { - *(sqlite3_int64*)pOut = p->anExec[pScan->addrVisit]; + if( pScan->addrVisit>0 ){ + *(sqlite3_int64*)pOut = aOp[pScan->addrVisit].nExec; + }else{ + *(sqlite3_int64*)pOut = -1; + } break; } case SQLITE_SCANSTAT_EST: { @@ -87171,7 +92272,7 @@ SQLITE_API int sqlite3_stmt_scanstatus( } case SQLITE_SCANSTAT_EXPLAIN: { if( pScan->addrExplain ){ - *(const char**)pOut = p->aOp[ pScan->addrExplain ].p4.z; + *(const char**)pOut = aOp[ pScan->addrExplain ].p4.z; }else{ *(const char**)pOut = 0; } @@ -87179,12 +92280,51 @@ SQLITE_API int sqlite3_stmt_scanstatus( } case SQLITE_SCANSTAT_SELECTID: { if( pScan->addrExplain ){ - *(int*)pOut = p->aOp[ pScan->addrExplain ].p1; + *(int*)pOut = aOp[ pScan->addrExplain ].p1; + }else{ + *(int*)pOut = -1; + } + break; + } + case SQLITE_SCANSTAT_PARENTID: { + if( pScan->addrExplain ){ + *(int*)pOut = aOp[ pScan->addrExplain ].p2; }else{ *(int*)pOut = -1; } break; } + case SQLITE_SCANSTAT_NCYCLE: { + i64 res = 0; + if( pScan->aAddrRange[0]==0 ){ + res = -1; + }else{ + int ii; + for(ii=0; ii<ArraySize(pScan->aAddrRange); ii+=2){ + int iIns = pScan->aAddrRange[ii]; + int iEnd = pScan->aAddrRange[ii+1]; + if( iIns==0 ) break; + if( iIns>0 ){ + while( iIns<=iEnd ){ + res += aOp[iIns].nCycle; + iIns++; + } + }else{ + int iOp; + for(iOp=0; iOp<nOp; iOp++){ + Op *pOp = &aOp[iOp]; + if( pOp->p1!=iEnd ) continue; + if( (sqlite3OpcodeProperty[pOp->opcode] & OPFLG_NCYCLE)==0 ){ + continue; + } + res += aOp[iOp].nCycle; + } + } + } + } + *(i64*)pOut = res; + break; + } default: { return 1; } @@ -87193,11 +92333,28 @@ SQLITE_API int sqlite3_stmt_scanstatus( } /* +** Return status data for a single loop within query pStmt. +*/ +SQLITE_API int sqlite3_stmt_scanstatus( + sqlite3_stmt *pStmt, /* Prepared statement being queried */ + int iScan, /* Index of loop to report on */ + int iScanStatusOp, /* Which metric to return */ + void *pOut /* OUT: Write the answer here */ +){ + return sqlite3_stmt_scanstatus_v2(pStmt, iScan, iScanStatusOp, 0, pOut); +} + +/* ** Zero all counters associated with the sqlite3_stmt_scanstatus() data. */ SQLITE_API void sqlite3_stmt_scanstatus_reset(sqlite3_stmt *pStmt){ Vdbe *p = (Vdbe*)pStmt; - memset(p->anExec, 0, p->nOp * sizeof(i64)); + int ii; + for(ii=0; p!=0 && ii<p->nOp; ii++){ + Op *pOp = &p->aOp[ii]; + pOp->nExec = 0; + pOp->nCycle = 0; + } } #endif /* SQLITE_ENABLE_STMT_SCANSTATUS */ @@ -87532,8 +92689,12 @@ SQLITE_API int sqlite3_found_count = 0; ** sqlite3CantopenError(lineno) */ static void test_trace_breakpoint(int pc, Op *pOp, Vdbe *v){ - static int n = 0; + static u64 n = 0; + (void)pc; + (void)pOp; + (void)v; n++; + if( n==LARGEST_UINT64 ) abort(); /* So that n is used, preventing a warning */ } #endif @@ -87666,12 +92827,12 @@ static VdbeCursor *allocateCursor( int nByte; VdbeCursor *pCx = 0; nByte = - ROUND8(sizeof(VdbeCursor)) + 2*sizeof(u32)*nField + + ROUND8P(sizeof(VdbeCursor)) + 2*sizeof(u32)*nField + (eCurType==CURTYPE_BTREE?sqlite3BtreeCursorSize():0); assert( iCur>=0 && iCur<p->nCursor ); if( p->apCsr[iCur] ){ /*OPTIMIZATION-IF-FALSE*/ - sqlite3VdbeFreeCursor(p, p->apCsr[iCur]); + sqlite3VdbeFreeCursorNN(p, p->apCsr[iCur]); p->apCsr[iCur] = 0; } @@ -87701,7 +92862,7 @@ static VdbeCursor *allocateCursor( pCx->aOffset = &pCx->aType[nField]; if( eCurType==CURTYPE_BTREE ){ pCx->uc.pCursor = (BtCursor*) - &pMem->z[ROUND8(sizeof(VdbeCursor))+2*sizeof(u32)*nField]; + &pMem->z[ROUND8P(sizeof(VdbeCursor))+2*sizeof(u32)*nField]; sqlite3BtreeCursorZero(pCx->uc.pCursor); } return pCx; @@ -87714,7 +92875,8 @@ static VdbeCursor *allocateCursor( ** return false. */ static int alsoAnInt(Mem *pRec, double rValue, i64 *piValue){ - i64 iValue = (double)rValue; + i64 iValue; + iValue = sqlite3RealToI64(rValue); if( sqlite3RealSameAsInt(rValue,iValue) ){ *piValue = iValue; return 1; @@ -87770,6 +92932,10 @@ static void applyNumericAffinity(Mem *pRec, int bTryForInt){ ** always preferred, even if the affinity is REAL, because ** an integer representation is more space efficient on disk. ** +** SQLITE_AFF_FLEXNUM: +** If the value is text, then try to convert it into a number of +** some kind (integer or real) but do not make any other changes. +** ** SQLITE_AFF_TEXT: ** Convert pRec to a text representation. ** @@ -87784,11 +92950,11 @@ static void applyAffinity( ){ if( affinity>=SQLITE_AFF_NUMERIC ){ assert( affinity==SQLITE_AFF_INTEGER || affinity==SQLITE_AFF_REAL - || affinity==SQLITE_AFF_NUMERIC ); + || affinity==SQLITE_AFF_NUMERIC || affinity==SQLITE_AFF_FLEXNUM ); if( (pRec->flags & MEM_Int)==0 ){ /*OPTIMIZATION-IF-FALSE*/ - if( (pRec->flags & MEM_Real)==0 ){ + if( (pRec->flags & (MEM_Real|MEM_IntReal))==0 ){ if( pRec->flags & MEM_Str ) applyNumericAffinity(pRec,1); - }else{ + }else if( affinity<=SQLITE_AFF_REAL ){ sqlite3VdbeIntegerAffinity(pRec); } } @@ -87876,17 +93042,18 @@ static u16 SQLITE_NOINLINE computeNumericType(Mem *pMem){ ** But it does set pMem->u.r and pMem->u.i appropriately. */ static u16 numericType(Mem *pMem){ - if( pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal) ){ + assert( (pMem->flags & MEM_Null)==0 + || pMem->db==0 || pMem->db->mallocFailed ); + if( pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Null) ){ testcase( pMem->flags & MEM_Int ); testcase( pMem->flags & MEM_Real ); testcase( pMem->flags & MEM_IntReal ); - return pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal); - } - if( pMem->flags & (MEM_Str|MEM_Blob) ){ - testcase( pMem->flags & MEM_Str ); - testcase( pMem->flags & MEM_Blob ); - return computeNumericType(pMem); + return pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Null); } + assert( pMem->flags & (MEM_Str|MEM_Blob) ); + testcase( pMem->flags & MEM_Str ); + testcase( pMem->flags & MEM_Blob ); + return computeNumericType(pMem); return 0; } @@ -87947,6 +93114,9 @@ SQLITE_PRIVATE void sqlite3VdbeMemPrettyPrint(Mem *pMem, StrAccum *pStr){ sqlite3_str_appendchar(pStr, 1, (c>=0x20&&c<=0x7f) ? c : '.'); } sqlite3_str_appendf(pStr, "]%s", encnames[pMem->enc]); + if( f & MEM_Term ){ + sqlite3_str_appendf(pStr, "(0-term)"); + } } } #endif @@ -88015,17 +93185,6 @@ SQLITE_PRIVATE void sqlite3VdbeRegisterDump(Vdbe *v){ # define REGISTER_TRACE(R,M) #endif - -#ifdef VDBE_PROFILE - -/* -** hwtime.h contains inline assembler code for implementing -** high-performance timing routines. -*/ -/* #include "hwtime.h" */ - -#endif - #ifndef NDEBUG /* ** This function is only called from within an assert() expression. It @@ -88085,13 +93244,102 @@ static u64 filterHash(const Mem *aMem, const Op *pOp){ }else if( p->flags & MEM_Real ){ h += sqlite3VdbeIntValue(p); }else if( p->flags & (MEM_Str|MEM_Blob) ){ - h += p->n; - if( p->flags & MEM_Zero ) h += p->u.nZero; + /* All strings have the same hash and all blobs have the same hash, + ** though, at least, those hashes are different from each other and + ** from NULL. */ + h += 4093 + (p->flags & (MEM_Str|MEM_Blob)); } } return h; } + +/* +** For OP_Column, factor out the case where content is loaded from +** overflow pages, so that the code to implement this case is separate +** the common case where all content fits on the page. Factoring out +** the code reduces register pressure and helps the common case +** to run faster. +*/ +static SQLITE_NOINLINE int vdbeColumnFromOverflow( + VdbeCursor *pC, /* The BTree cursor from which we are reading */ + int iCol, /* The column to read */ + int t, /* The serial-type code for the column value */ + i64 iOffset, /* Offset to the start of the content value */ + u32 cacheStatus, /* Current Vdbe.cacheCtr value */ + u32 colCacheCtr, /* Current value of the column cache counter */ + Mem *pDest /* Store the value into this register. */ +){ + int rc; + sqlite3 *db = pDest->db; + int encoding = pDest->enc; + int len = sqlite3VdbeSerialTypeLen(t); + assert( pC->eCurType==CURTYPE_BTREE ); + if( len>db->aLimit[SQLITE_LIMIT_LENGTH] ) return SQLITE_TOOBIG; + if( len > 4000 && pC->pKeyInfo==0 ){ + /* Cache large column values that are on overflow pages using + ** an RCStr (reference counted string) so that if they are reloaded, + ** that do not have to be copied a second time. The overhead of + ** creating and managing the cache is such that this is only + ** profitable for larger TEXT and BLOB values. + ** + ** Only do this on table-btrees so that writes to index-btrees do not + ** need to clear the cache. This buys performance in the common case + ** in exchange for generality. + */ + VdbeTxtBlbCache *pCache; + char *pBuf; + if( pC->colCache==0 ){ + pC->pCache = sqlite3DbMallocZero(db, sizeof(VdbeTxtBlbCache) ); + if( pC->pCache==0 ) return SQLITE_NOMEM; + pC->colCache = 1; + } + pCache = pC->pCache; + if( pCache->pCValue==0 + || pCache->iCol!=iCol + || pCache->cacheStatus!=cacheStatus + || pCache->colCacheCtr!=colCacheCtr + || pCache->iOffset!=sqlite3BtreeOffset(pC->uc.pCursor) + ){ + if( pCache->pCValue ) sqlite3RCStrUnref(pCache->pCValue); + pBuf = pCache->pCValue = sqlite3RCStrNew( len+3 ); + if( pBuf==0 ) return SQLITE_NOMEM; + rc = sqlite3BtreePayload(pC->uc.pCursor, iOffset, len, pBuf); + if( rc ) return rc; + pBuf[len] = 0; + pBuf[len+1] = 0; + pBuf[len+2] = 0; + pCache->iCol = iCol; + pCache->cacheStatus = cacheStatus; + pCache->colCacheCtr = colCacheCtr; + pCache->iOffset = sqlite3BtreeOffset(pC->uc.pCursor); + }else{ + pBuf = pCache->pCValue; + } + assert( t>=12 ); + sqlite3RCStrRef(pBuf); + if( t&1 ){ + rc = sqlite3VdbeMemSetStr(pDest, pBuf, len, encoding, + sqlite3RCStrUnref); + pDest->flags |= MEM_Term; + }else{ + rc = sqlite3VdbeMemSetStr(pDest, pBuf, len, 0, + sqlite3RCStrUnref); + } + }else{ + rc = sqlite3VdbeMemFromBtree(pC->uc.pCursor, iOffset, len, pDest); + if( rc ) return rc; + sqlite3VdbeSerialGet((const u8*)pDest->z, t, pDest); + if( (t&1)!=0 && encoding==SQLITE_UTF8 ){ + pDest->z[len] = 0; + pDest->flags |= MEM_Term; + } + } + pDest->flags &= ~MEM_Ephem; + return rc; +} + + /* ** Return the symbolic name for the data type of a pMem */ @@ -88115,11 +93363,10 @@ SQLITE_PRIVATE int sqlite3VdbeExec( ){ Op *aOp = p->aOp; /* Copy of p->aOp */ Op *pOp = aOp; /* Current operation */ -#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE) - Op *pOrigOp; /* Value of pOp at the top of the loop */ -#endif #ifdef SQLITE_DEBUG + Op *pOrigOp; /* Value of pOp at the top of the loop */ int nExtraDelete = 0; /* Verifies FORDELETE and AUXDELETE flags */ + u8 iCompareIsInit = 0; /* iCompare is initialized */ #endif int rc = SQLITE_OK; /* Value to return */ sqlite3 *db = p->db; /* The database */ @@ -88135,13 +93382,17 @@ SQLITE_PRIVATE int sqlite3VdbeExec( Mem *pIn2 = 0; /* 2nd input operand */ Mem *pIn3 = 0; /* 3rd input operand */ Mem *pOut = 0; /* Output operand */ -#ifdef VDBE_PROFILE - u64 start; /* CPU clock count at start of opcode */ + u32 colCacheCtr = 0; /* Column cache counter */ +#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || defined(VDBE_PROFILE) + u64 *pnCycle = 0; + int bStmtScanStatus = IS_STMT_SCANSTATUS(db)!=0; #endif /*** INSERT STACK UNION HERE ***/ - assert( p->iVdbeMagic==VDBE_MAGIC_RUN ); /* sqlite3_step() verifies this */ - sqlite3VdbeEnter(p); + assert( p->eVdbeState==VDBE_RUN_STATE ); /* sqlite3_step() verifies this */ + if( DbMaskNonZero(p->lockMask) ){ + sqlite3VdbeEnter(p); + } #ifndef SQLITE_OMIT_PROGRESS_CALLBACK if( db->xProgress ){ u32 iPrior = p->aCounter[SQLITE_STMTSTATUS_VM_STEP]; @@ -88162,7 +93413,6 @@ SQLITE_PRIVATE int sqlite3VdbeExec( assert( p->bIsReader || p->readOnly!=0 ); p->iCurrentTime = 0; assert( p->explain==0 ); - p->pResultSet = 0; db->busyHandler.nBusy = 0; if( AtomicLoad(&db->u1.isInterrupted) ) goto abort_due_to_interrupt; sqlite3VdbeIOTraceSql(p); @@ -88199,12 +93449,18 @@ SQLITE_PRIVATE int sqlite3VdbeExec( assert( rc==SQLITE_OK ); assert( pOp>=aOp && pOp<&aOp[p->nOp]); -#ifdef VDBE_PROFILE - start = sqlite3NProfileCnt ? sqlite3NProfileCnt : sqlite3Hwtime(); -#endif nVmStep++; -#ifdef SQLITE_ENABLE_STMT_SCANSTATUS - if( p->anExec ) p->anExec[(int)(pOp-aOp)]++; + +#if defined(VDBE_PROFILE) + pOp->nExec++; + pnCycle = &pOp->nCycle; + if( sqlite3NProfileCnt==0 ) *pnCycle -= sqlite3Hwtime(); +#elif defined(SQLITE_ENABLE_STMT_SCANSTATUS) + if( bStmtScanStatus ){ + pOp->nExec++; + pnCycle = &pOp->nCycle; + *pnCycle -= sqlite3Hwtime(); + } #endif /* Only allow tracing if SQLITE_DEBUG is defined. @@ -88266,7 +93522,7 @@ SQLITE_PRIVATE int sqlite3VdbeExec( } } #endif -#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE) +#ifdef SQLITE_DEBUG pOrigOp = pOp; #endif @@ -88322,8 +93578,8 @@ SQLITE_PRIVATE int sqlite3VdbeExec( case OP_Goto: { /* jump */ #ifdef SQLITE_DEBUG - /* In debuggging mode, when the p5 flags is set on an OP_Goto, that - ** means we should really jump back to the preceeding OP_ReleaseReg + /* In debugging mode, when the p5 flags is set on an OP_Goto, that + ** means we should really jump back to the preceding OP_ReleaseReg ** instruction. */ if( pOp->p5 ){ assert( pOp->p2 < (int)(pOp - aOp) ); @@ -88383,26 +93639,39 @@ case OP_Gosub: { /* jump */ pIn1->flags = MEM_Int; pIn1->u.i = (int)(pOp-aOp); REGISTER_TRACE(pOp->p1, pIn1); - - /* Most jump operations do a goto to this spot in order to update - ** the pOp pointer. */ -jump_to_p2: - assert( pOp->p2>0 ); /* There are never any jumps to instruction 0 */ - assert( pOp->p2<p->nOp ); /* Jumps must be in range */ - pOp = &aOp[pOp->p2 - 1]; - break; + goto jump_to_p2_and_check_for_interrupt; } -/* Opcode: Return P1 * * * * +/* Opcode: Return P1 P2 P3 * * ** -** Jump to the next instruction after the address in register P1. After -** the jump, register P1 becomes undefined. +** Jump to the address stored in register P1. If P1 is a return address +** register, then this accomplishes a return from a subroutine. +** +** If P3 is 1, then the jump is only taken if register P1 holds an integer +** values, otherwise execution falls through to the next opcode, and the +** OP_Return becomes a no-op. If P3 is 0, then register P1 must hold an +** integer or else an assert() is raised. P3 should be set to 1 when +** this opcode is used in combination with OP_BeginSubrtn, and set to 0 +** otherwise. +** +** The value in register P1 is unchanged by this opcode. +** +** P2 is not used by the byte-code engine. However, if P2 is positive +** and also less than the current address, then the "EXPLAIN" output +** formatter in the CLI will indent all opcodes from the P2 opcode up +** to be not including the current Return. P2 should be the first opcode +** in the subroutine from which this opcode is returning. Thus the P2 +** value is a byte-code indentation hint. See tag-20220407a in +** wherecode.c and shell.c. */ case OP_Return: { /* in1 */ pIn1 = &aMem[pOp->p1]; - assert( pIn1->flags==MEM_Int ); - pOp = &aOp[pIn1->u.i]; - pIn1->flags = MEM_Undefined; + if( pIn1->flags & MEM_Int ){ + if( pOp->p3 ){ VdbeBranchTaken(1, 2); } + pOp = &aOp[pIn1->u.i]; + }else if( ALWAYS(pOp->p3) ){ + VdbeBranchTaken(0, 2); + } break; } @@ -88425,7 +93694,14 @@ case OP_InitCoroutine: { /* jump */ assert( !VdbeMemDynamic(pOut) ); pOut->u.i = pOp->p3 - 1; pOut->flags = MEM_Int; - if( pOp->p2 ) goto jump_to_p2; + if( pOp->p2==0 ) break; + + /* Most jump operations do a goto to this spot in order to update + ** the pOp pointer. */ +jump_to_p2: + assert( pOp->p2>0 ); /* There are never any jumps to instruction 0 */ + assert( pOp->p2<p->nOp ); /* Jumps must be in range */ + pOp = &aOp[pOp->p2 - 1]; break; } @@ -88511,7 +93787,7 @@ case OP_HaltIfNull: { /* in3 */ ** P5 is a value between 0 and 4, inclusive, that modifies the P4 string. ** ** 0: (no change) -** 1: NOT NULL contraint failed: P4 +** 1: NOT NULL constraint failed: P4 ** 2: UNIQUE constraint failed: P4 ** 3: CHECK constraint failed: P4 ** 4: FOREIGN KEY constraint failed: P4 @@ -88527,11 +93803,16 @@ case OP_Halt: { VdbeFrame *pFrame; int pcx; - pcx = (int)(pOp - aOp); #ifdef SQLITE_DEBUG if( pOp->p2==OE_Abort ){ sqlite3VdbeAssertAbortable(p); } #endif - if( pOp->p1==SQLITE_OK && p->pFrame ){ + + /* A deliberately coded "OP_Halt SQLITE_INTERNAL * * * *" opcode indicates + ** something is wrong with the code generator. Raise an assertion in order + ** to bring this to the attention of fuzzers and other testing tools. */ + assert( pOp->p1!=SQLITE_INTERNAL ); + + if( p->pFrame && pOp->p1==SQLITE_OK ){ /* Halt the sub-program. Return control to the parent frame. */ pFrame = p->pFrame; p->pFrame = pFrame->pParent; @@ -88553,7 +93834,6 @@ case OP_Halt: { } p->rc = pOp->p1; p->errorAction = (u8)pOp->p2; - p->pc = pcx; assert( pOp->p5<=4 ); if( p->rc ){ if( pOp->p5 ){ @@ -88570,6 +93850,7 @@ case OP_Halt: { }else{ sqlite3VdbeError(p, "%s", pOp->p4.z); } + pcx = (int)(pOp - aOp); sqlite3_log(pOp->p1, "abort at %d in [%s]: %s", pcx, p->zSql, p->zErrMsg); } rc = sqlite3VdbeHalt(p); @@ -88695,6 +93976,28 @@ case OP_String: { /* out2 */ break; } +/* Opcode: BeginSubrtn * P2 * * * +** Synopsis: r[P2]=NULL +** +** Mark the beginning of a subroutine that can be entered in-line +** or that can be called using OP_Gosub. The subroutine should +** be terminated by an OP_Return instruction that has a P1 operand that +** is the same as the P2 operand to this opcode and that has P3 set to 1. +** If the subroutine is entered in-line, then the OP_Return will simply +** fall through. But if the subroutine is entered using OP_Gosub, then +** the OP_Return will jump back to the first instruction after the OP_Gosub. +** +** This routine works by loading a NULL into the P2 register. When the +** return address register contains a NULL, the OP_Return instruction is +** a no-op that simply falls through to the next instruction (assuming that +** the OP_Return opcode has a P3 value of 1). Thus if the subroutine is +** entered in-line, then the OP_Return will cause in-line execution to +** continue. But if the subroutine is entered via OP_Gosub, then the +** OP_Return will cause a return to the address following the OP_Gosub. +** +** This opcode is identical to OP_Null. It has a different name +** only to make the byte code easier to read and verify. +*/ /* Opcode: Null P1 P2 P3 * * ** Synopsis: r[P2..P3]=NULL ** @@ -88707,6 +94010,7 @@ case OP_String: { /* out2 */ ** NULL values will not compare equal even if SQLITE_NULLEQ is set on ** OP_Ne or OP_Eq. */ +case OP_BeginSubrtn: case OP_Null: { /* out2 */ int cnt; u16 nullFlag; @@ -88837,11 +94141,16 @@ case OP_Move: { break; } -/* Opcode: Copy P1 P2 P3 * * +/* Opcode: Copy P1 P2 P3 * P5 ** Synopsis: r[P2@P3+1]=r[P1@P3+1] ** ** Make a copy of registers P1..P1+P3 into registers P2..P2+P3. ** +** If the 0x0002 bit of P5 is set then also clear the MEM_Subtype flag in the +** destination. The 0x0001 bit of P5 indicates that this Copy opcode cannot +** be merged. The 0x0001 bit is used by the query planner and does not +** come into play during query execution. +** ** This instruction makes a deep copy of the value. A duplicate ** is made of any string or blob constant. See also OP_SCopy. */ @@ -88856,6 +94165,9 @@ case OP_Copy: { memAboutToChange(p, pOut); sqlite3VdbeMemShallowCopy(pOut, pIn1, MEM_Ephem); Deephemeralize(pOut); + if( (pOut->flags & MEM_Subtype)!=0 && (pOp->p5 & 0x0002)!=0 ){ + pOut->flags &= ~MEM_Subtype; + } #ifdef SQLITE_DEBUG pOut->pScopyFrom = 0; #endif @@ -88936,45 +94248,32 @@ case OP_FkCheck: { ** the result row. */ case OP_ResultRow: { - Mem *pMem; - int i; assert( p->nResColumn==pOp->p2 ); assert( pOp->p1>0 || CORRUPT_DB ); assert( pOp->p1+pOp->p2<=(p->nMem+1 - p->nCursor)+1 ); - /* Invalidate all ephemeral cursor row caches */ p->cacheCtr = (p->cacheCtr + 2)|1; - - /* Make sure the results of the current row are \000 terminated - ** and have an assigned type. The results are de-ephemeralized as - ** a side effect. - */ - pMem = p->pResultSet = &aMem[pOp->p1]; - for(i=0; i<pOp->p2; i++){ - assert( memIsValid(&pMem[i]) ); - Deephemeralize(&pMem[i]); - assert( (pMem[i].flags & MEM_Ephem)==0 - || (pMem[i].flags & (MEM_Str|MEM_Blob))==0 ); - sqlite3VdbeMemNulTerminate(&pMem[i]); - REGISTER_TRACE(pOp->p1+i, &pMem[i]); + p->pResultRow = &aMem[pOp->p1]; #ifdef SQLITE_DEBUG - /* The registers in the result will not be used again when the - ** prepared statement restarts. This is because sqlite3_column() - ** APIs might have caused type conversions of made other changes to - ** the register values. Therefore, we can go ahead and break any - ** OP_SCopy dependencies. */ - pMem[i].pScopyFrom = 0; -#endif + { + Mem *pMem = p->pResultRow; + int i; + for(i=0; i<pOp->p2; i++){ + assert( memIsValid(&pMem[i]) ); + REGISTER_TRACE(pOp->p1+i, &pMem[i]); + /* The registers in the result will not be used again when the + ** prepared statement restarts. This is because sqlite3_column() + ** APIs might have caused type conversions of made other changes to + ** the register values. Therefore, we can go ahead and break any + ** OP_SCopy dependencies. */ + pMem[i].pScopyFrom = 0; + } } +#endif if( db->mallocFailed ) goto no_mem; - if( db->mTrace & SQLITE_TRACE_ROW ){ db->trace.xV2(SQLITE_TRACE_ROW, db->pTraceArg, p, 0); } - - - /* Return SQLITE_ROW - */ p->pc = (int)(pOp - aOp) + 1; rc = SQLITE_ROW; goto vdbe_return; @@ -89029,7 +94328,7 @@ case OP_Concat: { /* same as TK_CONCAT, in1, in2, out3 */ if( nByte>db->aLimit[SQLITE_LIMIT_LENGTH] ){ goto too_big; } - if( sqlite3VdbeMemGrow(pOut, (int)nByte+3, pOut==pIn2) ){ + if( sqlite3VdbeMemGrow(pOut, (int)nByte+2, pOut==pIn2) ){ goto no_mem; } MemSetTypeFlag(pOut, MEM_Str); @@ -89041,9 +94340,9 @@ case OP_Concat: { /* same as TK_CONCAT, in1, in2, out3 */ memcpy(&pOut->z[pIn2->n], pIn1->z, pIn1->n); assert( (pIn1->flags & MEM_Dyn) == (flags1 & MEM_Dyn) ); pIn1->flags = flags1; + if( encoding>SQLITE_UTF8 ) nByte &= ~1; pOut->z[nByte]=0; pOut->z[nByte+1] = 0; - pOut->z[nByte+2] = 0; pOut->flags |= MEM_Term; pOut->n = (int)nByte; pOut->enc = encoding; @@ -89094,7 +94393,6 @@ case OP_Subtract: /* same as TK_MINUS, in1, in2, out3 */ case OP_Multiply: /* same as TK_STAR, in1, in2, out3 */ case OP_Divide: /* same as TK_SLASH, in1, in2, out3 */ case OP_Remainder: { /* same as TK_REM, in1, in2, out3 */ - u16 flags; /* Combined MEM_* flags from both inputs */ u16 type1; /* Numeric type of left operand */ u16 type2; /* Numeric type of right operand */ i64 iA; /* Integer value of left operand */ @@ -89103,12 +94401,12 @@ case OP_Remainder: { /* same as TK_REM, in1, in2, out3 */ double rB; /* Real value of right operand */ pIn1 = &aMem[pOp->p1]; - type1 = numericType(pIn1); + type1 = pIn1->flags; pIn2 = &aMem[pOp->p2]; - type2 = numericType(pIn2); + type2 = pIn2->flags; pOut = &aMem[pOp->p3]; - flags = pIn1->flags | pIn2->flags; if( (type1 & type2 & MEM_Int)!=0 ){ +int_math: iA = pIn1->u.i; iB = pIn2->u.i; switch( pOp->opcode ){ @@ -89130,9 +94428,12 @@ case OP_Remainder: { /* same as TK_REM, in1, in2, out3 */ } pOut->u.i = iB; MemSetTypeFlag(pOut, MEM_Int); - }else if( (flags & MEM_Null)!=0 ){ + }else if( ((type1 | type2) & MEM_Null)!=0 ){ goto arithmetic_result_is_null; }else{ + type1 = numericType(pIn1); + type2 = numericType(pIn2); + if( (type1 & type2 & MEM_Int)!=0 ) goto int_math; fp_math: rA = sqlite3VdbeRealValue(pIn1); rB = sqlite3VdbeRealValue(pIn2); @@ -89290,7 +94591,7 @@ case OP_AddImm: { /* in1 */ pIn1 = &aMem[pOp->p1]; memAboutToChange(p, pIn1); sqlite3VdbeMemIntegerify(pIn1); - pIn1->u.i += pOp->p2; + *(u64*)&pIn1->u.i += (u64)pOp->p2; break; } @@ -89485,26 +94786,28 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */ flags1 = pIn1->flags; flags3 = pIn3->flags; if( (flags1 & flags3 & MEM_Int)!=0 ){ - assert( (pOp->p5 & SQLITE_AFF_MASK)!=SQLITE_AFF_TEXT || CORRUPT_DB ); /* Common case of comparison of two integers */ if( pIn3->u.i > pIn1->u.i ){ - iCompare = +1; if( sqlite3aGTb[pOp->opcode] ){ VdbeBranchTaken(1, (pOp->p5 & SQLITE_NULLEQ)?2:3); goto jump_to_p2; } + iCompare = +1; + VVA_ONLY( iCompareIsInit = 1; ) }else if( pIn3->u.i < pIn1->u.i ){ - iCompare = -1; if( sqlite3aLTb[pOp->opcode] ){ VdbeBranchTaken(1, (pOp->p5 & SQLITE_NULLEQ)?2:3); goto jump_to_p2; } + iCompare = -1; + VVA_ONLY( iCompareIsInit = 1; ) }else{ - iCompare = 0; if( sqlite3aEQb[pOp->opcode] ){ VdbeBranchTaken(1, (pOp->p5 & SQLITE_NULLEQ)?2:3); goto jump_to_p2; } + iCompare = 0; + VVA_ONLY( iCompareIsInit = 1; ) } VdbeBranchTaken(0, (pOp->p5 & SQLITE_NULLEQ)?2:3); break; @@ -89531,11 +94834,12 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */ ** then the result is always NULL. ** The jump is taken if the SQLITE_JUMPIFNULL bit is set. */ - iCompare = 1; /* Operands are not equal */ VdbeBranchTaken(2,3); if( pOp->p5 & SQLITE_JUMPIFNULL ){ goto jump_to_p2; } + iCompare = 1; /* Operands are not equal */ + VVA_ONLY( iCompareIsInit = 1; ) break; } }else{ @@ -89546,14 +94850,14 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */ if( (flags1 | flags3)&MEM_Str ){ if( (flags1 & (MEM_Int|MEM_IntReal|MEM_Real|MEM_Str))==MEM_Str ){ applyNumericAffinity(pIn1,0); - testcase( flags3==pIn3->flags ); + assert( flags3==pIn3->flags || CORRUPT_DB ); flags3 = pIn3->flags; } if( (flags3 & (MEM_Int|MEM_IntReal|MEM_Real|MEM_Str))==MEM_Str ){ applyNumericAffinity(pIn3,0); } } - }else if( affinity==SQLITE_AFF_TEXT ){ + }else if( affinity==SQLITE_AFF_TEXT && ((flags1 | flags3) & MEM_Str)!=0 ){ if( (flags1 & MEM_Str)==0 && (flags1&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){ testcase( pIn1->flags & MEM_Int ); testcase( pIn1->flags & MEM_Real ); @@ -89561,7 +94865,7 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */ sqlite3VdbeMemStringify(pIn1, encoding, 1); testcase( (flags1&MEM_Dyn) != (pIn1->flags&MEM_Dyn) ); flags1 = (pIn1->flags & ~MEM_TypeMask) | (flags1 & MEM_TypeMask); - if( pIn1==pIn3 ) flags3 = flags1 | MEM_Str; + if( NEVER(pIn1==pIn3) ) flags3 = flags1 | MEM_Str; } if( (flags3 & MEM_Str)==0 && (flags3&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){ testcase( pIn3->flags & MEM_Int ); @@ -89592,6 +94896,7 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */ res2 = sqlite3aGTb[pOp->opcode]; } iCompare = res; + VVA_ONLY( iCompareIsInit = 1; ) /* Undo any changes made by applyAffinity() to the input registers. */ assert( (pIn3->flags & MEM_Dyn) == (flags3 & MEM_Dyn) ); @@ -89613,10 +94918,10 @@ case OP_Ge: { /* same as TK_GE, jump, in1, in3 */ ** opcodes are allowed to occur between this instruction and the previous ** OP_Lt or OP_Gt. ** -** If result of an OP_Eq comparison on the same two operands as the -** prior OP_Lt or OP_Gt would have been true, then jump to P2. -** If the result of an OP_Eq comparison on the two previous -** operands would have been false or NULL, then fall through. +** If the result of an OP_Eq comparison on the same two operands as +** the prior OP_Lt or OP_Gt would have been true, then jump to P2. If +** the result of an OP_Eq comparison on the two previous operands +** would have been false or NULL, then fall through. */ case OP_ElseEq: { /* same as TK_ESCAPE, jump */ @@ -89630,6 +94935,7 @@ case OP_ElseEq: { /* same as TK_ESCAPE, jump */ break; } #endif /* SQLITE_DEBUG */ + assert( iCompareIsInit ); VdbeBranchTaken(iCompare==0, 2); if( iCompare==0 ) goto jump_to_p2; break; @@ -89641,9 +94947,8 @@ case OP_ElseEq: { /* same as TK_ESCAPE, jump */ ** Set the permutation used by the OP_Compare operator in the next ** instruction. The permutation is stored in the P4 operand. ** -** The permutation is only valid until the next OP_Compare that has -** the OPFLAG_PERMUTE bit set in P5. Typically the OP_Permutation should -** occur immediately prior to the OP_Compare. +** The permutation is only valid for the next opcode which must be +** an OP_Compare that has the OPFLAG_PERMUTE bit set in P5. ** ** The first integer in the P4 integer array is the length of the array ** and does not become part of the permutation. @@ -89675,6 +94980,8 @@ case OP_Permutation: { ** The comparison is a sort comparison, so NULLs compare equal, ** NULLs are less than numbers, numbers are less than strings, ** and strings are less than blobs. +** +** This opcode must be immediately followed by an OP_Jump opcode. */ case OP_Compare: { int n; @@ -89723,6 +95030,7 @@ case OP_Compare: { pColl = pKeyInfo->aColl[i]; bRev = (pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_DESC); iCompare = sqlite3MemCompare(&aMem[p1+idx], &aMem[p2+idx], pColl); + VVA_ONLY( iCompareIsInit = 1; ) if( iCompare ){ if( (pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_BIGNULL) && ((aMem[p1+idx].flags & MEM_Null) || (aMem[p2+idx].flags & MEM_Null)) @@ -89733,16 +95041,21 @@ case OP_Compare: { break; } } + assert( pOp[1].opcode==OP_Jump ); break; } /* Opcode: Jump P1 P2 P3 * * ** ** Jump to the instruction at address P1, P2, or P3 depending on whether -** in the most recent OP_Compare instruction the P1 vector was less than +** in the most recent OP_Compare instruction the P1 vector was less than, ** equal to, or greater than the P2 vector, respectively. +** +** This opcode must immediately follow an OP_Compare opcode. */ case OP_Jump: { /* jump */ + assert( pOp>aOp && pOp[-1].opcode==OP_Compare ); + assert( iCompareIsInit ); if( iCompare<0 ){ VdbeBranchTaken(0,4); pOp = &aOp[pOp->p1 - 1]; }else if( iCompare==0 ){ @@ -89942,26 +95255,103 @@ case OP_IsNull: { /* same as TK_ISNULL, jump, in1 */ break; } -/* Opcode: IsNullOrType P1 P2 P3 * * -** Synopsis: if typeof(r[P1]) IN (P3,5) goto P2 +/* Opcode: IsType P1 P2 P3 P4 P5 +** Synopsis: if typeof(P1.P3) in P5 goto P2 +** +** Jump to P2 if the type of a column in a btree is one of the types specified +** by the P5 bitmask. +** +** P1 is normally a cursor on a btree for which the row decode cache is +** valid through at least column P3. In other words, there should have been +** a prior OP_Column for column P3 or greater. If the cursor is not valid, +** then this opcode might give spurious results. +** The the btree row has fewer than P3 columns, then use P4 as the +** datatype. +** +** If P1 is -1, then P3 is a register number and the datatype is taken +** from the value in that register. +** +** P5 is a bitmask of data types. SQLITE_INTEGER is the least significant +** (0x01) bit. SQLITE_FLOAT is the 0x02 bit. SQLITE_TEXT is 0x04. +** SQLITE_BLOB is 0x08. SQLITE_NULL is 0x10. +** +** WARNING: This opcode does not reliably distinguish between NULL and REAL +** when P1>=0. If the database contains a NaN value, this opcode will think +** that the datatype is REAL when it should be NULL. When P1<0 and the value +** is already stored in register P3, then this opcode does reliably +** distinguish between NULL and REAL. The problem only arises then P1>=0. +** +** Take the jump to address P2 if and only if the datatype of the +** value determined by P1 and P3 corresponds to one of the bits in the +** P5 bitmask. ** -** Jump to P2 if the value in register P1 is NULL or has a datatype P3. -** P3 is an integer which should be one of SQLITE_INTEGER, SQLITE_FLOAT, -** SQLITE_BLOB, SQLITE_NULL, or SQLITE_TEXT. */ -case OP_IsNullOrType: { /* jump, in1 */ - int doTheJump; - pIn1 = &aMem[pOp->p1]; - doTheJump = (pIn1->flags & MEM_Null)!=0 || sqlite3_value_type(pIn1)==pOp->p3; - VdbeBranchTaken( doTheJump, 2); - if( doTheJump ) goto jump_to_p2; +case OP_IsType: { /* jump */ + VdbeCursor *pC; + u16 typeMask; + u32 serialType; + + assert( pOp->p1>=(-1) && pOp->p1<p->nCursor ); + assert( pOp->p1>=0 || (pOp->p3>=0 && pOp->p3<=(p->nMem+1 - p->nCursor)) ); + if( pOp->p1>=0 ){ + pC = p->apCsr[pOp->p1]; + assert( pC!=0 ); + assert( pOp->p3>=0 ); + if( pOp->p3<pC->nHdrParsed ){ + serialType = pC->aType[pOp->p3]; + if( serialType>=12 ){ + if( serialType&1 ){ + typeMask = 0x04; /* SQLITE_TEXT */ + }else{ + typeMask = 0x08; /* SQLITE_BLOB */ + } + }else{ + static const unsigned char aMask[] = { + 0x10, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x2, + 0x01, 0x01, 0x10, 0x10 + }; + testcase( serialType==0 ); + testcase( serialType==1 ); + testcase( serialType==2 ); + testcase( serialType==3 ); + testcase( serialType==4 ); + testcase( serialType==5 ); + testcase( serialType==6 ); + testcase( serialType==7 ); + testcase( serialType==8 ); + testcase( serialType==9 ); + testcase( serialType==10 ); + testcase( serialType==11 ); + typeMask = aMask[serialType]; + } + }else{ + typeMask = 1 << (pOp->p4.i - 1); + testcase( typeMask==0x01 ); + testcase( typeMask==0x02 ); + testcase( typeMask==0x04 ); + testcase( typeMask==0x08 ); + testcase( typeMask==0x10 ); + } + }else{ + assert( memIsValid(&aMem[pOp->p3]) ); + typeMask = 1 << (sqlite3_value_type((sqlite3_value*)&aMem[pOp->p3])-1); + testcase( typeMask==0x01 ); + testcase( typeMask==0x02 ); + testcase( typeMask==0x04 ); + testcase( typeMask==0x08 ); + testcase( typeMask==0x10 ); + } + VdbeBranchTaken( (typeMask & pOp->p5)!=0, 2); + if( typeMask & pOp->p5 ){ + goto jump_to_p2; + } break; } /* Opcode: ZeroOrNull P1 P2 P3 * * ** Synopsis: r[P2] = 0 OR NULL ** -** If all both registers P1 and P3 are NOT NULL, then store a zero in +** If both registers P1 and P3 are NOT NULL, then store a zero in ** register P2. If either registers P1 or P3 are NULL then put ** a NULL in register P2. */ @@ -89997,11 +95387,14 @@ case OP_NotNull: { /* same as TK_NOTNULL, jump, in1 */ ** If it is, then set register P3 to NULL and jump immediately to P2. ** If P1 is not on a NULL row, then fall through without making any ** changes. +** +** If P1 is not an open cursor, then this opcode is a no-op. */ case OP_IfNullRow: { /* jump */ + VdbeCursor *pC; assert( pOp->p1>=0 && pOp->p1<p->nCursor ); - assert( p->apCsr[pOp->p1]!=0 ); - if( p->apCsr[pOp->p1]->nullRow ){ + pC = p->apCsr[pOp->p1]; + if( pC && pC->nullRow ){ sqlite3VdbeMemSetNull(aMem + pOp->p3); goto jump_to_p2; } @@ -90047,12 +95440,12 @@ case OP_Offset: { /* out3 */ #endif /* SQLITE_ENABLE_OFFSET_SQL_FUNC */ /* Opcode: Column P1 P2 P3 P4 P5 -** Synopsis: r[P3]=PX +** Synopsis: r[P3]=PX cursor P1 column P2 ** ** Interpret the data that cursor P1 points to as a structure built using ** the MakeRecord instruction. (See the MakeRecord opcode for additional ** information about the format of the data.) Extract the P2-th column -** from this record. If there are less that (P2+1) +** from this record. If there are less than (P2+1) ** values in the record, extract a NULL. ** ** The value extracted is stored in register P3. @@ -90061,15 +95454,17 @@ case OP_Offset: { /* out3 */ ** if the P4 argument is a P4_MEM use the value of the P4 argument as ** the result. ** -** If the OPFLAG_LENGTHARG and OPFLAG_TYPEOFARG bits are set on P5 then -** the result is guaranteed to only be used as the argument of a length() -** or typeof() function, respectively. The loading of large blobs can be -** skipped for length() and all content loading can be skipped for typeof(). +** If the OPFLAG_LENGTHARG bit is set in P5 then the result is guaranteed +** to only be used by the length() function or the equivalent. The content +** of large blobs is not loaded, thus saving CPU cycles. If the +** OPFLAG_TYPEOFARG bit is set then the result will only be used by the +** typeof() function or the IS NULL or IS NOT NULL operators or the +** equivalent. In this case, all content loading can be omitted. */ -case OP_Column: { +case OP_Column: { /* ncycle */ u32 p2; /* column number to retrieve */ VdbeCursor *pC; /* The VDBE cursor */ - BtCursor *pCrsr; /* The BTree cursor */ + BtCursor *pCrsr; /* The B-Tree cursor corresponding to pC */ u32 *aOffset; /* aOffset[i] is offset to start of data for i-th column */ int len; /* The length of the serialized data for the column */ int i; /* Loop counter */ @@ -90083,21 +95478,14 @@ case OP_Column: { Mem *pReg; /* PseudoTable input register */ assert( pOp->p1>=0 && pOp->p1<p->nCursor ); + assert( pOp->p3>0 && pOp->p3<=(p->nMem+1 - p->nCursor) ); pC = p->apCsr[pOp->p1]; - assert( pC!=0 ); p2 = (u32)pOp->p2; - /* If the cursor cache is stale (meaning it is not currently point at - ** the correct row) then bring it up-to-date by doing the necessary - ** B-Tree seek. */ - rc = sqlite3VdbeCursorMoveto(&pC, &p2); - if( rc ) goto abort_due_to_error; - - assert( pOp->p3>0 && pOp->p3<=(p->nMem+1 - p->nCursor) ); - pDest = &aMem[pOp->p3]; - memAboutToChange(p, pDest); +op_column_restart: assert( pC!=0 ); - assert( p2<(u32)pC->nField ); + assert( p2<(u32)pC->nField + || (pC->eCurType==CURTYPE_PSEUDO && pC->seekResult==0) ); aOffset = pC->aOffset; assert( aOffset==pC->aType+pC->nField ); assert( pC->eCurType!=CURTYPE_VTAB ); @@ -90106,21 +95494,37 @@ case OP_Column: { if( pC->cacheStatus!=p->cacheCtr ){ /*OPTIMIZATION-IF-FALSE*/ if( pC->nullRow ){ - if( pC->eCurType==CURTYPE_PSEUDO ){ + if( pC->eCurType==CURTYPE_PSEUDO && pC->seekResult>0 ){ /* For the special case of as pseudo-cursor, the seekResult field ** identifies the register that holds the record */ - assert( pC->seekResult>0 ); pReg = &aMem[pC->seekResult]; assert( pReg->flags & MEM_Blob ); assert( memIsValid(pReg) ); pC->payloadSize = pC->szRow = pReg->n; pC->aRow = (u8*)pReg->z; }else{ + pDest = &aMem[pOp->p3]; + memAboutToChange(p, pDest); sqlite3VdbeMemSetNull(pDest); goto op_column_out; } }else{ pCrsr = pC->uc.pCursor; + if( pC->deferredMoveto ){ + u32 iMap; + assert( !pC->isEphemeral ); + if( pC->ub.aAltMap && (iMap = pC->ub.aAltMap[1+p2])>0 ){ + pC = pC->pAltCursor; + p2 = iMap - 1; + goto op_column_restart; + } + rc = sqlite3VdbeFinishMoveto(pC); + if( rc ) goto abort_due_to_error; + }else if( sqlite3BtreeCursorHasMoved(pCrsr) ){ + rc = sqlite3VdbeHandleMovedCursor(pC); + if( rc ) goto abort_due_to_error; + goto op_column_restart; + } assert( pC->eCurType==CURTYPE_BTREE ); assert( pCrsr ); assert( sqlite3BtreeCursorIsValid(pCrsr) ); @@ -90128,15 +95532,15 @@ case OP_Column: { pC->aRow = sqlite3BtreePayloadFetch(pCrsr, &pC->szRow); assert( pC->szRow<=pC->payloadSize ); assert( pC->szRow<=65536 ); /* Maximum page size is 64KiB */ - if( pC->payloadSize > (u32)db->aLimit[SQLITE_LIMIT_LENGTH] ){ - goto too_big; - } } pC->cacheStatus = p->cacheCtr; - pC->iHdrOffset = getVarint32(pC->aRow, aOffset[0]); + if( (aOffset[0] = pC->aRow[0])<0x80 ){ + pC->iHdrOffset = 1; + }else{ + pC->iHdrOffset = sqlite3GetVarint32(pC->aRow, aOffset); + } pC->nHdrParsed = 0; - if( pC->szRow<aOffset[0] ){ /*OPTIMIZATION-IF-FALSE*/ /* pC->aRow does not have to hold the entire row, but it does at least ** need to cover the header of the record. If pC->aRow does not contain @@ -90176,6 +95580,10 @@ case OP_Column: { testcase( aOffset[0]==0 ); goto op_column_read_header; } + }else if( sqlite3BtreeCursorHasMoved(pC->uc.pCursor) ){ + rc = sqlite3VdbeHandleMovedCursor(pC); + if( rc ) goto abort_due_to_error; + goto op_column_restart; } /* Make sure at least the first p2+1 entries of the header have been @@ -90244,6 +95652,8 @@ case OP_Column: { ** columns. So the result will be either the default value or a NULL. */ if( pC->nHdrParsed<=p2 ){ + pDest = &aMem[pOp->p3]; + memAboutToChange(p, pDest); if( pOp->p4type==P4_MEM ){ sqlite3VdbeMemShallowCopy(pDest, pOp->p4.pMem, MEM_Static); }else{ @@ -90261,6 +95671,8 @@ case OP_Column: { */ assert( p2<pC->nHdrParsed ); assert( rc==SQLITE_OK ); + pDest = &aMem[pOp->p3]; + memAboutToChange(p, pDest); assert( sqlite3VdbeCheckMemInvariants(pDest) ); if( VdbeMemDynamic(pDest) ){ sqlite3VdbeMemSetNull(pDest); @@ -90281,6 +95693,7 @@ case OP_Column: { pDest->n = len = (t-12)/2; pDest->enc = encoding; if( pDest->szMalloc < len+2 ){ + if( len>db->aLimit[SQLITE_LIMIT_LENGTH] ) goto too_big; pDest->flags = MEM_Null; if( sqlite3VdbeMemGrow(pDest, len+2, 0) ) goto no_mem; }else{ @@ -90292,11 +95705,16 @@ case OP_Column: { pDest->flags = aFlag[t&1]; } }else{ + u8 p5; pDest->enc = encoding; + assert( pDest->db==db ); /* This branch happens only when content is on overflow pages */ - if( ((pOp->p5 & (OPFLAG_LENGTHARG|OPFLAG_TYPEOFARG))!=0 - && ((t>=12 && (t&1)==0) || (pOp->p5 & OPFLAG_TYPEOFARG)!=0)) - || (len = sqlite3VdbeSerialTypeLen(t))==0 + if( ((p5 = (pOp->p5 & OPFLAG_BYTELENARG))!=0 + && (p5==OPFLAG_TYPEOFARG + || (t>=12 && ((t&1)==0 || p5==OPFLAG_BYTELENARG)) + ) + ) + || sqlite3VdbeSerialTypeLen(t)==0 ){ /* Content is irrelevant for ** 1. the typeof() function, @@ -90313,10 +95731,13 @@ case OP_Column: { */ sqlite3VdbeSerialGet((u8*)sqlite3CtypeMap, t, pDest); }else{ - rc = sqlite3VdbeMemFromBtree(pC->uc.pCursor, aOffset[p2], len, pDest); - if( rc!=SQLITE_OK ) goto abort_due_to_error; - sqlite3VdbeSerialGet((const u8*)pDest->z, t, pDest); - pDest->flags &= ~MEM_Ephem; + rc = vdbeColumnFromOverflow(pC, p2, t, aOffset[p2], + p->cacheCtr, colCacheCtr, pDest); + if( rc ){ + if( rc==SQLITE_NOMEM ) goto no_mem; + if( rc==SQLITE_TOOBIG ) goto too_big; + goto abort_due_to_error; + } } } @@ -90396,7 +95817,7 @@ case OP_TypeCheck: { } case COLTYPE_REAL: { testcase( (pIn1->flags & (MEM_Real|MEM_IntReal))==MEM_Real ); - testcase( (pIn1->flags & (MEM_Real|MEM_IntReal))==MEM_IntReal ); + assert( (pIn1->flags & MEM_IntReal)==0 ); if( pIn1->flags & MEM_Int ){ /* When applying REAL affinity, if the result is still an MEM_Int ** that will fit in 6 bytes, then change the type to MEM_IntReal @@ -90475,7 +95896,7 @@ case OP_Affinity: { }else{ pIn1->u.r = (double)pIn1->u.i; pIn1->flags |= MEM_Real; - pIn1->flags &= ~MEM_Int; + pIn1->flags &= ~(MEM_Int|MEM_Str); } } REGISTER_TRACE((int)(pIn1-aMem), pIn1); @@ -90525,7 +95946,6 @@ case OP_MakeRecord: { Mem *pLast; /* Last field of the record */ int nField; /* Number of fields in the record */ char *zAffinity; /* The affinity string for the record */ - int file_format; /* File format to use for encoding */ u32 len; /* Length of a field */ u8 *zHdr; /* Where to write next byte of the header */ u8 *zPayload; /* Where to write next byte of the payload */ @@ -90554,7 +95974,6 @@ case OP_MakeRecord: { pData0 = &aMem[nField]; nField = pOp->p2; pLast = &pData0[nField-1]; - file_format = p->minWriteFileFormat; /* Identify the output register */ assert( pOp->p3<pOp->p1 || pOp->p3>=pOp->p1+pOp->p2 ); @@ -90656,7 +96075,7 @@ case OP_MakeRecord: { testcase( uu==2147483647 ); testcase( uu==2147483648LL ); testcase( uu==140737488355327LL ); testcase( uu==140737488355328LL ); if( uu<=127 ){ - if( (i&1)==i && file_format>=4 ){ + if( (i&1)==i && p->minWriteFileFormat>=4 ){ pRec->uTemp = 8+(u32)uu; }else{ nData++; @@ -90761,18 +96180,64 @@ case OP_MakeRecord: { zPayload = zHdr + nHdr; /* Write the record */ - zHdr += putVarint32(zHdr, nHdr); + if( nHdr<0x80 ){ + *(zHdr++) = nHdr; + }else{ + zHdr += sqlite3PutVarint(zHdr,nHdr); + } assert( pData0<=pLast ); pRec = pData0; - do{ + while( 1 /*exit-by-break*/ ){ serial_type = pRec->uTemp; /* EVIDENCE-OF: R-06529-47362 Following the size varint are one or more - ** additional varints, one per column. */ - zHdr += putVarint32(zHdr, serial_type); /* serial type */ - /* EVIDENCE-OF: R-64536-51728 The values for each column in the record + ** additional varints, one per column. + ** EVIDENCE-OF: R-64536-51728 The values for each column in the record ** immediately follow the header. */ - zPayload += sqlite3VdbeSerialPut(zPayload, pRec, serial_type); /* content */ - }while( (++pRec)<=pLast ); + if( serial_type<=7 ){ + *(zHdr++) = serial_type; + if( serial_type==0 ){ + /* NULL value. No change in zPayload */ + }else{ + u64 v; + if( serial_type==7 ){ + assert( sizeof(v)==sizeof(pRec->u.r) ); + memcpy(&v, &pRec->u.r, sizeof(v)); + swapMixedEndianFloat(v); + }else{ + v = pRec->u.i; + } + len = sqlite3SmallTypeSizes[serial_type]; + assert( len>=1 && len<=8 && len!=5 && len!=7 ); + switch( len ){ + default: zPayload[7] = (u8)(v&0xff); v >>= 8; + zPayload[6] = (u8)(v&0xff); v >>= 8; + case 6: zPayload[5] = (u8)(v&0xff); v >>= 8; + zPayload[4] = (u8)(v&0xff); v >>= 8; + case 4: zPayload[3] = (u8)(v&0xff); v >>= 8; + case 3: zPayload[2] = (u8)(v&0xff); v >>= 8; + case 2: zPayload[1] = (u8)(v&0xff); v >>= 8; + case 1: zPayload[0] = (u8)(v&0xff); + } + zPayload += len; + } + }else if( serial_type<0x80 ){ + *(zHdr++) = serial_type; + if( serial_type>=14 && pRec->n>0 ){ + assert( pRec->z!=0 ); + memcpy(zPayload, pRec->z, pRec->n); + zPayload += pRec->n; + } + }else{ + zHdr += sqlite3PutVarint(zHdr, serial_type); + if( pRec->n ){ + assert( pRec->z!=0 ); + memcpy(zPayload, pRec->z, pRec->n); + zPayload += pRec->n; + } + } + if( pRec==pLast ) break; + pRec++; + } assert( nHdr==(int)(zHdr - (u8*)pOut->z) ); assert( nByte==(int)(zPayload - (u8*)pOut->z) ); @@ -90991,7 +96456,10 @@ case OP_Savepoint: { } } if( rc ) goto abort_due_to_error; - + if( p->eVdbeState==VDBE_HALT_STATE ){ + rc = SQLITE_DONE; + goto vdbe_return; + } break; } @@ -91095,6 +96563,7 @@ case OP_AutoCommit: { */ case OP_Transaction: { Btree *pBt; + Db *pDb; int iMeta = 0; assert( p->bIsReader ); @@ -91114,7 +96583,8 @@ case OP_Transaction: { } goto abort_due_to_error; } - pBt = db->aDb[pOp->p1].pBt; + pDb = &db->aDb[pOp->p1]; + pBt = pDb->pBt; if( pBt ){ rc = sqlite3BtreeBeginTrans(pBt, pOp->p2, &iMeta); @@ -91155,8 +96625,7 @@ case OP_Transaction: { assert( pOp->p5==0 || pOp->p4type==P4_INT32 ); if( rc==SQLITE_OK && pOp->p5 - && (iMeta!=pOp->p3 - || db->aDb[pOp->p1].pSchema->iGeneration!=pOp->p4.i) + && (iMeta!=pOp->p3 || pDb->pSchema->iGeneration!=pOp->p4.i) ){ /* ** IMPLEMENTATION-OF: R-03189-51135 As each SQL statement runs, the schema @@ -91183,6 +96652,11 @@ case OP_Transaction: { } p->expired = 1; rc = SQLITE_SCHEMA; + + /* Set changeCntOn to 0 to prevent the value returned by sqlite3_changes() + ** from being modified in sqlite3VdbeHalt(). If this statement is + ** reprepared, changeCntOn will be set again. */ + p->changeCntOn = 0; } if( rc ) goto abort_due_to_error; break; @@ -91249,7 +96723,7 @@ case OP_SetCookie: { rc = sqlite3BtreeUpdateMeta(pDb->pBt, pOp->p2, pOp->p3); if( pOp->p2==BTREE_SCHEMA_VERSION ){ /* When the schema cookie changes, record the new cookie internally */ - pDb->pSchema->schema_cookie = pOp->p3 - pOp->p5; + *(u32*)&pDb->pSchema->schema_cookie = *(u32*)&pOp->p3 - pOp->p5; db->mDbFlags |= DBFLAG_SchemaChange; sqlite3FkClearTriggerCache(db, pOp->p1); }else if( pOp->p2==BTREE_FILE_FORMAT ){ @@ -91350,7 +96824,7 @@ case OP_SetCookie: { ** ** See also: OP_OpenRead, OP_ReopenIdx */ -case OP_ReopenIdx: { +case OP_ReopenIdx: { /* ncycle */ int nField; KeyInfo *pKeyInfo; u32 p2; @@ -91371,7 +96845,7 @@ case OP_ReopenIdx: { } /* If the cursor is not currently open or is open on a different ** index, then fall through into OP_OpenRead to force a reopen */ -case OP_OpenRead: +case OP_OpenRead: /* ncycle */ case OP_OpenWrite: assert( pOp->opcode==OP_OpenWrite || pOp->p5==0 || pOp->p5==OPFLAG_SEEKEQ ); @@ -91465,7 +96939,7 @@ open_cursor_set_hints: ** ** Duplicate ephemeral cursors are used for self-joins of materialized views. */ -case OP_OpenDup: { +case OP_OpenDup: { /* ncycle */ VdbeCursor *pOrig; /* The original cursor to be duplicated */ VdbeCursor *pCx; /* The new cursor */ @@ -91482,8 +96956,8 @@ case OP_OpenDup: { pCx->pgnoRoot = pOrig->pgnoRoot; pCx->isOrdered = pOrig->isOrdered; pCx->ub.pBtx = pOrig->ub.pBtx; - pCx->hasBeenDuped = 1; - pOrig->hasBeenDuped = 1; + pCx->noReuse = 1; + pOrig->noReuse = 1; rc = sqlite3BtreeCursor(pCx->ub.pBtx, pCx->pgnoRoot, BTREE_WRCSR, pCx->pKeyInfo, pCx->uc.pCursor); /* The sqlite3BtreeCursor() routine can only fail for the first cursor @@ -91527,8 +97001,8 @@ case OP_OpenDup: { ** by this opcode will be used for automatically created transient ** indices in joins. */ -case OP_OpenAutoindex: -case OP_OpenEphemeral: { +case OP_OpenAutoindex: /* ncycle */ +case OP_OpenEphemeral: { /* ncycle */ VdbeCursor *pCx; KeyInfo *pKeyInfo; @@ -91550,8 +97024,8 @@ case OP_OpenEphemeral: { aMem[pOp->p3].z = ""; } pCx = p->apCsr[pOp->p1]; - if( pCx && !pCx->hasBeenDuped && ALWAYS(pOp->p2<=pCx->nField) ){ - /* If the ephermeral table is already open and has no duplicates from + if( pCx && !pCx->noReuse && ALWAYS(pOp->p2<=pCx->nField) ){ + /* If the ephemeral table is already open and has no duplicates from ** OP_OpenDup, then erase all existing content so that the table is ** empty again, rather than creating a new table. */ assert( pCx->isEphemeral ); @@ -91686,7 +97160,7 @@ case OP_OpenPseudo: { ** Close a cursor previously opened as P1. If P1 is not ** currently open, this instruction is a no-op. */ -case OP_Close: { +case OP_Close: { /* ncycle */ assert( pOp->p1>=0 && pOp->p1<p->nCursor ); sqlite3VdbeFreeCursor(p, p->apCsr[pOp->p1]); p->apCsr[pOp->p1] = 0; @@ -91803,10 +97277,10 @@ case OP_ColumnsUsed: { ** ** See also: Found, NotFound, SeekGt, SeekGe, SeekLt */ -case OP_SeekLT: /* jump, in3, group */ -case OP_SeekLE: /* jump, in3, group */ -case OP_SeekGE: /* jump, in3, group */ -case OP_SeekGT: { /* jump, in3, group */ +case OP_SeekLT: /* jump, in3, group, ncycle */ +case OP_SeekLE: /* jump, in3, group, ncycle */ +case OP_SeekGE: /* jump, in3, group, ncycle */ +case OP_SeekGT: { /* jump, in3, group, ncycle */ int res; /* Comparison result */ int oc; /* Opcode */ VdbeCursor *pC; /* The cursor to seek */ @@ -91935,7 +97409,13 @@ case OP_SeekGT: { /* jump, in3, group */ r.aMem = &aMem[pOp->p3]; #ifdef SQLITE_DEBUG - { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); } + { + int i; + for(i=0; i<r.nField; i++){ + assert( memIsValid(&r.aMem[i]) ); + if( i>0 ) REGISTER_TRACE(pOp->p3+i, &r.aMem[i]); + } + } #endif r.eqSeen = 0; rc = sqlite3BtreeIndexMoveto(pC->uc.pCursor, &r, &res); @@ -91998,7 +97478,7 @@ seek_not_found: } -/* Opcode: SeekScan P1 P2 * * * +/* Opcode: SeekScan P1 P2 * * P5 ** Synopsis: Scan-ahead up to P1 rows ** ** This opcode is a prefix opcode to OP_SeekGE. In other words, this @@ -92008,8 +97488,8 @@ seek_not_found: ** This opcode uses the P1 through P4 operands of the subsequent ** OP_SeekGE. In the text that follows, the operands of the subsequent ** OP_SeekGE opcode are denoted as SeekOP.P1 through SeekOP.P4. Only -** the P1 and P2 operands of this opcode are also used, and are called -** This.P1 and This.P2. +** the P1, P2 and P5 operands of this opcode are also used, and are called +** This.P1, This.P2 and This.P5. ** ** This opcode helps to optimize IN operators on a multi-column index ** where the IN operator is on the later terms of the index by avoiding @@ -92019,32 +97499,54 @@ seek_not_found: ** ** The SeekGE.P3 and SeekGE.P4 operands identify an unpacked key which ** is the desired entry that we want the cursor SeekGE.P1 to be pointing -** to. Call this SeekGE.P4/P5 row the "target". +** to. Call this SeekGE.P3/P4 row the "target". ** ** If the SeekGE.P1 cursor is not currently pointing to a valid row, ** then this opcode is a no-op and control passes through into the OP_SeekGE. ** ** If the SeekGE.P1 cursor is pointing to a valid row, then that row ** might be the target row, or it might be near and slightly before the -** target row. This opcode attempts to position the cursor on the target -** row by, perhaps by invoking sqlite3BtreeStep() on the cursor -** between 0 and This.P1 times. -** -** There are three possible outcomes from this opcode:<ol> -** -** <li> If after This.P1 steps, the cursor is still pointing to a place that -** is earlier in the btree than the target row, then fall through -** into the subsquence OP_SeekGE opcode. -** -** <li> If the cursor is successfully moved to the target row by 0 or more -** sqlite3BtreeNext() calls, then jump to This.P2, which will land just -** past the OP_IdxGT or OP_IdxGE opcode that follows the OP_SeekGE. -** -** <li> If the cursor ends up past the target row (indicating the the target -** row does not exist in the btree) then jump to SeekOP.P2. +** target row, or it might be after the target row. If the cursor is +** currently before the target row, then this opcode attempts to position +** the cursor on or after the target row by invoking sqlite3BtreeStep() +** on the cursor between 1 and This.P1 times. +** +** The This.P5 parameter is a flag that indicates what to do if the +** cursor ends up pointing at a valid row that is past the target +** row. If This.P5 is false (0) then a jump is made to SeekGE.P2. If +** This.P5 is true (non-zero) then a jump is made to This.P2. The P5==0 +** case occurs when there are no inequality constraints to the right of +** the IN constraint. The jump to SeekGE.P2 ends the loop. The P5!=0 case +** occurs when there are inequality constraints to the right of the IN +** operator. In that case, the This.P2 will point either directly to or +** to setup code prior to the OP_IdxGT or OP_IdxGE opcode that checks for +** loop terminate. +** +** Possible outcomes from this opcode:<ol> +** +** <li> If the cursor is initially not pointed to any valid row, then +** fall through into the subsequent OP_SeekGE opcode. +** +** <li> If the cursor is left pointing to a row that is before the target +** row, even after making as many as This.P1 calls to +** sqlite3BtreeNext(), then also fall through into OP_SeekGE. +** +** <li> If the cursor is left pointing at the target row, either because it +** was at the target row to begin with or because one or more +** sqlite3BtreeNext() calls moved the cursor to the target row, +** then jump to This.P2.., +** +** <li> If the cursor started out before the target row and a call to +** to sqlite3BtreeNext() moved the cursor off the end of the index +** (indicating that the target row definitely does not exist in the +** btree) then jump to SeekGE.P2, ending the loop. +** +** <li> If the cursor ends up on a valid row that is past the target row +** (indicating that the target row does not exist in the btree) then +** jump to SeekOP.P2 if This.P5==0 or to This.P2 if This.P5>0. ** </ol> */ -case OP_SeekScan: { +case OP_SeekScan: { /* ncycle */ VdbeCursor *pC; int res; int nStep; @@ -92052,14 +97554,25 @@ case OP_SeekScan: { assert( pOp[1].opcode==OP_SeekGE ); - /* pOp->p2 points to the first instruction past the OP_IdxGT that - ** follows the OP_SeekGE. */ + /* If pOp->p5 is clear, then pOp->p2 points to the first instruction past the + ** OP_IdxGT that follows the OP_SeekGE. Otherwise, it points to the first + ** opcode past the OP_SeekGE itself. */ assert( pOp->p2>=(int)(pOp-aOp)+2 ); - assert( aOp[pOp->p2-1].opcode==OP_IdxGT || aOp[pOp->p2-1].opcode==OP_IdxGE ); - testcase( aOp[pOp->p2-1].opcode==OP_IdxGE ); - assert( pOp[1].p1==aOp[pOp->p2-1].p1 ); - assert( pOp[1].p2==aOp[pOp->p2-1].p2 ); - assert( pOp[1].p3==aOp[pOp->p2-1].p3 ); +#ifdef SQLITE_DEBUG + if( pOp->p5==0 ){ + /* There are no inequality constraints following the IN constraint. */ + assert( pOp[1].p1==aOp[pOp->p2-1].p1 ); + assert( pOp[1].p2==aOp[pOp->p2-1].p2 ); + assert( pOp[1].p3==aOp[pOp->p2-1].p3 ); + assert( aOp[pOp->p2-1].opcode==OP_IdxGT + || aOp[pOp->p2-1].opcode==OP_IdxGE ); + testcase( aOp[pOp->p2-1].opcode==OP_IdxGE ); + }else{ + /* There are inequality constraints. */ + assert( pOp->p2==(int)(pOp-aOp)+2 ); + assert( aOp[pOp->p2-1].opcode==OP_SeekGE ); + } +#endif assert( pOp->p1>0 ); pC = p->apCsr[pOp[1].p1]; @@ -92093,8 +97606,9 @@ case OP_SeekScan: { while(1){ rc = sqlite3VdbeIdxKeyCompare(db, pC, &r, &res); if( rc ) goto abort_due_to_error; - if( res>0 ){ + if( res>0 && pOp->p5==0 ){ seekscan_search_fail: + /* Jump to SeekGE.P2, ending the loop */ #ifdef SQLITE_DEBUG if( db->flags&SQLITE_VdbeTrace ){ printf("... %d steps and then skip\n", pOp->p1 - nStep); @@ -92104,7 +97618,8 @@ case OP_SeekScan: { pOp++; goto jump_to_p2; } - if( res==0 ){ + if( res>=0 ){ + /* Jump to This.P2, bypassing the OP_SeekGE opcode */ #ifdef SQLITE_DEBUG if( db->flags&SQLITE_VdbeTrace ){ printf("... %d steps and then success\n", pOp->p1 - nStep); @@ -92124,6 +97639,7 @@ case OP_SeekScan: { break; } nStep--; + pC->cacheStatus = CACHE_STALE; rc = sqlite3BtreeNext(pC->uc.pCursor, 0); if( rc ){ if( rc==SQLITE_DONE ){ @@ -92153,7 +97669,7 @@ case OP_SeekScan: { ** ** P1 must be a valid b-tree cursor. */ -case OP_SeekHit: { +case OP_SeekHit: { /* ncycle */ VdbeCursor *pC; assert( pOp->p1>=0 && pOp->p1<p->nCursor ); pC = p->apCsr[pOp->p1]; @@ -92180,12 +97696,16 @@ case OP_SeekHit: { /* Opcode: IfNotOpen P1 P2 * * * ** Synopsis: if( !csr[P1] ) goto P2 ** -** If cursor P1 is not open, jump to instruction P2. Otherwise, fall through. +** If cursor P1 is not open or if P1 is set to a NULL row using the +** OP_NullRow opcode, then jump to instruction P2. Otherwise, fall through. */ case OP_IfNotOpen: { /* jump */ + VdbeCursor *pCur; + assert( pOp->p1>=0 && pOp->p1<p->nCursor ); - VdbeBranchTaken(p->apCsr[pOp->p1]==0, 2); - if( !p->apCsr[pOp->p1] ){ + pCur = p->apCsr[pOp->p1]; + VdbeBranchTaken(pCur==0 || pCur->nullRow, 2); + if( pCur==0 || pCur->nullRow ){ goto jump_to_p2_and_check_for_interrupt; } break; @@ -92236,13 +97756,13 @@ case OP_IfNotOpen: { /* jump */ ** operands to OP_NotFound and OP_IdxGT. ** ** This opcode is an optimization attempt only. If this opcode always -** falls through, the correct answer is still obtained, but extra works +** falls through, the correct answer is still obtained, but extra work ** is performed. ** ** A value of N in the seekHit flag of cursor P1 means that there exists ** a key P3:N that will match some record in the index. We want to know ** if it is possible for a record P3:P4 to match some record in the -** index. If it is not possible, we can skips some work. So if seekHit +** index. If it is not possible, we can skip some work. So if seekHit ** is less than P4, attempt to find out if a match is possible by running ** OP_NotFound. ** @@ -92281,7 +97801,7 @@ case OP_IfNotOpen: { /* jump */ ** ** See also: NotFound, Found, NotExists */ -case OP_IfNoHope: { /* jump, in3 */ +case OP_IfNoHope: { /* jump, in3, ncycle */ VdbeCursor *pC; assert( pOp->p1>=0 && pOp->p1<p->nCursor ); pC = p->apCsr[pOp->p1]; @@ -92295,15 +97815,12 @@ case OP_IfNoHope: { /* jump, in3 */ /* Fall through into OP_NotFound */ /* no break */ deliberate_fall_through } -case OP_NoConflict: /* jump, in3 */ -case OP_NotFound: /* jump, in3 */ -case OP_Found: { /* jump, in3 */ +case OP_NoConflict: /* jump, in3, ncycle */ +case OP_NotFound: /* jump, in3, ncycle */ +case OP_Found: { /* jump, in3, ncycle */ int alreadyExists; - int takeJump; int ii; VdbeCursor *pC; - int res; - UnpackedRecord *pFree; UnpackedRecord *pIdxKey; UnpackedRecord r; @@ -92318,14 +97835,15 @@ case OP_Found: { /* jump, in3 */ #ifdef SQLITE_DEBUG pC->seekOp = pOp->opcode; #endif - pIn3 = &aMem[pOp->p3]; + r.aMem = &aMem[pOp->p3]; assert( pC->eCurType==CURTYPE_BTREE ); assert( pC->uc.pCursor!=0 ); assert( pC->isTable==0 ); - if( pOp->p4.i>0 ){ + r.nField = (u16)pOp->p4.i; + if( r.nField>0 ){ + /* Key values in an array of registers */ r.pKeyInfo = pC->pKeyInfo; - r.nField = (u16)pOp->p4.i; - r.aMem = pIn3; + r.default_rc = 0; #ifdef SQLITE_DEBUG for(ii=0; ii<r.nField; ii++){ assert( memIsValid(&r.aMem[ii]) ); @@ -92333,37 +97851,25 @@ case OP_Found: { /* jump, in3 */ if( ii ) REGISTER_TRACE(pOp->p3+ii, &r.aMem[ii]); } #endif - pIdxKey = &r; - pFree = 0; + rc = sqlite3BtreeIndexMoveto(pC->uc.pCursor, &r, &pC->seekResult); }else{ - assert( pIn3->flags & MEM_Blob ); - rc = ExpandBlob(pIn3); + /* Composite key generated by OP_MakeRecord */ + assert( r.aMem->flags & MEM_Blob ); + assert( pOp->opcode!=OP_NoConflict ); + rc = ExpandBlob(r.aMem); assert( rc==SQLITE_OK || rc==SQLITE_NOMEM ); if( rc ) goto no_mem; - pFree = pIdxKey = sqlite3VdbeAllocUnpackedRecord(pC->pKeyInfo); + pIdxKey = sqlite3VdbeAllocUnpackedRecord(pC->pKeyInfo); if( pIdxKey==0 ) goto no_mem; - sqlite3VdbeRecordUnpack(pC->pKeyInfo, pIn3->n, pIn3->z, pIdxKey); - } - pIdxKey->default_rc = 0; - takeJump = 0; - if( pOp->opcode==OP_NoConflict ){ - /* For the OP_NoConflict opcode, take the jump if any of the - ** input fields are NULL, since any key with a NULL will not - ** conflict */ - for(ii=0; ii<pIdxKey->nField; ii++){ - if( pIdxKey->aMem[ii].flags & MEM_Null ){ - takeJump = 1; - break; - } - } + sqlite3VdbeRecordUnpack(pC->pKeyInfo, r.aMem->n, r.aMem->z, pIdxKey); + pIdxKey->default_rc = 0; + rc = sqlite3BtreeIndexMoveto(pC->uc.pCursor, pIdxKey, &pC->seekResult); + sqlite3DbFreeNN(db, pIdxKey); } - rc = sqlite3BtreeIndexMoveto(pC->uc.pCursor, pIdxKey, &res); - if( pFree ) sqlite3DbFreeNN(db, pFree); if( rc!=SQLITE_OK ){ goto abort_due_to_error; } - pC->seekResult = res; - alreadyExists = (res==0); + alreadyExists = (pC->seekResult==0); pC->nullRow = 1-alreadyExists; pC->deferredMoveto = 0; pC->cacheStatus = CACHE_STALE; @@ -92371,9 +97877,25 @@ case OP_Found: { /* jump, in3 */ VdbeBranchTaken(alreadyExists!=0,2); if( alreadyExists ) goto jump_to_p2; }else{ - VdbeBranchTaken(takeJump||alreadyExists==0,2); - if( takeJump || !alreadyExists ) goto jump_to_p2; - if( pOp->opcode==OP_IfNoHope ) pC->seekHit = pOp->p4.i; + if( !alreadyExists ){ + VdbeBranchTaken(1,2); + goto jump_to_p2; + } + if( pOp->opcode==OP_NoConflict ){ + /* For the OP_NoConflict opcode, take the jump if any of the + ** input fields are NULL, since any key with a NULL will not + ** conflict */ + for(ii=0; ii<r.nField; ii++){ + if( r.aMem[ii].flags & MEM_Null ){ + VdbeBranchTaken(1,2); + goto jump_to_p2; + } + } + } + VdbeBranchTaken(0,2); + if( pOp->opcode==OP_IfNoHope ){ + pC->seekHit = pOp->p4.i; + } } break; } @@ -92425,7 +97947,7 @@ case OP_Found: { /* jump, in3 */ ** ** See also: Found, NotFound, NoConflict, SeekRowid */ -case OP_SeekRowid: { /* jump, in3 */ +case OP_SeekRowid: { /* jump, in3, ncycle */ VdbeCursor *pC; BtCursor *pCrsr; int res; @@ -92450,7 +97972,7 @@ case OP_SeekRowid: { /* jump, in3 */ } /* Fall through into OP_NotExists */ /* no break */ deliberate_fall_through -case OP_NotExists: /* jump, in3 */ +case OP_NotExists: /* jump, in3, ncycle */ pIn3 = &aMem[pOp->p3]; assert( (pIn3->flags & MEM_Int)!=0 || pOp->opcode==OP_SeekRowid ); assert( pOp->p1>=0 && pOp->p1<p->nCursor ); @@ -92730,8 +98252,11 @@ case OP_Insert: { if( pOp->p5 & OPFLAG_ISNOOP ) break; #endif - if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++; - if( pOp->p5 & OPFLAG_LASTROWID ) db->lastRowid = x.nKey; + assert( (pOp->p5 & OPFLAG_LASTROWID)==0 || (pOp->p5 & OPFLAG_NCHANGE)!=0 ); + if( pOp->p5 & OPFLAG_NCHANGE ){ + p->nChange++; + if( pOp->p5 & OPFLAG_LASTROWID ) db->lastRowid = x.nKey; + } assert( (pData->flags & (MEM_Blob|MEM_Str))!=0 || pData->n==0 ); x.pData = pData->z; x.nData = pData->n; @@ -92742,12 +98267,14 @@ case OP_Insert: { x.nZero = 0; } x.pKey = 0; + assert( BTREE_PREFORMAT==OPFLAG_PREFORMAT ); rc = sqlite3BtreeInsert(pC->uc.pCursor, &x, (pOp->p5 & (OPFLAG_APPEND|OPFLAG_SAVEPOSITION|OPFLAG_PREFORMAT)), seekResult ); pC->deferredMoveto = 0; pC->cacheStatus = CACHE_STALE; + colCacheCtr++; /* Invoke the update-hook if required. */ if( rc ) goto abort_due_to_error; @@ -92801,13 +98328,18 @@ case OP_RowCell: { ** left in an undefined state. ** ** If the OPFLAG_AUXDELETE bit is set on P5, that indicates that this -** delete one of several associated with deleting a table row and all its -** associated index entries. Exactly one of those deletes is the "primary" -** delete. The others are all on OPFLAG_FORDELETE cursors or else are -** marked with the AUXDELETE flag. +** delete is one of several associated with deleting a table row and +** all its associated index entries. Exactly one of those deletes is +** the "primary" delete. The others are all on OPFLAG_FORDELETE +** cursors or else are marked with the AUXDELETE flag. ** -** If the OPFLAG_NCHANGE flag of P2 (NB: P2 not P5) is set, then the row -** change count is incremented (otherwise not). +** If the OPFLAG_NCHANGE (0x01) flag of P2 (NB: P2 not P5) is set, then +** the row change count is incremented (otherwise not). +** +** If the OPFLAG_ISNOOP (0x40) flag of P2 (not P5!) is set, then the +** pre-update-hook for deletes is run, but the btree is otherwise unchanged. +** This happens when the OP_Delete is to be shortly followed by an OP_Insert +** with the same key, causing the btree entry to be overwritten. ** ** P1 must not be pseudo-table. It has to be a real table with ** multiple rows. @@ -92908,6 +98440,7 @@ case OP_Delete: { rc = sqlite3BtreeDelete(pC->uc.pCursor, pOp->p5); pC->cacheStatus = CACHE_STALE; + colCacheCtr++; pC->seekResult = 0; if( rc ) goto abort_due_to_error; @@ -92975,13 +98508,13 @@ case OP_SorterCompare: { ** Write into register P2 the current sorter data for sorter cursor P1. ** Then clear the column header cache on cursor P3. ** -** This opcode is normally use to move a record out of the sorter and into +** This opcode is normally used to move a record out of the sorter and into ** a register that is the source for a pseudo-table cursor created using ** OpenPseudo. That pseudo-table cursor is the one that is identified by ** parameter P3. Clearing the P3 column cache as part of this opcode saves ** us from having to issue a separate NullRow instruction to clear that cache. */ -case OP_SorterData: { +case OP_SorterData: { /* ncycle */ VdbeCursor *pC; pOut = &aMem[pOp->p2]; @@ -93064,7 +98597,7 @@ case OP_RowData: { } /* Opcode: Rowid P1 P2 * * * -** Synopsis: r[P2]=rowid +** Synopsis: r[P2]=PX rowid of P1 ** ** Store in register P2 an integer which is the key of the table entry that ** P1 is currently point to. @@ -93073,7 +98606,7 @@ case OP_RowData: { ** be a separate OP_VRowid opcode for use with virtual tables, but this ** one opcode now works for both table types. */ -case OP_Rowid: { /* out2 */ +case OP_Rowid: { /* out2, ncycle */ VdbeCursor *pC; i64 v; sqlite3_vtab *pVtab; @@ -93120,16 +98653,24 @@ case OP_Rowid: { /* out2 */ ** that occur while the cursor is on the null row will always ** write a NULL. ** -** Or, if P1 is a Pseudo-Cursor (a cursor opened using OP_OpenPseudo) -** just reset the cache for that cursor. This causes the row of -** content held by the pseudo-cursor to be reparsed. +** If cursor P1 is not previously opened, open it now to a special +** pseudo-cursor that always returns NULL for every column. */ case OP_NullRow: { VdbeCursor *pC; assert( pOp->p1>=0 && pOp->p1<p->nCursor ); pC = p->apCsr[pOp->p1]; - assert( pC!=0 ); + if( pC==0 ){ + /* If the cursor is not already open, create a special kind of + ** pseudo-cursor that always gives null rows. */ + pC = allocateCursor(p, pOp->p1, 1, CURTYPE_PSEUDO); + if( pC==0 ) goto no_mem; + pC->seekResult = 0; + pC->isTable = 1; + pC->noReuse = 1; + pC->uc.pCursor = sqlite3BtreeFakeValidCursor(); + } pC->nullRow = 1; pC->cacheStatus = CACHE_STALE; if( pC->eCurType==CURTYPE_BTREE ){ @@ -93164,8 +98705,8 @@ case OP_NullRow: { ** from the end toward the beginning. In other words, the cursor is ** configured to use Prev, not Next. */ -case OP_SeekEnd: -case OP_Last: { /* jump */ +case OP_SeekEnd: /* ncycle */ +case OP_Last: { /* jump, ncycle */ VdbeCursor *pC; BtCursor *pCrsr; int res; @@ -93248,8 +98789,8 @@ case OP_IfSmaller: { /* jump */ ** regression tests can determine whether or not the optimizer is ** correctly optimizing out sorts. */ -case OP_SorterSort: /* jump */ -case OP_Sort: { /* jump */ +case OP_SorterSort: /* jump ncycle */ +case OP_Sort: { /* jump ncycle */ #ifdef SQLITE_TEST sqlite3_sort_count++; sqlite3_search_count--; @@ -93266,17 +98807,22 @@ case OP_Sort: { /* jump */ ** If the table or index is not empty, fall through to the following ** instruction. ** +** If P2 is zero, that is an assertion that the P1 table is never +** empty and hence the jump will never be taken. +** ** This opcode leaves the cursor configured to move in forward order, ** from the beginning toward the end. In other words, the cursor is ** configured to use Next, not Prev. */ -case OP_Rewind: { /* jump */ +case OP_Rewind: { /* jump, ncycle */ VdbeCursor *pC; BtCursor *pCrsr; int res; assert( pOp->p1>=0 && pOp->p1<p->nCursor ); assert( pOp->p5==0 ); + assert( pOp->p2>=0 && pOp->p2<p->nOp ); + pC = p->apCsr[pOp->p1]; assert( pC!=0 ); assert( isSorter(pC)==(pOp->opcode==OP_SorterSort) ); @@ -93296,13 +98842,14 @@ case OP_Rewind: { /* jump */ } if( rc ) goto abort_due_to_error; pC->nullRow = (u8)res; - assert( pOp->p2>0 && pOp->p2<p->nOp ); - VdbeBranchTaken(res!=0,2); - if( res ) goto jump_to_p2; + if( pOp->p2>0 ){ + VdbeBranchTaken(res!=0,2); + if( res ) goto jump_to_p2; + } break; } -/* Opcode: Next P1 P2 P3 P4 P5 +/* Opcode: Next P1 P2 P3 * P5 ** ** Advance cursor P1 so that it points to the next key/data pair in its ** table or index. If there are no more key/value pairs then fall through @@ -93321,15 +98868,12 @@ case OP_Rewind: { /* jump */ ** omitted if that index had been unique. P3 is usually 0. P3 is ** always either 0 or 1. ** -** P4 is always of type P4_ADVANCE. The function pointer points to -** sqlite3BtreeNext(). -** ** If P5 is positive and the jump is taken, then event counter ** number P5-1 in the prepared statement is incremented. ** ** See also: Prev */ -/* Opcode: Prev P1 P2 P3 P4 P5 +/* Opcode: Prev P1 P2 P3 * P5 ** ** Back up cursor P1 so that it points to the previous key/data pair in its ** table or index. If there is no previous key/value pairs then fall through @@ -93349,9 +98893,6 @@ case OP_Rewind: { /* jump */ ** omitted if that index had been unique. P3 is usually 0. P3 is ** always either 0 or 1. ** -** P4 is always of type P4_ADVANCE. The function pointer points to -** sqlite3BtreePrevious(). -** ** If P5 is positive and the jump is taken, then event counter ** number P5-1 in the prepared statement is incremented. */ @@ -93369,30 +98910,37 @@ case OP_SorterNext: { /* jump */ assert( isSorter(pC) ); rc = sqlite3VdbeSorterNext(db, pC); goto next_tail; -case OP_Prev: /* jump */ -case OP_Next: /* jump */ + +case OP_Prev: /* jump, ncycle */ assert( pOp->p1>=0 && pOp->p1<p->nCursor ); - assert( pOp->p5<ArraySize(p->aCounter) ); + assert( pOp->p5==0 + || pOp->p5==SQLITE_STMTSTATUS_FULLSCAN_STEP + || pOp->p5==SQLITE_STMTSTATUS_AUTOINDEX); pC = p->apCsr[pOp->p1]; assert( pC!=0 ); assert( pC->deferredMoveto==0 ); assert( pC->eCurType==CURTYPE_BTREE ); - assert( pOp->opcode!=OP_Next || pOp->p4.xAdvance==sqlite3BtreeNext ); - assert( pOp->opcode!=OP_Prev || pOp->p4.xAdvance==sqlite3BtreePrevious ); + assert( pC->seekOp==OP_SeekLT || pC->seekOp==OP_SeekLE + || pC->seekOp==OP_Last || pC->seekOp==OP_IfNoHope + || pC->seekOp==OP_NullRow); + rc = sqlite3BtreePrevious(pC->uc.pCursor, pOp->p3); + goto next_tail; - /* The Next opcode is only used after SeekGT, SeekGE, Rewind, and Found. - ** The Prev opcode is only used after SeekLT, SeekLE, and Last. */ - assert( pOp->opcode!=OP_Next - || pC->seekOp==OP_SeekGT || pC->seekOp==OP_SeekGE +case OP_Next: /* jump, ncycle */ + assert( pOp->p1>=0 && pOp->p1<p->nCursor ); + assert( pOp->p5==0 + || pOp->p5==SQLITE_STMTSTATUS_FULLSCAN_STEP + || pOp->p5==SQLITE_STMTSTATUS_AUTOINDEX); + pC = p->apCsr[pOp->p1]; + assert( pC!=0 ); + assert( pC->deferredMoveto==0 ); + assert( pC->eCurType==CURTYPE_BTREE ); + assert( pC->seekOp==OP_SeekGT || pC->seekOp==OP_SeekGE || pC->seekOp==OP_Rewind || pC->seekOp==OP_Found || pC->seekOp==OP_NullRow|| pC->seekOp==OP_SeekRowid || pC->seekOp==OP_IfNoHope); - assert( pOp->opcode!=OP_Prev - || pC->seekOp==OP_SeekLT || pC->seekOp==OP_SeekLE - || pC->seekOp==OP_Last || pC->seekOp==OP_IfNoHope - || pC->seekOp==OP_NullRow); + rc = sqlite3BtreeNext(pC->uc.pCursor, pOp->p3); - rc = pOp->p4.xAdvance(pC->uc.pCursor, pOp->p3); next_tail: pC->cacheStatus = CACHE_STALE; VdbeBranchTaken(rc==SQLITE_OK,2); @@ -93570,8 +99118,8 @@ case OP_IdxDelete: { ** ** See also: Rowid, MakeRecord. */ -case OP_DeferredSeek: -case OP_IdxRowid: { /* out2 */ +case OP_DeferredSeek: /* ncycle */ +case OP_IdxRowid: { /* out2, ncycle */ VdbeCursor *pC; /* The P1 index cursor */ VdbeCursor *pTabCur; /* The P2 table cursor (OP_DeferredSeek only) */ i64 rowid; /* Rowid that P1 current points to */ @@ -93579,9 +99127,9 @@ case OP_IdxRowid: { /* out2 */ assert( pOp->p1>=0 && pOp->p1<p->nCursor ); pC = p->apCsr[pOp->p1]; assert( pC!=0 ); - assert( pC->eCurType==CURTYPE_BTREE ); + assert( pC->eCurType==CURTYPE_BTREE || IsNullCursor(pC) ); assert( pC->uc.pCursor!=0 ); - assert( pC->isTable==0 ); + assert( pC->isTable==0 || IsNullCursor(pC) ); assert( pC->deferredMoveto==0 ); assert( !pC->nullRow || pOp->opcode==OP_IdxRowid ); @@ -93589,10 +99137,10 @@ case OP_IdxRowid: { /* out2 */ ** of sqlite3VdbeCursorRestore() and sqlite3VdbeIdxRowid(). */ rc = sqlite3VdbeCursorRestore(pC); - /* sqlite3VbeCursorRestore() can only fail if the record has been deleted - ** out from under the cursor. That will never happens for an IdxRowid - ** or Seek opcode */ - if( NEVER(rc!=SQLITE_OK) ) goto abort_due_to_error; + /* sqlite3VdbeCursorRestore() may fail if the cursor has been disturbed + ** since it was last positioned and an error (e.g. OOM or an IO error) + ** occurs while trying to reposition it. */ + if( rc!=SQLITE_OK ) goto abort_due_to_error; if( !pC->nullRow ){ rowid = 0; /* Not needed. Only used to silence a warning. */ @@ -93610,6 +99158,7 @@ case OP_IdxRowid: { /* out2 */ pTabCur->nullRow = 0; pTabCur->movetoTarget = rowid; pTabCur->deferredMoveto = 1; + pTabCur->cacheStatus = CACHE_STALE; assert( pOp->p4type==P4_INTARRAY || pOp->p4.ai==0 ); assert( !pTabCur->isEphemeral ); pTabCur->ub.aAltMap = pOp->p4.ai; @@ -93632,8 +99181,8 @@ case OP_IdxRowid: { /* out2 */ ** seek operation now, without further delay. If the cursor seek has ** already occurred, this instruction is a no-op. */ -case OP_FinishSeek: { - VdbeCursor *pC; /* The P1 index cursor */ +case OP_FinishSeek: { /* ncycle */ + VdbeCursor *pC; /* The P1 index cursor */ assert( pOp->p1>=0 && pOp->p1<p->nCursor ); pC = p->apCsr[pOp->p1]; @@ -93688,10 +99237,10 @@ case OP_FinishSeek: { ** If the P1 index entry is less than or equal to the key value then jump ** to P2. Otherwise fall through to the next instruction. */ -case OP_IdxLE: /* jump */ -case OP_IdxGT: /* jump */ -case OP_IdxLT: /* jump */ -case OP_IdxGE: { /* jump */ +case OP_IdxLE: /* jump, ncycle */ +case OP_IdxGT: /* jump, ncycle */ +case OP_IdxLT: /* jump, ncycle */ +case OP_IdxGE: { /* jump, ncycle */ VdbeCursor *pC; int res; UnpackedRecord r; @@ -93744,7 +99293,7 @@ case OP_IdxGE: { /* jump */ rc = sqlite3VdbeMemFromBtreeZeroOffset(pCur, (u32)nCellKey, &m); if( rc ) goto abort_due_to_error; res = sqlite3VdbeRecordCompareWithSkip(m.n, m.z, &r, 0); - sqlite3VdbeMemRelease(&m); + sqlite3VdbeMemReleaseMalloc(&m); } /* End of inlined sqlite3VdbeIdxKeyCompare() */ @@ -93768,7 +99317,7 @@ case OP_IdxGE: { /* jump */ ** file is given by P1. ** ** The table being destroyed is in the main database file if P3==0. If -** P3==1 then the table to be clear is in the auxiliary database file +** P3==1 then the table to be destroyed is in the auxiliary database file ** that is used to store tables create using CREATE TEMPORARY TABLE. ** ** If AUTOVACUUM is enabled then it is possible that another root page @@ -93828,8 +99377,8 @@ case OP_Destroy: { /* out2 */ ** in the database file is given by P1. But, unlike Destroy, do not ** remove the table or index from the database file. ** -** The table being clear is in the main database file if P2==0. If -** P2==1 then the table to be clear is in the auxiliary database file +** The table being cleared is in the main database file if P2==0. If +** P2==1 then the table to be cleared is in the auxiliary database file ** that is used to store tables create using CREATE TEMPORARY TABLE. ** ** If the P3 value is non-zero, then the row change count is incremented @@ -93915,13 +99464,41 @@ case OP_CreateBtree: { /* out2 */ /* Opcode: SqlExec * * * P4 * ** ** Run the SQL statement or statements specified in the P4 string. +** Disable Auth and Trace callbacks while those statements are running if +** P1 is true. */ case OP_SqlExec: { + char *zErr; +#ifndef SQLITE_OMIT_AUTHORIZATION + sqlite3_xauth xAuth; +#endif + u8 mTrace; + sqlite3VdbeIncrWriteCounter(p, 0); db->nSqlExec++; - rc = sqlite3_exec(db, pOp->p4.z, 0, 0, 0); + zErr = 0; +#ifndef SQLITE_OMIT_AUTHORIZATION + xAuth = db->xAuth; +#endif + mTrace = db->mTrace; + if( pOp->p1 ){ +#ifndef SQLITE_OMIT_AUTHORIZATION + db->xAuth = 0; +#endif + db->mTrace = 0; + } + rc = sqlite3_exec(db, pOp->p4.z, 0, 0, &zErr); db->nSqlExec--; - if( rc ) goto abort_due_to_error; +#ifndef SQLITE_OMIT_AUTHORIZATION + db->xAuth = xAuth; +#endif + db->mTrace = mTrace; + if( zErr || rc ){ + sqlite3VdbeError(p, "%s", zErr); + sqlite3_free(zErr); + if( rc==SQLITE_NOMEM ) goto no_mem; + goto abort_due_to_error; + } break; } @@ -94102,13 +99679,14 @@ case OP_IntegrityCk: { pIn1 = &aMem[pOp->p1]; assert( pOp->p5<db->nDb ); assert( DbMaskTest(p->btreeMask, pOp->p5) ); - z = sqlite3BtreeIntegrityCheck(db, db->aDb[pOp->p5].pBt, &aRoot[1], nRoot, - (int)pnErr->u.i+1, &nErr); + rc = sqlite3BtreeIntegrityCheck(db, db->aDb[pOp->p5].pBt, &aRoot[1], nRoot, + (int)pnErr->u.i+1, &nErr, &z); sqlite3VdbeMemSetNull(pIn1); if( nErr==0 ){ assert( z==0 ); - }else if( z==0 ){ - goto no_mem; + }else if( rc ){ + sqlite3_free(z); + goto abort_due_to_error; }else{ pnErr->u.i -= nErr-1; sqlite3VdbeMemSetStr(pIn1, z, -1, SQLITE_UTF8, sqlite3_free); @@ -94312,9 +99890,6 @@ case OP_Program: { /* jump */ pFrame->aOp = p->aOp; pFrame->nOp = p->nOp; pFrame->token = pProgram->token; -#ifdef SQLITE_ENABLE_STMT_SCANSTATUS - pFrame->anExec = p->anExec; -#endif #ifdef SQLITE_DEBUG pFrame->iFrameMagic = SQLITE_FRAME_MAGIC; #endif @@ -94351,9 +99926,6 @@ case OP_Program: { /* jump */ memset(pFrame->aOnce, 0, (pProgram->nOp + 7)/8); p->aOp = aOp = pProgram->aOp; p->nOp = pProgram->nOp; -#ifdef SQLITE_ENABLE_STMT_SCANSTATUS - p->anExec = 0; -#endif #ifdef SQLITE_DEBUG /* Verify that second and subsequent executions of the same trigger do not ** try to reuse register values from the first use. */ @@ -94493,7 +100065,7 @@ case OP_IfPos: { /* jump, in1 */ ** Synopsis: if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1) ** ** This opcode performs a commonly used computation associated with -** LIMIT and OFFSET process. r[P1] holds the limit counter. r[P3] +** LIMIT and OFFSET processing. r[P1] holds the limit counter. r[P3] ** holds the offset counter. The opcode computes the combined value ** of the LIMIT and OFFSET and stores that value in r[P2]. The r[P2] ** value computed is the total number of rows that will need to be @@ -94625,6 +100197,7 @@ case OP_AggStep: { pCtx->pVdbe = p; pCtx->skipFlag = 0; pCtx->isError = 0; + pCtx->enc = encoding; pCtx->argc = n; pOp->p4type = P4_FUNCCTX; pOp->p4.pCtx = pCtx; @@ -94659,7 +100232,7 @@ case OP_AggStep1: { /* If this function is inside of a trigger, the register array in aMem[] ** might change from one evaluation to the next. The next block of code ** checks to see if the register array has changed, and if so it - ** reinitializes the relavant parts of the sqlite3_context object */ + ** reinitializes the relevant parts of the sqlite3_context object */ if( pCtx->pMem != pMem ){ pCtx->pMem = pMem; for(i=pCtx->argc-1; i>=0; i--) pCtx->argv[i] = &aMem[pOp->p2+i]; @@ -94754,9 +100327,7 @@ case OP_AggFinal: { } sqlite3VdbeChangeEncoding(pMem, encoding); UPDATE_MAX_BLOBSIZE(pMem); - if( sqlite3VdbeMemTooBig(pMem) ){ - goto too_big; - } + REGISTER_TRACE((int)(pMem-aMem), pMem); break; } @@ -95112,7 +100683,7 @@ case OP_VDestroy: { ** P1 is a cursor number. This opcode opens a cursor to the virtual ** table and stores that cursor in P1. */ -case OP_VOpen: { +case OP_VOpen: { /* ncycle */ VdbeCursor *pCur; sqlite3_vtab_cursor *pVCur; sqlite3_vtab *pVtab; @@ -95149,6 +100720,52 @@ case OP_VOpen: { #endif /* SQLITE_OMIT_VIRTUALTABLE */ #ifndef SQLITE_OMIT_VIRTUALTABLE +/* Opcode: VCheck P1 P2 P3 P4 * +** +** P4 is a pointer to a Table object that is a virtual table in schema P1 +** that supports the xIntegrity() method. This opcode runs the xIntegrity() +** method for that virtual table, using P3 as the integer argument. If +** an error is reported back, the table name is prepended to the error +** message and that message is stored in P2. If no errors are seen, +** register P2 is set to NULL. +*/ +case OP_VCheck: { /* out2 */ + Table *pTab; + sqlite3_vtab *pVtab; + const sqlite3_module *pModule; + char *zErr = 0; + + pOut = &aMem[pOp->p2]; + sqlite3VdbeMemSetNull(pOut); /* Innocent until proven guilty */ + assert( pOp->p4type==P4_TABLEREF ); + pTab = pOp->p4.pTab; + assert( pTab!=0 ); + assert( pTab->nTabRef>0 ); + assert( IsVirtual(pTab) ); + if( pTab->u.vtab.p==0 ) break; + pVtab = pTab->u.vtab.p->pVtab; + assert( pVtab!=0 ); + pModule = pVtab->pModule; + assert( pModule!=0 ); + assert( pModule->iVersion>=4 ); + assert( pModule->xIntegrity!=0 ); + sqlite3VtabLock(pTab->u.vtab.p); + assert( pOp->p1>=0 && pOp->p1<db->nDb ); + rc = pModule->xIntegrity(pVtab, db->aDb[pOp->p1].zDbSName, pTab->zName, + pOp->p3, &zErr); + sqlite3VtabUnlock(pTab->u.vtab.p); + if( rc ){ + sqlite3_free(zErr); + goto abort_due_to_error; + } + if( zErr ){ + sqlite3VdbeMemSetStr(pOut, zErr, -1, SQLITE_UTF8, sqlite3_free); + } + break; +} +#endif /* SQLITE_OMIT_VIRTUALTABLE */ + +#ifndef SQLITE_OMIT_VIRTUALTABLE /* Opcode: VInitIn P1 P2 P3 * * ** Synopsis: r[P2]=ValueList(P1,P3) ** @@ -95159,7 +100776,7 @@ case OP_VOpen: { ** cursor. Register P3 is used to hold the values returned by ** sqlite3_vtab_in_first() and sqlite3_vtab_in_next(). */ -case OP_VInitIn: { /* out2 */ +case OP_VInitIn: { /* out2, ncycle */ VdbeCursor *pC; /* The cursor containing the RHS values */ ValueList *pRhs; /* New ValueList object to put in reg[P2] */ @@ -95170,7 +100787,7 @@ case OP_VInitIn: { /* out2 */ pRhs->pOut = &aMem[pOp->p3]; pOut = out2Prerelease(p, pOp); pOut->flags = MEM_Null; - sqlite3VdbeMemSetPointer(pOut, pRhs, "ValueList", sqlite3_free); + sqlite3VdbeMemSetPointer(pOut, pRhs, "ValueList", sqlite3VdbeValueListFree); break; } #endif /* SQLITE_OMIT_VIRTUALTABLE */ @@ -95196,7 +100813,7 @@ case OP_VInitIn: { /* out2 */ ** ** A jump is made to P2 if the result set after filtering would be empty. */ -case OP_VFilter: { /* jump */ +case OP_VFilter: { /* jump, ncycle */ int nArg; int iQuery; const sqlite3_module *pModule; @@ -95256,15 +100873,15 @@ case OP_VFilter: { /* jump */ ** bits (OPFLAG_LENGTHARG or OPFLAG_TYPEOFARG) but those bits are ** unused by OP_VColumn. */ -case OP_VColumn: { +case OP_VColumn: { /* ncycle */ sqlite3_vtab *pVtab; const sqlite3_module *pModule; Mem *pDest; sqlite3_context sContext; + FuncDef nullFunc; VdbeCursor *pCur = p->apCsr[pOp->p1]; assert( pCur!=0 ); - assert( pCur->eCurType==CURTYPE_VTAB ); assert( pOp->p3>0 && pOp->p3<=(p->nMem+1 - p->nCursor) ); pDest = &aMem[pOp->p3]; memAboutToChange(p, pDest); @@ -95272,11 +100889,16 @@ case OP_VColumn: { sqlite3VdbeMemSetNull(pDest); break; } + assert( pCur->eCurType==CURTYPE_VTAB ); pVtab = pCur->uc.pVCur->pVtab; pModule = pVtab->pModule; assert( pModule->xColumn ); memset(&sContext, 0, sizeof(sContext)); sContext.pOut = pDest; + sContext.enc = encoding; + nullFunc.pUserData = 0; + nullFunc.funcFlags = SQLITE_RESULT_SUBTYPE; + sContext.pFunc = &nullFunc; assert( pOp->p5==OPFLAG_NOCHNG || pOp->p5==0 ); if( pOp->p5 & OPFLAG_NOCHNG ){ sqlite3VdbeMemSetNull(pDest); @@ -95295,9 +100917,6 @@ case OP_VColumn: { REGISTER_TRACE(pOp->p3, pDest); UPDATE_MAX_BLOBSIZE(pDest); - if( sqlite3VdbeMemTooBig(pDest) ){ - goto too_big; - } if( rc ) goto abort_due_to_error; break; } @@ -95310,7 +100929,7 @@ case OP_VColumn: { ** jump to instruction P2. Or, if the virtual table has reached ** the end of its result set, then fall through to the next instruction. */ -case OP_VNext: { /* jump */ +case OP_VNext: { /* jump, ncycle */ sqlite3_vtab *pVtab; const sqlite3_module *pModule; int res; @@ -95541,7 +101160,7 @@ case OP_MaxPgcnt: { /* out2 */ ** This opcode works exactly like OP_Function. The only difference is in ** its name. This opcode is used in places where the function must be ** purely non-deterministic. Some built-in date/time functions can be -** either determinitic of non-deterministic, depending on their arguments. +** either deterministic of non-deterministic, depending on their arguments. ** When those function are used in a non-deterministic way, they will check ** to see if they were called using OP_PureFunc instead of OP_Function, and ** if they were, they throw an error. @@ -95559,11 +101178,12 @@ case OP_Function: { /* group */ /* If this function is inside of a trigger, the register array in aMem[] ** might change from one evaluation to the next. The next block of code ** checks to see if the register array has changed, and if so it - ** reinitializes the relavant parts of the sqlite3_context object */ + ** reinitializes the relevant parts of the sqlite3_context object */ pOut = &aMem[pOp->p3]; if( pCtx->pOut != pOut ){ pCtx->pVdbe = p; pCtx->pOut = pOut; + pCtx->enc = encoding; for(i=pCtx->argc-1; i>=0; i--) pCtx->argv[i] = &aMem[pOp->p2+i]; } assert( pCtx->pVdbe==p ); @@ -95590,17 +101210,63 @@ case OP_Function: { /* group */ if( rc ) goto abort_due_to_error; } - /* Copy the result of the function into register P3 */ - if( pOut->flags & (MEM_Str|MEM_Blob) ){ - sqlite3VdbeChangeEncoding(pOut, encoding); - if( sqlite3VdbeMemTooBig(pOut) ) goto too_big; - } + assert( (pOut->flags&MEM_Str)==0 + || pOut->enc==encoding + || db->mallocFailed ); + assert( !sqlite3VdbeMemTooBig(pOut) ); REGISTER_TRACE(pOp->p3, pOut); UPDATE_MAX_BLOBSIZE(pOut); break; } +/* Opcode: ClrSubtype P1 * * * * +** Synopsis: r[P1].subtype = 0 +** +** Clear the subtype from register P1. +*/ +case OP_ClrSubtype: { /* in1 */ + pIn1 = &aMem[pOp->p1]; + pIn1->flags &= ~MEM_Subtype; + break; +} + +/* Opcode: GetSubtype P1 P2 * * * +** Synopsis: r[P2] = r[P1].subtype +** +** Extract the subtype value from register P1 and write that subtype +** into register P2. If P1 has no subtype, then P1 gets a NULL. +*/ +case OP_GetSubtype: { /* in1 out2 */ + pIn1 = &aMem[pOp->p1]; + pOut = &aMem[pOp->p2]; + if( pIn1->flags & MEM_Subtype ){ + sqlite3VdbeMemSetInt64(pOut, pIn1->eSubtype); + }else{ + sqlite3VdbeMemSetNull(pOut); + } + break; +} + +/* Opcode: SetSubtype P1 P2 * * * +** Synopsis: r[P2].subtype = r[P1] +** +** Set the subtype value of register P2 to the integer from register P1. +** If P1 is NULL, clear the subtype from p2. +*/ +case OP_SetSubtype: { /* in1 out2 */ + pIn1 = &aMem[pOp->p1]; + pOut = &aMem[pOp->p2]; + if( pIn1->flags & MEM_Null ){ + pOut->flags &= ~MEM_Subtype; + }else{ + assert( pIn1->flags & MEM_Int ); + pOut->flags |= MEM_Subtype; + pOut->eSubtype = (u8)(pIn1->u.i & 0xff); + } + break; +} + /* Opcode: FilterAdd P1 * P3 P4 * ** Synopsis: filter(P1) += key(P3@P4) ** @@ -95624,7 +101290,7 @@ case OP_FilterAdd: { printf("hash: %llu modulo %d -> %u\n", h, pIn1->n, (int)(h%pIn1->n)); } #endif - h %= pIn1->n; + h %= (pIn1->n*8); pIn1->z[h/8] |= 1<<(h&7); break; } @@ -95660,7 +101326,7 @@ case OP_Filter: { /* jump */ printf("hash: %llu modulo %d -> %u\n", h, pIn1->n, (int)(h%pIn1->n)); } #endif - h %= pIn1->n; + h %= (pIn1->n*8); if( (pIn1->z[h/8] & (1<<(h&7)))==0 ){ VdbeBranchTaken(1, 2); p->aCounter[SQLITE_STMTSTATUS_FILTER_HIT]++; @@ -95720,7 +101386,7 @@ case OP_Init: { /* jump */ #ifndef SQLITE_OMIT_TRACE if( (db->mTrace & (SQLITE_TRACE_STMT|SQLITE_TRACE_LEGACY))!=0 - && !p->doingRerun + && p->minWriteFileFormat!=254 /* tag-20220401a */ && (zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0 ){ #ifndef SQLITE_OMIT_DEPRECATED @@ -95882,11 +101548,13 @@ default: { /* This is really OP_Noop, OP_Explain */ *****************************************************************************/ } -#ifdef VDBE_PROFILE - { - u64 endTime = sqlite3NProfileCnt ? sqlite3NProfileCnt : sqlite3Hwtime(); - if( endTime>start ) pOrigOp->cycles += endTime - start; - pOrigOp->cnt++; +#if defined(VDBE_PROFILE) + *pnCycle += sqlite3NProfileCnt ? sqlite3NProfileCnt : sqlite3Hwtime(); + pnCycle = 0; +#elif defined(SQLITE_ENABLE_STMT_SCANSTATUS) + if( pnCycle ){ + *pnCycle += sqlite3Hwtime(); + pnCycle = 0; } #endif @@ -95910,7 +101578,7 @@ default: { /* This is really OP_Noop, OP_Explain */ } if( opProperty==0xff ){ /* Never happens. This code exists to avoid a harmless linkage - ** warning aboud sqlite3VdbeRegisterDump() being defined but not + ** warning about sqlite3VdbeRegisterDump() being defined but not ** used. */ sqlite3VdbeRegisterDump(p); } @@ -95949,7 +101617,7 @@ abort_due_to_error: testcase( sqlite3GlobalConfig.xLog!=0 ); sqlite3_log(rc, "statement aborts at %d: [%s] %s", (int)(pOp - aOp), p->zSql, p->zErrMsg); - sqlite3VdbeHalt(p); + if( p->eVdbeState==VDBE_RUN_STATE ) sqlite3VdbeHalt(p); if( rc==SQLITE_IOERR_NOMEM ) sqlite3OomFault(db); if( rc==SQLITE_CORRUPT && db->autoCommit==0 ){ db->flags |= SQLITE_CorruptRdOnly; @@ -95963,6 +101631,18 @@ abort_due_to_error: ** release the mutexes on btrees that were acquired at the ** top. */ vdbe_return: +#if defined(VDBE_PROFILE) + if( pnCycle ){ + *pnCycle += sqlite3NProfileCnt ? sqlite3NProfileCnt : sqlite3Hwtime(); + pnCycle = 0; + } +#elif defined(SQLITE_ENABLE_STMT_SCANSTATUS) + if( pnCycle ){ + *pnCycle += sqlite3Hwtime(); + pnCycle = 0; + } +#endif + #ifndef SQLITE_OMIT_PROGRESS_CALLBACK while( nVmStep>=nProgressLimit && db->xProgress!=0 ){ nProgressLimit += db->nProgressOps; @@ -95974,7 +101654,9 @@ vdbe_return: } #endif p->aCounter[SQLITE_STMTSTATUS_VM_STEP] += (int)nVmStep; - sqlite3VdbeLeave(p); + if( DbMaskNonZero(p->lockMask) ){ + sqlite3VdbeLeave(p); + } assert( rc!=SQLITE_OK || nExtraDelete==0 || sqlite3_strlike("DELETE%",p->zSql,0)!=0 ); @@ -96069,8 +101751,7 @@ static int blobSeekToRow(Incrblob *p, sqlite3_int64 iRow, char **pzErr){ /* Set the value of register r[1] in the SQL statement to integer iRow. ** This is done directly as a performance optimization */ - v->aMem[1].flags = MEM_Int; - v->aMem[1].u.i = iRow; + sqlite3VdbeMemSetInt64(&v->aMem[1], iRow); /* If the statement has been run before (and is paused at the OP_ResultRow) ** then back it up to the point where it does the OP_NotExists. This could @@ -96153,7 +101834,7 @@ SQLITE_API int sqlite3_blob_open( #endif *ppBlob = 0; #ifdef SQLITE_ENABLE_API_ARMOR - if( !sqlite3SafetyCheckOk(db) || zTable==0 ){ + if( !sqlite3SafetyCheckOk(db) || zTable==0 || zColumn==0 ){ return SQLITE_MISUSE_BKPT; } #endif @@ -96352,7 +102033,7 @@ blob_open_out: if( pBlob && pBlob->pStmt ) sqlite3VdbeFinalize((Vdbe *)pBlob->pStmt); sqlite3DbFree(db, pBlob); } - sqlite3ErrorWithMsg(db, rc, (zErr ? "%s" : 0), zErr); + sqlite3ErrorWithMsg(db, rc, (zErr ? "%s" : (char*)0), zErr); sqlite3DbFree(db, zErr); sqlite3ParseObjectReset(&sParse); rc = sqlite3ApiExit(db, rc); @@ -96511,7 +102192,7 @@ SQLITE_API int sqlite3_blob_reopen(sqlite3_blob *pBlob, sqlite3_int64 iRow){ ((Vdbe*)p->pStmt)->rc = SQLITE_OK; rc = blobSeekToRow(p, iRow, &zErr); if( rc!=SQLITE_OK ){ - sqlite3ErrorWithMsg(db, rc, (zErr ? "%s" : 0), zErr); + sqlite3ErrorWithMsg(db, rc, (zErr ? "%s" : (char*)0), zErr); sqlite3DbFree(db, zErr); } assert( rc!=SQLITE_SCHEMA ); @@ -96614,7 +102295,7 @@ SQLITE_API int sqlite3_blob_reopen(sqlite3_blob *pBlob, sqlite3_int64 iRow){ ** The threshold for the amount of main memory to use before flushing ** records to a PMA is roughly the same as the limit configured for the ** page-cache of the main database. Specifically, the threshold is set to -** the value returned by "PRAGMA main.page_size" multipled by +** the value returned by "PRAGMA main.page_size" multiplied by ** that returned by "PRAGMA main.cache_size", in bytes. ** ** If the sorter is running in single-threaded mode, then all PMAs generated @@ -96637,7 +102318,7 @@ SQLITE_API int sqlite3_blob_reopen(sqlite3_blob *pBlob, sqlite3_int64 iRow){ ** ** If there are fewer than SORTER_MAX_MERGE_COUNT PMAs in total and the ** sorter is running in single-threaded mode, then these PMAs are merged -** incrementally as keys are retreived from the sorter by the VDBE. The +** incrementally as keys are retrieved from the sorter by the VDBE. The ** MergeEngine object, described in further detail below, performs this ** merge. ** @@ -96715,7 +102396,7 @@ struct SorterFile { struct SorterList { SorterRecord *pList; /* Linked list of records */ u8 *aMemory; /* If non-NULL, bulk memory to hold pList */ - int szPMA; /* Size of pList as PMA in bytes */ + i64 szPMA; /* Size of pList as PMA in bytes */ }; /* @@ -96800,7 +102481,7 @@ struct MergeEngine { ** ** Essentially, this structure contains all those fields of the VdbeSorter ** structure for which each thread requires a separate instance. For example, -** each thread requries its own UnpackedRecord object to unpack records in +** each thread requeries its own UnpackedRecord object to unpack records in ** as part of comparison operations. ** ** Before a background thread is launched, variable bDone is set to 0. Then, @@ -96824,10 +102505,10 @@ typedef int (*SorterCompare)(SortSubtask*,int*,const void*,int,const void*,int); struct SortSubtask { SQLiteThread *pThread; /* Background thread, if any */ int bDone; /* Set if thread is finished but not joined */ + int nPMA; /* Number of PMAs currently in file */ VdbeSorter *pSorter; /* Sorter that owns this sub-task */ UnpackedRecord *pUnpacked; /* Space to unpack a record */ SorterList list; /* List for thread to write to a PMA */ - int nPMA; /* Number of PMAs currently in file */ SorterCompare xCompare; /* Compare function to use */ SorterFile file; /* Temp file for level-0 PMAs */ SorterFile file2; /* Space for other PMAs */ @@ -96872,7 +102553,7 @@ struct VdbeSorter { ** PMA, in sorted order. The next key to be read is cached in nKey/aKey. ** aKey might point into aMap or into aBuffer. If neither of those locations ** contain a contiguous representation of the key, then aAlloc is allocated -** and the key is copied into aAlloc and aKey is made to poitn to aAlloc. +** and the key is copied into aAlloc and aKey is made to point to aAlloc. ** ** pFd==0 at EOF. */ @@ -98243,7 +103924,7 @@ static int vdbeSorterFlushPMA(VdbeSorter *pSorter){ ** the background thread from a sub-tasks previous turn is still running, ** skip it. If the first (pSorter->nTask-1) sub-tasks are all still busy, ** fall back to using the final sub-task. The first (pSorter->nTask-1) - ** sub-tasks are prefered as they use background threads - the final + ** sub-tasks are preferred as they use background threads - the final ** sub-task uses the main thread. */ for(i=0; i<nWorker; i++){ int iTest = (pSorter->iPrev + i + 1) % nWorker; @@ -98301,8 +103982,8 @@ SQLITE_PRIVATE int sqlite3VdbeSorterWrite( int rc = SQLITE_OK; /* Return Code */ SorterRecord *pNew; /* New list element */ int bFlush; /* True to flush contents of memory to PMA */ - int nReq; /* Bytes of memory required */ - int nPMA; /* Bytes of PMA space required */ + i64 nReq; /* Bytes of memory required */ + i64 nPMA; /* Bytes of PMA space required */ int t; /* serial type of first record field */ assert( pCsr->eCurType==CURTYPE_SORTER ); @@ -98727,7 +104408,7 @@ static int vdbePmaReaderIncrMergeInit(PmaReader *pReadr, int eMode){ rc = vdbeMergeEngineInit(pTask, pIncr->pMerger, eMode); - /* Set up the required files for pIncr. A multi-theaded IncrMerge object + /* Set up the required files for pIncr. A multi-threaded IncrMerge object ** requires two temp files to itself, whereas a single-threaded object ** only requires a region of pTask->file2. */ if( rc==SQLITE_OK ){ @@ -99367,6 +105048,8 @@ static int bytecodevtabConnect( "p5 INT," "comment TEXT," "subprog TEXT," + "nexec INT," + "ncycle INT," "stmt HIDDEN" ");", @@ -99381,6 +105064,9 @@ static int bytecodevtabConnect( ");" }; + (void)argc; + (void)argv; + (void)pzErr; rc = sqlite3_declare_vtab(db, azSchema[isTabUsed]); if( rc==SQLITE_OK ){ pNew = sqlite3_malloc( sizeof(*pNew) ); @@ -99526,7 +105212,7 @@ static int bytecodevtabColumn( } } } - i += 10; + i += 20; } } switch( i ){ @@ -99576,16 +105262,31 @@ static int bytecodevtabColumn( } break; } - case 10: /* tables_used.type */ + +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS + case 9: /* nexec */ + sqlite3_result_int(ctx, pOp->nExec); + break; + case 10: /* ncycle */ + sqlite3_result_int(ctx, pOp->nCycle); + break; +#else + case 9: /* nexec */ + case 10: /* ncycle */ + sqlite3_result_int(ctx, 0); + break; +#endif + + case 20: /* tables_used.type */ sqlite3_result_text(ctx, pCur->zType, -1, SQLITE_STATIC); break; - case 11: /* tables_used.schema */ + case 21: /* tables_used.schema */ sqlite3_result_text(ctx, pCur->zSchema, -1, SQLITE_STATIC); break; - case 12: /* tables_used.name */ + case 22: /* tables_used.name */ sqlite3_result_text(ctx, pCur->zName, -1, SQLITE_STATIC); break; - case 13: /* tables_used.wr */ + case 23: /* tables_used.wr */ sqlite3_result_int(ctx, pOp->opcode==OP_OpenWrite); break; } @@ -99616,6 +105317,7 @@ static int bytecodevtabFilter( bytecodevtab_cursor *pCur = (bytecodevtab_cursor *)pVtabCursor; bytecodevtab *pVTab = (bytecodevtab *)pVtabCursor->pVtab; int rc = SQLITE_OK; + (void)idxStr; bytecodevtabCursorClear(pCur); pCur->iRowid = 0; @@ -99658,7 +105360,7 @@ static int bytecodevtabBestIndex( int rc = SQLITE_CONSTRAINT; struct sqlite3_index_constraint *p; bytecodevtab *pVTab = (bytecodevtab*)tab; - int iBaseCol = pVTab->bTablesUsed ? 4 : 8; + int iBaseCol = pVTab->bTablesUsed ? 4 : 10; pIdxInfo->estimatedCost = (double)100; pIdxInfo->estimatedRows = 100; pIdxInfo->idxNum = 0; @@ -99705,7 +105407,8 @@ static sqlite3_module bytecodevtabModule = { /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ 0, - /* xShadowName */ 0 + /* xShadowName */ 0, + /* xIntegrity */ 0 }; @@ -100084,6 +105787,8 @@ SQLITE_PRIVATE int sqlite3JournalOpen( ){ MemJournal *p = (MemJournal*)pJfd; + assert( zName || nSpill<0 || (flags & SQLITE_OPEN_EXCLUSIVE) ); + /* Zero the file-handle object. If nSpill was passed zero, initialize ** it using the sqlite3OsOpen() function of the underlying VFS. In this ** case none of the code in this module is executed as a result of calls @@ -100227,7 +105932,7 @@ static int walkWindowList(Walker *pWalker, Window *pList, int bOneOnly){ ** The return value from this routine is WRC_Abort to abandon the tree walk ** and WRC_Continue to continue. */ -static SQLITE_NOINLINE int walkExpr(Walker *pWalker, Expr *pExpr){ +SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3WalkExprNN(Walker *pWalker, Expr *pExpr){ int rc; testcase( ExprHasProperty(pExpr, EP_TokenOnly) ); testcase( ExprHasProperty(pExpr, EP_Reduced) ); @@ -100236,7 +105941,9 @@ static SQLITE_NOINLINE int walkExpr(Walker *pWalker, Expr *pExpr){ if( rc ) return rc & WRC_Abort; if( !ExprHasProperty(pExpr,(EP_TokenOnly|EP_Leaf)) ){ assert( pExpr->x.pList==0 || pExpr->pRight==0 ); - if( pExpr->pLeft && walkExpr(pWalker, pExpr->pLeft) ) return WRC_Abort; + if( pExpr->pLeft && sqlite3WalkExprNN(pWalker, pExpr->pLeft) ){ + return WRC_Abort; + } if( pExpr->pRight ){ assert( !ExprHasProperty(pExpr, EP_WinFunc) ); pExpr = pExpr->pRight; @@ -100260,7 +105967,7 @@ static SQLITE_NOINLINE int walkExpr(Walker *pWalker, Expr *pExpr){ return WRC_Continue; } SQLITE_PRIVATE int sqlite3WalkExpr(Walker *pWalker, Expr *pExpr){ - return pExpr ? walkExpr(pWalker,pExpr) : WRC_Continue; + return pExpr ? sqlite3WalkExprNN(pWalker,pExpr) : WRC_Continue; } /* @@ -100386,7 +106093,7 @@ SQLITE_PRIVATE int sqlite3WalkSelect(Walker *pWalker, Select *p){ } /* Increase the walkerDepth when entering a subquery, and -** descrease when leaving the subquery. +** decrease when leaving the subquery. */ SQLITE_PRIVATE int sqlite3WalkerDepthIncrease(Walker *pWalker, Select *pSelect){ UNUSED_PARAMETER(pSelect); @@ -100511,69 +106218,55 @@ static void resolveAlias( sqlite3ExprDelete(db, pDup); pDup = 0; }else{ + Expr temp; incrAggFunctionDepth(pDup, nSubquery); if( pExpr->op==TK_COLLATE ){ assert( !ExprHasProperty(pExpr, EP_IntValue) ); pDup = sqlite3ExprAddCollateString(pParse, pDup, pExpr->u.zToken); } - - /* Before calling sqlite3ExprDelete(), set the EP_Static flag. This - ** prevents ExprDelete() from deleting the Expr structure itself, - ** allowing it to be repopulated by the memcpy() on the following line. - ** The pExpr->u.zToken might point into memory that will be freed by the - ** sqlite3DbFree(db, pDup) on the last line of this block, so be sure to - ** make a copy of the token before doing the sqlite3DbFree(). - */ - ExprSetProperty(pExpr, EP_Static); - sqlite3ExprDelete(db, pExpr); - memcpy(pExpr, pDup, sizeof(*pExpr)); - if( !ExprHasProperty(pExpr, EP_IntValue) && pExpr->u.zToken!=0 ){ - assert( (pExpr->flags & (EP_Reduced|EP_TokenOnly))==0 ); - pExpr->u.zToken = sqlite3DbStrDup(db, pExpr->u.zToken); - pExpr->flags |= EP_MemToken; - } + memcpy(&temp, pDup, sizeof(Expr)); + memcpy(pDup, pExpr, sizeof(Expr)); + memcpy(pExpr, &temp, sizeof(Expr)); if( ExprHasProperty(pExpr, EP_WinFunc) ){ if( ALWAYS(pExpr->y.pWin!=0) ){ pExpr->y.pWin->pOwner = pExpr; } } - sqlite3DbFree(db, pDup); + sqlite3ExprDeferredDelete(pParse, pDup); } } - /* -** Return TRUE if the name zCol occurs anywhere in the USING clause. +** Subqueries store the original database, table and column names for their +** result sets in ExprList.a[].zSpan, in the form "DATABASE.TABLE.COLUMN", +** and mark the expression-list item by setting ExprList.a[].fg.eEName +** to ENAME_TAB. ** -** Return FALSE if the USING clause is NULL or if it does not contain -** zCol. -*/ -static int nameInUsingClause(IdList *pUsing, const char *zCol){ - if( pUsing ){ - int k; - for(k=0; k<pUsing->nId; k++){ - if( sqlite3StrICmp(pUsing->a[k].zName, zCol)==0 ) return 1; - } - } - return 0; -} - -/* -** Subqueries stores the original database, table and column names for their -** result sets in ExprList.a[].zSpan, in the form "DATABASE.TABLE.COLUMN". -** Check to see if the zSpan given to this routine matches the zDb, zTab, -** and zCol. If any of zDb, zTab, and zCol are NULL then those fields will -** match anything. +** Check to see if the zSpan/eEName of the expression-list item passed to this +** routine matches the zDb, zTab, and zCol. If any of zDb, zTab, and zCol are +** NULL then those fields will match anything. Return true if there is a match, +** or false otherwise. +** +** SF_NestedFrom subqueries also store an entry for the implicit rowid (or +** _rowid_, or oid) column by setting ExprList.a[].fg.eEName to ENAME_ROWID, +** and setting zSpan to "DATABASE.TABLE.<rowid-alias>". This type of pItem +** argument matches if zCol is a rowid alias. If it is not NULL, (*pbRowid) +** is set to 1 if there is this kind of match. */ SQLITE_PRIVATE int sqlite3MatchEName( const struct ExprList_item *pItem, const char *zCol, const char *zTab, - const char *zDb + const char *zDb, + int *pbRowid ){ int n; const char *zSpan; - if( pItem->eEName!=ENAME_TAB ) return 0; + int eEName = pItem->fg.eEName; + if( eEName!=ENAME_TAB && (eEName!=ENAME_ROWID || NEVER(pbRowid==0)) ){ + return 0; + } + assert( pbRowid==0 || *pbRowid==0 ); zSpan = pItem->zEName; for(n=0; ALWAYS(zSpan[n]) && zSpan[n]!='.'; n++){} if( zDb && (sqlite3StrNICmp(zSpan, zDb, n)!=0 || zDb[n]!=0) ){ @@ -100585,9 +106278,11 @@ SQLITE_PRIVATE int sqlite3MatchEName( return 0; } zSpan += n+1; - if( zCol && sqlite3StrICmp(zSpan, zCol)!=0 ){ - return 0; + if( zCol ){ + if( eEName==ENAME_TAB && sqlite3StrICmp(zSpan, zCol)!=0 ) return 0; + if( eEName==ENAME_ROWID && sqlite3IsRowid(zCol)==0 ) return 0; } + if( eEName==ENAME_ROWID ) *pbRowid = 1; return 1; } @@ -100620,6 +106315,7 @@ SQLITE_PRIVATE Bitmask sqlite3ExprColUsed(Expr *pExpr){ assert( ExprUseYTab(pExpr) ); pExTab = pExpr->y.pTab; assert( pExTab!=0 ); + assert( n < pExTab->nCol ); if( (pExTab->tabFlags & TF_HasGenerated)!=0 && (pExTab->aCol[n].colFlags & COLFLAG_GENERATED)!=0 ){ @@ -100635,6 +106331,55 @@ SQLITE_PRIVATE Bitmask sqlite3ExprColUsed(Expr *pExpr){ } /* +** Create a new expression term for the column specified by pMatch and +** iColumn. Append this new expression term to the FULL JOIN Match set +** in *ppList. Create a new *ppList if this is the first term in the +** set. +*/ +static void extendFJMatch( + Parse *pParse, /* Parsing context */ + ExprList **ppList, /* ExprList to extend */ + SrcItem *pMatch, /* Source table containing the column */ + i16 iColumn /* The column number */ +){ + Expr *pNew = sqlite3ExprAlloc(pParse->db, TK_COLUMN, 0, 0); + if( pNew ){ + pNew->iTable = pMatch->iCursor; + pNew->iColumn = iColumn; + pNew->y.pTab = pMatch->pTab; + assert( (pMatch->fg.jointype & (JT_LEFT|JT_LTORJ))!=0 ); + ExprSetProperty(pNew, EP_CanBeNull); + *ppList = sqlite3ExprListAppend(pParse, *ppList, pNew); + } +} + +/* +** Return TRUE (non-zero) if zTab is a valid name for the schema table pTab. +*/ +static SQLITE_NOINLINE int isValidSchemaTableName( + const char *zTab, /* Name as it appears in the SQL */ + Table *pTab, /* The schema table we are trying to match */ + Schema *pSchema /* non-NULL if a database qualifier is present */ +){ + const char *zLegacy; + assert( pTab!=0 ); + assert( pTab->tnum==1 ); + if( sqlite3StrNICmp(zTab, "sqlite_", 7)!=0 ) return 0; + zLegacy = pTab->zName; + if( strcmp(zLegacy+7, &LEGACY_TEMP_SCHEMA_TABLE[7])==0 ){ + if( sqlite3StrICmp(zTab+7, &PREFERRED_TEMP_SCHEMA_TABLE[7])==0 ){ + return 1; + } + if( pSchema==0 ) return 0; + if( sqlite3StrICmp(zTab+7, &LEGACY_SCHEMA_TABLE[7])==0 ) return 1; + if( sqlite3StrICmp(zTab+7, &PREFERRED_SCHEMA_TABLE[7])==0 ) return 1; + }else{ + if( sqlite3StrICmp(zTab+7, &PREFERRED_SCHEMA_TABLE[7])==0 ) return 1; + } + return 0; +} + +/* ** Given the name of a column of the form X.Y.Z or Y.Z or just Z, look up ** that name in the set of source tables in pSrcList and make the pExpr ** expression node refer back to that source column. The following changes @@ -100671,7 +106416,7 @@ static int lookupName( ){ int i, j; /* Loop counters */ int cnt = 0; /* Number of matching column names */ - int cntTab = 0; /* Number of matching table names */ + int cntTab = 0; /* Number of potential "rowid" matches */ int nSubquery = 0; /* How many levels of subquery */ sqlite3 *db = pParse->db; /* The database connection */ SrcItem *pItem; /* Use for looping over pSrcList items */ @@ -100679,11 +106424,13 @@ static int lookupName( NameContext *pTopNC = pNC; /* First namecontext in the list */ Schema *pSchema = 0; /* Schema of the expression */ int eNewExprOp = TK_COLUMN; /* New value for pExpr->op on success */ - Table *pTab = 0; /* Table hold the row */ + Table *pTab = 0; /* Table holding the row */ Column *pCol; /* A column of pTab */ + ExprList *pFJMatch = 0; /* Matches for FULL JOIN .. USING */ assert( pNC ); /* the name context cannot be NULL. */ assert( zCol ); /* The Z in X.Y.Z cannot be NULL */ + assert( zDb==0 || zTab!=0 ); assert( !ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced) ); /* Initialize the node to no-match */ @@ -100732,29 +106479,80 @@ static int lookupName( pTab = pItem->pTab; assert( pTab!=0 && pTab->zName!=0 ); assert( pTab->nCol>0 || pParse->nErr ); - if( pItem->pSelect && (pItem->pSelect->selFlags & SF_NestedFrom)!=0 ){ + assert( (int)pItem->fg.isNestedFrom == IsNestedFrom(pItem->pSelect) ); + if( pItem->fg.isNestedFrom ){ + /* In this case, pItem is a subquery that has been formed from a + ** parenthesized subset of the FROM clause terms. Example: + ** .... FROM t1 LEFT JOIN (t2 RIGHT JOIN t3 USING(x)) USING(y) ... + ** \_________________________/ + ** This pItem -------------^ + */ int hit = 0; + assert( pItem->pSelect!=0 ); pEList = pItem->pSelect->pEList; + assert( pEList!=0 ); + assert( pEList->nExpr==pTab->nCol ); for(j=0; j<pEList->nExpr; j++){ - if( sqlite3MatchEName(&pEList->a[j], zCol, zTab, zDb) ){ + int bRowid = 0; /* True if possible rowid match */ + if( !sqlite3MatchEName(&pEList->a[j], zCol, zTab, zDb, &bRowid) ){ + continue; + } + if( bRowid==0 ){ + if( cnt>0 ){ + if( pItem->fg.isUsing==0 + || sqlite3IdListIndex(pItem->u3.pUsing, zCol)<0 + ){ + /* Two or more tables have the same column name which is + ** not joined by USING. This is an error. Signal as much + ** by clearing pFJMatch and letting cnt go above 1. */ + sqlite3ExprListDelete(db, pFJMatch); + pFJMatch = 0; + }else + if( (pItem->fg.jointype & JT_RIGHT)==0 ){ + /* An INNER or LEFT JOIN. Use the left-most table */ + continue; + }else + if( (pItem->fg.jointype & JT_LEFT)==0 ){ + /* A RIGHT JOIN. Use the right-most table */ + cnt = 0; + sqlite3ExprListDelete(db, pFJMatch); + pFJMatch = 0; + }else{ + /* For a FULL JOIN, we must construct a coalesce() func */ + extendFJMatch(pParse, &pFJMatch, pMatch, pExpr->iColumn); + } + } cnt++; - cntTab = 2; - pMatch = pItem; - pExpr->iColumn = j; hit = 1; + }else if( cnt>0 ){ + /* This is a potential rowid match, but there has already been + ** a real match found. So this can be ignored. */ + continue; } + cntTab++; + pMatch = pItem; + pExpr->iColumn = j; + pEList->a[j].fg.bUsed = 1; + + /* rowid cannot be part of a USING clause - assert() this. */ + assert( bRowid==0 || pEList->a[j].fg.bUsingTerm==0 ); + if( pEList->a[j].fg.bUsingTerm ) break; } if( hit || zTab==0 ) continue; } - if( zDb ){ - if( pTab->pSchema!=pSchema ) continue; - if( pSchema==0 && strcmp(zDb,"*")!=0 ) continue; - } + assert( zDb==0 || zTab!=0 ); if( zTab ){ - const char *zTabName = pItem->zAlias ? pItem->zAlias : pTab->zName; - assert( zTabName!=0 ); - if( sqlite3StrICmp(zTabName, zTab)!=0 ){ - continue; + if( zDb ){ + if( pTab->pSchema!=pSchema ) continue; + if( pSchema==0 && strcmp(zDb,"*")!=0 ) continue; + } + if( pItem->zAlias!=0 ){ + if( sqlite3StrICmp(zTab, pItem->zAlias)!=0 ){ + continue; + } + }else if( sqlite3StrICmp(zTab, pTab->zName)!=0 ){ + if( pTab->tnum!=1 ) continue; + if( !isValidSchemaTableName(zTab, pTab, pSchema) ) continue; } assert( ExprUseYTab(pExpr) ); if( IN_RENAME_OBJECT && pItem->zAlias ){ @@ -100766,18 +106564,37 @@ static int lookupName( if( pCol->hName==hCol && sqlite3StrICmp(pCol->zCnName, zCol)==0 ){ - /* If there has been exactly one prior match and this match - ** is for the right-hand table of a NATURAL JOIN or is in a - ** USING clause, then skip this match. - */ - if( cnt==1 ){ - if( pItem->fg.jointype & JT_NATURAL ) continue; - if( nameInUsingClause(pItem->pUsing, zCol) ) continue; + if( cnt>0 ){ + if( pItem->fg.isUsing==0 + || sqlite3IdListIndex(pItem->u3.pUsing, zCol)<0 + ){ + /* Two or more tables have the same column name which is + ** not joined by USING. This is an error. Signal as much + ** by clearing pFJMatch and letting cnt go above 1. */ + sqlite3ExprListDelete(db, pFJMatch); + pFJMatch = 0; + }else + if( (pItem->fg.jointype & JT_RIGHT)==0 ){ + /* An INNER or LEFT JOIN. Use the left-most table */ + continue; + }else + if( (pItem->fg.jointype & JT_LEFT)==0 ){ + /* A RIGHT JOIN. Use the right-most table */ + cnt = 0; + sqlite3ExprListDelete(db, pFJMatch); + pFJMatch = 0; + }else{ + /* For a FULL JOIN, we must construct a coalesce() func */ + extendFJMatch(pParse, &pFJMatch, pMatch, pExpr->iColumn); + } } cnt++; pMatch = pItem; /* Substitute the rowid (column -1) for the INTEGER PRIMARY KEY */ pExpr->iColumn = j==pTab->iPKey ? -1 : (i16)j; + if( pItem->fg.isNestedFrom ){ + sqlite3SrcItemColumnUsed(pItem, j); + } break; } } @@ -100790,9 +106607,7 @@ static int lookupName( pExpr->iTable = pMatch->iCursor; assert( ExprUseYTab(pExpr) ); pExpr->y.pTab = pMatch->pTab; - /* RIGHT JOIN not (yet) supported */ - assert( (pMatch->fg.jointype & JT_RIGHT)==0 ); - if( (pMatch->fg.jointype & JT_LEFT)!=0 ){ + if( (pMatch->fg.jointype & (JT_LEFT|JT_LTORJ))!=0 ){ ExprSetProperty(pExpr, EP_CanBeNull); } pSchema = pExpr->y.pTab->pSchema; @@ -100813,7 +106628,8 @@ static int lookupName( assert( op==TK_DELETE || op==TK_UPDATE || op==TK_INSERT ); if( pParse->bReturning ){ if( (pNC->ncFlags & NC_UBaseReg)!=0 - && (zTab==0 || sqlite3StrICmp(zTab,pParse->pTriggerTab->zName)==0) + && ALWAYS(zTab==0 + || sqlite3StrICmp(zTab,pParse->pTriggerTab->zName)==0) ){ pExpr->iTable = op!=TK_DELETE; pTab = pParse->pTriggerTab; @@ -100880,6 +106696,7 @@ static int lookupName( if( pParse->bReturning ){ eNewExprOp = TK_REGISTER; pExpr->op2 = TK_COLUMN; + pExpr->iColumn = iCol; pExpr->iTable = pNC->uNC.iBaseReg + (pTab->nCol+1)*pExpr->iTable + sqlite3TableColumnToStorage(pTab, iCol) + 1; }else{ @@ -100913,10 +106730,10 @@ static int lookupName( && pMatch && (pNC->ncFlags & (NC_IdxExpr|NC_GenCol))==0 && sqlite3IsRowid(zCol) - && ALWAYS(VisibleRowid(pMatch->pTab)) + && ALWAYS(VisibleRowid(pMatch->pTab) || pMatch->fg.isNestedFrom) ){ cnt = 1; - pExpr->iColumn = -1; + if( pMatch->fg.isNestedFrom==0 ) pExpr->iColumn = -1; pExpr->affExpr = SQLITE_AFF_INTEGER; } @@ -100946,7 +106763,7 @@ static int lookupName( assert( pEList!=0 ); for(j=0; j<pEList->nExpr; j++){ char *zAs = pEList->a[j].zEName; - if( pEList->a[j].eEName==ENAME_NAME + if( pEList->a[j].fg.eEName==ENAME_NAME && sqlite3_stricmp(zAs, zCol)==0 ){ Expr *pOrig; @@ -101033,11 +106850,37 @@ static int lookupName( } /* - ** cnt==0 means there was not match. cnt>1 means there were two or - ** more matches. Either way, we have an error. + ** cnt==0 means there was not match. + ** cnt>1 means there were two or more matches. + ** + ** cnt==0 is always an error. cnt>1 is often an error, but might + ** be multiple matches for a NATURAL LEFT JOIN or a LEFT JOIN USING. */ + assert( pFJMatch==0 || cnt>0 ); + assert( !ExprHasProperty(pExpr, EP_xIsSelect|EP_IntValue) ); if( cnt!=1 ){ const char *zErr; + if( pFJMatch ){ + if( pFJMatch->nExpr==cnt-1 ){ + if( ExprHasProperty(pExpr,EP_Leaf) ){ + ExprClearProperty(pExpr,EP_Leaf); + }else{ + sqlite3ExprDelete(db, pExpr->pLeft); + pExpr->pLeft = 0; + sqlite3ExprDelete(db, pExpr->pRight); + pExpr->pRight = 0; + } + extendFJMatch(pParse, &pFJMatch, pMatch, pExpr->iColumn); + pExpr->op = TK_FUNCTION; + pExpr->u.zToken = "coalesce"; + pExpr->x.pList = pFJMatch; + cnt = 1; + goto lookupname_end; + }else{ + sqlite3ExprListDelete(db, pFJMatch); + pFJMatch = 0; + } + } zErr = cnt==0 ? "no such column" : "ambiguous column name"; if( zDb ){ sqlite3ErrorMsg(pParse, "%s: %s.%s.%s", zErr, zDb, zTab, zCol); @@ -101049,6 +106892,17 @@ static int lookupName( sqlite3RecordErrorOffsetOfExpr(pParse->db, pExpr); pParse->checkSchema = 1; pTopNC->nNcErr++; + eNewExprOp = TK_NULL; + } + assert( pFJMatch==0 ); + + /* Remove all substructure from pExpr */ + if( !ExprHasProperty(pExpr,(EP_TokenOnly|EP_Leaf)) ){ + sqlite3ExprDelete(db, pExpr->pLeft); + pExpr->pLeft = 0; + sqlite3ExprDelete(db, pExpr->pRight); + pExpr->pRight = 0; + ExprSetProperty(pExpr, EP_Leaf); } /* If a column from a table in pSrcList is referenced, then record @@ -101065,20 +106919,11 @@ static int lookupName( ** If a generated column is referenced, set bits for every column ** of the table. */ - if( pExpr->iColumn>=0 && pMatch!=0 ){ + if( pExpr->iColumn>=0 && cnt==1 && pMatch!=0 ){ pMatch->colUsed |= sqlite3ExprColUsed(pExpr); } - /* Clean up and return - */ - if( !ExprHasProperty(pExpr,(EP_TokenOnly|EP_Leaf)) ){ - sqlite3ExprDelete(db, pExpr->pLeft); - pExpr->pLeft = 0; - sqlite3ExprDelete(db, pExpr->pRight); - pExpr->pRight = 0; - } pExpr->op = eNewExprOp; - ExprSetProperty(pExpr, EP_Leaf); lookupname_end: if( cnt==1 ){ assert( pNC!=0 ); @@ -101263,16 +107108,12 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){ } sqlite3WalkExpr(pWalker, pExpr->pLeft); if( 0==sqlite3ExprCanBeNull(pExpr->pLeft) && !IN_RENAME_OBJECT ){ - testcase( ExprHasProperty(pExpr, EP_FromJoin) ); + testcase( ExprHasProperty(pExpr, EP_OuterON) ); assert( !ExprHasProperty(pExpr, EP_IntValue) ); - if( pExpr->op==TK_NOTNULL ){ - pExpr->u.zToken = "true"; - ExprSetProperty(pExpr, EP_IsTrue); - }else{ - pExpr->u.zToken = "false"; - ExprSetProperty(pExpr, EP_IsFalse); - } - pExpr->op = TK_TRUEFALSE; + pExpr->u.iValue = (pExpr->op==TK_NOTNULL); + pExpr->flags |= EP_IntValue; + pExpr->op = TK_INTEGER; + for(i=0, p=pNC; p && i<ArraySize(anRef); p=p->pNext, i++){ p->nRef = anRef[i]; } @@ -101346,6 +107187,7 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){ Window *pWin = (IsWindowFunc(pExpr) ? pExpr->y.pWin : 0); #endif assert( !ExprHasProperty(pExpr, EP_xIsSelect|EP_IntValue) ); + assert( pExpr->pLeft==0 || pExpr->pLeft->op==TK_ORDER ); zId = pExpr->u.zToken; pDef = sqlite3FindFunction(pParse->db, zId, n, enc, 0); if( pDef==0 ){ @@ -101487,6 +107329,10 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){ pNC->nNcErr++; } #endif + else if( is_agg==0 && pExpr->pLeft ){ + sqlite3ExprOrderByAggregateError(pParse, pExpr); + pNC->nNcErr++; + } if( is_agg ){ /* Window functions may not be arguments of aggregate functions. ** Or arguments of other window functions. But aggregate functions @@ -101505,6 +107351,11 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){ #endif sqlite3WalkExprList(pWalker, pList); if( is_agg ){ + if( pExpr->pLeft ){ + assert( pExpr->pLeft->op==TK_ORDER ); + assert( ExprUseXList(pExpr->pLeft) ); + sqlite3WalkExprList(pWalker, pExpr->pLeft->x.pList); + } #ifndef SQLITE_OMIT_WINDOWFUNC if( pWin ){ Select *pSel = pNC->pWinSelect; @@ -101533,11 +107384,12 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){ while( pNC2 && sqlite3ReferencesSrcList(pParse, pExpr, pNC2->pSrcList)==0 ){ - pExpr->op2++; + pExpr->op2 += (1 + pNC2->nNestedSelect); pNC2 = pNC2->pNext; } assert( pDef!=0 || IN_RENAME_OBJECT ); if( pNC2 && pDef ){ + pExpr->op2 += pNC2->nNestedSelect; assert( SQLITE_FUNC_MINMAX==NC_MinMaxAgg ); assert( SQLITE_FUNC_ANYORDER==NC_OrderAgg ); testcase( (pDef->funcFlags & SQLITE_FUNC_MINMAX)!=0 ); @@ -101574,8 +107426,8 @@ static int resolveExprStep(Walker *pWalker, Expr *pExpr){ assert( pNC->nRef>=nRef ); if( nRef!=pNC->nRef ){ ExprSetProperty(pExpr, EP_VarSelect); - pNC->ncFlags |= NC_VarSelect; } + pNC->ncFlags |= NC_Subquery; } break; } @@ -101672,7 +107524,7 @@ static int resolveAsName( assert( !ExprHasProperty(pE, EP_IntValue) ); zCol = pE->u.zToken; for(i=0; i<pEList->nExpr; i++){ - if( pEList->a[i].eEName==ENAME_NAME + if( pEList->a[i].fg.eEName==ENAME_NAME && sqlite3_stricmp(pEList->a[i].zEName, zCol)==0 ){ return i+1; @@ -101793,7 +107645,7 @@ static int resolveCompoundOrderBy( return 1; } for(i=0; i<pOrderBy->nExpr; i++){ - pOrderBy->a[i].done = 0; + pOrderBy->a[i].fg.done = 0; } pSelect->pNext = 0; while( pSelect->pPrior ){ @@ -101808,7 +107660,7 @@ static int resolveCompoundOrderBy( for(i=0, pItem=pOrderBy->a; i<pOrderBy->nExpr; i++, pItem++){ int iCol = -1; Expr *pE, *pDup; - if( pItem->done ) continue; + if( pItem->fg.done ) continue; pE = sqlite3ExprSkipCollateAndLikely(pItem->pExpr); if( NEVER(pE==0) ) continue; if( sqlite3ExprIsInteger(pE, &iCol) ){ @@ -101861,7 +107713,7 @@ static int resolveCompoundOrderBy( sqlite3ExprDelete(db, pE); pItem->u.x.iOrderByCol = (u16)iCol; } - pItem->done = 1; + pItem->fg.done = 1; }else{ moreToDo = 1; } @@ -101869,7 +107721,7 @@ static int resolveCompoundOrderBy( pSelect = pSelect->pNext; } for(i=0; i<pOrderBy->nExpr; i++){ - if( pOrderBy->a[i].done==0 ){ + if( pOrderBy->a[i].fg.done==0 ){ sqlite3ErrorMsg(pParse, "%r ORDER BY term does not match any " "column in the result set", i+1); return 1; @@ -102015,7 +107867,7 @@ static int resolveOrderGroupBy( } for(j=0; j<pSelect->pEList->nExpr; j++){ if( sqlite3ExprCompare(0, pE, pSelect->pEList->a[j].pExpr, -1)==0 ){ - /* Since this expresion is being changed into a reference + /* Since this expression is being changed into a reference ** to an identical expression in the result set, remove all Window ** objects belonging to the expression from the Select.pWin list. */ windowRemoveExprFromSelect(pSelect, pE); @@ -102068,10 +107920,8 @@ static int resolveSelectStep(Walker *pWalker, Select *p){ while( p ){ assert( (p->selFlags & SF_Expanded)!=0 ); assert( (p->selFlags & SF_Resolved)==0 ); - assert( db->suppressErr==0 ); /* SF_Resolved not set if errors suppressed */ p->selFlags |= SF_Resolved; - /* Resolve the expressions in the LIMIT and OFFSET clauses. These ** are not allowed to refer to any names, so pass an empty NameContext. */ @@ -102098,6 +107948,7 @@ static int resolveSelectStep(Walker *pWalker, Select *p){ /* Recursively resolve names in all subqueries in the FROM clause */ + if( pOuterNC ) pOuterNC->nNestedSelect++; for(i=0; i<p->pSrc->nSrc; i++){ SrcItem *pItem = &p->pSrc->a[i]; if( pItem->pSelect && (pItem->pSelect->selFlags & SF_Resolved)==0 ){ @@ -102122,6 +107973,9 @@ static int resolveSelectStep(Walker *pWalker, Select *p){ } } } + if( pOuterNC && ALWAYS(pOuterNC->nNestedSelect>0) ){ + pOuterNC->nNestedSelect--; + } /* Set up the local name-context to pass to sqlite3ResolveExprNames() to ** resolve the result-set expression list. @@ -102159,8 +108013,8 @@ static int resolveSelectStep(Walker *pWalker, Select *p){ sNC.uNC.pEList = p->pEList; sNC.ncFlags |= NC_UEList; if( p->pHaving ){ - if( !pGroupBy ){ - sqlite3ErrorMsg(pParse, "a GROUP BY clause is required before HAVING"); + if( (p->selFlags & SF_Aggregate)==0 ){ + sqlite3ErrorMsg(pParse, "HAVING clause on a non-aggregate query"); return WRC_Abort; } if( sqlite3ResolveExprNames(&sNC, p->pHaving) ) return WRC_Abort; @@ -102338,7 +108192,8 @@ SQLITE_PRIVATE int sqlite3ResolveExprNames( return SQLITE_ERROR; } #endif - sqlite3WalkExpr(&w, pExpr); + assert( pExpr!=0 ); + sqlite3WalkExprNN(&w, pExpr); #if SQLITE_MAX_EXPR_DEPTH>0 w.pParse->nHeight -= pExpr->nHeight; #endif @@ -102380,7 +108235,7 @@ SQLITE_PRIVATE int sqlite3ResolveExprListNames( return WRC_Abort; } #endif - sqlite3WalkExpr(&w, pExpr); + sqlite3WalkExprNN(&w, pExpr); #if SQLITE_MAX_EXPR_DEPTH>0 w.pParse->nHeight -= pExpr->nHeight; #endif @@ -102402,7 +108257,7 @@ SQLITE_PRIVATE int sqlite3ResolveExprListNames( /* ** Resolve all names in all expressions of a SELECT and in all -** decendents of the SELECT, including compounds off of p->pPrior, +** descendants of the SELECT, including compounds off of p->pPrior, ** subqueries in expressions, and subqueries used as FROM clause ** terms. ** @@ -102529,50 +108384,123 @@ SQLITE_PRIVATE char sqlite3TableColumnAffinity(const Table *pTab, int iCol){ */ SQLITE_PRIVATE char sqlite3ExprAffinity(const Expr *pExpr){ int op; - while( ExprHasProperty(pExpr, EP_Skip|EP_IfNullRow) ){ - assert( pExpr->op==TK_COLLATE - || pExpr->op==TK_IF_NULL_ROW - || (pExpr->op==TK_REGISTER && pExpr->op2==TK_IF_NULL_ROW) ); - pExpr = pExpr->pLeft; - assert( pExpr!=0 ); - } op = pExpr->op; - if( op==TK_REGISTER ) op = pExpr->op2; - if( op==TK_COLUMN || op==TK_AGG_COLUMN ){ - assert( ExprUseYTab(pExpr) ); - if( pExpr->y.pTab ){ + while( 1 /* exit-by-break */ ){ + if( op==TK_COLUMN || (op==TK_AGG_COLUMN && pExpr->y.pTab!=0) ){ + assert( ExprUseYTab(pExpr) ); + assert( pExpr->y.pTab!=0 ); return sqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn); } - } - if( op==TK_SELECT ){ - assert( ExprUseXSelect(pExpr) ); - assert( pExpr->x.pSelect!=0 ); - assert( pExpr->x.pSelect->pEList!=0 ); - assert( pExpr->x.pSelect->pEList->a[0].pExpr!=0 ); - return sqlite3ExprAffinity(pExpr->x.pSelect->pEList->a[0].pExpr); - } + if( op==TK_SELECT ){ + assert( ExprUseXSelect(pExpr) ); + assert( pExpr->x.pSelect!=0 ); + assert( pExpr->x.pSelect->pEList!=0 ); + assert( pExpr->x.pSelect->pEList->a[0].pExpr!=0 ); + return sqlite3ExprAffinity(pExpr->x.pSelect->pEList->a[0].pExpr); + } #ifndef SQLITE_OMIT_CAST - if( op==TK_CAST ){ - assert( !ExprHasProperty(pExpr, EP_IntValue) ); - return sqlite3AffinityType(pExpr->u.zToken, 0); - } + if( op==TK_CAST ){ + assert( !ExprHasProperty(pExpr, EP_IntValue) ); + return sqlite3AffinityType(pExpr->u.zToken, 0); + } #endif - if( op==TK_SELECT_COLUMN ){ - assert( pExpr->pLeft!=0 && ExprUseXSelect(pExpr->pLeft) ); - assert( pExpr->iColumn < pExpr->iTable ); - assert( pExpr->iTable==pExpr->pLeft->x.pSelect->pEList->nExpr ); - return sqlite3ExprAffinity( - pExpr->pLeft->x.pSelect->pEList->a[pExpr->iColumn].pExpr - ); - } - if( op==TK_VECTOR ){ - assert( ExprUseXList(pExpr) ); - return sqlite3ExprAffinity(pExpr->x.pList->a[0].pExpr); + if( op==TK_SELECT_COLUMN ){ + assert( pExpr->pLeft!=0 && ExprUseXSelect(pExpr->pLeft) ); + assert( pExpr->iColumn < pExpr->iTable ); + assert( pExpr->iColumn >= 0 ); + assert( pExpr->iTable==pExpr->pLeft->x.pSelect->pEList->nExpr ); + return sqlite3ExprAffinity( + pExpr->pLeft->x.pSelect->pEList->a[pExpr->iColumn].pExpr + ); + } + if( op==TK_VECTOR ){ + assert( ExprUseXList(pExpr) ); + return sqlite3ExprAffinity(pExpr->x.pList->a[0].pExpr); + } + if( ExprHasProperty(pExpr, EP_Skip|EP_IfNullRow) ){ + assert( pExpr->op==TK_COLLATE + || pExpr->op==TK_IF_NULL_ROW + || (pExpr->op==TK_REGISTER && pExpr->op2==TK_IF_NULL_ROW) ); + pExpr = pExpr->pLeft; + op = pExpr->op; + continue; + } + if( op!=TK_REGISTER || (op = pExpr->op2)==TK_REGISTER ) break; } return pExpr->affExpr; } /* +** Make a guess at all the possible datatypes of the result that could +** be returned by an expression. Return a bitmask indicating the answer: +** +** 0x01 Numeric +** 0x02 Text +** 0x04 Blob +** +** If the expression must return NULL, then 0x00 is returned. +*/ +SQLITE_PRIVATE int sqlite3ExprDataType(const Expr *pExpr){ + while( pExpr ){ + switch( pExpr->op ){ + case TK_COLLATE: + case TK_IF_NULL_ROW: + case TK_UPLUS: { + pExpr = pExpr->pLeft; + break; + } + case TK_NULL: { + pExpr = 0; + break; + } + case TK_STRING: { + return 0x02; + } + case TK_BLOB: { + return 0x04; + } + case TK_CONCAT: { + return 0x06; + } + case TK_VARIABLE: + case TK_AGG_FUNCTION: + case TK_FUNCTION: { + return 0x07; + } + case TK_COLUMN: + case TK_AGG_COLUMN: + case TK_SELECT: + case TK_CAST: + case TK_SELECT_COLUMN: + case TK_VECTOR: { + int aff = sqlite3ExprAffinity(pExpr); + if( aff>=SQLITE_AFF_NUMERIC ) return 0x05; + if( aff==SQLITE_AFF_TEXT ) return 0x06; + return 0x07; + } + case TK_CASE: { + int res = 0; + int ii; + ExprList *pList = pExpr->x.pList; + assert( ExprUseXList(pExpr) && pList!=0 ); + assert( pList->nExpr > 0); + for(ii=1; ii<pList->nExpr; ii+=2){ + res |= sqlite3ExprDataType(pList->a[ii].pExpr); + } + if( pList->nExpr % 2 ){ + res |= sqlite3ExprDataType(pList->a[pList->nExpr-1].pExpr); + } + return res; + } + default: { + return 0x01; + } + } /* End of switch(op) */ + } /* End of while(pExpr) */ + return 0x00; +} + +/* ** Set the collating sequence for expression pExpr to be the collating ** sequence named by pToken. Return a pointer to a new Expr node that ** implements the COLLATE operator. @@ -102659,18 +108587,17 @@ SQLITE_PRIVATE CollSeq *sqlite3ExprCollSeq(Parse *pParse, const Expr *pExpr){ while( p ){ int op = p->op; if( op==TK_REGISTER ) op = p->op2; - if( op==TK_AGG_COLUMN || op==TK_COLUMN || op==TK_TRIGGER ){ + if( (op==TK_AGG_COLUMN && p->y.pTab!=0) + || op==TK_COLUMN || op==TK_TRIGGER + ){ + int j; assert( ExprUseYTab(p) ); - if( p->y.pTab!=0 ){ - /* op==TK_REGISTER && p->y.pTab!=0 happens when pExpr was originally - ** a TK_COLUMN but was previously evaluated and cached in a register */ - int j = p->iColumn; - if( j>=0 ){ - const char *zColl = sqlite3ColumnColl(&p->y.pTab->aCol[j]); - pColl = sqlite3FindCollSeq(db, ENC(db), zColl, 0); - } - break; + assert( p->y.pTab!=0 ); + if( (j = p->iColumn)>=0 ){ + const char *zColl = sqlite3ColumnColl(&p->y.pTab->aCol[j]); + pColl = sqlite3FindCollSeq(db, ENC(db), zColl, 0); } + break; } if( op==TK_CAST || op==TK_UPLUS ){ p = p->pLeft; @@ -102692,11 +108619,10 @@ SQLITE_PRIVATE CollSeq *sqlite3ExprCollSeq(Parse *pParse, const Expr *pExpr){ }else{ Expr *pNext = p->pRight; /* The Expr.x union is never used at the same time as Expr.pRight */ - assert( ExprUseXList(p) ); - assert( p->x.pList==0 || p->pRight==0 ); - if( p->x.pList!=0 && !db->mallocFailed ){ + assert( !ExprUseXList(p) || p->x.pList==0 || p->pRight==0 ); + if( ExprUseXList(p) && p->x.pList!=0 && !db->mallocFailed ){ int i; - for(i=0; ALWAYS(i<p->x.pList->nExpr); i++){ + for(i=0; i<p->x.pList->nExpr; i++){ if( ExprHasProperty(p->x.pList->a[i].pExpr, EP_Collate) ){ pNext = p->x.pList->a[i].pExpr; break; @@ -102718,7 +108644,7 @@ SQLITE_PRIVATE CollSeq *sqlite3ExprCollSeq(Parse *pParse, const Expr *pExpr){ /* ** Return the collation sequence for the expression pExpr. If ** there is no defined collating sequence, return a pointer to the -** defautl collation sequence. +** default collation sequence. ** ** See also: sqlite3ExprCollSeq() ** @@ -102848,7 +108774,7 @@ SQLITE_PRIVATE CollSeq *sqlite3BinaryCompareCollSeq( return pColl; } -/* Expresssion p is a comparison operator. Return a collation sequence +/* Expression p is a comparison operator. Return a collation sequence ** appropriate for the comparison operator. ** ** This is normally just a wrapper around sqlite3BinaryCompareCollSeq(). @@ -103005,6 +108931,7 @@ SQLITE_PRIVATE Expr *sqlite3ExprForVectorField( */ pRet = sqlite3PExpr(pParse, TK_SELECT_COLUMN, 0, 0); if( pRet ){ + ExprSetProperty(pRet, EP_FullSize); pRet->iTable = nField; pRet->iColumn = iField; pRet->pLeft = pVector; @@ -103255,7 +109182,9 @@ static void heightOfSelect(const Select *pSelect, int *pnHeight){ */ static void exprSetHeight(Expr *p){ int nHeight = p->pLeft ? p->pLeft->nHeight : 0; - if( p->pRight && p->pRight->nHeight>nHeight ) nHeight = p->pRight->nHeight; + if( NEVER(p->pRight) && p->pRight->nHeight>nHeight ){ + nHeight = p->pRight->nHeight; + } if( ExprUseXSelect(p) ){ heightOfSelect(p->x.pSelect, &nHeight); }else if( p->x.pList ){ @@ -103303,6 +109232,15 @@ SQLITE_PRIVATE void sqlite3ExprSetHeightAndFlags(Parse *pParse, Expr *p){ #endif /* SQLITE_MAX_EXPR_DEPTH>0 */ /* +** Set the error offset for an Expr node, if possible. +*/ +SQLITE_PRIVATE void sqlite3ExprSetErrorOffset(Expr *pExpr, int iOfst){ + if( pExpr==0 ) return; + if( NEVER(ExprUseWJoin(pExpr)) ) return; + pExpr->w.iOfst = iOfst; +} + +/* ** This routine is the core allocator for Expr nodes. ** ** Construct a new expression node and return a pointer to it. Memory @@ -103398,15 +109336,26 @@ SQLITE_PRIVATE void sqlite3ExprAttachSubtrees( sqlite3ExprDelete(db, pLeft); sqlite3ExprDelete(db, pRight); }else{ + assert( ExprUseXList(pRoot) ); + assert( pRoot->x.pSelect==0 ); if( pRight ){ pRoot->pRight = pRight; pRoot->flags |= EP_Propagate & pRight->flags; +#if SQLITE_MAX_EXPR_DEPTH>0 + pRoot->nHeight = pRight->nHeight+1; + }else{ + pRoot->nHeight = 1; +#endif } if( pLeft ){ pRoot->pLeft = pLeft; pRoot->flags |= EP_Propagate & pLeft->flags; +#if SQLITE_MAX_EXPR_DEPTH>0 + if( pLeft->nHeight>=pRoot->nHeight ){ + pRoot->nHeight = pLeft->nHeight+1; + } +#endif } - exprSetHeight(pRoot); } } @@ -103515,9 +109464,9 @@ SQLITE_PRIVATE Select *sqlite3ExprListToValues(Parse *pParse, int nElem, ExprLis ** Join two expressions using an AND operator. If either expression is ** NULL, then just return the other expression. ** -** If one side or the other of the AND is known to be false, then instead -** of returning an AND expression, just return a constant expression with -** a value of false. +** If one side or the other of the AND is known to be false, and neither side +** is part of an ON clause, then instead of returning an AND expression, +** just return a constant expression with a value of false. */ SQLITE_PRIVATE Expr *sqlite3ExprAnd(Parse *pParse, Expr *pLeft, Expr *pRight){ sqlite3 *db = pParse->db; @@ -103525,14 +109474,17 @@ SQLITE_PRIVATE Expr *sqlite3ExprAnd(Parse *pParse, Expr *pLeft, Expr *pRight){ return pRight; }else if( pRight==0 ){ return pLeft; - }else if( (ExprAlwaysFalse(pLeft) || ExprAlwaysFalse(pRight)) - && !IN_RENAME_OBJECT - ){ - sqlite3ExprDeferredDelete(pParse, pLeft); - sqlite3ExprDeferredDelete(pParse, pRight); - return sqlite3Expr(db, TK_INTEGER, "0"); }else{ - return sqlite3PExpr(pParse, TK_AND, pLeft, pRight); + u32 f = pLeft->flags | pRight->flags; + if( (f&(EP_OuterON|EP_InnerON|EP_IsFalse))==EP_IsFalse + && !IN_RENAME_OBJECT + ){ + sqlite3ExprDeferredDelete(pParse, pLeft); + sqlite3ExprDeferredDelete(pParse, pRight); + return sqlite3Expr(db, TK_INTEGER, "0"); + }else{ + return sqlite3PExpr(pParse, TK_AND, pLeft, pRight); + } } } @@ -103554,6 +109506,7 @@ SQLITE_PRIVATE Expr *sqlite3ExprFunction( sqlite3ExprListDelete(db, pList); /* Avoid memory leak when malloc fails */ return 0; } + assert( !ExprHasProperty(pNew, EP_InnerON|EP_OuterON) ); pNew->w.iOfst = (int)(pToken->z - pParse->zTail); if( pList && pList->nExpr > pParse->db->aLimit[SQLITE_LIMIT_FUNCTION_ARG] @@ -103570,6 +109523,67 @@ SQLITE_PRIVATE Expr *sqlite3ExprFunction( } /* +** Report an error when attempting to use an ORDER BY clause within +** the arguments of a non-aggregate function. +*/ +SQLITE_PRIVATE void sqlite3ExprOrderByAggregateError(Parse *pParse, Expr *p){ + sqlite3ErrorMsg(pParse, + "ORDER BY may not be used with non-aggregate %#T()", p + ); +} + +/* +** Attach an ORDER BY clause to a function call. +** +** functionname( arguments ORDER BY sortlist ) +** \_____________________/ \______/ +** pExpr pOrderBy +** +** The ORDER BY clause is inserted into a new Expr node of type TK_ORDER +** and added to the Expr.pLeft field of the parent TK_FUNCTION node. +*/ +SQLITE_PRIVATE void sqlite3ExprAddFunctionOrderBy( + Parse *pParse, /* Parsing context */ + Expr *pExpr, /* The function call to which ORDER BY is to be added */ + ExprList *pOrderBy /* The ORDER BY clause to add */ +){ + Expr *pOB; + sqlite3 *db = pParse->db; + if( NEVER(pOrderBy==0) ){ + assert( db->mallocFailed ); + return; + } + if( pExpr==0 ){ + assert( db->mallocFailed ); + sqlite3ExprListDelete(db, pOrderBy); + return; + } + assert( pExpr->op==TK_FUNCTION ); + assert( pExpr->pLeft==0 ); + assert( ExprUseXList(pExpr) ); + if( pExpr->x.pList==0 || NEVER(pExpr->x.pList->nExpr==0) ){ + /* Ignore ORDER BY on zero-argument aggregates */ + sqlite3ParserAddCleanup(pParse, sqlite3ExprListDeleteGeneric, pOrderBy); + return; + } + if( IsWindowFunc(pExpr) ){ + sqlite3ExprOrderByAggregateError(pParse, pExpr); + sqlite3ExprListDelete(db, pOrderBy); + return; + } + + pOB = sqlite3ExprAlloc(db, TK_ORDER, 0, 0); + if( pOB==0 ){ + sqlite3ExprListDelete(db, pOrderBy); + return; + } + pOB->x.pList = pOrderBy; + assert( ExprUseXList(pOB) ); + pExpr->pLeft = pOB; + ExprSetProperty(pOB, EP_FullSize); +} + +/* ** Check to see if a function is usable according to current access ** rules: ** @@ -103691,6 +109705,7 @@ SQLITE_PRIVATE void sqlite3ExprAssignVarNumber(Parse *pParse, Expr *pExpr, u32 n */ static SQLITE_NOINLINE void sqlite3ExprDeleteNN(sqlite3 *db, Expr *p){ assert( p!=0 ); + assert( db!=0 ); assert( !ExprUseUValue(p) || p->u.iValue>=0 ); assert( !ExprUseYWin(p) || !ExprUseYSub(p) ); assert( !ExprUseYWin(p) || p->y.pWin!=0 || db->mallocFailed ); @@ -103722,23 +109737,34 @@ static SQLITE_NOINLINE void sqlite3ExprDeleteNN(sqlite3 *db, Expr *p){ #endif } } - if( ExprHasProperty(p, EP_MemToken) ){ - assert( !ExprHasProperty(p, EP_IntValue) ); - sqlite3DbFree(db, p->u.zToken); - } if( !ExprHasProperty(p, EP_Static) ){ - sqlite3DbFreeNN(db, p); + sqlite3DbNNFreeNN(db, p); } } SQLITE_PRIVATE void sqlite3ExprDelete(sqlite3 *db, Expr *p){ if( p ) sqlite3ExprDeleteNN(db, p); } +SQLITE_PRIVATE void sqlite3ExprDeleteGeneric(sqlite3 *db, void *p){ + if( ALWAYS(p) ) sqlite3ExprDeleteNN(db, (Expr*)p); +} +/* +** Clear both elements of an OnOrUsing object +*/ +SQLITE_PRIVATE void sqlite3ClearOnOrUsing(sqlite3 *db, OnOrUsing *p){ + if( p==0 ){ + /* Nothing to clear */ + }else if( p->pOn ){ + sqlite3ExprDeleteNN(db, p->pOn); + }else if( p->pUsing ){ + sqlite3IdListDelete(db, p->pUsing); + } +} /* ** Arrange to cause pExpr to be deleted when the pParse is deleted. ** This is similar to sqlite3ExprDelete() except that the delete is -** deferred untilthe pParse is deleted. +** deferred until the pParse is deleted. ** ** The pExpr might be deleted immediately on an OOM error. ** @@ -103746,8 +109772,7 @@ SQLITE_PRIVATE void sqlite3ExprDelete(sqlite3 *db, Expr *p){ ** pExpr to the pParse->pConstExpr list with a register number of 0. */ SQLITE_PRIVATE void sqlite3ExprDeferredDelete(Parse *pParse, Expr *pExpr){ - pParse->pConstExpr = - sqlite3ExprListAppend(pParse, pParse->pConstExpr, pExpr); + sqlite3ParserAddCleanup(pParse, sqlite3ExprDeleteGeneric, pExpr); } /* Invoke sqlite3RenameExprUnmap() and sqlite3ExprDelete() on the @@ -103812,16 +109837,11 @@ static int dupedExprStructSize(const Expr *p, int flags){ assert( flags==EXPRDUP_REDUCE || flags==0 ); /* Only one flag value allowed */ assert( EXPR_FULLSIZE<=0xfff ); assert( (0xfff & (EP_Reduced|EP_TokenOnly))==0 ); - if( 0==flags || p->op==TK_SELECT_COLUMN -#ifndef SQLITE_OMIT_WINDOWFUNC - || ExprHasProperty(p, EP_WinFunc) -#endif - ){ + if( 0==flags || ExprHasProperty(p, EP_FullSize) ){ nSize = EXPR_FULLSIZE; }else{ assert( !ExprHasProperty(p, EP_TokenOnly|EP_Reduced) ); - assert( !ExprHasProperty(p, EP_FromJoin) ); - assert( !ExprHasProperty(p, EP_MemToken) ); + assert( !ExprHasProperty(p, EP_OuterON) ); assert( !ExprHasVVAProperty(p, EP_NoReduce) ); if( p->pLeft || p->x.pList ){ nSize = EXPR_REDUCEDSIZE | EP_Reduced; @@ -103848,56 +109868,93 @@ static int dupedExprNodeSize(const Expr *p, int flags){ /* ** Return the number of bytes required to create a duplicate of the -** expression passed as the first argument. The second argument is a -** mask containing EXPRDUP_XXX flags. +** expression passed as the first argument. ** ** The value returned includes space to create a copy of the Expr struct ** itself and the buffer referred to by Expr.u.zToken, if any. ** -** If the EXPRDUP_REDUCE flag is set, then the return value includes -** space to duplicate all Expr nodes in the tree formed by Expr.pLeft -** and Expr.pRight variables (but not for any structures pointed to or -** descended from the Expr.x.pList or Expr.x.pSelect variables). +** The return value includes space to duplicate all Expr nodes in the +** tree formed by Expr.pLeft and Expr.pRight, but not any other +** substructure such as Expr.x.pList, Expr.x.pSelect, and Expr.y.pWin. */ -static int dupedExprSize(const Expr *p, int flags){ - int nByte = 0; - if( p ){ - nByte = dupedExprNodeSize(p, flags); - if( flags&EXPRDUP_REDUCE ){ - nByte += dupedExprSize(p->pLeft, flags) + dupedExprSize(p->pRight, flags); - } - } +static int dupedExprSize(const Expr *p){ + int nByte; + assert( p!=0 ); + nByte = dupedExprNodeSize(p, EXPRDUP_REDUCE); + if( p->pLeft ) nByte += dupedExprSize(p->pLeft); + if( p->pRight ) nByte += dupedExprSize(p->pRight); + assert( nByte==ROUND8(nByte) ); return nByte; } /* -** This function is similar to sqlite3ExprDup(), except that if pzBuffer -** is not NULL then *pzBuffer is assumed to point to a buffer large enough -** to store the copy of expression p, the copies of p->u.zToken -** (if applicable), and the copies of the p->pLeft and p->pRight expressions, -** if any. Before returning, *pzBuffer is set to the first byte past the -** portion of the buffer copied into by this function. +** An EdupBuf is a memory allocation used to stored multiple Expr objects +** together with their Expr.zToken content. This is used to help implement +** compression while doing sqlite3ExprDup(). The top-level Expr does the +** allocation for itself and many of its decendents, then passes an instance +** of the structure down into exprDup() so that they decendents can have +** access to that memory. */ -static Expr *exprDup(sqlite3 *db, const Expr *p, int dupFlags, u8 **pzBuffer){ +typedef struct EdupBuf EdupBuf; +struct EdupBuf { + u8 *zAlloc; /* Memory space available for storage */ +#ifdef SQLITE_DEBUG + u8 *zEnd; /* First byte past the end of memory */ +#endif +}; + +/* +** This function is similar to sqlite3ExprDup(), except that if pEdupBuf +** is not NULL then it points to memory that can be used to store a copy +** of the input Expr p together with its p->u.zToken (if any). pEdupBuf +** is updated with the new buffer tail prior to returning. +*/ +static Expr *exprDup( + sqlite3 *db, /* Database connection (for memory allocation) */ + const Expr *p, /* Expr tree to be duplicated */ + int dupFlags, /* EXPRDUP_REDUCE for compression. 0 if not */ + EdupBuf *pEdupBuf /* Preallocated storage space, or NULL */ +){ Expr *pNew; /* Value to return */ - u8 *zAlloc; /* Memory space from which to build Expr object */ + EdupBuf sEdupBuf; /* Memory space from which to build Expr object */ u32 staticFlag; /* EP_Static if space not obtained from malloc */ + int nToken = -1; /* Space needed for p->u.zToken. -1 means unknown */ assert( db!=0 ); assert( p ); assert( dupFlags==0 || dupFlags==EXPRDUP_REDUCE ); - assert( pzBuffer==0 || dupFlags==EXPRDUP_REDUCE ); + assert( pEdupBuf==0 || dupFlags==EXPRDUP_REDUCE ); /* Figure out where to write the new Expr structure. */ - if( pzBuffer ){ - zAlloc = *pzBuffer; + if( pEdupBuf ){ + sEdupBuf.zAlloc = pEdupBuf->zAlloc; +#ifdef SQLITE_DEBUG + sEdupBuf.zEnd = pEdupBuf->zEnd; +#endif staticFlag = EP_Static; - assert( zAlloc!=0 ); + assert( sEdupBuf.zAlloc!=0 ); + assert( dupFlags==EXPRDUP_REDUCE ); }else{ - zAlloc = sqlite3DbMallocRawNN(db, dupedExprSize(p, dupFlags)); + int nAlloc; + if( dupFlags ){ + nAlloc = dupedExprSize(p); + }else if( !ExprHasProperty(p, EP_IntValue) && p->u.zToken ){ + nToken = sqlite3Strlen30NN(p->u.zToken)+1; + nAlloc = ROUND8(EXPR_FULLSIZE + nToken); + }else{ + nToken = 0; + nAlloc = ROUND8(EXPR_FULLSIZE); + } + assert( nAlloc==ROUND8(nAlloc) ); + sEdupBuf.zAlloc = sqlite3DbMallocRawNN(db, nAlloc); +#ifdef SQLITE_DEBUG + sEdupBuf.zEnd = sEdupBuf.zAlloc ? sEdupBuf.zAlloc+nAlloc : 0; +#endif + staticFlag = 0; } - pNew = (Expr *)zAlloc; + pNew = (Expr *)sEdupBuf.zAlloc; + assert( EIGHT_BYTE_ALIGNMENT(pNew) ); if( pNew ){ /* Set nNewSize to the size allocated for the structure pointed to @@ -103906,26 +109963,31 @@ static Expr *exprDup(sqlite3 *db, const Expr *p, int dupFlags, u8 **pzBuffer){ ** by the copy of the p->u.zToken string (if any). */ const unsigned nStructSize = dupedExprStructSize(p, dupFlags); - const int nNewSize = nStructSize & 0xfff; - int nToken; - if( !ExprHasProperty(p, EP_IntValue) && p->u.zToken ){ - nToken = sqlite3Strlen30(p->u.zToken) + 1; - }else{ - nToken = 0; + int nNewSize = nStructSize & 0xfff; + if( nToken<0 ){ + if( !ExprHasProperty(p, EP_IntValue) && p->u.zToken ){ + nToken = sqlite3Strlen30(p->u.zToken) + 1; + }else{ + nToken = 0; + } } if( dupFlags ){ + assert( (int)(sEdupBuf.zEnd - sEdupBuf.zAlloc) >= nNewSize+nToken ); assert( ExprHasProperty(p, EP_Reduced)==0 ); - memcpy(zAlloc, p, nNewSize); + memcpy(sEdupBuf.zAlloc, p, nNewSize); }else{ u32 nSize = (u32)exprStructSize(p); - memcpy(zAlloc, p, nSize); + assert( (int)(sEdupBuf.zEnd - sEdupBuf.zAlloc) >= + (int)EXPR_FULLSIZE+nToken ); + memcpy(sEdupBuf.zAlloc, p, nSize); if( nSize<EXPR_FULLSIZE ){ - memset(&zAlloc[nSize], 0, EXPR_FULLSIZE-nSize); + memset(&sEdupBuf.zAlloc[nSize], 0, EXPR_FULLSIZE-nSize); } + nNewSize = EXPR_FULLSIZE; } /* Set the EP_Reduced, EP_TokenOnly, and EP_Static flags appropriately. */ - pNew->flags &= ~(EP_Reduced|EP_TokenOnly|EP_Static|EP_MemToken); + pNew->flags &= ~(EP_Reduced|EP_TokenOnly|EP_Static); pNew->flags |= nStructSize & (EP_Reduced|EP_TokenOnly); pNew->flags |= staticFlag; ExprClearVVAProperties(pNew); @@ -103934,44 +109996,50 @@ static Expr *exprDup(sqlite3 *db, const Expr *p, int dupFlags, u8 **pzBuffer){ } /* Copy the p->u.zToken string, if any. */ - if( nToken ){ - char *zToken = pNew->u.zToken = (char*)&zAlloc[nNewSize]; + assert( nToken>=0 ); + if( nToken>0 ){ + char *zToken = pNew->u.zToken = (char*)&sEdupBuf.zAlloc[nNewSize]; memcpy(zToken, p->u.zToken, nToken); + nNewSize += nToken; } + sEdupBuf.zAlloc += ROUND8(nNewSize); + + if( ((p->flags|pNew->flags)&(EP_TokenOnly|EP_Leaf))==0 ){ - if( 0==((p->flags|pNew->flags) & (EP_TokenOnly|EP_Leaf)) ){ /* Fill in the pNew->x.pSelect or pNew->x.pList member. */ if( ExprUseXSelect(p) ){ pNew->x.pSelect = sqlite3SelectDup(db, p->x.pSelect, dupFlags); }else{ - pNew->x.pList = sqlite3ExprListDup(db, p->x.pList, dupFlags); + pNew->x.pList = sqlite3ExprListDup(db, p->x.pList, + p->op!=TK_ORDER ? dupFlags : 0); } - } - /* Fill in pNew->pLeft and pNew->pRight. */ - if( ExprHasProperty(pNew, EP_Reduced|EP_TokenOnly|EP_WinFunc) ){ - zAlloc += dupedExprNodeSize(p, dupFlags); - if( !ExprHasProperty(pNew, EP_TokenOnly|EP_Leaf) ){ - pNew->pLeft = p->pLeft ? - exprDup(db, p->pLeft, EXPRDUP_REDUCE, &zAlloc) : 0; - pNew->pRight = p->pRight ? - exprDup(db, p->pRight, EXPRDUP_REDUCE, &zAlloc) : 0; - } #ifndef SQLITE_OMIT_WINDOWFUNC if( ExprHasProperty(p, EP_WinFunc) ){ pNew->y.pWin = sqlite3WindowDup(db, pNew, p->y.pWin); assert( ExprHasProperty(pNew, EP_WinFunc) ); } #endif /* SQLITE_OMIT_WINDOWFUNC */ - if( pzBuffer ){ - *pzBuffer = zAlloc; - } - }else{ - if( !ExprHasProperty(p, EP_TokenOnly|EP_Leaf) ){ - if( pNew->op==TK_SELECT_COLUMN ){ + + /* Fill in pNew->pLeft and pNew->pRight. */ + if( dupFlags ){ + if( p->op==TK_SELECT_COLUMN ){ pNew->pLeft = p->pLeft; - assert( p->pRight==0 || p->pRight==p->pLeft - || ExprHasProperty(p->pLeft, EP_Subquery) ); + assert( p->pRight==0 + || p->pRight==p->pLeft + || ExprHasProperty(p->pLeft, EP_Subquery) ); + }else{ + pNew->pLeft = p->pLeft ? + exprDup(db, p->pLeft, EXPRDUP_REDUCE, &sEdupBuf) : 0; + } + pNew->pRight = p->pRight ? + exprDup(db, p->pRight, EXPRDUP_REDUCE, &sEdupBuf) : 0; + }else{ + if( p->op==TK_SELECT_COLUMN ){ + pNew->pLeft = p->pLeft; + assert( p->pRight==0 + || p->pRight==p->pLeft + || ExprHasProperty(p->pLeft, EP_Subquery) ); }else{ pNew->pLeft = sqlite3ExprDup(db, p->pLeft, 0); } @@ -103979,6 +110047,8 @@ static Expr *exprDup(sqlite3 *db, const Expr *p, int dupFlags, u8 **pzBuffer){ } } } + if( pEdupBuf ) memcpy(pEdupBuf, &sEdupBuf, sizeof(sEdupBuf)); + assert( sEdupBuf.zAlloc <= sEdupBuf.zEnd ); return pNew; } @@ -104000,6 +110070,7 @@ SQLITE_PRIVATE With *sqlite3WithDup(sqlite3 *db, With *p){ pRet->a[i].pSelect = sqlite3SelectDup(db, p->a[i].pSelect, 0); pRet->a[i].pCols = sqlite3ExprListDup(db, p->a[i].pCols, 0); pRet->a[i].zName = sqlite3DbStrDup(db, p->a[i].zName); + pRet->a[i].eM10d = p->a[i].eM10d; } } } @@ -104100,11 +110171,8 @@ SQLITE_PRIVATE ExprList *sqlite3ExprListDup(sqlite3 *db, const ExprList *p, int } } pItem->zEName = sqlite3DbStrDup(db, pOldItem->zEName); - pItem->sortFlags = pOldItem->sortFlags; - pItem->eEName = pOldItem->eEName; - pItem->done = 0; - pItem->bNulls = pOldItem->bNulls; - pItem->bSorterRef = pOldItem->bSorterRef; + pItem->fg = pOldItem->fg; + pItem->fg.done = 0; pItem->u = pOldItem->u; } return pNew; @@ -104156,8 +110224,12 @@ SQLITE_PRIVATE SrcList *sqlite3SrcListDup(sqlite3 *db, const SrcList *p, int fla pTab->nTabRef++; } pNewItem->pSelect = sqlite3SelectDup(db, pOldItem->pSelect, flags); - pNewItem->pOn = sqlite3ExprDup(db, pOldItem->pOn, flags); - pNewItem->pUsing = sqlite3IdListDup(db, pOldItem->pUsing); + if( pOldItem->fg.isUsing ){ + assert( pNewItem->fg.isUsing ); + pNewItem->u3.pUsing = sqlite3IdListDup(db, pOldItem->u3.pUsing); + }else{ + pNewItem->u3.pOn = sqlite3ExprDup(db, pOldItem->u3.pOn, flags); + } pNewItem->colUsed = pOldItem->colUsed; } return pNew; @@ -104167,22 +110239,16 @@ SQLITE_PRIVATE IdList *sqlite3IdListDup(sqlite3 *db, const IdList *p){ int i; assert( db!=0 ); if( p==0 ) return 0; - pNew = sqlite3DbMallocRawNN(db, sizeof(*pNew) ); + assert( p->eU4!=EU4_EXPR ); + pNew = sqlite3DbMallocRawNN(db, sizeof(*pNew)+(p->nId-1)*sizeof(p->a[0]) ); if( pNew==0 ) return 0; pNew->nId = p->nId; - pNew->a = sqlite3DbMallocRawNN(db, p->nId*sizeof(p->a[0]) ); - if( pNew->a==0 ){ - sqlite3DbFreeNN(db, pNew); - return 0; - } - /* Note that because the size of the allocation for p->a[] is not - ** necessarily a power of two, sqlite3IdListAppend() may not be called - ** on the duplicate created by this function. */ + pNew->eU4 = p->eU4; for(i=0; i<p->nId; i++){ struct IdList_item *pNewItem = &pNew->a[i]; - struct IdList_item *pOldItem = &p->a[i]; + const struct IdList_item *pOldItem = &p->a[i]; pNewItem->zName = sqlite3DbStrDup(db, pOldItem->zName); - pNewItem->idx = pOldItem->idx; + pNewItem->u4 = pOldItem->u4; } return pNew; } @@ -104247,11 +110313,7 @@ SQLITE_PRIVATE Select *sqlite3SelectDup(sqlite3 *db, const Select *p, int flags) ** initially NULL, then create a new expression list. ** ** The pList argument must be either NULL or a pointer to an ExprList -** obtained from a prior call to sqlite3ExprListAppend(). This routine -** may not be used with an ExprList obtained from sqlite3ExprListDup(). -** Reason: This routine assumes that the number of slots in pList->a[] -** is a power of two. That is true for sqlite3ExprListAppend() returns -** but is not necessarily true from the return value of sqlite3ExprListDup(). +** obtained from a prior call to sqlite3ExprListAppend(). ** ** If a memory allocation error occurs, the entire list is freed and ** NULL is returned. If non-NULL is returned, then it is guaranteed @@ -104406,16 +110468,16 @@ SQLITE_PRIVATE void sqlite3ExprListSetSortOrder(ExprList *p, int iSortOrder, int ); pItem = &p->a[p->nExpr-1]; - assert( pItem->bNulls==0 ); + assert( pItem->fg.bNulls==0 ); if( iSortOrder==SQLITE_SO_UNDEFINED ){ iSortOrder = SQLITE_SO_ASC; } - pItem->sortFlags = (u8)iSortOrder; + pItem->fg.sortFlags = (u8)iSortOrder; if( eNulls!=SQLITE_SO_UNDEFINED ){ - pItem->bNulls = 1; + pItem->fg.bNulls = 1; if( iSortOrder!=eNulls ){ - pItem->sortFlags |= KEYINFO_ORDER_BIGNULL; + pItem->fg.sortFlags |= KEYINFO_ORDER_BIGNULL; } } } @@ -104441,7 +110503,7 @@ SQLITE_PRIVATE void sqlite3ExprListSetName( assert( pList->nExpr>0 ); pItem = &pList->a[pList->nExpr-1]; assert( pItem->zEName==0 ); - assert( pItem->eEName==ENAME_NAME ); + assert( pItem->fg.eEName==ENAME_NAME ); pItem->zEName = sqlite3DbStrNDup(pParse->db, pName->z, pName->n); if( dequote ){ /* If dequote==0, then pName->z does not point to part of a DDL @@ -104476,7 +110538,7 @@ SQLITE_PRIVATE void sqlite3ExprListSetSpan( assert( pList->nExpr>0 ); if( pItem->zEName==0 ){ pItem->zEName = sqlite3DbSpanDup(db, zStart, zEnd); - pItem->eEName = ENAME_SPAN; + pItem->fg.eEName = ENAME_SPAN; } } } @@ -104505,16 +110567,20 @@ static SQLITE_NOINLINE void exprListDeleteNN(sqlite3 *db, ExprList *pList){ int i = pList->nExpr; struct ExprList_item *pItem = pList->a; assert( pList->nExpr>0 ); + assert( db!=0 ); do{ sqlite3ExprDelete(db, pItem->pExpr); - sqlite3DbFree(db, pItem->zEName); + if( pItem->zEName ) sqlite3DbNNFreeNN(db, pItem->zEName); pItem++; }while( --i>0 ); - sqlite3DbFreeNN(db, pList); + sqlite3DbNNFreeNN(db, pList); } SQLITE_PRIVATE void sqlite3ExprListDelete(sqlite3 *db, ExprList *pList){ if( pList ) exprListDeleteNN(db, pList); } +SQLITE_PRIVATE void sqlite3ExprListDeleteGeneric(sqlite3 *db, void *pList){ + if( ALWAYS(pList) ) exprListDeleteNN(db, (ExprList*)pList); +} /* ** Return the bitwise-OR of all Expr.flags fields in the given @@ -104583,7 +110649,7 @@ SQLITE_PRIVATE int sqlite3ExprIdToTrueFalse(Expr *pExpr){ ** and 0 if it is FALSE. */ SQLITE_PRIVATE int sqlite3ExprTruthValue(const Expr *pExpr){ - pExpr = sqlite3ExprSkipCollate((Expr*)pExpr); + pExpr = sqlite3ExprSkipCollateAndLikely((Expr*)pExpr); assert( pExpr->op==TK_TRUEFALSE ); assert( !ExprHasProperty(pExpr, EP_IntValue) ); assert( sqlite3StrICmp(pExpr->u.zToken,"true")==0 @@ -104648,9 +110714,9 @@ SQLITE_PRIVATE Expr *sqlite3ExprSimplifiedAndOr(Expr *pExpr){ static int exprNodeIsConstant(Walker *pWalker, Expr *pExpr){ /* If pWalker->eCode is 2 then any term of the expression that comes from - ** the ON or USING clauses of a left join disqualifies the expression + ** the ON or USING clauses of an outer join disqualifies the expression ** from being considered constant. */ - if( pWalker->eCode==2 && ExprHasProperty(pExpr, EP_FromJoin) ){ + if( pWalker->eCode==2 && ExprHasProperty(pExpr, EP_OuterON) ){ pWalker->eCode = 0; return WRC_Abort; } @@ -104770,18 +110836,24 @@ SQLITE_PRIVATE int sqlite3ExprIsTableConstant(Expr *p, int iCur){ } /* -** Check pExpr to see if it is an invariant constraint on data source pSrc. +** Check pExpr to see if it is an constraint on the single data source +** pSrc = &pSrcList->a[iSrc]. In other words, check to see if pExpr +** constrains pSrc but does not depend on any other tables or data +** sources anywhere else in the query. Return true (non-zero) if pExpr +** is a constraint on pSrc only. +** ** This is an optimization. False negatives will perhaps cause slower ** queries, but false positives will yield incorrect answers. So when in -** double, return 0. +** doubt, return 0. ** -** To be an invariant constraint, the following must be true: +** To be an single-source constraint, the following must be true: ** ** (1) pExpr cannot refer to any table other than pSrc->iCursor. ** ** (2) pExpr cannot use subqueries or non-deterministic functions. ** -** (*) ** Not applicable to this branch ** +** (3) pSrc cannot be part of the left operand for a RIGHT JOIN. +** (Is there some way to relax this constraint?) ** ** (4) If pSrc is the right operand of a LEFT JOIN, then... ** (4a) pExpr must come from an ON clause.. @@ -104790,15 +110862,49 @@ SQLITE_PRIVATE int sqlite3ExprIsTableConstant(Expr *p, int iCur){ ** (5) If pSrc is not the right operand of a LEFT JOIN or the left ** operand of a RIGHT JOIN, then pExpr must be from the WHERE ** clause, not an ON clause. +** +** (6) Either: +** +** (6a) pExpr does not originate in an ON or USING clause, or +** +** (6b) The ON or USING clause from which pExpr is derived is +** not to the left of a RIGHT JOIN (or FULL JOIN). +** +** Without this restriction, accepting pExpr as a single-table +** constraint might move the the ON/USING filter expression +** from the left side of a RIGHT JOIN over to the right side, +** which leads to incorrect answers. See also restriction (9) +** on push-down. */ -SQLITE_PRIVATE int sqlite3ExprIsTableConstraint(Expr *pExpr, const SrcItem *pSrc){ +SQLITE_PRIVATE int sqlite3ExprIsSingleTableConstraint( + Expr *pExpr, /* The constraint */ + const SrcList *pSrcList, /* Complete FROM clause */ + int iSrc /* Which element of pSrcList to use */ +){ + const SrcItem *pSrc = &pSrcList->a[iSrc]; + if( pSrc->fg.jointype & JT_LTORJ ){ + return 0; /* rule (3) */ + } if( pSrc->fg.jointype & JT_LEFT ){ - if( !ExprHasProperty(pExpr, EP_FromJoin) ) return 0; /* rule (4a) */ - if( pExpr->w.iRightJoinTable!=pSrc->iCursor ) return 0; /* rule (4b) */ + if( !ExprHasProperty(pExpr, EP_OuterON) ) return 0; /* rule (4a) */ + if( pExpr->w.iJoin!=pSrc->iCursor ) return 0; /* rule (4b) */ }else{ - if( ExprHasProperty(pExpr, EP_FromJoin) ) return 0; /* rule (5) */ + if( ExprHasProperty(pExpr, EP_OuterON) ) return 0; /* rule (5) */ + } + if( ExprHasProperty(pExpr, EP_OuterON|EP_InnerON) /* (6a) */ + && (pSrcList->a[0].fg.jointype & JT_LTORJ)!=0 /* Fast pre-test of (6b) */ + ){ + int jj; + for(jj=0; jj<iSrc; jj++){ + if( pExpr->w.iJoin==pSrcList->a[jj].iCursor ){ + if( (pSrcList->a[jj].fg.jointype & JT_LTORJ)!=0 ){ + return 0; /* restriction (6) */ + } + break; + } + } } - return sqlite3ExprIsTableConstant(pExpr, pSrc->iCursor); /* rules (1), (2) */ + return sqlite3ExprIsTableConstant(pExpr, pSrc->iCursor); /* rules (1), (2) */ } @@ -104974,9 +111080,10 @@ SQLITE_PRIVATE int sqlite3ExprCanBeNull(const Expr *p){ case TK_COLUMN: assert( ExprUseYTab(p) ); return ExprHasProperty(p, EP_CanBeNull) || - p->y.pTab==0 || /* Reference to column of index on expression */ + NEVER(p->y.pTab==0) || /* Reference to column of index on expr */ (p->iColumn>=0 && p->y.pTab->aCol!=0 /* Possible due to prior error */ + && ALWAYS(p->iColumn<p->y.pTab->nCol) && p->y.pTab->aCol[p->iColumn].notNull==0); default: return 1; @@ -105037,10 +111144,31 @@ SQLITE_PRIVATE int sqlite3IsRowid(const char *z){ } /* +** Return a pointer to a buffer containing a usable rowid alias for table +** pTab. An alias is usable if there is not an explicit user-defined column +** of the same name. +*/ +SQLITE_PRIVATE const char *sqlite3RowidAlias(Table *pTab){ + const char *azOpt[] = {"_ROWID_", "ROWID", "OID"}; + int ii; + assert( VisibleRowid(pTab) ); + for(ii=0; ii<ArraySize(azOpt); ii++){ + int iCol; + for(iCol=0; iCol<pTab->nCol; iCol++){ + if( sqlite3_stricmp(azOpt[ii], pTab->aCol[iCol].zCnName)==0 ) break; + } + if( iCol==pTab->nCol ){ + return azOpt[ii]; + } + } + return 0; +} + +/* ** pX is the RHS of an IN operator. If pX is a SELECT statement ** that can be simplified to a direct table access, then return ** a pointer to the SELECT statement. If pX is not a SELECT statement, -** or if the SELECT statement needs to be manifested into a transient +** or if the SELECT statement needs to be materialized into a transient ** table, then return NULL. */ #ifndef SQLITE_OMIT_SUBQUERY @@ -105128,7 +111256,7 @@ static int sqlite3InRhsIsConstant(Expr *pIn){ ** all members of the RHS set, skipping duplicates. ** ** A cursor is opened on the b-tree object that is the RHS of the IN operator -** and pX->iTable is set to the index of that cursor. +** and the *piTab parameter is set to the index of that cursor. ** ** The returned value of this function indicates the b-tree type, as follows: ** @@ -105136,7 +111264,7 @@ static int sqlite3InRhsIsConstant(Expr *pIn){ ** IN_INDEX_INDEX_ASC - The cursor was opened on an ascending index. ** IN_INDEX_INDEX_DESC - The cursor was opened on a descending index. ** IN_INDEX_EPH - The cursor was opened on a specially created and -** populated epheremal table. +** populated ephemeral table. ** IN_INDEX_NOOP - No cursor was allocated. The IN operator must be ** implemented as a sequence of comparisons. ** @@ -105148,7 +111276,10 @@ static int sqlite3InRhsIsConstant(Expr *pIn){ ** If the RHS of the IN operator is a list or a more complex subquery, then ** an ephemeral table might need to be generated from the RHS and then ** pX->iTable made to point to the ephemeral table instead of an -** existing table. +** existing table. In this case, the creation and initialization of the +** ephemeral table might be put inside of a subroutine, the EP_Subrtn flag +** will be set on pX and the pX->y.sub fields will be set to show where +** the subroutine is coded. ** ** The inFlags parameter must contain, at a minimum, one of the bits ** IN_INDEX_MEMBERSHIP or IN_INDEX_LOOP but not both. If inFlags contains @@ -105158,12 +111289,12 @@ static int sqlite3InRhsIsConstant(Expr *pIn){ ** ** When IN_INDEX_LOOP is used (and the b-tree will be used to iterate ** through the set members) then the b-tree must not contain duplicates. -** An epheremal table will be created unless the selected columns are guaranteed +** An ephemeral table will be created unless the selected columns are guaranteed ** to be unique - either because it is an INTEGER PRIMARY KEY or due to ** a UNIQUE constraint or index. ** ** When IN_INDEX_MEMBERSHIP is used (and the b-tree will be used -** for fast set membership tests) then an epheremal table must +** for fast set membership tests) then an ephemeral table must ** be used unless <columns> is a single INTEGER PRIMARY KEY column or an ** index can be found with the specified <columns> as its left-most. ** @@ -105209,12 +111340,13 @@ SQLITE_PRIVATE int sqlite3FindInIndex( ){ Select *p; /* SELECT to the right of IN operator */ int eType = 0; /* Type of RHS table. IN_INDEX_* */ - int iTab = pParse->nTab++; /* Cursor of the RHS table */ + int iTab; /* Cursor of the RHS table */ int mustBeUnique; /* True if RHS must be unique */ Vdbe *v = sqlite3GetVdbe(pParse); /* Virtual machine being coded */ assert( pX->op==TK_IN ); mustBeUnique = (inFlags & IN_INDEX_LOOP)!=0; + iTab = pParse->nTab++; /* If the RHS of this IN(...) operator is a SELECT, and if it matters ** whether or not the SELECT result contains NULL values, check whether @@ -105322,7 +111454,6 @@ SQLITE_PRIVATE int sqlite3FindInIndex( CollSeq *pReq = sqlite3BinaryCompareCollSeq(pParse, pLhs, pRhs); int j; - assert( pReq!=0 || pRhs->iColumn==XN_ROWID || pParse->nErr ); for(j=0; j<nExpr; j++){ if( pIdx->aiColumn[j]!=pRhs->iColumn ) continue; assert( pIdx->azColl[j] ); @@ -105380,6 +111511,8 @@ SQLITE_PRIVATE int sqlite3FindInIndex( && ExprUseXList(pX) && (!sqlite3InRhsIsConstant(pX) || pX->x.pList->nExpr<=2) ){ + pParse->nTab--; /* Back out the allocation of the unused cursor */ + iTab = -1; /* Cursor is not allocated */ eType = IN_INDEX_NOOP; } @@ -105494,7 +111627,7 @@ SQLITE_PRIVATE void sqlite3VectorErrorMsg(Parse *pParse, Expr *pExpr){ ** x IN (SELECT a FROM b) -- IN operator with subquery on the right ** ** The pExpr parameter is the IN operator. The cursor number for the -** constructed ephermeral table is returned. The first time the ephemeral +** constructed ephemeral table is returned. The first time the ephemeral ** table is computed, the cursor number is also stored in pExpr->iTable, ** however the cursor number returned might not be the same, as it might ** have been duplicated using OP_OpenDup. @@ -105546,6 +111679,7 @@ SQLITE_PRIVATE void sqlite3CodeRhsOfIN( assert( ExprUseYSub(pExpr) ); sqlite3VdbeAddOp2(v, OP_Gosub, pExpr->y.sub.regReturn, pExpr->y.sub.iAddr); + assert( iTab!=pExpr->iTable ); sqlite3VdbeAddOp2(v, OP_OpenDup, iTab, pExpr->iTable); sqlite3VdbeJumpHere(v, addrOnce); return; @@ -105557,8 +111691,7 @@ SQLITE_PRIVATE void sqlite3CodeRhsOfIN( assert( !ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced) ); pExpr->y.sub.regReturn = ++pParse->nMem; pExpr->y.sub.iAddr = - sqlite3VdbeAddOp2(v, OP_Integer, 0, pExpr->y.sub.regReturn) + 1; - VdbeComment((v, "return address")); + sqlite3VdbeAddOp2(v, OP_BeginSubrtn, 0, pExpr->y.sub.regReturn) + 1; addrOnce = sqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v); } @@ -105660,6 +111793,7 @@ SQLITE_PRIVATE void sqlite3CodeRhsOfIN( ** expression we need to rerun this code each time. */ if( addrOnce && !sqlite3ExprIsConstant(pE2) ){ + sqlite3VdbeChangeToNoop(v, addrOnce-1); sqlite3VdbeChangeToNoop(v, addrOnce); ExprClearProperty(pExpr, EP_Subrtn); addrOnce = 0; @@ -105677,11 +111811,15 @@ SQLITE_PRIVATE void sqlite3CodeRhsOfIN( sqlite3VdbeChangeP4(v, addr, (void *)pKeyInfo, P4_KEYINFO); } if( addrOnce ){ + sqlite3VdbeAddOp1(v, OP_NullRow, iTab); sqlite3VdbeJumpHere(v, addrOnce); /* Subroutine return */ assert( ExprUseYSub(pExpr) ); - sqlite3VdbeAddOp1(v, OP_Return, pExpr->y.sub.regReturn); - sqlite3VdbeChangeP1(v, pExpr->y.sub.iAddr-1, sqlite3VdbeCurrentAddr(v)-1); + assert( sqlite3VdbeGetOp(v,pExpr->y.sub.iAddr-1)->opcode==OP_BeginSubrtn + || pParse->nErr ); + sqlite3VdbeAddOp3(v, OP_Return, pExpr->y.sub.regReturn, + pExpr->y.sub.iAddr, 1); + VdbeCoverage(v); sqlite3ClearTempRegCache(pParse); } } @@ -105709,6 +111847,9 @@ SQLITE_PRIVATE int sqlite3CodeSubselect(Parse *pParse, Expr *pExpr){ SelectDest dest; /* How to deal with SELECT result */ int nReg; /* Registers to allocate */ Expr *pLimit; /* New limit expression */ +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS + int addrExplain; /* Address of OP_Explain instruction */ +#endif Vdbe *v = pParse->pVdbe; assert( v!=0 ); @@ -105735,9 +111876,7 @@ SQLITE_PRIVATE int sqlite3CodeSubselect(Parse *pParse, Expr *pExpr){ ExprSetProperty(pExpr, EP_Subrtn); pExpr->y.sub.regReturn = ++pParse->nMem; pExpr->y.sub.iAddr = - sqlite3VdbeAddOp2(v, OP_Integer, 0, pExpr->y.sub.regReturn) + 1; - VdbeComment((v, "return address")); - + sqlite3VdbeAddOp2(v, OP_BeginSubrtn, 0, pExpr->y.sub.regReturn) + 1; /* The evaluation of the EXISTS/SELECT must be repeated every time it ** is encountered if any of the following is true: @@ -105763,8 +111902,9 @@ SQLITE_PRIVATE int sqlite3CodeSubselect(Parse *pParse, Expr *pExpr){ ** In both cases, the query is augmented with "LIMIT 1". Any ** preexisting limit is discarded in place of the new LIMIT 1. */ - ExplainQueryPlan((pParse, 1, "%sSCALAR SUBQUERY %d", + ExplainQueryPlan2(addrExplain, (pParse, 1, "%sSCALAR SUBQUERY %d", addrOnce?"":"CORRELATED ", pSel->selId)); + sqlite3VdbeScanStatusCounters(v, addrExplain, addrExplain, -1); nReg = pExpr->op==TK_SELECT ? pSel->pEList->nExpr : 1; sqlite3SelectDestInit(&dest, 0, pParse->nMem+1); pParse->nMem += nReg; @@ -105789,7 +111929,7 @@ SQLITE_PRIVATE int sqlite3CodeSubselect(Parse *pParse, Expr *pExpr){ pLimit = sqlite3PExpr(pParse, TK_NE, sqlite3ExprDup(db, pSel->pLimit->pLeft, 0), pLimit); } - sqlite3ExprDelete(db, pSel->pLimit->pLeft); + sqlite3ExprDeferredDelete(pParse, pSel->pLimit->pLeft); pSel->pLimit->pLeft = pLimit; }else{ /* If there is no pre-existing limit add a limit of 1 */ @@ -105807,11 +111947,15 @@ SQLITE_PRIVATE int sqlite3CodeSubselect(Parse *pParse, Expr *pExpr){ if( addrOnce ){ sqlite3VdbeJumpHere(v, addrOnce); } + sqlite3VdbeScanStatusRange(v, addrExplain, addrExplain, -1); /* Subroutine return */ assert( ExprUseYSub(pExpr) ); - sqlite3VdbeAddOp1(v, OP_Return, pExpr->y.sub.regReturn); - sqlite3VdbeChangeP1(v, pExpr->y.sub.iAddr-1, sqlite3VdbeCurrentAddr(v)-1); + assert( sqlite3VdbeGetOp(v,pExpr->y.sub.iAddr-1)->opcode==OP_BeginSubrtn + || pParse->nErr ); + sqlite3VdbeAddOp3(v, OP_Return, pExpr->y.sub.regReturn, + pExpr->y.sub.iAddr, 1); + VdbeCoverage(v); sqlite3ClearTempRegCache(pParse); return rReg; } @@ -106212,6 +112356,7 @@ SQLITE_PRIVATE void sqlite3ExprCodeGeneratedColumn( ){ int iAddr; Vdbe *v = pParse->pVdbe; + int nErr = pParse->nErr; assert( v!=0 ); assert( pParse->iSelfTab!=0 ); if( pParse->iSelfTab>0 ){ @@ -106224,6 +112369,7 @@ SQLITE_PRIVATE void sqlite3ExprCodeGeneratedColumn( sqlite3VdbeAddOp4(v, OP_Affinity, regOut, 1, 0, &pCol->affinity, 1); } if( iAddr ) sqlite3VdbeJumpHere(v, iAddr); + if( pParse->nErr>nErr ) pParse->db->errByteOffset = -1; } #endif /* SQLITE_OMIT_GENERATED_COLUMNS */ @@ -106239,12 +112385,11 @@ SQLITE_PRIVATE void sqlite3ExprCodeGetColumnOfTable( ){ Column *pCol; assert( v!=0 ); - if( pTab==0 ){ - sqlite3VdbeAddOp3(v, OP_Column, iTabCur, iCol, regOut); - return; - } + assert( pTab!=0 ); + assert( iCol!=XN_EXPR ); if( iCol<0 || iCol==pTab->iPKey ){ sqlite3VdbeAddOp2(v, OP_Rowid, iTabCur, regOut); + VdbeComment((v, "%s.rowid", pTab->zName)); }else{ int op; int x; @@ -106297,10 +112442,13 @@ SQLITE_PRIVATE int sqlite3ExprCodeGetColumn( u8 p5 /* P5 value for OP_Column + FLAGS */ ){ assert( pParse->pVdbe!=0 ); + assert( (p5 & (OPFLAG_NOCHNG|OPFLAG_TYPEOFARG|OPFLAG_LENGTHARG))==p5 ); + assert( IsVirtual(pTab) || (p5 & OPFLAG_NOCHNG)==0 ); sqlite3ExprCodeGetColumnOfTable(pParse->pVdbe, pTab, iTable, iColumn, iReg); if( p5 ){ - VdbeOp *pOp = sqlite3VdbeGetOp(pParse->pVdbe,-1); + VdbeOp *pOp = sqlite3VdbeGetLastOp(pParse->pVdbe); if( pOp->opcode==OP_Column ) pOp->p5 = p5; + if( pOp->opcode==OP_VColumn ) pOp->p5 = (p5 & OPFLAG_NOCHNG); } return iReg; } @@ -106329,7 +112477,7 @@ static void exprToRegister(Expr *pExpr, int iReg){ /* ** Evaluate an expression (either a vector or a scalar expression) and store -** the result in continguous temporary registers. Return the index of +** the result in contiguous temporary registers. Return the index of ** the first register used to store the result. ** ** If the returned result register is a temporary scalar, then also write @@ -106368,8 +112516,8 @@ static int exprCodeVector(Parse *pParse, Expr *p, int *piFreeable){ ** so that a subsequent copy will not be merged into this one. */ static void setDoNotMergeFlagOnCopy(Vdbe *v){ - if( sqlite3VdbeGetOp(v, -1)->opcode==OP_Copy ){ - sqlite3VdbeChangeP5(v, 1); /* Tag trailing OP_Copy as not mergable */ + if( sqlite3VdbeGetLastOp(v)->opcode==OP_Copy ){ + sqlite3VdbeChangeP5(v, 1); /* Tag trailing OP_Copy as not mergeable */ } } @@ -106415,7 +112563,17 @@ static int exprCodeInlineFunction( caseExpr.x.pList = pFarg; return sqlite3ExprCodeTarget(pParse, &caseExpr, target); } - +#ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC + case INLINEFUNC_sqlite_offset: { + Expr *pArg = pFarg->a[0].pExpr; + if( pArg->op==TK_COLUMN && pArg->iTable>=0 ){ + sqlite3VdbeAddOp3(v, OP_Offset, pArg->iTable, pArg->iColumn, target); + }else{ + sqlite3VdbeAddOp2(v, OP_Null, 0, target); + } + break; + } +#endif default: { /* The UNLIKELY() function is a no-op. The result is the value ** of the first argument. @@ -106449,13 +112607,13 @@ static int exprCodeInlineFunction( } case INLINEFUNC_implies_nonnull_row: { - /* REsult of sqlite3ExprImpliesNonNullRow() */ + /* Result of sqlite3ExprImpliesNonNullRow() */ Expr *pA1; assert( nFarg==2 ); pA1 = pFarg->a[1].pExpr; if( pA1->op==TK_COLUMN ){ sqlite3VdbeAddOp2(v, OP_Integer, - sqlite3ExprImpliesNonNullRow(pFarg->a[0].pExpr,pA1->iTable), + sqlite3ExprImpliesNonNullRow(pFarg->a[0].pExpr,pA1->iTable,1), target); }else{ sqlite3VdbeAddOp2(v, OP_Null, 0, target); @@ -106468,10 +112626,13 @@ static int exprCodeInlineFunction( ** the type affinity of the argument. This is used for testing of ** the SQLite type logic. */ - const char *azAff[] = { "blob", "text", "numeric", "integer", "real" }; + const char *azAff[] = { "blob", "text", "numeric", "integer", + "real", "flexnum" }; char aff; assert( nFarg==1 ); aff = sqlite3ExprAffinity(pFarg->a[0].pExpr); + assert( aff<=SQLITE_AFF_NONE + || (aff>=SQLITE_AFF_BLOB && aff<=SQLITE_AFF_FLEXNUM) ); sqlite3VdbeLoadString(v, target, (aff<=SQLITE_AFF_NONE) ? "none" : azAff[aff-SQLITE_AFF_BLOB]); break; @@ -106481,6 +112642,99 @@ static int exprCodeInlineFunction( return target; } +/* +** Check to see if pExpr is one of the indexed expressions on pParse->pIdxEpr. +** If it is, then resolve the expression by reading from the index and +** return the register into which the value has been read. If pExpr is +** not an indexed expression, then return negative. +*/ +static SQLITE_NOINLINE int sqlite3IndexedExprLookup( + Parse *pParse, /* The parsing context */ + Expr *pExpr, /* The expression to potentially bypass */ + int target /* Where to store the result of the expression */ +){ + IndexedExpr *p; + Vdbe *v; + for(p=pParse->pIdxEpr; p; p=p->pIENext){ + u8 exprAff; + int iDataCur = p->iDataCur; + if( iDataCur<0 ) continue; + if( pParse->iSelfTab ){ + if( p->iDataCur!=pParse->iSelfTab-1 ) continue; + iDataCur = -1; + } + if( sqlite3ExprCompare(0, pExpr, p->pExpr, iDataCur)!=0 ) continue; + assert( p->aff>=SQLITE_AFF_BLOB && p->aff<=SQLITE_AFF_NUMERIC ); + exprAff = sqlite3ExprAffinity(pExpr); + if( (exprAff<=SQLITE_AFF_BLOB && p->aff!=SQLITE_AFF_BLOB) + || (exprAff==SQLITE_AFF_TEXT && p->aff!=SQLITE_AFF_TEXT) + || (exprAff>=SQLITE_AFF_NUMERIC && p->aff!=SQLITE_AFF_NUMERIC) + ){ + /* Affinity mismatch on a generated column */ + continue; + } + + v = pParse->pVdbe; + assert( v!=0 ); + if( p->bMaybeNullRow ){ + /* If the index is on a NULL row due to an outer join, then we + ** cannot extract the value from the index. The value must be + ** computed using the original expression. */ + int addr = sqlite3VdbeCurrentAddr(v); + sqlite3VdbeAddOp3(v, OP_IfNullRow, p->iIdxCur, addr+3, target); + VdbeCoverage(v); + sqlite3VdbeAddOp3(v, OP_Column, p->iIdxCur, p->iIdxCol, target); + VdbeComment((v, "%s expr-column %d", p->zIdxName, p->iIdxCol)); + sqlite3VdbeGoto(v, 0); + p = pParse->pIdxEpr; + pParse->pIdxEpr = 0; + sqlite3ExprCode(pParse, pExpr, target); + pParse->pIdxEpr = p; + sqlite3VdbeJumpHere(v, addr+2); + }else{ + sqlite3VdbeAddOp3(v, OP_Column, p->iIdxCur, p->iIdxCol, target); + VdbeComment((v, "%s expr-column %d", p->zIdxName, p->iIdxCol)); + } + return target; + } + return -1; /* Not found */ +} + + +/* +** Expresion pExpr is guaranteed to be a TK_COLUMN or equivalent. This +** function checks the Parse.pIdxPartExpr list to see if this column +** can be replaced with a constant value. If so, it generates code to +** put the constant value in a register (ideally, but not necessarily, +** register iTarget) and returns the register number. +** +** Or, if the TK_COLUMN cannot be replaced by a constant, zero is +** returned. +*/ +static int exprPartidxExprLookup(Parse *pParse, Expr *pExpr, int iTarget){ + IndexedExpr *p; + for(p=pParse->pIdxPartExpr; p; p=p->pIENext){ + if( pExpr->iColumn==p->iIdxCol && pExpr->iTable==p->iDataCur ){ + Vdbe *v = pParse->pVdbe; + int addr = 0; + int ret; + + if( p->bMaybeNullRow ){ + addr = sqlite3VdbeAddOp1(v, OP_IfNullRow, p->iIdxCur); + } + ret = sqlite3ExprCodeTarget(pParse, p->pExpr, iTarget); + sqlite3VdbeAddOp4(pParse->pVdbe, OP_Affinity, ret, 1, 0, + (const char*)&p->aff, 1); + if( addr ){ + sqlite3VdbeJumpHere(v, addr); + sqlite3VdbeChangeP3(v, addr, ret); + } + return ret; + } + } + return 0; +} + /* ** Generate code into the current Vdbe to evaluate the given @@ -106509,25 +112763,44 @@ SQLITE_PRIVATE int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target) expr_code_doover: if( pExpr==0 ){ op = TK_NULL; + }else if( pParse->pIdxEpr!=0 + && !ExprHasProperty(pExpr, EP_Leaf) + && (r1 = sqlite3IndexedExprLookup(pParse, pExpr, target))>=0 + ){ + return r1; }else{ assert( !ExprHasVVAProperty(pExpr,EP_Immutable) ); op = pExpr->op; } + assert( op!=TK_ORDER ); switch( op ){ case TK_AGG_COLUMN: { AggInfo *pAggInfo = pExpr->pAggInfo; struct AggInfo_col *pCol; assert( pAggInfo!=0 ); - assert( pExpr->iAgg>=0 && pExpr->iAgg<pAggInfo->nColumn ); + assert( pExpr->iAgg>=0 ); + if( pExpr->iAgg>=pAggInfo->nColumn ){ + /* Happens when the left table of a RIGHT JOIN is null and + ** is using an expression index */ + sqlite3VdbeAddOp2(v, OP_Null, 0, target); +#ifdef SQLITE_VDBE_COVERAGE + /* Verify that the OP_Null above is exercised by tests + ** tag-20230325-2 */ + sqlite3VdbeAddOp3(v, OP_NotNull, target, 1, 20230325); + VdbeCoverageNeverTaken(v); +#endif + break; + } pCol = &pAggInfo->aCol[pExpr->iAgg]; if( !pAggInfo->directMode ){ - assert( pCol->iMem>0 ); - return pCol->iMem; + return AggInfoColumnReg(pAggInfo, pExpr->iAgg); }else if( pAggInfo->useSortingIdx ){ Table *pTab = pCol->pTab; sqlite3VdbeAddOp3(v, OP_Column, pAggInfo->sortingIdxPTab, pCol->iSorterColumn, target); - if( pCol->iColumn<0 ){ + if( pTab==0 ){ + /* No comment added */ + }else if( pCol->iColumn<0 ){ VdbeComment((v,"%s.rowid",pTab->zName)); }else{ VdbeComment((v,"%s.%s", @@ -106537,6 +112810,11 @@ expr_code_doover: } } return target; + }else if( pExpr->y.pTab==0 ){ + /* This case happens when the argument to an aggregate function + ** is rewritten by aggregateConvertIndexedExprRefToColumn() */ + sqlite3VdbeAddOp3(v, OP_Column, pExpr->iTable, pExpr->iColumn, target); + return target; } /* Otherwise, fall thru into the TK_COLUMN case */ /* no break */ deliberate_fall_through @@ -106547,20 +112825,17 @@ expr_code_doover: if( ExprHasProperty(pExpr, EP_FixedCol) ){ /* This COLUMN expression is really a constant due to WHERE clause ** constraints, and that constant is coded by the pExpr->pLeft - ** expresssion. However, make sure the constant has the correct + ** expression. However, make sure the constant has the correct ** datatype by applying the Affinity of the table column to the ** constant. */ int aff; iReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft,target); assert( ExprUseYTab(pExpr) ); - if( pExpr->y.pTab ){ - aff = sqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn); - }else{ - aff = pExpr->affExpr; - } + assert( pExpr->y.pTab!=0 ); + aff = sqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn); if( aff>SQLITE_AFF_BLOB ){ - static const char zAff[] = "B\000C\000D\000E"; + static const char zAff[] = "B\000C\000D\000E\000F"; assert( SQLITE_AFF_BLOB=='A' ); assert( SQLITE_AFF_TEXT=='B' ); sqlite3VdbeAddOp4(v, OP_Affinity, iReg, 1, 0, @@ -106619,13 +112894,16 @@ expr_code_doover: iTab = pParse->iSelfTab - 1; } } + else if( pParse->pIdxPartExpr + && 0!=(r1 = exprPartidxExprLookup(pParse, pExpr, target)) + ){ + return r1; + } assert( ExprUseYTab(pExpr) ); + assert( pExpr->y.pTab!=0 ); iReg = sqlite3ExprCodeGetColumn(pParse, pExpr->y.pTab, pExpr->iColumn, iTab, target, pExpr->op2); - if( pExpr->y.pTab==0 && pExpr->affExpr==SQLITE_AFF_REAL ){ - sqlite3VdbeAddOp1(v, OP_RealAffinity, iReg); - } return iReg; } case TK_INTEGER: { @@ -106692,11 +112970,8 @@ expr_code_doover: #ifndef SQLITE_OMIT_CAST case TK_CAST: { /* Expressions of the form: CAST(pLeft AS token) */ - inReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft, target); - if( inReg!=target ){ - sqlite3VdbeAddOp2(v, OP_SCopy, inReg, target); - inReg = target; - } + sqlite3ExprCode(pParse, pExpr->pLeft, target); + assert( inReg==target ); assert( !ExprHasProperty(pExpr, EP_IntValue) ); sqlite3VdbeAddOp2(v, OP_Cast, target, sqlite3AffinityType(pExpr->u.zToken, 0)); @@ -106839,7 +113114,7 @@ expr_code_doover: assert( !ExprHasProperty(pExpr, EP_IntValue) ); sqlite3ErrorMsg(pParse, "misuse of aggregate: %#T()", pExpr); }else{ - return pInfo->aFunc[pExpr->iAgg].iMem; + return AggInfoFuncReg(pInfo, pExpr->iAgg); } break; } @@ -106881,7 +113156,7 @@ expr_code_doover: sqlite3ErrorMsg(pParse, "unknown function: %#T()", pExpr); break; } - if( pDef->funcFlags & SQLITE_FUNC_INLINE ){ + if( (pDef->funcFlags & SQLITE_FUNC_INLINE)!=0 && ALWAYS(pFarg!=0) ){ assert( (pDef->funcFlags & SQLITE_FUNC_UNSAFE)==0 ); assert( (pDef->funcFlags & SQLITE_FUNC_DIRECT)==0 ); return exprCodeInlineFunction(pParse, pFarg, @@ -106907,10 +113182,10 @@ expr_code_doover: r1 = sqlite3GetTempRange(pParse, nFarg); } - /* For length() and typeof() functions with a column argument, + /* For length() and typeof() and octet_length() functions, ** set the P5 parameter to the OP_Column opcode to OPFLAG_LENGTHARG - ** or OPFLAG_TYPEOFARG respectively, to avoid unnecessary data - ** loading. + ** or OPFLAG_TYPEOFARG or OPFLAG_BYTELENARG respectively, to avoid + ** unnecessary data loading. */ if( (pDef->funcFlags & (SQLITE_FUNC_LENGTH|SQLITE_FUNC_TYPEOF))!=0 ){ u8 exprOp; @@ -106920,14 +113195,16 @@ expr_code_doover: if( exprOp==TK_COLUMN || exprOp==TK_AGG_COLUMN ){ assert( SQLITE_FUNC_LENGTH==OPFLAG_LENGTHARG ); assert( SQLITE_FUNC_TYPEOF==OPFLAG_TYPEOFARG ); - testcase( pDef->funcFlags & OPFLAG_LENGTHARG ); - pFarg->a[0].pExpr->op2 = - pDef->funcFlags & (OPFLAG_LENGTHARG|OPFLAG_TYPEOFARG); + assert( SQLITE_FUNC_BYTELEN==OPFLAG_BYTELENARG ); + assert( (OPFLAG_LENGTHARG|OPFLAG_TYPEOFARG)==OPFLAG_BYTELENARG ); + testcase( (pDef->funcFlags & OPFLAG_BYTELENARG)==OPFLAG_LENGTHARG ); + testcase( (pDef->funcFlags & OPFLAG_BYTELENARG)==OPFLAG_TYPEOFARG ); + testcase( (pDef->funcFlags & OPFLAG_BYTELENARG)==OPFLAG_BYTELENARG); + pFarg->a[0].pExpr->op2 = pDef->funcFlags & OPFLAG_BYTELENARG; } } - sqlite3ExprCodeExprList(pParse, pFarg, r1, 0, - SQLITE_ECEL_DUP|SQLITE_ECEL_FACTOR); + sqlite3ExprCodeExprList(pParse, pFarg, r1, 0, SQLITE_ECEL_FACTOR); }else{ r1 = 0; } @@ -106954,20 +113231,8 @@ expr_code_doover: if( !pColl ) pColl = db->pDfltColl; sqlite3VdbeAddOp4(v, OP_CollSeq, 0, 0, 0, (char *)pColl, P4_COLLSEQ); } -#ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC - if( (pDef->funcFlags & SQLITE_FUNC_OFFSET)!=0 && ALWAYS(pFarg!=0) ){ - Expr *pArg = pFarg->a[0].pExpr; - if( pArg->op==TK_COLUMN ){ - sqlite3VdbeAddOp3(v, OP_Offset, pArg->iTable, pArg->iColumn, target); - }else{ - sqlite3VdbeAddOp2(v, OP_Null, 0, target); - } - }else -#endif - { - sqlite3VdbeAddFunctionCall(pParse, constMask, r1, target, nFarg, - pDef, pExpr->op2); - } + sqlite3VdbeAddFunctionCall(pParse, constMask, r1, target, nFarg, + pDef, pExpr->op2); if( nFarg ){ if( constMask==0 ){ sqlite3ReleaseTempRange(pParse, r1, nFarg); @@ -106997,16 +113262,18 @@ expr_code_doover: } case TK_SELECT_COLUMN: { int n; - if( pExpr->pLeft->iTable==0 ){ - pExpr->pLeft->iTable = sqlite3CodeSubselect(pParse, pExpr->pLeft); + Expr *pLeft = pExpr->pLeft; + if( pLeft->iTable==0 || pParse->withinRJSubrtn > pLeft->op2 ){ + pLeft->iTable = sqlite3CodeSubselect(pParse, pLeft); + pLeft->op2 = pParse->withinRJSubrtn; } - assert( pExpr->pLeft->op==TK_SELECT || pExpr->pLeft->op==TK_ERROR ); - n = sqlite3ExprVectorSize(pExpr->pLeft); + assert( pLeft->op==TK_SELECT || pLeft->op==TK_ERROR ); + n = sqlite3ExprVectorSize(pLeft); if( pExpr->iTable!=n ){ sqlite3ErrorMsg(pParse, "%d columns assigned %d values", pExpr->iTable, n); } - return pExpr->pLeft->iTable + pExpr->iColumn; + return pLeft->iTable + pExpr->iColumn; } case TK_IN: { int destIfFalse = sqlite3VdbeMakeLabel(pParse); @@ -107037,8 +113304,23 @@ expr_code_doover: exprCodeBetween(pParse, pExpr, target, 0, 0); return target; } + case TK_COLLATE: { + if( !ExprHasProperty(pExpr, EP_Collate) ){ + /* A TK_COLLATE Expr node without the EP_Collate tag is a so-called + ** "SOFT-COLLATE" that is added to constraints that are pushed down + ** from outer queries into sub-queries by the push-down optimization. + ** Clear subtypes as subtypes may not cross a subquery boundary. + */ + assert( pExpr->pLeft ); + sqlite3ExprCode(pParse, pExpr->pLeft, target); + sqlite3VdbeAddOp1(v, OP_ClrSubtype, target); + return target; + }else{ + pExpr = pExpr->pLeft; + goto expr_code_doover; /* 2018-04-28: Prevent deep recursion. */ + } + } case TK_SPAN: - case TK_COLLATE: case TK_UPLUS: { pExpr = pExpr->pLeft; goto expr_code_doover; /* 2018-04-28: Prevent deep recursion. OSSFuzz. */ @@ -107118,16 +113400,34 @@ expr_code_doover: case TK_IF_NULL_ROW: { int addrINR; u8 okConstFactor = pParse->okConstFactor; - addrINR = sqlite3VdbeAddOp1(v, OP_IfNullRow, pExpr->iTable); - /* Temporarily disable factoring of constant expressions, since - ** even though expressions may appear to be constant, they are not - ** really constant because they originate from the right-hand side - ** of a LEFT JOIN. */ - pParse->okConstFactor = 0; - inReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft, target); + AggInfo *pAggInfo = pExpr->pAggInfo; + if( pAggInfo ){ + assert( pExpr->iAgg>=0 && pExpr->iAgg<pAggInfo->nColumn ); + if( !pAggInfo->directMode ){ + inReg = AggInfoColumnReg(pAggInfo, pExpr->iAgg); + break; + } + if( pExpr->pAggInfo->useSortingIdx ){ + sqlite3VdbeAddOp3(v, OP_Column, pAggInfo->sortingIdxPTab, + pAggInfo->aCol[pExpr->iAgg].iSorterColumn, + target); + inReg = target; + break; + } + } + addrINR = sqlite3VdbeAddOp3(v, OP_IfNullRow, pExpr->iTable, 0, target); + /* The OP_IfNullRow opcode above can overwrite the result register with + ** NULL. So we have to ensure that the result register is not a value + ** that is suppose to be a constant. Two defenses are needed: + ** (1) Temporarily disable factoring of constant expressions + ** (2) Make sure the computed value really is stored in register + ** "target" and not someplace else. + */ + pParse->okConstFactor = 0; /* note (1) above */ + sqlite3ExprCode(pParse, pExpr->pLeft, target); + assert( target==inReg ); pParse->okConstFactor = okConstFactor; sqlite3VdbeJumpHere(v, addrINR); - sqlite3VdbeChangeP3(v, addrINR, inReg); break; } @@ -107259,9 +113559,9 @@ expr_code_doover: ** once. If no functions are involved, then factor the code out and put it at ** the end of the prepared statement in the initialization section. ** -** If regDest>=0 then the result is always stored in that register and the +** If regDest>0 then the result is always stored in that register and the ** result is not reusable. If regDest<0 then this routine is free to -** store the value whereever it wants. The register where the expression +** store the value wherever it wants. The register where the expression ** is stored is returned. When regDest<0, two identical expressions might ** code to the same register, if they do not contain function calls and hence ** are factored out into the initialization section at the end of the @@ -107274,12 +113574,15 @@ SQLITE_PRIVATE int sqlite3ExprCodeRunJustOnce( ){ ExprList *p; assert( ConstFactorOk(pParse) ); + assert( regDest!=0 ); p = pParse->pConstExpr; if( regDest<0 && p ){ struct ExprList_item *pItem; int i; for(pItem=p->a, i=p->nExpr; i>0; pItem++, i--){ - if( pItem->reusable && sqlite3ExprCompare(0,pItem->pExpr,pExpr,-1)==0 ){ + if( pItem->fg.reusable + && sqlite3ExprCompare(0,pItem->pExpr,pExpr,-1)==0 + ){ return pItem->u.iConstExprReg; } } @@ -107302,7 +113605,7 @@ SQLITE_PRIVATE int sqlite3ExprCodeRunJustOnce( p = sqlite3ExprListAppend(pParse, p, pExpr); if( p ){ struct ExprList_item *pItem = &p->a[p->nExpr-1]; - pItem->reusable = regDest<0; + pItem->fg.reusable = regDest<0; if( regDest<0 ) regDest = ++pParse->nMem; pItem->u.iConstExprReg = regDest; } @@ -107362,7 +113665,11 @@ SQLITE_PRIVATE void sqlite3ExprCode(Parse *pParse, Expr *pExpr, int target){ inReg = sqlite3ExprCodeTarget(pParse, pExpr, target); if( inReg!=target ){ u8 op; - if( ALWAYS(pExpr) && ExprHasProperty(pExpr,EP_Subquery) ){ + Expr *pX = sqlite3ExprSkipCollateAndLikely(pExpr); + testcase( pX!=pExpr ); + if( ALWAYS(pX) + && (ExprHasProperty(pX,EP_Subquery) || pX->op==TK_REGISTER) + ){ op = OP_Copy; }else{ op = OP_SCopy; @@ -107436,7 +113743,7 @@ SQLITE_PRIVATE int sqlite3ExprCodeExprList( for(pItem=pList->a, i=0; i<n; i++, pItem++){ Expr *pExpr = pItem->pExpr; #ifdef SQLITE_ENABLE_SORTER_REFERENCES - if( pItem->bSorterRef ){ + if( pItem->fg.bSorterRef ){ i--; n--; }else @@ -107457,7 +113764,7 @@ SQLITE_PRIVATE int sqlite3ExprCodeExprList( if( inReg!=target+i ){ VdbeOp *pOp; if( copyOp==OP_Copy - && (pOp=sqlite3VdbeGetOp(v, -1))->opcode==OP_Copy + && (pOp=sqlite3VdbeGetLastOp(v))->opcode==OP_Copy && pOp->p1+pOp->p3+1==inReg && pOp->p2+pOp->p3+1==target+i && pOp->p5==0 /* The do-not-merge flag must be clear */ @@ -107530,8 +113837,8 @@ static void exprCodeBetween( ** so that the sqlite3ExprCodeTarget() routine will not attempt to move ** it into the Parse.pConstExpr list. We should use a new bit for this, ** for clarity, but we are out of bits in the Expr.flags field so we - ** have to reuse the EP_FromJoin bit. Bummer. */ - pDel->flags |= EP_FromJoin; + ** have to reuse the EP_OuterON bit. Bummer. */ + pDel->flags |= EP_OuterON; sqlite3ExprCodeTarget(pParse, &exprAnd, dest); } sqlite3ReleaseTempReg(pParse, regFree1); @@ -107656,6 +113963,7 @@ SQLITE_PRIVATE void sqlite3ExprIfTrue(Parse *pParse, Expr *pExpr, int dest, int assert( TK_ISNULL==OP_IsNull ); testcase( op==TK_ISNULL ); assert( TK_NOTNULL==OP_NotNull ); testcase( op==TK_NOTNULL ); r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, ®Free1); + sqlite3VdbeTypeofColumn(v, r1); sqlite3VdbeAddOp2(v, op, r1, dest); VdbeCoverageIf(v, op==TK_ISNULL); VdbeCoverageIf(v, op==TK_NOTNULL); @@ -107830,6 +114138,7 @@ SQLITE_PRIVATE void sqlite3ExprIfFalse(Parse *pParse, Expr *pExpr, int dest, int case TK_ISNULL: case TK_NOTNULL: { r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, ®Free1); + sqlite3VdbeTypeofColumn(v, r1); sqlite3VdbeAddOp2(v, op, r1, dest); testcase( op==TK_ISNULL ); VdbeCoverageIf(v, op==TK_ISNULL); testcase( op==TK_NOTNULL ); VdbeCoverageIf(v, op==TK_NOTNULL); @@ -107983,7 +114292,13 @@ SQLITE_PRIVATE int sqlite3ExprCompare( if( pB->op==TK_COLLATE && sqlite3ExprCompare(pParse, pA,pB->pLeft,iTab)<2 ){ return 1; } - return 2; + if( pA->op==TK_AGG_COLUMN && pB->op==TK_COLUMN + && pB->iTable<0 && pA->iTable==iTab + ){ + /* fall through */ + }else{ + return 2; + } } assert( !ExprHasProperty(pA, EP_IntValue) ); assert( !ExprHasProperty(pB, EP_IntValue) ); @@ -108061,7 +114376,7 @@ SQLITE_PRIVATE int sqlite3ExprListCompare(const ExprList *pA, const ExprList *pB int res; Expr *pExprA = pA->a[i].pExpr; Expr *pExprB = pB->a[i].pExpr; - if( pA->a[i].sortFlags!=pB->a[i].sortFlags ) return 1; + if( pA->a[i].fg.sortFlags!=pB->a[i].fg.sortFlags ) return 1; if( (res = sqlite3ExprCompare(0, pExprA, pExprB, iTab)) ) return res; } return 0; @@ -108073,8 +114388,8 @@ SQLITE_PRIVATE int sqlite3ExprListCompare(const ExprList *pA, const ExprList *pB */ SQLITE_PRIVATE int sqlite3ExprCompareSkip(Expr *pA,Expr *pB, int iTab){ return sqlite3ExprCompare(0, - sqlite3ExprSkipCollateAndLikely(pA), - sqlite3ExprSkipCollateAndLikely(pB), + sqlite3ExprSkipCollate(pA), + sqlite3ExprSkipCollate(pB), iTab); } @@ -108167,7 +114482,7 @@ static int exprImpliesNotNull( ** pE1: x!=123 pE2: x IS NOT NULL Result: true ** pE1: x!=?1 pE2: x IS NOT NULL Result: true ** pE1: x IS NULL pE2: x IS NOT NULL Result: false -** pE1: x IS ?2 pE2: x IS NOT NULL Reuslt: false +** pE1: x IS ?2 pE2: x IS NOT NULL Result: false ** ** When comparing TK_COLUMN nodes between pE1 and pE2, if pE2 has ** Expr.iTable<0 then assume a table number given by iTab. @@ -108204,11 +114519,29 @@ SQLITE_PRIVATE int sqlite3ExprImpliesExpr( return 0; } +/* This is a helper function to impliesNotNullRow(). In this routine, +** set pWalker->eCode to one only if *both* of the input expressions +** separately have the implies-not-null-row property. +*/ +static void bothImplyNotNullRow(Walker *pWalker, Expr *pE1, Expr *pE2){ + if( pWalker->eCode==0 ){ + sqlite3WalkExpr(pWalker, pE1); + if( pWalker->eCode ){ + pWalker->eCode = 0; + sqlite3WalkExpr(pWalker, pE2); + } + } +} + /* ** This is the Expr node callback for sqlite3ExprImpliesNonNullRow(). ** If the expression node requires that the table at pWalker->iCur ** have one or more non-NULL column, then set pWalker->eCode to 1 and abort. ** +** pWalker->mWFlags is non-zero if this inquiry is being undertaking on +** behalf of a RIGHT JOIN (or FULL JOIN). That makes a difference when +** evaluating terms in the ON clause of an inner join. +** ** This routine controls an optimization. False positives (setting ** pWalker->eCode to 1 when it should not be) are deadly, but false-negatives ** (never setting pWalker->eCode) is a harmless missed optimization. @@ -108216,29 +114549,34 @@ SQLITE_PRIVATE int sqlite3ExprImpliesExpr( static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){ testcase( pExpr->op==TK_AGG_COLUMN ); testcase( pExpr->op==TK_AGG_FUNCTION ); - if( ExprHasProperty(pExpr, EP_FromJoin) ) return WRC_Prune; + if( ExprHasProperty(pExpr, EP_OuterON) ) return WRC_Prune; + if( ExprHasProperty(pExpr, EP_InnerON) && pWalker->mWFlags ){ + /* If iCur is used in an inner-join ON clause to the left of a + ** RIGHT JOIN, that does *not* mean that the table must be non-null. + ** But it is difficult to check for that condition precisely. + ** To keep things simple, any use of iCur from any inner-join is + ** ignored while attempting to simplify a RIGHT JOIN. */ + return WRC_Prune; + } switch( pExpr->op ){ case TK_ISNOT: case TK_ISNULL: case TK_NOTNULL: case TK_IS: - case TK_OR: case TK_VECTOR: - case TK_CASE: - case TK_IN: case TK_FUNCTION: case TK_TRUTH: + case TK_CASE: testcase( pExpr->op==TK_ISNOT ); testcase( pExpr->op==TK_ISNULL ); testcase( pExpr->op==TK_NOTNULL ); testcase( pExpr->op==TK_IS ); - testcase( pExpr->op==TK_OR ); testcase( pExpr->op==TK_VECTOR ); - testcase( pExpr->op==TK_CASE ); - testcase( pExpr->op==TK_IN ); testcase( pExpr->op==TK_FUNCTION ); testcase( pExpr->op==TK_TRUTH ); + testcase( pExpr->op==TK_CASE ); return WRC_Prune; + case TK_COLUMN: if( pWalker->u.iCur==pExpr->iTable ){ pWalker->eCode = 1; @@ -108246,21 +114584,38 @@ static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){ } return WRC_Prune; + case TK_OR: case TK_AND: - if( pWalker->eCode==0 ){ + /* Both sides of an AND or OR must separately imply non-null-row. + ** Consider these cases: + ** 1. NOT (x AND y) + ** 2. x OR y + ** If only one of x or y is non-null-row, then the overall expression + ** can be true if the other arm is false (case 1) or true (case 2). + */ + testcase( pExpr->op==TK_OR ); + testcase( pExpr->op==TK_AND ); + bothImplyNotNullRow(pWalker, pExpr->pLeft, pExpr->pRight); + return WRC_Prune; + + case TK_IN: + /* Beware of "x NOT IN ()" and "x NOT IN (SELECT 1 WHERE false)", + ** both of which can be true. But apart from these cases, if + ** the left-hand side of the IN is NULL then the IN itself will be + ** NULL. */ + if( ExprUseXList(pExpr) && ALWAYS(pExpr->x.pList->nExpr>0) ){ sqlite3WalkExpr(pWalker, pExpr->pLeft); - if( pWalker->eCode ){ - pWalker->eCode = 0; - sqlite3WalkExpr(pWalker, pExpr->pRight); - } } return WRC_Prune; case TK_BETWEEN: - if( sqlite3WalkExpr(pWalker, pExpr->pLeft)==WRC_Abort ){ - assert( pWalker->eCode ); - return WRC_Abort; - } + /* In "x NOT BETWEEN y AND z" either x must be non-null-row or else + ** both y and z must be non-null row */ + assert( ExprUseXList(pExpr) ); + assert( pExpr->x.pList->nExpr==2 ); + sqlite3WalkExpr(pWalker, pExpr->pLeft); + bothImplyNotNullRow(pWalker, pExpr->x.pList->a[0].pExpr, + pExpr->x.pList->a[1].pExpr); return WRC_Prune; /* Virtual tables are allowed to use constraints like x=NULL. So @@ -108285,10 +114640,10 @@ static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){ assert( pLeft->op!=TK_COLUMN || ExprUseYTab(pLeft) ); assert( pRight->op!=TK_COLUMN || ExprUseYTab(pRight) ); if( (pLeft->op==TK_COLUMN - && pLeft->y.pTab!=0 + && ALWAYS(pLeft->y.pTab!=0) && IsVirtual(pLeft->y.pTab)) || (pRight->op==TK_COLUMN - && pRight->y.pTab!=0 + && ALWAYS(pRight->y.pTab!=0) && IsVirtual(pRight->y.pTab)) ){ return WRC_Prune; @@ -108313,8 +114668,8 @@ static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){ ** False positives are not allowed, however. A false positive may result ** in an incorrect answer. ** -** Terms of p that are marked with EP_FromJoin (and hence that come from -** the ON or USING clauses of LEFT JOINS) are excluded from the analysis. +** Terms of p that are marked with EP_OuterON (and hence that come from +** the ON or USING clauses of OUTER JOINS) are excluded from the analysis. ** ** This routine is used to check if a LEFT JOIN can be converted into ** an ordinary JOIN. The p argument is the WHERE clause. If the WHERE @@ -108322,7 +114677,7 @@ static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){ ** be non-NULL, then the LEFT JOIN can be safely converted into an ** ordinary join. */ -SQLITE_PRIVATE int sqlite3ExprImpliesNonNullRow(Expr *p, int iTab){ +SQLITE_PRIVATE int sqlite3ExprImpliesNonNullRow(Expr *p, int iTab, int isRJ){ Walker w; p = sqlite3ExprSkipCollateAndLikely(p); if( p==0 ) return 0; @@ -108330,7 +114685,7 @@ SQLITE_PRIVATE int sqlite3ExprImpliesNonNullRow(Expr *p, int iTab){ p = p->pLeft; }else{ while( p->op==TK_AND ){ - if( sqlite3ExprImpliesNonNullRow(p->pLeft, iTab) ) return 1; + if( sqlite3ExprImpliesNonNullRow(p->pLeft, iTab, isRJ) ) return 1; p = p->pRight; } } @@ -108338,6 +114693,7 @@ SQLITE_PRIVATE int sqlite3ExprImpliesNonNullRow(Expr *p, int iTab){ w.xSelectCallback = 0; w.xSelectCallback2 = 0; w.eCode = 0; + w.mWFlags = isRJ!=0; w.u.iCur = iTab; sqlite3WalkExpr(&w, p); return w.eCode; @@ -108398,7 +114754,7 @@ SQLITE_PRIVATE int sqlite3ExprCoveredByIndex( } -/* Structure used to pass information throught the Walker in order to +/* Structure used to pass information throughout the Walker in order to ** implement sqlite3ReferencesSrcList(). */ struct RefSrcList { @@ -108493,6 +114849,7 @@ static int exprRefToSrcList(Walker *pWalker, Expr *pExpr){ SQLITE_PRIVATE int sqlite3ReferencesSrcList(Parse *pParse, Expr *pExpr, SrcList *pSrcList){ Walker w; struct RefSrcList x; + assert( pParse->db!=0 ); memset(&w, 0, sizeof(w)); memset(&x, 0, sizeof(x)); w.xExprCallback = exprRefToSrcList; @@ -108504,12 +114861,18 @@ SQLITE_PRIVATE int sqlite3ReferencesSrcList(Parse *pParse, Expr *pExpr, SrcList assert( pExpr->op==TK_AGG_FUNCTION ); assert( ExprUseXList(pExpr) ); sqlite3WalkExprList(&w, pExpr->x.pList); + if( pExpr->pLeft ){ + assert( pExpr->pLeft->op==TK_ORDER ); + assert( ExprUseXList(pExpr->pLeft) ); + assert( pExpr->pLeft->x.pList!=0 ); + sqlite3WalkExprList(&w, pExpr->pLeft->x.pList); + } #ifndef SQLITE_OMIT_WINDOWFUNC if( ExprHasProperty(pExpr, EP_WinFunc) ){ sqlite3WalkExpr(&w, pExpr->y.pWin->pFilter); } #endif - sqlite3DbFree(pParse->db, x.aiExclude); + if( x.aiExclude ) sqlite3DbNNFreeNN(pParse->db, x.aiExclude); if( w.eCode & 0x01 ){ return 1; }else if( w.eCode ){ @@ -108527,10 +114890,8 @@ SQLITE_PRIVATE int sqlite3ReferencesSrcList(Parse *pParse, Expr *pExpr, SrcList ** it does, make a copy. This is done because the pExpr argument is ** subject to change. ** -** The copy is stored on pParse->pConstExpr with a register number of 0. -** This will cause the expression to be deleted automatically when the -** Parse object is destroyed, but the zero register number means that it -** will not generate any code in the preamble. +** The copy is scheduled for deletion using the sqlite3ExprDeferredDelete() +** which builds on the sqlite3ParserAddCleanup() mechanism. */ static int agginfoPersistExprCb(Walker *pWalker, Expr *pExpr){ if( ALWAYS(!ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced)) @@ -108540,10 +114901,11 @@ static int agginfoPersistExprCb(Walker *pWalker, Expr *pExpr){ int iAgg = pExpr->iAgg; Parse *pParse = pWalker->pParse; sqlite3 *db = pParse->db; - assert( pExpr->op==TK_AGG_COLUMN || pExpr->op==TK_AGG_FUNCTION ); - if( pExpr->op==TK_AGG_COLUMN ){ - assert( iAgg>=0 && iAgg<pAggInfo->nColumn ); - if( pAggInfo->aCol[iAgg].pCExpr==pExpr ){ + assert( iAgg>=0 ); + if( pExpr->op!=TK_AGG_FUNCTION ){ + if( iAgg<pAggInfo->nColumn + && pAggInfo->aCol[iAgg].pCExpr==pExpr + ){ pExpr = sqlite3ExprDup(db, pExpr, 0); if( pExpr ){ pAggInfo->aCol[iAgg].pCExpr = pExpr; @@ -108551,8 +114913,10 @@ static int agginfoPersistExprCb(Walker *pWalker, Expr *pExpr){ } } }else{ - assert( iAgg>=0 && iAgg<pAggInfo->nFunc ); - if( pAggInfo->aFunc[iAgg].pFExpr==pExpr ){ + assert( pExpr->op==TK_AGG_FUNCTION ); + if( ALWAYS(iAgg<pAggInfo->nFunc) + && pAggInfo->aFunc[iAgg].pFExpr==pExpr + ){ pExpr = sqlite3ExprDup(db, pExpr, 0); if( pExpr ){ pAggInfo->aFunc[iAgg].pFExpr = pExpr; @@ -108608,6 +114972,74 @@ static int addAggInfoFunc(sqlite3 *db, AggInfo *pInfo){ } /* +** Search the AggInfo object for an aCol[] entry that has iTable and iColumn. +** Return the index in aCol[] of the entry that describes that column. +** +** If no prior entry is found, create a new one and return -1. The +** new column will have an index of pAggInfo->nColumn-1. +*/ +static void findOrCreateAggInfoColumn( + Parse *pParse, /* Parsing context */ + AggInfo *pAggInfo, /* The AggInfo object to search and/or modify */ + Expr *pExpr /* Expr describing the column to find or insert */ +){ + struct AggInfo_col *pCol; + int k; + + assert( pAggInfo->iFirstReg==0 ); + pCol = pAggInfo->aCol; + for(k=0; k<pAggInfo->nColumn; k++, pCol++){ + if( pCol->pCExpr==pExpr ) return; + if( pCol->iTable==pExpr->iTable + && pCol->iColumn==pExpr->iColumn + && pExpr->op!=TK_IF_NULL_ROW + ){ + goto fix_up_expr; + } + } + k = addAggInfoColumn(pParse->db, pAggInfo); + if( k<0 ){ + /* OOM on resize */ + assert( pParse->db->mallocFailed ); + return; + } + pCol = &pAggInfo->aCol[k]; + assert( ExprUseYTab(pExpr) ); + pCol->pTab = pExpr->y.pTab; + pCol->iTable = pExpr->iTable; + pCol->iColumn = pExpr->iColumn; + pCol->iSorterColumn = -1; + pCol->pCExpr = pExpr; + if( pAggInfo->pGroupBy && pExpr->op!=TK_IF_NULL_ROW ){ + int j, n; + ExprList *pGB = pAggInfo->pGroupBy; + struct ExprList_item *pTerm = pGB->a; + n = pGB->nExpr; + for(j=0; j<n; j++, pTerm++){ + Expr *pE = pTerm->pExpr; + if( pE->op==TK_COLUMN + && pE->iTable==pExpr->iTable + && pE->iColumn==pExpr->iColumn + ){ + pCol->iSorterColumn = j; + break; + } + } + } + if( pCol->iSorterColumn<0 ){ + pCol->iSorterColumn = pAggInfo->nSortingColumn++; + } +fix_up_expr: + ExprSetVVAProperty(pExpr, EP_NoReduce); + assert( pExpr->pAggInfo==0 || pExpr->pAggInfo==pAggInfo ); + pExpr->pAggInfo = pAggInfo; + if( pExpr->op==TK_COLUMN ){ + pExpr->op = TK_AGG_COLUMN; + } + pExpr->iAgg = (i16)k; +} + +/* ** This is the xExprCallback for a tree walker. It is used to ** implement sqlite3ExprAnalyzeAggregates(). See sqlite3ExprAnalyzeAggregates ** for additional information. @@ -108620,87 +115052,76 @@ static int analyzeAggregate(Walker *pWalker, Expr *pExpr){ AggInfo *pAggInfo = pNC->uNC.pAggInfo; assert( pNC->ncFlags & NC_UAggInfo ); + assert( pAggInfo->iFirstReg==0 ); switch( pExpr->op ){ + default: { + IndexedExpr *pIEpr; + Expr tmp; + assert( pParse->iSelfTab==0 ); + if( (pNC->ncFlags & NC_InAggFunc)==0 ) break; + if( pParse->pIdxEpr==0 ) break; + for(pIEpr=pParse->pIdxEpr; pIEpr; pIEpr=pIEpr->pIENext){ + int iDataCur = pIEpr->iDataCur; + if( iDataCur<0 ) continue; + if( sqlite3ExprCompare(0, pExpr, pIEpr->pExpr, iDataCur)==0 ) break; + } + if( pIEpr==0 ) break; + if( NEVER(!ExprUseYTab(pExpr)) ) break; + for(i=0; i<pSrcList->nSrc; i++){ + if( pSrcList->a[0].iCursor==pIEpr->iDataCur ) break; + } + if( i>=pSrcList->nSrc ) break; + if( NEVER(pExpr->pAggInfo!=0) ) break; /* Resolved by outer context */ + if( pParse->nErr ){ return WRC_Abort; } + + /* If we reach this point, it means that expression pExpr can be + ** translated into a reference to an index column as described by + ** pIEpr. + */ + memset(&tmp, 0, sizeof(tmp)); + tmp.op = TK_AGG_COLUMN; + tmp.iTable = pIEpr->iIdxCur; + tmp.iColumn = pIEpr->iIdxCol; + findOrCreateAggInfoColumn(pParse, pAggInfo, &tmp); + if( pParse->nErr ){ return WRC_Abort; } + assert( pAggInfo->aCol!=0 ); + assert( tmp.iAgg<pAggInfo->nColumn ); + pAggInfo->aCol[tmp.iAgg].pCExpr = pExpr; + pExpr->pAggInfo = pAggInfo; + pExpr->iAgg = tmp.iAgg; + return WRC_Prune; + } + case TK_IF_NULL_ROW: case TK_AGG_COLUMN: case TK_COLUMN: { testcase( pExpr->op==TK_AGG_COLUMN ); testcase( pExpr->op==TK_COLUMN ); + testcase( pExpr->op==TK_IF_NULL_ROW ); /* Check to see if the column is in one of the tables in the FROM ** clause of the aggregate query */ if( ALWAYS(pSrcList!=0) ){ SrcItem *pItem = pSrcList->a; for(i=0; i<pSrcList->nSrc; i++, pItem++){ - struct AggInfo_col *pCol; assert( !ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced) ); if( pExpr->iTable==pItem->iCursor ){ - /* If we reach this point, it means that pExpr refers to a table - ** that is in the FROM clause of the aggregate query. - ** - ** Make an entry for the column in pAggInfo->aCol[] if there - ** is not an entry there already. - */ - int k; - pCol = pAggInfo->aCol; - for(k=0; k<pAggInfo->nColumn; k++, pCol++){ - if( pCol->iTable==pExpr->iTable && - pCol->iColumn==pExpr->iColumn ){ - break; - } - } - if( (k>=pAggInfo->nColumn) - && (k = addAggInfoColumn(pParse->db, pAggInfo))>=0 - ){ - pCol = &pAggInfo->aCol[k]; - assert( ExprUseYTab(pExpr) ); - pCol->pTab = pExpr->y.pTab; - pCol->iTable = pExpr->iTable; - pCol->iColumn = pExpr->iColumn; - pCol->iMem = ++pParse->nMem; - pCol->iSorterColumn = -1; - pCol->pCExpr = pExpr; - if( pAggInfo->pGroupBy ){ - int j, n; - ExprList *pGB = pAggInfo->pGroupBy; - struct ExprList_item *pTerm = pGB->a; - n = pGB->nExpr; - for(j=0; j<n; j++, pTerm++){ - Expr *pE = pTerm->pExpr; - if( pE->op==TK_COLUMN && pE->iTable==pExpr->iTable && - pE->iColumn==pExpr->iColumn ){ - pCol->iSorterColumn = j; - break; - } - } - } - if( pCol->iSorterColumn<0 ){ - pCol->iSorterColumn = pAggInfo->nSortingColumn++; - } - } - /* There is now an entry for pExpr in pAggInfo->aCol[] (either - ** because it was there before or because we just created it). - ** Convert the pExpr to be a TK_AGG_COLUMN referring to that - ** pAggInfo->aCol[] entry. - */ - ExprSetVVAProperty(pExpr, EP_NoReduce); - pExpr->pAggInfo = pAggInfo; - pExpr->op = TK_AGG_COLUMN; - pExpr->iAgg = (i16)k; + findOrCreateAggInfoColumn(pParse, pAggInfo, pExpr); break; } /* endif pExpr->iTable==pItem->iCursor */ } /* end loop over pSrcList */ } - return WRC_Prune; + return WRC_Continue; } case TK_AGG_FUNCTION: { if( (pNC->ncFlags & NC_InAggFunc)==0 && pWalker->walkerDepth==pExpr->op2 + && pExpr->pAggInfo==0 ){ /* Check to see if pExpr is a duplicate of another aggregate ** function that is already in the pAggInfo structure */ struct AggInfo_func *pItem = pAggInfo->aFunc; for(i=0; i<pAggInfo->nFunc; i++, pItem++){ - if( pItem->pFExpr==pExpr ) break; + if( NEVER(pItem->pFExpr==pExpr) ) break; if( sqlite3ExprCompare(0, pItem->pFExpr, pExpr, -1)==0 ){ break; } @@ -108711,15 +115132,44 @@ static int analyzeAggregate(Walker *pWalker, Expr *pExpr){ u8 enc = ENC(pParse->db); i = addAggInfoFunc(pParse->db, pAggInfo); if( i>=0 ){ + int nArg; assert( !ExprHasProperty(pExpr, EP_xIsSelect) ); pItem = &pAggInfo->aFunc[i]; pItem->pFExpr = pExpr; - pItem->iMem = ++pParse->nMem; assert( ExprUseUToken(pExpr) ); + nArg = pExpr->x.pList ? pExpr->x.pList->nExpr : 0; pItem->pFunc = sqlite3FindFunction(pParse->db, - pExpr->u.zToken, - pExpr->x.pList ? pExpr->x.pList->nExpr : 0, enc, 0); - if( pExpr->flags & EP_Distinct ){ + pExpr->u.zToken, nArg, enc, 0); + assert( pItem->bOBUnique==0 ); + if( pExpr->pLeft + && (pItem->pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL)==0 + ){ + /* The NEEDCOLL test above causes any ORDER BY clause on + ** aggregate min() or max() to be ignored. */ + ExprList *pOBList; + assert( nArg>0 ); + assert( pExpr->pLeft->op==TK_ORDER ); + assert( ExprUseXList(pExpr->pLeft) ); + pItem->iOBTab = pParse->nTab++; + pOBList = pExpr->pLeft->x.pList; + assert( pOBList->nExpr>0 ); + assert( pItem->bOBUnique==0 ); + if( pOBList->nExpr==1 + && nArg==1 + && sqlite3ExprCompare(0,pOBList->a[0].pExpr, + pExpr->x.pList->a[0].pExpr,0)==0 + ){ + pItem->bOBPayload = 0; + pItem->bOBUnique = ExprHasProperty(pExpr, EP_Distinct); + }else{ + pItem->bOBPayload = 1; + } + pItem->bUseSubtype = + (pItem->pFunc->funcFlags & SQLITE_SUBTYPE)!=0; + }else{ + pItem->iOBTab = -1; + } + if( ExprHasProperty(pExpr, EP_Distinct) && !pItem->bOBUnique ){ pItem->iDistinct = pParse->nTab++; }else{ pItem->iDistinct = -1; @@ -108844,6 +115294,37 @@ SQLITE_PRIVATE void sqlite3ClearTempRegCache(Parse *pParse){ } /* +** Make sure sufficient registers have been allocated so that +** iReg is a valid register number. +*/ +SQLITE_PRIVATE void sqlite3TouchRegister(Parse *pParse, int iReg){ + if( pParse->nMem<iReg ) pParse->nMem = iReg; +} + +#if defined(SQLITE_ENABLE_STAT4) || defined(SQLITE_DEBUG) +/* +** Return the latest reusable register in the set of all registers. +** The value returned is no less than iMin. If any register iMin or +** greater is in permanent use, then return one more than that last +** permanent register. +*/ +SQLITE_PRIVATE int sqlite3FirstAvailableRegister(Parse *pParse, int iMin){ + const ExprList *pList = pParse->pConstExpr; + if( pList ){ + int i; + for(i=0; i<pList->nExpr; i++){ + if( pList->a[i].u.iConstExprReg>=iMin ){ + iMin = pList->a[i].u.iConstExprReg + 1; + } + } + } + pParse->nTempReg = 0; + pParse->nRangeReg = 0; + return iMin; +} +#endif /* SQLITE_ENABLE_STAT4 || SQLITE_DEBUG */ + +/* ** Validate that no temporary register falls within the range of ** iFirst..iLast, inclusive. This routine is only call from within assert() ** statements. @@ -108862,6 +115343,14 @@ SQLITE_PRIVATE int sqlite3NoTempsInRange(Parse *pParse, int iFirst, int iLast){ return 0; } } + if( pParse->pConstExpr ){ + ExprList *pList = pParse->pConstExpr; + for(i=0; i<pList->nExpr; i++){ + int iReg = pList->a[i].u.iConstExprReg; + if( iReg==0 ) continue; + if( iReg>=iFirst && iReg<=iLast ) return 0; + } + } return 1; } #endif /* SQLITE_DEBUG */ @@ -109316,14 +115805,19 @@ SQLITE_PRIVATE void sqlite3AlterFinishAddColumn(Parse *pParse, Token *pColDef){ /* Verify that constraints are still satisfied */ if( pNew->pCheck!=0 || (pCol->notNull && (pCol->colFlags & COLFLAG_GENERATED)!=0) + || (pTab->tabFlags & TF_Strict)!=0 ){ sqlite3NestedParse(pParse, "SELECT CASE WHEN quick_check GLOB 'CHECK*'" " THEN raise(ABORT,'CHECK constraint failed')" + " WHEN quick_check GLOB 'non-* value in*'" + " THEN raise(ABORT,'type mismatch on DEFAULT')" " ELSE raise(ABORT,'NOT NULL constraint failed')" " END" " FROM pragma_quick_check(%Q,%Q)" - " WHERE quick_check GLOB 'CHECK*' OR quick_check GLOB 'NULL*'", + " WHERE quick_check GLOB 'CHECK*'" + " OR quick_check GLOB 'NULL*'" + " OR quick_check GLOB 'non-* value in*'", zTab, zDb ); } @@ -109412,7 +115906,7 @@ SQLITE_PRIVATE void sqlite3AlterBeginAddColumn(Parse *pParse, SrcList *pSrc){ pNew->u.tab.pDfltList = sqlite3ExprListDup(db, pTab->u.tab.pDfltList, 0); pNew->pSchema = db->aDb[iDb].pSchema; pNew->u.tab.addColOffset = pTab->u.tab.addColOffset; - pNew->nTabRef = 1; + assert( pNew->nTabRef==1 ); exit_begin_add_column: sqlite3SrcListDelete(db, pSrc); @@ -109611,13 +116105,14 @@ static void renameTokenCheckAll(Parse *pParse, const void *pPtr){ assert( pParse->db->mallocFailed==0 || pParse->nErr!=0 ); if( pParse->nErr==0 ){ const RenameToken *p; - u8 i = 0; + u32 i = 1; for(p=pParse->pRename; p; p=p->pNext){ if( p->p ){ assert( p->p!=pPtr ); - i += *(u8*)(p->p); + i += *(u8*)(p->p) | 1; } } + assert( i>0 ); } } #else @@ -109728,11 +116223,10 @@ static void unmapColumnIdlistNames( Parse *pParse, const IdList *pIdList ){ - if( pIdList ){ - int ii; - for(ii=0; ii<pIdList->nId; ii++){ - sqlite3RenameTokenRemap(pParse, 0, (const void*)pIdList->a[ii].zName); - } + int ii; + assert( pIdList!=0 ); + for(ii=0; ii<pIdList->nId; ii++){ + sqlite3RenameTokenRemap(pParse, 0, (const void*)pIdList->a[ii].zName); } } @@ -109751,7 +116245,7 @@ static int renameUnmapSelectCb(Walker *pWalker, Select *p){ if( ALWAYS(p->pEList) ){ ExprList *pList = p->pEList; for(i=0; i<pList->nExpr; i++){ - if( pList->a[i].zEName && pList->a[i].eEName==ENAME_NAME ){ + if( pList->a[i].zEName && pList->a[i].fg.eEName==ENAME_NAME ){ sqlite3RenameTokenRemap(pParse, 0, (void*)pList->a[i].zEName); } } @@ -109760,8 +116254,11 @@ static int renameUnmapSelectCb(Walker *pWalker, Select *p){ SrcList *pSrc = p->pSrc; for(i=0; i<pSrc->nSrc; i++){ sqlite3RenameTokenRemap(pParse, 0, (void*)pSrc->a[i].zName); - sqlite3WalkExpr(pWalker, pSrc->a[i].pOn); - unmapColumnIdlistNames(pParse, pSrc->a[i].pUsing); + if( pSrc->a[i].fg.isUsing==0 ){ + sqlite3WalkExpr(pWalker, pSrc->a[i].u3.pOn); + }else{ + unmapColumnIdlistNames(pParse, pSrc->a[i].u3.pUsing); + } } } @@ -109797,7 +116294,7 @@ SQLITE_PRIVATE void sqlite3RenameExprlistUnmap(Parse *pParse, ExprList *pEList){ sWalker.xExprCallback = renameUnmapExprCb; sqlite3WalkExprList(&sWalker, pEList); for(i=0; i<pEList->nExpr; i++){ - if( ALWAYS(pEList->a[i].eEName==ENAME_NAME) ){ + if( ALWAYS(pEList->a[i].fg.eEName==ENAME_NAME) ){ sqlite3RenameTokenRemap(pParse, 0, (void*)pEList->a[i].zEName); } } @@ -109914,7 +116411,7 @@ static RenameToken *renameColumnTokenNext(RenameCtx *pCtx){ } /* -** An error occured while parsing or otherwise processing a database +** An error occurred while parsing or otherwise processing a database ** object (either pParse->pNewTable, pNewIndex or pNewTrigger) as part of an ** ALTER TABLE RENAME COLUMN program. The error message emitted by the ** sub-routine is currently stored in pParse->zErrMsg. This function @@ -109955,7 +116452,7 @@ static void renameColumnElistNames( int i; for(i=0; i<pEList->nExpr; i++){ const char *zName = pEList->a[i].zEName; - if( ALWAYS(pEList->a[i].eEName==ENAME_NAME) + if( ALWAYS(pEList->a[i].fg.eEName==ENAME_NAME) && ALWAYS(zName!=0) && 0==sqlite3_stricmp(zName, zOld) ){ @@ -110147,6 +116644,19 @@ static int renameEditSql( } /* +** Set all pEList->a[].fg.eEName fields in the expression-list to val. +*/ +static void renameSetENames(ExprList *pEList, int val){ + if( pEList ){ + int i; + for(i=0; i<pEList->nExpr; i++){ + assert( val==ENAME_NAME || pEList->a[i].fg.eEName==ENAME_NAME ); + pEList->a[i].fg.eEName = val; + } + } +} + +/* ** Resolve all symbols in the trigger at pParse->pNewTrigger, assuming ** it was read from the schema of database zDb. Return SQLITE_OK if ** successful. Otherwise, return an SQLite error code and leave an error @@ -110185,27 +116695,43 @@ static int renameResolveTrigger(Parse *pParse){ if( rc==SQLITE_OK && pStep->zTarget ){ SrcList *pSrc = sqlite3TriggerStepSrc(pParse, pStep); if( pSrc ){ - int i; - for(i=0; i<pSrc->nSrc && rc==SQLITE_OK; i++){ - SrcItem *p = &pSrc->a[i]; - p->iCursor = pParse->nTab++; - if( p->pSelect ){ - sqlite3SelectPrep(pParse, p->pSelect, 0); - sqlite3ExpandSubquery(pParse, p); - assert( i>0 ); - assert( pStep->pFrom->a[i-1].pSelect ); - sqlite3SelectPrep(pParse, pStep->pFrom->a[i-1].pSelect, 0); - }else{ - p->pTab = sqlite3LocateTableItem(pParse, 0, p); - if( p->pTab==0 ){ - rc = SQLITE_ERROR; - }else{ - p->pTab->nTabRef++; - rc = sqlite3ViewGetColumnNames(pParse, p->pTab); + Select *pSel = sqlite3SelectNew( + pParse, pStep->pExprList, pSrc, 0, 0, 0, 0, 0, 0 + ); + if( pSel==0 ){ + pStep->pExprList = 0; + pSrc = 0; + rc = SQLITE_NOMEM; + }else{ + /* pStep->pExprList contains an expression-list used for an UPDATE + ** statement. So the a[].zEName values are the RHS of the + ** "<col> = <expr>" clauses of the UPDATE statement. So, before + ** running SelectPrep(), change all the eEName values in + ** pStep->pExprList to ENAME_SPAN (from their current value of + ** ENAME_NAME). This is to prevent any ids in ON() clauses that are + ** part of pSrc from being incorrectly resolved against the + ** a[].zEName values as if they were column aliases. */ + renameSetENames(pStep->pExprList, ENAME_SPAN); + sqlite3SelectPrep(pParse, pSel, 0); + renameSetENames(pStep->pExprList, ENAME_NAME); + rc = pParse->nErr ? SQLITE_ERROR : SQLITE_OK; + assert( pStep->pExprList==0 || pStep->pExprList==pSel->pEList ); + assert( pSrc==pSel->pSrc ); + if( pStep->pExprList ) pSel->pEList = 0; + pSel->pSrc = 0; + sqlite3SelectDelete(db, pSel); + } + if( pStep->pFrom ){ + int i; + for(i=0; i<pStep->pFrom->nSrc && rc==SQLITE_OK; i++){ + SrcItem *p = &pStep->pFrom->a[i]; + if( p->pSelect ){ + sqlite3SelectPrep(pParse, p->pSelect, 0); } } } - if( rc==SQLITE_OK && db->mallocFailed ){ + + if( db->mallocFailed ){ rc = SQLITE_NOMEM; } sNC.pSrcList = pSrc; @@ -110657,6 +117183,15 @@ static void renameTableFunc( if( pStep->zTarget && 0==sqlite3_stricmp(pStep->zTarget, zOld) ){ renameTokenFind(&sParse, &sCtx, pStep->zTarget); } + if( pStep->pFrom ){ + int i; + for(i=0; i<pStep->pFrom->nSrc; i++){ + SrcItem *pItem = &pStep->pFrom->a[i]; + if( 0==sqlite3_stricmp(pItem->zName, zOld) ){ + renameTokenFind(&sParse, &sCtx, pItem->zName); + } + } + } } } } @@ -111397,9 +117932,9 @@ static void openStatTable( typedef struct StatAccum StatAccum; typedef struct StatSample StatSample; struct StatSample { - tRowcnt *anEq; /* sqlite_stat4.nEq */ tRowcnt *anDLt; /* sqlite_stat4.nDLt */ #ifdef SQLITE_ENABLE_STAT4 + tRowcnt *anEq; /* sqlite_stat4.nEq */ tRowcnt *anLt; /* sqlite_stat4.nLt */ union { i64 iRowid; /* Rowid in main table of the key */ @@ -111557,9 +118092,9 @@ static void statInit( /* Allocate the space required for the StatAccum object */ n = sizeof(*p) - + sizeof(tRowcnt)*nColUp /* StatAccum.anEq */ - + sizeof(tRowcnt)*nColUp; /* StatAccum.anDLt */ + + sizeof(tRowcnt)*nColUp; /* StatAccum.anDLt */ #ifdef SQLITE_ENABLE_STAT4 + n += sizeof(tRowcnt)*nColUp; /* StatAccum.anEq */ if( mxSample ){ n += sizeof(tRowcnt)*nColUp /* StatAccum.anLt */ + sizeof(StatSample)*(nCol+mxSample) /* StatAccum.aBest[], a[] */ @@ -111580,9 +118115,9 @@ static void statInit( p->nKeyCol = nKeyCol; p->nSkipAhead = 0; p->current.anDLt = (tRowcnt*)&p[1]; - p->current.anEq = &p->current.anDLt[nColUp]; #ifdef SQLITE_ENABLE_STAT4 + p->current.anEq = &p->current.anDLt[nColUp]; p->mxSample = p->nLimit==0 ? mxSample : 0; if( mxSample ){ u8 *pSpace; /* Allocated space not yet assigned */ @@ -111849,7 +118384,9 @@ static void statPush( if( p->nRow==0 ){ /* This is the first call to this function. Do initialization. */ +#ifdef SQLITE_ENABLE_STAT4 for(i=0; i<p->nCol; i++) p->current.anEq[i] = 1; +#endif }else{ /* Second and subsequent calls get processed here */ #ifdef SQLITE_ENABLE_STAT4 @@ -111858,15 +118395,17 @@ static void statPush( /* Update anDLt[], anLt[] and anEq[] to reflect the values that apply ** to the current row of the index. */ +#ifdef SQLITE_ENABLE_STAT4 for(i=0; i<iChng; i++){ p->current.anEq[i]++; } +#endif for(i=iChng; i<p->nCol; i++){ p->current.anDLt[i]++; #ifdef SQLITE_ENABLE_STAT4 if( p->mxSample ) p->current.anLt[i] += p->current.anEq[i]; -#endif p->current.anEq[i] = 1; +#endif } } @@ -111980,9 +118519,14 @@ static void statGet( ** * "WHERE a=? AND b=?" matches 2 rows. ** ** If D is the count of distinct values and K is the total number of - ** rows, then each estimate is computed as: + ** rows, then each estimate is usually computed as: ** ** I = (K+D-1)/D + ** + ** In other words, I is K/D rounded up to the next whole integer. + ** However, if I is between 1.0 and 1.1 (in other words if I is + ** close to 1.0 but just a little larger) then do not round up but + ** instead keep the I value at 1.0. */ sqlite3_str sStat; /* Text of the constructed "stat" line */ int i; /* Loop counter */ @@ -111993,8 +118537,11 @@ static void statGet( for(i=0; i<p->nKeyCol; i++){ u64 nDistinct = p->current.anDLt[i] + 1; u64 iVal = (p->nRow + nDistinct - 1) / nDistinct; + if( iVal==2 && p->nRow*10 <= nDistinct*11 ) iVal = 1; sqlite3_str_appendf(&sStat, " %llu", iVal); +#ifdef SQLITE_ENABLE_STAT4 assert( p->current.anEq[i] ); +#endif } sqlite3ResultStrAccum(context, &sStat); } @@ -112080,6 +118627,7 @@ static void analyzeVdbeCommentIndexWithColumnName( if( NEVER(i==XN_ROWID) ){ VdbeComment((v,"%s.rowid",pIdx->zName)); }else if( i==XN_EXPR ){ + assert( pIdx->bHasExpr ); VdbeComment((v,"%s.expr(%d)",pIdx->zName, k)); }else{ VdbeComment((v,"%s.%s", pIdx->zName, pIdx->pTable->aCol[i].zCnName)); @@ -112120,11 +118668,15 @@ static void analyzeOneTable( int regIdxname = iMem++; /* Register containing index name */ int regStat1 = iMem++; /* Value for the stat column of sqlite_stat1 */ int regPrev = iMem; /* MUST BE LAST (see below) */ +#ifdef SQLITE_ENABLE_STAT4 + int doOnce = 1; /* Flag for a one-time computation */ +#endif #ifdef SQLITE_ENABLE_PREUPDATE_HOOK Table *pStat1 = 0; #endif - pParse->nMem = MAX(pParse->nMem, iMem); + sqlite3TouchRegister(pParse, iMem); + assert( sqlite3NoTempsInRange(pParse, regNewRowid, iMem) ); v = sqlite3GetVdbe(pParse); if( v==0 || NEVER(pTab==0) ){ return; @@ -112156,7 +118708,7 @@ static void analyzeOneTable( memcpy(pStat1->zName, "sqlite_stat1", 13); pStat1->nCol = 3; pStat1->iPKey = -1; - sqlite3VdbeAddOp4(pParse->pVdbe, OP_Noop, 0, 0, 0,(char*)pStat1,P4_DYNBLOB); + sqlite3VdbeAddOp4(pParse->pVdbe, OP_Noop, 0, 0, 0,(char*)pStat1,P4_DYNAMIC); } #endif @@ -112230,7 +118782,7 @@ static void analyzeOneTable( ** the regPrev array and a trailing rowid (the rowid slot is required ** when building a record to insert into the sample column of ** the sqlite_stat4 table. */ - pParse->nMem = MAX(pParse->nMem, regPrev+nColTest); + sqlite3TouchRegister(pParse, regPrev+nColTest); /* Open a read-only cursor on the index being analyzed. */ assert( iDb==sqlite3SchemaToIndex(db, pIdx->pSchema) ); @@ -112402,7 +118954,35 @@ static void analyzeOneTable( int addrIsNull; u8 seekOp = HasRowid(pTab) ? OP_NotExists : OP_NotFound; - pParse->nMem = MAX(pParse->nMem, regCol+nCol); + if( doOnce ){ + int mxCol = nCol; + Index *pX; + + /* Compute the maximum number of columns in any index */ + for(pX=pTab->pIndex; pX; pX=pX->pNext){ + int nColX; /* Number of columns in pX */ + if( !HasRowid(pTab) && IsPrimaryKeyIndex(pX) ){ + nColX = pX->nKeyCol; + }else{ + nColX = pX->nColumn; + } + if( nColX>mxCol ) mxCol = nColX; + } + + /* Allocate space to compute results for the largest index */ + sqlite3TouchRegister(pParse, regCol+mxCol); + doOnce = 0; +#ifdef SQLITE_DEBUG + /* Verify that the call to sqlite3ClearTempRegCache() below + ** really is needed. + ** https://sqlite.org/forum/forumpost/83cb4a95a0 (2023-03-25) + */ + testcase( !sqlite3NoTempsInRange(pParse, regEq, regCol+mxCol) ); +#endif + sqlite3ClearTempRegCache(pParse); /* tag-20230325-1 */ + assert( sqlite3NoTempsInRange(pParse, regEq, regCol+mxCol) ); + } + assert( sqlite3NoTempsInRange(pParse, regEq, regCol+nCol) ); addrNext = sqlite3VdbeCurrentAddr(v); callStatGet(pParse, regStat, STAT_GET_ROWID, regSampleRowid); @@ -112483,6 +119063,11 @@ static void analyzeDatabase(Parse *pParse, int iDb){ for(k=sqliteHashFirst(&pSchema->tblHash); k; k=sqliteHashNext(k)){ Table *pTab = (Table*)sqliteHashData(k); analyzeOneTable(pParse, pTab, 0, iStatCur, iMem, iTab); +#ifdef SQLITE_ENABLE_STAT4 + iMem = sqlite3FirstAvailableRegister(pParse, iMem); +#else + assert( iMem==sqlite3FirstAvailableRegister(pParse,iMem) ); +#endif } loadAnalysis(pParse, iDb); } @@ -112645,6 +119230,16 @@ static void decodeIntArray( while( z[0]!=0 && z[0]!=' ' ) z++; while( z[0]==' ' ) z++; } + + /* Set the bLowQual flag if the peak number of rows obtained + ** from a full equality match is so large that a full table scan + ** seems likely to be faster than using the index. + */ + if( aLog[0] > 66 /* Index has more than 100 rows */ + && aLog[0] <= aLog[nOut-1] /* And only a single value seen */ + ){ + pIndex->bLowQual = 1; + } } } @@ -112723,6 +119318,8 @@ static int analysisLoader(void *pData, int argc, char **argv, char **NotUsed){ ** and its contents. */ SQLITE_PRIVATE void sqlite3DeleteIndexSamples(sqlite3 *db, Index *pIdx){ + assert( db!=0 ); + assert( pIdx!=0 ); #ifdef SQLITE_ENABLE_STAT4 if( pIdx->aSample ){ int j; @@ -112732,7 +119329,7 @@ SQLITE_PRIVATE void sqlite3DeleteIndexSamples(sqlite3 *db, Index *pIdx){ } sqlite3DbFree(db, pIdx->aSample); } - if( db && db->pnBytesFreed==0 ){ + if( db->pnBytesFreed==0 ){ pIdx->nSample = 0; pIdx->aSample = 0; } @@ -112868,6 +119465,10 @@ static int loadStatTbl( pIdx = findIndexOrPrimaryKey(db, zIndex, zDb); assert( pIdx==0 || pIdx->nSample==0 ); if( pIdx==0 ) continue; + if( pIdx->aSample!=0 ){ + /* The same index appears in sqlite_stat4 under multiple names */ + continue; + } assert( !HasRowid(pIdx->pTable) || pIdx->nColumn==pIdx->nKeyCol+1 ); if( !HasRowid(pIdx->pTable) && IsPrimaryKeyIndex(pIdx) ){ nIdxCol = pIdx->nKeyCol; @@ -112875,6 +119476,7 @@ static int loadStatTbl( nIdxCol = pIdx->nColumn; } pIdx->nSampleCol = nIdxCol; + pIdx->mxSample = nSample; nByte = sizeof(IndexSample) * nSample; nByte += sizeof(tRowcnt) * nIdxCol * 3 * nSample; nByte += nIdxCol * sizeof(tRowcnt); /* Space for Index.aAvgEq[] */ @@ -112914,6 +119516,11 @@ static int loadStatTbl( if( zIndex==0 ) continue; pIdx = findIndexOrPrimaryKey(db, zIndex, zDb); if( pIdx==0 ) continue; + if( pIdx->nSample>=pIdx->mxSample ){ + /* Too many slots used because the same index appears in + ** sqlite_stat4 using multiple names */ + continue; + } /* This next condition is true if data has already been loaded from ** the sqlite_stat4 table. */ nCol = pIdx->nSampleCol; @@ -112926,14 +119533,15 @@ static int loadStatTbl( decodeIntArray((char*)sqlite3_column_text(pStmt,2),nCol,pSample->anLt,0,0); decodeIntArray((char*)sqlite3_column_text(pStmt,3),nCol,pSample->anDLt,0,0); - /* Take a copy of the sample. Add two 0x00 bytes the end of the buffer. + /* Take a copy of the sample. Add 8 extra 0x00 bytes the end of the buffer. ** This is in case the sample record is corrupted. In that case, the ** sqlite3VdbeRecordCompare() may read up to two varints past the ** end of the allocated buffer before it realizes it is dealing with - ** a corrupt record. Adding the two 0x00 bytes prevents this from causing + ** a corrupt record. Or it might try to read a large integer from the + ** buffer. In any case, eight 0x00 bytes prevents this from causing ** a buffer overread. */ pSample->n = sqlite3_column_bytes(pStmt, 4); - pSample->p = sqlite3DbMallocZero(db, pSample->n + 2); + pSample->p = sqlite3DbMallocZero(db, pSample->n + 8); if( pSample->p==0 ){ sqlite3_finalize(pStmt); return SQLITE_NOMEM_BKPT; @@ -112957,11 +119565,12 @@ static int loadStat4(sqlite3 *db, const char *zDb){ const Table *pStat4; assert( db->lookaside.bDisable ); - if( (pStat4 = sqlite3FindTable(db, "sqlite_stat4", zDb))!=0 + if( OptimizationEnabled(db, SQLITE_Stat4) + && (pStat4 = sqlite3FindTable(db, "sqlite_stat4", zDb))!=0 && IsOrdinaryTable(pStat4) ){ rc = loadStatTbl(db, - "SELECT idx,count(*) FROM %Q.sqlite_stat4 GROUP BY idx", + "SELECT idx,count(*) FROM %Q.sqlite_stat4 GROUP BY idx COLLATE nocase", "SELECT idx,neq,nlt,ndlt,sample FROM %Q.sqlite_stat4", zDb ); @@ -113151,7 +119760,7 @@ static void attachFunc( char *zErr = 0; unsigned int flags; Db *aNew; /* New array of Db pointers */ - Db *pNew; /* Db object for the newly attached database */ + Db *pNew = 0; /* Db object for the newly attached database */ char *zErrDyn = 0; sqlite3_vfs *pVfs; @@ -113171,13 +119780,26 @@ static void attachFunc( /* This is not a real ATTACH. Instead, this routine is being called ** from sqlite3_deserialize() to close database db->init.iDb and ** reopen it as a MemDB */ + Btree *pNewBt = 0; pVfs = sqlite3_vfs_find("memdb"); if( pVfs==0 ) return; - pNew = &db->aDb[db->init.iDb]; - if( pNew->pBt ) sqlite3BtreeClose(pNew->pBt); - pNew->pBt = 0; - pNew->pSchema = 0; - rc = sqlite3BtreeOpen(pVfs, "x\0", db, &pNew->pBt, 0, SQLITE_OPEN_MAIN_DB); + rc = sqlite3BtreeOpen(pVfs, "x\0", db, &pNewBt, 0, SQLITE_OPEN_MAIN_DB); + if( rc==SQLITE_OK ){ + Schema *pNewSchema = sqlite3SchemaGet(db, pNewBt); + if( pNewSchema ){ + /* Both the Btree and the new Schema were allocated successfully. + ** Close the old db and update the aDb[] slot with the new memdb + ** values. */ + pNew = &db->aDb[db->init.iDb]; + if( ALWAYS(pNew->pBt) ) sqlite3BtreeClose(pNew->pBt); + pNew->pBt = pNewBt; + pNew->pSchema = pNewSchema; + }else{ + sqlite3BtreeClose(pNewBt); + rc = SQLITE_NOMEM; + } + } + if( rc ) goto attach_error; }else{ /* This is a real ATTACH ** @@ -113290,7 +119912,7 @@ static void attachFunc( } #endif if( rc ){ - if( !REOPEN_AS_MEMDB(db) ){ + if( ALWAYS(!REOPEN_AS_MEMDB(db)) ){ int iDb = db->nDb - 1; assert( iDb>=2 ); if( db->aDb[iDb].pBt ){ @@ -113407,6 +120029,8 @@ static void codeAttach( sqlite3* db = pParse->db; int regArgs; + if( SQLITE_OK!=sqlite3ReadSchema(pParse) ) goto attach_end; + if( pParse->nErr ) goto attach_end; memset(&sName, 0, sizeof(NameContext)); sName.pParse = pParse; @@ -113546,7 +120170,11 @@ static int fixSelectCb(Walker *p, Select *pSelect){ pItem->fg.fromDDL = 1; } #if !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_TRIGGER) - if( sqlite3WalkExpr(&pFix->w, pList->a[i].pOn) ) return WRC_Abort; + if( pList->a[i].fg.isUsing==0 + && sqlite3WalkExpr(&pFix->w, pList->a[i].u3.pOn) + ){ + return WRC_Abort; + } #endif } if( pSelect->pWith ){ @@ -113871,7 +120499,7 @@ SQLITE_PRIVATE int sqlite3AuthCheck( sqlite3 *db = pParse->db; int rc; - /* Don't do any authorization checks if the database is initialising + /* Don't do any authorization checks if the database is initializing ** or if the parser is being invoked from within sqlite3_declare_vtab. */ assert( !IN_RENAME_OBJECT || db->xAuth==0 ); @@ -114078,6 +120706,7 @@ SQLITE_PRIVATE int sqlite3DbMaskAllZero(yDbMask m){ SQLITE_PRIVATE void sqlite3FinishCoding(Parse *pParse){ sqlite3 *db; Vdbe *v; + int iDb, i; assert( pParse->pToplevel==0 ); db = pParse->db; @@ -114107,12 +120736,9 @@ SQLITE_PRIVATE void sqlite3FinishCoding(Parse *pParse){ if( pParse->bReturning ){ Returning *pReturning = pParse->u1.pReturning; int addrRewind; - int i; int reg; - if( NEVER(pReturning->nRetCol==0) ){ - assert( CORRUPT_DB ); - }else{ + if( pReturning->nRetCol ){ sqlite3VdbeAddOp0(v, OP_FkCheck); addrRewind = sqlite3VdbeAddOp1(v, OP_Rewind, pReturning->iRetCur); @@ -114146,76 +120772,66 @@ SQLITE_PRIVATE void sqlite3FinishCoding(Parse *pParse){ ** transaction on each used database and to verify the schema cookie ** on each used database. */ - if( db->mallocFailed==0 - && (DbMaskNonZero(pParse->cookieMask) || pParse->pConstExpr) - ){ - int iDb, i; - assert( sqlite3VdbeGetOp(v, 0)->opcode==OP_Init ); - sqlite3VdbeJumpHere(v, 0); - for(iDb=0; iDb<db->nDb; iDb++){ - Schema *pSchema; - if( DbMaskTest(pParse->cookieMask, iDb)==0 ) continue; - sqlite3VdbeUsesBtree(v, iDb); - pSchema = db->aDb[iDb].pSchema; - sqlite3VdbeAddOp4Int(v, - OP_Transaction, /* Opcode */ - iDb, /* P1 */ - DbMaskTest(pParse->writeMask,iDb), /* P2 */ - pSchema->schema_cookie, /* P3 */ - pSchema->iGeneration /* P4 */ - ); - if( db->init.busy==0 ) sqlite3VdbeChangeP5(v, 1); - VdbeComment((v, - "usesStmtJournal=%d", pParse->mayAbort && pParse->isMultiWrite)); - } + assert( pParse->nErr>0 || sqlite3VdbeGetOp(v, 0)->opcode==OP_Init ); + sqlite3VdbeJumpHere(v, 0); + assert( db->nDb>0 ); + iDb = 0; + do{ + Schema *pSchema; + if( DbMaskTest(pParse->cookieMask, iDb)==0 ) continue; + sqlite3VdbeUsesBtree(v, iDb); + pSchema = db->aDb[iDb].pSchema; + sqlite3VdbeAddOp4Int(v, + OP_Transaction, /* Opcode */ + iDb, /* P1 */ + DbMaskTest(pParse->writeMask,iDb), /* P2 */ + pSchema->schema_cookie, /* P3 */ + pSchema->iGeneration /* P4 */ + ); + if( db->init.busy==0 ) sqlite3VdbeChangeP5(v, 1); + VdbeComment((v, + "usesStmtJournal=%d", pParse->mayAbort && pParse->isMultiWrite)); + }while( ++iDb<db->nDb ); #ifndef SQLITE_OMIT_VIRTUALTABLE - for(i=0; i<pParse->nVtabLock; i++){ - char *vtab = (char *)sqlite3GetVTable(db, pParse->apVtabLock[i]); - sqlite3VdbeAddOp4(v, OP_VBegin, 0, 0, 0, vtab, P4_VTAB); - } - pParse->nVtabLock = 0; + for(i=0; i<pParse->nVtabLock; i++){ + char *vtab = (char *)sqlite3GetVTable(db, pParse->apVtabLock[i]); + sqlite3VdbeAddOp4(v, OP_VBegin, 0, 0, 0, vtab, P4_VTAB); + } + pParse->nVtabLock = 0; #endif - /* Once all the cookies have been verified and transactions opened, - ** obtain the required table-locks. This is a no-op unless the - ** shared-cache feature is enabled. - */ - codeTableLocks(pParse); +#ifndef SQLITE_OMIT_SHARED_CACHE + /* Once all the cookies have been verified and transactions opened, + ** obtain the required table-locks. This is a no-op unless the + ** shared-cache feature is enabled. + */ + if( pParse->nTableLock ) codeTableLocks(pParse); +#endif - /* Initialize any AUTOINCREMENT data structures required. - */ - sqlite3AutoincrementBegin(pParse); + /* Initialize any AUTOINCREMENT data structures required. + */ + if( pParse->pAinc ) sqlite3AutoincrementBegin(pParse); - /* Code constant expressions that where factored out of inner loops. - ** - ** The pConstExpr list might also contain expressions that we simply - ** want to keep around until the Parse object is deleted. Such - ** expressions have iConstExprReg==0. Do not generate code for - ** those expressions, of course. - */ - if( pParse->pConstExpr ){ - ExprList *pEL = pParse->pConstExpr; - pParse->okConstFactor = 0; - for(i=0; i<pEL->nExpr; i++){ - int iReg = pEL->a[i].u.iConstExprReg; - if( iReg>0 ){ - sqlite3ExprCode(pParse, pEL->a[i].pExpr, iReg); - } - } + /* Code constant expressions that were factored out of inner loops. + */ + if( pParse->pConstExpr ){ + ExprList *pEL = pParse->pConstExpr; + pParse->okConstFactor = 0; + for(i=0; i<pEL->nExpr; i++){ + assert( pEL->a[i].u.iConstExprReg>0 ); + sqlite3ExprCode(pParse, pEL->a[i].pExpr, pEL->a[i].u.iConstExprReg); } + } - if( pParse->bReturning ){ - Returning *pRet = pParse->u1.pReturning; - if( NEVER(pRet->nRetCol==0) ){ - assert( CORRUPT_DB ); - }else{ - sqlite3VdbeAddOp2(v, OP_OpenEphemeral, pRet->iRetCur, pRet->nRetCol); - } + if( pParse->bReturning ){ + Returning *pRet = pParse->u1.pReturning; + if( pRet->nRetCol ){ + sqlite3VdbeAddOp2(v, OP_OpenEphemeral, pRet->iRetCur, pRet->nRetCol); } - - /* Finally, jump back to the beginning of the executable code. */ - sqlite3VdbeGoto(v, 1); } + + /* Finally, jump back to the beginning of the executable code. */ + sqlite3VdbeGoto(v, 1); } /* Get the VDBE program ready for execution @@ -114254,6 +120870,7 @@ SQLITE_PRIVATE void sqlite3NestedParse(Parse *pParse, const char *zFormat, ...){ char saveBuf[PARSE_TAIL_SZ]; if( pParse->nErr ) return; + if( pParse->eParseMode ) return; assert( pParse->nested<10 ); /* Nesting should only be of limited depth */ va_start(ap, zFormat); zSql = sqlite3VMPrintf(db, zFormat, ap); @@ -114271,8 +120888,6 @@ SQLITE_PRIVATE void sqlite3NestedParse(Parse *pParse, const char *zFormat, ...){ memset(PARSE_TAIL(pParse), 0, PARSE_TAIL_SZ); db->mDbFlags |= DBFLAG_PreferBuiltin; sqlite3RunParser(pParse, zSql); - sqlite3DbFree(db, pParse->zErrMsg); - pParse->zErrMsg = 0; db->mDbFlags = savedDbFlags; sqlite3DbFree(db, zSql); memcpy(PARSE_TAIL(pParse), saveBuf, PARSE_TAIL_SZ); @@ -114402,7 +121017,7 @@ SQLITE_PRIVATE Table *sqlite3LocateTable( /* If zName is the not the name of a table in the schema created using ** CREATE, then check to see if it is the name of an virtual table that ** can be an eponymous virtual table. */ - if( pParse->disableVtab==0 && db->init.busy==0 ){ + if( (pParse->prepFlags & SQLITE_PREPARE_NO_VTAB)==0 && db->init.busy==0 ){ Module *pMod = (Module*)sqlite3HashFind(&db->aModule, zName); if( pMod==0 && sqlite3_strnicmp(zName, "pragma_", 7)==0 ){ pMod = sqlite3PragmaVtabRegister(db, zName); @@ -114415,7 +121030,7 @@ SQLITE_PRIVATE Table *sqlite3LocateTable( #endif if( flags & LOCATE_NOERR ) return 0; pParse->checkSchema = 1; - }else if( IsVirtual(p) && pParse->disableVtab ){ + }else if( IsVirtual(p) && (pParse->prepFlags & SQLITE_PREPARE_NO_VTAB)!=0 ){ p = 0; } @@ -114671,7 +121286,7 @@ SQLITE_PRIVATE void sqlite3ColumnSetExpr( */ SQLITE_PRIVATE Expr *sqlite3ColumnExpr(Table *pTab, Column *pCol){ if( pCol->iDflt==0 ) return 0; - if( NEVER(!IsOrdinaryTable(pTab)) ) return 0; + if( !IsOrdinaryTable(pTab) ) return 0; if( NEVER(pTab->u.tab.pDfltList==0) ) return 0; if( NEVER(pTab->u.tab.pDfltList->nExpr<pCol->iDflt) ) return 0; return pTab->u.tab.pDfltList->a[pCol->iDflt-1].pExpr; @@ -114703,7 +121318,7 @@ SQLITE_PRIVATE void sqlite3ColumnSetColl( } /* -** Return the collating squence name for a column +** Return the collating sequence name for a column */ SQLITE_PRIVATE const char *sqlite3ColumnColl(Column *pCol){ const char *z; @@ -114724,16 +121339,17 @@ SQLITE_PRIVATE void sqlite3DeleteColumnNames(sqlite3 *db, Table *pTable){ int i; Column *pCol; assert( pTable!=0 ); + assert( db!=0 ); if( (pCol = pTable->aCol)!=0 ){ for(i=0; i<pTable->nCol; i++, pCol++){ assert( pCol->zCnName==0 || pCol->hName==sqlite3StrIHash(pCol->zCnName) ); sqlite3DbFree(db, pCol->zCnName); } - sqlite3DbFree(db, pTable->aCol); + sqlite3DbNNFreeNN(db, pTable->aCol); if( IsOrdinaryTable(pTable) ){ sqlite3ExprListDelete(db, pTable->u.tab.pDfltList); } - if( db==0 || db->pnBytesFreed==0 ){ + if( db->pnBytesFreed==0 ){ pTable->aCol = 0; pTable->nCol = 0; if( IsOrdinaryTable(pTable) ){ @@ -114770,7 +121386,8 @@ static void SQLITE_NOINLINE deleteTable(sqlite3 *db, Table *pTable){ ** a Table object that was going to be marked ephemeral. So do not check ** that no lookaside memory is used in this case either. */ int nLookaside = 0; - if( db && !db->mallocFailed && (pTable->tabFlags & TF_Ephemeral)==0 ){ + assert( db!=0 ); + if( !db->mallocFailed && (pTable->tabFlags & TF_Ephemeral)==0 ){ nLookaside = sqlite3LookasideUsed(db, 0); } #endif @@ -114780,7 +121397,7 @@ static void SQLITE_NOINLINE deleteTable(sqlite3 *db, Table *pTable){ pNext = pIndex->pNext; assert( pIndex->pSchema==pTable->pSchema || (IsVirtual(pTable) && pIndex->idxType!=SQLITE_IDXTYPE_APPDEF) ); - if( (db==0 || db->pnBytesFreed==0) && !IsVirtual(pTable) ){ + if( db->pnBytesFreed==0 && !IsVirtual(pTable) ){ char *zName = pIndex->zName; TESTONLY ( Index *pOld = ) sqlite3HashInsert( &pIndex->pSchema->idxHash, zName, 0 @@ -114794,7 +121411,7 @@ static void SQLITE_NOINLINE deleteTable(sqlite3 *db, Table *pTable){ if( IsOrdinaryTable(pTable) ){ sqlite3FkDelete(db, pTable); } -#ifndef SQLITE_OMIT_VIRTUAL_TABLE +#ifndef SQLITE_OMIT_VIRTUALTABLE else if( IsVirtual(pTable) ){ sqlite3VtabClear(db, pTable); } @@ -114817,10 +121434,14 @@ static void SQLITE_NOINLINE deleteTable(sqlite3 *db, Table *pTable){ } SQLITE_PRIVATE void sqlite3DeleteTable(sqlite3 *db, Table *pTable){ /* Do not delete the table until the reference count reaches zero. */ + assert( db!=0 ); if( !pTable ) return; - if( ((!db || db->pnBytesFreed==0) && (--pTable->nTabRef)>0) ) return; + if( db->pnBytesFreed==0 && (--pTable->nTabRef)>0 ) return; deleteTable(db, pTable); } +SQLITE_PRIVATE void sqlite3DeleteTableGeneric(sqlite3 *db, void *pTable){ + sqlite3DeleteTable(db, (Table*)pTable); +} /* @@ -115356,19 +121977,13 @@ SQLITE_PRIVATE void sqlite3ColumnPropertiesFromName(Table *pTab, Column *pCol){ #endif /* -** Name of the special TEMP trigger used to implement RETURNING. The -** name begins with "sqlite_" so that it is guaranteed not to collide -** with any application-generated triggers. -*/ -#define RETURNING_TRIGGER_NAME "sqlite_returning" - -/* ** Clean up the data structures associated with the RETURNING clause. */ -static void sqlite3DeleteReturning(sqlite3 *db, Returning *pRet){ +static void sqlite3DeleteReturning(sqlite3 *db, void *pArg){ + Returning *pRet = (Returning*)pArg; Hash *pHash; pHash = &(db->aDb[1].pSchema->trigHash); - sqlite3HashInsert(pHash, RETURNING_TRIGGER_NAME, 0); + sqlite3HashInsert(pHash, pRet->zName, 0); sqlite3ExprListDelete(db, pRet->pReturnEL); sqlite3DbFree(db, pRet); } @@ -115396,7 +122011,7 @@ SQLITE_PRIVATE void sqlite3AddReturning(Parse *pParse, ExprList *pList){ if( pParse->pNewTrigger ){ sqlite3ErrorMsg(pParse, "cannot use RETURNING in a trigger"); }else{ - assert( pParse->bReturning==0 ); + assert( pParse->bReturning==0 || pParse->ifNotExists ); } pParse->bReturning = 1; pRet = sqlite3DbMallocZero(db, sizeof(*pRet)); @@ -115407,11 +122022,12 @@ SQLITE_PRIVATE void sqlite3AddReturning(Parse *pParse, ExprList *pList){ pParse->u1.pReturning = pRet; pRet->pParse = pParse; pRet->pReturnEL = pList; - sqlite3ParserAddCleanup(pParse, - (void(*)(sqlite3*,void*))sqlite3DeleteReturning, pRet); + sqlite3ParserAddCleanup(pParse, sqlite3DeleteReturning, pRet); testcase( pParse->earlyCleanup ); if( db->mallocFailed ) return; - pRet->retTrig.zName = RETURNING_TRIGGER_NAME; + sqlite3_snprintf(sizeof(pRet->zName), pRet->zName, + "sqlite_returning_%p", pParse); + pRet->retTrig.zName = pRet->zName; pRet->retTrig.op = TK_RETURNING; pRet->retTrig.tr_tm = TRIGGER_AFTER; pRet->retTrig.bReturning = 1; @@ -115422,8 +122038,9 @@ SQLITE_PRIVATE void sqlite3AddReturning(Parse *pParse, ExprList *pList){ pRet->retTStep.pTrig = &pRet->retTrig; pRet->retTStep.pExprList = pList; pHash = &(db->aDb[1].pSchema->trigHash); - assert( sqlite3HashFind(pHash, RETURNING_TRIGGER_NAME)==0 || pParse->nErr ); - if( sqlite3HashInsert(pHash, RETURNING_TRIGGER_NAME, &pRet->retTrig) + assert( sqlite3HashFind(pHash, pRet->zName)==0 + || pParse->nErr || pParse->ifNotExists ); + if( sqlite3HashInsert(pHash, pRet->zName, &pRet->retTrig) ==&pRet->retTrig ){ sqlite3OomFault(db); } @@ -115457,7 +122074,7 @@ SQLITE_PRIVATE void sqlite3AddColumn(Parse *pParse, Token sName, Token sType){ } if( !IN_RENAME_OBJECT ) sqlite3DequoteToken(&sName); - /* Because keywords GENERATE ALWAYS can be converted into indentifiers + /* Because keywords GENERATE ALWAYS can be converted into identifiers ** by the parser, we can sometimes end up with a typename that ends ** with "generated always". Check for this case and omit the surplus ** text. */ @@ -115604,7 +122221,8 @@ SQLITE_PRIVATE char sqlite3AffinityType(const char *zIn, Column *pCol){ assert( zIn!=0 ); while( zIn[0] ){ - h = (h<<8) + sqlite3UpperToLower[(*zIn)&0xff]; + u8 x = *(u8*)zIn; + h = (h<<8) + sqlite3UpperToLower[x]; zIn++; if( h==(('c'<<24)+('h'<<16)+('a'<<8)+'r') ){ /* CHAR */ aff = SQLITE_AFF_TEXT; @@ -115678,7 +122296,7 @@ SQLITE_PRIVATE void sqlite3AddDefaultValue( Parse *pParse, /* Parsing context */ Expr *pExpr, /* The parsed expression of the default value */ const char *zStart, /* Start of the default value text */ - const char *zEnd /* First character past end of defaut value text */ + const char *zEnd /* First character past end of default value text */ ){ Table *p; Column *pCol; @@ -115830,7 +122448,7 @@ SQLITE_PRIVATE void sqlite3AddPrimaryKey( pTab->keyConf = (u8)onError; assert( autoInc==0 || autoInc==1 ); pTab->tabFlags |= autoInc*TF_Autoincrement; - if( pList ) pParse->iPkSortOrder = pList->a[0].sortFlags; + if( pList ) pParse->iPkSortOrder = pList->a[0].fg.sortFlags; (void)sqlite3HasExplicitNulls(pParse, pList); }else if( autoInc ){ #ifndef SQLITE_OMIT_AUTOINCREMENT @@ -115950,6 +122568,14 @@ SQLITE_PRIVATE void sqlite3AddGenerated(Parse *pParse, Expr *pExpr, Token *pType if( pCol->colFlags & COLFLAG_PRIMKEY ){ makeColumnPartOfPrimaryKey(pParse, pCol); /* For the error message */ } + if( ALWAYS(pExpr) && pExpr->op==TK_ID ){ + /* The value of a generated column needs to be a real expression, not + ** just a reference to another column, in order for covering index + ** optimizations to work correctly. So if the value is not an expression, + ** turn it into one by adding a unary "+" operator. */ + pExpr = sqlite3PExpr(pParse, TK_UPLUS, pExpr, 0); + } + if( pExpr && pExpr->op!=TK_RAISE ) pExpr->affExpr = pCol->affinity; sqlite3ColumnSetExpr(pParse, pTab, pCol, pExpr); pExpr = 0; goto generated_done; @@ -116018,7 +122644,7 @@ static int identLength(const char *z){ ** to the specified offset in the buffer and updates *pIdx to refer ** to the first byte after the last byte written before returning. ** -** If the string zSignedIdent consists entirely of alpha-numeric +** If the string zSignedIdent consists entirely of alphanumeric ** characters, does not begin with a digit and is not an SQL keyword, ** then it is copied to the output buffer exactly as it is. Otherwise, ** it is quoted using double-quotes. @@ -116086,7 +122712,8 @@ static char *createTableStmt(sqlite3 *db, Table *p){ /* SQLITE_AFF_TEXT */ " TEXT", /* SQLITE_AFF_NUMERIC */ " NUM", /* SQLITE_AFF_INTEGER */ " INT", - /* SQLITE_AFF_REAL */ " REAL" + /* SQLITE_AFF_REAL */ " REAL", + /* SQLITE_AFF_FLEXNUM */ " NUM", }; int len; const char *zType; @@ -116102,10 +122729,12 @@ static char *createTableStmt(sqlite3 *db, Table *p){ testcase( pCol->affinity==SQLITE_AFF_NUMERIC ); testcase( pCol->affinity==SQLITE_AFF_INTEGER ); testcase( pCol->affinity==SQLITE_AFF_REAL ); + testcase( pCol->affinity==SQLITE_AFF_FLEXNUM ); zType = azType[pCol->affinity - SQLITE_AFF_BLOB]; len = sqlite3Strlen30(zType); assert( pCol->affinity==SQLITE_AFF_BLOB + || pCol->affinity==SQLITE_AFF_FLEXNUM || pCol->affinity==sqlite3AffinityType(zType, 0) ); memcpy(&zStmt[k], zType, len); k += len; @@ -116167,7 +122796,7 @@ static void estimateIndexWidth(Index *pIdx){ for(i=0; i<pIdx->nColumn; i++){ i16 x = pIdx->aiColumn[i]; assert( x<pIdx->pTable->nCol ); - wIndex += x<0 ? 1 : aCol[pIdx->aiColumn[i]].szEst; + wIndex += x<0 ? 1 : aCol[x].szEst; } pIdx->szIdxRow = sqlite3LogEst(wIndex*4); } @@ -116222,7 +122851,8 @@ static int isDupColumn(Index *pIdx, int nKey, Index *pPk, int iCol){ /* Recompute the colNotIdxed field of the Index. ** ** colNotIdxed is a bitmask that has a 0 bit representing each indexed -** columns that are within the first 63 columns of the table. The +** columns that are within the first 63 columns of the table and a 1 for +** all other bits (all columns that are not in the index). The ** high-order bit of colNotIdxed is always 1. All unindexed columns ** of the table have a 1. ** @@ -116250,7 +122880,7 @@ static void recomputeColumnsNotIndexed(Index *pIdx){ } } pIdx->colNotIdxed = ~m; - assert( (pIdx->colNotIdxed>>63)==1 ); + assert( (pIdx->colNotIdxed>>63)==1 ); /* See note-20221022-a */ } /* @@ -116324,7 +122954,7 @@ static void convertToWithoutRowidTable(Parse *pParse, Table *pTab){ if( IN_RENAME_OBJECT ){ sqlite3RenameTokenRemap(pParse, pList->a[0].pExpr, &pTab->iPKey); } - pList->a[0].sortFlags = pParse->iPkSortOrder; + pList->a[0].fg.sortFlags = pParse->iPkSortOrder; assert( pParse->pNewTable==pTab ); pTab->iPKey = -1; sqlite3CreateIndex(pParse, 0, 0, 0, pList, pTab->keyConf, 0, 0, 0, 0, @@ -116519,6 +123149,7 @@ SQLITE_PRIVATE int sqlite3ShadowTableName(sqlite3 *db, const char *zName){ ** not pass them into code generator routines by mistake. */ static int markImmutableExprStep(Walker *pWalker, Expr *pExpr){ + (void)pWalker; ExprSetVVAProperty(pExpr, EP_Immutable); return WRC_Continue; } @@ -116854,6 +123485,17 @@ SQLITE_PRIVATE void sqlite3EndTable( /* Reparse everything to update our internal data structures */ sqlite3VdbeAddParseSchemaOp(v, iDb, sqlite3MPrintf(db, "tbl_name='%q' AND type!='trigger'", p->zName),0); + + /* Test for cycles in generated columns and illegal expressions + ** in CHECK constraints and in DEFAULT clauses. */ + if( p->tabFlags & TF_HasGenerated ){ + sqlite3VdbeAddOp4(v, OP_SqlExec, 1, 0, 0, + sqlite3MPrintf(db, "SELECT*FROM\"%w\".\"%w\"", + db->aDb[iDb].zDbSName, p->zName), P4_DYNAMIC); + } + sqlite3VdbeAddOp4(v, OP_SqlExec, 1, 0, 0, + sqlite3MPrintf(db, "PRAGMA \"%w\".integrity_check(%Q)", + db->aDb[iDb].zDbSName, p->zName), P4_DYNAMIC); } /* Add the table to the in-memory representation of the database. @@ -116991,11 +123633,10 @@ create_view_fail: ** the columns of the view in the pTable structure. Return the number ** of errors. If an error is seen leave an error message in pParse->zErrMsg. */ -SQLITE_PRIVATE int sqlite3ViewGetColumnNames(Parse *pParse, Table *pTable){ +static SQLITE_NOINLINE int viewGetColumnNames(Parse *pParse, Table *pTable){ Table *pSelTab; /* A fake table from which we get the result set */ Select *pSel; /* Copy of the SELECT that implements the view */ int nErr = 0; /* Number of errors encountered */ - int n; /* Temporarily holds the number of cursors assigned */ sqlite3 *db = pParse->db; /* Database connection for malloc errors */ #ifndef SQLITE_OMIT_VIRTUALTABLE int rc; @@ -117017,9 +123658,10 @@ SQLITE_PRIVATE int sqlite3ViewGetColumnNames(Parse *pParse, Table *pTable){ #ifndef SQLITE_OMIT_VIEW /* A positive nCol means the columns names for this view are - ** already known. + ** already known. This routine is not called unless either the + ** table is virtual or nCol is zero. */ - if( pTable->nCol>0 ) return 0; + assert( pTable->nCol<=0 ); /* A negative nCol is a special marker meaning that we are currently ** trying to compute the column names. If we enter this routine with @@ -117053,8 +123695,9 @@ SQLITE_PRIVATE int sqlite3ViewGetColumnNames(Parse *pParse, Table *pTable){ pSel = sqlite3SelectDup(db, pTable->u.view.pSelect, 0); if( pSel ){ u8 eParseMode = pParse->eParseMode; + int nTab = pParse->nTab; + int nSelect = pParse->nSelect; pParse->eParseMode = PARSE_MODE_NORMAL; - n = pParse->nTab; sqlite3SrcListAssignCursors(pParse, pSel->pSrc); pTable->nCol = -1; DisableLookaside; @@ -117066,7 +123709,8 @@ SQLITE_PRIVATE int sqlite3ViewGetColumnNames(Parse *pParse, Table *pTable){ #else pSelTab = sqlite3ResultSetOfSelect(pParse, pSel, SQLITE_AFF_NONE); #endif - pParse->nTab = n; + pParse->nTab = nTab; + pParse->nSelect = nSelect; if( pSelTab==0 ){ pTable->nCol = 0; nErr++; @@ -117083,8 +123727,7 @@ SQLITE_PRIVATE int sqlite3ViewGetColumnNames(Parse *pParse, Table *pTable){ && pTable->nCol==pSel->pEList->nExpr ){ assert( db->mallocFailed==0 ); - sqlite3SelectAddColumnTypeAndCollation(pParse, pTable, pSel, - SQLITE_AFF_NONE); + sqlite3SubqueryColumnTypes(pParse, pTable, pSel, SQLITE_AFF_NONE); } }else{ /* CREATE VIEW name AS... without an argument list. Construct @@ -117113,6 +123756,11 @@ SQLITE_PRIVATE int sqlite3ViewGetColumnNames(Parse *pParse, Table *pTable){ #endif /* SQLITE_OMIT_VIEW */ return nErr; } +SQLITE_PRIVATE int sqlite3ViewGetColumnNames(Parse *pParse, Table *pTable){ + assert( pTable!=0 ); + if( !IsVirtual(pTable) && pTable->nCol>0 ) return 0; + return viewGetColumnNames(pParse, pTable); +} #endif /* !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_VIRTUALTABLE) */ #ifndef SQLITE_OMIT_VIEW @@ -117811,8 +124459,8 @@ SQLITE_PRIVATE int sqlite3HasExplicitNulls(Parse *pParse, ExprList *pList){ if( pList ){ int i; for(i=0; i<pList->nExpr; i++){ - if( pList->a[i].bNulls ){ - u8 sf = pList->a[i].sortFlags; + if( pList->a[i].fg.bNulls ){ + u8 sf = pList->a[i].fg.sortFlags; sqlite3ErrorMsg(pParse, "unsupported use of NULLS %s", (sf==0 || sf==3) ? "FIRST" : "LAST" ); @@ -117897,7 +124545,7 @@ SQLITE_PRIVATE void sqlite3CreateIndex( #ifndef SQLITE_OMIT_TEMPDB /* If the index name was unqualified, check if the table ** is a temp table. If so, set the database to 1. Do not do this - ** if initialising a database schema. + ** if initializing a database schema. */ if( !db->init.busy ){ pTab = sqlite3SrcListLookup(pParse, pTblName); @@ -117978,7 +124626,7 @@ SQLITE_PRIVATE void sqlite3CreateIndex( } if( !IN_RENAME_OBJECT ){ if( !db->init.busy ){ - if( sqlite3FindTable(db, zName, 0)!=0 ){ + if( sqlite3FindTable(db, zName, pDb->zDbSName)!=0 ){ sqlite3ErrorMsg(pParse, "there is already a table named %s", zName); goto exit_create_index; } @@ -118131,6 +124779,7 @@ SQLITE_PRIVATE void sqlite3CreateIndex( j = XN_EXPR; pIndex->aiColumn[i] = XN_EXPR; pIndex->uniqNotNull = 0; + pIndex->bHasExpr = 1; }else{ j = pCExpr->iColumn; assert( j<=0x7fff ); @@ -118142,6 +124791,7 @@ SQLITE_PRIVATE void sqlite3CreateIndex( } if( pTab->aCol[j].colFlags & COLFLAG_VIRTUAL ){ pIndex->bHasVCol = 1; + pIndex->bHasExpr = 1; } } pIndex->aiColumn[i] = (i16)j; @@ -118165,7 +124815,7 @@ SQLITE_PRIVATE void sqlite3CreateIndex( goto exit_create_index; } pIndex->azColl[i] = zColl; - requestedSortOrder = pListItem->sortFlags & sortOrderMask; + requestedSortOrder = pListItem->fg.sortFlags & sortOrderMask; pIndex->aSortOrder[i] = (u8)requestedSortOrder; } @@ -118608,18 +125258,17 @@ SQLITE_PRIVATE IdList *sqlite3IdListAppend(Parse *pParse, IdList *pList, Token * if( pList==0 ){ pList = sqlite3DbMallocZero(db, sizeof(IdList) ); if( pList==0 ) return 0; + }else{ + IdList *pNew; + pNew = sqlite3DbRealloc(db, pList, + sizeof(IdList) + pList->nId*sizeof(pList->a)); + if( pNew==0 ){ + sqlite3IdListDelete(db, pList); + return 0; + } + pList = pNew; } - pList->a = sqlite3ArrayAllocate( - db, - pList->a, - sizeof(pList->a[0]), - &pList->nId, - &i - ); - if( i<0 ){ - sqlite3IdListDelete(db, pList); - return 0; - } + i = pList->nId++; pList->a[i].zName = sqlite3NameFromToken(db, pToken); if( IN_RENAME_OBJECT && pList->a[i].zName ){ sqlite3RenameTokenMap(pParse, (void*)pList->a[i].zName, pToken); @@ -118632,12 +125281,13 @@ SQLITE_PRIVATE IdList *sqlite3IdListAppend(Parse *pParse, IdList *pList, Token * */ SQLITE_PRIVATE void sqlite3IdListDelete(sqlite3 *db, IdList *pList){ int i; + assert( db!=0 ); if( pList==0 ) return; + assert( pList->eU4!=EU4_EXPR ); /* EU4_EXPR mode is not currently used */ for(i=0; i<pList->nId; i++){ sqlite3DbFree(db, pList->a[i].zName); } - sqlite3DbFree(db, pList->a); - sqlite3DbFreeNN(db, pList); + sqlite3DbNNFreeNN(db, pList); } /* @@ -118646,7 +125296,7 @@ SQLITE_PRIVATE void sqlite3IdListDelete(sqlite3 *db, IdList *pList){ */ SQLITE_PRIVATE int sqlite3IdListIndex(IdList *pList, const char *zName){ int i; - if( pList==0 ) return -1; + assert( pList!=0 ); for(i=0; i<pList->nId; i++){ if( sqlite3StrICmp(pList->a[i].zName, zName)==0 ) return i; } @@ -118840,19 +125490,23 @@ SQLITE_PRIVATE void sqlite3SrcListAssignCursors(Parse *pParse, SrcList *pList){ SQLITE_PRIVATE void sqlite3SrcListDelete(sqlite3 *db, SrcList *pList){ int i; SrcItem *pItem; + assert( db!=0 ); if( pList==0 ) return; for(pItem=pList->a, i=0; i<pList->nSrc; i++, pItem++){ - if( pItem->zDatabase ) sqlite3DbFreeNN(db, pItem->zDatabase); - sqlite3DbFree(db, pItem->zName); - if( pItem->zAlias ) sqlite3DbFreeNN(db, pItem->zAlias); + if( pItem->zDatabase ) sqlite3DbNNFreeNN(db, pItem->zDatabase); + if( pItem->zName ) sqlite3DbNNFreeNN(db, pItem->zName); + if( pItem->zAlias ) sqlite3DbNNFreeNN(db, pItem->zAlias); if( pItem->fg.isIndexedBy ) sqlite3DbFree(db, pItem->u1.zIndexedBy); if( pItem->fg.isTabFunc ) sqlite3ExprListDelete(db, pItem->u1.pFuncArg); sqlite3DeleteTable(db, pItem->pTab); if( pItem->pSelect ) sqlite3SelectDelete(db, pItem->pSelect); - if( pItem->pOn ) sqlite3ExprDelete(db, pItem->pOn); - if( pItem->pUsing ) sqlite3IdListDelete(db, pItem->pUsing); + if( pItem->fg.isUsing ){ + sqlite3IdListDelete(db, pItem->u3.pUsing); + }else if( pItem->u3.pOn ){ + sqlite3ExprDelete(db, pItem->u3.pOn); + } } - sqlite3DbFreeNN(db, pList); + sqlite3DbNNFreeNN(db, pList); } /* @@ -118878,14 +125532,13 @@ SQLITE_PRIVATE SrcList *sqlite3SrcListAppendFromTerm( Token *pDatabase, /* Name of the database containing pTable */ Token *pAlias, /* The right-hand side of the AS subexpression */ Select *pSubquery, /* A subquery used in place of a table name */ - Expr *pOn, /* The ON clause of a join */ - IdList *pUsing /* The USING clause of a join */ + OnOrUsing *pOnUsing /* Either the ON clause or the USING clause */ ){ SrcItem *pItem; sqlite3 *db = pParse->db; - if( !p && (pOn || pUsing) ){ + if( !p && pOnUsing!=0 && (pOnUsing->pOn || pOnUsing->pUsing) ){ sqlite3ErrorMsg(pParse, "a JOIN clause is required before %s", - (pOn ? "ON" : "USING") + (pOnUsing->pOn ? "ON" : "USING") ); goto append_from_error; } @@ -118905,15 +125558,27 @@ SQLITE_PRIVATE SrcList *sqlite3SrcListAppendFromTerm( if( pAlias->n ){ pItem->zAlias = sqlite3NameFromToken(db, pAlias); } - pItem->pSelect = pSubquery; - pItem->pOn = pOn; - pItem->pUsing = pUsing; + if( pSubquery ){ + pItem->pSelect = pSubquery; + if( pSubquery->selFlags & SF_NestedFrom ){ + pItem->fg.isNestedFrom = 1; + } + } + assert( pOnUsing==0 || pOnUsing->pOn==0 || pOnUsing->pUsing==0 ); + assert( pItem->fg.isUsing==0 ); + if( pOnUsing==0 ){ + pItem->u3.pOn = 0; + }else if( pOnUsing->pUsing ){ + pItem->fg.isUsing = 1; + pItem->u3.pUsing = pOnUsing->pUsing; + }else{ + pItem->u3.pOn = pOnUsing->pOn; + } return p; append_from_error: assert( p==0 ); - sqlite3ExprDelete(db, pOn); - sqlite3IdListDelete(db, pUsing); + sqlite3ClearOnOrUsing(db, pOnUsing); sqlite3SelectDelete(db, pSubquery); return 0; } @@ -118958,6 +125623,7 @@ SQLITE_PRIVATE SrcList *sqlite3SrcListAppendList(Parse *pParse, SrcList *p1, Src p1 = pNew; memcpy(&p1->a[1], p2->a, p2->nSrc*sizeof(SrcItem)); sqlite3DbFree(pParse->db, p2); + p1->a[0].fg.jointype |= (JT_LTORJ & p1->a[1].fg.jointype); } } return p1; @@ -118994,14 +125660,34 @@ SQLITE_PRIVATE void sqlite3SrcListFuncArgs(Parse *pParse, SrcList *p, ExprList * ** The operator is "natural cross join". The A and B operands are stored ** in p->a[0] and p->a[1], respectively. The parser initially stores the ** operator with A. This routine shifts that operator over to B. +** +** Additional changes: +** +** * All tables to the left of the right-most RIGHT JOIN are tagged with +** JT_LTORJ (mnemonic: Left Table Of Right Join) so that the +** code generator can easily tell that the table is part of +** the left operand of at least one RIGHT JOIN. */ -SQLITE_PRIVATE void sqlite3SrcListShiftJoinType(SrcList *p){ - if( p ){ - int i; - for(i=p->nSrc-1; i>0; i--){ - p->a[i].fg.jointype = p->a[i-1].fg.jointype; - } +SQLITE_PRIVATE void sqlite3SrcListShiftJoinType(Parse *pParse, SrcList *p){ + (void)pParse; + if( p && p->nSrc>1 ){ + int i = p->nSrc-1; + u8 allFlags = 0; + do{ + allFlags |= p->a[i].fg.jointype = p->a[i-1].fg.jointype; + }while( (--i)>0 ); p->a[0].fg.jointype = 0; + + /* All terms to the left of a RIGHT JOIN should be tagged with the + ** JT_LTORJ flags */ + if( allFlags & JT_RIGHT ){ + for(i=p->nSrc-1; ALWAYS(i>0) && (p->a[i].fg.jointype&JT_RIGHT)==0; i--){} + i--; + assert( i>=0 ); + do{ + p->a[i].fg.jointype |= JT_LTORJ; + }while( (--i)>=0 ); + } } } @@ -119401,7 +126087,7 @@ SQLITE_PRIVATE void sqlite3Reindex(Parse *pParse, Token *pName1, Token *pName2){ if( iDb<0 ) return; z = sqlite3NameFromToken(db, pObjName); if( z==0 ) return; - zDb = db->aDb[iDb].zDbSName; + zDb = pName2->n ? db->aDb[iDb].zDbSName : 0; pTab = sqlite3FindTable(db, z, zDb); if( pTab ){ reindexTable(pParse, pTab, 0); @@ -119411,6 +126097,7 @@ SQLITE_PRIVATE void sqlite3Reindex(Parse *pParse, Token *pName1, Token *pName2){ pIndex = sqlite3FindIndex(db, z, zDb); sqlite3DbFree(db, z); if( pIndex ){ + iDb = sqlite3SchemaToIndex(db, pIndex->pTable->pSchema); sqlite3BeginWriteOperation(pParse, 0, iDb); sqlite3RefillIndex(pParse, pIndex, -1); return; @@ -119516,7 +126203,7 @@ SQLITE_PRIVATE void sqlite3CteDelete(sqlite3 *db, Cte *pCte){ /* ** This routine is invoked once per CTE by the parser while parsing a -** WITH clause. The CTE described by teh third argument is added to +** WITH clause. The CTE described by the third argument is added to ** the WITH clause of the second argument. If the second argument is ** NULL, then a new WITH argument is created. */ @@ -119576,6 +126263,9 @@ SQLITE_PRIVATE void sqlite3WithDelete(sqlite3 *db, With *pWith){ sqlite3DbFree(db, pWith); } } +SQLITE_PRIVATE void sqlite3WithDeleteGeneric(sqlite3 *db, void *pWith){ + sqlite3WithDelete(db, (With*)pWith); +} #endif /* !defined(SQLITE_OMIT_CTE) */ /************** End of build.c ***********************************************/ @@ -119767,6 +126457,7 @@ SQLITE_PRIVATE void sqlite3SetTextEncoding(sqlite3 *db, u8 enc){ ** strings is BINARY. */ db->pDfltColl = sqlite3FindCollSeq(db, enc, sqlite3StrBINARY, 0); + sqlite3ExpirePreparedStatements(db, 1); } /* @@ -120072,19 +126763,21 @@ SQLITE_PRIVATE void sqlite3SchemaClear(void *p){ Hash temp2; HashElem *pElem; Schema *pSchema = (Schema *)p; + sqlite3 xdb; + memset(&xdb, 0, sizeof(xdb)); temp1 = pSchema->tblHash; temp2 = pSchema->trigHash; sqlite3HashInit(&pSchema->trigHash); sqlite3HashClear(&pSchema->idxHash); for(pElem=sqliteHashFirst(&temp2); pElem; pElem=sqliteHashNext(pElem)){ - sqlite3DeleteTrigger(0, (Trigger*)sqliteHashData(pElem)); + sqlite3DeleteTrigger(&xdb, (Trigger*)sqliteHashData(pElem)); } sqlite3HashClear(&temp2); sqlite3HashInit(&pSchema->tblHash); for(pElem=sqliteHashFirst(&temp1); pElem; pElem=sqliteHashNext(pElem)){ Table *pTab = sqliteHashData(pElem); - sqlite3DeleteTable(0, pTab); + sqlite3DeleteTable(&xdb, pTab); } sqlite3HashClear(&temp1); sqlite3HashClear(&pSchema->fkeyHash); @@ -120155,8 +126848,9 @@ SQLITE_PRIVATE Table *sqlite3SrcListLookup(Parse *pParse, SrcList *pSrc){ Table *pTab; assert( pItem && pSrc->nSrc>=1 ); pTab = sqlite3LocateTableItem(pParse, 0, pItem); - sqlite3DeleteTable(pParse->db, pItem->pTab); + if( pItem->pTab ) sqlite3DeleteTable(pParse->db, pItem->pTab); pItem->pTab = pTab; + pItem->fg.notCte = 1; if( pTab ){ pTab->nTabRef++; if( pItem->fg.isIndexedBy && sqlite3IndexedByLookup(pParse, pItem) ){ @@ -120183,18 +126877,42 @@ SQLITE_PRIVATE void sqlite3CodeChangeCount(Vdbe *v, int regCounter, const char * ** 1) It is a virtual table and no implementation of the xUpdate method ** has been provided ** -** 2) It is a system table (i.e. sqlite_schema), this call is not +** 2) A trigger is currently being coded and the table is a virtual table +** that is SQLITE_VTAB_DIRECTONLY or if PRAGMA trusted_schema=OFF and +** the table is not SQLITE_VTAB_INNOCUOUS. +** +** 3) It is a system table (i.e. sqlite_schema), this call is not ** part of a nested parse and writable_schema pragma has not ** been specified ** -** 3) The table is a shadow table, the database connection is in +** 4) The table is a shadow table, the database connection is in ** defensive mode, and the current sqlite3_prepare() ** is for a top-level SQL statement. */ +static int vtabIsReadOnly(Parse *pParse, Table *pTab){ + if( sqlite3GetVTable(pParse->db, pTab)->pMod->pModule->xUpdate==0 ){ + return 1; + } + + /* Within triggers: + ** * Do not allow DELETE, INSERT, or UPDATE of SQLITE_VTAB_DIRECTONLY + ** virtual tables + ** * Only allow DELETE, INSERT, or UPDATE of non-SQLITE_VTAB_INNOCUOUS + ** virtual tables if PRAGMA trusted_schema=ON. + */ + if( pParse->pToplevel!=0 + && pTab->u.vtab.p->eVtabRisk > + ((pParse->db->flags & SQLITE_TrustedSchema)!=0) + ){ + sqlite3ErrorMsg(pParse, "unsafe use of virtual table \"%s\"", + pTab->zName); + } + return 0; +} static int tabIsReadOnly(Parse *pParse, Table *pTab){ sqlite3 *db; if( IsVirtual(pTab) ){ - return sqlite3GetVTable(pParse->db, pTab)->pMod->pModule->xUpdate==0; + return vtabIsReadOnly(pParse, pTab); } if( (pTab->tabFlags & (TF_Readonly|TF_Shadow))==0 ) return 0; db = pParse->db; @@ -120206,17 +126924,21 @@ static int tabIsReadOnly(Parse *pParse, Table *pTab){ } /* -** Check to make sure the given table is writable. If it is not -** writable, generate an error message and return 1. If it is -** writable return 0; +** Check to make sure the given table is writable. +** +** If pTab is not writable -> generate an error message and return 1. +** If pTab is writable but other errors have occurred -> return 1. +** If pTab is writable and no prior errors -> return 0; */ -SQLITE_PRIVATE int sqlite3IsReadOnly(Parse *pParse, Table *pTab, int viewOk){ +SQLITE_PRIVATE int sqlite3IsReadOnly(Parse *pParse, Table *pTab, Trigger *pTrigger){ if( tabIsReadOnly(pParse, pTab) ){ sqlite3ErrorMsg(pParse, "table %s may not be modified", pTab->zName); return 1; } #ifndef SQLITE_OMIT_VIEW - if( !viewOk && IsView(pTab) ){ + if( IsView(pTab) + && (pTrigger==0 || (pTrigger->bReturning && pTrigger->pNext==0)) + ){ sqlite3ErrorMsg(pParse,"cannot modify %s because it is a view",pTab->zName); return 1; } @@ -120250,8 +126972,8 @@ SQLITE_PRIVATE void sqlite3MaterializeView( assert( pFrom->nSrc==1 ); pFrom->a[0].zName = sqlite3DbStrDup(db, pView->zName); pFrom->a[0].zDatabase = sqlite3DbStrDup(db, db->aDb[iDb].zDbSName); - assert( pFrom->a[0].pOn==0 ); - assert( pFrom->a[0].pUsing==0 ); + assert( pFrom->a[0].fg.isUsing==0 ); + assert( pFrom->a[0].u3.pOn==0 ); } pSel = sqlite3SelectNew(pParse, 0, pFrom, pWhere, 0, 0, pOrderBy, SF_IncludeHidden, pLimit); @@ -120281,7 +127003,7 @@ SQLITE_PRIVATE Expr *sqlite3LimitWhere( sqlite3 *db = pParse->db; Expr *pLhs = NULL; /* LHS of IN(SELECT...) operator */ Expr *pInClause = NULL; /* WHERE rowid IN ( select ) */ - ExprList *pEList = NULL; /* Expression list contaning only pSelectRowid */ + ExprList *pEList = NULL; /* Expression list containing only pSelectRowid*/ SrcList *pSelectSrc = NULL; /* SELECT rowid FROM x ... (dup of pSrc) */ Select *pSelect = NULL; /* Complete SELECT tree */ Table *pTab; @@ -120319,14 +127041,20 @@ SQLITE_PRIVATE Expr *sqlite3LimitWhere( ); }else{ Index *pPk = sqlite3PrimaryKeyIndex(pTab); + assert( pPk!=0 ); + assert( pPk->nKeyCol>=1 ); if( pPk->nKeyCol==1 ){ - const char *zName = pTab->aCol[pPk->aiColumn[0]].zCnName; + const char *zName; + assert( pPk->aiColumn[0]>=0 && pPk->aiColumn[0]<pTab->nCol ); + zName = pTab->aCol[pPk->aiColumn[0]].zCnName; pLhs = sqlite3Expr(db, TK_ID, zName); pEList = sqlite3ExprListAppend(pParse, 0, sqlite3Expr(db, TK_ID, zName)); }else{ int i; for(i=0; i<pPk->nKeyCol; i++){ - Expr *p = sqlite3Expr(db, TK_ID, pTab->aCol[pPk->aiColumn[i]].zCnName); + Expr *p; + assert( pPk->aiColumn[i]>=0 && pPk->aiColumn[i]<pTab->nCol ); + p = sqlite3Expr(db, TK_ID, pTab->aCol[pPk->aiColumn[i]].zCnName); pEList = sqlite3ExprListAppend(pParse, pEList, p); } pLhs = sqlite3PExpr(pParse, TK_VECTOR, 0, 0); @@ -120355,7 +127083,7 @@ SQLITE_PRIVATE Expr *sqlite3LimitWhere( pOrderBy,0,pLimit ); - /* now generate the new WHERE rowid IN clause for the DELETE/UDPATE */ + /* now generate the new WHERE rowid IN clause for the DELETE/UPDATE */ pInClause = sqlite3PExpr(pParse, TK_IN, pLhs, 0); sqlite3PExprAddSelect(pParse, pInClause, pSelect); return pInClause; @@ -120422,7 +127150,6 @@ SQLITE_PRIVATE void sqlite3DeleteFrom( assert( db->mallocFailed==0 ); assert( pTabList->nSrc==1 ); - /* Locate the table which we want to delete. This table has to be ** put in an SrcList structure because some of the subroutines we ** will be calling are designed to work with multiple tables and expect @@ -120447,6 +127174,14 @@ SQLITE_PRIVATE void sqlite3DeleteFrom( # define isView 0 #endif +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x10000 ){ + sqlite3TreeViewLine(0, "In sqlite3Delete() at %s:%d", __FILE__, __LINE__); + sqlite3TreeViewDelete(pParse->pWith, pTabList, pWhere, + pOrderBy, pLimit, pTrigger); + } +#endif + #ifdef SQLITE_ENABLE_UPDATE_DELETE_LIMIT if( !isView ){ pWhere = sqlite3LimitWhere( @@ -120463,7 +127198,7 @@ SQLITE_PRIVATE void sqlite3DeleteFrom( goto delete_from_cleanup; } - if( sqlite3IsReadOnly(pParse, pTab, (pTrigger?1:0)) ){ + if( sqlite3IsReadOnly(pParse, pTab, pTrigger) ){ goto delete_from_cleanup; } iDb = sqlite3SchemaToIndex(db, pTab->pSchema); @@ -120562,21 +127297,22 @@ SQLITE_PRIVATE void sqlite3DeleteFrom( } for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){ assert( pIdx->pSchema==pTab->pSchema ); - sqlite3VdbeAddOp2(v, OP_Clear, pIdx->tnum, iDb); if( IsPrimaryKeyIndex(pIdx) && !HasRowid(pTab) ){ - sqlite3VdbeChangeP3(v, -1, memCnt ? memCnt : -1); + sqlite3VdbeAddOp3(v, OP_Clear, pIdx->tnum, iDb, memCnt ? memCnt : -1); + }else{ + sqlite3VdbeAddOp2(v, OP_Clear, pIdx->tnum, iDb); } } }else #endif /* SQLITE_OMIT_TRUNCATE_OPTIMIZATION */ { u16 wcf = WHERE_ONEPASS_DESIRED|WHERE_DUPLICATES_OK; - if( sNC.ncFlags & NC_VarSelect ) bComplex = 1; + if( sNC.ncFlags & NC_Subquery ) bComplex = 1; wcf |= (bComplex ? 0 : WHERE_ONEPASS_MULTIROW); if( HasRowid(pTab) ){ /* For a rowid table, initialize the RowSet to an empty set */ pPk = 0; - nPk = 1; + assert( nPk==1 ); iRowSet = ++pParse->nMem; sqlite3VdbeAddOp2(v, OP_Null, 0, iRowSet); }else{ @@ -120604,7 +127340,8 @@ SQLITE_PRIVATE void sqlite3DeleteFrom( if( pWInfo==0 ) goto delete_from_cleanup; eOnePass = sqlite3WhereOkOnePass(pWInfo, aiCurOnePass); assert( IsVirtual(pTab)==0 || eOnePass!=ONEPASS_MULTI ); - assert( IsVirtual(pTab) || bComplex || eOnePass!=ONEPASS_OFF ); + assert( IsVirtual(pTab) || bComplex || eOnePass!=ONEPASS_OFF + || OptimizationDisabled(db, SQLITE_OnePass) ); if( eOnePass!=ONEPASS_SINGLE ) sqlite3MultiWrite(pParse); if( sqlite3WhereUsesDeferredSeek(pWInfo) ){ sqlite3VdbeAddOp1(v, OP_FinishSeek, iTabCur); @@ -120764,7 +127501,7 @@ delete_from_cleanup: sqlite3ExprListDelete(db, pOrderBy); sqlite3ExprDelete(db, pLimit); #endif - sqlite3DbFree(db, aToOpen); + if( aToOpen ) sqlite3DbNNFreeNN(db, aToOpen); return; } /* Make sure "isView" and other macros defined above are undefined. Otherwise @@ -120941,9 +127678,11 @@ SQLITE_PRIVATE void sqlite3GenerateRowDelete( sqlite3FkActions(pParse, pTab, 0, iOld, 0, 0); /* Invoke AFTER DELETE trigger programs. */ - sqlite3CodeRowTrigger(pParse, pTrigger, - TK_DELETE, 0, TRIGGER_AFTER, pTab, iOld, onconf, iLabel - ); + if( pTrigger ){ + sqlite3CodeRowTrigger(pParse, pTrigger, + TK_DELETE, 0, TRIGGER_AFTER, pTab, iOld, onconf, iLabel + ); + } /* Jump here if the row had already been deleted before any BEFORE ** trigger programs were invoked. Or if a trigger program throws a @@ -121257,6 +127996,42 @@ static void lengthFunc( } /* +** Implementation of the octet_length() function +*/ +static void bytelengthFunc( + sqlite3_context *context, + int argc, + sqlite3_value **argv +){ + assert( argc==1 ); + UNUSED_PARAMETER(argc); + switch( sqlite3_value_type(argv[0]) ){ + case SQLITE_BLOB: { + sqlite3_result_int(context, sqlite3_value_bytes(argv[0])); + break; + } + case SQLITE_INTEGER: + case SQLITE_FLOAT: { + i64 m = sqlite3_context_db_handle(context)->enc<=SQLITE_UTF8 ? 1 : 2; + sqlite3_result_int64(context, sqlite3_value_bytes(argv[0])*m); + break; + } + case SQLITE_TEXT: { + if( sqlite3_value_encoding(argv[0])<=SQLITE_UTF8 ){ + sqlite3_result_int(context, sqlite3_value_bytes(argv[0])); + }else{ + sqlite3_result_int(context, sqlite3_value_bytes16(argv[0])); + } + break; + } + default: { + sqlite3_result_null(context); + break; + } + } +} + +/* ** Implementation of the abs() function. ** ** IMP: R-23979-26855 The abs(X) function returns the absolute value of @@ -121532,7 +128307,7 @@ static void roundFunc(sqlite3_context *context, int argc, sqlite3_value **argv){ }else if( n==0 ){ r = (double)((sqlite_int64)(r+(r<0?-0.5:+0.5))); }else{ - zBuf = sqlite3_mprintf("%.*f",n,r); + zBuf = sqlite3_mprintf("%!.*f",n,r); if( zBuf==0 ){ sqlite3_result_error_nomem(context); return; @@ -121732,7 +128507,7 @@ struct compareInfo { /* ** For LIKE and GLOB matching on EBCDIC machines, assume that every -** character is exactly one byte in size. Also, provde the Utf8Read() +** character is exactly one byte in size. Also, provide the Utf8Read() ** macro for fast reading of the next character in the common case where ** the next character is ASCII. */ @@ -121847,7 +128622,7 @@ static int patternCompare( ** c but in the other case and search the input string for either ** c or cx. */ - if( c<=0x80 ){ + if( c<0x80 ){ char zStop[3]; int bMatch; if( noCase ){ @@ -121930,7 +128705,13 @@ static int patternCompare( ** non-zero if there is no match. */ SQLITE_API int sqlite3_strglob(const char *zGlobPattern, const char *zString){ - return patternCompare((u8*)zGlobPattern, (u8*)zString, &globInfo, '['); + if( zString==0 ){ + return zGlobPattern!=0; + }else if( zGlobPattern==0 ){ + return 1; + }else { + return patternCompare((u8*)zGlobPattern, (u8*)zString, &globInfo, '['); + } } /* @@ -121938,7 +128719,13 @@ SQLITE_API int sqlite3_strglob(const char *zGlobPattern, const char *zString){ ** a miss - like strcmp(). */ SQLITE_API int sqlite3_strlike(const char *zPattern, const char *zStr, unsigned int esc){ - return patternCompare((u8*)zPattern, (u8*)zStr, &likeInfoNorm, esc); + if( zStr==0 ){ + return zPattern!=0; + }else if( zPattern==0 ){ + return 1; + }else{ + return patternCompare((u8*)zPattern, (u8*)zStr, &likeInfoNorm, esc); + } } /* @@ -121953,7 +128740,7 @@ SQLITE_API int sqlite3_like_count = 0; /* ** Implementation of the like() SQL function. This function implements -** the build-in LIKE operator. The first argument to the function is the +** the built-in LIKE operator. The first argument to the function is the ** pattern and the second argument is the string. So, the SQL statements: ** ** A LIKE B @@ -122177,7 +128964,7 @@ SQLITE_PRIVATE void sqlite3QuoteValue(StrAccum *pStr, sqlite3_value *pValue){ } case SQLITE_BLOB: { char const *zBlob = sqlite3_value_blob(pValue); - int nBlob = sqlite3_value_bytes(pValue); + i64 nBlob = sqlite3_value_bytes(pValue); assert( zBlob==sqlite3_value_blob(pValue) ); /* No encoding change */ sqlite3StrAccumEnlarge(pStr, nBlob*2 + 4); if( pStr->accError==0 ){ @@ -122286,6 +129073,7 @@ static void charFunc( *zOut++ = 0x80 + (u8)(c & 0x3F); } \ } + *zOut = 0; sqlite3_result_text64(context, (char*)z, zOut-z, sqlite3_free, SQLITE_UTF8); } @@ -122314,10 +129102,101 @@ static void hexFunc( *(z++) = hexdigits[c&0xf]; } *z = 0; - sqlite3_result_text(context, zHex, n*2, sqlite3_free); + sqlite3_result_text64(context, zHex, (u64)(z-zHex), + sqlite3_free, SQLITE_UTF8); + } +} + +/* +** Buffer zStr contains nStr bytes of utf-8 encoded text. Return 1 if zStr +** contains character ch, or 0 if it does not. +*/ +static int strContainsChar(const u8 *zStr, int nStr, u32 ch){ + const u8 *zEnd = &zStr[nStr]; + const u8 *z = zStr; + while( z<zEnd ){ + u32 tst = Utf8Read(z); + if( tst==ch ) return 1; + } + return 0; +} + +/* +** The unhex() function. This function may be invoked with either one or +** two arguments. In both cases the first argument is interpreted as text +** a text value containing a set of pairs of hexadecimal digits which are +** decoded and returned as a blob. +** +** If there is only a single argument, then it must consist only of an +** even number of hexadecimal digits. Otherwise, return NULL. +** +** Or, if there is a second argument, then any character that appears in +** the second argument is also allowed to appear between pairs of hexadecimal +** digits in the first argument. If any other character appears in the +** first argument, or if one of the allowed characters appears between +** two hexadecimal digits that make up a single byte, NULL is returned. +** +** The following expressions are all true: +** +** unhex('ABCD') IS x'ABCD' +** unhex('AB CD') IS NULL +** unhex('AB CD', ' ') IS x'ABCD' +** unhex('A BCD', ' ') IS NULL +*/ +static void unhexFunc( + sqlite3_context *pCtx, + int argc, + sqlite3_value **argv +){ + const u8 *zPass = (const u8*)""; + int nPass = 0; + const u8 *zHex = sqlite3_value_text(argv[0]); + int nHex = sqlite3_value_bytes(argv[0]); +#ifdef SQLITE_DEBUG + const u8 *zEnd = zHex ? &zHex[nHex] : 0; +#endif + u8 *pBlob = 0; + u8 *p = 0; + + assert( argc==1 || argc==2 ); + if( argc==2 ){ + zPass = sqlite3_value_text(argv[1]); + nPass = sqlite3_value_bytes(argv[1]); + } + if( !zHex || !zPass ) return; + + p = pBlob = contextMalloc(pCtx, (nHex/2)+1); + if( pBlob ){ + u8 c; /* Most significant digit of next byte */ + u8 d; /* Least significant digit of next byte */ + + while( (c = *zHex)!=0x00 ){ + while( !sqlite3Isxdigit(c) ){ + u32 ch = Utf8Read(zHex); + assert( zHex<=zEnd ); + if( !strContainsChar(zPass, nPass, ch) ) goto unhex_null; + c = *zHex; + if( c==0x00 ) goto unhex_done; + } + zHex++; + assert( *zEnd==0x00 ); + assert( zHex<=zEnd ); + d = *(zHex++); + if( !sqlite3Isxdigit(d) ) goto unhex_null; + *(p++) = (sqlite3HexToInt(c)<<4) | sqlite3HexToInt(d); + } } + + unhex_done: + sqlite3_result_blob(pCtx, pBlob, (p - pBlob), sqlite3_free); + return; + + unhex_null: + sqlite3_free(pBlob); + return; } + /* ** The zeroblob(N) function returns a zero-filled blob of size N bytes. */ @@ -122518,12 +129397,87 @@ static void trimFunc( sqlite3_result_text(context, (char*)zIn, nIn, SQLITE_TRANSIENT); } +/* The core implementation of the CONCAT(...) and CONCAT_WS(SEP,...) +** functions. +** +** Return a string value that is the concatenation of all non-null +** entries in argv[]. Use zSep as the separator. +*/ +static void concatFuncCore( + sqlite3_context *context, + int argc, + sqlite3_value **argv, + int nSep, + const char *zSep +){ + i64 j, k, n = 0; + int i; + char *z; + for(i=0; i<argc; i++){ + n += sqlite3_value_bytes(argv[i]); + } + n += (argc-1)*nSep; + z = sqlite3_malloc64(n+1); + if( z==0 ){ + sqlite3_result_error_nomem(context); + return; + } + j = 0; + for(i=0; i<argc; i++){ + k = sqlite3_value_bytes(argv[i]); + if( k>0 ){ + const char *v = (const char*)sqlite3_value_text(argv[i]); + if( v!=0 ){ + if( j>0 && nSep>0 ){ + memcpy(&z[j], zSep, nSep); + j += nSep; + } + memcpy(&z[j], v, k); + j += k; + } + } + } + z[j] = 0; + assert( j<=n ); + sqlite3_result_text64(context, z, j, sqlite3_free, SQLITE_UTF8); +} + +/* +** The CONCAT(...) function. Generate a string result that is the +** concatentation of all non-null arguments. +*/ +static void concatFunc( + sqlite3_context *context, + int argc, + sqlite3_value **argv +){ + concatFuncCore(context, argc, argv, 0, ""); +} + +/* +** The CONCAT_WS(separator, ...) function. +** +** Generate a string that is the concatenation of 2nd through the Nth +** argument. Use the first argument (which must be non-NULL) as the +** separator. +*/ +static void concatwsFunc( + sqlite3_context *context, + int argc, + sqlite3_value **argv +){ + int nSep = sqlite3_value_bytes(argv[0]); + const char *zSep = (const char*)sqlite3_value_text(argv[0]); + if( zSep==0 ) return; + concatFuncCore(context, argc-1, argv+1, nSep, zSep); +} + #ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION /* ** The "unknown" function is automatically substituted in place of ** any unrecognized function name when doing an EXPLAIN or EXPLAIN QUERY PLAN -** when the SQLITE_ENABLE_UNKNOWN_FUNCTION compile-time option is used. +** when the SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION compile-time option is used. ** When the "sqlite3" command-line shell is built using this functionality, ** that allows an EXPLAIN or EXPLAIN QUERY PLAN for complex queries ** involving application-defined functions to be examined in a generic @@ -122535,6 +129489,9 @@ static void unknownFunc( sqlite3_value **argv ){ /* no-op */ + (void)context; + (void)argc; + (void)argv; } #endif /*SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION*/ @@ -122636,14 +129593,69 @@ static void loadExt(sqlite3_context *context, int argc, sqlite3_value **argv){ */ typedef struct SumCtx SumCtx; struct SumCtx { - double rSum; /* Floating point sum */ - i64 iSum; /* Integer sum */ + double rSum; /* Running sum as as a double */ + double rErr; /* Error term for Kahan-Babushka-Neumaier summation */ + i64 iSum; /* Running sum as a signed integer */ i64 cnt; /* Number of elements summed */ - u8 overflow; /* True if integer overflow seen */ - u8 approx; /* True if non-integer value was input to the sum */ + u8 approx; /* True if any non-integer value was input to the sum */ + u8 ovrfl; /* Integer overflow seen */ }; /* +** Do one step of the Kahan-Babushka-Neumaier summation. +** +** https://en.wikipedia.org/wiki/Kahan_summation_algorithm +** +** Variables are marked "volatile" to defeat c89 x86 floating point +** optimizations can mess up this algorithm. +*/ +static void kahanBabuskaNeumaierStep( + volatile SumCtx *pSum, + volatile double r +){ + volatile double s = pSum->rSum; + volatile double t = s + r; + if( fabs(s) > fabs(r) ){ + pSum->rErr += (s - t) + r; + }else{ + pSum->rErr += (r - t) + s; + } + pSum->rSum = t; +} + +/* +** Add a (possibly large) integer to the running sum. +*/ +static void kahanBabuskaNeumaierStepInt64(volatile SumCtx *pSum, i64 iVal){ + if( iVal<=-4503599627370496LL || iVal>=+4503599627370496LL ){ + i64 iBig, iSm; + iSm = iVal % 16384; + iBig = iVal - iSm; + kahanBabuskaNeumaierStep(pSum, iBig); + kahanBabuskaNeumaierStep(pSum, iSm); + }else{ + kahanBabuskaNeumaierStep(pSum, (double)iVal); + } +} + +/* +** Initialize the Kahan-Babaska-Neumaier sum from a 64-bit integer +*/ +static void kahanBabuskaNeumaierInit( + volatile SumCtx *p, + i64 iVal +){ + if( iVal<=-4503599627370496LL || iVal>=+4503599627370496LL ){ + i64 iSm = iVal % 16384; + p->rSum = (double)(iVal - iSm); + p->rErr = (double)iSm; + }else{ + p->rSum = (double)iVal; + p->rErr = 0.0; + } +} + +/* ** Routines used to compute the sum, average, and total. ** ** The SUM() function follows the (broken) SQL standard which means @@ -122662,15 +129674,29 @@ static void sumStep(sqlite3_context *context, int argc, sqlite3_value **argv){ type = sqlite3_value_numeric_type(argv[0]); if( p && type!=SQLITE_NULL ){ p->cnt++; - if( type==SQLITE_INTEGER ){ - i64 v = sqlite3_value_int64(argv[0]); - p->rSum += v; - if( (p->approx|p->overflow)==0 && sqlite3AddInt64(&p->iSum, v) ){ - p->approx = p->overflow = 1; + if( p->approx==0 ){ + if( type!=SQLITE_INTEGER ){ + kahanBabuskaNeumaierInit(p, p->iSum); + p->approx = 1; + kahanBabuskaNeumaierStep(p, sqlite3_value_double(argv[0])); + }else{ + i64 x = p->iSum; + if( sqlite3AddInt64(&x, sqlite3_value_int64(argv[0]))==0 ){ + p->iSum = x; + }else{ + p->ovrfl = 1; + kahanBabuskaNeumaierInit(p, p->iSum); + p->approx = 1; + kahanBabuskaNeumaierStepInt64(p, sqlite3_value_int64(argv[0])); + } } }else{ - p->rSum += sqlite3_value_double(argv[0]); - p->approx = 1; + if( type==SQLITE_INTEGER ){ + kahanBabuskaNeumaierStepInt64(p, sqlite3_value_int64(argv[0])); + }else{ + p->ovrfl = 0; + kahanBabuskaNeumaierStep(p, sqlite3_value_double(argv[0])); + } } } } @@ -122687,13 +129713,18 @@ static void sumInverse(sqlite3_context *context, int argc, sqlite3_value**argv){ if( ALWAYS(p) && type!=SQLITE_NULL ){ assert( p->cnt>0 ); p->cnt--; - assert( type==SQLITE_INTEGER || p->approx ); - if( type==SQLITE_INTEGER && p->approx==0 ){ - i64 v = sqlite3_value_int64(argv[0]); - p->rSum -= v; - p->iSum -= v; + if( !p->approx ){ + p->iSum -= sqlite3_value_int64(argv[0]); + }else if( type==SQLITE_INTEGER ){ + i64 iVal = sqlite3_value_int64(argv[0]); + if( iVal!=SMALLEST_INT64 ){ + kahanBabuskaNeumaierStepInt64(p, -iVal); + }else{ + kahanBabuskaNeumaierStepInt64(p, LARGEST_INT64); + kahanBabuskaNeumaierStepInt64(p, 1); + } }else{ - p->rSum -= sqlite3_value_double(argv[0]); + kahanBabuskaNeumaierStep(p, -sqlite3_value_double(argv[0])); } } } @@ -122704,10 +129735,14 @@ static void sumFinalize(sqlite3_context *context){ SumCtx *p; p = sqlite3_aggregate_context(context, 0); if( p && p->cnt>0 ){ - if( p->overflow ){ - sqlite3_result_error(context,"integer overflow",-1); - }else if( p->approx ){ - sqlite3_result_double(context, p->rSum); + if( p->approx ){ + if( p->ovrfl ){ + sqlite3_result_error(context,"integer overflow",-1); + }else if( !sqlite3IsNaN(p->rErr) ){ + sqlite3_result_double(context, p->rSum+p->rErr); + }else{ + sqlite3_result_double(context, p->rSum); + } }else{ sqlite3_result_int64(context, p->iSum); } @@ -122717,14 +129752,29 @@ static void avgFinalize(sqlite3_context *context){ SumCtx *p; p = sqlite3_aggregate_context(context, 0); if( p && p->cnt>0 ){ - sqlite3_result_double(context, p->rSum/(double)p->cnt); + double r; + if( p->approx ){ + r = p->rSum; + if( !sqlite3IsNaN(p->rErr) ) r += p->rErr; + }else{ + r = (double)(p->iSum); + } + sqlite3_result_double(context, r/(double)p->cnt); } } static void totalFinalize(sqlite3_context *context){ SumCtx *p; + double r = 0.0; p = sqlite3_aggregate_context(context, 0); - /* (double)0 In case of SQLITE_OMIT_FLOATING_POINT... */ - sqlite3_result_double(context, p ? p->rSum : (double)0); + if( p ){ + if( p->approx ){ + r = p->rSum; + if( !sqlite3IsNaN(p->rErr) ) r += p->rErr; + }else{ + r = (double)(p->iSum); + } + } + sqlite3_result_double(context, r); } /* @@ -122843,6 +129893,7 @@ static void minMaxFinalize(sqlite3_context *context){ /* ** group_concat(EXPR, ?SEPARATOR?) +** string_agg(EXPR, SEPARATOR) ** ** The SEPARATOR goes before the EXPR string. This is tragic. The ** groupConcatInverse() implementation would have been easier if the @@ -122946,7 +129997,7 @@ static void groupConcatInverse( if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return; pGCC = (GroupConcatCtx*)sqlite3_aggregate_context(context, sizeof(*pGCC)); /* pGCC is always non-NULL since groupConcatStep() will have always - ** run frist to initialize it */ + ** run first to initialize it */ if( ALWAYS(pGCC) ){ int nVS; /* Must call sqlite3_value_text() to convert the argument into text prior @@ -123030,8 +130081,10 @@ SQLITE_PRIVATE void sqlite3RegisterPerConnectionBuiltinFunctions(sqlite3 *db){ ** sensitive. */ SQLITE_PRIVATE void sqlite3RegisterLikeFunctions(sqlite3 *db, int caseSensitive){ + FuncDef *pDef; struct compareInfo *pInfo; int flags; + int nArg; if( caseSensitive ){ pInfo = (struct compareInfo*)&likeInfoAlt; flags = SQLITE_FUNC_LIKE | SQLITE_FUNC_CASE; @@ -123039,10 +130092,13 @@ SQLITE_PRIVATE void sqlite3RegisterLikeFunctions(sqlite3 *db, int caseSensitive) pInfo = (struct compareInfo*)&likeInfoNorm; flags = SQLITE_FUNC_LIKE; } - sqlite3CreateFunc(db, "like", 2, SQLITE_UTF8, pInfo, likeFunc, 0, 0, 0, 0, 0); - sqlite3CreateFunc(db, "like", 3, SQLITE_UTF8, pInfo, likeFunc, 0, 0, 0, 0, 0); - sqlite3FindFunction(db, "like", 2, SQLITE_UTF8, 0)->funcFlags |= flags; - sqlite3FindFunction(db, "like", 3, SQLITE_UTF8, 0)->funcFlags |= flags; + for(nArg=2; nArg<=3; nArg++){ + sqlite3CreateFunc(db, "like", nArg, SQLITE_UTF8, pInfo, likeFunc, + 0, 0, 0, 0, 0); + pDef = sqlite3FindFunction(db, "like", nArg, SQLITE_UTF8, 0); + pDef->funcFlags |= flags; + pDef->funcFlags &= ~SQLITE_FUNC_UNSAFE; + } } /* @@ -123164,6 +130220,18 @@ static double xCeil(double x){ return ceil(x); } static double xFloor(double x){ return floor(x); } /* +** Some systems do not have log2() and log10() in their standard math +** libraries. +*/ +#if defined(HAVE_LOG10) && HAVE_LOG10==0 +# define log10(X) (0.4342944819032517867*log(X)) +#endif +#if defined(HAVE_LOG2) && HAVE_LOG2==0 +# define log2(X) (1.442695040888963456*log(X)) +#endif + + +/* ** Implementation of SQL functions: ** ** ln(X) - natural logarithm @@ -123201,17 +130269,15 @@ static void logFunc( } ans = log(x)/b; }else{ - ans = log(x); switch( SQLITE_PTR_TO_INT(sqlite3_user_data(context)) ){ case 1: - /* Convert from natural logarithm to log base 10 */ - ans *= 1.0/M_LN10; + ans = log10(x); break; case 2: - /* Convert from natural logarithm to log base 2 */ - ans *= 1.0/M_LN2; + ans = log2(x); break; default: + ans = log(x); break; } } @@ -123280,6 +130346,7 @@ static void piFunc( sqlite3_value **argv ){ assert( argc==0 ); + (void)argv; sqlite3_result_double(context, M_PI); } @@ -123303,6 +130370,37 @@ static void signFunc( sqlite3_result_int(context, x<0.0 ? -1 : x>0.0 ? +1 : 0); } +#ifdef SQLITE_DEBUG +/* +** Implementation of fpdecode(x,y,z) function. +** +** x is a real number that is to be decoded. y is the precision. +** z is the maximum real precision. +*/ +static void fpdecodeFunc( + sqlite3_context *context, + int argc, + sqlite3_value **argv +){ + FpDecode s; + double x; + int y, z; + char zBuf[100]; + UNUSED_PARAMETER(argc); + assert( argc==3 ); + x = sqlite3_value_double(argv[0]); + y = sqlite3_value_int(argv[1]); + z = sqlite3_value_int(argv[2]); + sqlite3FpDecode(&s, x, y, z); + if( s.isSpecial==2 ){ + sqlite3_snprintf(sizeof(zBuf), zBuf, "NaN"); + }else{ + sqlite3_snprintf(sizeof(zBuf), zBuf, "%c%.*s/%d", s.sign, s.n, s.z, s.iDP); + } + sqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT); +} +#endif /* SQLITE_DEBUG */ + /* ** All of the FuncDef structures in the aBuiltinFunc[] array above ** to the global function hash table. This occurs at start-time (as @@ -123348,8 +130446,7 @@ SQLITE_PRIVATE void sqlite3RegisterBuiltinFunctions(void){ INLINE_FUNC(likelihood, 2, INLINEFUNC_unlikely, SQLITE_FUNC_UNLIKELY), INLINE_FUNC(likely, 1, INLINEFUNC_unlikely, SQLITE_FUNC_UNLIKELY), #ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC - {1, SQLITE_FUNC_BUILTIN|SQLITE_UTF8|SQLITE_FUNC_OFFSET|SQLITE_FUNC_TYPEOF, - 0, 0, noopFunc, 0, 0, 0, "sqlite_offset", {0} }, + INLINE_FUNC(sqlite_offset, 1, INLINEFUNC_sqlite_offset, 0 ), #endif FUNCTION(ltrim, 1, 1, 0, trimFunc ), FUNCTION(ltrim, 2, 1, 0, trimFunc ), @@ -123368,12 +130465,16 @@ SQLITE_PRIVATE void sqlite3RegisterBuiltinFunctions(void){ FUNCTION2(typeof, 1, 0, 0, typeofFunc, SQLITE_FUNC_TYPEOF), FUNCTION2(subtype, 1, 0, 0, subtypeFunc, SQLITE_FUNC_TYPEOF), FUNCTION2(length, 1, 0, 0, lengthFunc, SQLITE_FUNC_LENGTH), + FUNCTION2(octet_length, 1, 0, 0, bytelengthFunc,SQLITE_FUNC_BYTELEN), FUNCTION(instr, 2, 0, 0, instrFunc ), FUNCTION(printf, -1, 0, 0, printfFunc ), FUNCTION(format, -1, 0, 0, printfFunc ), FUNCTION(unicode, 1, 0, 0, unicodeFunc ), FUNCTION(char, -1, 0, 0, charFunc ), FUNCTION(abs, 1, 0, 0, absFunc ), +#ifdef SQLITE_DEBUG + FUNCTION(fpdecode, 3, 0, 0, fpdecodeFunc ), +#endif #ifndef SQLITE_OMIT_FLOATING_POINT FUNCTION(round, 1, 0, 0, roundFunc ), FUNCTION(round, 2, 0, 0, roundFunc ), @@ -123381,6 +130482,13 @@ SQLITE_PRIVATE void sqlite3RegisterBuiltinFunctions(void){ FUNCTION(upper, 1, 0, 0, upperFunc ), FUNCTION(lower, 1, 0, 0, lowerFunc ), FUNCTION(hex, 1, 0, 0, hexFunc ), + FUNCTION(unhex, 1, 0, 0, unhexFunc ), + FUNCTION(unhex, 2, 0, 0, unhexFunc ), + FUNCTION(concat, -1, 0, 0, concatFunc ), + FUNCTION(concat, 0, 0, 0, 0 ), + FUNCTION(concat_ws, -1, 0, 0, concatwsFunc ), + FUNCTION(concat_ws, 0, 0, 0, 0 ), + FUNCTION(concat_ws, 1, 0, 0, 0 ), INLINE_FUNC(ifnull, 2, INLINEFUNC_coalesce, 0 ), VFUNCTION(random, 0, 0, 0, randomFunc ), VFUNCTION(randomblob, 1, 0, 0, randomBlob ), @@ -123410,6 +130518,8 @@ SQLITE_PRIVATE void sqlite3RegisterBuiltinFunctions(void){ groupConcatFinalize, groupConcatValue, groupConcatInverse, 0), WAGGREGATE(group_concat, 2, 0, 0, groupConcatStep, groupConcatFinalize, groupConcatValue, groupConcatInverse, 0), + WAGGREGATE(string_agg, 2, 0, 0, groupConcatStep, + groupConcatFinalize, groupConcatValue, groupConcatInverse, 0), LIKEFUNC(glob, 2, &globInfo, SQLITE_FUNC_LIKE|SQLITE_FUNC_CASE), #ifdef SQLITE_CASE_SENSITIVE_LIKE @@ -123884,7 +130994,6 @@ static void fkLookupParent( }else{ int nCol = pFKey->nCol; int regTemp = sqlite3GetTempRange(pParse, nCol); - int regRec = sqlite3GetTempReg(pParse); sqlite3VdbeAddOp3(v, OP_OpenRead, iCur, pIdx->tnum, iDb); sqlite3VdbeSetP4KeyInfo(pParse, pIdx); @@ -123924,11 +131033,10 @@ static void fkLookupParent( sqlite3VdbeGoto(v, iOk); } - sqlite3VdbeAddOp4(v, OP_MakeRecord, regTemp, nCol, regRec, + sqlite3VdbeAddOp4(v, OP_Affinity, regTemp, nCol, 0, sqlite3IndexAffinityStr(pParse->db,pIdx), nCol); - sqlite3VdbeAddOp4Int(v, OP_Found, iCur, iOk, regRec, 0); VdbeCoverage(v); - - sqlite3ReleaseTempReg(pParse, regRec); + sqlite3VdbeAddOp4Int(v, OP_Found, iCur, iOk, regTemp, nCol); + VdbeCoverage(v); sqlite3ReleaseTempRange(pParse, regTemp, nCol); } } @@ -124030,14 +131138,10 @@ static Expr *exprTableColumn( ** Operation | FK type | Action taken ** -------------------------------------------------------------------------- ** DELETE immediate Increment the "immediate constraint counter". -** Or, if the ON (UPDATE|DELETE) action is RESTRICT, -** throw a "FOREIGN KEY constraint failed" exception. ** ** INSERT immediate Decrement the "immediate constraint counter". ** ** DELETE deferred Increment the "deferred constraint counter". -** Or, if the ON (UPDATE|DELETE) action is RESTRICT, -** throw a "FOREIGN KEY constraint failed" exception. ** ** INSERT deferred Decrement the "deferred constraint counter". ** @@ -124358,6 +131462,7 @@ static int isSetNullAction(Parse *pParse, FKey *pFKey){ if( (p==pFKey->apTrigger[0] && pFKey->aAction[0]==OE_SetNull) || (p==pFKey->apTrigger[1] && pFKey->aAction[1]==OE_SetNull) ){ + assert( (pTop->db->flags & SQLITE_FkNoAction)==0 ); return 1; } } @@ -124552,6 +131657,8 @@ SQLITE_PRIVATE void sqlite3FkCheck( } if( regOld!=0 ){ int eAction = pFKey->aAction[aChange!=0]; + if( (db->flags & SQLITE_FkNoAction) ) eAction = OE_None; + fkScanChildren(pParse, pSrc, pTab, pIdx, pFKey, aiCol, regOld, 1); /* If this is a deferred FK constraint, or a CASCADE or SET NULL ** action applies, then any foreign key violations caused by @@ -124667,7 +131774,11 @@ SQLITE_PRIVATE int sqlite3FkRequired( /* Check if any parent key columns are being modified. */ for(p=sqlite3FkReferences(pTab); p; p=p->pNextTo){ if( fkParentIsModified(pTab, p, aChange, chngRowid) ){ - if( p->aAction[1]!=OE_None ) return 2; + if( (pParse->db->flags & SQLITE_FkNoAction)==0 + && p->aAction[1]!=OE_None + ){ + return 2; + } bHaveFK = 1; } } @@ -124685,9 +131796,9 @@ SQLITE_PRIVATE int sqlite3FkRequired( ** ** It returns a pointer to a Trigger structure containing a trigger ** equivalent to the ON UPDATE or ON DELETE action specified by pFKey. -** If the action is "NO ACTION" or "RESTRICT", then a NULL pointer is -** returned (these actions require no special handling by the triggers -** sub-system, code for them is created by fkScanChildren()). +** If the action is "NO ACTION" then a NULL pointer is returned (these actions +** require no special handling by the triggers sub-system, code for them is +** created by fkScanChildren()). ** ** For example, if pFKey is the foreign key and pTab is table "p" in ** the following schema: @@ -124717,6 +131828,7 @@ static Trigger *fkActionTrigger( int iAction = (pChanges!=0); /* 1 for UPDATE, 0 for DELETE */ action = pFKey->aAction[iAction]; + if( (db->flags & SQLITE_FkNoAction) ) action = OE_None; if( action==OE_Restrict && (db->flags & SQLITE_DeferFKs) ){ return 0; } @@ -124816,18 +131928,23 @@ static Trigger *fkActionTrigger( nFrom = sqlite3Strlen30(zFrom); if( action==OE_Restrict ){ - Token tFrom; + int iDb = sqlite3SchemaToIndex(db, pTab->pSchema); + SrcList *pSrc; Expr *pRaise; - tFrom.z = zFrom; - tFrom.n = nFrom; pRaise = sqlite3Expr(db, TK_RAISE, "FOREIGN KEY constraint failed"); if( pRaise ){ pRaise->affExpr = OE_Abort; } + pSrc = sqlite3SrcListAppend(pParse, 0, 0, 0); + if( pSrc ){ + assert( pSrc->nSrc==1 ); + pSrc->a[0].zName = sqlite3DbStrDup(db, zFrom); + pSrc->a[0].zDatabase = sqlite3DbStrDup(db, db->aDb[iDb].zDbSName); + } pSelect = sqlite3SelectNew(pParse, sqlite3ExprListAppend(pParse, 0, pRaise), - sqlite3SrcListAppend(pParse, 0, &tFrom, 0), + pSrc, pWhere, 0, 0, 0, 0, 0 ); @@ -124934,17 +132051,17 @@ SQLITE_PRIVATE void sqlite3FkDelete(sqlite3 *db, Table *pTab){ FKey *pNext; /* Copy of pFKey->pNextFrom */ assert( IsOrdinaryTable(pTab) ); + assert( db!=0 ); for(pFKey=pTab->u.tab.pFKey; pFKey; pFKey=pNext){ assert( db==0 || sqlite3SchemaMutexHeld(db, 0, pTab->pSchema) ); /* Remove the FK from the fkeyHash hash table. */ - if( !db || db->pnBytesFreed==0 ){ + if( db->pnBytesFreed==0 ){ if( pFKey->pPrevTo ){ pFKey->pPrevTo->pNextTo = pFKey->pNextTo; }else{ - void *p = (void *)pFKey->pNextTo; - const char *z = (p ? pFKey->pNextTo->zTo : pFKey->zTo); - sqlite3HashInsert(&pTab->pSchema->fkeyHash, z, p); + const char *z = (pFKey->pNextTo ? pFKey->pNextTo->zTo : pFKey->zTo); + sqlite3HashInsert(&pTab->pSchema->fkeyHash, z, pFKey->pNextTo); } if( pFKey->pNextTo ){ pFKey->pNextTo->pPrevTo = pFKey->pPrevTo; @@ -125007,8 +132124,10 @@ SQLITE_PRIVATE void sqlite3OpenTable( assert( pParse->pVdbe!=0 ); v = pParse->pVdbe; assert( opcode==OP_OpenWrite || opcode==OP_OpenRead ); - sqlite3TableLock(pParse, iDb, pTab->tnum, - (opcode==OP_OpenWrite)?1:0, pTab->zName); + if( !pParse->db->noSharedCache ){ + sqlite3TableLock(pParse, iDb, pTab->tnum, + (opcode==OP_OpenWrite)?1:0, pTab->zName); + } if( HasRowid(pTab) ){ sqlite3VdbeAddOp4Int(v, opcode, iCur, pTab->tnum, iDb, pTab->nNVCol); VdbeComment((v, "%s", pTab->zName)); @@ -125042,43 +132161,68 @@ SQLITE_PRIVATE void sqlite3OpenTable( ** is managed along with the rest of the Index structure. It will be ** released when sqlite3DeleteIndex() is called. */ -SQLITE_PRIVATE const char *sqlite3IndexAffinityStr(sqlite3 *db, Index *pIdx){ +static SQLITE_NOINLINE const char *computeIndexAffStr(sqlite3 *db, Index *pIdx){ + /* The first time a column affinity string for a particular index is + ** required, it is allocated and populated here. It is then stored as + ** a member of the Index structure for subsequent use. + ** + ** The column affinity string will eventually be deleted by + ** sqliteDeleteIndex() when the Index structure itself is cleaned + ** up. + */ + int n; + Table *pTab = pIdx->pTable; + pIdx->zColAff = (char *)sqlite3DbMallocRaw(0, pIdx->nColumn+1); if( !pIdx->zColAff ){ - /* The first time a column affinity string for a particular index is - ** required, it is allocated and populated here. It is then stored as - ** a member of the Index structure for subsequent use. - ** - ** The column affinity string will eventually be deleted by - ** sqliteDeleteIndex() when the Index structure itself is cleaned - ** up. - */ - int n; - Table *pTab = pIdx->pTable; - pIdx->zColAff = (char *)sqlite3DbMallocRaw(0, pIdx->nColumn+1); - if( !pIdx->zColAff ){ - sqlite3OomFault(db); - return 0; + sqlite3OomFault(db); + return 0; + } + for(n=0; n<pIdx->nColumn; n++){ + i16 x = pIdx->aiColumn[n]; + char aff; + if( x>=0 ){ + aff = pTab->aCol[x].affinity; + }else if( x==XN_ROWID ){ + aff = SQLITE_AFF_INTEGER; + }else{ + assert( x==XN_EXPR ); + assert( pIdx->bHasExpr ); + assert( pIdx->aColExpr!=0 ); + aff = sqlite3ExprAffinity(pIdx->aColExpr->a[n].pExpr); } - for(n=0; n<pIdx->nColumn; n++){ - i16 x = pIdx->aiColumn[n]; - char aff; - if( x>=0 ){ - aff = pTab->aCol[x].affinity; - }else if( x==XN_ROWID ){ - aff = SQLITE_AFF_INTEGER; - }else{ - assert( x==XN_EXPR ); - assert( pIdx->aColExpr!=0 ); - aff = sqlite3ExprAffinity(pIdx->aColExpr->a[n].pExpr); + if( aff<SQLITE_AFF_BLOB ) aff = SQLITE_AFF_BLOB; + if( aff>SQLITE_AFF_NUMERIC) aff = SQLITE_AFF_NUMERIC; + pIdx->zColAff[n] = aff; + } + pIdx->zColAff[n] = 0; + return pIdx->zColAff; +} +SQLITE_PRIVATE const char *sqlite3IndexAffinityStr(sqlite3 *db, Index *pIdx){ + if( !pIdx->zColAff ) return computeIndexAffStr(db, pIdx); + return pIdx->zColAff; +} + + +/* +** Compute an affinity string for a table. Space is obtained +** from sqlite3DbMalloc(). The caller is responsible for freeing +** the space when done. +*/ +SQLITE_PRIVATE char *sqlite3TableAffinityStr(sqlite3 *db, const Table *pTab){ + char *zColAff; + zColAff = (char *)sqlite3DbMallocRaw(db, pTab->nCol+1); + if( zColAff ){ + int i, j; + for(i=j=0; i<pTab->nCol; i++){ + if( (pTab->aCol[i].colFlags & COLFLAG_VIRTUAL)==0 ){ + zColAff[j++] = pTab->aCol[i].affinity; } - if( aff<SQLITE_AFF_BLOB ) aff = SQLITE_AFF_BLOB; - if( aff>SQLITE_AFF_NUMERIC) aff = SQLITE_AFF_NUMERIC; - pIdx->zColAff[n] = aff; } - pIdx->zColAff[n] = 0; + do{ + zColAff[j--] = 0; + }while( j>=0 && zColAff[j]<=SQLITE_AFF_BLOB ); } - - return pIdx->zColAff; + return zColAff; } /* @@ -125112,7 +132256,7 @@ SQLITE_PRIVATE const char *sqlite3IndexAffinityStr(sqlite3 *db, Index *pIdx){ ** For STRICT tables: ** ------------------ ** -** Generate an appropropriate OP_TypeCheck opcode that will verify the +** Generate an appropriate OP_TypeCheck opcode that will verify the ** datatypes against the column definitions in pTab. If iReg==0, that ** means an OP_MakeRecord opcode has already been generated and should be ** the last opcode generated. The new OP_TypeCheck needs to be inserted @@ -125122,7 +132266,7 @@ SQLITE_PRIVATE const char *sqlite3IndexAffinityStr(sqlite3 *db, Index *pIdx){ ** Apply the type checking to that array of registers. */ SQLITE_PRIVATE void sqlite3TableAffinity(Vdbe *v, Table *pTab, int iReg){ - int i, j; + int i; char *zColAff; if( pTab->tabFlags & TF_Strict ){ if( iReg==0 ){ @@ -125131,7 +132275,7 @@ SQLITE_PRIVATE void sqlite3TableAffinity(Vdbe *v, Table *pTab, int iReg){ ** OP_MakeRecord is found */ VdbeOp *pPrev; sqlite3VdbeAppendP4(v, pTab, P4_TABLE); - pPrev = sqlite3VdbeGetOp(v, -1); + pPrev = sqlite3VdbeGetLastOp(v); assert( pPrev!=0 ); assert( pPrev->opcode==OP_MakeRecord || sqlite3VdbeDb(v)->mallocFailed ); pPrev->opcode = OP_TypeCheck; @@ -125145,22 +132289,11 @@ SQLITE_PRIVATE void sqlite3TableAffinity(Vdbe *v, Table *pTab, int iReg){ } zColAff = pTab->zColAff; if( zColAff==0 ){ - sqlite3 *db = sqlite3VdbeDb(v); - zColAff = (char *)sqlite3DbMallocRaw(0, pTab->nCol+1); + zColAff = sqlite3TableAffinityStr(0, pTab); if( !zColAff ){ - sqlite3OomFault(db); + sqlite3OomFault(sqlite3VdbeDb(v)); return; } - - for(i=j=0; i<pTab->nCol; i++){ - assert( pTab->aCol[i].affinity!=0 || sqlite3VdbeParser(v)->nErr>0 ); - if( (pTab->aCol[i].colFlags & COLFLAG_VIRTUAL)==0 ){ - zColAff[j++] = pTab->aCol[i].affinity; - } - } - do{ - zColAff[j--] = 0; - }while( j>=0 && zColAff[j]<=SQLITE_AFF_BLOB ); pTab->zColAff = zColAff; } assert( zColAff!=0 ); @@ -125169,7 +132302,7 @@ SQLITE_PRIVATE void sqlite3TableAffinity(Vdbe *v, Table *pTab, int iReg){ if( iReg ){ sqlite3VdbeAddOp4(v, OP_Affinity, iReg, i, 0, zColAff, i); }else{ - assert( sqlite3VdbeGetOp(v, -1)->opcode==OP_MakeRecord + assert( sqlite3VdbeGetLastOp(v)->opcode==OP_MakeRecord || sqlite3VdbeDb(v)->mallocFailed ); sqlite3VdbeChangeP4(v, -1, zColAff, i); } @@ -125255,7 +132388,7 @@ SQLITE_PRIVATE void sqlite3ComputeGeneratedColumns( */ sqlite3TableAffinity(pParse->pVdbe, pTab, iRegStore); if( (pTab->tabFlags & TF_HasStored)!=0 ){ - pOp = sqlite3VdbeGetOp(pParse->pVdbe,-1); + pOp = sqlite3VdbeGetLastOp(pParse->pVdbe); if( pOp->opcode==OP_Affinity ){ /* Change the OP_Affinity argument to '@' (NONE) for all stored ** columns. '@' is the no-op affinity and those columns have not @@ -125737,6 +132870,14 @@ SQLITE_PRIVATE void sqlite3Insert( #endif assert( (pTrigger && tmask) || (pTrigger==0 && tmask==0) ); +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x10000 ){ + sqlite3TreeViewLine(0, "In sqlite3Insert() at %s:%d", __FILE__, __LINE__); + sqlite3TreeViewInsert(pParse->pWith, pTabList, pColumn, pSelect, pList, + onError, pUpsert, pTrigger); + } +#endif + /* If pTab is really a view, make sure it has been initialized. ** ViewGetColumnNames() is a no-op if pTab is not a view. */ @@ -125746,7 +132887,7 @@ SQLITE_PRIVATE void sqlite3Insert( /* Cannot insert into a read-only table. */ - if( sqlite3IsReadOnly(pParse, pTab, tmask) ){ + if( sqlite3IsReadOnly(pParse, pTab, pTrigger) ){ goto insert_cleanup; } @@ -125815,13 +132956,15 @@ SQLITE_PRIVATE void sqlite3Insert( */ bIdListInOrder = (pTab->tabFlags & (TF_OOOHidden|TF_HasStored))==0; if( pColumn ){ + assert( pColumn->eU4!=EU4_EXPR ); + pColumn->eU4 = EU4_IDX; for(i=0; i<pColumn->nId; i++){ - pColumn->a[i].idx = -1; + pColumn->a[i].u4.idx = -1; } for(i=0; i<pColumn->nId; i++){ for(j=0; j<pTab->nCol; j++){ if( sqlite3StrICmp(pColumn->a[i].zName, pTab->aCol[j].zCnName)==0 ){ - pColumn->a[i].idx = j; + pColumn->a[i].u4.idx = j; if( i!=j ) bIdListInOrder = 0; if( j==pTab->iPKey ){ ipkColumn = i; assert( !withoutRowid ); @@ -126123,7 +133266,8 @@ SQLITE_PRIVATE void sqlite3Insert( } } if( pColumn ){ - for(j=0; j<pColumn->nId && pColumn->a[j].idx!=i; j++){} + assert( pColumn->eU4==EU4_IDX ); + for(j=0; j<pColumn->nId && pColumn->a[j].u4.idx!=i; j++){} if( j>=pColumn->nId ){ /* A column not named in the insert column list gets its ** default value */ @@ -126150,7 +133294,12 @@ SQLITE_PRIVATE void sqlite3Insert( sqlite3VdbeAddOp2(v, OP_SCopy, regFromSelect+k, iRegStore); } }else{ - sqlite3ExprCode(pParse, pList->a[k].pExpr, iRegStore); + Expr *pX = pList->a[k].pExpr; + int y = sqlite3ExprCodeTarget(pParse, pX, iRegStore); + if( y!=iRegStore ){ + sqlite3VdbeAddOp2(v, + ExprHasProperty(pX, EP_Subquery) ? OP_Copy : OP_SCopy, y, iRegStore); + } } } @@ -126185,7 +133334,7 @@ SQLITE_PRIVATE void sqlite3Insert( } /* Copy the new data already generated. */ - assert( pTab->nNVCol>0 ); + assert( pTab->nNVCol>0 || pParse->nErr>0 ); sqlite3VdbeAddOp3(v, OP_Copy, regRowid+1, regCols+1, pTab->nNVCol-1); #ifndef SQLITE_OMIT_GENERATED_COLUMNS @@ -126287,7 +133436,9 @@ SQLITE_PRIVATE void sqlite3Insert( sqlite3GenerateConstraintChecks(pParse, pTab, aRegIdx, iDataCur, iIdxCur, regIns, 0, ipkColumn>=0, onError, endOfLoop, &isReplace, 0, pUpsert ); - sqlite3FkCheck(pParse, pTab, 0, regIns, 0, 0); + if( db->flags & SQLITE_ForeignKeys ){ + sqlite3FkCheck(pParse, pTab, 0, regIns, 0, 0); + } /* Set the OPFLAG_USESEEKRESULT flag if either (a) there are no REPLACE ** constraints or (b) there are no triggers and this table is not a @@ -126371,7 +133522,7 @@ insert_cleanup: sqlite3UpsertDelete(db, pUpsert); sqlite3SelectDelete(db, pSelect); sqlite3IdListDelete(db, pColumn); - sqlite3DbFree(db, aRegIdx); + if( aRegIdx ) sqlite3DbNNFreeNN(db, aRegIdx); } /* Make sure "isView" and other macros defined above are undefined. Otherwise @@ -126397,7 +133548,7 @@ insert_cleanup: /* This is the Walker callback from sqlite3ExprReferencesUpdatedColumn(). * Set bit 0x01 of pWalker->eCode if pWalker->eCode to 0 and if this ** expression node references any of the -** columns that are being modifed by an UPDATE statement. +** columns that are being modified by an UPDATE statement. */ static int checkConstraintExprNode(Walker *pWalker, Expr *pExpr){ if( pExpr->op==TK_COLUMN ){ @@ -126620,7 +133771,7 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks( int *aiChng, /* column i is unchanged if aiChng[i]<0 */ Upsert *pUpsert /* ON CONFLICT clauses, if any. NULL otherwise */ ){ - Vdbe *v; /* VDBE under constrution */ + Vdbe *v; /* VDBE under construction */ Index *pIdx; /* Pointer to one of the indices */ Index *pPk = 0; /* The PRIMARY KEY index for WITHOUT ROWID tables */ sqlite3 *db; /* Database connection */ @@ -126735,6 +133886,7 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks( case OE_Fail: { char *zMsg = sqlite3MPrintf(db, "%s.%s", pTab->zName, pCol->zCnName); + testcase( zMsg==0 && db->mallocFailed==0 ); sqlite3VdbeAddOp3(v, OP_HaltIfNull, SQLITE_CONSTRAINT_NOTNULL, onError, iReg); sqlite3VdbeAppendP4(v, zMsg, P4_DYNAMIC); @@ -127102,7 +134254,7 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks( pIdx; pIdx = indexIteratorNext(&sIdxIter, &ix) ){ - int regIdx; /* Range of registers hold conent for pIdx */ + int regIdx; /* Range of registers holding content for pIdx */ int regR; /* Range of registers holding conflicting PK */ int iThisCur; /* Cursor for this UNIQUE index */ int addrUniqueOk; /* Jump here if the UNIQUE constraint is satisfied */ @@ -127254,7 +134406,7 @@ SQLITE_PRIVATE void sqlite3GenerateConstraintChecks( if( isUpdate ){ /* If currently processing the PRIMARY KEY of a WITHOUT ROWID ** table, only conflict if the new PRIMARY KEY values are actually - ** different from the old. + ** different from the old. See TH3 withoutrowid04.test. ** ** For a UNIQUE index, only conflict if the PRIMARY KEY values ** of the matched index row are different from the original PRIMARY @@ -127597,6 +134749,8 @@ SQLITE_PRIVATE int sqlite3OpenTableAndIndices( assert( op==OP_OpenRead || op==OP_OpenWrite ); assert( op==OP_OpenWrite || p5==0 ); + assert( piDataCur!=0 ); + assert( piIdxCur!=0 ); if( IsVirtual(pTab) ){ /* This routine is a no-op for virtual tables. Leave the output ** variables *piDataCur and *piIdxCur set to illegal cursor numbers @@ -127609,18 +134763,18 @@ SQLITE_PRIVATE int sqlite3OpenTableAndIndices( assert( v!=0 ); if( iBase<0 ) iBase = pParse->nTab; iDataCur = iBase++; - if( piDataCur ) *piDataCur = iDataCur; + *piDataCur = iDataCur; if( HasRowid(pTab) && (aToOpen==0 || aToOpen[0]) ){ sqlite3OpenTable(pParse, iDataCur, iDb, pTab, op); - }else{ + }else if( pParse->db->noSharedCache==0 ){ sqlite3TableLock(pParse, iDb, pTab->tnum, op==OP_OpenWrite, pTab->zName); } - if( piIdxCur ) *piIdxCur = iBase; + *piIdxCur = iBase; for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){ int iIdxCur = iBase++; assert( pIdx->pSchema==pTab->pSchema ); if( IsPrimaryKeyIndex(pIdx) && !HasRowid(pTab) ){ - if( piDataCur ) *piDataCur = iIdxCur; + *piDataCur = iIdxCur; p5 = 0; } if( aToOpen==0 || aToOpen[i+1] ){ @@ -127918,7 +135072,7 @@ static int xferOptimization( } #endif #ifndef SQLITE_OMIT_FOREIGN_KEY - /* Disallow the transfer optimization if the destination table constains + /* Disallow the transfer optimization if the destination table contains ** any foreign key constraints. This is more restrictive than necessary. ** But the main beneficiary of the transfer optimization is the VACUUM ** command, and the VACUUM command disables foreign key constraints. So @@ -128598,9 +135752,9 @@ struct sqlite3_api_routines { const char *(*filename_journal)(const char*); const char *(*filename_wal)(const char*); /* Version 3.32.0 and later */ - char *(*create_filename)(const char*,const char*,const char*, + const char *(*create_filename)(const char*,const char*,const char*, int,const char**); - void (*free_filename)(char*); + void (*free_filename)(const char*); sqlite3_file *(*database_file_object)(const char*); /* Version 3.34.0 and later */ int (*txn_state)(sqlite3*,const char*); @@ -128618,6 +135772,21 @@ struct sqlite3_api_routines { int (*vtab_in)(sqlite3_index_info*,int,int); int (*vtab_in_first)(sqlite3_value*,sqlite3_value**); int (*vtab_in_next)(sqlite3_value*,sqlite3_value**); + /* Version 3.39.0 and later */ + int (*deserialize)(sqlite3*,const char*,unsigned char*, + sqlite3_int64,sqlite3_int64,unsigned); + unsigned char *(*serialize)(sqlite3*,const char *,sqlite3_int64*, + unsigned int); + const char *(*db_name)(sqlite3*,int); + /* Version 3.40.0 and later */ + int (*value_encoding)(sqlite3_value*); + /* Version 3.41.0 and later */ + int (*is_interrupted)(sqlite3*); + /* Version 3.43.0 and later */ + int (*stmt_explain)(sqlite3_stmt*,int); + /* Version 3.44.0 and later */ + void *(*get_clientdata)(sqlite3*,const char*); + int (*set_clientdata)(sqlite3*, const char*, void*, void(*)(void*)); }; /* @@ -128936,6 +136105,21 @@ typedef int (*sqlite3_loadext_entry)( #define sqlite3_vtab_in sqlite3_api->vtab_in #define sqlite3_vtab_in_first sqlite3_api->vtab_in_first #define sqlite3_vtab_in_next sqlite3_api->vtab_in_next +/* Version 3.39.0 and later */ +#ifndef SQLITE_OMIT_DESERIALIZE +#define sqlite3_deserialize sqlite3_api->deserialize +#define sqlite3_serialize sqlite3_api->serialize +#endif +#define sqlite3_db_name sqlite3_api->db_name +/* Version 3.40.0 and later */ +#define sqlite3_value_encoding sqlite3_api->value_encoding +/* Version 3.41.0 and later */ +#define sqlite3_is_interrupted sqlite3_api->is_interrupted +/* Version 3.43.0 and later */ +#define sqlite3_stmt_explain sqlite3_api->stmt_explain +/* Version 3.44.0 and later */ +#define sqlite3_get_clientdata sqlite3_api->get_clientdata +#define sqlite3_set_clientdata sqlite3_api->set_clientdata #endif /* !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) */ #if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) @@ -129427,11 +136611,37 @@ static const sqlite3_api_routines sqlite3Apis = { sqlite3_autovacuum_pages, /* Version 3.38.0 and later */ sqlite3_error_offset, +#ifndef SQLITE_OMIT_VIRTUALTABLE sqlite3_vtab_rhs_value, sqlite3_vtab_distinct, sqlite3_vtab_in, sqlite3_vtab_in_first, - sqlite3_vtab_in_next + sqlite3_vtab_in_next, +#else + 0, + 0, + 0, + 0, + 0, +#endif + /* Version 3.39.0 and later */ +#ifndef SQLITE_OMIT_DESERIALIZE + sqlite3_deserialize, + sqlite3_serialize, +#else + 0, + 0, +#endif + sqlite3_db_name, + /* Version 3.40.0 and later */ + sqlite3_value_encoding, + /* Version 3.41.0 and later */ + sqlite3_is_interrupted, + /* Version 3.43.0 and later */ + sqlite3_stmt_explain, + /* Version 3.44.0 and later */ + sqlite3_get_clientdata, + sqlite3_set_clientdata }; /* True if x is the directory separator character @@ -129504,15 +136714,25 @@ static int sqlite3LoadExtension( /* tag-20210611-1. Some dlopen() implementations will segfault if given ** an oversize filename. Most filesystems have a pathname limit of 4K, ** so limit the extension filename length to about twice that. - ** https://sqlite.org/forum/forumpost/08a0d6d9bf */ + ** https://sqlite.org/forum/forumpost/08a0d6d9bf + ** + ** Later (2023-03-25): Save an extra 6 bytes for the filename suffix. + ** See https://sqlite.org/forum/forumpost/24083b579d. + */ if( nMsg>SQLITE_MAX_PATHLEN ) goto extension_not_found; + /* Do not allow sqlite3_load_extension() to link to a copy of the + ** running application, by passing in an empty filename. */ + if( nMsg==0 ) goto extension_not_found; + handle = sqlite3OsDlOpen(pVfs, zFile); #if SQLITE_OS_UNIX || SQLITE_OS_WIN for(ii=0; ii<ArraySize(azEndings) && handle==0; ii++){ char *zAltFile = sqlite3_mprintf("%s.%s", zFile, azEndings[ii]); if( zAltFile==0 ) return SQLITE_NOMEM_BKPT; - handle = sqlite3OsDlOpen(pVfs, zAltFile); + if( nMsg+strlen(azEndings[ii])+1<=SQLITE_MAX_PATHLEN ){ + handle = sqlite3OsDlOpen(pVfs, zAltFile); + } sqlite3_free(zAltFile); } #endif @@ -129637,6 +136857,9 @@ SQLITE_PRIVATE void sqlite3CloseExtensions(sqlite3 *db){ ** default so as not to open security holes in older applications. */ SQLITE_API int sqlite3_enable_load_extension(sqlite3 *db, int onoff){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; +#endif sqlite3_mutex_enter(db->mutex); if( onoff ){ db->flags |= SQLITE_LoadExtension|SQLITE_LoadExtFunc; @@ -129686,6 +136909,9 @@ SQLITE_API int sqlite3_auto_extension( void (*xInit)(void) ){ int rc = SQLITE_OK; +#ifdef SQLITE_ENABLE_API_ARMOR + if( xInit==0 ) return SQLITE_MISUSE_BKPT; +#endif #ifndef SQLITE_OMIT_AUTOINIT rc = sqlite3_initialize(); if( rc ){ @@ -129738,6 +136964,9 @@ SQLITE_API int sqlite3_cancel_auto_extension( int i; int n = 0; wsdAutoextInit; +#ifdef SQLITE_ENABLE_API_ARMOR + if( xInit==0 ) return 0; +#endif sqlite3_mutex_enter(mutex); for(i=(int)wsdAutoext.nExt-1; i>=0; i--){ if( wsdAutoext.aExt[i]==xInit ){ @@ -130102,7 +137331,7 @@ static const PragmaName aPragmaName[] = { #if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS) {/* zName: */ "database_list", /* ePragTyp: */ PragTyp_DATABASE_LIST, - /* ePragFlg: */ PragFlg_NeedSchema|PragFlg_Result0, + /* ePragFlg: */ PragFlg_Result0, /* ColNames: */ 47, 3, /* iArg: */ 0 }, #endif @@ -130790,15 +138019,16 @@ static void pragmaFunclistLine( int isBuiltin, /* True if this is a built-in function */ int showInternFuncs /* True if showing internal functions */ ){ + u32 mask = + SQLITE_DETERMINISTIC | + SQLITE_DIRECTONLY | + SQLITE_SUBTYPE | + SQLITE_INNOCUOUS | + SQLITE_FUNC_INTERNAL + ; + if( showInternFuncs ) mask = 0xffffffff; for(; p; p=p->pNext){ const char *zType; - static const u32 mask = - SQLITE_DETERMINISTIC | - SQLITE_DIRECTONLY | - SQLITE_SUBTYPE | - SQLITE_INNOCUOUS | - SQLITE_FUNC_INTERNAL - ; static const char *azEnc[] = { 0, "utf8", "utf16le", "utf16be" }; assert( SQLITE_FUNC_ENCMASK==0x3 ); @@ -131290,7 +138520,7 @@ SQLITE_PRIVATE void sqlite3Pragma( */ #ifndef SQLITE_OMIT_AUTOVACUUM case PragTyp_INCREMENTAL_VACUUM: { - int iLimit, addr; + int iLimit = 0, addr; if( zRight==0 || !sqlite3GetInt32(zRight, &iLimit) || iLimit<=0 ){ iLimit = 0x7fffffff; } @@ -131336,7 +138566,7 @@ SQLITE_PRIVATE void sqlite3Pragma( ** ** The first form reports the current local setting for the ** page cache spill size. The second form turns cache spill on - ** or off. When turnning cache spill on, the size is set to the + ** or off. When turning cache spill on, the size is set to the ** current cache_size. The third form sets a spill size that ** may be different form the cache size. ** If N is positive then that is the @@ -131447,6 +138677,7 @@ SQLITE_PRIVATE void sqlite3Pragma( ** */ case PragTyp_TEMP_STORE_DIRECTORY: { + sqlite3_mutex_enter(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); if( !zRight ){ returnSingleText(v, sqlite3_temp_directory); }else{ @@ -131456,6 +138687,7 @@ SQLITE_PRIVATE void sqlite3Pragma( rc = sqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res); if( rc!=SQLITE_OK || res==0 ){ sqlite3ErrorMsg(pParse, "not a writable directory"); + sqlite3_mutex_leave(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); goto pragma_out; } } @@ -131473,6 +138705,7 @@ SQLITE_PRIVATE void sqlite3Pragma( } #endif /* SQLITE_OMIT_WSD */ } + sqlite3_mutex_leave(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); break; } @@ -131491,6 +138724,7 @@ SQLITE_PRIVATE void sqlite3Pragma( ** */ case PragTyp_DATA_STORE_DIRECTORY: { + sqlite3_mutex_enter(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); if( !zRight ){ returnSingleText(v, sqlite3_data_directory); }else{ @@ -131500,6 +138734,7 @@ SQLITE_PRIVATE void sqlite3Pragma( rc = sqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res); if( rc!=SQLITE_OK || res==0 ){ sqlite3ErrorMsg(pParse, "not a writable directory"); + sqlite3_mutex_leave(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); goto pragma_out; } } @@ -131511,6 +138746,7 @@ SQLITE_PRIVATE void sqlite3Pragma( } #endif /* SQLITE_OMIT_WSD */ } + sqlite3_mutex_leave(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR)); break; } #endif @@ -131600,7 +138836,11 @@ SQLITE_PRIVATE void sqlite3Pragma( #endif if( sqlite3GetBoolean(zRight, 0) ){ - db->flags |= mask; + if( (mask & SQLITE_WriteSchema)==0 + || (db->flags & SQLITE_Defensive)==0 + ){ + db->flags |= mask; + } }else{ db->flags &= ~mask; if( mask==SQLITE_DeferFKs ) db->nDeferredImmCons = 0; @@ -131978,7 +139218,6 @@ SQLITE_PRIVATE void sqlite3Pragma( HashElem *k; /* Loop counter: Next table in schema */ int x; /* result variable */ int regResult; /* 3 registers to hold a result row */ - int regKey; /* Register to hold key for checking the FK */ int regRow; /* Registers to hold a row from pTab */ int addrTop; /* Top of a loop checking foreign keys */ int addrOk; /* Jump here if the key is OK */ @@ -131986,7 +139225,6 @@ SQLITE_PRIVATE void sqlite3Pragma( regResult = pParse->nMem+1; pParse->nMem += 4; - regKey = ++pParse->nMem; regRow = ++pParse->nMem; k = sqliteHashFirst(&db->aDb[iDb].pSchema->tblHash); while( k ){ @@ -132002,7 +139240,7 @@ SQLITE_PRIVATE void sqlite3Pragma( zDb = db->aDb[iDb].zDbSName; sqlite3CodeVerifySchema(pParse, iDb); sqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName); - if( pTab->nCol+regRow>pParse->nMem ) pParse->nMem = pTab->nCol + regRow; + sqlite3TouchRegister(pParse, pTab->nCol+regRow); sqlite3OpenTable(pParse, 0, iDb, pTab, OP_OpenRead); sqlite3VdbeLoadString(v, regResult, pTab->zName); assert( IsOrdinaryTable(pTab) ); @@ -132043,7 +139281,7 @@ SQLITE_PRIVATE void sqlite3Pragma( ** regRow..regRow+n. If any of the child key values are NULL, this ** row cannot cause an FK violation. Jump directly to addrOk in ** this case. */ - if( regRow+pFK->nCol>pParse->nMem ) pParse->nMem = regRow+pFK->nCol; + sqlite3TouchRegister(pParse, regRow + pFK->nCol); for(j=0; j<pFK->nCol; j++){ int iCol = aiCols ? aiCols[j] : pFK->aCol[j].iFrom; sqlite3ExprCodeGetColumnOfTable(v, pTab, 0, iCol, regRow+j); @@ -132053,9 +139291,9 @@ SQLITE_PRIVATE void sqlite3Pragma( /* Generate code to query the parent index for a matching parent ** key. If a match is found, jump to addrOk. */ if( pIdx ){ - sqlite3VdbeAddOp4(v, OP_MakeRecord, regRow, pFK->nCol, regKey, + sqlite3VdbeAddOp4(v, OP_Affinity, regRow, pFK->nCol, 0, sqlite3IndexAffinityStr(db,pIdx), pFK->nCol); - sqlite3VdbeAddOp4Int(v, OP_Found, i, addrOk, regKey, 0); + sqlite3VdbeAddOp4Int(v, OP_Found, i, addrOk, regRow, pFK->nCol); VdbeCoverage(v); }else if( pParent ){ int jmp = sqlite3VdbeCurrentAddr(v)+2; @@ -132110,9 +139348,9 @@ SQLITE_PRIVATE void sqlite3Pragma( ** The "quick_check" is reduced version of ** integrity_check designed to detect most database corruption ** without the overhead of cross-checking indexes. Quick_check - ** is linear time wherease integrity_check is O(NlogN). + ** is linear time whereas integrity_check is O(NlogN). ** - ** The maximum nubmer of errors is 100 by default. A different default + ** The maximum number of errors is 100 by default. A different default ** can be specified using a numeric parameter N. ** ** Or, the parameter N can be the name of a table. In that case, only @@ -132172,6 +139410,7 @@ SQLITE_PRIVATE void sqlite3Pragma( if( iDb>=0 && i!=iDb ) continue; sqlite3CodeVerifySchema(pParse, i); + pParse->okConstFactor = 0; /* tag-20230327-1 */ /* Do an integrity check of the B-Tree ** @@ -132207,7 +139446,7 @@ SQLITE_PRIVATE void sqlite3Pragma( aRoot[0] = cnt; /* Make sure sufficient number of registers have been allocated */ - pParse->nMem = MAX( pParse->nMem, 8+mxIdx ); + sqlite3TouchRegister(pParse, 8+mxIdx); sqlite3ClearTempRegCache(pParse); /* Do the b-tree integrity checks */ @@ -132226,15 +139465,48 @@ SQLITE_PRIVATE void sqlite3Pragma( for(x=sqliteHashFirst(pTbls); x; x=sqliteHashNext(x)){ Table *pTab = sqliteHashData(x); Index *pIdx, *pPk; - Index *pPrior = 0; + Index *pPrior = 0; /* Previous index */ int loopTop; int iDataCur, iIdxCur; int r1 = -1; - int bStrict; + int bStrict; /* True for a STRICT table */ + int r2; /* Previous key for WITHOUT ROWID tables */ + int mxCol; /* Maximum non-virtual column number */ - if( !IsOrdinaryTable(pTab) ) continue; if( pObjTab && pObjTab!=pTab ) continue; - pPk = HasRowid(pTab) ? 0 : sqlite3PrimaryKeyIndex(pTab); + if( !IsOrdinaryTable(pTab) ){ +#ifndef SQLITE_OMIT_VIRTUALTABLE + sqlite3_vtab *pVTab; + int a1; + if( !IsVirtual(pTab) ) continue; + if( pTab->nCol<=0 ){ + const char *zMod = pTab->u.vtab.azArg[0]; + if( sqlite3HashFind(&db->aModule, zMod)==0 ) continue; + } + sqlite3ViewGetColumnNames(pParse, pTab); + if( pTab->u.vtab.p==0 ) continue; + pVTab = pTab->u.vtab.p->pVtab; + if( NEVER(pVTab==0) ) continue; + if( NEVER(pVTab->pModule==0) ) continue; + if( pVTab->pModule->iVersion<4 ) continue; + if( pVTab->pModule->xIntegrity==0 ) continue; + sqlite3VdbeAddOp3(v, OP_VCheck, i, 3, isQuick); + pTab->nTabRef++; + sqlite3VdbeAppendP4(v, pTab, P4_TABLEREF); + a1 = sqlite3VdbeAddOp1(v, OP_IsNull, 3); VdbeCoverage(v); + integrityCheckResultRow(v); + sqlite3VdbeJumpHere(v, a1); +#endif + continue; + } + if( isQuick || HasRowid(pTab) ){ + pPk = 0; + r2 = 0; + }else{ + pPk = sqlite3PrimaryKeyIndex(pTab); + r2 = sqlite3GetTempRange(pParse, pPk->nKeyCol); + sqlite3VdbeAddOp3(v, OP_Null, 1, r2, r2+pPk->nKeyCol-1); + } sqlite3OpenTableAndIndices(pParse, pTab, OP_OpenRead, 0, 1, 0, &iDataCur, &iIdxCur); /* reg[7] counts the number of entries in the table. @@ -132248,52 +139520,180 @@ SQLITE_PRIVATE void sqlite3Pragma( assert( sqlite3NoTempsInRange(pParse,1,7+j) ); sqlite3VdbeAddOp2(v, OP_Rewind, iDataCur, 0); VdbeCoverage(v); loopTop = sqlite3VdbeAddOp2(v, OP_AddImm, 7, 1); + + /* Fetch the right-most column from the table. This will cause + ** the entire record header to be parsed and sanity checked. It + ** will also prepopulate the cursor column cache that is used + ** by the OP_IsType code, so it is a required step. + */ + assert( !IsVirtual(pTab) ); + if( HasRowid(pTab) ){ + mxCol = -1; + for(j=0; j<pTab->nCol; j++){ + if( (pTab->aCol[j].colFlags & COLFLAG_VIRTUAL)==0 ) mxCol++; + } + if( mxCol==pTab->iPKey ) mxCol--; + }else{ + /* COLFLAG_VIRTUAL columns are not included in the WITHOUT ROWID + ** PK index column-count, so there is no need to account for them + ** in this case. */ + mxCol = sqlite3PrimaryKeyIndex(pTab)->nColumn-1; + } + if( mxCol>=0 ){ + sqlite3VdbeAddOp3(v, OP_Column, iDataCur, mxCol, 3); + sqlite3VdbeTypeofColumn(v, 3); + } + if( !isQuick ){ - /* Sanity check on record header decoding */ - sqlite3VdbeAddOp3(v, OP_Column, iDataCur, pTab->nNVCol-1,3); - sqlite3VdbeChangeP5(v, OPFLAG_TYPEOFARG); - VdbeComment((v, "(right-most column)")); + if( pPk ){ + /* Verify WITHOUT ROWID keys are in ascending order */ + int a1; + char *zErr; + a1 = sqlite3VdbeAddOp4Int(v, OP_IdxGT, iDataCur, 0,r2,pPk->nKeyCol); + VdbeCoverage(v); + sqlite3VdbeAddOp1(v, OP_IsNull, r2); VdbeCoverage(v); + zErr = sqlite3MPrintf(db, + "row not in PRIMARY KEY order for %s", + pTab->zName); + sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, zErr, P4_DYNAMIC); + integrityCheckResultRow(v); + sqlite3VdbeJumpHere(v, a1); + sqlite3VdbeJumpHere(v, a1+1); + for(j=0; j<pPk->nKeyCol; j++){ + sqlite3ExprCodeLoadIndexColumn(pParse, pPk, iDataCur, j, r2+j); + } + } } - /* Verify that all NOT NULL columns really are NOT NULL. At the - ** same time verify the type of the content of STRICT tables */ + /* Verify datatypes for all columns: + ** + ** (1) NOT NULL columns may not contain a NULL + ** (2) Datatype must be exact for non-ANY columns in STRICT tables + ** (3) Datatype for TEXT columns in non-STRICT tables must be + ** NULL, TEXT, or BLOB. + ** (4) Datatype for numeric columns in non-STRICT tables must not + ** be a TEXT value that can be losslessly converted to numeric. + */ bStrict = (pTab->tabFlags & TF_Strict)!=0; for(j=0; j<pTab->nCol; j++){ char *zErr; - Column *pCol = pTab->aCol + j; - int doError, jmp2; + Column *pCol = pTab->aCol + j; /* The column to be checked */ + int labelError; /* Jump here to report an error */ + int labelOk; /* Jump here if all looks ok */ + int p1, p3, p4; /* Operands to the OP_IsType opcode */ + int doTypeCheck; /* Check datatypes (besides NOT NULL) */ + if( j==pTab->iPKey ) continue; - if( pCol->notNull==0 && !bStrict ) continue; - doError = bStrict ? sqlite3VdbeMakeLabel(pParse) : 0; - sqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur, j, 3); - if( sqlite3VdbeGetOp(v,-1)->opcode==OP_Column ){ - sqlite3VdbeChangeP5(v, OPFLAG_TYPEOFARG); + if( bStrict ){ + doTypeCheck = pCol->eCType>COLTYPE_ANY; + }else{ + doTypeCheck = pCol->affinity>SQLITE_AFF_BLOB; + } + if( pCol->notNull==0 && !doTypeCheck ) continue; + + /* Compute the operands that will be needed for OP_IsType */ + p4 = SQLITE_NULL; + if( pCol->colFlags & COLFLAG_VIRTUAL ){ + sqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur, j, 3); + p1 = -1; + p3 = 3; + }else{ + if( pCol->iDflt ){ + sqlite3_value *pDfltValue = 0; + sqlite3ValueFromExpr(db, sqlite3ColumnExpr(pTab,pCol), ENC(db), + pCol->affinity, &pDfltValue); + if( pDfltValue ){ + p4 = sqlite3_value_type(pDfltValue); + sqlite3ValueFree(pDfltValue); + } + } + p1 = iDataCur; + if( !HasRowid(pTab) ){ + testcase( j!=sqlite3TableColumnToStorage(pTab, j) ); + p3 = sqlite3TableColumnToIndex(sqlite3PrimaryKeyIndex(pTab), j); + }else{ + p3 = sqlite3TableColumnToStorage(pTab,j); + testcase( p3!=j); + } } + + labelError = sqlite3VdbeMakeLabel(pParse); + labelOk = sqlite3VdbeMakeLabel(pParse); if( pCol->notNull ){ - jmp2 = sqlite3VdbeAddOp1(v, OP_NotNull, 3); VdbeCoverage(v); + /* (1) NOT NULL columns may not contain a NULL */ + int jmp3; + int jmp2 = sqlite3VdbeAddOp4Int(v, OP_IsType, p1, labelOk, p3, p4); + VdbeCoverage(v); + if( p1<0 ){ + sqlite3VdbeChangeP5(v, 0x0f); /* INT, REAL, TEXT, or BLOB */ + jmp3 = jmp2; + }else{ + sqlite3VdbeChangeP5(v, 0x0d); /* INT, TEXT, or BLOB */ + /* OP_IsType does not detect NaN values in the database file + ** which should be treated as a NULL. So if the header type + ** is REAL, we have to load the actual data using OP_Column + ** to reliably determine if the value is a NULL. */ + sqlite3VdbeAddOp3(v, OP_Column, p1, p3, 3); + jmp3 = sqlite3VdbeAddOp2(v, OP_NotNull, 3, labelOk); + VdbeCoverage(v); + } zErr = sqlite3MPrintf(db, "NULL value in %s.%s", pTab->zName, pCol->zCnName); sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, zErr, P4_DYNAMIC); - if( bStrict && pCol->eCType!=COLTYPE_ANY ){ - sqlite3VdbeGoto(v, doError); + if( doTypeCheck ){ + sqlite3VdbeGoto(v, labelError); + sqlite3VdbeJumpHere(v, jmp2); + sqlite3VdbeJumpHere(v, jmp3); }else{ - integrityCheckResultRow(v); + /* VDBE byte code will fall thru */ } - sqlite3VdbeJumpHere(v, jmp2); } - if( (pTab->tabFlags & TF_Strict)!=0 - && pCol->eCType!=COLTYPE_ANY - ){ - jmp2 = sqlite3VdbeAddOp3(v, OP_IsNullOrType, 3, 0, - sqlite3StdTypeMap[pCol->eCType-1]); + if( bStrict && doTypeCheck ){ + /* (2) Datatype must be exact for non-ANY columns in STRICT tables*/ + static unsigned char aStdTypeMask[] = { + 0x1f, /* ANY */ + 0x18, /* BLOB */ + 0x11, /* INT */ + 0x11, /* INTEGER */ + 0x13, /* REAL */ + 0x14 /* TEXT */ + }; + sqlite3VdbeAddOp4Int(v, OP_IsType, p1, labelOk, p3, p4); + assert( pCol->eCType>=1 && pCol->eCType<=sizeof(aStdTypeMask) ); + sqlite3VdbeChangeP5(v, aStdTypeMask[pCol->eCType-1]); VdbeCoverage(v); zErr = sqlite3MPrintf(db, "non-%s value in %s.%s", sqlite3StdType[pCol->eCType-1], pTab->zName, pTab->aCol[j].zCnName); sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, zErr, P4_DYNAMIC); - sqlite3VdbeResolveLabel(v, doError); - integrityCheckResultRow(v); - sqlite3VdbeJumpHere(v, jmp2); + }else if( !bStrict && pCol->affinity==SQLITE_AFF_TEXT ){ + /* (3) Datatype for TEXT columns in non-STRICT tables must be + ** NULL, TEXT, or BLOB. */ + sqlite3VdbeAddOp4Int(v, OP_IsType, p1, labelOk, p3, p4); + sqlite3VdbeChangeP5(v, 0x1c); /* NULL, TEXT, or BLOB */ + VdbeCoverage(v); + zErr = sqlite3MPrintf(db, "NUMERIC value in %s.%s", + pTab->zName, pTab->aCol[j].zCnName); + sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, zErr, P4_DYNAMIC); + }else if( !bStrict && pCol->affinity>=SQLITE_AFF_NUMERIC ){ + /* (4) Datatype for numeric columns in non-STRICT tables must not + ** be a TEXT value that can be converted to numeric. */ + sqlite3VdbeAddOp4Int(v, OP_IsType, p1, labelOk, p3, p4); + sqlite3VdbeChangeP5(v, 0x1b); /* NULL, INT, FLOAT, or BLOB */ + VdbeCoverage(v); + if( p1>=0 ){ + sqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur, j, 3); + } + sqlite3VdbeAddOp4(v, OP_Affinity, 3, 1, 0, "C", P4_STATIC); + sqlite3VdbeAddOp4Int(v, OP_IsType, -1, labelOk, 3, p4); + sqlite3VdbeChangeP5(v, 0x1c); /* NULL, TEXT, or BLOB */ + VdbeCoverage(v); + zErr = sqlite3MPrintf(db, "TEXT value in %s.%s", + pTab->zName, pTab->aCol[j].zCnName); + sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, zErr, P4_DYNAMIC); } + sqlite3VdbeResolveLabel(v, labelError); + integrityCheckResultRow(v); + sqlite3VdbeResolveLabel(v, labelOk); } /* Verify CHECK constraints */ if( pTab->pCheck && (db->flags & SQLITE_IgnoreChecks)==0 ){ @@ -132322,7 +139722,8 @@ SQLITE_PRIVATE void sqlite3Pragma( if( !isQuick ){ /* Omit the remaining tests for quick_check */ /* Validate index entries for the current row */ for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){ - int jmp2, jmp3, jmp4, jmp5; + int jmp2, jmp3, jmp4, jmp5, label6; + int kk; int ckUniq = sqlite3VdbeMakeLabel(pParse); if( pPk==pIdx ) continue; r1 = sqlite3GenerateIndexKey(pParse, pIdx, iDataCur, 0, 0, &jmp3, @@ -132340,13 +139741,49 @@ SQLITE_PRIVATE void sqlite3Pragma( sqlite3VdbeAddOp3(v, OP_Concat, 4, 3, 3); jmp4 = integrityCheckResultRow(v); sqlite3VdbeJumpHere(v, jmp2); + + /* The OP_IdxRowid opcode is an optimized version of OP_Column + ** that extracts the rowid off the end of the index record. + ** But it only works correctly if index record does not have + ** any extra bytes at the end. Verify that this is the case. */ + if( HasRowid(pTab) ){ + int jmp7; + sqlite3VdbeAddOp2(v, OP_IdxRowid, iIdxCur+j, 3); + jmp7 = sqlite3VdbeAddOp3(v, OP_Eq, 3, 0, r1+pIdx->nColumn-1); + VdbeCoverageNeverNull(v); + sqlite3VdbeLoadString(v, 3, + "rowid not at end-of-record for row "); + sqlite3VdbeAddOp3(v, OP_Concat, 7, 3, 3); + sqlite3VdbeLoadString(v, 4, " of index "); + sqlite3VdbeGoto(v, jmp5-1); + sqlite3VdbeJumpHere(v, jmp7); + } + + /* Any indexed columns with non-BINARY collations must still hold + ** the exact same text value as the table. */ + label6 = 0; + for(kk=0; kk<pIdx->nKeyCol; kk++){ + if( pIdx->azColl[kk]==sqlite3StrBINARY ) continue; + if( label6==0 ) label6 = sqlite3VdbeMakeLabel(pParse); + sqlite3VdbeAddOp3(v, OP_Column, iIdxCur+j, kk, 3); + sqlite3VdbeAddOp3(v, OP_Ne, 3, label6, r1+kk); VdbeCoverage(v); + } + if( label6 ){ + int jmp6 = sqlite3VdbeAddOp0(v, OP_Goto); + sqlite3VdbeResolveLabel(v, label6); + sqlite3VdbeLoadString(v, 3, "row "); + sqlite3VdbeAddOp3(v, OP_Concat, 7, 3, 3); + sqlite3VdbeLoadString(v, 4, " values differ from index "); + sqlite3VdbeGoto(v, jmp5-1); + sqlite3VdbeJumpHere(v, jmp6); + } + /* For UNIQUE indexes, verify that only one entry exists with the ** current key. The entry is unique if (1) any column is NULL ** or (2) the next entry has a different key */ if( IsUniqueIndex(pIdx) ){ int uniqOk = sqlite3VdbeMakeLabel(pParse); int jmp6; - int kk; for(kk=0; kk<pIdx->nKeyCol; kk++){ int iCol = pIdx->aiColumn[kk]; assert( iCol!=XN_ROWID && iCol<pTab->nCol ); @@ -132381,6 +139818,9 @@ SQLITE_PRIVATE void sqlite3Pragma( integrityCheckResultRow(v); sqlite3VdbeJumpHere(v, addr); } + if( pPk ){ + sqlite3ReleaseTempRange(pParse, r2, pPk->nKeyCol); + } } } } @@ -132531,6 +139971,11 @@ SQLITE_PRIVATE void sqlite3Pragma( aOp[1].p2 = iCookie; aOp[1].p3 = sqlite3Atoi(zRight); aOp[1].p5 = 1; + if( iCookie==BTREE_SCHEMA_VERSION && (db->flags & SQLITE_Defensive)!=0 ){ + /* Do not allow the use of PRAGMA schema_version=VALUE in defensive + ** mode. Change the OP_SetCookie opcode into a no-op. */ + aOp[1].opcode = OP_Noop; + } }else{ /* Read the specified cookie value */ static const VdbeOpList readCookie[] = { @@ -132687,7 +140132,7 @@ SQLITE_PRIVATE void sqlite3Pragma( Schema *pSchema; /* The current schema */ Table *pTab; /* A table in the schema */ Index *pIdx; /* An index of the table */ - LogEst szThreshold; /* Size threshold above which reanalysis is needd */ + LogEst szThreshold; /* Size threshold above which reanalysis needed */ char *zSubSql; /* SQL statement for the OP_SqlExec opcode */ u32 opMask; /* Mask of operations to perform */ @@ -133179,7 +140624,8 @@ static const sqlite3_module pragmaVtabModule = { 0, /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ - 0 /* xShadowName */ + 0, /* xShadowName */ + 0 /* xIntegrity */ }; /* @@ -133511,7 +140957,14 @@ SQLITE_PRIVATE int sqlite3InitOne(sqlite3 *db, int iDb, char **pzErrMsg, u32 mFl #else encoding = SQLITE_UTF8; #endif - sqlite3SetTextEncoding(db, encoding); + if( db->nVdbeActive>0 && encoding!=ENC(db) + && (db->mDbFlags & DBFLAG_Vacuum)==0 + ){ + rc = SQLITE_LOCKED; + goto initone_error_out; + }else{ + sqlite3SetTextEncoding(db, encoding); + } }else{ /* If opening an attached database, the encoding much match ENC(db) */ if( (meta[BTREE_TEXT_ENCODING-1] & 3)!=ENC(db) ){ @@ -133725,8 +141178,8 @@ static void schemaIsValid(Parse *pParse){ sqlite3BtreeGetMeta(pBt, BTREE_SCHEMA_VERSION, (u32 *)&cookie); assert( sqlite3SchemaMutexHeld(db, iDb, 0) ); if( cookie!=db->aDb[iDb].pSchema->schema_cookie ){ + if( DbHasProperty(db, iDb, DB_SchemaLoaded) ) pParse->rc = SQLITE_SCHEMA; sqlite3ResetOneSchema(db, iDb); - pParse->rc = SQLITE_SCHEMA; } /* Close the transaction, if one was opened. */ @@ -133779,15 +141232,15 @@ SQLITE_PRIVATE void sqlite3ParseObjectReset(Parse *pParse){ assert( db->pParse==pParse ); assert( pParse->nested==0 ); #ifndef SQLITE_OMIT_SHARED_CACHE - sqlite3DbFree(db, pParse->aTableLock); + if( pParse->aTableLock ) sqlite3DbNNFreeNN(db, pParse->aTableLock); #endif while( pParse->pCleanup ){ ParseCleanup *pCleanup = pParse->pCleanup; pParse->pCleanup = pCleanup->pNext; pCleanup->xCleanup(db, pCleanup->pPtr); - sqlite3DbFreeNN(db, pCleanup); + sqlite3DbNNFreeNN(db, pCleanup); } - sqlite3DbFree(db, pParse->aLabel); + if( pParse->aLabel ) sqlite3DbNNFreeNN(db, pParse->aLabel); if( pParse->pConstExpr ){ sqlite3ExprListDelete(db, pParse->pConstExpr); } @@ -133796,8 +141249,6 @@ SQLITE_PRIVATE void sqlite3ParseObjectReset(Parse *pParse){ db->lookaside.sz = db->lookaside.bDisable ? 0 : db->lookaside.szTrue; assert( pParse->db->pParse==pParse ); db->pParse = pParse->pOuterParse; - pParse->db = 0; - pParse->disableLookaside = 0; } /* @@ -133806,7 +141257,7 @@ SQLITE_PRIVATE void sqlite3ParseObjectReset(Parse *pParse){ ** immediately. ** ** Use this mechanism for uncommon cleanups. There is a higher setup -** cost for this mechansim (an extra malloc), so it should not be used +** cost for this mechanism (an extra malloc), so it should not be used ** for common cleanups that happen on most calls. But for less ** common cleanups, we save a single NULL-pointer comparison in ** sqlite3ParseObjectReset(), which reduces the total CPU cycle count. @@ -133898,9 +141349,18 @@ static int sqlite3Prepare( sParse.pOuterParse = db->pParse; db->pParse = &sParse; sParse.db = db; - sParse.pReprepare = pReprepare; + if( pReprepare ){ + sParse.pReprepare = pReprepare; + sParse.explain = sqlite3_stmt_isexplain((sqlite3_stmt*)pReprepare); + }else{ + assert( sParse.pReprepare==0 ); + } assert( ppStmt && *ppStmt==0 ); - if( db->mallocFailed ) sqlite3ErrorMsg(&sParse, "out of memory"); + if( db->mallocFailed ){ + sqlite3ErrorMsg(&sParse, "out of memory"); + db->errCode = rc = SQLITE_NOMEM; + goto end_prepare; + } assert( sqlite3_mutex_held(db->mutex) ); /* For a long-term use prepared statement avoid the use of @@ -133910,7 +141370,7 @@ static int sqlite3Prepare( sParse.disableLookaside++; DisableLookaside; } - sParse.disableVtab = (prepFlags & SQLITE_PREPARE_NO_VTAB)!=0; + sParse.prepFlags = prepFlags & 0xff; /* Check to verify that it is possible to get a read lock on all ** database schemas. The inability to get a read lock indicates that @@ -133951,7 +141411,9 @@ static int sqlite3Prepare( } } - sqlite3VtabUnlockList(db); +#ifndef SQLITE_OMIT_VIRTUALTABLE + if( db->pDisconnect ) sqlite3VtabUnlockList(db); +#endif if( nBytes>=0 && (nBytes==0 || zSql[nBytes-1]!=0) ){ char *zSqlCopy; @@ -134057,6 +141519,7 @@ static int sqlite3LockAndPrepare( assert( (rc&db->errMask)==rc ); db->busyHandler.nBusy = 0; sqlite3_mutex_leave(db->mutex); + assert( rc==SQLITE_OK || (*ppStmt)==0 ); return rc; } @@ -134291,7 +141754,7 @@ SQLITE_API int sqlite3_prepare16_v3( */ typedef struct DistinctCtx DistinctCtx; struct DistinctCtx { - u8 isTnct; /* True if the DISTINCT keyword is present */ + u8 isTnct; /* 0: Not distinct. 1: DISTICT 2: DISTINCT and ORDER BY */ u8 eTnctType; /* One of the WHERE_DISTINCT_* operators */ int tabTnct; /* Ephemeral table used for DISTINCT processing */ int addrTnct; /* Address of OP_OpenEphemeral opcode for tabTnct */ @@ -134335,6 +141798,10 @@ struct SortCtx { } aDefer[4]; #endif struct RowLoadInfo *pDeferredRowLoad; /* Deferred row loading info or NULL */ +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS + int addrPush; /* First instruction to push data into sorter */ + int addrPushEnd; /* Last instruction that pushes data into sorter */ +#endif }; #define SORTFLAG_UseSorter 0x01 /* Use SorterOpen instead of OpenEphemeral */ @@ -134346,6 +141813,7 @@ struct SortCtx { ** If bFree==0, Leave the first Select object unfreed */ static void clearSelect(sqlite3 *db, Select *p, int bFree){ + assert( db!=0 ); while( p ){ Select *pPrior = p->pPrior; sqlite3ExprListDelete(db, p->pEList); @@ -134365,7 +141833,7 @@ static void clearSelect(sqlite3 *db, Select *p, int bFree){ sqlite3WindowUnlinkFromSelect(p->pWin); } #endif - if( bFree ) sqlite3DbFreeNN(db, p); + if( bFree ) sqlite3DbNNFreeNN(db, p); p = pPrior; bFree = 1; } @@ -134449,6 +141917,9 @@ SQLITE_PRIVATE Select *sqlite3SelectNew( SQLITE_PRIVATE void sqlite3SelectDelete(sqlite3 *db, Select *p){ if( OK_IF_ALWAYS_TRUE(p) ) clearSelect(db, p, 1); } +SQLITE_PRIVATE void sqlite3SelectDeleteGeneric(sqlite3 *db, void *p){ + if( ALWAYS(p) ) clearSelect(db, (Select*)p, 1); +} /* ** Return a pointer to the right-most SELECT statement in a compound. @@ -134474,6 +141945,52 @@ static Select *findRightmost(Select *p){ ** ** If an illegal or unsupported join type is seen, then still return ** a join type, but put an error in the pParse structure. +** +** These are the valid join types: +** +** +** pA pB pC Return Value +** ------- ----- ----- ------------ +** CROSS - - JT_CROSS +** INNER - - JT_INNER +** LEFT - - JT_LEFT|JT_OUTER +** LEFT OUTER - JT_LEFT|JT_OUTER +** RIGHT - - JT_RIGHT|JT_OUTER +** RIGHT OUTER - JT_RIGHT|JT_OUTER +** FULL - - JT_LEFT|JT_RIGHT|JT_OUTER +** FULL OUTER - JT_LEFT|JT_RIGHT|JT_OUTER +** NATURAL INNER - JT_NATURAL|JT_INNER +** NATURAL LEFT - JT_NATURAL|JT_LEFT|JT_OUTER +** NATURAL LEFT OUTER JT_NATURAL|JT_LEFT|JT_OUTER +** NATURAL RIGHT - JT_NATURAL|JT_RIGHT|JT_OUTER +** NATURAL RIGHT OUTER JT_NATURAL|JT_RIGHT|JT_OUTER +** NATURAL FULL - JT_NATURAL|JT_LEFT|JT_RIGHT +** NATURAL FULL OUTER JT_NATRUAL|JT_LEFT|JT_RIGHT +** +** To preserve historical compatibly, SQLite also accepts a variety +** of other non-standard and in many cases nonsensical join types. +** This routine makes as much sense at it can from the nonsense join +** type and returns a result. Examples of accepted nonsense join types +** include but are not limited to: +** +** INNER CROSS JOIN -> same as JOIN +** NATURAL CROSS JOIN -> same as NATURAL JOIN +** OUTER LEFT JOIN -> same as LEFT JOIN +** LEFT NATURAL JOIN -> same as NATURAL LEFT JOIN +** LEFT RIGHT JOIN -> same as FULL JOIN +** RIGHT OUTER FULL JOIN -> same as FULL JOIN +** CROSS CROSS CROSS JOIN -> same as JOIN +** +** The only restrictions on the join type name are: +** +** * "INNER" cannot appear together with "OUTER", "LEFT", "RIGHT", +** or "FULL". +** +** * "CROSS" cannot appear together with "OUTER", "LEFT", "RIGHT, +** or "FULL". +** +** * If "OUTER" is present then there must also be one of +** "LEFT", "RIGHT", or "FULL" */ SQLITE_PRIVATE int sqlite3JoinType(Parse *pParse, Token *pA, Token *pB, Token *pC){ int jointype = 0; @@ -134486,13 +142003,13 @@ SQLITE_PRIVATE int sqlite3JoinType(Parse *pParse, Token *pA, Token *pB, Token *p u8 nChar; /* Length of the keyword in characters */ u8 code; /* Join type mask */ } aKeyword[] = { - /* natural */ { 0, 7, JT_NATURAL }, - /* left */ { 6, 4, JT_LEFT|JT_OUTER }, - /* outer */ { 10, 5, JT_OUTER }, - /* right */ { 14, 5, JT_RIGHT|JT_OUTER }, - /* full */ { 19, 4, JT_LEFT|JT_RIGHT|JT_OUTER }, - /* inner */ { 23, 5, JT_INNER }, - /* cross */ { 28, 5, JT_INNER|JT_CROSS }, + /* (0) natural */ { 0, 7, JT_NATURAL }, + /* (1) left */ { 6, 4, JT_LEFT|JT_OUTER }, + /* (2) outer */ { 10, 5, JT_OUTER }, + /* (3) right */ { 14, 5, JT_RIGHT|JT_OUTER }, + /* (4) full */ { 19, 4, JT_LEFT|JT_RIGHT|JT_OUTER }, + /* (5) inner */ { 23, 5, JT_INNER }, + /* (6) cross */ { 28, 5, JT_INNER|JT_CROSS }, }; int i, j; apAll[0] = pA; @@ -134515,18 +142032,15 @@ SQLITE_PRIVATE int sqlite3JoinType(Parse *pParse, Token *pA, Token *pB, Token *p } if( (jointype & (JT_INNER|JT_OUTER))==(JT_INNER|JT_OUTER) || - (jointype & JT_ERROR)!=0 + (jointype & JT_ERROR)!=0 || + (jointype & (JT_OUTER|JT_LEFT|JT_RIGHT))==JT_OUTER ){ - const char *zSp = " "; - assert( pB!=0 ); - if( pC==0 ){ zSp++; } - sqlite3ErrorMsg(pParse, "unknown or unsupported join type: " - "%T %T%s%T", pA, pB, zSp, pC); - jointype = JT_INNER; - }else if( (jointype & JT_OUTER)!=0 - && (jointype & (JT_LEFT|JT_RIGHT))!=JT_LEFT ){ - sqlite3ErrorMsg(pParse, - "RIGHT and FULL OUTER JOINs are not currently supported"); + const char *zSp1 = " "; + const char *zSp2 = " "; + if( pB==0 ){ zSp1++; } + if( pC==0 ){ zSp2++; } + sqlite3ErrorMsg(pParse, "unknown join type: " + "%T%s%T%s%T", pA, zSp1, pB, zSp2, pC); jointype = JT_INNER; } return jointype; @@ -134547,8 +142061,25 @@ SQLITE_PRIVATE int sqlite3ColumnIndex(Table *pTab, const char *zCol){ } /* -** Search the first N tables in pSrc, from left to right, looking for a -** table that has a column named zCol. +** Mark a subquery result column as having been used. +*/ +SQLITE_PRIVATE void sqlite3SrcItemColumnUsed(SrcItem *pItem, int iCol){ + assert( pItem!=0 ); + assert( (int)pItem->fg.isNestedFrom == IsNestedFrom(pItem->pSelect) ); + if( pItem->fg.isNestedFrom ){ + ExprList *pResults; + assert( pItem->pSelect!=0 ); + pResults = pItem->pSelect->pEList; + assert( pResults!=0 ); + assert( iCol>=0 && iCol<pResults->nExpr ); + pResults->a[iCol].fg.bUsed = 1; + } +} + +/* +** Search the tables iStart..iEnd (inclusive) in pSrc, looking for a +** table that has a column named zCol. The search is left-to-right. +** The first match found is returned. ** ** When found, set *piTab and *piCol to the table index and column index ** of the matching column and return TRUE. @@ -134557,22 +142088,27 @@ SQLITE_PRIVATE int sqlite3ColumnIndex(Table *pTab, const char *zCol){ */ static int tableAndColumnIndex( SrcList *pSrc, /* Array of tables to search */ - int N, /* Number of tables in pSrc->a[] to search */ + int iStart, /* First member of pSrc->a[] to check */ + int iEnd, /* Last member of pSrc->a[] to check */ const char *zCol, /* Name of the column we are looking for */ int *piTab, /* Write index of pSrc->a[] here */ int *piCol, /* Write index of pSrc->a[*piTab].pTab->aCol[] here */ - int bIgnoreHidden /* True to ignore hidden columns */ + int bIgnoreHidden /* Ignore hidden columns */ ){ int i; /* For looping over tables in pSrc */ int iCol; /* Index of column matching zCol */ + assert( iEnd<pSrc->nSrc ); + assert( iStart>=0 ); assert( (piTab==0)==(piCol==0) ); /* Both or neither are NULL */ - for(i=0; i<N; i++){ + + for(i=iStart; i<=iEnd; i++){ iCol = sqlite3ColumnIndex(pSrc->a[i].pTab, zCol); if( iCol>=0 && (bIgnoreHidden==0 || IsHiddenColumn(&pSrc->a[i].pTab->aCol[iCol])==0) ){ if( piTab ){ + sqlite3SrcItemColumnUsed(&pSrc->a[i], iCol); *piTab = i; *piCol = iCol; } @@ -134583,66 +142119,19 @@ static int tableAndColumnIndex( } /* -** This function is used to add terms implied by JOIN syntax to the -** WHERE clause expression of a SELECT statement. The new term, which -** is ANDed with the existing WHERE clause, is of the form: -** -** (tab1.col1 = tab2.col2) -** -** where tab1 is the iSrc'th table in SrcList pSrc and tab2 is the -** (iSrc+1)'th. Column col1 is column iColLeft of tab1, and col2 is -** column iColRight of tab2. -*/ -static void addWhereTerm( - Parse *pParse, /* Parsing context */ - SrcList *pSrc, /* List of tables in FROM clause */ - int iLeft, /* Index of first table to join in pSrc */ - int iColLeft, /* Index of column in first table */ - int iRight, /* Index of second table in pSrc */ - int iColRight, /* Index of column in second table */ - int isOuterJoin, /* True if this is an OUTER join */ - Expr **ppWhere /* IN/OUT: The WHERE clause to add to */ -){ - sqlite3 *db = pParse->db; - Expr *pE1; - Expr *pE2; - Expr *pEq; - - assert( iLeft<iRight ); - assert( pSrc->nSrc>iRight ); - assert( pSrc->a[iLeft].pTab ); - assert( pSrc->a[iRight].pTab ); - - pE1 = sqlite3CreateColumnExpr(db, pSrc, iLeft, iColLeft); - pE2 = sqlite3CreateColumnExpr(db, pSrc, iRight, iColRight); - - pEq = sqlite3PExpr(pParse, TK_EQ, pE1, pE2); - assert( pE2!=0 || pEq==0 ); /* Due to db->mallocFailed test - ** in sqlite3DbMallocRawNN() called from - ** sqlite3PExpr(). */ - if( pEq && isOuterJoin ){ - ExprSetProperty(pEq, EP_FromJoin); - assert( !ExprHasProperty(pEq, EP_TokenOnly|EP_Reduced) ); - ExprSetVVAProperty(pEq, EP_NoReduce); - pEq->w.iRightJoinTable = pE2->iTable; - } - *ppWhere = sqlite3ExprAnd(pParse, *ppWhere, pEq); -} - -/* -** Set the EP_FromJoin property on all terms of the given expression. -** And set the Expr.w.iRightJoinTable to iTable for every term in the +** Set the EP_OuterON property on all terms of the given expression. +** And set the Expr.w.iJoin to iTable for every term in the ** expression. ** -** The EP_FromJoin property is used on terms of an expression to tell -** the LEFT OUTER JOIN processing logic that this term is part of the +** The EP_OuterON property is used on terms of an expression to tell +** the OUTER JOIN processing logic that this term is part of the ** join restriction specified in the ON or USING clause and not a part ** of the more general WHERE clause. These terms are moved over to the ** WHERE clause during join processing but we need to remember that they ** originated in the ON or USING clause. ** -** The Expr.w.iRightJoinTable tells the WHERE clause processing that the -** expression depends on table w.iRightJoinTable even if that table is not +** The Expr.w.iJoin tells the WHERE clause processing that the +** expression depends on table w.iJoin even if that table is not ** explicitly mentioned in the expression. That information is needed ** for cases like this: ** @@ -134655,70 +142144,87 @@ static void addWhereTerm( ** after the t1 loop and rows with t1.x!=5 will never appear in ** the output, which is incorrect. */ -SQLITE_PRIVATE void sqlite3SetJoinExpr(Expr *p, int iTable){ +SQLITE_PRIVATE void sqlite3SetJoinExpr(Expr *p, int iTable, u32 joinFlag){ + assert( joinFlag==EP_OuterON || joinFlag==EP_InnerON ); while( p ){ - ExprSetProperty(p, EP_FromJoin); + ExprSetProperty(p, joinFlag); assert( !ExprHasProperty(p, EP_TokenOnly|EP_Reduced) ); ExprSetVVAProperty(p, EP_NoReduce); - p->w.iRightJoinTable = iTable; + p->w.iJoin = iTable; if( p->op==TK_FUNCTION ){ assert( ExprUseXList(p) ); if( p->x.pList ){ int i; for(i=0; i<p->x.pList->nExpr; i++){ - sqlite3SetJoinExpr(p->x.pList->a[i].pExpr, iTable); + sqlite3SetJoinExpr(p->x.pList->a[i].pExpr, iTable, joinFlag); } } } - sqlite3SetJoinExpr(p->pLeft, iTable); + sqlite3SetJoinExpr(p->pLeft, iTable, joinFlag); p = p->pRight; } } -/* Undo the work of sqlite3SetJoinExpr(). In the expression p, convert every -** term that is marked with EP_FromJoin and w.iRightJoinTable==iTable into -** an ordinary term that omits the EP_FromJoin mark. +/* Undo the work of sqlite3SetJoinExpr(). This is used when a LEFT JOIN +** is simplified into an ordinary JOIN, and when an ON expression is +** "pushed down" into the WHERE clause of a subquery. +** +** Convert every term that is marked with EP_OuterON and w.iJoin==iTable into +** an ordinary term that omits the EP_OuterON mark. Or if iTable<0, then +** just clear every EP_OuterON and EP_InnerON mark from the expression tree. ** -** This happens when a LEFT JOIN is simplified into an ordinary JOIN. +** If nullable is true, that means that Expr p might evaluate to NULL even +** if it is a reference to a NOT NULL column. This can happen, for example, +** if the table that p references is on the left side of a RIGHT JOIN. +** If nullable is true, then take care to not remove the EP_CanBeNull bit. +** See forum thread https://sqlite.org/forum/forumpost/b40696f50145d21c */ -static void unsetJoinExpr(Expr *p, int iTable){ +static void unsetJoinExpr(Expr *p, int iTable, int nullable){ while( p ){ - if( ExprHasProperty(p, EP_FromJoin) - && (iTable<0 || p->w.iRightJoinTable==iTable) ){ - ExprClearProperty(p, EP_FromJoin); + if( iTable<0 || (ExprHasProperty(p, EP_OuterON) && p->w.iJoin==iTable) ){ + ExprClearProperty(p, EP_OuterON|EP_InnerON); + if( iTable>=0 ) ExprSetProperty(p, EP_InnerON); } - if( p->op==TK_COLUMN && p->iTable==iTable ){ + if( p->op==TK_COLUMN && p->iTable==iTable && !nullable ){ ExprClearProperty(p, EP_CanBeNull); } if( p->op==TK_FUNCTION ){ assert( ExprUseXList(p) ); + assert( p->pLeft==0 ); if( p->x.pList ){ int i; for(i=0; i<p->x.pList->nExpr; i++){ - unsetJoinExpr(p->x.pList->a[i].pExpr, iTable); + unsetJoinExpr(p->x.pList->a[i].pExpr, iTable, nullable); } } } - unsetJoinExpr(p->pLeft, iTable); + unsetJoinExpr(p->pLeft, iTable, nullable); p = p->pRight; } } /* ** This routine processes the join information for a SELECT statement. -** ON and USING clauses are converted into extra terms of the WHERE clause. -** NATURAL joins also create extra WHERE clause terms. +** +** * A NATURAL join is converted into a USING join. After that, we +** do not need to be concerned with NATURAL joins and we only have +** think about USING joins. +** +** * ON and USING clauses result in extra terms being added to the +** WHERE clause to enforce the specified constraints. The extra +** WHERE clause terms will be tagged with EP_OuterON or +** EP_InnerON so that we know that they originated in ON/USING. ** ** The terms of a FROM clause are contained in the Select.pSrc structure. ** The left most table is the first entry in Select.pSrc. The right-most ** table is the last entry. The join operator is held in the entry to -** the left. Thus entry 0 contains the join operator for the join between +** the right. Thus entry 1 contains the join operator for the join between ** entries 0 and 1. Any ON or USING clauses associated with the join are -** also attached to the left entry. +** also attached to the right entry. ** ** This routine returns the number of errors encountered. */ -static int sqliteProcessJoin(Parse *pParse, Select *p){ +static int sqlite3ProcessJoin(Parse *pParse, Select *p){ SrcList *pSrc; /* All tables in the FROM clause */ int i, j; /* Loop counters */ SrcItem *pLeft; /* Left table being joined */ @@ -134729,49 +142235,41 @@ static int sqliteProcessJoin(Parse *pParse, Select *p){ pRight = &pLeft[1]; for(i=0; i<pSrc->nSrc-1; i++, pRight++, pLeft++){ Table *pRightTab = pRight->pTab; - int isOuter; + u32 joinType; if( NEVER(pLeft->pTab==0 || pRightTab==0) ) continue; - isOuter = (pRight->fg.jointype & JT_OUTER)!=0; + joinType = (pRight->fg.jointype & JT_OUTER)!=0 ? EP_OuterON : EP_InnerON; - /* When the NATURAL keyword is present, add WHERE clause terms for - ** every column that the two tables have in common. + /* If this is a NATURAL join, synthesize an appropriate USING clause + ** to specify which columns should be joined. */ if( pRight->fg.jointype & JT_NATURAL ){ - if( pRight->pOn || pRight->pUsing ){ + IdList *pUsing = 0; + if( pRight->fg.isUsing || pRight->u3.pOn ){ sqlite3ErrorMsg(pParse, "a NATURAL join may not have " "an ON or USING clause", 0); return 1; } for(j=0; j<pRightTab->nCol; j++){ char *zName; /* Name of column in the right table */ - int iLeft; /* Matching left table */ - int iLeftCol; /* Matching column in the left table */ if( IsHiddenColumn(&pRightTab->aCol[j]) ) continue; zName = pRightTab->aCol[j].zCnName; - if( tableAndColumnIndex(pSrc, i+1, zName, &iLeft, &iLeftCol, 1) ){ - addWhereTerm(pParse, pSrc, iLeft, iLeftCol, i+1, j, - isOuter, &p->pWhere); + if( tableAndColumnIndex(pSrc, 0, i, zName, 0, 0, 1) ){ + pUsing = sqlite3IdListAppend(pParse, pUsing, 0); + if( pUsing ){ + assert( pUsing->nId>0 ); + assert( pUsing->a[pUsing->nId-1].zName==0 ); + pUsing->a[pUsing->nId-1].zName = sqlite3DbStrDup(pParse->db, zName); + } } } - } - - /* Disallow both ON and USING clauses in the same join - */ - if( pRight->pOn && pRight->pUsing ){ - sqlite3ErrorMsg(pParse, "cannot have both ON and USING " - "clauses in the same join"); - return 1; - } - - /* Add the ON clause to the end of the WHERE clause, connected by - ** an AND operator. - */ - if( pRight->pOn ){ - if( isOuter ) sqlite3SetJoinExpr(pRight->pOn, pRight->iCursor); - p->pWhere = sqlite3ExprAnd(pParse, p->pWhere, pRight->pOn); - pRight->pOn = 0; + if( pUsing ){ + pRight->fg.isUsing = 1; + pRight->fg.isSynthUsing = 1; + pRight->u3.pUsing = pUsing; + } + if( pParse->nErr ) return 1; } /* Create extra terms on the WHERE clause for each column named @@ -134781,27 +142279,88 @@ static int sqliteProcessJoin(Parse *pParse, Select *p){ ** Report an error if any column mentioned in the USING clause is ** not contained in both tables to be joined. */ - if( pRight->pUsing ){ - IdList *pList = pRight->pUsing; + if( pRight->fg.isUsing ){ + IdList *pList = pRight->u3.pUsing; + sqlite3 *db = pParse->db; + assert( pList!=0 ); for(j=0; j<pList->nId; j++){ char *zName; /* Name of the term in the USING clause */ int iLeft; /* Table on the left with matching column name */ int iLeftCol; /* Column number of matching column on the left */ int iRightCol; /* Column number of matching column on the right */ + Expr *pE1; /* Reference to the column on the LEFT of the join */ + Expr *pE2; /* Reference to the column on the RIGHT of the join */ + Expr *pEq; /* Equality constraint. pE1 == pE2 */ zName = pList->a[j].zName; iRightCol = sqlite3ColumnIndex(pRightTab, zName); if( iRightCol<0 - || !tableAndColumnIndex(pSrc, i+1, zName, &iLeft, &iLeftCol, 0) + || tableAndColumnIndex(pSrc, 0, i, zName, &iLeft, &iLeftCol, + pRight->fg.isSynthUsing)==0 ){ sqlite3ErrorMsg(pParse, "cannot join using column %s - column " "not present in both tables", zName); return 1; } - addWhereTerm(pParse, pSrc, iLeft, iLeftCol, i+1, iRightCol, - isOuter, &p->pWhere); + pE1 = sqlite3CreateColumnExpr(db, pSrc, iLeft, iLeftCol); + sqlite3SrcItemColumnUsed(&pSrc->a[iLeft], iLeftCol); + if( (pSrc->a[0].fg.jointype & JT_LTORJ)!=0 ){ + /* This branch runs if the query contains one or more RIGHT or FULL + ** JOINs. If only a single table on the left side of this join + ** contains the zName column, then this branch is a no-op. + ** But if there are two or more tables on the left side + ** of the join, construct a coalesce() function that gathers all + ** such tables. Raise an error if more than one of those references + ** to zName is not also within a prior USING clause. + ** + ** We really ought to raise an error if there are two or more + ** non-USING references to zName on the left of an INNER or LEFT + ** JOIN. But older versions of SQLite do not do that, so we avoid + ** adding a new error so as to not break legacy applications. + */ + ExprList *pFuncArgs = 0; /* Arguments to the coalesce() */ + static const Token tkCoalesce = { "coalesce", 8 }; + while( tableAndColumnIndex(pSrc, iLeft+1, i, zName, &iLeft, &iLeftCol, + pRight->fg.isSynthUsing)!=0 ){ + if( pSrc->a[iLeft].fg.isUsing==0 + || sqlite3IdListIndex(pSrc->a[iLeft].u3.pUsing, zName)<0 + ){ + sqlite3ErrorMsg(pParse, "ambiguous reference to %s in USING()", + zName); + break; + } + pFuncArgs = sqlite3ExprListAppend(pParse, pFuncArgs, pE1); + pE1 = sqlite3CreateColumnExpr(db, pSrc, iLeft, iLeftCol); + sqlite3SrcItemColumnUsed(&pSrc->a[iLeft], iLeftCol); + } + if( pFuncArgs ){ + pFuncArgs = sqlite3ExprListAppend(pParse, pFuncArgs, pE1); + pE1 = sqlite3ExprFunction(pParse, pFuncArgs, &tkCoalesce, 0); + } + } + pE2 = sqlite3CreateColumnExpr(db, pSrc, i+1, iRightCol); + sqlite3SrcItemColumnUsed(pRight, iRightCol); + pEq = sqlite3PExpr(pParse, TK_EQ, pE1, pE2); + assert( pE2!=0 || pEq==0 ); + if( pEq ){ + ExprSetProperty(pEq, joinType); + assert( !ExprHasProperty(pEq, EP_TokenOnly|EP_Reduced) ); + ExprSetVVAProperty(pEq, EP_NoReduce); + pEq->w.iJoin = pE2->iTable; + } + p->pWhere = sqlite3ExprAnd(pParse, p->pWhere, pEq); } } + + /* Add the ON clause to the end of the WHERE clause, connected by + ** an AND operator. + */ + else if( pRight->u3.pOn ){ + sqlite3SetJoinExpr(pRight->u3.pOn, pRight->iCursor, joinType); + p->pWhere = sqlite3ExprAnd(pParse, p->pWhere, pRight->u3.pOn); + pRight->u3.pOn = 0; + pRight->fg.isOn = 1; + } } return 0; } @@ -134895,14 +142454,18 @@ static void pushOntoSorter( ** (2) All output columns are included in the sort record. In that ** case regData==regOrigData. ** (3) Some output columns are omitted from the sort record due to - ** the SQLITE_ENABLE_SORTER_REFERENCE optimization, or due to the + ** the SQLITE_ENABLE_SORTER_REFERENCES optimization, or due to the ** SQLITE_ECEL_OMITREF optimization, or due to the - ** SortCtx.pDeferredRowLoad optimiation. In any of these cases + ** SortCtx.pDeferredRowLoad optimization. In any of these cases ** regOrigData is 0 to prevent this routine from trying to copy ** values that might not yet exist. */ assert( nData==1 || regData==regOrigData || regOrigData==0 ); +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS + pSort->addrPush = sqlite3VdbeCurrentAddr(v); +#endif + if( nPrefixReg ){ assert( nPrefixReg==nExpr+bSeq ); regBase = regData - nPrefixReg; @@ -134949,7 +142512,7 @@ static void pushOntoSorter( testcase( pKI->nAllField > pKI->nKeyField+2 ); pOp->p4.pKeyInfo = sqlite3KeyInfoFromExprList(pParse,pSort->pOrderBy,nOBSat, pKI->nAllField-pKI->nKeyField-1); - pOp = 0; /* Ensure pOp not used after sqltie3VdbeAddOp3() */ + pOp = 0; /* Ensure pOp not used after sqlite3VdbeAddOp3() */ addrJmp = sqlite3VdbeCurrentAddr(v); sqlite3VdbeAddOp3(v, OP_Jump, addrJmp+1, 0, addrJmp+1); VdbeCoverage(v); pSort->labelBkOut = sqlite3VdbeMakeLabel(pParse); @@ -135003,6 +142566,9 @@ static void pushOntoSorter( sqlite3VdbeChangeP2(v, iSkip, pSort->labelOBLopt ? pSort->labelOBLopt : sqlite3VdbeCurrentAddr(v)); } +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS + pSort->addrPushEnd = sqlite3VdbeCurrentAddr(v)-1; +#endif } /* @@ -135040,7 +142606,7 @@ static void codeOffset( ** The returned value in this case is a copy of parameter iTab. ** ** WHERE_DISTINCT_ORDERED: -** In this case rows are being delivered sorted order. The ephermal +** In this case rows are being delivered sorted order. The ephemeral ** table is not required. Instead, the current set of values ** is compared against previous row. If they match, the new row ** is not distinct and control jumps to VM address addrRepeat. Otherwise, @@ -135190,7 +142756,7 @@ static void fixDistinctOpenEph( ** retrieved directly from table t1. If the values are very large, this ** can be more efficient than storing them directly in the sorter records. ** -** The ExprList_item.bSorterRef flag is set for each expression in pEList +** The ExprList_item.fg.bSorterRef flag is set for each expression in pEList ** for which the sorter-reference optimization should be enabled. ** Additionally, the pSort->aDefer[] array is populated with entries ** for all cursors required to evaluate all selected expressions. Finally. @@ -135250,7 +142816,7 @@ static void selectExprDefer( nDefer++; } } - pItem->bSorterRef = 1; + pItem->fg.bSorterRef = 1; } } } @@ -135381,7 +142947,7 @@ static void selectInnerLoop( for(i=0; i<pEList->nExpr; i++){ if( pEList->a[i].u.x.iOrderByCol>0 #ifdef SQLITE_ENABLE_SORTER_REFERENCES - || pEList->a[i].bSorterRef + || pEList->a[i].fg.bSorterRef #endif ){ nResultCol--; @@ -135469,6 +143035,16 @@ static void selectInnerLoop( testcase( eDest==SRT_Fifo ); testcase( eDest==SRT_DistFifo ); sqlite3VdbeAddOp3(v, OP_MakeRecord, regResult, nResultCol, r1+nPrefixReg); +#if !defined(SQLITE_ENABLE_NULL_TRIM) && defined(SQLITE_DEBUG) + /* A destination of SRT_Table and a non-zero iSDParm2 parameter means + ** that this is an "UPDATE ... FROM" on a virtual table or view. In this + ** case set the p5 parameter of the OP_MakeRecord to OPFLAG_NOCHNG_MAGIC. + ** This does not affect operation in any way - it just allows MakeRecord + ** to process OPFLAG_NOCHANGE values without an assert() failing. */ + if( eDest==SRT_Table && pDest->iSDParm2 ){ + sqlite3VdbeChangeP5(v, OPFLAG_NOCHNG_MAGIC); + } +#endif #ifndef SQLITE_OMIT_CTE if( eDest==SRT_DistFifo ){ /* If the destination is DistFifo, then cursor (iParm+1) is open @@ -135684,9 +143260,10 @@ SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoAlloc(sqlite3 *db, int N, int X){ */ SQLITE_PRIVATE void sqlite3KeyInfoUnref(KeyInfo *p){ if( p ){ + assert( p->db!=0 ); assert( p->nRef>0 ); p->nRef--; - if( p->nRef==0 ) sqlite3DbFreeNN(p->db, p); + if( p->nRef==0 ) sqlite3DbNNFreeNN(p->db, p); } } @@ -135743,7 +143320,7 @@ SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoFromExprList( assert( sqlite3KeyInfoIsWriteable(pInfo) ); for(i=iStart, pItem=pList->a+iStart; i<nExpr; i++, pItem++){ pInfo->aColl[i-iStart] = sqlite3ExprNNCollSeq(pParse, pItem->pExpr); - pInfo->aSortFlags[i-iStart] = pItem->sortFlags; + pInfo->aSortFlags[i-iStart] = pItem->fg.sortFlags; } } return pInfo; @@ -135825,6 +143402,16 @@ static void generateSortTail( int bSeq; /* True if sorter record includes seq. no. */ int nRefKey = 0; struct ExprList_item *aOutEx = p->pEList->a; +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS + int addrExplain; /* Address of OP_Explain instruction */ +#endif + + ExplainQueryPlan2(addrExplain, (pParse, 0, + "USE TEMP B-TREE FOR %sORDER BY", pSort->nOBSat>0?"RIGHT PART OF ":"") + ); + sqlite3VdbeScanStatusRange(v, addrExplain,pSort->addrPush,pSort->addrPushEnd); + sqlite3VdbeScanStatusCounters(v, addrExplain, addrExplain, pSort->addrPush); + assert( addrBreak<0 ); if( pSort->labelBkOut ){ @@ -135871,7 +143458,7 @@ static void generateSortTail( if( addrOnce ) sqlite3VdbeJumpHere(v, addrOnce); addr = 1 + sqlite3VdbeAddOp2(v, OP_SorterSort, iTab, addrBreak); VdbeCoverage(v); - codeOffset(v, p->iOffset, addrContinue); + assert( p->iLimit==0 && p->iOffset==0 ); sqlite3VdbeAddOp3(v, OP_SorterData, iTab, regSortOut, iSortTab); bSeq = 0; }else{ @@ -135879,10 +143466,13 @@ static void generateSortTail( codeOffset(v, p->iOffset, addrContinue); iSortTab = iTab; bSeq = 1; + if( p->iOffset>0 ){ + sqlite3VdbeAddOp2(v, OP_AddImm, p->iLimit, -1); + } } for(i=0, iCol=nKey+bSeq-1; i<nColumn; i++){ #ifdef SQLITE_ENABLE_SORTER_REFERENCES - if( aOutEx[i].bSorterRef ) continue; + if( aOutEx[i].fg.bSorterRef ) continue; #endif if( aOutEx[i].u.x.iOrderByCol==0 ) iCol++; } @@ -135919,7 +143509,7 @@ static void generateSortTail( #endif for(i=nColumn-1; i>=0; i--){ #ifdef SQLITE_ENABLE_SORTER_REFERENCES - if( aOutEx[i].bSorterRef ){ + if( aOutEx[i].fg.bSorterRef ){ sqlite3ExprCode(pParse, aOutEx[i].pExpr, regRow+i); }else #endif @@ -135934,6 +143524,7 @@ static void generateSortTail( VdbeComment((v, "%s", aOutEx[i].zEName)); } } + sqlite3VdbeScanStatusRange(v, addrExplain, addrExplain, -1); switch( eDest ){ case SRT_Table: case SRT_EphemTab: { @@ -135995,6 +143586,7 @@ static void generateSortTail( }else{ sqlite3VdbeAddOp2(v, OP_Next, iTab, addr); VdbeCoverage(v); } + sqlite3VdbeScanStatusRange(v, addrExplain, sqlite3VdbeCurrentAddr(v)-1, -1); if( pSort->regReturn ) sqlite3VdbeAddOp1(v, OP_Return, pSort->regReturn); sqlite3VdbeResolveLabel(v, addrBreak); } @@ -136003,9 +143595,6 @@ static void generateSortTail( ** Return a pointer to a string containing the 'declaration type' of the ** expression pExpr. The string may be treated as static by the caller. ** -** Also try to estimate the size of the returned value and return that -** result in *pEstWidth. -** ** The declaration type is the exact datatype definition extracted from the ** original CREATE TABLE statement if the expression is a column. The ** declaration type for a ROWID field is INTEGER. Exactly when an expression @@ -136259,17 +143848,10 @@ SQLITE_PRIVATE void sqlite3GenerateColumnNames( int fullName; /* TABLE.COLUMN if no AS clause and is a direct table ref */ int srcName; /* COLUMN or TABLE.COLUMN if no AS clause and is direct */ -#ifndef SQLITE_OMIT_EXPLAIN - /* If this is an EXPLAIN, skip this step */ - if( pParse->explain ){ - return; - } -#endif - if( pParse->colNamesSet ) return; /* Column names are determined by the left-most term of a compound select */ while( pSelect->pPrior ) pSelect = pSelect->pPrior; - SELECTTRACE(1,pParse,pSelect,("generating column names\n")); + TREETRACE(0x80,pParse,pSelect,("generating column names\n")); pTabList = pSelect->pSrc; pEList = pSelect->pEList; assert( v!=0 ); @@ -136285,7 +143867,7 @@ SQLITE_PRIVATE void sqlite3GenerateColumnNames( assert( p->op!=TK_AGG_COLUMN ); /* Agg processing has not run yet */ assert( p->op!=TK_COLUMN || (ExprUseYTab(p) && p->y.pTab!=0) ); /* Covering idx not yet coded */ - if( pEList->a[i].zEName && pEList->a[i].eEName==ENAME_NAME ){ + if( pEList->a[i].zEName && pEList->a[i].fg.eEName==ENAME_NAME ){ /* An AS clause always takes first priority */ char *zName = pEList->a[i].zEName; sqlite3VdbeSetColName(v, i, COLNAME_NAME, zName, SQLITE_TRANSIENT); @@ -136369,23 +143951,26 @@ SQLITE_PRIVATE int sqlite3ColumnsFromExprList( *pnCol = nCol; *paCol = aCol; - for(i=0, pCol=aCol; i<nCol && !db->mallocFailed; i++, pCol++){ + for(i=0, pCol=aCol; i<nCol && !pParse->nErr; i++, pCol++){ + struct ExprList_item *pX = &pEList->a[i]; + struct ExprList_item *pCollide; /* Get an appropriate name for the column */ - if( (zName = pEList->a[i].zEName)!=0 && pEList->a[i].eEName==ENAME_NAME ){ + if( (zName = pX->zEName)!=0 && pX->fg.eEName==ENAME_NAME ){ /* If the column contains an "AS <name>" phrase, use <name> as the name */ }else{ - Expr *pColExpr = sqlite3ExprSkipCollateAndLikely(pEList->a[i].pExpr); + Expr *pColExpr = sqlite3ExprSkipCollateAndLikely(pX->pExpr); while( ALWAYS(pColExpr!=0) && pColExpr->op==TK_DOT ){ pColExpr = pColExpr->pRight; assert( pColExpr!=0 ); } if( pColExpr->op==TK_COLUMN && ALWAYS( ExprUseYTab(pColExpr) ) - && (pTab = pColExpr->y.pTab)!=0 + && ALWAYS( pColExpr->y.pTab!=0 ) ){ /* For columns use the column name name */ int iCol = pColExpr->iColumn; + pTab = pColExpr->y.pTab; if( iCol<0 ) iCol = pTab->iPKey; zName = iCol>=0 ? pTab->aCol[iCol].zCnName : "rowid"; }else if( pColExpr->op==TK_ID ){ @@ -136393,7 +143978,7 @@ SQLITE_PRIVATE int sqlite3ColumnsFromExprList( zName = pColExpr->u.zToken; }else{ /* Use the original text of the column expression as its name */ - zName = pEList->a[i].zEName; + assert( zName==pX->zEName ); /* pointer comparison intended */ } } if( zName && !sqlite3IsTrueOrFalse(zName) ){ @@ -136406,88 +143991,131 @@ SQLITE_PRIVATE int sqlite3ColumnsFromExprList( ** append an integer to the name so that it becomes unique. */ cnt = 0; - while( zName && sqlite3HashFind(&ht, zName)!=0 ){ + while( zName && (pCollide = sqlite3HashFind(&ht, zName))!=0 ){ + if( pCollide->fg.bUsingTerm ){ + pCol->colFlags |= COLFLAG_NOEXPAND; + } nName = sqlite3Strlen30(zName); if( nName>0 ){ for(j=nName-1; j>0 && sqlite3Isdigit(zName[j]); j--){} if( zName[j]==':' ) nName = j; } zName = sqlite3MPrintf(db, "%.*z:%u", nName, zName, ++cnt); - if( cnt>3 ) sqlite3_randomness(sizeof(cnt), &cnt); + sqlite3ProgressCheck(pParse); + if( cnt>3 ){ + sqlite3_randomness(sizeof(cnt), &cnt); + } } pCol->zCnName = zName; pCol->hName = sqlite3StrIHash(zName); + if( pX->fg.bNoExpand ){ + pCol->colFlags |= COLFLAG_NOEXPAND; + } sqlite3ColumnPropertiesFromName(0, pCol); - if( zName && sqlite3HashInsert(&ht, zName, pCol)==pCol ){ + if( zName && sqlite3HashInsert(&ht, zName, pX)==pX ){ sqlite3OomFault(db); } } sqlite3HashClear(&ht); - if( db->mallocFailed ){ + if( pParse->nErr ){ for(j=0; j<i; j++){ sqlite3DbFree(db, aCol[j].zCnName); } sqlite3DbFree(db, aCol); *paCol = 0; *pnCol = 0; - return SQLITE_NOMEM_BKPT; + return pParse->rc; } return SQLITE_OK; } /* -** Add type and collation information to a column list based on -** a SELECT statement. -** -** The column list presumably came from selectColumnNamesFromExprList(). -** The column list has only names, not types or collations. This -** routine goes through and adds the types and collations. +** pTab is a transient Table object that represents a subquery of some +** kind (maybe a parenthesized subquery in the FROM clause of a larger +** query, or a VIEW, or a CTE). This routine computes type information +** for that Table object based on the Select object that implements the +** subquery. For the purposes of this routine, "type information" means: ** -** This routine requires that all identifiers in the SELECT -** statement be resolved. +** * The datatype name, as it might appear in a CREATE TABLE statement +** * Which collating sequence to use for the column +** * The affinity of the column */ -SQLITE_PRIVATE void sqlite3SelectAddColumnTypeAndCollation( - Parse *pParse, /* Parsing contexts */ - Table *pTab, /* Add column type information to this table */ - Select *pSelect, /* SELECT used to determine types and collations */ - char aff /* Default affinity for columns */ +SQLITE_PRIVATE void sqlite3SubqueryColumnTypes( + Parse *pParse, /* Parsing contexts */ + Table *pTab, /* Add column type information to this table */ + Select *pSelect, /* SELECT used to determine types and collations */ + char aff /* Default affinity. */ ){ sqlite3 *db = pParse->db; - NameContext sNC; Column *pCol; CollSeq *pColl; - int i; + int i,j; Expr *p; struct ExprList_item *a; + NameContext sNC; assert( pSelect!=0 ); - assert( (pSelect->selFlags & SF_Resolved)!=0 ); - assert( pTab->nCol==pSelect->pEList->nExpr || db->mallocFailed ); - if( db->mallocFailed ) return; + testcase( (pSelect->selFlags & SF_Resolved)==0 ); + assert( (pSelect->selFlags & SF_Resolved)!=0 || IN_RENAME_OBJECT ); + assert( pTab->nCol==pSelect->pEList->nExpr || pParse->nErr>0 ); + assert( aff==SQLITE_AFF_NONE || aff==SQLITE_AFF_BLOB ); + if( db->mallocFailed || IN_RENAME_OBJECT ) return; + while( pSelect->pPrior ) pSelect = pSelect->pPrior; + a = pSelect->pEList->a; memset(&sNC, 0, sizeof(sNC)); sNC.pSrcList = pSelect->pSrc; - a = pSelect->pEList->a; for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){ const char *zType; - i64 n, m; + i64 n; pTab->tabFlags |= (pCol->colFlags & COLFLAG_NOINSERT); p = a[i].pExpr; - zType = columnType(&sNC, p, 0, 0, 0); /* pCol->szEst = ... // Column size est for SELECT tables never used */ pCol->affinity = sqlite3ExprAffinity(p); + if( pCol->affinity<=SQLITE_AFF_NONE ){ + pCol->affinity = aff; + } + if( pCol->affinity>=SQLITE_AFF_TEXT && pSelect->pNext ){ + int m = 0; + Select *pS2; + for(m=0, pS2=pSelect->pNext; pS2; pS2=pS2->pNext){ + m |= sqlite3ExprDataType(pS2->pEList->a[i].pExpr); + } + if( pCol->affinity==SQLITE_AFF_TEXT && (m&0x01)!=0 ){ + pCol->affinity = SQLITE_AFF_BLOB; + }else + if( pCol->affinity>=SQLITE_AFF_NUMERIC && (m&0x02)!=0 ){ + pCol->affinity = SQLITE_AFF_BLOB; + } + if( pCol->affinity>=SQLITE_AFF_NUMERIC && p->op==TK_CAST ){ + pCol->affinity = SQLITE_AFF_FLEXNUM; + } + } + zType = columnType(&sNC, p, 0, 0, 0); + if( zType==0 || pCol->affinity!=sqlite3AffinityType(zType, 0) ){ + if( pCol->affinity==SQLITE_AFF_NUMERIC + || pCol->affinity==SQLITE_AFF_FLEXNUM + ){ + zType = "NUM"; + }else{ + zType = 0; + for(j=1; j<SQLITE_N_STDTYPE; j++){ + if( sqlite3StdTypeAffinity[j]==pCol->affinity ){ + zType = sqlite3StdType[j]; + break; + } + } + } + } if( zType ){ - m = sqlite3Strlen30(zType); + i64 m = sqlite3Strlen30(zType); n = sqlite3Strlen30(pCol->zCnName); pCol->zCnName = sqlite3DbReallocOrFree(db, pCol->zCnName, n+m+2); + pCol->colFlags &= ~(COLFLAG_HASTYPE|COLFLAG_HASCOLL); if( pCol->zCnName ){ memcpy(&pCol->zCnName[n+1], zType, m+1); pCol->colFlags |= COLFLAG_HASTYPE; - }else{ - testcase( pCol->colFlags & COLFLAG_HASTYPE ); - pCol->colFlags &= ~(COLFLAG_HASTYPE|COLFLAG_HASCOLL); } } - if( pCol->affinity<=SQLITE_AFF_NONE ) pCol->affinity = aff; pColl = sqlite3ExprCollSeq(pParse, p); if( pColl ){ assert( pTab->pIndex==0 ); @@ -136521,7 +144149,7 @@ SQLITE_PRIVATE Table *sqlite3ResultSetOfSelect(Parse *pParse, Select *pSelect, c pTab->zName = 0; pTab->nRowLogEst = 200; assert( 200==sqlite3LogEst(1048576) ); sqlite3ColumnsFromExprList(pParse, pSelect->pEList, &pTab->nCol, &pTab->aCol); - sqlite3SelectAddColumnTypeAndCollation(pParse, pTab, pSelect, aff); + sqlite3SubqueryColumnTypes(pParse, pTab, pSelect, aff); pTab->iPKey = -1; if( db->mallocFailed ){ sqlite3DeleteTable(db, pTab); @@ -136675,7 +144303,7 @@ static KeyInfo *multiSelectOrderByKeyInfo(Parse *pParse, Select *p, int nExtra){ } assert( sqlite3KeyInfoIsWriteable(pRet) ); pRet->aColl[i] = pColl; - pRet->aSortFlags[i] = pOrderBy->a[i].sortFlags; + pRet->aSortFlags[i] = pOrderBy->a[i].fg.sortFlags; } } @@ -136736,7 +144364,7 @@ static void generateWithRecursiveQuery( int iQueue; /* The Queue table */ int iDistinct = 0; /* To ensure unique results if UNION */ int eDest = SRT_Fifo; /* How to write to Queue */ - SelectDest destQueue; /* SelectDest targetting the Queue table */ + SelectDest destQueue; /* SelectDest targeting the Queue table */ int i; /* Loop counter */ int rc; /* Result code */ ExprList *pOrderBy; /* The ORDER BY clause */ @@ -136893,7 +144521,7 @@ static int multiSelectOrderBy( ** The "LIMIT of exactly 1" case of condition (1) comes about when a VALUES ** clause occurs within scalar expression (ex: "SELECT (VALUES(1),(2),(3))"). ** The sqlite3CodeSubselect will have added the LIMIT 1 clause in tht case. -** Since the limit is exactly 1, we only need to evalutes the left-most VALUES. +** Since the limit is exactly 1, we only need to evaluate the left-most VALUES. */ static int multiSelectValues( Parse *pParse, /* Parsing context */ @@ -137046,7 +144674,7 @@ static int multiSelect( pPrior->iLimit = p->iLimit; pPrior->iOffset = p->iOffset; pPrior->pLimit = p->pLimit; - SELECTTRACE(1, pParse, p, ("multiSelect UNION ALL left...\n")); + TREETRACE(0x200, pParse, p, ("multiSelect UNION ALL left...\n")); rc = sqlite3Select(pParse, pPrior, &dest); pPrior->pLimit = 0; if( rc ){ @@ -137064,7 +144692,7 @@ static int multiSelect( } } ExplainQueryPlan((pParse, 1, "UNION ALL")); - SELECTTRACE(1, pParse, p, ("multiSelect UNION ALL right...\n")); + TREETRACE(0x200, pParse, p, ("multiSelect UNION ALL right...\n")); rc = sqlite3Select(pParse, p, &dest); testcase( rc!=SQLITE_OK ); pDelete = p->pPrior; @@ -137117,7 +144745,7 @@ static int multiSelect( */ assert( !pPrior->pOrderBy ); sqlite3SelectDestInit(&uniondest, priorOp, unionTab); - SELECTTRACE(1, pParse, p, ("multiSelect EXCEPT/UNION left...\n")); + TREETRACE(0x200, pParse, p, ("multiSelect EXCEPT/UNION left...\n")); rc = sqlite3Select(pParse, pPrior, &uniondest); if( rc ){ goto multi_select_end; @@ -137137,7 +144765,7 @@ static int multiSelect( uniondest.eDest = op; ExplainQueryPlan((pParse, 1, "%s USING TEMP B-TREE", sqlite3SelectOpName(p->op))); - SELECTTRACE(1, pParse, p, ("multiSelect EXCEPT/UNION right...\n")); + TREETRACE(0x200, pParse, p, ("multiSelect EXCEPT/UNION right...\n")); rc = sqlite3Select(pParse, p, &uniondest); testcase( rc!=SQLITE_OK ); assert( p->pOrderBy==0 ); @@ -137198,7 +144826,7 @@ static int multiSelect( /* Code the SELECTs to our left into temporary table "tab1". */ sqlite3SelectDestInit(&intersectdest, SRT_Union, tab1); - SELECTTRACE(1, pParse, p, ("multiSelect INTERSECT left...\n")); + TREETRACE(0x400, pParse, p, ("multiSelect INTERSECT left...\n")); rc = sqlite3Select(pParse, pPrior, &intersectdest); if( rc ){ goto multi_select_end; @@ -137215,7 +144843,7 @@ static int multiSelect( intersectdest.iSDParm = tab2; ExplainQueryPlan((pParse, 1, "%s USING TEMP B-TREE", sqlite3SelectOpName(p->op))); - SELECTTRACE(1, pParse, p, ("multiSelect INTERSECT right...\n")); + TREETRACE(0x400, pParse, p, ("multiSelect INTERSECT right...\n")); rc = sqlite3Select(pParse, p, &intersectdest); testcase( rc!=SQLITE_OK ); pDelete = p->pPrior; @@ -137312,9 +144940,7 @@ multi_select_end: pDest->iSdst = dest.iSdst; pDest->nSdst = dest.nSdst; if( pDelete ){ - sqlite3ParserAddCleanup(pParse, - (void(*)(sqlite3*,void*))sqlite3SelectDelete, - pDelete); + sqlite3ParserAddCleanup(pParse, sqlite3SelectDeleteGeneric, pDelete); } return rc; } @@ -137336,7 +144962,7 @@ SQLITE_PRIVATE void sqlite3SelectWrongNumTermsError(Parse *pParse, Select *p){ /* ** Code an output subroutine for a coroutine implementation of a -** SELECT statment. +** SELECT statement. ** ** The data to be output is contained in pIn->iSdst. There are ** pIn->nSdst columns to be output. pDest is where the output should @@ -137558,7 +145184,7 @@ static int generateOutputSubroutine( ** ** We call AltB, AeqB, AgtB, EofA, and EofB "subroutines" but they are not ** actually called using Gosub and they do not Return. EofA and EofB loop -** until all data is exhausted then jump to the "end" labe. AltB, AeqB, +** until all data is exhausted then jump to the "end" label. AltB, AeqB, ** and AgtB jump to either L2 or to one of EofA or EofB. */ #ifndef SQLITE_OMIT_COMPOUND_SELECT @@ -137595,7 +145221,7 @@ static int multiSelectOrderBy( int savedOffset; /* Saved value of p->iOffset */ int labelCmpr; /* Label for the start of the merge algorithm */ int labelEnd; /* Label for the end of the overall SELECT stmt */ - int addr1; /* Jump instructions that get retargetted */ + int addr1; /* Jump instructions that get retargeted */ int op; /* One of TK_ALL, TK_UNION, TK_EXCEPT, TK_INTERSECT */ KeyInfo *pKeyDup = 0; /* Comparison information for duplicate removal */ KeyInfo *pKeyMerge; /* Comparison information for merging rows */ @@ -137862,10 +145488,10 @@ static int multiSelectOrderBy( */ sqlite3VdbeResolveLabel(v, labelEnd); - /* Reassembly the compound query so that it will be freed correctly - ** by the calling function */ + /* Make arrangements to free the 2nd and subsequent arms of the compound + ** after the parse has finished */ if( pSplit->pPrior ){ - sqlite3SelectDelete(db, pSplit->pPrior); + sqlite3ParserAddCleanup(pParse, sqlite3SelectDeleteGeneric, pSplit->pPrior); } pSplit->pPrior = pPrior; pPrior->pNext = pSplit; @@ -137886,13 +145512,42 @@ static int multiSelectOrderBy( ** ** All references to columns in table iTable are to be replaced by corresponding ** expressions in pEList. +** +** ## About "isOuterJoin": +** +** The isOuterJoin column indicates that the replacement will occur into a +** position in the parent that NULL-able due to an OUTER JOIN. Either the +** target slot in the parent is the right operand of a LEFT JOIN, or one of +** the left operands of a RIGHT JOIN. In either case, we need to potentially +** bypass the substituted expression with OP_IfNullRow. +** +** Suppose the original expression is an integer constant. Even though the table +** has the nullRow flag set, because the expression is an integer constant, +** it will not be NULLed out. So instead, we insert an OP_IfNullRow opcode +** that checks to see if the nullRow flag is set on the table. If the nullRow +** flag is set, then the value in the register is set to NULL and the original +** expression is bypassed. If the nullRow flag is not set, then the original +** expression runs to populate the register. +** +** Example where this is needed: +** +** CREATE TABLE t1(a INTEGER PRIMARY KEY, b INT); +** CREATE TABLE t2(x INT UNIQUE); +** +** SELECT a,b,m,x FROM t1 LEFT JOIN (SELECT 59 AS m,x FROM t2) ON b=x; +** +** When the subquery on the right side of the LEFT JOIN is flattened, we +** have to add OP_IfNullRow in front of the OP_Integer that implements the +** "m" value of the subquery so that a NULL will be loaded instead of 59 +** when processing a non-matched row of the left. */ typedef struct SubstContext { Parse *pParse; /* The parsing context */ int iTable; /* Replace references to this table */ int iNewTable; /* New table number */ - int isLeftJoin; /* Add TK_IF_NULL_ROW opcodes on each replacement */ + int isOuterJoin; /* Add TK_IF_NULL_ROW opcodes on each replacement */ ExprList *pEList; /* Replacement expressions */ + ExprList *pCList; /* Collation sequences for replacement expr */ } SubstContext; /* Forward Declarations */ @@ -137917,10 +145572,11 @@ static Expr *substExpr( Expr *pExpr /* Expr in which substitution occurs */ ){ if( pExpr==0 ) return 0; - if( ExprHasProperty(pExpr, EP_FromJoin) - && pExpr->w.iRightJoinTable==pSubst->iTable + if( ExprHasProperty(pExpr, EP_OuterON|EP_InnerON) + && pExpr->w.iJoin==pSubst->iTable ){ - pExpr->w.iRightJoinTable = pSubst->iNewTable; + testcase( ExprHasProperty(pExpr, EP_InnerON) ); + pExpr->w.iJoin = pSubst->iNewTable; } if( pExpr->op==TK_COLUMN && pExpr->iTable==pSubst->iTable @@ -137933,19 +145589,26 @@ static Expr *substExpr( #endif { Expr *pNew; - Expr *pCopy = pSubst->pEList->a[pExpr->iColumn].pExpr; + int iColumn; + Expr *pCopy; Expr ifNullRow; - assert( pSubst->pEList!=0 && pExpr->iColumn<pSubst->pEList->nExpr ); + iColumn = pExpr->iColumn; + assert( iColumn>=0 ); + assert( pSubst->pEList!=0 && iColumn<pSubst->pEList->nExpr ); assert( pExpr->pRight==0 ); + pCopy = pSubst->pEList->a[iColumn].pExpr; if( sqlite3ExprIsVector(pCopy) ){ sqlite3VectorErrorMsg(pSubst->pParse, pCopy); }else{ sqlite3 *db = pSubst->pParse->db; - if( pSubst->isLeftJoin && pCopy->op!=TK_COLUMN ){ + if( pSubst->isOuterJoin + && (pCopy->op!=TK_COLUMN || pCopy->iTable!=pSubst->iNewTable) + ){ memset(&ifNullRow, 0, sizeof(ifNullRow)); ifNullRow.op = TK_IF_NULL_ROW; ifNullRow.pLeft = pCopy; ifNullRow.iTable = pSubst->iNewTable; + ifNullRow.iColumn = -99; ifNullRow.flags = EP_IfNullRow; pCopy = &ifNullRow; } @@ -137955,22 +145618,33 @@ static Expr *substExpr( sqlite3ExprDelete(db, pNew); return pExpr; } - if( pSubst->isLeftJoin ){ + if( pSubst->isOuterJoin ){ ExprSetProperty(pNew, EP_CanBeNull); } - if( ExprHasProperty(pExpr,EP_FromJoin) ){ - sqlite3SetJoinExpr(pNew, pExpr->w.iRightJoinTable); + if( ExprHasProperty(pExpr,EP_OuterON|EP_InnerON) ){ + sqlite3SetJoinExpr(pNew, pExpr->w.iJoin, + pExpr->flags & (EP_OuterON|EP_InnerON)); } sqlite3ExprDelete(db, pExpr); pExpr = pNew; + if( pExpr->op==TK_TRUEFALSE ){ + pExpr->u.iValue = sqlite3ExprTruthValue(pExpr); + pExpr->op = TK_INTEGER; + ExprSetProperty(pExpr, EP_IntValue); + } /* Ensure that the expression now has an implicit collation sequence, ** just as it did when it was a column of a view or sub-query. */ - if( pExpr->op!=TK_COLUMN && pExpr->op!=TK_COLLATE ){ - CollSeq *pColl = sqlite3ExprCollSeq(pSubst->pParse, pExpr); - pExpr = sqlite3ExprAddCollateString(pSubst->pParse, pExpr, - (pColl ? pColl->zName : "BINARY") + { + CollSeq *pNat = sqlite3ExprCollSeq(pSubst->pParse, pExpr); + CollSeq *pColl = sqlite3ExprCollSeq(pSubst->pParse, + pSubst->pCList->a[iColumn].pExpr ); + if( pNat!=pColl || (pExpr->op!=TK_COLUMN && pExpr->op!=TK_COLLATE) ){ + pExpr = sqlite3ExprAddCollateString(pSubst->pParse, pExpr, + (pColl ? pColl->zName : "BINARY") + ); + } } ExprClearProperty(pExpr, EP_Collate); } @@ -138123,8 +145797,8 @@ static int renumberCursorsCb(Walker *pWalker, Expr *pExpr){ if( op==TK_COLUMN || op==TK_IF_NULL_ROW ){ renumberCursorDoMapping(pWalker, &pExpr->iTable); } - if( ExprHasProperty(pExpr, EP_FromJoin) ){ - renumberCursorDoMapping(pWalker, &pExpr->w.iRightJoinTable); + if( ExprHasProperty(pExpr, EP_OuterON) ){ + renumberCursorDoMapping(pWalker, &pExpr->w.iJoin); } return WRC_Continue; } @@ -138163,6 +145837,46 @@ static void renumberCursors( } #endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */ +/* +** If pSel is not part of a compound SELECT, return a pointer to its +** expression list. Otherwise, return a pointer to the expression list +** of the leftmost SELECT in the compound. +*/ +static ExprList *findLeftmostExprlist(Select *pSel){ + while( pSel->pPrior ){ + pSel = pSel->pPrior; + } + return pSel->pEList; +} + +/* +** Return true if any of the result-set columns in the compound query +** have incompatible affinities on one or more arms of the compound. +*/ +static int compoundHasDifferentAffinities(Select *p){ + int ii; + ExprList *pList; + assert( p!=0 ); + assert( p->pEList!=0 ); + assert( p->pPrior!=0 ); + pList = p->pEList; + for(ii=0; ii<pList->nExpr; ii++){ + char aff; + Select *pSub1; + assert( pList->a[ii].pExpr!=0 ); + aff = sqlite3ExprAffinity(pList->a[ii].pExpr); + for(pSub1=p->pPrior; pSub1; pSub1=pSub1->pPrior){ + assert( pSub1->pEList!=0 ); + assert( pSub1->pEList->nExpr>ii ); + assert( pSub1->pEList->a[ii].pExpr!=0 ); + if( sqlite3ExprAffinity(pSub1->pEList->a[ii].pExpr)!=aff ){ + return 1; + } + } + } + return 0; +} + #if !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) /* ** This routine attempts to flatten subqueries as a performance optimization. @@ -138207,8 +145921,10 @@ static void renumberCursors( ** (3a) the subquery may not be a join and ** (3b) the FROM clause of the subquery may not contain a virtual ** table and -** (3c) the outer query may not be an aggregate. +** (**) Was: "The outer query may not have a GROUP BY." This case +** is now managed correctly ** (3d) the outer query may not be DISTINCT. +** See also (26) for restrictions on RIGHT JOIN. ** ** (4) The subquery can not be DISTINCT. ** @@ -138229,7 +145945,7 @@ static void renumberCursors( ** (9) If the subquery uses LIMIT then the outer query may not be aggregate. ** ** (**) Restriction (10) was removed from the code on 2005-02-05 but we -** accidently carried the comment forward until 2014-09-15. Original +** accidentally carried the comment forward until 2014-09-15. Original ** constraint: "If the subquery is aggregate then the outer query ** may not use LIMIT." ** @@ -138260,6 +145976,11 @@ static void renumberCursors( ** (17d2) DISTINCT ** (17e) the subquery may not contain window functions, and ** (17f) the subquery must not be the RHS of a LEFT JOIN. +** (17g) either the subquery is the first element of the outer +** query or there are no RIGHT or FULL JOINs in any arm +** of the subquery. (This is a duplicate of condition (27b).) +** (17h) The corresponding result set expressions in all arms of the +** compound must have the same affinity. ** ** The parent and sub-query may contain WHERE clauses. Subject to ** rules (11), (13) and (14), they may also contain ORDER BY, @@ -138307,6 +146028,18 @@ static void renumberCursors( ** function in the select list or ORDER BY clause, flattening ** is not attempted. ** +** (26) The subquery may not be the right operand of a RIGHT JOIN. +** See also (3) for restrictions on LEFT JOIN. +** +** (27) The subquery may not contain a FULL or RIGHT JOIN unless it +** is the first element of the parent query. Two subcases: +** (27a) the subquery is not a compound query. +** (27b) the subquery is a compound query and the RIGHT JOIN occurs +** in any arm of the compound query. (See also (17g).) +** +** (28) The subquery is not a MATERIALIZED CTE. (This is handled +** in the caller before ever reaching this routine.) +** ** ** In this routine, the "p" parameter is a pointer to the outer query. ** The subquery is p->pSrc->a[iFrom]. isAgg is true if the outer query @@ -138332,7 +146065,7 @@ static int flattenSubquery( SrcList *pSubSrc; /* The FROM clause of the subquery */ int iParent; /* VDBE cursor number of the pSub result set temp table */ int iNewParent = -1;/* Replacement table for iParent */ - int isLeftJoin = 0; /* True if pSub is the right side of a LEFT JOIN */ + int isOuterJoin = 0; /* True if pSub is the right side of a LEFT JOIN */ int i; /* Loop counter */ Expr *pWhere; /* The WHERE clause */ SrcItem *pSubitem; /* The subquery */ @@ -138398,32 +146131,26 @@ static int flattenSubquery( ** ** which is not at all the same thing. ** - ** If the subquery is the right operand of a LEFT JOIN, then the outer - ** query cannot be an aggregate. (3c) This is an artifact of the way - ** aggregates are processed - there is no mechanism to determine if - ** the LEFT JOIN table should be all-NULL. - ** ** See also tickets #306, #350, and #3300. */ - if( (pSubitem->fg.jointype & JT_OUTER)!=0 ){ - isLeftJoin = 1; - if( pSubSrc->nSrc>1 /* (3a) */ - || isAgg /* (3b) */ - || IsVirtual(pSubSrc->a[0].pTab) /* (3c) */ - || (p->selFlags & SF_Distinct)!=0 /* (3d) */ + if( (pSubitem->fg.jointype & (JT_OUTER|JT_LTORJ))!=0 ){ + if( pSubSrc->nSrc>1 /* (3a) */ + || IsVirtual(pSubSrc->a[0].pTab) /* (3b) */ + || (p->selFlags & SF_Distinct)!=0 /* (3d) */ + || (pSubitem->fg.jointype & JT_RIGHT)!=0 /* (26) */ ){ return 0; } + isOuterJoin = 1; } -#ifdef SQLITE_EXTRA_IFNULLROW - else if( iFrom>0 && !isAgg ){ - /* Setting isLeftJoin to -1 causes OP_IfNullRow opcodes to be generated for - ** every reference to any result column from subquery in a join, even - ** though they are not necessary. This will stress-test the OP_IfNullRow - ** opcode. */ - isLeftJoin = -1; + + assert( pSubSrc->nSrc>0 ); /* True by restriction (7) */ + if( iFrom>0 && (pSubSrc->a[0].fg.jointype & JT_LTORJ)!=0 ){ + return 0; /* Restriction (27a) */ } -#endif + + /* Condition (28) is blocked by the caller */ + assert( !pSubitem->fg.isCte || pSubitem->u2.pCteUse->eM10d!=M10d_Yes ); /* Restriction (17): If the sub-query is a compound SELECT, then it must ** use only the UNION ALL operator. And none of the simple select queries @@ -138431,10 +146158,11 @@ static int flattenSubquery( ** queries. */ if( pSub->pPrior ){ + int ii; if( pSub->pOrderBy ){ return 0; /* Restriction (20) */ } - if( isAgg || (p->selFlags & SF_Distinct)!=0 || isLeftJoin>0 ){ + if( isAgg || (p->selFlags & SF_Distinct)!=0 || isOuterJoin>0 ){ return 0; /* (17d1), (17d2), or (17f) */ } for(pSub1=pSub; pSub1; pSub1=pSub1->pPrior){ @@ -138452,12 +146180,17 @@ static int flattenSubquery( ){ return 0; } + if( iFrom>0 && (pSub1->pSrc->a[0].fg.jointype & JT_LTORJ)!=0 ){ + /* Without this restriction, the JT_LTORJ flag would end up being + ** omitted on left-hand tables of the right join that is being + ** flattened. */ + return 0; /* Restrictions (17g), (27b) */ + } testcase( pSub1->pSrc->nSrc>1 ); } /* Restriction (18). */ if( p->pOrderBy ){ - int ii; for(ii=0; ii<p->pOrderBy->nExpr; ii++){ if( p->pOrderBy->a[ii].u.x.iOrderByCol==0 ) return 0; } @@ -138466,15 +146199,19 @@ static int flattenSubquery( /* Restriction (23) */ if( (p->selFlags & SF_Recursive) ) return 0; + /* Restriction (17h) */ + if( compoundHasDifferentAffinities(pSub) ) return 0; + if( pSrc->nSrc>1 ){ if( pParse->nSelect>500 ) return 0; + if( OptimizationDisabled(db, SQLITE_FlttnUnionAll) ) return 0; aCsrMap = sqlite3DbMallocZero(db, ((i64)pParse->nTab+1)*sizeof(int)); if( aCsrMap ) aCsrMap[0] = pParse->nTab; } } /***** If we reach this point, flattening is permitted. *****/ - SELECTTRACE(1,pParse,p,("flatten %u.%p from term %d\n", + TREETRACE(0x4,pParse,p,("flatten %u.%p from term %d\n", pSub->selId, pSub, iFrom)); /* Authorize the subquery */ @@ -138483,7 +146220,7 @@ static int flattenSubquery( testcase( i==SQLITE_DENY ); pParse->zAuthContext = zSavedAuthContext; - /* Delete the transient structures associated with thesubquery */ + /* Delete the transient structures associated with the subquery */ pSub1 = pSubitem->pSelect; sqlite3DbFree(db, pSubitem->zDatabase); sqlite3DbFree(db, pSubitem->zName); @@ -138492,7 +146229,7 @@ static int flattenSubquery( pSubitem->zName = 0; pSubitem->zAlias = 0; pSubitem->pSelect = 0; - assert( pSubitem->pOn==0 ); + assert( pSubitem->fg.isUsing!=0 || pSubitem->u3.pOn==0 ); /* If the sub-query is a compound SELECT statement, then (by restrictions ** 17 and 18 above) it must be a UNION ALL and the parent query must @@ -138553,7 +146290,7 @@ static int flattenSubquery( if( pPrior ) pPrior->pNext = pNew; pNew->pNext = p; p->pPrior = pNew; - SELECTTRACE(2,pParse,p,("compound-subquery flattener" + TREETRACE(0x4,pParse,p,("compound-subquery flattener" " creates %u as peer\n",pNew->selId)); } assert( pSubitem->pSelect==0 ); @@ -138575,9 +146312,7 @@ static int flattenSubquery( Table *pTabToDel = pSubitem->pTab; if( pTabToDel->nTabRef==1 ){ Parse *pToplevel = sqlite3ParseToplevel(pParse); - sqlite3ParserAddCleanup(pToplevel, - (void(*)(sqlite3*,void*))sqlite3DeleteTable, - pTabToDel); + sqlite3ParserAddCleanup(pToplevel, sqlite3DeleteTableGeneric, pTabToDel); testcase( pToplevel->earlyCleanup ); }else{ pTabToDel->nTabRef--; @@ -138602,6 +146337,7 @@ static int flattenSubquery( for(pParent=p; pParent; pParent=pParent->pPrior, pSub=pSub->pPrior){ int nSubSrc; u8 jointype = 0; + u8 ltorj = pSrc->a[iFrom].fg.jointype & JT_LTORJ; assert( pSub!=0 ); pSubSrc = pSub->pSrc; /* FROM clause of subquery */ nSubSrc = pSubSrc->nSrc; /* Number of terms in subquery FROM clause */ @@ -138636,13 +146372,16 @@ static int flattenSubquery( ** outer query. */ for(i=0; i<nSubSrc; i++){ - sqlite3IdListDelete(db, pSrc->a[i+iFrom].pUsing); - assert( pSrc->a[i+iFrom].fg.isTabFunc==0 ); - pSrc->a[i+iFrom] = pSubSrc->a[i]; + SrcItem *pItem = &pSrc->a[i+iFrom]; + if( pItem->fg.isUsing ) sqlite3IdListDelete(db, pItem->u3.pUsing); + assert( pItem->fg.isTabFunc==0 ); + *pItem = pSubSrc->a[i]; + pItem->fg.jointype |= ltorj; iNewParent = pSubSrc->a[i].iCursor; memset(&pSubSrc->a[i], 0, sizeof(pSubSrc->a[i])); } - pSrc->a[iFrom].fg.jointype = jointype; + pSrc->a[iFrom].fg.jointype &= JT_LTORJ; + pSrc->a[iFrom].fg.jointype |= jointype | ltorj; /* Now begin substituting subquery result set expressions for ** references to the iParent in the outer query. @@ -138661,7 +146400,7 @@ static int flattenSubquery( ** ORDER BY column expression is identical to the iOrderByCol'th ** expression returned by SELECT statement pSub. Since these values ** do not necessarily correspond to columns in SELECT statement pParent, - ** zero them before transfering the ORDER BY clause. + ** zero them before transferring the ORDER BY clause. ** ** Not doing this may cause an error if a subsequent call to this ** function attempts to flatten a compound sub-query into pParent @@ -138677,8 +146416,8 @@ static int flattenSubquery( } pWhere = pSub->pWhere; pSub->pWhere = 0; - if( isLeftJoin>0 ){ - sqlite3SetJoinExpr(pWhere, iNewParent); + if( isOuterJoin>0 ){ + sqlite3SetJoinExpr(pWhere, iNewParent, EP_OuterON); } if( pWhere ){ if( pParent->pWhere ){ @@ -138692,8 +146431,9 @@ static int flattenSubquery( x.pParse = pParse; x.iTable = iParent; x.iNewTable = iNewParent; - x.isLeftJoin = isLeftJoin; + x.isOuterJoin = isOuterJoin; x.pEList = pSub->pEList; + x.pCList = findLeftmostExprlist(pSub); substSelect(&x, pParent, 0); } @@ -138713,23 +146453,22 @@ static int flattenSubquery( pSub->pLimit = 0; } - /* Recompute the SrcList_item.colUsed masks for the flattened + /* Recompute the SrcItem.colUsed masks for the flattened ** tables. */ for(i=0; i<nSubSrc; i++){ recomputeColumnsUsed(pParent, &pSrc->a[i+iFrom]); } } - /* Finially, delete what is left of the subquery and return - ** success. + /* Finally, delete what is left of the subquery and return success. */ sqlite3AggInfoPersistWalkerInit(&w, pParse); sqlite3WalkSelect(&w,pSub1); sqlite3SelectDelete(db, pSub1); -#if SELECTTRACE_ENABLED - if( sqlite3SelectTrace & 0x100 ){ - SELECTTRACE(0x100,pParse,p,("After flattening:\n")); +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x4 ){ + TREETRACE(0x4,pParse,p,("After flattening:\n")); sqlite3TreeViewSelect(0, p, 0); } #endif @@ -138749,12 +146488,14 @@ struct WhereConst { int nConst; /* Number for COLUMN=CONSTANT terms */ int nChng; /* Number of times a constant is propagated */ int bHasAffBlob; /* At least one column in apExpr[] as affinity BLOB */ + u32 mExcludeOn; /* Which ON expressions to exclude from considertion. + ** Either EP_OuterON or EP_InnerON|EP_OuterON */ Expr **apExpr; /* [i*2] is COLUMN and [i*2+1] is VALUE */ }; /* ** Add a new entry to the pConst object. Except, do not add duplicate -** pColumn entires. Also, do not add if doing so would not be appropriate. +** pColumn entries. Also, do not add if doing so would not be appropriate. ** ** The caller guarantees the pColumn is a column and pValue is a constant. ** This routine has to do some additional checks before completing the @@ -138811,7 +146552,11 @@ static void constInsert( static void findConstInWhere(WhereConst *pConst, Expr *pExpr){ Expr *pRight, *pLeft; if( NEVER(pExpr==0) ) return; - if( ExprHasProperty(pExpr, EP_FromJoin) ) return; + if( ExprHasProperty(pExpr, pConst->mExcludeOn) ){ + testcase( ExprHasProperty(pExpr, EP_OuterON) ); + testcase( ExprHasProperty(pExpr, EP_InnerON) ); + return; + } if( pExpr->op==TK_AND ){ findConstInWhere(pConst, pExpr->pRight); findConstInWhere(pConst, pExpr->pLeft); @@ -138847,9 +146592,10 @@ static int propagateConstantExprRewriteOne( int i; if( pConst->pOomFault[0] ) return WRC_Prune; if( pExpr->op!=TK_COLUMN ) return WRC_Continue; - if( ExprHasProperty(pExpr, EP_FixedCol|EP_FromJoin) ){ + if( ExprHasProperty(pExpr, EP_FixedCol|pConst->mExcludeOn) ){ testcase( ExprHasProperty(pExpr, EP_FixedCol) ); - testcase( ExprHasProperty(pExpr, EP_FromJoin) ); + testcase( ExprHasProperty(pExpr, EP_OuterON) ); + testcase( ExprHasProperty(pExpr, EP_InnerON) ); return WRC_Continue; } for(i=0; i<pConst->nConst; i++){ @@ -138935,7 +146681,7 @@ static int propagateConstantExprRewrite(Walker *pWalker, Expr *pExpr){ ** SELECT * FROM t1 WHERE a=123 AND b=123; ** ** The two SELECT statements above should return different answers. b=a -** is alway true because the comparison uses numeric affinity, but b=123 +** is always true because the comparison uses numeric affinity, but b=123 ** is false because it uses text affinity and '0123' is not the same as '123'. ** To work around this, the expression tree is not actually changed from ** "b=a" to "b=123" but rather the "a" in "b=a" is tagged with EP_FixedCol @@ -138973,6 +146719,17 @@ static int propagateConstants( x.nChng = 0; x.apExpr = 0; x.bHasAffBlob = 0; + if( ALWAYS(p->pSrc!=0) + && p->pSrc->nSrc>0 + && (p->pSrc->a[0].fg.jointype & JT_LTORJ)!=0 + ){ + /* Do not propagate constants on any ON clause if there is a + ** RIGHT JOIN anywhere in the query */ + x.mExcludeOn = EP_InnerON | EP_OuterON; + }else{ + /* Do not propagate constants through the ON clause of a LEFT JOIN */ + x.mExcludeOn = EP_OuterON; + } findConstInWhere(&x, p->pWhere); if( x.nConst ){ memset(&w, 0, sizeof(w)); @@ -139008,7 +146765,7 @@ static int propagateConstants( ** At the time this function is called it is guaranteed that ** ** * the sub-query uses only one distinct window frame, and -** * that the window frame has a PARTITION BY clase. +** * that the window frame has a PARTITION BY clause. */ static int pushDownWindowCheck(Parse *pParse, Select *pSubq, Expr *pExpr){ assert( pSubq->pWin->pPartition ); @@ -139085,6 +146842,29 @@ static int pushDownWindowCheck(Parse *pParse, Select *pSubq, Expr *pExpr){ ** be materialized. (This restriction is implemented in the calling ** routine.) ** +** (8) If the subquery is a compound that uses UNION, INTERSECT, +** or EXCEPT, then all of the result set columns for all arms of +** the compound must use the BINARY collating sequence. +** +** (9) All three of the following are true: +** +** (9a) The WHERE clause expression originates in the ON or USING clause +** of a join (either an INNER or an OUTER join), and +** +** (9b) The subquery is to the right of the ON/USING clause +** +** (9c) There is a RIGHT JOIN (or FULL JOIN) in between the ON/USING +** clause and the subquery. +** +** Without this restriction, the push-down optimization might move +** the ON/USING filter expression from the left side of a RIGHT JOIN +** over to the right side, which leads to incorrect answers. See +** also restriction (6) in sqlite3ExprIsSingleTableConstraint(). +** +** (10) The inner query is not the right-hand table of a RIGHT JOIN. +** +** (11) The subquery is not a VALUES clause +** ** Return 0 if no changes are made and non-zero if one or more WHERE clause ** terms are duplicated into the subquery. */ @@ -139092,23 +146872,56 @@ static int pushDownWhereTerms( Parse *pParse, /* Parse context (for malloc() and error reporting) */ Select *pSubq, /* The subquery whose WHERE clause is to be augmented */ Expr *pWhere, /* The WHERE clause of the outer query */ - SrcItem *pSrc /* The subquery term of the outer FROM clause */ + SrcList *pSrcList, /* The complete from clause of the outer query */ + int iSrc /* Which FROM clause term to try to push into */ ){ Expr *pNew; + SrcItem *pSrc; /* The subquery FROM term into which WHERE is pushed */ int nChng = 0; + pSrc = &pSrcList->a[iSrc]; if( pWhere==0 ) return 0; - if( pSubq->selFlags & (SF_Recursive|SF_MultiPart) ) return 0; + if( pSubq->selFlags & (SF_Recursive|SF_MultiPart) ){ + return 0; /* restrictions (2) and (11) */ + } + if( pSrc->fg.jointype & (JT_LTORJ|JT_RIGHT) ){ + return 0; /* restrictions (10) */ + } -#ifndef SQLITE_OMIT_WINDOWFUNC if( pSubq->pPrior ){ Select *pSel; + int notUnionAll = 0; for(pSel=pSubq; pSel; pSel=pSel->pPrior){ + u8 op = pSel->op; + assert( op==TK_ALL || op==TK_SELECT + || op==TK_UNION || op==TK_INTERSECT || op==TK_EXCEPT ); + if( op!=TK_ALL && op!=TK_SELECT ){ + notUnionAll = 1; + } +#ifndef SQLITE_OMIT_WINDOWFUNC if( pSel->pWin ) return 0; /* restriction (6b) */ +#endif + } + if( notUnionAll ){ + /* If any of the compound arms are connected using UNION, INTERSECT, + ** or EXCEPT, then we must ensure that none of the columns use a + ** non-BINARY collating sequence. */ + for(pSel=pSubq; pSel; pSel=pSel->pPrior){ + int ii; + const ExprList *pList = pSel->pEList; + assert( pList!=0 ); + for(ii=0; ii<pList->nExpr; ii++){ + CollSeq *pColl = sqlite3ExprCollSeq(pParse, pList->a[ii].pExpr); + if( !sqlite3IsBinary(pColl) ){ + return 0; /* Restriction (8) */ + } + } + } } }else{ +#ifndef SQLITE_OMIT_WINDOWFUNC if( pSubq->pWin && pSubq->pWin->pPartition==0 ) return 0; - } #endif + } #ifdef SQLITE_DEBUG /* Only the first term of a compound can have a WITH clause. But make @@ -139127,36 +146940,54 @@ static int pushDownWhereTerms( return 0; /* restriction (3) */ } while( pWhere->op==TK_AND ){ - nChng += pushDownWhereTerms(pParse, pSubq, pWhere->pRight, pSrc); + nChng += pushDownWhereTerms(pParse, pSubq, pWhere->pRight, pSrcList, iSrc); pWhere = pWhere->pLeft; } -#if 0 /* Legacy code. Checks now done by sqlite3ExprIsTableConstraint() */ +#if 0 /* These checks now done by sqlite3ExprIsSingleTableConstraint() */ + if( ExprHasProperty(pWhere, EP_OuterON|EP_InnerON) /* (9a) */ + && (pSrcList->a[0].fg.jointype & JT_LTORJ)!=0 /* Fast pre-test of (9c) */ + ){ + int jj; + for(jj=0; jj<iSrc; jj++){ + if( pWhere->w.iJoin==pSrcList->a[jj].iCursor ){ + /* If we reach this point, both (9a) and (9b) are satisfied. + ** The following loop checks (9c): + */ + for(jj++; jj<iSrc; jj++){ + if( (pSrcList->a[jj].fg.jointype & JT_RIGHT)!=0 ){ + return 0; /* restriction (9) */ + } + } + } + } + } if( isLeftJoin - && (ExprHasProperty(pWhere,EP_FromJoin)==0 - || pWhere->w.iRightJoinTable!=iCursor) + && (ExprHasProperty(pWhere,EP_OuterON)==0 + || pWhere->w.iJoin!=iCursor) ){ return 0; /* restriction (4) */ } - if( ExprHasProperty(pWhere,EP_FromJoin) - && pWhere->w.iRightJoinTable!=iCursor + if( ExprHasProperty(pWhere,EP_OuterON) + && pWhere->w.iJoin!=iCursor ){ return 0; /* restriction (5) */ } #endif - if( sqlite3ExprIsTableConstraint(pWhere, pSrc) ){ + if( sqlite3ExprIsSingleTableConstraint(pWhere, pSrcList, iSrc) ){ nChng++; pSubq->selFlags |= SF_PushDown; while( pSubq ){ SubstContext x; pNew = sqlite3ExprDup(pParse->db, pWhere, 0); - unsetJoinExpr(pNew, -1); + unsetJoinExpr(pNew, -1, 1); x.pParse = pParse; x.iTable = pSrc->iCursor; x.iNewTable = pSrc->iCursor; - x.isLeftJoin = 0; + x.isOuterJoin = 0; x.pEList = pSubq->pEList; + x.pCList = findLeftmostExprlist(pSubq); pNew = substExpr(&x, pNew); #ifndef SQLITE_OMIT_WINDOWFUNC if( pSubq->pWin && 0==pushDownWindowCheck(pParse, pSubq, pNew) ){ @@ -139179,6 +147010,78 @@ static int pushDownWhereTerms( #endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */ /* +** Check to see if a subquery contains result-set columns that are +** never used. If it does, change the value of those result-set columns +** to NULL so that they do not cause unnecessary work to compute. +** +** Return the number of column that were changed to NULL. +*/ +static int disableUnusedSubqueryResultColumns(SrcItem *pItem){ + int nCol; + Select *pSub; /* The subquery to be simplified */ + Select *pX; /* For looping over compound elements of pSub */ + Table *pTab; /* The table that describes the subquery */ + int j; /* Column number */ + int nChng = 0; /* Number of columns converted to NULL */ + Bitmask colUsed; /* Columns that may not be NULLed out */ + + assert( pItem!=0 ); + if( pItem->fg.isCorrelated || pItem->fg.isCte ){ + return 0; + } + assert( pItem->pTab!=0 ); + pTab = pItem->pTab; + assert( pItem->pSelect!=0 ); + pSub = pItem->pSelect; + assert( pSub->pEList->nExpr==pTab->nCol ); + for(pX=pSub; pX; pX=pX->pPrior){ + if( (pX->selFlags & (SF_Distinct|SF_Aggregate))!=0 ){ + testcase( pX->selFlags & SF_Distinct ); + testcase( pX->selFlags & SF_Aggregate ); + return 0; + } + if( pX->pPrior && pX->op!=TK_ALL ){ + /* This optimization does not work for compound subqueries that + ** use UNION, INTERSECT, or EXCEPT. Only UNION ALL is allowed. */ + return 0; + } +#ifndef SQLITE_OMIT_WINDOWFUNC + if( pX->pWin ){ + /* This optimization does not work for subqueries that use window + ** functions. */ + return 0; + } +#endif + } + colUsed = pItem->colUsed; + if( pSub->pOrderBy ){ + ExprList *pList = pSub->pOrderBy; + for(j=0; j<pList->nExpr; j++){ + u16 iCol = pList->a[j].u.x.iOrderByCol; + if( iCol>0 ){ + iCol--; + colUsed |= ((Bitmask)1)<<(iCol>=BMS ? BMS-1 : iCol); + } + } + } + nCol = pTab->nCol; + for(j=0; j<nCol; j++){ + Bitmask m = j<BMS-1 ? MASKBIT(j) : TOPBIT; + if( (m & colUsed)!=0 ) continue; + for(pX=pSub; pX; pX=pX->pPrior) { + Expr *pY = pX->pEList->a[j].pExpr; + if( pY->op==TK_NULL ) continue; + pY->op = TK_NULL; + ExprClearProperty(pY, EP_Skip|EP_Unlikely); + pX->selFlags |= SF_PushDown; + nChng++; + } + } + return nChng; +} + + +/* ** The pFunc is the only aggregate function in the query. Check to see ** if the query is a candidate for the min/max optimization. ** @@ -139228,7 +147131,7 @@ static u8 minMaxQuery(sqlite3 *db, Expr *pFunc, ExprList **ppMinMax){ } *ppMinMax = pOrderBy = sqlite3ExprListDup(db, pEList, 0); assert( pOrderBy!=0 || db->mallocFailed ); - if( pOrderBy ) pOrderBy->a[0].sortFlags = sortFlags; + if( pOrderBy ) pOrderBy->a[0].fg.sortFlags = sortFlags; return eRet; } @@ -139260,6 +147163,7 @@ static Table *isSimpleCount(Select *p, AggInfo *pAggInfo){ || p->pSrc->nSrc!=1 || p->pSrc->a[0].pSelect || pAggInfo->nFunc!=1 + || p->pHaving ){ return 0; } @@ -139364,7 +147268,7 @@ static int convertCompoundSelectToSubquery(Walker *pWalker, Select *p){ pNew = sqlite3DbMallocZero(db, sizeof(*pNew) ); if( pNew==0 ) return WRC_Abort; memset(&dummy, 0, sizeof(dummy)); - pNewSrc = sqlite3SrcListAppendFromTerm(pParse,0,0,0,&dummy,pNew,0,0); + pNewSrc = sqlite3SrcListAppendFromTerm(pParse,0,0,0,&dummy,pNew,0); if( pNewSrc==0 ) return WRC_Abort; *pNew = *p; p->pSrc = pNewSrc; @@ -139455,8 +147359,7 @@ static struct Cte *searchWith( SQLITE_PRIVATE With *sqlite3WithPush(Parse *pParse, With *pWith, u8 bFree){ if( pWith ){ if( bFree ){ - pWith = (With*)sqlite3ParserAddCleanup(pParse, - (void(*)(sqlite3*,void*))sqlite3WithDelete, + pWith = (With*)sqlite3ParserAddCleanup(pParse, sqlite3WithDeleteGeneric, pWith); if( pWith==0 ) return 0; } @@ -139568,9 +147471,6 @@ static int resolveFromTermToCte( pFrom->fg.isCte = 1; pFrom->u2.pCteUse = pCteUse; pCteUse->nUse++; - if( pCteUse->nUse>=2 && pCteUse->eM10d==M10d_Any ){ - pCteUse->eM10d = M10d_Yes; - } /* Check if this is a recursive CTE. */ pRecTerm = pSel = pFrom->pSelect; @@ -139680,9 +147580,9 @@ SQLITE_PRIVATE void sqlite3SelectPopWith(Walker *pWalker, Select *p){ #endif /* -** The SrcList_item structure passed as the second argument represents a +** The SrcItem structure passed as the second argument represents a ** sub-query in the FROM clause of a SELECT statement. This function -** allocates and populates the SrcList_item.pTab object. If successful, +** allocates and populates the SrcItem.pTab object. If successful, ** SQLITE_OK is returned. Otherwise, if an OOM error is encountered, ** SQLITE_NOMEM. */ @@ -139697,7 +147597,7 @@ SQLITE_PRIVATE int sqlite3ExpandSubquery(Parse *pParse, SrcItem *pFrom){ if( pFrom->zAlias ){ pTab->zName = sqlite3DbStrDup(pParse->db, pFrom->zAlias); }else{ - pTab->zName = sqlite3MPrintf(pParse->db, "subquery_%u", pSel->selId); + pTab->zName = sqlite3MPrintf(pParse->db, "%!S", pFrom); } while( pSel->pPrior ){ pSel = pSel->pPrior; } sqlite3ColumnsFromExprList(pParse, pSel->pEList,&pTab->nCol,&pTab->aCol); @@ -139709,11 +147609,35 @@ SQLITE_PRIVATE int sqlite3ExpandSubquery(Parse *pParse, SrcItem *pFrom){ #else pTab->tabFlags |= TF_Ephemeral; /* Legacy compatibility mode */ #endif + return pParse->nErr ? SQLITE_ERROR : SQLITE_OK; +} - return pParse->nErr ? SQLITE_ERROR : SQLITE_OK; +/* +** Check the N SrcItem objects to the right of pBase. (N might be zero!) +** If any of those SrcItem objects have a USING clause containing zName +** then return true. +** +** If N is zero, or none of the N SrcItem objects to the right of pBase +** contains a USING clause, or if none of the USING clauses contain zName, +** then return false. +*/ +static int inAnyUsingClause( + const char *zName, /* Name we are looking for */ + SrcItem *pBase, /* The base SrcItem. Looking at pBase[1] and following */ + int N /* How many SrcItems to check */ +){ + while( N>0 ){ + N--; + pBase++; + if( pBase->fg.isUsing==0 ) continue; + if( NEVER(pBase->u3.pUsing==0) ) continue; + if( sqlite3IdListIndex(pBase->u3.pUsing, zName)>=0 ) return 1; + } + return 0; } + /* ** This routine is a Walker callback for "expanding" a SELECT statement. ** "Expanding" means to do the following: @@ -139863,7 +147787,7 @@ static int selectExpander(Walker *pWalker, Select *p){ /* Process NATURAL keywords, and ON and USING clauses of joins. */ assert( db->mallocFailed==0 || pParse->nErr!=0 ); - if( pParse->nErr || sqliteProcessJoin(pParse, p) ){ + if( pParse->nErr || sqlite3ProcessJoin(pParse, p) ){ return WRC_Abort; } @@ -139911,7 +147835,7 @@ static int selectExpander(Walker *pWalker, Select *p){ pNew = sqlite3ExprListAppend(pParse, pNew, a[k].pExpr); if( pNew ){ pNew->a[pNew->nExpr-1].zEName = a[k].zEName; - pNew->a[pNew->nExpr-1].eEName = a[k].eEName; + pNew->a[pNew->nExpr-1].fg.eEName = a[k].fg.eEName; a[k].zEName = 0; } a[k].pExpr = 0; @@ -139920,102 +147844,174 @@ static int selectExpander(Walker *pWalker, Select *p){ ** expanded. */ int tableSeen = 0; /* Set to 1 when TABLE matches */ char *zTName = 0; /* text of name of TABLE */ + int iErrOfst; if( pE->op==TK_DOT ){ + assert( (selFlags & SF_NestedFrom)==0 ); assert( pE->pLeft!=0 ); assert( !ExprHasProperty(pE->pLeft, EP_IntValue) ); zTName = pE->pLeft->u.zToken; + assert( ExprUseWOfst(pE->pLeft) ); + iErrOfst = pE->pRight->w.iOfst; + }else{ + assert( ExprUseWOfst(pE) ); + iErrOfst = pE->w.iOfst; } for(i=0, pFrom=pTabList->a; i<pTabList->nSrc; i++, pFrom++){ - Table *pTab = pFrom->pTab; - Select *pSub = pFrom->pSelect; - char *zTabName = pFrom->zAlias; - const char *zSchemaName = 0; - int iDb; - if( zTabName==0 ){ + int nAdd; /* Number of cols including rowid */ + Table *pTab = pFrom->pTab; /* Table for this data source */ + ExprList *pNestedFrom; /* Result-set of a nested FROM clause */ + char *zTabName; /* AS name for this data source */ + const char *zSchemaName = 0; /* Schema name for this data source */ + int iDb; /* Schema index for this data src */ + IdList *pUsing; /* USING clause for pFrom[1] */ + + if( (zTabName = pFrom->zAlias)==0 ){ zTabName = pTab->zName; } if( db->mallocFailed ) break; - if( pSub==0 || (pSub->selFlags & SF_NestedFrom)==0 ){ - pSub = 0; + assert( (int)pFrom->fg.isNestedFrom == IsNestedFrom(pFrom->pSelect) ); + if( pFrom->fg.isNestedFrom ){ + assert( pFrom->pSelect!=0 ); + pNestedFrom = pFrom->pSelect->pEList; + assert( pNestedFrom!=0 ); + assert( pNestedFrom->nExpr==pTab->nCol ); + assert( VisibleRowid(pTab)==0 ); + }else{ if( zTName && sqlite3StrICmp(zTName, zTabName)!=0 ){ continue; } + pNestedFrom = 0; iDb = sqlite3SchemaToIndex(db, pTab->pSchema); zSchemaName = iDb>=0 ? db->aDb[iDb].zDbSName : "*"; } - for(j=0; j<pTab->nCol; j++){ - char *zName = pTab->aCol[j].zCnName; - char *zColname; /* The computed column name */ - char *zToFree; /* Malloced string that needs to be freed */ - Token sColname; /* Computed column name as a token */ - - assert( zName ); - if( zTName && pSub - && sqlite3MatchEName(&pSub->pEList->a[j], 0, zTName, 0)==0 - ){ - continue; + if( i+1<pTabList->nSrc + && pFrom[1].fg.isUsing + && (selFlags & SF_NestedFrom)!=0 + ){ + int ii; + pUsing = pFrom[1].u3.pUsing; + for(ii=0; ii<pUsing->nId; ii++){ + const char *zUName = pUsing->a[ii].zName; + pRight = sqlite3Expr(db, TK_ID, zUName); + sqlite3ExprSetErrorOffset(pRight, iErrOfst); + pNew = sqlite3ExprListAppend(pParse, pNew, pRight); + if( pNew ){ + struct ExprList_item *pX = &pNew->a[pNew->nExpr-1]; + assert( pX->zEName==0 ); + pX->zEName = sqlite3MPrintf(db,"..%s", zUName); + pX->fg.eEName = ENAME_TAB; + pX->fg.bUsingTerm = 1; + } } + }else{ + pUsing = 0; + } - /* If a column is marked as 'hidden', omit it from the expanded - ** result-set list unless the SELECT has the SF_IncludeHidden - ** bit set. - */ - if( (p->selFlags & SF_IncludeHidden)==0 - && IsHiddenColumn(&pTab->aCol[j]) - ){ - continue; - } - tableSeen = 1; + nAdd = pTab->nCol + (VisibleRowid(pTab) && (selFlags&SF_NestedFrom)); + for(j=0; j<nAdd; j++){ + const char *zName; + struct ExprList_item *pX; /* Newly added ExprList term */ + + if( j==pTab->nCol ){ + zName = sqlite3RowidAlias(pTab); + if( zName==0 ) continue; + }else{ + zName = pTab->aCol[j].zCnName; + + /* If pTab is actually an SF_NestedFrom sub-select, do not + ** expand any ENAME_ROWID columns. */ + if( pNestedFrom && pNestedFrom->a[j].fg.eEName==ENAME_ROWID ){ + continue; + } + + if( zTName + && pNestedFrom + && sqlite3MatchEName(&pNestedFrom->a[j], 0, zTName, 0, 0)==0 + ){ + continue; + } - if( i>0 && zTName==0 ){ - if( (pFrom->fg.jointype & JT_NATURAL)!=0 - && tableAndColumnIndex(pTabList, i, zName, 0, 0, 1) + /* If a column is marked as 'hidden', omit it from the expanded + ** result-set list unless the SELECT has the SF_IncludeHidden + ** bit set. + */ + if( (p->selFlags & SF_IncludeHidden)==0 + && IsHiddenColumn(&pTab->aCol[j]) ){ - /* In a NATURAL join, omit the join columns from the - ** table to the right of the join */ continue; } - if( sqlite3IdListIndex(pFrom->pUsing, zName)>=0 ){ + if( (pTab->aCol[j].colFlags & COLFLAG_NOEXPAND)!=0 + && zTName==0 + && (selFlags & (SF_NestedFrom))==0 + ){ + continue; + } + } + assert( zName ); + tableSeen = 1; + + if( i>0 && zTName==0 && (selFlags & SF_NestedFrom)==0 ){ + if( pFrom->fg.isUsing + && sqlite3IdListIndex(pFrom->u3.pUsing, zName)>=0 + ){ /* In a join with a USING clause, omit columns in the ** using clause from the table on the right. */ continue; } } pRight = sqlite3Expr(db, TK_ID, zName); - zColname = zName; - zToFree = 0; - if( longNames || pTabList->nSrc>1 ){ + if( (pTabList->nSrc>1 + && ( (pFrom->fg.jointype & JT_LTORJ)==0 + || (selFlags & SF_NestedFrom)!=0 + || !inAnyUsingClause(zName,pFrom,pTabList->nSrc-i-1) + ) + ) + || IN_RENAME_OBJECT + ){ Expr *pLeft; pLeft = sqlite3Expr(db, TK_ID, zTabName); pExpr = sqlite3PExpr(pParse, TK_DOT, pLeft, pRight); + if( IN_RENAME_OBJECT && pE->pLeft ){ + sqlite3RenameTokenRemap(pParse, pLeft, pE->pLeft); + } if( zSchemaName ){ pLeft = sqlite3Expr(db, TK_ID, zSchemaName); pExpr = sqlite3PExpr(pParse, TK_DOT, pLeft, pExpr); } - if( longNames ){ - zColname = sqlite3MPrintf(db, "%s.%s", zTabName, zName); - zToFree = zColname; - } }else{ pExpr = pRight; } + sqlite3ExprSetErrorOffset(pExpr, iErrOfst); pNew = sqlite3ExprListAppend(pParse, pNew, pExpr); - sqlite3TokenInit(&sColname, zColname); - sqlite3ExprListSetName(pParse, pNew, &sColname, 0); - if( pNew && (p->selFlags & SF_NestedFrom)!=0 && !IN_RENAME_OBJECT ){ - struct ExprList_item *pX = &pNew->a[pNew->nExpr-1]; - sqlite3DbFree(db, pX->zEName); - if( pSub ){ - pX->zEName = sqlite3DbStrDup(db, pSub->pEList->a[j].zEName); + if( pNew==0 ){ + break; /* OOM */ + } + pX = &pNew->a[pNew->nExpr-1]; + assert( pX->zEName==0 ); + if( (selFlags & SF_NestedFrom)!=0 && !IN_RENAME_OBJECT ){ + if( pNestedFrom ){ + pX->zEName = sqlite3DbStrDup(db, pNestedFrom->a[j].zEName); testcase( pX->zEName==0 ); }else{ pX->zEName = sqlite3MPrintf(db, "%s.%s.%s", - zSchemaName, zTabName, zColname); + zSchemaName, zTabName, zName); testcase( pX->zEName==0 ); } - pX->eEName = ENAME_TAB; + pX->fg.eEName = (j==pTab->nCol ? ENAME_ROWID : ENAME_TAB); + if( (pFrom->fg.isUsing + && sqlite3IdListIndex(pFrom->u3.pUsing, zName)>=0) + || (pUsing && sqlite3IdListIndex(pUsing, zName)>=0) + || (j<pTab->nCol && (pTab->aCol[j].colFlags & COLFLAG_NOEXPAND)) + ){ + pX->fg.bNoExpand = 1; + } + }else if( longNames ){ + pX->zEName = sqlite3MPrintf(db, "%s.%s", zTabName, zName); + pX->fg.eEName = ENAME_NAME; + }else{ + pX->zEName = sqlite3DbStrDup(db, zName); + pX->fg.eEName = ENAME_NAME; } - sqlite3DbFree(db, zToFree); } } if( !tableSeen ){ @@ -140039,6 +148035,12 @@ static int selectExpander(Walker *pWalker, Select *p){ p->selFlags |= SF_ComplexResult; } } +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x8 ){ + TREETRACE(0x8,pParse,p,("After result-set wildcard expansion:\n")); + sqlite3TreeViewSelect(0, p, 0); + } +#endif return WRC_Continue; } @@ -140086,14 +148088,14 @@ static void sqlite3SelectExpand(Parse *pParse, Select *pSelect){ ** This is a Walker.xSelectCallback callback for the sqlite3SelectTypeInfo() ** interface. ** -** For each FROM-clause subquery, add Column.zType and Column.zColl -** information to the Table structure that represents the result set -** of that subquery. +** For each FROM-clause subquery, add Column.zType, Column.zColl, and +** Column.affinity information to the Table structure that represents +** the result set of that subquery. ** ** The Table structure that represents the result set was constructed -** by selectExpander() but the type and collation information was omitted -** at that point because identifiers had not yet been resolved. This -** routine is called after identifier resolution. +** by selectExpander() but the type and collation and affinity information +** was omitted at that point because identifiers had not yet been resolved. +** This routine is called after identifier resolution. */ static void selectAddSubqueryTypeInfo(Walker *pWalker, Select *p){ Parse *pParse; @@ -140101,10 +148103,11 @@ static void selectAddSubqueryTypeInfo(Walker *pWalker, Select *p){ SrcList *pTabList; SrcItem *pFrom; - assert( p->selFlags & SF_Resolved ); if( p->selFlags & SF_HasTypeInfo ) return; p->selFlags |= SF_HasTypeInfo; pParse = pWalker->pParse; + testcase( (p->selFlags & SF_Resolved)==0 ); + assert( (p->selFlags & SF_Resolved) || IN_RENAME_OBJECT ); pTabList = p->pSrc; for(i=0, pFrom=pTabList->a; i<pTabList->nSrc; i++, pFrom++){ Table *pTab = pFrom->pTab; @@ -140113,9 +148116,7 @@ static void selectAddSubqueryTypeInfo(Walker *pWalker, Select *p){ /* A sub-query in the FROM clause of a SELECT */ Select *pSel = pFrom->pSelect; if( pSel ){ - while( pSel->pPrior ) pSel = pSel->pPrior; - sqlite3SelectAddColumnTypeAndCollation(pParse, pTab, pSel, - SQLITE_AFF_NONE); + sqlite3SubqueryColumnTypes(pParse, pTab, pSel, SQLITE_AFF_NONE); } } } @@ -140170,6 +148171,184 @@ SQLITE_PRIVATE void sqlite3SelectPrep( sqlite3SelectAddTypeInfo(pParse, p); } +#if TREETRACE_ENABLED +/* +** Display all information about an AggInfo object +*/ +static void printAggInfo(AggInfo *pAggInfo){ + int ii; + for(ii=0; ii<pAggInfo->nColumn; ii++){ + struct AggInfo_col *pCol = &pAggInfo->aCol[ii]; + sqlite3DebugPrintf( + "agg-column[%d] pTab=%s iTable=%d iColumn=%d iMem=%d" + " iSorterColumn=%d %s\n", + ii, pCol->pTab ? pCol->pTab->zName : "NULL", + pCol->iTable, pCol->iColumn, pAggInfo->iFirstReg+ii, + pCol->iSorterColumn, + ii>=pAggInfo->nAccumulator ? "" : " Accumulator"); + sqlite3TreeViewExpr(0, pAggInfo->aCol[ii].pCExpr, 0); + } + for(ii=0; ii<pAggInfo->nFunc; ii++){ + sqlite3DebugPrintf("agg-func[%d]: iMem=%d\n", + ii, pAggInfo->iFirstReg+pAggInfo->nColumn+ii); + sqlite3TreeViewExpr(0, pAggInfo->aFunc[ii].pFExpr, 0); + } +} +#endif /* TREETRACE_ENABLED */ + +/* +** Analyze the arguments to aggregate functions. Create new pAggInfo->aCol[] +** entries for columns that are arguments to aggregate functions but which +** are not otherwise used. +** +** The aCol[] entries in AggInfo prior to nAccumulator are columns that +** are referenced outside of aggregate functions. These might be columns +** that are part of the GROUP by clause, for example. Other database engines +** would throw an error if there is a column reference that is not in the +** GROUP BY clause and that is not part of an aggregate function argument. +** But SQLite allows this. +** +** The aCol[] entries beginning with the aCol[nAccumulator] and following +** are column references that are used exclusively as arguments to +** aggregate functions. This routine is responsible for computing +** (or recomputing) those aCol[] entries. +*/ +static void analyzeAggFuncArgs( + AggInfo *pAggInfo, + NameContext *pNC +){ + int i; + assert( pAggInfo!=0 ); + assert( pAggInfo->iFirstReg==0 ); + pNC->ncFlags |= NC_InAggFunc; + for(i=0; i<pAggInfo->nFunc; i++){ + Expr *pExpr = pAggInfo->aFunc[i].pFExpr; + assert( pExpr->op==TK_FUNCTION || pExpr->op==TK_AGG_FUNCTION ); + assert( ExprUseXList(pExpr) ); + sqlite3ExprAnalyzeAggList(pNC, pExpr->x.pList); + if( pExpr->pLeft ){ + assert( pExpr->pLeft->op==TK_ORDER ); + assert( ExprUseXList(pExpr->pLeft) ); + sqlite3ExprAnalyzeAggList(pNC, pExpr->pLeft->x.pList); + } +#ifndef SQLITE_OMIT_WINDOWFUNC + assert( !IsWindowFunc(pExpr) ); + if( ExprHasProperty(pExpr, EP_WinFunc) ){ + sqlite3ExprAnalyzeAggregates(pNC, pExpr->y.pWin->pFilter); + } +#endif + } + pNC->ncFlags &= ~NC_InAggFunc; +} + +/* +** An index on expressions is being used in the inner loop of an +** aggregate query with a GROUP BY clause. This routine attempts +** to adjust the AggInfo object to take advantage of index and to +** perhaps use the index as a covering index. +** +*/ +static void optimizeAggregateUseOfIndexedExpr( + Parse *pParse, /* Parsing context */ + Select *pSelect, /* The SELECT statement being processed */ + AggInfo *pAggInfo, /* The aggregate info */ + NameContext *pNC /* Name context used to resolve agg-func args */ +){ + assert( pAggInfo->iFirstReg==0 ); + assert( pSelect!=0 ); + assert( pSelect->pGroupBy!=0 ); + pAggInfo->nColumn = pAggInfo->nAccumulator; + if( ALWAYS(pAggInfo->nSortingColumn>0) ){ + int mx = pSelect->pGroupBy->nExpr - 1; + int j, k; + for(j=0; j<pAggInfo->nColumn; j++){ + k = pAggInfo->aCol[j].iSorterColumn; + if( k>mx ) mx = k; + } + pAggInfo->nSortingColumn = mx+1; + } + analyzeAggFuncArgs(pAggInfo, pNC); +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x20 ){ + IndexedExpr *pIEpr; + TREETRACE(0x20, pParse, pSelect, + ("AggInfo (possibly) adjusted for Indexed Exprs\n")); + sqlite3TreeViewSelect(0, pSelect, 0); + for(pIEpr=pParse->pIdxEpr; pIEpr; pIEpr=pIEpr->pIENext){ + printf("data-cursor=%d index={%d,%d}\n", + pIEpr->iDataCur, pIEpr->iIdxCur, pIEpr->iIdxCol); + sqlite3TreeViewExpr(0, pIEpr->pExpr, 0); + } + printAggInfo(pAggInfo); + } +#else + UNUSED_PARAMETER(pSelect); + UNUSED_PARAMETER(pParse); +#endif +} + +/* +** Walker callback for aggregateConvertIndexedExprRefToColumn(). +*/ +static int aggregateIdxEprRefToColCallback(Walker *pWalker, Expr *pExpr){ + AggInfo *pAggInfo; + struct AggInfo_col *pCol; + UNUSED_PARAMETER(pWalker); + if( pExpr->pAggInfo==0 ) return WRC_Continue; + if( pExpr->op==TK_AGG_COLUMN ) return WRC_Continue; + if( pExpr->op==TK_AGG_FUNCTION ) return WRC_Continue; + if( pExpr->op==TK_IF_NULL_ROW ) return WRC_Continue; + pAggInfo = pExpr->pAggInfo; + if( NEVER(pExpr->iAgg>=pAggInfo->nColumn) ) return WRC_Continue; + assert( pExpr->iAgg>=0 ); + pCol = &pAggInfo->aCol[pExpr->iAgg]; + pExpr->op = TK_AGG_COLUMN; + pExpr->iTable = pCol->iTable; + pExpr->iColumn = pCol->iColumn; + ExprClearProperty(pExpr, EP_Skip|EP_Collate|EP_Unlikely); + return WRC_Prune; +} + +/* +** Convert every pAggInfo->aFunc[].pExpr such that any node within +** those expressions that has pAppInfo set is changed into a TK_AGG_COLUMN +** opcode. +*/ +static void aggregateConvertIndexedExprRefToColumn(AggInfo *pAggInfo){ + int i; + Walker w; + memset(&w, 0, sizeof(w)); + w.xExprCallback = aggregateIdxEprRefToColCallback; + for(i=0; i<pAggInfo->nFunc; i++){ + sqlite3WalkExpr(&w, pAggInfo->aFunc[i].pFExpr); + } +} + + +/* +** Allocate a block of registers so that there is one register for each +** pAggInfo->aCol[] and pAggInfo->aFunc[] entry in pAggInfo. The first +** register in this block is stored in pAggInfo->iFirstReg. +** +** This routine may only be called once for each AggInfo object. Prior +** to calling this routine: +** +** * The aCol[] and aFunc[] arrays may be modified +** * The AggInfoColumnReg() and AggInfoFuncReg() macros may not be used +** +** After calling this routine: +** +** * The aCol[] and aFunc[] arrays are fixed +** * The AggInfoColumnReg() and AggInfoFuncReg() macros may be used +** +*/ +static void assignAggregateRegisters(Parse *pParse, AggInfo *pAggInfo){ + assert( pAggInfo!=0 ); + assert( pAggInfo->iFirstReg==0 ); + pAggInfo->iFirstReg = pParse->nMem + 1; + pParse->nMem += pAggInfo->nColumn + pAggInfo->nFunc; +} + /* ** Reset the aggregate accumulator. ** @@ -140183,24 +148362,13 @@ static void resetAccumulator(Parse *pParse, AggInfo *pAggInfo){ int i; struct AggInfo_func *pFunc; int nReg = pAggInfo->nFunc + pAggInfo->nColumn; + assert( pAggInfo->iFirstReg>0 ); assert( pParse->db->pParse==pParse ); assert( pParse->db->mallocFailed==0 || pParse->nErr!=0 ); if( nReg==0 ) return; if( pParse->nErr ) return; -#ifdef SQLITE_DEBUG - /* Verify that all AggInfo registers are within the range specified by - ** AggInfo.mnReg..AggInfo.mxReg */ - assert( nReg==pAggInfo->mxReg-pAggInfo->mnReg+1 ); - for(i=0; i<pAggInfo->nColumn; i++){ - assert( pAggInfo->aCol[i].iMem>=pAggInfo->mnReg - && pAggInfo->aCol[i].iMem<=pAggInfo->mxReg ); - } - for(i=0; i<pAggInfo->nFunc; i++){ - assert( pAggInfo->aFunc[i].iMem>=pAggInfo->mnReg - && pAggInfo->aFunc[i].iMem<=pAggInfo->mxReg ); - } -#endif - sqlite3VdbeAddOp3(v, OP_Null, 0, pAggInfo->mnReg, pAggInfo->mxReg); + sqlite3VdbeAddOp3(v, OP_Null, 0, pAggInfo->iFirstReg, + pAggInfo->iFirstReg+nReg-1); for(pFunc=pAggInfo->aFunc, i=0; i<pAggInfo->nFunc; i++, pFunc++){ if( pFunc->iDistinct>=0 ){ Expr *pE = pFunc->pFExpr; @@ -140217,6 +148385,36 @@ static void resetAccumulator(Parse *pParse, AggInfo *pAggInfo){ pFunc->pFunc->zName)); } } + if( pFunc->iOBTab>=0 ){ + ExprList *pOBList; + KeyInfo *pKeyInfo; + int nExtra = 0; + assert( pFunc->pFExpr->pLeft!=0 ); + assert( pFunc->pFExpr->pLeft->op==TK_ORDER ); + assert( ExprUseXList(pFunc->pFExpr->pLeft) ); + assert( pFunc->pFunc!=0 ); + pOBList = pFunc->pFExpr->pLeft->x.pList; + if( !pFunc->bOBUnique ){ + nExtra++; /* One extra column for the OP_Sequence */ + } + if( pFunc->bOBPayload ){ + /* extra columns for the function arguments */ + assert( ExprUseXList(pFunc->pFExpr) ); + nExtra += pFunc->pFExpr->x.pList->nExpr; + } + if( pFunc->bUseSubtype ){ + nExtra += pFunc->pFExpr->x.pList->nExpr; + } + pKeyInfo = sqlite3KeyInfoFromExprList(pParse, pOBList, 0, nExtra); + if( !pFunc->bOBUnique && pParse->nErr==0 ){ + pKeyInfo->nKeyField++; + } + sqlite3VdbeAddOp4(v, OP_OpenEphemeral, + pFunc->iOBTab, pOBList->nExpr+nExtra, 0, + (char*)pKeyInfo, P4_KEYINFO); + ExplainQueryPlan((pParse, 0, "USE TEMP B-TREE FOR %s(ORDER BY)", + pFunc->pFunc->zName)); + } } } @@ -140232,20 +148430,71 @@ static void finalizeAggFunctions(Parse *pParse, AggInfo *pAggInfo){ ExprList *pList; assert( ExprUseXList(pF->pFExpr) ); pList = pF->pFExpr->x.pList; - sqlite3VdbeAddOp2(v, OP_AggFinal, pF->iMem, pList ? pList->nExpr : 0); + if( pF->iOBTab>=0 ){ + /* For an ORDER BY aggregate, calls to OP_AggStep were deferred. Inputs + ** were stored in emphermal table pF->iOBTab. Here, we extract those + ** inputs (in ORDER BY order) and make all calls to OP_AggStep + ** before doing the OP_AggFinal call. */ + int iTop; /* Start of loop for extracting columns */ + int nArg; /* Number of columns to extract */ + int nKey; /* Key columns to be skipped */ + int regAgg; /* Extract into this array */ + int j; /* Loop counter */ + + assert( pF->pFunc!=0 ); + nArg = pList->nExpr; + regAgg = sqlite3GetTempRange(pParse, nArg); + + if( pF->bOBPayload==0 ){ + nKey = 0; + }else{ + assert( pF->pFExpr->pLeft!=0 ); + assert( ExprUseXList(pF->pFExpr->pLeft) ); + assert( pF->pFExpr->pLeft->x.pList!=0 ); + nKey = pF->pFExpr->pLeft->x.pList->nExpr; + if( ALWAYS(!pF->bOBUnique) ) nKey++; + } + iTop = sqlite3VdbeAddOp1(v, OP_Rewind, pF->iOBTab); VdbeCoverage(v); + for(j=nArg-1; j>=0; j--){ + sqlite3VdbeAddOp3(v, OP_Column, pF->iOBTab, nKey+j, regAgg+j); + } + if( pF->bUseSubtype ){ + int regSubtype = sqlite3GetTempReg(pParse); + int iBaseCol = nKey + nArg + (pF->bOBPayload==0 && pF->bOBUnique==0); + for(j=nArg-1; j>=0; j--){ + sqlite3VdbeAddOp3(v, OP_Column, pF->iOBTab, iBaseCol+j, regSubtype); + sqlite3VdbeAddOp2(v, OP_SetSubtype, regSubtype, regAgg+j); + } + sqlite3ReleaseTempReg(pParse, regSubtype); + } + sqlite3VdbeAddOp3(v, OP_AggStep, 0, regAgg, AggInfoFuncReg(pAggInfo,i)); + sqlite3VdbeAppendP4(v, pF->pFunc, P4_FUNCDEF); + sqlite3VdbeChangeP5(v, (u8)nArg); + sqlite3VdbeAddOp2(v, OP_Next, pF->iOBTab, iTop+1); VdbeCoverage(v); + sqlite3VdbeJumpHere(v, iTop); + sqlite3ReleaseTempRange(pParse, regAgg, nArg); + } + sqlite3VdbeAddOp2(v, OP_AggFinal, AggInfoFuncReg(pAggInfo,i), + pList ? pList->nExpr : 0); sqlite3VdbeAppendP4(v, pF->pFunc, P4_FUNCDEF); } } - /* -** Update the accumulator memory cells for an aggregate based on -** the current cursor position. +** Generate code that will update the accumulator memory cells for an +** aggregate based on the current cursor position. ** ** If regAcc is non-zero and there are no min() or max() aggregates ** in pAggInfo, then only populate the pAggInfo->nAccumulator accumulator ** registers if register regAcc contains 0. The caller will take care ** of setting and clearing regAcc. +** +** For an ORDER BY aggregate, the actual accumulator memory cell update +** is deferred until after all input rows have been received, so that they +** can be run in the requested order. In that case, instead of invoking +** OP_AggStep to update the accumulator, just add the arguments that would +** have been passed into OP_AggStep into the sorting ephemeral table +** (along with the appropriate sort key). */ static void updateAccumulator( Parse *pParse, @@ -140260,14 +148509,19 @@ static void updateAccumulator( struct AggInfo_func *pF; struct AggInfo_col *pC; + assert( pAggInfo->iFirstReg>0 ); + if( pParse->nErr ) return; pAggInfo->directMode = 1; for(i=0, pF=pAggInfo->aFunc; i<pAggInfo->nFunc; i++, pF++){ int nArg; int addrNext = 0; int regAgg; + int regAggSz = 0; + int regDistinct = 0; ExprList *pList; assert( ExprUseXList(pF->pFExpr) ); assert( !IsWindowFunc(pF->pFExpr) ); + assert( pF->pFunc!=0 ); pList = pF->pFExpr->x.pList; if( ExprHasProperty(pF->pFExpr, EP_WinFunc) ){ Expr *pFilter = pF->pFExpr->y.pWin->pFilter; @@ -140291,9 +148545,55 @@ static void updateAccumulator( addrNext = sqlite3VdbeMakeLabel(pParse); sqlite3ExprIfFalse(pParse, pFilter, addrNext, SQLITE_JUMPIFNULL); } - if( pList ){ + if( pF->iOBTab>=0 ){ + /* Instead of invoking AggStep, we must push the arguments that would + ** have been passed to AggStep onto the sorting table. */ + int jj; /* Registered used so far in building the record */ + ExprList *pOBList; /* The ORDER BY clause */ + assert( pList!=0 ); + nArg = pList->nExpr; + assert( nArg>0 ); + assert( pF->pFExpr->pLeft!=0 ); + assert( pF->pFExpr->pLeft->op==TK_ORDER ); + assert( ExprUseXList(pF->pFExpr->pLeft) ); + pOBList = pF->pFExpr->pLeft->x.pList; + assert( pOBList!=0 ); + assert( pOBList->nExpr>0 ); + regAggSz = pOBList->nExpr; + if( !pF->bOBUnique ){ + regAggSz++; /* One register for OP_Sequence */ + } + if( pF->bOBPayload ){ + regAggSz += nArg; + } + if( pF->bUseSubtype ){ + regAggSz += nArg; + } + regAggSz++; /* One extra register to hold result of MakeRecord */ + regAgg = sqlite3GetTempRange(pParse, regAggSz); + regDistinct = regAgg; + sqlite3ExprCodeExprList(pParse, pOBList, regAgg, 0, SQLITE_ECEL_DUP); + jj = pOBList->nExpr; + if( !pF->bOBUnique ){ + sqlite3VdbeAddOp2(v, OP_Sequence, pF->iOBTab, regAgg+jj); + jj++; + } + if( pF->bOBPayload ){ + regDistinct = regAgg+jj; + sqlite3ExprCodeExprList(pParse, pList, regDistinct, 0, SQLITE_ECEL_DUP); + jj += nArg; + } + if( pF->bUseSubtype ){ + int kk; + int regBase = pF->bOBPayload ? regDistinct : regAgg; + for(kk=0; kk<nArg; kk++, jj++){ + sqlite3VdbeAddOp2(v, OP_GetSubtype, regBase+kk, regAgg+jj); + } + } + }else if( pList ){ nArg = pList->nExpr; regAgg = sqlite3GetTempRange(pParse, nArg); + regDistinct = regAgg; sqlite3ExprCodeExprList(pParse, pList, regAgg, 0, SQLITE_ECEL_DUP); }else{ nArg = 0; @@ -140304,26 +148604,37 @@ static void updateAccumulator( addrNext = sqlite3VdbeMakeLabel(pParse); } pF->iDistinct = codeDistinct(pParse, eDistinctType, - pF->iDistinct, addrNext, pList, regAgg); - } - if( pF->pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL ){ - CollSeq *pColl = 0; - struct ExprList_item *pItem; - int j; - assert( pList!=0 ); /* pList!=0 if pF->pFunc has NEEDCOLL */ - for(j=0, pItem=pList->a; !pColl && j<nArg; j++, pItem++){ - pColl = sqlite3ExprCollSeq(pParse, pItem->pExpr); - } - if( !pColl ){ - pColl = pParse->db->pDfltColl; + pF->iDistinct, addrNext, pList, regDistinct); + } + if( pF->iOBTab>=0 ){ + /* Insert a new record into the ORDER BY table */ + sqlite3VdbeAddOp3(v, OP_MakeRecord, regAgg, regAggSz-1, + regAgg+regAggSz-1); + sqlite3VdbeAddOp4Int(v, OP_IdxInsert, pF->iOBTab, regAgg+regAggSz-1, + regAgg, regAggSz-1); + sqlite3ReleaseTempRange(pParse, regAgg, regAggSz); + }else{ + /* Invoke the AggStep function */ + if( pF->pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL ){ + CollSeq *pColl = 0; + struct ExprList_item *pItem; + int j; + assert( pList!=0 ); /* pList!=0 if pF->pFunc has NEEDCOLL */ + for(j=0, pItem=pList->a; !pColl && j<nArg; j++, pItem++){ + pColl = sqlite3ExprCollSeq(pParse, pItem->pExpr); + } + if( !pColl ){ + pColl = pParse->db->pDfltColl; + } + if( regHit==0 && pAggInfo->nAccumulator ) regHit = ++pParse->nMem; + sqlite3VdbeAddOp4(v, OP_CollSeq, regHit, 0, 0, + (char *)pColl, P4_COLLSEQ); } - if( regHit==0 && pAggInfo->nAccumulator ) regHit = ++pParse->nMem; - sqlite3VdbeAddOp4(v, OP_CollSeq, regHit, 0, 0, (char *)pColl, P4_COLLSEQ); + sqlite3VdbeAddOp3(v, OP_AggStep, 0, regAgg, AggInfoFuncReg(pAggInfo,i)); + sqlite3VdbeAppendP4(v, pF->pFunc, P4_FUNCDEF); + sqlite3VdbeChangeP5(v, (u8)nArg); + sqlite3ReleaseTempRange(pParse, regAgg, nArg); } - sqlite3VdbeAddOp3(v, OP_AggStep, 0, regAgg, pF->iMem); - sqlite3VdbeAppendP4(v, pF->pFunc, P4_FUNCDEF); - sqlite3VdbeChangeP5(v, (u8)nArg); - sqlite3ReleaseTempRange(pParse, regAgg, nArg); if( addrNext ){ sqlite3VdbeResolveLabel(v, addrNext); } @@ -140335,7 +148646,7 @@ static void updateAccumulator( addrHitTest = sqlite3VdbeAddOp1(v, OP_If, regHit); VdbeCoverage(v); } for(i=0, pC=pAggInfo->aCol; i<pAggInfo->nAccumulator; i++, pC++){ - sqlite3ExprCode(pParse, pC->pCExpr, pC->iMem); + sqlite3ExprCode(pParse, pC->pCExpr, AggInfoColumnReg(pAggInfo,i)); } pAggInfo->directMode = 0; @@ -140429,28 +148740,33 @@ static void havingToWhere(Parse *pParse, Select *p){ sWalker.xExprCallback = havingToWhereExprCb; sWalker.u.pSelect = p; sqlite3WalkExpr(&sWalker, p->pHaving); -#if SELECTTRACE_ENABLED - if( sWalker.eCode && (sqlite3SelectTrace & 0x100)!=0 ){ - SELECTTRACE(0x100,pParse,p,("Move HAVING terms into WHERE:\n")); +#if TREETRACE_ENABLED + if( sWalker.eCode && (sqlite3TreeTrace & 0x100)!=0 ){ + TREETRACE(0x100,pParse,p,("Move HAVING terms into WHERE:\n")); sqlite3TreeViewSelect(0, p, 0); } #endif } /* -** Check to see if the pThis entry of pTabList is a self-join of a prior view. -** If it is, then return the SrcList_item for the prior view. If it is not, -** then return 0. +** Check to see if the pThis entry of pTabList is a self-join of another view. +** Search FROM-clause entries in the range of iFirst..iEnd, including iFirst +** but stopping before iEnd. +** +** If pThis is a self-join, then return the SrcItem for the first other +** instance of that view found. If pThis is not a self-join then return 0. */ static SrcItem *isSelfJoinView( SrcList *pTabList, /* Search for self-joins in this FROM clause */ - SrcItem *pThis /* Search for prior reference to this subquery */ + SrcItem *pThis, /* Search for prior reference to this subquery */ + int iFirst, int iEnd /* Range of FROM-clause entries to search. */ ){ SrcItem *pItem; assert( pThis->pSelect!=0 ); if( pThis->pSelect->selFlags & SF_PushDown ) return 0; - for(pItem = pTabList->a; pItem<pThis; pItem++){ + while( iFirst<iEnd ){ Select *pS1; + pItem = &pTabList->a[iFirst++]; if( pItem->pSelect==0 ) continue; if( pItem->fg.viaCoroutine ) continue; if( pItem->zName==0 ) continue; @@ -140477,13 +148793,13 @@ static SrcItem *isSelfJoinView( /* ** Deallocate a single AggInfo object */ -static void agginfoFree(sqlite3 *db, AggInfo *p){ +static void agginfoFree(sqlite3 *db, void *pArg){ + AggInfo *p = (AggInfo*)pArg; sqlite3DbFree(db, p->aCol); sqlite3DbFree(db, p->aFunc); sqlite3DbFreeNN(db, p); } -#ifdef SQLITE_COUNTOFVIEW_OPTIMIZATION /* ** Attempt to transform a query of the form ** @@ -140511,7 +148827,9 @@ static int countOfViewOptimization(Parse *pParse, Select *p){ if( (p->selFlags & SF_Aggregate)==0 ) return 0; /* This is an aggregate */ if( p->pEList->nExpr!=1 ) return 0; /* Single result column */ if( p->pWhere ) return 0; + if( p->pHaving ) return 0; if( p->pGroupBy ) return 0; + if( p->pOrderBy ) return 0; pExpr = p->pEList->a[0].pExpr; if( pExpr->op!=TK_AGG_FUNCTION ) return 0; /* Result is an aggregate */ assert( ExprUseUToken(pExpr) ); @@ -140519,15 +148837,18 @@ static int countOfViewOptimization(Parse *pParse, Select *p){ assert( ExprUseXList(pExpr) ); if( pExpr->x.pList!=0 ) return 0; /* Must be count(*) */ if( p->pSrc->nSrc!=1 ) return 0; /* One table in FROM */ + if( ExprHasProperty(pExpr, EP_WinFunc) ) return 0;/* Not a window function */ pSub = p->pSrc->a[0].pSelect; if( pSub==0 ) return 0; /* The FROM is a subquery */ - if( pSub->pPrior==0 ) return 0; /* Must be a compound ry */ + if( pSub->pPrior==0 ) return 0; /* Must be a compound */ + if( pSub->selFlags & SF_CopyCte ) return 0; /* Not a CTE */ do{ if( pSub->op!=TK_ALL && pSub->pPrior ) return 0; /* Must be UNION ALL */ if( pSub->pWhere ) return 0; /* No WHERE clause */ if( pSub->pLimit ) return 0; /* No LIMIT clause */ if( pSub->selFlags & SF_Aggregate ) return 0; /* Not an aggregate */ - pSub = pSub->pPrior; /* Repeat over compound */ + assert( pSub->pHaving==0 ); /* Due to the previous */ + pSub = pSub->pPrior; /* Repeat over compound */ }while( pSub ); /* If we reach this point then it is OK to perform the transformation */ @@ -140547,7 +148868,7 @@ static int countOfViewOptimization(Parse *pParse, Select *p){ pSub->selFlags |= SF_Aggregate; pSub->selFlags &= ~SF_Compound; pSub->nSelectRow = 0; - sqlite3ExprListDelete(db, pSub->pEList); + sqlite3ParserAddCleanup(pParse, sqlite3ExprListDeleteGeneric, pSub->pEList); pTerm = pPrior ? sqlite3ExprDup(db, pCount, 0) : pCount; pSub->pEList = sqlite3ExprListAppend(pParse, 0, pTerm); pTerm = sqlite3PExpr(pParse, TK_SELECT, 0, 0); @@ -140562,15 +148883,99 @@ static int countOfViewOptimization(Parse *pParse, Select *p){ p->pEList->a[0].pExpr = pExpr; p->selFlags &= ~SF_Aggregate; -#if SELECTTRACE_ENABLED - if( sqlite3SelectTrace & 0x400 ){ - SELECTTRACE(0x400,pParse,p,("After count-of-view optimization:\n")); +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x200 ){ + TREETRACE(0x200,pParse,p,("After count-of-view optimization:\n")); sqlite3TreeViewSelect(0, p, 0); } #endif return 1; } -#endif /* SQLITE_COUNTOFVIEW_OPTIMIZATION */ + +/* +** If any term of pSrc, or any SF_NestedFrom sub-query, is not the same +** as pSrcItem but has the same alias as p0, then return true. +** Otherwise return false. +*/ +static int sameSrcAlias(SrcItem *p0, SrcList *pSrc){ + int i; + for(i=0; i<pSrc->nSrc; i++){ + SrcItem *p1 = &pSrc->a[i]; + if( p1==p0 ) continue; + if( p0->pTab==p1->pTab && 0==sqlite3_stricmp(p0->zAlias, p1->zAlias) ){ + return 1; + } + if( p1->pSelect + && (p1->pSelect->selFlags & SF_NestedFrom)!=0 + && sameSrcAlias(p0, p1->pSelect->pSrc) + ){ + return 1; + } + } + return 0; +} + +/* +** Return TRUE (non-zero) if the i-th entry in the pTabList SrcList can +** be implemented as a co-routine. The i-th entry is guaranteed to be +** a subquery. +** +** The subquery is implemented as a co-routine if all of the following are +** true: +** +** (1) The subquery will likely be implemented in the outer loop of +** the query. This will be the case if any one of the following +** conditions hold: +** (a) The subquery is the only term in the FROM clause +** (b) The subquery is the left-most term and a CROSS JOIN or similar +** requires it to be the outer loop +** (c) All of the following are true: +** (i) The subquery is the left-most subquery in the FROM clause +** (ii) There is nothing that would prevent the subquery from +** being used as the outer loop if the sqlite3WhereBegin() +** routine nominates it to that position. +** (iii) The query is not a UPDATE ... FROM +** (2) The subquery is not a CTE that should be materialized because +** (a) the AS MATERIALIZED keyword is used, or +** (b) the CTE is used multiple times and does not have the +** NOT MATERIALIZED keyword +** (3) The subquery is not part of a left operand for a RIGHT JOIN +** (4) The SQLITE_Coroutine optimization disable flag is not set +** (5) The subquery is not self-joined +*/ +static int fromClauseTermCanBeCoroutine( + Parse *pParse, /* Parsing context */ + SrcList *pTabList, /* FROM clause */ + int i, /* Which term of the FROM clause holds the subquery */ + int selFlags /* Flags on the SELECT statement */ +){ + SrcItem *pItem = &pTabList->a[i]; + if( pItem->fg.isCte ){ + const CteUse *pCteUse = pItem->u2.pCteUse; + if( pCteUse->eM10d==M10d_Yes ) return 0; /* (2a) */ + if( pCteUse->nUse>=2 && pCteUse->eM10d!=M10d_No ) return 0; /* (2b) */ + } + if( pTabList->a[0].fg.jointype & JT_LTORJ ) return 0; /* (3) */ + if( OptimizationDisabled(pParse->db, SQLITE_Coroutines) ) return 0; /* (4) */ + if( isSelfJoinView(pTabList, pItem, i+1, pTabList->nSrc)!=0 ){ + return 0; /* (5) */ + } + if( i==0 ){ + if( pTabList->nSrc==1 ) return 1; /* (1a) */ + if( pTabList->a[1].fg.jointype & JT_CROSS ) return 1; /* (1b) */ + if( selFlags & SF_UpdateFrom ) return 0; /* (1c-iii) */ + return 1; + } + if( selFlags & SF_UpdateFrom ) return 0; /* (1c-iii) */ + while( 1 /*exit-by-break*/ ){ + if( pItem->fg.jointype & (JT_OUTER|JT_CROSS) ) return 0; /* (1c-ii) */ + if( i==0 ) break; + i--; + pItem--; + if( pItem->pSelect!=0 ) return 0; /* (1c-i) */ + } + return 1; +} /* ** Generate code for the SELECT statement given in the p argument. @@ -140616,10 +149021,14 @@ SQLITE_PRIVATE int sqlite3Select( } assert( db->mallocFailed==0 ); if( sqlite3AuthCheck(pParse, SQLITE_SELECT, 0, 0, 0) ) return 1; -#if SELECTTRACE_ENABLED - SELECTTRACE(1,pParse,p, ("begin processing:\n", pParse->addrExplain)); - if( sqlite3SelectTrace & 0x100 ){ - sqlite3TreeViewSelect(0, p, 0); +#if TREETRACE_ENABLED + TREETRACE(0x1,pParse,p, ("begin processing:\n", pParse->addrExplain)); + if( sqlite3TreeTrace & 0x10000 ){ + if( (sqlite3TreeTrace & 0x10001)==0x10000 ){ + sqlite3TreeViewLine(0, "In sqlite3Select() at %s:%d", + __FILE__, __LINE__); + } + sqlite3ShowSelect(p); } #endif @@ -140633,15 +149042,14 @@ SQLITE_PRIVATE int sqlite3Select( pDest->eDest==SRT_DistQueue || pDest->eDest==SRT_DistFifo ); /* All of these destinations are also able to ignore the ORDER BY clause */ if( p->pOrderBy ){ -#if SELECTTRACE_ENABLED - SELECTTRACE(1,pParse,p, ("dropping superfluous ORDER BY:\n")); - if( sqlite3SelectTrace & 0x100 ){ +#if TREETRACE_ENABLED + TREETRACE(0x800,pParse,p, ("dropping superfluous ORDER BY:\n")); + if( sqlite3TreeTrace & 0x800 ){ sqlite3TreeViewExprList(0, p->pOrderBy, 0, "ORDERBY"); } #endif - sqlite3ParserAddCleanup(pParse, - (void(*)(sqlite3*,void*))sqlite3ExprListDelete, - p->pOrderBy); + sqlite3ParserAddCleanup(pParse, sqlite3ExprListDeleteGeneric, + p->pOrderBy); testcase( pParse->earlyCleanup ); p->pOrderBy = 0; } @@ -140654,9 +149062,9 @@ SQLITE_PRIVATE int sqlite3Select( } assert( db->mallocFailed==0 ); assert( p->pEList!=0 ); -#if SELECTTRACE_ENABLED - if( sqlite3SelectTrace & 0x104 ){ - SELECTTRACE(0x104,pParse,p, ("after name resolution:\n")); +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x10 ){ + TREETRACE(0x10,pParse,p, ("after name resolution:\n")); sqlite3TreeViewSelect(0, p, 0); } #endif @@ -140672,15 +149080,12 @@ SQLITE_PRIVATE int sqlite3Select( ** disallow it altogether. */ if( p->selFlags & SF_UFSrcCheck ){ SrcItem *p0 = &p->pSrc->a[0]; - for(i=1; i<p->pSrc->nSrc; i++){ - SrcItem *p1 = &p->pSrc->a[i]; - if( p0->pTab==p1->pTab && 0==sqlite3_stricmp(p0->zAlias, p1->zAlias) ){ - sqlite3ErrorMsg(pParse, - "target object/alias may not appear in FROM clause: %s", - p0->zAlias ? p0->zAlias : p0->pTab->zName - ); - goto select_end; - } + if( sameSrcAlias(p0, p->pSrc) ){ + sqlite3ErrorMsg(pParse, + "target object/alias may not appear in FROM clause: %s", + p0->zAlias ? p0->zAlias : p0->pTab->zName + ); + goto select_end; } /* Clear the SF_UFSrcCheck flag. The check has already been performed, @@ -140699,9 +149104,9 @@ SQLITE_PRIVATE int sqlite3Select( assert( pParse->nErr ); goto select_end; } -#if SELECTTRACE_ENABLED - if( p->pWin && (sqlite3SelectTrace & 0x108)!=0 ){ - SELECTTRACE(0x104,pParse,p, ("after window rewrite:\n")); +#if TREETRACE_ENABLED + if( p->pWin && (sqlite3TreeTrace & 0x40)!=0 ){ + TREETRACE(0x40,pParse,p, ("after window rewrite:\n")); sqlite3TreeViewSelect(0, p, 0); } #endif @@ -140725,20 +149130,58 @@ SQLITE_PRIVATE int sqlite3Select( ** to a real table */ assert( pTab!=0 ); - /* Convert LEFT JOIN into JOIN if there are terms of the right table - ** of the LEFT JOIN used in the WHERE clause. + /* Try to simplify joins: + ** + ** LEFT JOIN -> JOIN + ** RIGHT JOIN -> JOIN + ** FULL JOIN -> RIGHT JOIN + ** + ** If terms of the i-th table are used in the WHERE clause in such a + ** way that the i-th table cannot be the NULL row of a join, then + ** perform the appropriate simplification. This is called + ** "OUTER JOIN strength reduction" in the SQLite documentation. */ - if( (pItem->fg.jointype & JT_LEFT)!=0 - && sqlite3ExprImpliesNonNullRow(p->pWhere, pItem->iCursor) + if( (pItem->fg.jointype & (JT_LEFT|JT_LTORJ))!=0 + && sqlite3ExprImpliesNonNullRow(p->pWhere, pItem->iCursor, + pItem->fg.jointype & JT_LTORJ) && OptimizationEnabled(db, SQLITE_SimplifyJoin) ){ - SELECTTRACE(0x100,pParse,p, - ("LEFT-JOIN simplifies to JOIN on term %d\n",i)); - pItem->fg.jointype &= ~(JT_LEFT|JT_OUTER); - unsetJoinExpr(p->pWhere, pItem->iCursor); + if( pItem->fg.jointype & JT_LEFT ){ + if( pItem->fg.jointype & JT_RIGHT ){ + TREETRACE(0x1000,pParse,p, + ("FULL-JOIN simplifies to RIGHT-JOIN on term %d\n",i)); + pItem->fg.jointype &= ~JT_LEFT; + }else{ + TREETRACE(0x1000,pParse,p, + ("LEFT-JOIN simplifies to JOIN on term %d\n",i)); + pItem->fg.jointype &= ~(JT_LEFT|JT_OUTER); + unsetJoinExpr(p->pWhere, pItem->iCursor, 0); + } + } + if( pItem->fg.jointype & JT_LTORJ ){ + for(j=i+1; j<pTabList->nSrc; j++){ + SrcItem *pI2 = &pTabList->a[j]; + if( pI2->fg.jointype & JT_RIGHT ){ + if( pI2->fg.jointype & JT_LEFT ){ + TREETRACE(0x1000,pParse,p, + ("FULL-JOIN simplifies to LEFT-JOIN on term %d\n",j)); + pI2->fg.jointype &= ~JT_RIGHT; + }else{ + TREETRACE(0x1000,pParse,p, + ("RIGHT-JOIN simplifies to JOIN on term %d\n",j)); + pI2->fg.jointype &= ~(JT_RIGHT|JT_OUTER); + unsetJoinExpr(p->pWhere, pI2->iCursor, 1); + } + } + } + for(j=pTabList->nSrc-1; j>=0; j--){ + pTabList->a[j].fg.jointype &= ~JT_LTORJ; + if( pTabList->a[j].fg.jointype & JT_RIGHT ) break; + } + } } - /* No futher action if this term of the FROM clause is no a subquery */ + /* No further action if this term of the FROM clause is not a subquery */ if( pSub==0 ) continue; /* Catch mismatch in the declared columns of a view and the number of @@ -140749,6 +149192,14 @@ SQLITE_PRIVATE int sqlite3Select( goto select_end; } + /* Do not attempt the usual optimizations (flattening and ORDER BY + ** elimination) on a MATERIALIZED common table expression because + ** a MATERIALIZED common table expression is an optimization fence. + */ + if( pItem->fg.isCte && pItem->u2.pCteUse->eM10d==M10d_Yes ){ + continue; + } + /* Do not try to flatten an aggregate subquery. ** ** Flattening an aggregate subquery is only possible if the outer query @@ -140778,6 +149229,8 @@ SQLITE_PRIVATE int sqlite3Select( ** (a) The outer query has a different ORDER BY clause ** (b) The subquery is part of a join ** See forum post 062d576715d277c8 + ** + ** Also retain the ORDER BY if the OmitOrderBy optimization is disabled. */ if( pSub->pOrderBy!=0 && (p->pOrderBy!=0 || pTabList->nSrc>1) /* Condition (5) */ @@ -140786,9 +149239,10 @@ SQLITE_PRIVATE int sqlite3Select( && (p->selFlags & SF_OrderByReqd)==0 /* Condition (3) and (4) */ && OptimizationEnabled(db, SQLITE_OmitOrderBy) ){ - SELECTTRACE(0x100,pParse,p, + TREETRACE(0x800,pParse,p, ("omit superfluous ORDER BY on %r FROM-clause subquery\n",i+1)); - sqlite3ExprListDelete(db, pSub->pOrderBy); + sqlite3ParserAddCleanup(pParse, sqlite3ExprListDeleteGeneric, + pSub->pOrderBy); pSub->pOrderBy = 0; } @@ -140814,7 +149268,7 @@ SQLITE_PRIVATE int sqlite3Select( && i==0 && (p->selFlags & SF_ComplexResult)!=0 && (pTabList->nSrc==1 - || (pTabList->a[1].fg.jointype&(JT_LEFT|JT_CROSS))!=0) + || (pTabList->a[1].fg.jointype&(JT_OUTER|JT_CROSS))!=0) ){ continue; } @@ -140838,9 +149292,9 @@ SQLITE_PRIVATE int sqlite3Select( */ if( p->pPrior ){ rc = multiSelect(pParse, p, pDest); -#if SELECTTRACE_ENABLED - SELECTTRACE(0x1,pParse,p,("end compound-select processing\n")); - if( (sqlite3SelectTrace & 0x2000)!=0 && ExplainQueryPlanParent(pParse)==0 ){ +#if TREETRACE_ENABLED + TREETRACE(0x400,pParse,p,("end compound-select processing\n")); + if( (sqlite3TreeTrace & 0x400)!=0 && ExplainQueryPlanParent(pParse)==0 ){ sqlite3TreeViewSelect(0, p, 0); } #endif @@ -140859,25 +149313,22 @@ SQLITE_PRIVATE int sqlite3Select( && OptimizationEnabled(db, SQLITE_PropagateConst) && propagateConstants(pParse, p) ){ -#if SELECTTRACE_ENABLED - if( sqlite3SelectTrace & 0x100 ){ - SELECTTRACE(0x100,pParse,p,("After constant propagation:\n")); +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x2000 ){ + TREETRACE(0x2000,pParse,p,("After constant propagation:\n")); sqlite3TreeViewSelect(0, p, 0); } #endif }else{ - SELECTTRACE(0x100,pParse,p,("Constant propagation not helpful\n")); + TREETRACE(0x2000,pParse,p,("Constant propagation not helpful\n")); } -#ifdef SQLITE_COUNTOFVIEW_OPTIMIZATION if( OptimizationEnabled(db, SQLITE_QueryFlattener|SQLITE_CountOfView) && countOfViewOptimization(pParse, p) ){ if( db->mallocFailed ) goto select_end; - pEList = p->pEList; pTabList = p->pSrc; } -#endif /* For each term in the FROM clause, do two things: ** (1) Authorized unreferenced tables @@ -140936,38 +149387,42 @@ SQLITE_PRIVATE int sqlite3Select( if( OptimizationEnabled(db, SQLITE_PushDown) && (pItem->fg.isCte==0 || (pItem->u2.pCteUse->eM10d!=M10d_Yes && pItem->u2.pCteUse->nUse<2)) - && pushDownWhereTerms(pParse, pSub, p->pWhere, pItem) + && pushDownWhereTerms(pParse, pSub, p->pWhere, pTabList, i) ){ -#if SELECTTRACE_ENABLED - if( sqlite3SelectTrace & 0x100 ){ - SELECTTRACE(0x100,pParse,p, +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x4000 ){ + TREETRACE(0x4000,pParse,p, ("After WHERE-clause push-down into subquery %d:\n", pSub->selId)); sqlite3TreeViewSelect(0, p, 0); } #endif assert( pItem->pSelect && (pItem->pSelect->selFlags & SF_PushDown)!=0 ); }else{ - SELECTTRACE(0x100,pParse,p,("Push-down not possible\n")); + TREETRACE(0x4000,pParse,p,("Push-down not possible\n")); + } + + /* Convert unused result columns of the subquery into simple NULL + ** expressions, to avoid unneeded searching and computation. + */ + if( OptimizationEnabled(db, SQLITE_NullUnusedCols) + && disableUnusedSubqueryResultColumns(pItem) + ){ +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x4000 ){ + TREETRACE(0x4000,pParse,p, + ("Change unused result columns to NULL for subquery %d:\n", + pSub->selId)); + sqlite3TreeViewSelect(0, p, 0); + } +#endif } zSavedAuthContext = pParse->zAuthContext; pParse->zAuthContext = pItem->zName; /* Generate code to implement the subquery - ** - ** The subquery is implemented as a co-routine if: - ** (1) the subquery is guaranteed to be the outer loop (so that - ** it does not need to be computed more than once), and - ** (2) the subquery is not a CTE that should be materialized - ** - ** TODO: Are there other reasons beside (1) and (2) to use a co-routine - ** implementation? */ - if( i==0 - && (pTabList->nSrc==1 - || (pTabList->a[1].fg.jointype&(JT_LEFT|JT_CROSS))!=0) /* (1) */ - && (pItem->fg.isCte==0 || pItem->u2.pCteUse->eM10d!=M10d_Yes) /* (2) */ - ){ + if( fromClauseTermCanBeCoroutine(pParse, pTabList, i, p->selFlags) ){ /* Implement a co-routine that will return a single row of the result ** set on each invocation. */ @@ -140989,7 +149444,7 @@ SQLITE_PRIVATE int sqlite3Select( }else if( pItem->fg.isCte && pItem->u2.pCteUse->addrM9e>0 ){ /* This is a CTE for which materialization code has already been ** generated. Invoke the subroutine to compute the materialization, - ** the make the pItem->iCursor be a copy of the ephemerial table that + ** the make the pItem->iCursor be a copy of the ephemeral table that ** holds the result of the materialization. */ CteUse *pCteUse = pItem->u2.pCteUse; sqlite3VdbeAddOp2(v, OP_Gosub, pCteUse->regRtn, pCteUse->addrM9e); @@ -140998,7 +149453,7 @@ SQLITE_PRIVATE int sqlite3Select( VdbeComment((v, "%!S", pItem)); } pSub->nSelectRow = pCteUse->nRowEst; - }else if( (pPrior = isSelfJoinView(pTabList, pItem))!=0 ){ + }else if( (pPrior = isSelfJoinView(pTabList, pItem, 0, i))!=0 ){ /* This view has already been materialized by a prior entry in ** this same FROM clause. Reuse it. */ if( pPrior->addrFillSub ){ @@ -141012,11 +149467,14 @@ SQLITE_PRIVATE int sqlite3Select( ** the same view can reuse the materialization. */ int topAddr; int onceAddr = 0; - int retAddr; +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS + int addrExplain; +#endif pItem->regReturn = ++pParse->nMem; - topAddr = sqlite3VdbeAddOp2(v, OP_Integer, 0, pItem->regReturn); + topAddr = sqlite3VdbeAddOp0(v, OP_Goto); pItem->addrFillSub = topAddr+1; + pItem->fg.isMaterialized = 1; if( pItem->fg.isCorrelated==0 ){ /* If the subquery is not correlated and if we are not inside of ** a trigger, then we only need to compute the value of the subquery @@ -141027,13 +149485,15 @@ SQLITE_PRIVATE int sqlite3Select( VdbeNoopComment((v, "materialize %!S", pItem)); } sqlite3SelectDestInit(&dest, SRT_EphemTab, pItem->iCursor); - ExplainQueryPlan((pParse, 1, "MATERIALIZE %!S", pItem)); + + ExplainQueryPlan2(addrExplain, (pParse, 1, "MATERIALIZE %!S", pItem)); sqlite3Select(pParse, pSub, &dest); pItem->pTab->nRowLogEst = pSub->nSelectRow; if( onceAddr ) sqlite3VdbeJumpHere(v, onceAddr); - retAddr = sqlite3VdbeAddOp1(v, OP_Return, pItem->regReturn); + sqlite3VdbeAddOp2(v, OP_Return, pItem->regReturn, topAddr+1); VdbeComment((v, "end %!S", pItem)); - sqlite3VdbeChangeP1(v, topAddr, retAddr); + sqlite3VdbeScanStatusRange(v, addrExplain, addrExplain, -1); + sqlite3VdbeJumpHere(v, topAddr); sqlite3ClearTempRegCache(pParse); if( pItem->fg.isCte && pItem->fg.isCorrelated==0 ){ CteUse *pCteUse = pItem->u2.pCteUse; @@ -141057,9 +149517,9 @@ SQLITE_PRIVATE int sqlite3Select( pHaving = p->pHaving; sDistinct.isTnct = (p->selFlags & SF_Distinct)!=0; -#if SELECTTRACE_ENABLED - if( sqlite3SelectTrace & 0x400 ){ - SELECTTRACE(0x400,pParse,p,("After all FROM-clause analysis:\n")); +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x8000 ){ + TREETRACE(0x8000,pParse,p,("After all FROM-clause analysis:\n")); sqlite3TreeViewSelect(0, p, 0); } #endif @@ -141092,10 +149552,11 @@ SQLITE_PRIVATE int sqlite3Select( ** the sDistinct.isTnct is still set. Hence, isTnct represents the ** original setting of the SF_Distinct flag, not the current setting */ assert( sDistinct.isTnct ); + sDistinct.isTnct = 2; -#if SELECTTRACE_ENABLED - if( sqlite3SelectTrace & 0x400 ){ - SELECTTRACE(0x400,pParse,p,("Transform DISTINCT into GROUP BY:\n")); +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x20000 ){ + TREETRACE(0x20000,pParse,p,("Transform DISTINCT into GROUP BY:\n")); sqlite3TreeViewSelect(0, p, 0); } #endif @@ -141127,6 +149588,18 @@ SQLITE_PRIVATE int sqlite3Select( */ if( pDest->eDest==SRT_EphemTab ){ sqlite3VdbeAddOp2(v, OP_OpenEphemeral, pDest->iSDParm, pEList->nExpr); + if( p->selFlags & SF_NestedFrom ){ + /* Delete or NULL-out result columns that will never be used */ + int ii; + for(ii=pEList->nExpr-1; ii>0 && pEList->a[ii].fg.bUsed==0; ii--){ + sqlite3ExprDelete(db, pEList->a[ii].pExpr); + sqlite3DbFree(db, pEList->a[ii].zEName); + pEList->nExpr--; + } + for(ii=0; ii<pEList->nExpr; ii++){ + if( pEList->a[ii].fg.bUsed==0 ) pEList->a[ii].pExpr->op = TK_NULL; + } + } } /* Set the limiter. @@ -141135,7 +149608,7 @@ SQLITE_PRIVATE int sqlite3Select( if( (p->selFlags & SF_FixedLimit)==0 ){ p->nSelectRow = 320; /* 4 billion rows */ } - computeLimitRegisters(pParse, p, iEnd); + if( p->pLimit ) computeLimitRegisters(pParse, p, iEnd); if( p->iLimit==0 && sSort.addrSortIndex>=0 ){ sqlite3VdbeChangeOpcode(v, sSort.addrSortIndex, OP_SorterOpen); sSort.sortFlags |= SORTFLAG_UseSorter; @@ -141169,7 +149642,7 @@ SQLITE_PRIVATE int sqlite3Select( /* Begin the database scan. */ - SELECTTRACE(1,pParse,p,("WhereBegin\n")); + TREETRACE(0x2,pParse,p,("WhereBegin\n")); pWInfo = sqlite3WhereBegin(pParse, pTabList, pWhere, sSort.pOrderBy, p->pEList, p, wctrlFlags, p->nSelectRow); if( pWInfo==0 ) goto select_end; @@ -141186,7 +149659,7 @@ SQLITE_PRIVATE int sqlite3Select( sSort.pOrderBy = 0; } } - SELECTTRACE(1,pParse,p,("WhereBegin returns\n")); + TREETRACE(0x2,pParse,p,("WhereBegin returns\n")); /* If sorting index that was created by a prior OP_OpenEphemeral ** instruction ended up not being needed, then change the OP_OpenEphemeral @@ -141225,7 +149698,7 @@ SQLITE_PRIVATE int sqlite3Select( /* End the database scan loop. */ - SELECTTRACE(1,pParse,p,("WhereEnd\n")); + TREETRACE(0x2,pParse,p,("WhereEnd\n")); sqlite3WhereEnd(pWInfo); } }else{ @@ -141276,8 +149749,9 @@ SQLITE_PRIVATE int sqlite3Select( ** ORDER BY to maximize the chances of rows being delivered in an ** order that makes the ORDER BY redundant. */ for(ii=0; ii<pGroupBy->nExpr; ii++){ - u8 sortFlags = sSort.pOrderBy->a[ii].sortFlags & KEYINFO_ORDER_DESC; - pGroupBy->a[ii].sortFlags = sortFlags; + u8 sortFlags; + sortFlags = sSort.pOrderBy->a[ii].fg.sortFlags & KEYINFO_ORDER_DESC; + pGroupBy->a[ii].fg.sortFlags = sortFlags; } if( sqlite3ExprListCompare(pGroupBy, sSort.pOrderBy, -1)==0 ){ orderByGrp = 1; @@ -141297,20 +149771,21 @@ SQLITE_PRIVATE int sqlite3Select( */ pAggInfo = sqlite3DbMallocZero(db, sizeof(*pAggInfo) ); if( pAggInfo ){ - sqlite3ParserAddCleanup(pParse, - (void(*)(sqlite3*,void*))agginfoFree, pAggInfo); + sqlite3ParserAddCleanup(pParse, agginfoFree, pAggInfo); testcase( pParse->earlyCleanup ); } if( db->mallocFailed ){ goto select_end; } pAggInfo->selId = p->selId; +#ifdef SQLITE_DEBUG + pAggInfo->pSelect = p; +#endif memset(&sNC, 0, sizeof(sNC)); sNC.pParse = pParse; sNC.pSrcList = pTabList; sNC.uNC.pAggInfo = pAggInfo; VVA_ONLY( sNC.ncFlags = NC_UAggInfo; ) - pAggInfo->mnReg = pParse->nMem+1; pAggInfo->nSortingColumn = pGroupBy ? pGroupBy->nExpr : 0; pAggInfo->pGroupBy = pGroupBy; sqlite3ExprAnalyzeAggList(&sNC, pEList); @@ -141331,40 +149806,17 @@ SQLITE_PRIVATE int sqlite3Select( }else{ minMaxFlag = WHERE_ORDERBY_NORMAL; } - for(i=0; i<pAggInfo->nFunc; i++){ - Expr *pExpr = pAggInfo->aFunc[i].pFExpr; - assert( ExprUseXList(pExpr) ); - sNC.ncFlags |= NC_InAggFunc; - sqlite3ExprAnalyzeAggList(&sNC, pExpr->x.pList); -#ifndef SQLITE_OMIT_WINDOWFUNC - assert( !IsWindowFunc(pExpr) ); - if( ExprHasProperty(pExpr, EP_WinFunc) ){ - sqlite3ExprAnalyzeAggregates(&sNC, pExpr->y.pWin->pFilter); - } -#endif - sNC.ncFlags &= ~NC_InAggFunc; - } - pAggInfo->mxReg = pParse->nMem; + analyzeAggFuncArgs(pAggInfo, &sNC); if( db->mallocFailed ) goto select_end; -#if SELECTTRACE_ENABLED - if( sqlite3SelectTrace & 0x400 ){ - int ii; - SELECTTRACE(0x400,pParse,p,("After aggregate analysis %p:\n", pAggInfo)); +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x20 ){ + TREETRACE(0x20,pParse,p,("After aggregate analysis %p:\n", pAggInfo)); sqlite3TreeViewSelect(0, p, 0); if( minMaxFlag ){ sqlite3DebugPrintf("MIN/MAX Optimization (0x%02x) adds:\n", minMaxFlag); sqlite3TreeViewExprList(0, pMinMaxOrderBy, 0, "ORDERBY"); } - for(ii=0; ii<pAggInfo->nColumn; ii++){ - sqlite3DebugPrintf("agg-column[%d] iMem=%d\n", - ii, pAggInfo->aCol[ii].iMem); - sqlite3TreeViewExpr(0, pAggInfo->aCol[ii].pCExpr, 0); - } - for(ii=0; ii<pAggInfo->nFunc; ii++){ - sqlite3DebugPrintf("agg-func[%d]: iMem=%d\n", - ii, pAggInfo->aFunc[ii].iMem); - sqlite3TreeViewExpr(0, pAggInfo->aFunc[ii].pFExpr, 0); - } + printAggInfo(pAggInfo); } #endif @@ -141374,7 +149826,7 @@ SQLITE_PRIVATE int sqlite3Select( */ if( pGroupBy ){ KeyInfo *pKeyInfo; /* Keying information for the group by clause */ - int addr1; /* A-vs-B comparision jump */ + int addr1; /* A-vs-B comparison jump */ int addrOutputRow; /* Start of subroutine that outputs a result row */ int regOutputRow; /* Return address register for output subroutine */ int addrSetAbort; /* Set the abort flag and return */ @@ -141433,16 +149885,21 @@ SQLITE_PRIVATE int sqlite3Select( ** in the right order to begin with. */ sqlite3VdbeAddOp2(v, OP_Gosub, regReset, addrReset); - SELECTTRACE(1,pParse,p,("WhereBegin\n")); + TREETRACE(0x2,pParse,p,("WhereBegin\n")); pWInfo = sqlite3WhereBegin(pParse, pTabList, pWhere, pGroupBy, pDistinct, - 0, (WHERE_GROUPBY|(orderByGrp ? WHERE_SORTBYGROUP : 0)|distFlag), 0 + p, (sDistinct.isTnct==2 ? WHERE_DISTINCTBY : WHERE_GROUPBY) + | (orderByGrp ? WHERE_SORTBYGROUP : 0) | distFlag, 0 ); if( pWInfo==0 ){ sqlite3ExprListDelete(db, pDistinct); goto select_end; } + if( pParse->pIdxEpr ){ + optimizeAggregateUseOfIndexedExpr(pParse, p, pAggInfo, &sNC); + } + assignAggregateRegisters(pParse, pAggInfo); eDist = sqlite3WhereIsDistinct(pWInfo); - SELECTTRACE(1,pParse,p,("WhereBegin returns\n")); + TREETRACE(0x2,pParse,p,("WhereBegin returns\n")); if( sqlite3WhereIsOrdered(pWInfo)==pGroupBy->nExpr ){ /* The optimizer is able to deliver rows in group by order so ** we do not have to sort. The OP_OpenEphemeral table will be @@ -141460,9 +149917,13 @@ SQLITE_PRIVATE int sqlite3Select( int nCol; int nGroupBy; - explainTempTable(pParse, +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS + int addrExp; /* Address of OP_Explain instruction */ +#endif + ExplainQueryPlan2(addrExp, (pParse, 0, "USE TEMP B-TREE FOR %s", (sDistinct.isTnct && (p->selFlags&SF_Distinct)==0) ? - "DISTINCT" : "GROUP BY"); + "DISTINCT" : "GROUP BY" + )); groupBySort = 1; nGroupBy = pGroupBy->nExpr; @@ -141477,28 +149938,50 @@ SQLITE_PRIVATE int sqlite3Select( regBase = sqlite3GetTempRange(pParse, nCol); sqlite3ExprCodeExprList(pParse, pGroupBy, regBase, 0, 0); j = nGroupBy; + pAggInfo->directMode = 1; for(i=0; i<pAggInfo->nColumn; i++){ struct AggInfo_col *pCol = &pAggInfo->aCol[i]; if( pCol->iSorterColumn>=j ){ - int r1 = j + regBase; - sqlite3ExprCodeGetColumnOfTable(v, - pCol->pTab, pCol->iTable, pCol->iColumn, r1); + sqlite3ExprCode(pParse, pCol->pCExpr, j + regBase); j++; } } + pAggInfo->directMode = 0; regRecord = sqlite3GetTempReg(pParse); + sqlite3VdbeScanStatusCounters(v, addrExp, 0, sqlite3VdbeCurrentAddr(v)); sqlite3VdbeAddOp3(v, OP_MakeRecord, regBase, nCol, regRecord); sqlite3VdbeAddOp2(v, OP_SorterInsert, pAggInfo->sortingIdx, regRecord); + sqlite3VdbeScanStatusRange(v, addrExp, sqlite3VdbeCurrentAddr(v)-2, -1); sqlite3ReleaseTempReg(pParse, regRecord); sqlite3ReleaseTempRange(pParse, regBase, nCol); - SELECTTRACE(1,pParse,p,("WhereEnd\n")); + TREETRACE(0x2,pParse,p,("WhereEnd\n")); sqlite3WhereEnd(pWInfo); pAggInfo->sortingIdxPTab = sortPTab = pParse->nTab++; sortOut = sqlite3GetTempReg(pParse); + sqlite3VdbeScanStatusCounters(v, addrExp, sqlite3VdbeCurrentAddr(v), 0); sqlite3VdbeAddOp3(v, OP_OpenPseudo, sortPTab, sortOut, nCol); sqlite3VdbeAddOp2(v, OP_SorterSort, pAggInfo->sortingIdx, addrEnd); VdbeComment((v, "GROUP BY sort")); VdbeCoverage(v); pAggInfo->useSortingIdx = 1; + sqlite3VdbeScanStatusRange(v, addrExp, -1, sortPTab); + sqlite3VdbeScanStatusRange(v, addrExp, -1, pAggInfo->sortingIdx); + } + + /* If there are entries in pAgggInfo->aFunc[] that contain subexpressions + ** that are indexed (and that were previously identified and tagged + ** in optimizeAggregateUseOfIndexedExpr()) then those subexpressions + ** must now be converted into a TK_AGG_COLUMN node so that the value + ** is correctly pulled from the index rather than being recomputed. */ + if( pParse->pIdxEpr ){ + aggregateConvertIndexedExprRefToColumn(pAggInfo); +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x20 ){ + TREETRACE(0x20, pParse, p, + ("AggInfo function expressions converted to reference index\n")); + sqlite3TreeViewSelect(0, p, 0); + printAggInfo(pAggInfo); + } +#endif } /* If the index or temporary table used by the GROUP BY sort @@ -141569,7 +150052,7 @@ SQLITE_PRIVATE int sqlite3Select( sqlite3VdbeAddOp2(v, OP_SorterNext, pAggInfo->sortingIdx,addrTopOfLoop); VdbeCoverage(v); }else{ - SELECTTRACE(1,pParse,p,("WhereEnd\n")); + TREETRACE(0x2,pParse,p,("WhereEnd\n")); sqlite3WhereEnd(pWInfo); sqlite3VdbeChangeToNoop(v, addrSortingIdx); } @@ -141617,7 +150100,7 @@ SQLITE_PRIVATE int sqlite3Select( VdbeComment((v, "indicate accumulator empty")); sqlite3VdbeAddOp1(v, OP_Return, regReset); - if( eDist!=WHERE_DISTINCT_NOOP ){ + if( distFlag!=0 && eDist!=WHERE_DISTINCT_NOOP ){ struct AggInfo_func *pF = &pAggInfo->aFunc[0]; fixDistinctOpenEph(pParse, eDist, pF->iDistinct, pF->iDistAddr); } @@ -141679,7 +150162,8 @@ SQLITE_PRIVATE int sqlite3Select( if( pKeyInfo ){ sqlite3VdbeChangeP4(v, -1, (char *)pKeyInfo, P4_KEYINFO); } - sqlite3VdbeAddOp2(v, OP_Count, iCsr, pAggInfo->aFunc[0].iMem); + assignAggregateRegisters(pParse, pAggInfo); + sqlite3VdbeAddOp2(v, OP_Count, iCsr, AggInfoFuncReg(pAggInfo,0)); sqlite3VdbeAddOp1(v, OP_Close, iCsr); explainSimpleCount(pParse, pTab, pBest); }else{ @@ -141715,6 +150199,7 @@ SQLITE_PRIVATE int sqlite3Select( pDistinct = pAggInfo->aFunc[0].pFExpr->x.pList; distFlag = pDistinct ? (WHERE_WANT_DISTINCT|WHERE_AGG_DISTINCT) : 0; } + assignAggregateRegisters(pParse, pAggInfo); /* This case runs if the aggregate has no GROUP BY clause. The ** processing is much simpler since there is only a single row @@ -141731,25 +150216,27 @@ SQLITE_PRIVATE int sqlite3Select( assert( minMaxFlag==WHERE_ORDERBY_NORMAL || pMinMaxOrderBy!=0 ); assert( pMinMaxOrderBy==0 || pMinMaxOrderBy->nExpr==1 ); - SELECTTRACE(1,pParse,p,("WhereBegin\n")); + TREETRACE(0x2,pParse,p,("WhereBegin\n")); pWInfo = sqlite3WhereBegin(pParse, pTabList, pWhere, pMinMaxOrderBy, - pDistinct, 0, minMaxFlag|distFlag, 0); + pDistinct, p, minMaxFlag|distFlag, 0); if( pWInfo==0 ){ goto select_end; } - SELECTTRACE(1,pParse,p,("WhereBegin returns\n")); + TREETRACE(0x2,pParse,p,("WhereBegin returns\n")); eDist = sqlite3WhereIsDistinct(pWInfo); updateAccumulator(pParse, regAcc, pAggInfo, eDist); if( eDist!=WHERE_DISTINCT_NOOP ){ - struct AggInfo_func *pF = &pAggInfo->aFunc[0]; - fixDistinctOpenEph(pParse, eDist, pF->iDistinct, pF->iDistAddr); + struct AggInfo_func *pF = pAggInfo->aFunc; + if( pF ){ + fixDistinctOpenEph(pParse, eDist, pF->iDistinct, pF->iDistAddr); + } } if( regAcc ) sqlite3VdbeAddOp2(v, OP_Integer, 1, regAcc); if( minMaxFlag ){ sqlite3WhereMinMaxOptEarlyOut(v, pWInfo); } - SELECTTRACE(1,pParse,p,("WhereEnd\n")); + TREETRACE(0x2,pParse,p,("WhereEnd\n")); sqlite3WhereEnd(pWInfo); finalizeAggFunctions(pParse, pAggInfo); } @@ -141771,8 +150258,6 @@ SQLITE_PRIVATE int sqlite3Select( ** and send them to the callback one by one. */ if( sSort.pOrderBy ){ - explainTempTable(pParse, - sSort.nOBSat>0 ? "RIGHT PART OF ORDER BY":"ORDER BY"); assert( p->pEList==pEList ); generateSortTail(pParse, p, &sSort, pEList->nExpr, pDest); } @@ -141796,7 +150281,7 @@ select_end: if( pAggInfo && !db->mallocFailed ){ for(i=0; i<pAggInfo->nColumn; i++){ Expr *pExpr = pAggInfo->aCol[i].pCExpr; - assert( pExpr!=0 ); + if( pExpr==0 ) continue; assert( pExpr->pAggInfo==pAggInfo ); assert( pExpr->iAgg==i ); } @@ -141809,9 +150294,9 @@ select_end: } #endif -#if SELECTTRACE_ENABLED - SELECTTRACE(0x1,pParse,p,("end processing\n")); - if( (sqlite3SelectTrace & 0x2000)!=0 && ExplainQueryPlanParent(pParse)==0 ){ +#if TREETRACE_ENABLED + TREETRACE(0x1,pParse,p,("end processing\n")); + if( (sqlite3TreeTrace & 0x40000)!=0 && ExplainQueryPlanParent(pParse)==0 ){ sqlite3TreeViewSelect(0, p, 0); } #endif @@ -142076,9 +150561,7 @@ SQLITE_PRIVATE Trigger *sqlite3TriggerList(Parse *pParse, Table *pTab){ Trigger *pList; /* List of triggers to return */ HashElem *p; /* Loop variable for TEMP triggers */ - if( pParse->disableTriggers ){ - return 0; - } + assert( pParse->disableTriggers==0 ); pTmpSchema = pParse->db->aDb[1].pSchema; p = sqliteHashFirst(&pTmpSchema->trigHash); pList = pTab->pTrigger; @@ -142087,15 +150570,14 @@ SQLITE_PRIVATE Trigger *sqlite3TriggerList(Parse *pParse, Table *pTab){ if( pTrig->pTabSchema==pTab->pSchema && pTrig->table && 0==sqlite3StrICmp(pTrig->table, pTab->zName) - && pTrig->pTabSchema!=pTmpSchema + && (pTrig->pTabSchema!=pTmpSchema || pTrig->bReturning) ){ pTrig->pNext = pList; pList = pTrig; - }else if( pTrig->op==TK_RETURNING + }else if( pTrig->op==TK_RETURNING ){ #ifndef SQLITE_OMIT_VIRTUALTABLE - && pParse->db->pVtabCtx==0 + assert( pParse->db->pVtabCtx==0 ); #endif - ){ assert( pParse->bReturning ); assert( &(pParse->u1.pReturning->retTrig) == pTrig ); pTrig->table = pTab->zName; @@ -142210,6 +150692,10 @@ SQLITE_PRIVATE void sqlite3BeginTrigger( sqlite3ErrorMsg(pParse, "cannot create triggers on virtual tables"); goto trigger_orphan_error; } + if( (pTab->tabFlags & TF_Shadow)!=0 && sqlite3ReadOnlyShadowTables(db) ){ + sqlite3ErrorMsg(pParse, "cannot create triggers on shadow tables"); + goto trigger_orphan_error; + } /* Check that the trigger name is not reserved and that no trigger of the ** specified name exists */ @@ -142229,6 +150715,7 @@ SQLITE_PRIVATE void sqlite3BeginTrigger( }else{ assert( !db->init.busy ); sqlite3CodeVerifySchema(pParse, iDb); + VVA_ONLY( pParse->ifNotExists = 1; ) } goto trigger_cleanup; } @@ -142378,6 +150865,23 @@ SQLITE_PRIVATE void sqlite3FinishTrigger( Vdbe *v; char *z; + /* If this is a new CREATE TABLE statement, and if shadow tables + ** are read-only, and the trigger makes a change to a shadow table, + ** then raise an error - do not allow the trigger to be created. */ + if( sqlite3ReadOnlyShadowTables(db) ){ + TriggerStep *pStep; + for(pStep=pTrig->step_list; pStep; pStep=pStep->pNext){ + if( pStep->zTarget!=0 + && sqlite3ShadowTableName(db, pStep->zTarget) + ){ + sqlite3ErrorMsg(pParse, + "trigger \"%s\" may not write to shadow table \"%s\"", + pTrig->zName, pStep->zTarget); + goto triggerfinish_cleanup; + } + } + } + /* Make an entry in the sqlite_schema table */ v = sqlite3GetVdbe(pParse); if( v==0 ) goto triggerfinish_cleanup; @@ -142541,7 +151045,7 @@ SQLITE_PRIVATE TriggerStep *sqlite3TriggerInsertStep( SQLITE_PRIVATE TriggerStep *sqlite3TriggerUpdateStep( Parse *pParse, /* Parser */ Token *pTableName, /* Name of the table to be updated */ - SrcList *pFrom, + SrcList *pFrom, /* FROM clause for an UPDATE-FROM, or NULL */ ExprList *pEList, /* The SET clause: list of column and new values */ Expr *pWhere, /* The WHERE clause */ u8 orconf, /* The conflict algorithm. (OE_Abort, OE_Ignore, etc) */ @@ -142755,12 +151259,21 @@ static int checkColumnOverlap(IdList *pIdList, ExprList *pEList){ } /* +** Return true if any TEMP triggers exist +*/ +static int tempTriggersExist(sqlite3 *db){ + if( NEVER(db->aDb[1].pSchema==0) ) return 0; + if( sqliteHashFirst(&db->aDb[1].pSchema->trigHash)==0 ) return 0; + return 1; +} + +/* ** Return a list of all triggers on table pTab if there exists at least ** one trigger that must be fired when an operation of type 'op' is ** performed on the table, and, if that operation is an UPDATE, if at ** least one of the columns in pChanges is being modified. */ -SQLITE_PRIVATE Trigger *sqlite3TriggersExist( +static SQLITE_NOINLINE Trigger *triggersReallyExist( Parse *pParse, /* Parse context */ Table *pTab, /* The table the contains the triggers */ int op, /* one of TK_DELETE, TK_INSERT, TK_UPDATE */ @@ -142823,6 +151336,22 @@ exit_triggers_exist: } return (mask ? pList : 0); } +SQLITE_PRIVATE Trigger *sqlite3TriggersExist( + Parse *pParse, /* Parse context */ + Table *pTab, /* The table the contains the triggers */ + int op, /* one of TK_DELETE, TK_INSERT, TK_UPDATE */ + ExprList *pChanges, /* Columns that change in an UPDATE statement */ + int *pMask /* OUT: Mask of TRIGGER_BEFORE|TRIGGER_AFTER */ +){ + assert( pTab!=0 ); + if( (pTab->pTrigger==0 && !tempTriggersExist(pParse->db)) + || pParse->disableTriggers + ){ + if( pMask ) *pMask = 0; + return 0; + } + return triggersReallyExist(pParse,pTab,op,pChanges,pMask); +} /* ** Convert the pStep->zTarget string into a SrcList and return a pointer @@ -142852,6 +151381,14 @@ SQLITE_PRIVATE SrcList *sqlite3TriggerStepSrc( } if( pStep->pFrom ){ SrcList *pDup = sqlite3SrcListDup(db, pStep->pFrom, 0); + if( pDup && pDup->nSrc>1 && !IN_RENAME_OBJECT ){ + Select *pSubquery; + Token as; + pSubquery = sqlite3SelectNew(pParse,0,pDup,0,0,0,0,SF_NestedFrom,0); + as.n = 0; + as.z = 0; + pDup = sqlite3SrcListAppendFromTerm(pParse,0,0,0,&as,pSubquery,0); + } pSrc = sqlite3SrcListAppendList(pParse, pSrc, pDup); } }else{ @@ -142907,7 +151444,7 @@ static ExprList *sqlite3ExpandReturning( if( !db->mallocFailed ){ struct ExprList_item *pItem = &pNew->a[pNew->nExpr-1]; pItem->zEName = sqlite3DbStrDup(db, pTab->aCol[jj].zCnName); - pItem->eEName = ENAME_NAME; + pItem->fg.eEName = ENAME_NAME; } } }else{ @@ -142916,7 +151453,7 @@ static ExprList *sqlite3ExpandReturning( if( !db->mallocFailed && ALWAYS(pList->a[i].zEName!=0) ){ struct ExprList_item *pItem = &pNew->a[pNew->nExpr-1]; pItem->zEName = sqlite3DbStrDup(db, pList->a[i].zEName); - pItem->eEName = pList->a[i].eEName; + pItem->fg.eEName = pList->a[i].fg.eEName; } } } @@ -142942,10 +151479,17 @@ static void codeReturningTrigger( SrcList sFrom; assert( v!=0 ); - assert( pParse->bReturning ); + if( !pParse->bReturning ){ + /* This RETURNING trigger must be for a different statement as + ** this statement lacks a RETURNING clause. */ + return; + } assert( db->pParse==pParse ); pReturning = pParse->u1.pReturning; - assert( pTrigger == &(pReturning->retTrig) ); + if( pTrigger != &(pReturning->retTrig) ){ + /* This RETURNING trigger is for a different statement */ + return; + } memset(&sSelect, 0, sizeof(sSelect)); memset(&sFrom, 0, sizeof(sFrom)); sSelect.pEList = sqlite3ExprListDup(db, pReturning->pReturnEL, 0); @@ -142960,7 +151504,7 @@ static void codeReturningTrigger( } sqlite3ExprListDelete(db, sSelect.pEList); pNew = sqlite3ExpandReturning(pParse, pReturning->pReturnEL, pTab); - if( !db->mallocFailed ){ + if( pParse->nErr==0 ){ NameContext sNC; memset(&sNC, 0, sizeof(sNC)); if( pReturning->nRetCol==0 ){ @@ -143168,7 +151712,7 @@ static TriggerPrg *codeRowTrigger( sSubParse.zAuthContext = pTrigger->zName; sSubParse.eTriggerOp = pTrigger->op; sSubParse.nQueryLoop = pParse->nQueryLoop; - sSubParse.disableVtab = pParse->disableVtab; + sSubParse.prepFlags = pParse->prepFlags; v = sqlite3GetVdbe(&sSubParse); if( v ){ @@ -143429,6 +151973,9 @@ SQLITE_PRIVATE u32 sqlite3TriggerColmask( Trigger *p; assert( isNew==1 || isNew==0 ); + if( IsView(pTab) ){ + return 0xffffffff; + } for(p=pTrigger; p; p=p->pNext){ if( p->op==op && (tr_tm&p->tr_tm) @@ -143514,11 +152061,14 @@ static void updateVirtualTable( ** it has been converted into REAL. */ SQLITE_PRIVATE void sqlite3ColumnDefault(Vdbe *v, Table *pTab, int i, int iReg){ + Column *pCol; assert( pTab!=0 ); - if( !IsView(pTab) ){ + assert( pTab->nCol>i ); + pCol = &pTab->aCol[i]; + if( pCol->iDflt ){ sqlite3_value *pValue = 0; u8 enc = ENC(sqlite3VdbeDb(v)); - Column *pCol = &pTab->aCol[i]; + assert( !IsView(pTab) ); VdbeComment((v, "%s.%s", pTab->zName, pCol->zCnName)); assert( i<pTab->nCol ); sqlite3ValueFromExpr(sqlite3VdbeDb(v), @@ -143529,7 +152079,7 @@ SQLITE_PRIVATE void sqlite3ColumnDefault(Vdbe *v, Table *pTab, int i, int iReg){ } } #ifndef SQLITE_OMIT_FLOATING_POINT - if( pTab->aCol[i].affinity==SQLITE_AFF_REAL && !IsVirtual(pTab) ){ + if( pCol->affinity==SQLITE_AFF_REAL && !IsVirtual(pTab) ){ sqlite3VdbeAddOp1(v, OP_RealAffinity, iReg); } #endif @@ -143676,7 +152226,7 @@ static void updateFromSelect( assert( pTabList->nSrc>1 ); if( pSrc ){ - pSrc->a[0].fg.notCte = 1; + assert( pSrc->a[0].fg.notCte ); pSrc->a[0].iCursor = -1; pSrc->a[0].pTab->nTabRef--; pSrc->a[0].pTab = 0; @@ -143715,7 +152265,8 @@ static void updateFromSelect( } } pSelect = sqlite3SelectNew(pParse, pList, - pSrc, pWhere2, pGrp, 0, pOrderBy2, SF_UFSrcCheck|SF_IncludeHidden, pLimit2 + pSrc, pWhere2, pGrp, 0, pOrderBy2, + SF_UFSrcCheck|SF_IncludeHidden|SF_UpdateFrom, pLimit2 ); if( pSelect ) pSelect->selFlags |= SF_OrderByReqd; sqlite3SelectDestInit(&dest, eDest, iEph); @@ -143831,6 +152382,14 @@ SQLITE_PRIVATE void sqlite3Update( # define isView 0 #endif +#if TREETRACE_ENABLED + if( sqlite3TreeTrace & 0x10000 ){ + sqlite3TreeViewLine(0, "In sqlite3Update() at %s:%d", __FILE__, __LINE__); + sqlite3TreeViewUpdate(pParse->pWith, pTabList, pChanges, pWhere, + onError, pOrderBy, pLimit, pUpsert, pTrigger); + } +#endif + /* If there was a FROM clause, set nChangeFrom to the number of expressions ** in the change-list. Otherwise, set it to 0. There cannot be a FROM ** clause if this function is being called to generate code for part of @@ -143851,7 +152410,7 @@ SQLITE_PRIVATE void sqlite3Update( if( sqlite3ViewGetColumnNames(pParse, pTab) ){ goto update_cleanup; } - if( sqlite3IsReadOnly(pParse, pTab, tmask) ){ + if( sqlite3IsReadOnly(pParse, pTab, pTrigger) ){ goto update_cleanup; } @@ -144170,12 +152729,22 @@ SQLITE_PRIVATE void sqlite3Update( /* Begin the database scan. ** ** Do not consider a single-pass strategy for a multi-row update if - ** there are any triggers or foreign keys to process, or rows may - ** be deleted as a result of REPLACE conflict handling. Any of these - ** things might disturb a cursor being used to scan through the table - ** or index, causing a single-pass approach to malfunction. */ + ** there is anything that might disrupt the cursor being used to do + ** the UPDATE: + ** (1) This is a nested UPDATE + ** (2) There are triggers + ** (3) There are FOREIGN KEY constraints + ** (4) There are REPLACE conflict handlers + ** (5) There are subqueries in the WHERE clause + */ flags = WHERE_ONEPASS_DESIRED; - if( !pParse->nested && !pTrigger && !hasFK && !chngKey && !bReplace ){ + if( !pParse->nested + && !pTrigger + && !hasFK + && !chngKey + && !bReplace + && (pWhere==0 || !ExprHasProperty(pWhere, EP_Subquery)) + ){ flags |= WHERE_ONEPASS_MULTIROW; } pWInfo = sqlite3WhereBegin(pParse, pTabList, pWhere,0,0,0,flags,iIdxCur); @@ -144246,6 +152815,8 @@ SQLITE_PRIVATE void sqlite3Update( if( !isView ){ int addrOnce = 0; + int iNotUsed1 = 0; + int iNotUsed2 = 0; /* Open every index that needs updating. */ if( eOnePass!=ONEPASS_OFF ){ @@ -144257,7 +152828,7 @@ SQLITE_PRIVATE void sqlite3Update( addrOnce = sqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v); } sqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite, 0, iBaseCur, - aToOpen, 0, 0); + aToOpen, &iNotUsed1, &iNotUsed2); if( addrOnce ){ sqlite3VdbeJumpHereOrPopInst(v, addrOnce); } @@ -144475,7 +153046,7 @@ SQLITE_PRIVATE void sqlite3Update( }else{ sqlite3VdbeAddOp3(v, OP_NotExists, iDataCur, labelContinue,regOldRowid); } - VdbeCoverageNeverTaken(v); + VdbeCoverage(v); } /* Do FK constraint checks. */ @@ -144548,8 +153119,10 @@ SQLITE_PRIVATE void sqlite3Update( sqlite3VdbeAddOp2(v, OP_AddImm, regRowCount, 1); } - sqlite3CodeRowTrigger(pParse, pTrigger, TK_UPDATE, pChanges, - TRIGGER_AFTER, pTab, regOldRowid, onError, labelContinue); + if( pTrigger ){ + sqlite3CodeRowTrigger(pParse, pTrigger, TK_UPDATE, pChanges, + TRIGGER_AFTER, pTab, regOldRowid, onError, labelContinue); + } /* Repeat the above with the next record to be updated, until ** all record selected by the WHERE clause have been updated. @@ -144644,7 +153217,7 @@ static void updateVirtualTable( int nArg = 2 + pTab->nCol; /* Number of arguments to VUpdate */ int regArg; /* First register in VUpdate arg array */ int regRec; /* Register in which to assemble record */ - int regRowid; /* Register for ephem table rowid */ + int regRowid; /* Register for ephemeral table rowid */ int iCsr = pSrc->a[0].iCursor; /* Cursor used for virtual table scan */ int aDummy[2]; /* Unused arg for sqlite3WhereOkOnePass() */ int eOnePass; /* True to use onepass strategy */ @@ -144688,7 +153261,9 @@ static void updateVirtualTable( sqlite3ExprDup(db, pChanges->a[aXRef[i]].pExpr, 0) ); }else{ - pList = sqlite3ExprListAppend(pParse, pList, exprRowColumn(pParse, i)); + Expr *pRowExpr = exprRowColumn(pParse, i); + if( pRowExpr ) pRowExpr->op2 = OPFLAG_NOCHNG; + pList = sqlite3ExprListAppend(pParse, pList, pRowExpr); } } @@ -144765,7 +153340,7 @@ static void updateVirtualTable( sqlite3WhereEnd(pWInfo); } - /* Begin scannning through the ephemeral table. */ + /* Begin scanning through the ephemeral table. */ addr = sqlite3VdbeAddOp1(v, OP_Rewind, ephemTab); VdbeCoverage(v); /* Extract arguments from the current row of the ephemeral table and @@ -144961,6 +153536,7 @@ SQLITE_PRIVATE int sqlite3UpsertAnalyzeTarget( if( pIdx->aiColumn[ii]==XN_EXPR ){ assert( pIdx->aColExpr!=0 ); assert( pIdx->aColExpr->nExpr>ii ); + assert( pIdx->bHasExpr ); pExpr = pIdx->aColExpr->a[ii].pExpr; if( pExpr->op!=TK_COLLATE ){ sCol[0].pLeft = pExpr; @@ -144972,7 +153548,7 @@ SQLITE_PRIVATE int sqlite3UpsertAnalyzeTarget( pExpr = &sCol[0]; } for(jj=0; jj<nn; jj++){ - if( sqlite3ExprCompare(pParse,pTarget->a[jj].pExpr,pExpr,iCursor)<2 ){ + if( sqlite3ExprCompare(0,pTarget->a[jj].pExpr,pExpr,iCursor)<2 ){ break; /* Column ii of the index matches column jj of target */ } } @@ -145274,6 +153850,7 @@ SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3RunVacuum( int nDb; /* Number of attached databases */ const char *zDbMain; /* Schema name of database to vacuum */ const char *zOut; /* Name of output file */ + u32 pgflags = PAGER_SYNCHRONOUS_OFF; /* sync flags for output db */ if( !db->autoCommit ){ sqlite3SetString(pzErrMsg, db, "cannot VACUUM from within a transaction"); @@ -145320,7 +153897,7 @@ SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3RunVacuum( ** (possibly synchronous) transaction opened on the main database before ** sqlite3BtreeCopyFile() is called. ** - ** An optimisation would be to use a non-journaled pager. + ** An optimization would be to use a non-journaled pager. ** (Later:) I tried setting "PRAGMA vacuum_db.journal_mode=OFF" but ** that actually made the VACUUM run slower. Very little journalling ** actually occurs when doing a vacuum since the vacuum_db is initially @@ -145345,12 +153922,17 @@ SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3RunVacuum( goto end_of_vacuum; } db->mDbFlags |= DBFLAG_VacuumInto; + + /* For a VACUUM INTO, the pager-flags are set to the same values as + ** they are for the database being vacuumed, except that PAGER_CACHESPILL + ** is always set. */ + pgflags = db->aDb[iDb].safety_level | (db->flags & PAGER_FLAGS_MASK); } nRes = sqlite3BtreeGetRequestedReserve(pMain); sqlite3BtreeSetCacheSize(pTemp, db->aDb[iDb].pSchema->cache_size); sqlite3BtreeSetSpillSize(pTemp, sqlite3BtreeSetSpillSize(pMain,0)); - sqlite3BtreeSetPagerFlags(pTemp, PAGER_SYNCHRONOUS_OFF|PAGER_CACHESPILL); + sqlite3BtreeSetPagerFlags(pTemp, pgflags|PAGER_CACHESPILL); /* Begin a transaction and take an exclusive lock on the main database ** file. This is done before the sqlite3BtreeGetPageSize(pMain) call below, @@ -145481,6 +154063,7 @@ SQLITE_PRIVATE SQLITE_NOINLINE int sqlite3RunVacuum( assert( rc==SQLITE_OK ); if( pOut==0 ){ + nRes = sqlite3BtreeGetRequestedReserve(pTemp); rc = sqlite3BtreeSetPageSize(pMain, sqlite3BtreeGetPageSize(pTemp), nRes,1); } @@ -145733,10 +154316,10 @@ SQLITE_PRIVATE void sqlite3VtabUnlock(VTable *pVTab){ pVTab->nRef--; if( pVTab->nRef==0 ){ sqlite3_vtab *p = pVTab->pVtab; - sqlite3VtabModuleUnref(pVTab->db, pVTab->pMod); if( p ){ p->pModule->xDisconnect(p); } + sqlite3VtabModuleUnref(pVTab->db, pVTab->pMod); sqlite3DbFree(db, pVTab); } } @@ -145837,7 +154420,6 @@ SQLITE_PRIVATE void sqlite3VtabUnlockList(sqlite3 *db){ if( p ){ db->pDisconnect = 0; - sqlite3ExpirePreparedStatements(db, 0); do { VTable *pNext = p->pNext; sqlite3VtabUnlock(p); @@ -145862,7 +154444,8 @@ SQLITE_PRIVATE void sqlite3VtabUnlockList(sqlite3 *db){ */ SQLITE_PRIVATE void sqlite3VtabClear(sqlite3 *db, Table *p){ assert( IsVirtual(p) ); - if( !db || db->pnBytesFreed==0 ) vtabDisconnectAll(0, p); + assert( db!=0 ); + if( db->pnBytesFreed==0 ) vtabDisconnectAll(0, p); if( p->u.vtab.azArg ){ int i; for(i=0; i<p->u.vtab.nArg; i++){ @@ -146002,7 +154585,7 @@ SQLITE_PRIVATE void sqlite3VtabFinishParse(Parse *pParse, Token *pEnd){ ** the information we've collected. ** ** The VM register number pParse->regRowid holds the rowid of an - ** entry in the sqlite_schema table tht was created for this vtab + ** entry in the sqlite_schema table that was created for this vtab ** by sqlite3StartTable(). */ iDb = sqlite3SchemaToIndex(db, pTab->pSchema); @@ -146131,7 +154714,9 @@ static int vtabCallConstructor( sCtx.pPrior = db->pVtabCtx; sCtx.bDeclared = 0; db->pVtabCtx = &sCtx; + pTab->nTabRef++; rc = xConstruct(db, pMod->pAux, nArg, azArg, &pVTable->pVtab, &zErr); + sqlite3DeleteTable(db, pTab); db->pVtabCtx = sCtx.pPrior; if( rc==SQLITE_NOMEM ) sqlite3OomFault(db); assert( sCtx.pTab==pTab ); @@ -146340,7 +154925,7 @@ SQLITE_API int sqlite3_declare_vtab(sqlite3 *db, const char *zCreateTable){ sqlite3_mutex_enter(db->mutex); pCtx = db->pVtabCtx; if( !pCtx || pCtx->bDeclared ){ - sqlite3Error(db, SQLITE_MISUSE); + sqlite3Error(db, SQLITE_MISUSE_BKPT); sqlite3_mutex_leave(db->mutex); return SQLITE_MISUSE_BKPT; } @@ -146621,7 +155206,10 @@ SQLITE_PRIVATE int sqlite3VtabSavepoint(sqlite3 *db, int op, int iSavepoint){ break; } if( xMethod && pVTab->iSavepoint>iSavepoint ){ + u64 savedFlags = (db->flags & SQLITE_Defensive); + db->flags &= ~(u64)SQLITE_Defensive; rc = xMethod(pVTab->pVtab, iSavepoint); + db->flags |= savedFlags; } sqlite3VtabUnlock(pVTab); } @@ -146662,7 +155250,7 @@ SQLITE_PRIVATE FuncDef *sqlite3VtabOverloadFunction( if( pExpr->op!=TK_COLUMN ) return pDef; assert( ExprUseYTab(pExpr) ); pTab = pExpr->y.pTab; - if( pTab==0 ) return pDef; + if( NEVER(pTab==0) ) return pDef; if( !IsVirtual(pTab) ) return pDef; pVtab = sqlite3GetVTable(db, pTab)->pVtab; assert( pVtab!=0 ); @@ -146741,7 +155329,7 @@ SQLITE_PRIVATE void sqlite3VtabMakeWritable(Parse *pParse, Table *pTab){ ** ** An eponymous virtual table instance is one that is named after its ** module, and more importantly, does not require a CREATE VIRTUAL TABLE -** statement in order to come into existance. Eponymous virtual table +** statement in order to come into existence. Eponymous virtual table ** instances always exist. They cannot be DROP-ed. ** ** Any virtual table module for which xConnect and xCreate are the same @@ -146850,6 +155438,10 @@ SQLITE_API int sqlite3_vtab_config(sqlite3 *db, int op, ...){ p->pVTable->eVtabRisk = SQLITE_VTABRISK_High; break; } + case SQLITE_VTAB_USES_ALL_SCHEMAS: { + p->pVTable->bAllSchemas = 1; + break; + } default: { rc = SQLITE_MISUSE_BKPT; break; @@ -146923,6 +155515,28 @@ typedef struct WhereLoopBuilder WhereLoopBuilder; typedef struct WhereScan WhereScan; typedef struct WhereOrCost WhereOrCost; typedef struct WhereOrSet WhereOrSet; +typedef struct WhereMemBlock WhereMemBlock; +typedef struct WhereRightJoin WhereRightJoin; + +/* +** This object is a header on a block of allocated memory that will be +** automatically freed when its WInfo object is destructed. +*/ +struct WhereMemBlock { + WhereMemBlock *pNext; /* Next block in the chain */ + u64 sz; /* Bytes of space */ +}; + +/* +** Extra information attached to a WhereLevel that is a RIGHT JOIN. +*/ +struct WhereRightJoin { + int iMatch; /* Cursor used to determine prior matched rows */ + int regBloom; /* Bloom filter for iRJMatch */ + int regReturn; /* Return register for the interior subroutine */ + int addrSubrtn; /* Starting address for the interior subroutine */ + int endSubrtn; /* The last opcode in the interior subroutine */ +}; /* ** This object contains information needed to implement a single nested @@ -146956,6 +155570,7 @@ struct WhereLevel { int addrLikeRep; /* LIKE range processing address */ #endif int regFilter; /* Bloom filter */ + WhereRightJoin *pRJ; /* Extra information for RIGHT JOIN */ u8 iFrom; /* Which entry in the FROM clause */ u8 op, p3, p5; /* Opcode, P3 & P5 of the opcode that ends the loop */ int p1, p2; /* Operands of the opcode used to end the loop */ @@ -146966,7 +155581,7 @@ struct WhereLevel { int iCur; /* The VDBE cursor used by this IN operator */ int addrInTop; /* Top of the IN loop */ int iBase; /* Base register of multi-key index record */ - int nPrefix; /* Number of prior entires in the key */ + int nPrefix; /* Number of prior entries in the key */ u8 eEndLoopOp; /* IN Loop terminator. OP_Next or OP_Prev */ } *aInLoop; /* Information about each nested IN operator */ } in; /* Used when pWLoop->wsFlags&WHERE_IN_ABLE */ @@ -147216,7 +155831,7 @@ struct WhereClause { int nTerm; /* Number of terms */ int nSlot; /* Number of entries in a[] */ int nBase; /* Number of terms through the last non-Virtual */ - WhereTerm *a; /* Each a[] describes a term of the WHERE cluase */ + WhereTerm *a; /* Each a[] describes a term of the WHERE clause */ #if defined(SQLITE_SMALL_STACK) WhereTerm aStatic[1]; /* Initial static space for a[] */ #else @@ -147246,7 +155861,7 @@ struct WhereAndInfo { ** between VDBE cursor numbers and bits of the bitmasks in WhereTerm. ** ** The VDBE cursor numbers are small integers contained in -** SrcList_item.iCursor and Expr.iTable fields. For any given WHERE +** SrcItem.iCursor and Expr.iTable fields. For any given WHERE ** clause, the cursor numbers might not begin with 0 and they might ** contain gaps in the numbering sequence. But we want to make maximum ** use of the bits in our bitmasks. This structure provides a mapping @@ -147318,20 +155933,6 @@ struct WhereLoopBuilder { #endif /* -** Each instance of this object records a change to a single node -** in an expression tree to cause that node to point to a column -** of an index rather than an expression or a virtual column. All -** such transformations need to be undone at the end of WHERE clause -** processing. -*/ -typedef struct WhereExprMod WhereExprMod; -struct WhereExprMod { - WhereExprMod *pNext; /* Next translation on a list of them all */ - Expr *pExpr; /* The Expr node that was transformed */ - Expr orig; /* Original value of the Expr node */ -}; - -/* ** The WHERE clause processing routine has two halves. The ** first part does the start of the WHERE loop and the second ** half does the tail of the WHERE loop. An instance of @@ -147346,10 +155947,10 @@ struct WhereInfo { SrcList *pTabList; /* List of tables in the join */ ExprList *pOrderBy; /* The ORDER BY clause or NULL */ ExprList *pResultSet; /* Result set of the query */ +#if WHERETRACE_ENABLED Expr *pWhere; /* The complete WHERE clause */ -#ifndef SQLITE_OMIT_VIRTUALTABLE - Select *pLimit; /* Used to access LIMIT expr/registers for vtabs */ #endif + Select *pSelect; /* The entire SELECT statement containing WHERE */ int aiCurOnePass[2]; /* OP_OpenWrite cursors for the ONEPASS opt */ int iContinue; /* Jump here to continue with next record */ int iBreak; /* Jump here to break out of the loop */ @@ -147368,7 +155969,7 @@ struct WhereInfo { int iTop; /* The very beginning of the WHERE loop */ int iEndWhere; /* End of the WHERE clause itself */ WhereLoop *pLoops; /* List of all WhereLoop objects */ - WhereExprMod *pExprMods; /* Expression modifications */ + WhereMemBlock *pMemToFree;/* Memory to free when this object destroyed */ Bitmask revMask; /* Mask of ORDER BY terms that need reversing */ WhereClause sWC; /* Decomposition of the WHERE clause */ WhereMaskSet sMaskSet; /* Map cursor numbers to bitmasks */ @@ -147384,7 +155985,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereGetMask(WhereMaskSet*,int); #ifdef WHERETRACE_ENABLED SQLITE_PRIVATE void sqlite3WhereClausePrint(WhereClause *pWC); SQLITE_PRIVATE void sqlite3WhereTermPrint(WhereTerm *pTerm, int iTerm); -SQLITE_PRIVATE void sqlite3WhereLoopPrint(WhereLoop *p, WhereClause *pWC); +SQLITE_PRIVATE void sqlite3WhereLoopPrint(const WhereLoop *p, const WhereClause *pWC); #endif SQLITE_PRIVATE WhereTerm *sqlite3WhereFindTerm( WhereClause *pWC, /* The WHERE clause to be searched */ @@ -147394,6 +155995,8 @@ SQLITE_PRIVATE WhereTerm *sqlite3WhereFindTerm( u32 op, /* Mask of WO_xx values describing operator */ Index *pIdx /* Must be compatible with this index, if not NULL */ ); +SQLITE_PRIVATE void *sqlite3WhereMalloc(WhereInfo *pWInfo, u64 nByte); +SQLITE_PRIVATE void *sqlite3WhereRealloc(WhereInfo *pWInfo, void *pOld, u64 nByte); /* wherecode.c: */ #ifndef SQLITE_OMIT_EXPLAIN @@ -147430,6 +156033,11 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( WhereLevel *pLevel, /* The current level pointer */ Bitmask notReady /* Which tables are currently available */ ); +SQLITE_PRIVATE SQLITE_NOINLINE void sqlite3WhereRightJoinLoop( + WhereInfo *pWInfo, + int iLevel, + WhereLevel *pLevel +); /* whereexpr.c: */ SQLITE_PRIVATE void sqlite3WhereClauseInit(WhereClause*,WhereInfo*); @@ -147472,8 +156080,9 @@ SQLITE_PRIVATE void sqlite3WhereTabFuncArgs(Parse*, SrcItem*, WhereClause*); #define WO_AND 0x0400 /* Two or more AND-connected terms */ #define WO_EQUIV 0x0800 /* Of the form A==B, both columns */ #define WO_NOOP 0x1000 /* This term does not restrict search space */ +#define WO_ROWVAL 0x2000 /* A row-value term */ -#define WO_ALL 0x1fff /* Mask of all possible WO_* values */ +#define WO_ALL 0x3fff /* Mask of all possible WO_* values */ #define WO_SINGLE 0x01ff /* Mask of all non-compound WO_* values */ /* @@ -147507,6 +156116,8 @@ SQLITE_PRIVATE void sqlite3WhereTabFuncArgs(Parse*, SrcItem*, WhereClause*); #define WHERE_BLOOMFILTER 0x00400000 /* Consider using a Bloom-filter */ #define WHERE_SELFCULL 0x00800000 /* nOut reduced by extra WHERE terms */ #define WHERE_OMIT_OFFSET 0x01000000 /* Set offset counter to zero */ + /* 0x02000000 -- available for reuse */ +#define WHERE_EXPRIDX 0x04000000 /* Uses an index-on-expressions */ #endif /* !defined(SQLITE_WHEREINT_H) */ @@ -147604,9 +156215,9 @@ static void explainIndexRange(StrAccum *pStr, WhereLoop *pLoop){ /* ** This function is a no-op unless currently processing an EXPLAIN QUERY PLAN -** command, or if either SQLITE_DEBUG or SQLITE_ENABLE_STMT_SCANSTATUS was -** defined at compile-time. If it is not a no-op, a single OP_Explain opcode -** is added to the output to describe the table scan strategy in pLevel. +** command, or if stmt_scanstatus_v2() stats are enabled, or if SQLITE_DEBUG +** was defined at compile-time. If it is not a no-op, a single OP_Explain +** opcode is added to the output to describe the table scan strategy in pLevel. ** ** If an OP_Explain opcode is added to the VM, its address is returned. ** Otherwise, if no OP_Explain is coded, zero is returned. @@ -147618,8 +156229,8 @@ SQLITE_PRIVATE int sqlite3WhereExplainOneScan( u16 wctrlFlags /* Flags passed to sqlite3WhereBegin() */ ){ int ret = 0; -#if !defined(SQLITE_DEBUG) && !defined(SQLITE_ENABLE_STMT_SCANSTATUS) - if( sqlite3ParseToplevel(pParse)->explain==2 ) +#if !defined(SQLITE_DEBUG) + if( sqlite3ParseToplevel(pParse)->explain==2 || IS_STMT_SCANSTATUS(pParse->db) ) #endif { SrcItem *pItem = &pTabList->a[pLevel->iFrom]; @@ -147697,6 +156308,9 @@ SQLITE_PRIVATE int sqlite3WhereExplainOneScan( pLoop->u.vtab.idxNum, pLoop->u.vtab.idxStr); } #endif + if( pItem->fg.jointype & JT_LEFT ){ + sqlite3_str_appendf(&str, " LEFT-JOIN"); + } #ifdef SQLITE_EXPLAIN_ESTIMATED_ROWS if( pLoop->nOut>=10 ){ sqlite3_str_appendf(&str, " (~%llu rows)", @@ -147760,6 +156374,8 @@ SQLITE_PRIVATE int sqlite3WhereExplainBloomFilter( zMsg = sqlite3StrAccumFinish(&str); ret = sqlite3VdbeAddOp4(v, OP_Explain, sqlite3VdbeCurrentAddr(v), pParse->addrExplain, 0, zMsg,P4_DYNAMIC); + + sqlite3VdbeScanStatus(v, sqlite3VdbeCurrentAddr(v)-1, 0, 0, 0, 0); return ret; } #endif /* SQLITE_OMIT_EXPLAIN */ @@ -147780,16 +156396,37 @@ SQLITE_PRIVATE void sqlite3WhereAddScanStatus( WhereLevel *pLvl, /* Level to add scanstatus() entry for */ int addrExplain /* Address of OP_Explain (or 0) */ ){ - const char *zObj = 0; - WhereLoop *pLoop = pLvl->pWLoop; - if( (pLoop->wsFlags & WHERE_VIRTUALTABLE)==0 && pLoop->u.btree.pIndex!=0 ){ - zObj = pLoop->u.btree.pIndex->zName; - }else{ - zObj = pSrclist->a[pLvl->iFrom].zName; + if( IS_STMT_SCANSTATUS( sqlite3VdbeDb(v) ) ){ + const char *zObj = 0; + WhereLoop *pLoop = pLvl->pWLoop; + int wsFlags = pLoop->wsFlags; + int viaCoroutine = 0; + + if( (wsFlags & WHERE_VIRTUALTABLE)==0 && pLoop->u.btree.pIndex!=0 ){ + zObj = pLoop->u.btree.pIndex->zName; + }else{ + zObj = pSrclist->a[pLvl->iFrom].zName; + viaCoroutine = pSrclist->a[pLvl->iFrom].fg.viaCoroutine; + } + sqlite3VdbeScanStatus( + v, addrExplain, pLvl->addrBody, pLvl->addrVisit, pLoop->nOut, zObj + ); + + if( viaCoroutine==0 ){ + if( (wsFlags & (WHERE_MULTI_OR|WHERE_AUTO_INDEX))==0 ){ + sqlite3VdbeScanStatusRange(v, addrExplain, -1, pLvl->iTabCur); + } + if( wsFlags & WHERE_INDEXED ){ + sqlite3VdbeScanStatusRange(v, addrExplain, -1, pLvl->iIdxCur); + } + }else{ + int addr = pSrclist->a[pLvl->iFrom].addrFillSub; + VdbeOp *pOp = sqlite3VdbeGetOp(v, addr-1); + assert( sqlite3VdbeDb(v)->mallocFailed || pOp->opcode==OP_InitCoroutine ); + assert( sqlite3VdbeDb(v)->mallocFailed || pOp->p2>addr ); + sqlite3VdbeScanStatusRange(v, addrExplain, addr, pOp->p2-1); + } } - sqlite3VdbeScanStatus( - v, addrExplain, pLvl->addrBody, pLvl->addrVisit, pLoop->nOut, zObj - ); } #endif @@ -147840,7 +156477,7 @@ static void disableTerm(WhereLevel *pLevel, WhereTerm *pTerm){ int nLoop = 0; assert( pTerm!=0 ); while( (pTerm->wtFlags & TERM_CODED)==0 - && (pLevel->iLeftJoin==0 || ExprHasProperty(pTerm->pExpr, EP_FromJoin)) + && (pLevel->iLeftJoin==0 || ExprHasProperty(pTerm->pExpr, EP_OuterON)) && (pLevel->notReady & pTerm->prereqAll)==0 ){ if( nLoop && (pTerm->wtFlags & TERM_LIKE)!=0 ){ @@ -147849,7 +156486,7 @@ static void disableTerm(WhereLevel *pLevel, WhereTerm *pTerm){ pTerm->wtFlags |= TERM_CODED; } #ifdef WHERETRACE_ENABLED - if( sqlite3WhereTrace & 0x20000 ){ + if( (sqlite3WhereTrace & 0x4001)==0x4001 ){ sqlite3DebugPrintf("DISABLE-"); sqlite3WhereTermPrint(pTerm, (int)(pTerm - (pTerm->pWC->a))); } @@ -147964,68 +156601,75 @@ static Expr *removeUnindexableInClauseTerms( Expr *pX /* The IN expression to be reduced */ ){ sqlite3 *db = pParse->db; + Select *pSelect; /* Pointer to the SELECT on the RHS */ Expr *pNew; pNew = sqlite3ExprDup(db, pX, 0); if( db->mallocFailed==0 ){ - ExprList *pOrigRhs; /* Original unmodified RHS */ - ExprList *pOrigLhs; /* Original unmodified LHS */ - ExprList *pRhs = 0; /* New RHS after modifications */ - ExprList *pLhs = 0; /* New LHS after mods */ - int i; /* Loop counter */ - Select *pSelect; /* Pointer to the SELECT on the RHS */ - - assert( ExprUseXSelect(pNew) ); - pOrigRhs = pNew->x.pSelect->pEList; - assert( pNew->pLeft!=0 ); - assert( ExprUseXList(pNew->pLeft) ); - pOrigLhs = pNew->pLeft->x.pList; - for(i=iEq; i<pLoop->nLTerm; i++){ - if( pLoop->aLTerm[i]->pExpr==pX ){ - int iField; - assert( (pLoop->aLTerm[i]->eOperator & (WO_OR|WO_AND))==0 ); - iField = pLoop->aLTerm[i]->u.x.iField - 1; - if( pOrigRhs->a[iField].pExpr==0 ) continue; /* Duplicate PK column */ - pRhs = sqlite3ExprListAppend(pParse, pRhs, pOrigRhs->a[iField].pExpr); - pOrigRhs->a[iField].pExpr = 0; - assert( pOrigLhs->a[iField].pExpr!=0 ); - pLhs = sqlite3ExprListAppend(pParse, pLhs, pOrigLhs->a[iField].pExpr); - pOrigLhs->a[iField].pExpr = 0; - } - } - sqlite3ExprListDelete(db, pOrigRhs); - sqlite3ExprListDelete(db, pOrigLhs); - pNew->pLeft->x.pList = pLhs; - pNew->x.pSelect->pEList = pRhs; - if( pLhs && pLhs->nExpr==1 ){ - /* Take care here not to generate a TK_VECTOR containing only a - ** single value. Since the parser never creates such a vector, some - ** of the subroutines do not handle this case. */ - Expr *p = pLhs->a[0].pExpr; - pLhs->a[0].pExpr = 0; - sqlite3ExprDelete(db, pNew->pLeft); - pNew->pLeft = p; - } - pSelect = pNew->x.pSelect; - if( pSelect->pOrderBy ){ - /* If the SELECT statement has an ORDER BY clause, zero the - ** iOrderByCol variables. These are set to non-zero when an - ** ORDER BY term exactly matches one of the terms of the - ** result-set. Since the result-set of the SELECT statement may - ** have been modified or reordered, these variables are no longer - ** set correctly. Since setting them is just an optimization, - ** it's easiest just to zero them here. */ - ExprList *pOrderBy = pSelect->pOrderBy; - for(i=0; i<pOrderBy->nExpr; i++){ - pOrderBy->a[i].u.x.iOrderByCol = 0; + for(pSelect=pNew->x.pSelect; pSelect; pSelect=pSelect->pPrior){ + ExprList *pOrigRhs; /* Original unmodified RHS */ + ExprList *pOrigLhs = 0; /* Original unmodified LHS */ + ExprList *pRhs = 0; /* New RHS after modifications */ + ExprList *pLhs = 0; /* New LHS after mods */ + int i; /* Loop counter */ + + assert( ExprUseXSelect(pNew) ); + pOrigRhs = pSelect->pEList; + assert( pNew->pLeft!=0 ); + assert( ExprUseXList(pNew->pLeft) ); + if( pSelect==pNew->x.pSelect ){ + pOrigLhs = pNew->pLeft->x.pList; + } + for(i=iEq; i<pLoop->nLTerm; i++){ + if( pLoop->aLTerm[i]->pExpr==pX ){ + int iField; + assert( (pLoop->aLTerm[i]->eOperator & (WO_OR|WO_AND))==0 ); + iField = pLoop->aLTerm[i]->u.x.iField - 1; + if( pOrigRhs->a[iField].pExpr==0 ) continue; /* Duplicate PK column */ + pRhs = sqlite3ExprListAppend(pParse, pRhs, pOrigRhs->a[iField].pExpr); + pOrigRhs->a[iField].pExpr = 0; + if( pOrigLhs ){ + assert( pOrigLhs->a[iField].pExpr!=0 ); + pLhs = sqlite3ExprListAppend(pParse,pLhs,pOrigLhs->a[iField].pExpr); + pOrigLhs->a[iField].pExpr = 0; + } + } + } + sqlite3ExprListDelete(db, pOrigRhs); + if( pOrigLhs ){ + sqlite3ExprListDelete(db, pOrigLhs); + pNew->pLeft->x.pList = pLhs; + } + pSelect->pEList = pRhs; + if( pLhs && pLhs->nExpr==1 ){ + /* Take care here not to generate a TK_VECTOR containing only a + ** single value. Since the parser never creates such a vector, some + ** of the subroutines do not handle this case. */ + Expr *p = pLhs->a[0].pExpr; + pLhs->a[0].pExpr = 0; + sqlite3ExprDelete(db, pNew->pLeft); + pNew->pLeft = p; + } + if( pSelect->pOrderBy ){ + /* If the SELECT statement has an ORDER BY clause, zero the + ** iOrderByCol variables. These are set to non-zero when an + ** ORDER BY term exactly matches one of the terms of the + ** result-set. Since the result-set of the SELECT statement may + ** have been modified or reordered, these variables are no longer + ** set correctly. Since setting them is just an optimization, + ** it's easiest just to zero them here. */ + ExprList *pOrderBy = pSelect->pOrderBy; + for(i=0; i<pOrderBy->nExpr; i++){ + pOrderBy->a[i].u.x.iOrderByCol = 0; + } } - } #if 0 - printf("For indexing, change the IN expr:\n"); - sqlite3TreeViewExpr(0, pX, 0); - printf("Into:\n"); - sqlite3TreeViewExpr(0, pNew, 0); + printf("For indexing, change the IN expr:\n"); + sqlite3TreeViewExpr(0, pX, 0); + printf("Into:\n"); + sqlite3TreeViewExpr(0, pNew, 0); #endif + } } return pNew; } @@ -148101,16 +156745,22 @@ static int codeEqualityTerm( if( !ExprUseXSelect(pX) || pX->x.pSelect->pEList->nExpr==1 ){ eType = sqlite3FindInIndex(pParse, pX, IN_INDEX_LOOP, 0, 0, &iTab); }else{ - sqlite3 *db = pParse->db; - pX = removeUnindexableInClauseTerms(pParse, iEq, pLoop, pX); - - if( !db->mallocFailed ){ - aiMap = (int*)sqlite3DbMallocZero(pParse->db, sizeof(int)*nEq); + Expr *pExpr = pTerm->pExpr; + if( pExpr->iTable==0 || !ExprHasProperty(pExpr, EP_Subrtn) ){ + sqlite3 *db = pParse->db; + pX = removeUnindexableInClauseTerms(pParse, iEq, pLoop, pX); + if( !db->mallocFailed ){ + aiMap = (int*)sqlite3DbMallocZero(pParse->db, sizeof(int)*nEq); + eType = sqlite3FindInIndex(pParse, pX, IN_INDEX_LOOP, 0, aiMap,&iTab); + pExpr->iTable = iTab; + } + sqlite3ExprDelete(db, pX); + }else{ + int n = sqlite3ExprVectorSize(pX->pLeft); + aiMap = (int*)sqlite3DbMallocZero(pParse->db, sizeof(int)*MAX(nEq,n)); eType = sqlite3FindInIndex(pParse, pX, IN_INDEX_LOOP, 0, aiMap, &iTab); - pTerm->pExpr->iTable = iTab; } - sqlite3ExprDelete(db, pX); - pX = pTerm->pExpr; + pX = pExpr; } if( eType==IN_INDEX_INDEX_DESC ){ @@ -148133,8 +156783,9 @@ static int codeEqualityTerm( i = pLevel->u.in.nIn; pLevel->u.in.nIn += nEq; pLevel->u.in.aInLoop = - sqlite3DbReallocOrFree(pParse->db, pLevel->u.in.aInLoop, - sizeof(pLevel->u.in.aInLoop[0])*pLevel->u.in.nIn); + sqlite3WhereRealloc(pTerm->pWC->pWInfo, + pLevel->u.in.aInLoop, + sizeof(pLevel->u.in.aInLoop[0])*pLevel->u.in.nIn); pIn = pLevel->u.in.aInLoop; if( pIn ){ int iMap = 0; /* Index in aiMap[] */ @@ -148271,7 +156922,7 @@ static int codeAllEqualityTerms( /* Figure out how many memory cells we will need then allocate them. */ regBase = pParse->nMem + 1; - nReg = pLoop->u.btree.nEq + nExtraReg; + nReg = nEq + nExtraReg; pParse->nMem += nReg; zAff = sqlite3DbStrDup(pParse->db,sqlite3IndexAffinityStr(pParse->db,pIdx)); @@ -148318,9 +156969,6 @@ static int codeAllEqualityTerms( sqlite3VdbeAddOp2(v, OP_Copy, r1, regBase+j); } } - } - for(j=nSkip; j<nEq; j++){ - pTerm = pLoop->aLTerm[j]; if( pTerm->eOperator & WO_IN ){ if( pTerm->pExpr->flags & EP_xIsSelect ){ /* No affinity ever needs to be (or should be) applied to a value @@ -148376,7 +157024,7 @@ static void whereLikeOptimizationStringFixup( if( pTerm->wtFlags & TERM_LIKEOPT ){ VdbeOp *pOp; assert( pLevel->iLikeRepCntr>0 ); - pOp = sqlite3VdbeGetOp(v, -1); + pOp = sqlite3VdbeGetLastOp(v); assert( pOp!=0 ); assert( pOp->opcode==OP_String8 || pTerm->pWC->pWInfo->pParse->db->mallocFailed ); @@ -148463,18 +157111,19 @@ static int codeCursorHintIsOrFunction(Walker *pWalker, Expr *pExpr){ ** 2) transform the expression node to a TK_REGISTER node that reads ** from the newly populated register. ** -** Also, if the node is a TK_COLUMN that does access the table idenified +** Also, if the node is a TK_COLUMN that does access the table identified ** by pCCurHint.iTabCur, and an index is being used (which we will ** know because CCurHint.pIdx!=0) then transform the TK_COLUMN into ** an access of the index rather than the original table. */ static int codeCursorHintFixExpr(Walker *pWalker, Expr *pExpr){ int rc = WRC_Continue; + int reg; struct CCurHint *pHint = pWalker->u.pCCurHint; if( pExpr->op==TK_COLUMN ){ if( pExpr->iTable!=pHint->iTabCur ){ - int reg = ++pWalker->pParse->nMem; /* Register for column value */ - sqlite3ExprCode(pWalker->pParse, pExpr, reg); + reg = ++pWalker->pParse->nMem; /* Register for column value */ + reg = sqlite3ExprCodeTarget(pWalker->pParse, pExpr, reg); pExpr->op = TK_REGISTER; pExpr->iTable = reg; }else if( pHint->pIdx!=0 ){ @@ -148482,15 +157131,15 @@ static int codeCursorHintFixExpr(Walker *pWalker, Expr *pExpr){ pExpr->iColumn = sqlite3TableColumnToIndex(pHint->pIdx, pExpr->iColumn); assert( pExpr->iColumn>=0 ); } - }else if( pExpr->op==TK_AGG_FUNCTION ){ - /* An aggregate function in the WHERE clause of a query means this must - ** be a correlated sub-query, and expression pExpr is an aggregate from - ** the parent context. Do not walk the function arguments in this case. - ** - ** todo: It should be possible to replace this node with a TK_REGISTER - ** expression, as the result of the expression must be stored in a - ** register at this point. The same holds for TK_AGG_COLUMN nodes. */ + }else if( pExpr->pAggInfo ){ rc = WRC_Prune; + reg = ++pWalker->pParse->nMem; /* Register for column value */ + reg = sqlite3ExprCodeTarget(pWalker->pParse, pExpr, reg); + pExpr->op = TK_REGISTER; + pExpr->iTable = reg; + }else if( pExpr->op==TK_TRUEFALSE ){ + /* Do not walk disabled expressions. tag-20230504-1 */ + return WRC_Prune; } return rc; } @@ -148555,8 +157204,8 @@ static void codeCursorHint( */ if( pTabItem->fg.jointype & JT_LEFT ){ Expr *pExpr = pTerm->pExpr; - if( !ExprHasProperty(pExpr, EP_FromJoin) - || pExpr->w.iRightJoinTable!=pTabItem->iCursor + if( !ExprHasProperty(pExpr, EP_OuterON) + || pExpr->w.iJoin!=pTabItem->iCursor ){ sWalker.eCode = 0; sWalker.xExprCallback = codeCursorHintIsOrFunction; @@ -148564,7 +157213,7 @@ static void codeCursorHint( if( sWalker.eCode ) continue; } }else{ - if( ExprHasProperty(pTerm->pExpr, EP_FromJoin) ) continue; + if( ExprHasProperty(pTerm->pExpr, EP_OuterON) ) continue; } /* All terms in pWLoop->aLTerm[] except pEndRange are used to initialize @@ -148592,7 +157241,7 @@ static void codeCursorHint( } if( pExpr!=0 ){ sWalker.xExprCallback = codeCursorHintFixExpr; - sqlite3WalkExpr(&sWalker, pExpr); + if( pParse->nErr==0 ) sqlite3WalkExpr(&sWalker, pExpr); sqlite3VdbeAddOp4(v, OP_CursorHint, (sHint.pIdx ? sHint.iIdxCur : sHint.iTabCur), 0, 0, (const char*)pExpr, P4_EXPR); @@ -148612,13 +157261,21 @@ static void codeCursorHint( ** ** OP_DeferredSeek $iCur $iRowid ** +** Which causes a seek on $iCur to the row with rowid $iRowid. +** ** However, if the scan currently being coded is a branch of an OR-loop and -** the statement currently being coded is a SELECT, then P3 of OP_DeferredSeek -** is set to iIdxCur and P4 is set to point to an array of integers -** containing one entry for each column of the table cursor iCur is open -** on. For each table column, if the column is the i'th column of the -** index, then the corresponding array entry is set to (i+1). If the column -** does not appear in the index at all, the array entry is set to 0. +** the statement currently being coded is a SELECT, then additional information +** is added that might allow OP_Column to omit the seek and instead do its +** lookup on the index, thus avoiding an expensive seek operation. To +** enable this optimization, the P3 of OP_DeferredSeek is set to iIdxCur +** and P4 is set to an array of integers containing one entry for each column +** in the table. For each table column, if the column is the i'th +** column of the index, then the corresponding array entry is set to (i+1). +** If the column does not appear in the index at all, the array entry is set +** to 0. The OP_Column opcode can check this array to see if the column it +** wants is in the index and if it is, it will substitute the index cursor +** and column number and continue with those new values, rather than seeking +** the table cursor. */ static void codeDeferredSeek( WhereInfo *pWInfo, /* Where clause context */ @@ -148634,7 +157291,7 @@ static void codeDeferredSeek( pWInfo->bDeferredSeek = 1; sqlite3VdbeAddOp3(v, OP_DeferredSeek, iIdxCur, 0, iCur); - if( (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE) + if( (pWInfo->wctrlFlags & (WHERE_OR_SUBCLAUSE|WHERE_RIGHT_JOIN)) && DbMaskAllZero(sqlite3ParseToplevel(pParse)->writeMask) ){ int i; @@ -148692,144 +157349,6 @@ static void codeExprOrVector(Parse *pParse, Expr *p, int iReg, int nReg){ } } -/* An instance of the IdxExprTrans object carries information about a -** mapping from an expression on table columns into a column in an index -** down through the Walker. -*/ -typedef struct IdxExprTrans { - Expr *pIdxExpr; /* The index expression */ - int iTabCur; /* The cursor of the corresponding table */ - int iIdxCur; /* The cursor for the index */ - int iIdxCol; /* The column for the index */ - int iTabCol; /* The column for the table */ - WhereInfo *pWInfo; /* Complete WHERE clause information */ - sqlite3 *db; /* Database connection (for malloc()) */ -} IdxExprTrans; - -/* -** Preserve pExpr on the WhereETrans list of the WhereInfo. -*/ -static void preserveExpr(IdxExprTrans *pTrans, Expr *pExpr){ - WhereExprMod *pNew; - pNew = sqlite3DbMallocRaw(pTrans->db, sizeof(*pNew)); - if( pNew==0 ) return; - pNew->pNext = pTrans->pWInfo->pExprMods; - pTrans->pWInfo->pExprMods = pNew; - pNew->pExpr = pExpr; - memcpy(&pNew->orig, pExpr, sizeof(*pExpr)); -} - -/* The walker node callback used to transform matching expressions into -** a reference to an index column for an index on an expression. -** -** If pExpr matches, then transform it into a reference to the index column -** that contains the value of pExpr. -*/ -static int whereIndexExprTransNode(Walker *p, Expr *pExpr){ - IdxExprTrans *pX = p->u.pIdxTrans; - if( sqlite3ExprCompare(0, pExpr, pX->pIdxExpr, pX->iTabCur)==0 ){ - pExpr = sqlite3ExprSkipCollate(pExpr); - preserveExpr(pX, pExpr); - pExpr->affExpr = sqlite3ExprAffinity(pExpr); - pExpr->op = TK_COLUMN; - pExpr->iTable = pX->iIdxCur; - pExpr->iColumn = pX->iIdxCol; - testcase( ExprHasProperty(pExpr, EP_Skip) ); - testcase( ExprHasProperty(pExpr, EP_Unlikely) ); - ExprClearProperty(pExpr, EP_Skip|EP_Unlikely|EP_WinFunc|EP_Subrtn); - pExpr->y.pTab = 0; - return WRC_Prune; - }else{ - return WRC_Continue; - } -} - -#ifndef SQLITE_OMIT_GENERATED_COLUMNS -/* A walker node callback that translates a column reference to a table -** into a corresponding column reference of an index. -*/ -static int whereIndexExprTransColumn(Walker *p, Expr *pExpr){ - if( pExpr->op==TK_COLUMN ){ - IdxExprTrans *pX = p->u.pIdxTrans; - if( pExpr->iTable==pX->iTabCur && pExpr->iColumn==pX->iTabCol ){ - assert( ExprUseYTab(pExpr) && pExpr->y.pTab!=0 ); - preserveExpr(pX, pExpr); - pExpr->affExpr = sqlite3TableColumnAffinity(pExpr->y.pTab,pExpr->iColumn); - pExpr->iTable = pX->iIdxCur; - pExpr->iColumn = pX->iIdxCol; - pExpr->y.pTab = 0; - } - } - return WRC_Continue; -} -#endif /* SQLITE_OMIT_GENERATED_COLUMNS */ - -/* -** For an indexes on expression X, locate every instance of expression X -** in pExpr and change that subexpression into a reference to the appropriate -** column of the index. -** -** 2019-10-24: Updated to also translate references to a VIRTUAL column in -** the table into references to the corresponding (stored) column of the -** index. -*/ -static void whereIndexExprTrans( - Index *pIdx, /* The Index */ - int iTabCur, /* Cursor of the table that is being indexed */ - int iIdxCur, /* Cursor of the index itself */ - WhereInfo *pWInfo /* Transform expressions in this WHERE clause */ -){ - int iIdxCol; /* Column number of the index */ - ExprList *aColExpr; /* Expressions that are indexed */ - Table *pTab; - Walker w; - IdxExprTrans x; - aColExpr = pIdx->aColExpr; - if( aColExpr==0 && !pIdx->bHasVCol ){ - /* The index does not reference any expressions or virtual columns - ** so no translations are needed. */ - return; - } - pTab = pIdx->pTable; - memset(&w, 0, sizeof(w)); - w.u.pIdxTrans = &x; - x.iTabCur = iTabCur; - x.iIdxCur = iIdxCur; - x.pWInfo = pWInfo; - x.db = pWInfo->pParse->db; - for(iIdxCol=0; iIdxCol<pIdx->nColumn; iIdxCol++){ - i16 iRef = pIdx->aiColumn[iIdxCol]; - if( iRef==XN_EXPR ){ - assert( aColExpr!=0 && aColExpr->a[iIdxCol].pExpr!=0 ); - x.pIdxExpr = aColExpr->a[iIdxCol].pExpr; - if( sqlite3ExprIsConstant(x.pIdxExpr) ) continue; - w.xExprCallback = whereIndexExprTransNode; -#ifndef SQLITE_OMIT_GENERATED_COLUMNS - }else if( iRef>=0 - && (pTab->aCol[iRef].colFlags & COLFLAG_VIRTUAL)!=0 - && ((pTab->aCol[iRef].colFlags & COLFLAG_HASCOLL)==0 - || sqlite3StrICmp(sqlite3ColumnColl(&pTab->aCol[iRef]), - sqlite3StrBINARY)==0) - ){ - /* Check to see if there are direct references to generated columns - ** that are contained in the index. Pulling the generated column - ** out of the index is an optimization only - the main table is always - ** available if the index cannot be used. To avoid unnecessary - ** complication, omit this optimization if the collating sequence for - ** the column is non-standard */ - x.iTabCol = iRef; - w.xExprCallback = whereIndexExprTransColumn; -#endif /* SQLITE_OMIT_GENERATED_COLUMNS */ - }else{ - continue; - } - x.iIdxCol = iIdxCol; - sqlite3WalkExpr(&w, pWInfo->pWhere); - sqlite3WalkExprList(&w, pWInfo->pOrderBy); - sqlite3WalkExprList(&w, pWInfo->pResultSet); - } -} - /* ** The pTruth expression is always true because it is the WHERE clause ** a partial index that is driving a query loop. Look through all of the @@ -148898,6 +157417,8 @@ static SQLITE_NOINLINE void filterPullDown( testcase( pTerm->wtFlags & TERM_VIRTUAL ); regRowid = sqlite3GetTempReg(pParse); regRowid = codeEqualityTerm(pParse, pTerm, pLevel, 0, 0, regRowid); + sqlite3VdbeAddOp2(pParse->pVdbe, OP_MustBeInt, regRowid, addrNxt); + VdbeCoverage(pParse->pVdbe); sqlite3VdbeAddOp4Int(pParse->pVdbe, OP_Filter, pLevel->regFilter, addrNxt, regRowid, 1); VdbeCoverage(pParse->pVdbe); @@ -148957,13 +157478,15 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( pLevel->notReady = notReady & ~sqlite3WhereGetMask(&pWInfo->sMaskSet, iCur); bRev = (pWInfo->revMask>>iLevel)&1; VdbeModuleComment((v, "Begin WHERE-loop%d: %s",iLevel,pTabItem->pTab->zName)); -#if WHERETRACE_ENABLED /* 0x20800 */ - if( sqlite3WhereTrace & 0x800 ){ +#if WHERETRACE_ENABLED /* 0x4001 */ + if( sqlite3WhereTrace & 0x1 ){ sqlite3DebugPrintf("Coding level %d of %d: notReady=%llx iFrom=%d\n", iLevel, pWInfo->nLevel, (u64)notReady, pLevel->iFrom); - sqlite3WhereLoopPrint(pLoop, pWC); + if( sqlite3WhereTrace & 0x1000 ){ + sqlite3WhereLoopPrint(pLoop, pWC); + } } - if( sqlite3WhereTrace & 0x20000 ){ + if( (sqlite3WhereTrace & 0x4001)==0x4001 ){ if( iLevel==0 ){ sqlite3DebugPrintf("WHERE clause being coded:\n"); sqlite3TreeViewExpr(0, pWInfo->pWhere, 0); @@ -148990,7 +157513,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( ** initialize a memory cell that records if this table matches any ** row of the left table of the join. */ - assert( (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE) + assert( (pWInfo->wctrlFlags & (WHERE_OR_SUBCLAUSE|WHERE_RIGHT_JOIN)) || pLevel->iFrom>0 || (pTabItem[0].fg.jointype & JT_LEFT)==0 ); if( pLevel->iFrom>0 && (pTabItem[0].fg.jointype & JT_LEFT)!=0 ){ @@ -149001,7 +157524,10 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( /* Compute a safe address to jump to if we discover that the table for ** this loop is empty and can never contribute content. */ - for(j=iLevel; j>0 && pWInfo->a[j].iLeftJoin==0; j--){} + for(j=iLevel; j>0; j--){ + if( pWInfo->a[j].iLeftJoin ) break; + if( pWInfo->a[j].pRJ ) break; + } addrHalt = pWInfo->a[j].addrBrk; /* Special case of a FROM clause subquery implemented as a co-routine */ @@ -149046,9 +157572,9 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( && pLoop->u.vtab.bOmitOffset ){ assert( pTerm->eOperator==WO_AUX ); - assert( pWInfo->pLimit!=0 ); - assert( pWInfo->pLimit->iOffset>0 ); - sqlite3VdbeAddOp2(v, OP_Integer, 0, pWInfo->pLimit->iOffset); + assert( pWInfo->pSelect!=0 ); + assert( pWInfo->pSelect->iOffset>0 ); + sqlite3VdbeAddOp2(v, OP_Integer, 0, pWInfo->pSelect->iOffset); VdbeComment((v,"Zero OFFSET counter")); } } @@ -149156,6 +157682,8 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( if( iRowidReg!=iReleaseReg ) sqlite3ReleaseTempReg(pParse, iReleaseReg); addrNxt = pLevel->addrNxt; if( pLevel->regFilter ){ + sqlite3VdbeAddOp2(v, OP_MustBeInt, iRowidReg, addrNxt); + VdbeCoverage(v); sqlite3VdbeAddOp4Int(v, OP_Filter, pLevel->regFilter, addrNxt, iRowidReg, 1); VdbeCoverage(v); @@ -149201,7 +157729,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( }; assert( TK_LE==TK_GT+1 ); /* Make sure the ordering.. */ assert( TK_LT==TK_GT+2 ); /* ... of the TK_xx values... */ - assert( TK_GE==TK_GT+3 ); /* ... is correcct. */ + assert( TK_GE==TK_GT+3 ); /* ... is correct. */ assert( (pStart->wtFlags & TERM_VNULL)==0 ); testcase( pStart->wtFlags & TERM_VIRTUAL ); @@ -149507,6 +158035,11 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( ** guess. */ addrSeekScan = sqlite3VdbeAddOp1(v, OP_SeekScan, (pIdx->aiRowLogEst[0]+9)/10); + if( pRangeStart || pRangeEnd ){ + sqlite3VdbeChangeP5(v, 1); + sqlite3VdbeChangeP2(v, addrSeekScan, sqlite3VdbeCurrentAddr(v)+1); + addrSeekScan = 0; + } VdbeCoverage(v); } sqlite3VdbeAddOp4Int(v, op, iIdxCur, addrNxt, regBase, nConstraint); @@ -149543,16 +158076,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( assert( pLevel->p2==0 ); if( pRangeEnd ){ Expr *pRight = pRangeEnd->pExpr->pRight; - if( addrSeekScan ){ - /* For a seek-scan that has a range on the lowest term of the index, - ** we have to make the top of the loop be code that sets the end - ** condition of the range. Otherwise, the OP_SeekScan might jump - ** over that initialization, leaving the range-end value set to the - ** range-start value, resulting in a wrong answer. - ** See ticket 5981a8c041a3c2f3 (2021-11-02). - */ - pLevel->p2 = sqlite3VdbeCurrentAddr(v); - } + assert( addrSeekScan==0 ); codeExprOrVector(pParse, pRight, regBase+nEq, nTop); whereLikeOptimizationStringFixup(v, pLevel, pRangeEnd); if( (pRangeEnd->wtFlags & TERM_VNULL)==0 @@ -149582,11 +158106,11 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( } nConstraint++; } - sqlite3DbFree(db, zStartAff); - sqlite3DbFree(db, zEndAff); + if( zStartAff ) sqlite3DbNNFreeNN(db, zStartAff); + if( zEndAff ) sqlite3DbNNFreeNN(db, zEndAff); /* Top of the loop body */ - if( pLevel->p2==0 ) pLevel->p2 = sqlite3VdbeCurrentAddr(v); + pLevel->p2 = sqlite3VdbeCurrentAddr(v); /* Check if the index cursor is past the end of the range. */ if( nConstraint ){ @@ -149628,7 +158152,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( /* Seek the table cursor, if required */ omitTable = (pLoop->wsFlags & WHERE_IDX_ONLY)!=0 - && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0; + && (pWInfo->wctrlFlags & (WHERE_OR_SUBCLAUSE|WHERE_RIGHT_JOIN))==0; if( omitTable ){ /* pIdx is a covering index. No need to access the main table. */ }else if( HasRowid(pIdx->pTable) ){ @@ -149645,27 +158169,6 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( } if( pLevel->iLeftJoin==0 ){ - /* If pIdx is an index on one or more expressions, then look through - ** all the expressions in pWInfo and try to transform matching expressions - ** into reference to index columns. Also attempt to translate references - ** to virtual columns in the table into references to (stored) columns - ** of the index. - ** - ** Do not do this for the RHS of a LEFT JOIN. This is because the - ** expression may be evaluated after OP_NullRow has been executed on - ** the cursor. In this case it is important to do the full evaluation, - ** as the result of the expression may not be NULL, even if all table - ** column values are. https://www.sqlite.org/src/info/7fa8049685b50b5a - ** - ** Also, do not do this when processing one index an a multi-index - ** OR clause, since the transformation will become invalid once we - ** move forward to the next index. - ** https://sqlite.org/src/info/4e8e4857d32d401f - */ - if( (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0 ){ - whereIndexExprTrans(pIdx, iCur, iIdxCur, pWInfo); - } - /* If a partial index is driving the loop, try to eliminate WHERE clause ** terms from the query that must be true due to the WHERE clause of ** the partial index. @@ -149681,7 +158184,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( /* The following assert() is not a requirement, merely an observation: ** The OR-optimization doesn't work for the right hand table of ** a LEFT JOIN: */ - assert( (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0 ); + assert( (pWInfo->wctrlFlags & (WHERE_OR_SUBCLAUSE|WHERE_RIGHT_JOIN))==0 ); } /* Record the instruction used to terminate the loop. */ @@ -149778,7 +158281,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( int nNotReady; /* The number of notReady tables */ SrcItem *origSrc; /* Original list of tables */ nNotReady = pWInfo->nLevel - iLevel - 1; - pOrTab = sqlite3StackAllocRaw(db, + pOrTab = sqlite3DbMallocRawNN(db, sizeof(*pOrTab)+ nNotReady*sizeof(pOrTab->a[0])); if( pOrTab==0 ) return notReady; pOrTab->nAlloc = (u8)(nNotReady + 1); @@ -149885,7 +158388,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( Expr *pDelete; /* Local copy of OR clause term */ int jmp1 = 0; /* Address of jump operation */ testcase( (pTabItem[0].fg.jointype & JT_LEFT)!=0 - && !ExprHasProperty(pOrExpr, EP_FromJoin) + && !ExprHasProperty(pOrExpr, EP_OuterON) ); /* See TH3 vtab25.400 and ticket 614b25314c766238 */ pDelete = pOrExpr = sqlite3ExprDup(db, pOrExpr, 0); if( db->mallocFailed ){ @@ -149898,7 +158401,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( } /* Loop through table entries that match term pOrTerm. */ ExplainQueryPlan((pParse, 1, "INDEX %d", ii+1)); - WHERETRACE(0xffff, ("Subplan for OR-clause:\n")); + WHERETRACE(0xffffffff, ("Subplan for OR-clause:\n")); pSubWInfo = sqlite3WhereBegin(pParse, pOrTab, pOrExpr, 0, 0, 0, WHERE_OR_SUBCLAUSE, iCovCur); assert( pSubWInfo || pParse->nErr ); @@ -150023,7 +158526,15 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( sqlite3VdbeGoto(v, pLevel->addrBrk); sqlite3VdbeResolveLabel(v, iLoopBody); - if( pWInfo->nLevel>1 ){ sqlite3StackFree(db, pOrTab); } + /* Set the P2 operand of the OP_Return opcode that will end the current + ** loop to point to this spot, which is the top of the next containing + ** loop. The byte-code formatter will use that P2 value as a hint to + ** indent everything in between the this point and the final OP_Return. + ** See tag-20220407a in vdbe.c and shell.c */ + assert( pLevel->op==OP_Return ); + pLevel->p2 = sqlite3VdbeCurrentAddr(v); + + if( pWInfo->nLevel>1 ){ sqlite3DbFreeNN(db, pOrTab); } if( !untestedTerms ) disableTerm(pLevel, pTerm); }else #endif /* SQLITE_OMIT_OR_OPTIMIZATION */ @@ -150085,10 +158596,22 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( } pE = pTerm->pExpr; assert( pE!=0 ); - if( (pTabItem->fg.jointype&JT_LEFT) && !ExprHasProperty(pE,EP_FromJoin) ){ - continue; + if( pTabItem->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT) ){ + if( !ExprHasProperty(pE,EP_OuterON|EP_InnerON) ){ + /* Defer processing WHERE clause constraints until after outer + ** join processing. tag-20220513a */ + continue; + }else if( (pTabItem->fg.jointype & JT_LEFT)==JT_LEFT + && !ExprHasProperty(pE,EP_OuterON) ){ + continue; + }else{ + Bitmask m = sqlite3WhereGetMask(&pWInfo->sMaskSet, pE->w.iJoin); + if( m & pLevel->notReady ){ + /* An ON clause that is not ripe */ + continue; + } + } } - if( iLoop==1 && !sqlite3ExprCoveredByIndex(pE, pLevel->iTabCur, pIdx) ){ iNext = 2; continue; @@ -150115,12 +158638,12 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( } #endif } -#ifdef WHERETRACE_ENABLED /* 0xffff */ +#ifdef WHERETRACE_ENABLED /* 0xffffffff */ if( sqlite3WhereTrace ){ VdbeNoopComment((v, "WhereTerm[%d] (%p) priority=%d", pWC->nTerm-j, pTerm, iLoop)); } - if( sqlite3WhereTrace & 0x800 ){ + if( sqlite3WhereTrace & 0x4000 ){ sqlite3DebugPrintf("Coding auxiliary constraint:\n"); sqlite3WhereTermPrint(pTerm, pWC->nTerm-j); } @@ -150147,15 +158670,15 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( if( (pTerm->eOperator & (WO_EQ|WO_IS))==0 ) continue; if( (pTerm->eOperator & WO_EQUIV)==0 ) continue; if( pTerm->leftCursor!=iCur ) continue; - if( pTabItem->fg.jointype & JT_LEFT ) continue; + if( pTabItem->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT) ) continue; pE = pTerm->pExpr; -#ifdef WHERETRACE_ENABLED /* 0x800 */ - if( sqlite3WhereTrace & 0x800 ){ +#ifdef WHERETRACE_ENABLED /* 0x4001 */ + if( (sqlite3WhereTrace & 0x4001)==0x4001 ){ sqlite3DebugPrintf("Coding transitive constraint:\n"); sqlite3WhereTermPrint(pTerm, pWC->nTerm-j); } #endif - assert( !ExprHasProperty(pE, EP_FromJoin) ); + assert( !ExprHasProperty(pE, EP_OuterON) ); assert( (pTerm->prereqRight & pLevel->notReady)!=0 ); assert( (pTerm->eOperator & (WO_OR|WO_AND))==0 ); pAlt = sqlite3WhereFindTerm(pWC, iCur, pTerm->u.x.leftColumn, notReady, @@ -150178,6 +158701,47 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( pAlt->wtFlags |= TERM_CODED; } + /* For a RIGHT OUTER JOIN, record the fact that the current row has + ** been matched at least once. + */ + if( pLevel->pRJ ){ + Table *pTab; + int nPk; + int r; + int jmp1 = 0; + WhereRightJoin *pRJ = pLevel->pRJ; + + /* pTab is the right-hand table of the RIGHT JOIN. Generate code that + ** will record that the current row of that table has been matched at + ** least once. This is accomplished by storing the PK for the row in + ** both the iMatch index and the regBloom Bloom filter. + */ + pTab = pWInfo->pTabList->a[pLevel->iFrom].pTab; + if( HasRowid(pTab) ){ + r = sqlite3GetTempRange(pParse, 2); + sqlite3ExprCodeGetColumnOfTable(v, pTab, pLevel->iTabCur, -1, r+1); + nPk = 1; + }else{ + int iPk; + Index *pPk = sqlite3PrimaryKeyIndex(pTab); + nPk = pPk->nKeyCol; + r = sqlite3GetTempRange(pParse, nPk+1); + for(iPk=0; iPk<nPk; iPk++){ + int iCol = pPk->aiColumn[iPk]; + sqlite3ExprCodeGetColumnOfTable(v, pTab, iCur, iCol,r+1+iPk); + } + } + jmp1 = sqlite3VdbeAddOp4Int(v, OP_Found, pRJ->iMatch, 0, r+1, nPk); + VdbeCoverage(v); + VdbeComment((v, "match against %s", pTab->zName)); + sqlite3VdbeAddOp3(v, OP_MakeRecord, r+1, nPk, r); + sqlite3VdbeAddOp4Int(v, OP_IdxInsert, pRJ->iMatch, r, r+1, nPk); + sqlite3VdbeAddOp4Int(v, OP_FilterAdd, pRJ->regBloom, 0, r+1, nPk); + sqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT); + sqlite3VdbeJumpHere(v, jmp1); + sqlite3ReleaseTempRange(pParse, r, nPk+1); + } + /* For a LEFT OUTER JOIN, generate code that will record the fact that ** at least one row of the right table has matched the left table. */ @@ -150185,6 +158749,30 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( pLevel->addrFirst = sqlite3VdbeCurrentAddr(v); sqlite3VdbeAddOp2(v, OP_Integer, 1, pLevel->iLeftJoin); VdbeComment((v, "record LEFT JOIN hit")); + if( pLevel->pRJ==0 ){ + goto code_outer_join_constraints; /* WHERE clause constraints */ + } + } + + if( pLevel->pRJ ){ + /* Create a subroutine used to process all interior loops and code + ** of the RIGHT JOIN. During normal operation, the subroutine will + ** be in-line with the rest of the code. But at the end, a separate + ** loop will run that invokes this subroutine for unmatched rows + ** of pTab, with all tables to left begin set to NULL. + */ + WhereRightJoin *pRJ = pLevel->pRJ; + sqlite3VdbeAddOp2(v, OP_BeginSubrtn, 0, pRJ->regReturn); + pRJ->addrSubrtn = sqlite3VdbeCurrentAddr(v); + assert( pParse->withinRJSubrtn < 255 ); + pParse->withinRJSubrtn++; + + /* WHERE clause constraints must be deferred until after outer join + ** row elimination has completed, since WHERE clause constraints apply + ** to the results of the OUTER JOIN. The following loop generates the + ** appropriate WHERE clause constraint checks. tag-20220513a. + */ + code_outer_join_constraints: for(pTerm=pWC->a, j=0; j<pWC->nBase; j++, pTerm++){ testcase( pTerm->wtFlags & TERM_VIRTUAL ); testcase( pTerm->wtFlags & TERM_CODED ); @@ -150193,19 +158781,20 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( assert( pWInfo->untestedTerms ); continue; } + if( pTabItem->fg.jointype & JT_LTORJ ) continue; assert( pTerm->pExpr ); sqlite3ExprIfFalse(pParse, pTerm->pExpr, addrCont, SQLITE_JUMPIFNULL); pTerm->wtFlags |= TERM_CODED; } } -#if WHERETRACE_ENABLED /* 0x20800 */ - if( sqlite3WhereTrace & 0x20000 ){ +#if WHERETRACE_ENABLED /* 0x4001 */ + if( sqlite3WhereTrace & 0x4000 ){ sqlite3DebugPrintf("All WHERE-clause terms after coding level %d:\n", iLevel); sqlite3WhereClausePrint(pWC); } - if( sqlite3WhereTrace & 0x800 ){ + if( sqlite3WhereTrace & 0x1 ){ sqlite3DebugPrintf("End Coding level %d: notReady=%llx\n", iLevel, (u64)pLevel->notReady); } @@ -150213,6 +158802,96 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( return pLevel->notReady; } +/* +** Generate the code for the loop that finds all non-matched terms +** for a RIGHT JOIN. +*/ +SQLITE_PRIVATE SQLITE_NOINLINE void sqlite3WhereRightJoinLoop( + WhereInfo *pWInfo, + int iLevel, + WhereLevel *pLevel +){ + Parse *pParse = pWInfo->pParse; + Vdbe *v = pParse->pVdbe; + WhereRightJoin *pRJ = pLevel->pRJ; + Expr *pSubWhere = 0; + WhereClause *pWC = &pWInfo->sWC; + WhereInfo *pSubWInfo; + WhereLoop *pLoop = pLevel->pWLoop; + SrcItem *pTabItem = &pWInfo->pTabList->a[pLevel->iFrom]; + SrcList sFrom; + Bitmask mAll = 0; + int k; + + ExplainQueryPlan((pParse, 1, "RIGHT-JOIN %s", pTabItem->pTab->zName)); + sqlite3VdbeNoJumpsOutsideSubrtn(v, pRJ->addrSubrtn, pRJ->endSubrtn, + pRJ->regReturn); + for(k=0; k<iLevel; k++){ + int iIdxCur; + mAll |= pWInfo->a[k].pWLoop->maskSelf; + sqlite3VdbeAddOp1(v, OP_NullRow, pWInfo->a[k].iTabCur); + iIdxCur = pWInfo->a[k].iIdxCur; + if( iIdxCur ){ + sqlite3VdbeAddOp1(v, OP_NullRow, iIdxCur); + } + } + if( (pTabItem->fg.jointype & JT_LTORJ)==0 ){ + mAll |= pLoop->maskSelf; + for(k=0; k<pWC->nTerm; k++){ + WhereTerm *pTerm = &pWC->a[k]; + if( (pTerm->wtFlags & (TERM_VIRTUAL|TERM_SLICE))!=0 + && pTerm->eOperator!=WO_ROWVAL + ){ + break; + } + if( pTerm->prereqAll & ~mAll ) continue; + if( ExprHasProperty(pTerm->pExpr, EP_OuterON|EP_InnerON) ) continue; + pSubWhere = sqlite3ExprAnd(pParse, pSubWhere, + sqlite3ExprDup(pParse->db, pTerm->pExpr, 0)); + } + } + sFrom.nSrc = 1; + sFrom.nAlloc = 1; + memcpy(&sFrom.a[0], pTabItem, sizeof(SrcItem)); + sFrom.a[0].fg.jointype = 0; + assert( pParse->withinRJSubrtn < 100 ); + pParse->withinRJSubrtn++; + pSubWInfo = sqlite3WhereBegin(pParse, &sFrom, pSubWhere, 0, 0, 0, + WHERE_RIGHT_JOIN, 0); + if( pSubWInfo ){ + int iCur = pLevel->iTabCur; + int r = ++pParse->nMem; + int nPk; + int jmp; + int addrCont = sqlite3WhereContinueLabel(pSubWInfo); + Table *pTab = pTabItem->pTab; + if( HasRowid(pTab) ){ + sqlite3ExprCodeGetColumnOfTable(v, pTab, iCur, -1, r); + nPk = 1; + }else{ + int iPk; + Index *pPk = sqlite3PrimaryKeyIndex(pTab); + nPk = pPk->nKeyCol; + pParse->nMem += nPk - 1; + for(iPk=0; iPk<nPk; iPk++){ + int iCol = pPk->aiColumn[iPk]; + sqlite3ExprCodeGetColumnOfTable(v, pTab, iCur, iCol,r+iPk); + } + } + jmp = sqlite3VdbeAddOp4Int(v, OP_Filter, pRJ->regBloom, 0, r, nPk); + VdbeCoverage(v); + sqlite3VdbeAddOp4Int(v, OP_Found, pRJ->iMatch, addrCont, r, nPk); + VdbeCoverage(v); + sqlite3VdbeJumpHere(v, jmp); + sqlite3VdbeAddOp2(v, OP_Gosub, pRJ->regReturn, pRJ->addrSubrtn); + sqlite3WhereEnd(pSubWInfo); + } + sqlite3ExprDelete(pParse->db, pSubWhere); + ExplainQueryPlanPop(pParse); + assert( pParse->withinRJSubrtn>0 ); + pParse->withinRJSubrtn--; +} + /************** End of wherecode.c *******************************************/ /************** Begin file whereexpr.c ***************************************/ /* @@ -150230,7 +158909,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( ** the WHERE clause of SQL statements. ** ** This file was originally part of where.c but was split out to improve -** readability and editabiliity. This file contains utility routines for +** readability and editability. This file contains utility routines for ** analyzing Expr objects in the WHERE clause. */ /* #include "sqliteInt.h" */ @@ -150281,7 +158960,7 @@ static int whereClauseInsert(WhereClause *pWC, Expr *p, u16 wtFlags){ if( pWC->nTerm>=pWC->nSlot ){ WhereTerm *pOld = pWC->a; sqlite3 *db = pWC->pWInfo->pParse->db; - pWC->a = sqlite3DbMallocRawNN(db, sizeof(pWC->a[0])*pWC->nSlot*2 ); + pWC->a = sqlite3WhereMalloc(pWC->pWInfo, sizeof(pWC->a[0])*pWC->nSlot*2 ); if( pWC->a==0 ){ if( wtFlags & TERM_DYNAMIC ){ sqlite3ExprDelete(db, p); @@ -150290,10 +158969,7 @@ static int whereClauseInsert(WhereClause *pWC, Expr *p, u16 wtFlags){ return 0; } memcpy(pWC->a, pOld, sizeof(pWC->a[0])*pWC->nTerm); - if( pOld!=pWC->aStatic ){ - sqlite3DbFree(db, pOld); - } - pWC->nSlot = sqlite3DbMallocSize(db, pWC->a)/sizeof(pWC->a[0]); + pWC->nSlot = pWC->nSlot*2; } pTerm = &pWC->a[idx = pWC->nTerm++]; if( (wtFlags & TERM_VIRTUAL)==0 ) pWC->nBase = pWC->nTerm; @@ -150449,7 +159125,7 @@ static int isLikeOrGlob( ** range search. The third is because the caller assumes that the pattern ** consists of at least one character after all escapes have been ** removed. */ - if( cnt!=0 && 255!=(u8)z[cnt-1] && (cnt>1 || z[0]!=wc[3]) ){ + if( (cnt>1 || (cnt>0 && z[0]!=wc[3])) && 255!=(u8)z[cnt-1] ){ Expr *pPrefix; /* A "complete" match if the pattern ends with "*" or "%" */ @@ -150486,7 +159162,7 @@ static int isLikeOrGlob( if( pLeft->op!=TK_COLUMN || sqlite3ExprAffinity(pLeft)!=SQLITE_AFF_TEXT || (ALWAYS( ExprUseYTab(pLeft) ) - && pLeft->y.pTab + && ALWAYS(pLeft->y.pTab) && IsVirtual(pLeft->y.pTab)) /* Might be numeric */ ){ int isNum; @@ -150603,8 +159279,7 @@ static int isAuxiliaryVtabOperator( ** MATCH(expression,vtab_column) */ pCol = pList->a[1].pExpr; - assert( pCol->op!=TK_COLUMN || ExprUseYTab(pCol) ); - testcase( pCol->op==TK_COLUMN && pCol->y.pTab==0 ); + assert( pCol->op!=TK_COLUMN || (ExprUseYTab(pCol) && pCol->y.pTab!=0) ); if( ExprIsVtab(pCol) ){ for(i=0; i<ArraySize(aOp); i++){ assert( !ExprHasProperty(pExpr, EP_IntValue) ); @@ -150629,7 +159304,7 @@ static int isAuxiliaryVtabOperator( */ pCol = pList->a[0].pExpr; assert( pCol->op!=TK_COLUMN || ExprUseYTab(pCol) ); - testcase( pCol->op==TK_COLUMN && pCol->y.pTab==0 ); + assert( pCol->op!=TK_COLUMN || (ExprUseYTab(pCol) && pCol->y.pTab!=0) ); if( ExprIsVtab(pCol) ){ sqlite3_vtab *pVtab; sqlite3_module *pMod; @@ -150654,13 +159329,12 @@ static int isAuxiliaryVtabOperator( int res = 0; Expr *pLeft = pExpr->pLeft; Expr *pRight = pExpr->pRight; - assert( pLeft->op!=TK_COLUMN || ExprUseYTab(pLeft) ); - testcase( pLeft->op==TK_COLUMN && pLeft->y.pTab==0 ); + assert( pLeft->op!=TK_COLUMN || (ExprUseYTab(pLeft) && pLeft->y.pTab!=0) ); if( ExprIsVtab(pLeft) ){ res++; } - assert( pRight==0 || pRight->op!=TK_COLUMN || ExprUseYTab(pRight) ); - testcase( pRight && pRight->op==TK_COLUMN && pRight->y.pTab==0 ); + assert( pRight==0 || pRight->op!=TK_COLUMN + || (ExprUseYTab(pRight) && pRight->y.pTab!=0) ); if( pRight && ExprIsVtab(pRight) ){ res++; SWAP(Expr*, pLeft, pRight); @@ -150681,9 +159355,9 @@ static int isAuxiliaryVtabOperator( ** a join, then transfer the appropriate markings over to derived. */ static void transferJoinMarkings(Expr *pDerived, Expr *pBase){ - if( pDerived ){ - pDerived->flags |= pBase->flags & EP_FromJoin; - pDerived->w.iRightJoinTable = pBase->w.iRightJoinTable; + if( pDerived && ExprHasProperty(pBase, EP_OuterON|EP_InnerON) ){ + pDerived->flags |= pBase->flags & (EP_OuterON|EP_InnerON); + pDerived->w.iJoin = pBase->w.iJoin; } } @@ -151024,7 +159698,7 @@ static void exprAnalyzeOrTerm( pOrTerm->leftCursor))==0 ){ /* This term must be of the form t1.a==t2.b where t2 is in the ** chngToIN set but t1 is not. This term will be either preceded - ** or follwed by an inverted copy (t2.b==t1.a). Skip this term + ** or followed by an inverted copy (t2.b==t1.a). Skip this term ** and use its inversion. */ testcase( pOrTerm->wtFlags & TERM_COPIED ); testcase( pOrTerm->wtFlags & TERM_VIRTUAL ); @@ -151137,7 +159811,7 @@ static int termIsEquivalence(Parse *pParse, Expr *pExpr){ CollSeq *pColl; if( !OptimizationEnabled(pParse->db, SQLITE_Transitive) ) return 0; if( pExpr->op!=TK_EQ && pExpr->op!=TK_IS ) return 0; - if( ExprHasProperty(pExpr, EP_FromJoin) ) return 0; + if( ExprHasProperty(pExpr, EP_OuterON) ) return 0; aff1 = sqlite3ExprAffinity(pExpr->pLeft); aff2 = sqlite3ExprAffinity(pExpr->pRight); if( aff1!=aff2 @@ -151168,7 +159842,9 @@ static Bitmask exprSelectUsage(WhereMaskSet *pMaskSet, Select *pS){ int i; for(i=0; i<pSrc->nSrc; i++){ mask |= exprSelectUsage(pMaskSet, pSrc->a[i].pSelect); - mask |= sqlite3WhereExprUsage(pMaskSet, pSrc->a[i].pOn); + if( pSrc->a[i].fg.isUsing==0 ){ + mask |= sqlite3WhereExprUsage(pMaskSet, pSrc->a[i].u3.pOn); + } if( pSrc->a[i].fg.isTabFunc ){ mask |= sqlite3WhereExprListUsage(pMaskSet, pSrc->a[i].u1.pFuncArg); } @@ -151194,35 +159870,40 @@ static Bitmask exprSelectUsage(WhereMaskSet *pMaskSet, Select *pS){ */ static SQLITE_NOINLINE int exprMightBeIndexed2( SrcList *pFrom, /* The FROM clause */ - Bitmask mPrereq, /* Bitmask of FROM clause terms referenced by pExpr */ int *aiCurCol, /* Write the referenced table cursor and column here */ - Expr *pExpr /* An operand of a comparison operator */ + Expr *pExpr, /* An operand of a comparison operator */ + int j /* Start looking with the j-th pFrom entry */ ){ Index *pIdx; int i; int iCur; - for(i=0; mPrereq>1; i++, mPrereq>>=1){} - iCur = pFrom->a[i].iCursor; - for(pIdx=pFrom->a[i].pTab->pIndex; pIdx; pIdx=pIdx->pNext){ - if( pIdx->aColExpr==0 ) continue; - for(i=0; i<pIdx->nKeyCol; i++){ - if( pIdx->aiColumn[i]!=XN_EXPR ) continue; - if( sqlite3ExprCompareSkip(pExpr, pIdx->aColExpr->a[i].pExpr, iCur)==0 ){ - aiCurCol[0] = iCur; - aiCurCol[1] = XN_EXPR; - return 1; + do{ + iCur = pFrom->a[j].iCursor; + for(pIdx=pFrom->a[j].pTab->pIndex; pIdx; pIdx=pIdx->pNext){ + if( pIdx->aColExpr==0 ) continue; + for(i=0; i<pIdx->nKeyCol; i++){ + if( pIdx->aiColumn[i]!=XN_EXPR ) continue; + assert( pIdx->bHasExpr ); + if( sqlite3ExprCompareSkip(pExpr,pIdx->aColExpr->a[i].pExpr,iCur)==0 + && pExpr->op!=TK_STRING + ){ + aiCurCol[0] = iCur; + aiCurCol[1] = XN_EXPR; + return 1; + } } } - } + }while( ++j < pFrom->nSrc ); return 0; } static int exprMightBeIndexed( SrcList *pFrom, /* The FROM clause */ - Bitmask mPrereq, /* Bitmask of FROM clause terms referenced by pExpr */ int *aiCurCol, /* Write the referenced table cursor & column here */ Expr *pExpr, /* An operand of a comparison operator */ int op /* The specific comparison operator */ ){ + int i; + /* If this expression is a vector to the left or right of a ** inequality constraint (>, <, >= or <=), perform the processing ** on the first element of the vector. */ @@ -151232,7 +159913,6 @@ static int exprMightBeIndexed( if( pExpr->op==TK_VECTOR && (op>=TK_GT && ALWAYS(op<=TK_GE)) ){ assert( ExprUseXList(pExpr) ); pExpr = pExpr->x.pList->a[0].pExpr; - } if( pExpr->op==TK_COLUMN ){ @@ -151240,9 +159920,16 @@ static int exprMightBeIndexed( aiCurCol[1] = pExpr->iColumn; return 1; } - if( mPrereq==0 ) return 0; /* No table references */ - if( (mPrereq&(mPrereq-1))!=0 ) return 0; /* Refs more than one table */ - return exprMightBeIndexed2(pFrom,mPrereq,aiCurCol,pExpr); + + for(i=0; i<pFrom->nSrc; i++){ + Index *pIdx; + for(pIdx=pFrom->a[i].pTab->pIndex; pIdx; pIdx=pIdx->pNext){ + if( pIdx->aColExpr ){ + return exprMightBeIndexed2(pFrom,aiCurCol,pExpr,i); + } + } + } + return 0; } @@ -151273,8 +159960,8 @@ static void exprAnalyze( WhereTerm *pTerm; /* The term to be analyzed */ WhereMaskSet *pMaskSet; /* Set of table index masks */ Expr *pExpr; /* The expression to be analyzed */ - Bitmask prereqLeft; /* Prerequesites of the pExpr->pLeft */ - Bitmask prereqAll; /* Prerequesites of pExpr */ + Bitmask prereqLeft; /* Prerequisites of the pExpr->pLeft */ + Bitmask prereqAll; /* Prerequisites of pExpr */ Bitmask extraRight = 0; /* Extra dependencies on LEFT JOIN */ Expr *pStr1 = 0; /* RHS of LIKE/GLOB operator */ int isComplete = 0; /* RHS of LIKE/GLOB ends with wildcard */ @@ -151323,18 +160010,32 @@ static void exprAnalyze( if( prereqAll!=sqlite3WhereExprUsageNN(pMaskSet, pExpr) ){ printf("\n*** Incorrect prereqAll computed for:\n"); sqlite3TreeViewExpr(0,pExpr,0); - abort(); + assert( 0 ); } #endif - if( ExprHasProperty(pExpr, EP_FromJoin) ){ - Bitmask x = sqlite3WhereGetMask(pMaskSet, pExpr->w.iRightJoinTable); - prereqAll |= x; - extraRight = x-1; /* ON clause terms may not be used with an index - ** on left table of a LEFT JOIN. Ticket #3015 */ - if( (prereqAll>>1)>=x ){ - sqlite3ErrorMsg(pParse, "ON clause references tables to its right"); - return; + if( ExprHasProperty(pExpr, EP_OuterON|EP_InnerON) ){ + Bitmask x = sqlite3WhereGetMask(pMaskSet, pExpr->w.iJoin); + if( ExprHasProperty(pExpr, EP_OuterON) ){ + prereqAll |= x; + extraRight = x-1; /* ON clause terms may not be used with an index + ** on left table of a LEFT JOIN. Ticket #3015 */ + if( (prereqAll>>1)>=x ){ + sqlite3ErrorMsg(pParse, "ON clause references tables to its right"); + return; + } + }else if( (prereqAll>>1)>=x ){ + /* The ON clause of an INNER JOIN references a table to its right. + ** Most other SQL database engines raise an error. But SQLite versions + ** 3.0 through 3.38 just put the ON clause constraint into the WHERE + ** clause and carried on. Beginning with 3.39, raise an error only + ** if there is a RIGHT or FULL JOIN in the query. This makes SQLite + ** more like other systems, and also preserves legacy. */ + if( ALWAYS(pSrc->nSrc>0) && (pSrc->a[0].fg.jointype & JT_LTORJ)!=0 ){ + sqlite3ErrorMsg(pParse, "ON clause references tables to its right"); + return; + } + ExprClearProperty(pExpr, EP_InnerON); } } pTerm->prereqAll = prereqAll; @@ -151354,7 +160055,7 @@ static void exprAnalyze( pLeft = pLeft->x.pList->a[pTerm->u.x.iField-1].pExpr; } - if( exprMightBeIndexed(pSrc, prereqLeft, aiCurCol, pLeft, op) ){ + if( exprMightBeIndexed(pSrc, aiCurCol, pLeft, op) ){ pTerm->leftCursor = aiCurCol[0]; assert( (pTerm->eOperator & (WO_OR|WO_AND))==0 ); pTerm->u.x.leftColumn = aiCurCol[1]; @@ -151362,7 +160063,7 @@ static void exprAnalyze( } if( op==TK_IS ) pTerm->wtFlags |= TERM_IS; if( pRight - && exprMightBeIndexed(pSrc, pTerm->prereqRight, aiCurCol, pRight, op) + && exprMightBeIndexed(pSrc, aiCurCol, pRight, op) && !ExprHasProperty(pRight, EP_FixedCol) ){ WhereTerm *pNew; @@ -151402,11 +160103,11 @@ static void exprAnalyze( pNew->eOperator = (operatorMask(pDup->op) + eExtraOp) & opMask; }else if( op==TK_ISNULL - && !ExprHasProperty(pExpr,EP_FromJoin) + && !ExprHasProperty(pExpr,EP_OuterON) && 0==sqlite3ExprCanBeNull(pLeft) ){ assert( !ExprHasProperty(pExpr, EP_IntValue) ); - pExpr->op = TK_TRUEFALSE; + pExpr->op = TK_TRUEFALSE; /* See tag-20230504-1 */ pExpr->u.zToken = "false"; ExprSetProperty(pExpr, EP_IsFalse); pTerm->prereqAll = 0; @@ -151473,7 +160174,7 @@ static void exprAnalyze( else if( pExpr->op==TK_NOTNULL ){ if( pExpr->pLeft->op==TK_COLUMN && pExpr->pLeft->iColumn>=0 - && !ExprHasProperty(pExpr, EP_FromJoin) + && !ExprHasProperty(pExpr, EP_OuterON) ){ Expr *pNewExpr; Expr *pLeft = pExpr->pLeft; @@ -151573,7 +160274,6 @@ static void exprAnalyze( transferJoinMarkings(pNewExpr1, pExpr); idxNew1 = whereClauseInsert(pWC, pNewExpr1, wtFlags); testcase( idxNew1==0 ); - exprAnalyze(pSrc, pWC, idxNew1); pNewExpr2 = sqlite3ExprDup(db, pLeft, 0); pNewExpr2 = sqlite3PExpr(pParse, TK_LT, sqlite3ExprAddCollateString(pParse,pNewExpr2,zCollSeqName), @@ -151581,6 +160281,7 @@ static void exprAnalyze( transferJoinMarkings(pNewExpr2, pExpr); idxNew2 = whereClauseInsert(pWC, pNewExpr2, wtFlags); testcase( idxNew2==0 ); + exprAnalyze(pSrc, pWC, idxNew1); exprAnalyze(pSrc, pWC, idxNew2); pTerm = &pWC->a[idxTerm]; if( isComplete ){ @@ -151621,7 +160322,7 @@ static void exprAnalyze( } pTerm = &pWC->a[idxTerm]; pTerm->wtFlags |= TERM_CODED|TERM_VIRTUAL; /* Disable the original */ - pTerm->eOperator = 0; + pTerm->eOperator = WO_ROWVAL; } /* If there is a vector IN term - e.g. "(a, b) IN (SELECT ...)" - create @@ -151637,7 +160338,7 @@ static void exprAnalyze( && pTerm->u.x.iField==0 && pExpr->pLeft->op==TK_VECTOR && ALWAYS( ExprUseXSelect(pExpr) ) - && pExpr->x.pSelect->pPrior==0 + && (pExpr->x.pSelect->pPrior==0 || (pExpr->x.pSelect->selFlags & SF_Values)) #ifndef SQLITE_OMIT_WINDOWFUNC && pExpr->x.pSelect->pWin==0 #endif @@ -151677,9 +160378,9 @@ static void exprAnalyze( Expr *pNewExpr; pNewExpr = sqlite3PExpr(pParse, TK_MATCH, 0, sqlite3ExprDup(db, pRight, 0)); - if( ExprHasProperty(pExpr, EP_FromJoin) && pNewExpr ){ - ExprSetProperty(pNewExpr, EP_FromJoin); - pNewExpr->w.iRightJoinTable = pExpr->w.iRightJoinTable; + if( ExprHasProperty(pExpr, EP_OuterON) && pNewExpr ){ + ExprSetProperty(pNewExpr, EP_OuterON); + pNewExpr->w.iJoin = pExpr->w.iJoin; } idxNew = whereClauseInsert(pWC, pNewExpr, TERM_VIRTUAL|TERM_DYNAMIC); testcase( idxNew==0 ); @@ -151806,9 +160507,9 @@ static void whereAddLimitExpr( ** exist only so that they may be passed to the xBestIndex method of the ** single virtual table in the FROM clause of the SELECT. */ -SQLITE_PRIVATE void sqlite3WhereAddLimit(WhereClause *pWC, Select *p){ - assert( p==0 || (p->pGroupBy==0 && (p->selFlags & SF_Aggregate)==0) ); - if( (p && p->pLimit) /* 1 */ +SQLITE_PRIVATE void SQLITE_NOINLINE sqlite3WhereAddLimit(WhereClause *pWC, Select *p){ + assert( p!=0 && p->pLimit!=0 ); /* 1 -- checked by caller */ + if( p->pGroupBy==0 && (p->selFlags & (SF_Distinct|SF_Aggregate))==0 /* 2 */ && (p->pSrc->nSrc==1 && IsVirtual(p->pSrc->a[0].pTab)) /* 3 */ ){ @@ -151822,7 +160523,14 @@ SQLITE_PRIVATE void sqlite3WhereAddLimit(WhereClause *pWC, Select *p){ /* This term is a vector operation that has been decomposed into ** other, subsequent terms. It can be ignored. See tag-20220128a */ assert( pWC->a[ii].wtFlags & TERM_VIRTUAL ); - assert( pWC->a[ii].eOperator==0 ); + assert( pWC->a[ii].eOperator==WO_ROWVAL ); + continue; + } + if( pWC->a[ii].nChild ){ + /* If this term has child terms, then they are also part of the + ** pWC->a[] array. So this term can be ignored, as a LIMIT clause + ** will only be added if each of the child terms passes the + ** (leftCursor==iCsr) test below. */ continue; } if( pWC->a[ii].leftCursor!=iCsr ) return; @@ -151834,7 +160542,7 @@ SQLITE_PRIVATE void sqlite3WhereAddLimit(WhereClause *pWC, Select *p){ Expr *pExpr = pOrderBy->a[ii].pExpr; if( pExpr->op!=TK_COLUMN ) return; if( pExpr->iTable!=iCsr ) return; - if( pOrderBy->a[ii].sortFlags & KEYINFO_ORDER_BIGNULL ) return; + if( pOrderBy->a[ii].fg.sortFlags & KEYINFO_ORDER_BIGNULL ) return; } } @@ -151901,9 +160609,6 @@ SQLITE_PRIVATE void sqlite3WhereClauseClear(WhereClause *pWC){ a++; } } - if( pWC->a!=pWC->aStatic ){ - sqlite3DbFree(db, pWC->a); - } } @@ -152030,6 +160735,7 @@ SQLITE_PRIVATE void sqlite3WhereTabFuncArgs( if( pArgs==0 ) return; for(j=k=0; j<pArgs->nExpr; j++){ Expr *pRhs; + u32 joinType; while( k<pTab->nCol && (pTab->aCol[k].colFlags & COLFLAG_HIDDEN)==0 ){k++;} if( k>=pTab->nCol ){ sqlite3ErrorMsg(pParse, "too many arguments on %s() - max %d", @@ -152046,9 +160752,15 @@ SQLITE_PRIVATE void sqlite3WhereTabFuncArgs( pRhs = sqlite3PExpr(pParse, TK_UPLUS, sqlite3ExprDup(pParse->db, pArgs->a[j].pExpr, 0), 0); pTerm = sqlite3PExpr(pParse, TK_EQ, pColRef, pRhs); - if( pItem->fg.jointype & JT_LEFT ){ - sqlite3SetJoinExpr(pTerm, pItem->iCursor); + if( pItem->fg.jointype & (JT_LEFT|JT_RIGHT) ){ + testcase( pItem->fg.jointype & JT_LEFT ); /* testtag-20230227a */ + testcase( pItem->fg.jointype & JT_RIGHT ); /* testtag-20230227b */ + joinType = EP_OuterON; + }else{ + testcase( pItem->fg.jointype & JT_LTORJ ); /* testtag-20230227c */ + joinType = EP_InnerON; } + sqlite3SetJoinExpr(pTerm, pItem->iCursor, joinType); whereClauseInsert(pWC, pTerm, TERM_DYNAMIC); } } @@ -152124,7 +160836,7 @@ SQLITE_PRIVATE int sqlite3WhereIsDistinct(WhereInfo *pWInfo){ ** block sorting is required. */ SQLITE_PRIVATE int sqlite3WhereIsOrdered(WhereInfo *pWInfo){ - return pWInfo->nOBSat; + return pWInfo->nOBSat<0 ? 0 : pWInfo->nOBSat; } /* @@ -152159,7 +160871,7 @@ SQLITE_PRIVATE int sqlite3WhereOrderByLimitOptLabel(WhereInfo *pWInfo){ } pInner = &pWInfo->a[pWInfo->nLevel-1]; assert( pInner->addrNxt!=0 ); - return pInner->addrNxt; + return pInner->pRJ ? pWInfo->iContinue : pInner->addrNxt; } /* @@ -152310,6 +161022,30 @@ SQLITE_PRIVATE Bitmask sqlite3WhereGetMask(WhereMaskSet *pMaskSet, int iCursor){ return 0; } +/* Allocate memory that is automatically freed when pWInfo is freed. +*/ +SQLITE_PRIVATE void *sqlite3WhereMalloc(WhereInfo *pWInfo, u64 nByte){ + WhereMemBlock *pBlock; + pBlock = sqlite3DbMallocRawNN(pWInfo->pParse->db, nByte+sizeof(*pBlock)); + if( pBlock ){ + pBlock->pNext = pWInfo->pMemToFree; + pBlock->sz = nByte; + pWInfo->pMemToFree = pBlock; + pBlock++; + } + return (void*)pBlock; +} +SQLITE_PRIVATE void *sqlite3WhereRealloc(WhereInfo *pWInfo, void *pOld, u64 nByte){ + void *pNew = sqlite3WhereMalloc(pWInfo, nByte); + if( pNew && pOld ){ + WhereMemBlock *pOldBlk = (WhereMemBlock*)pOld; + pOldBlk--; + assert( pOldBlk->sz<nByte ); + memcpy(pNew, pOld, pOldBlk->sz); + } + return pNew; +} + /* ** Create a new mask for cursor iCursor. ** @@ -152363,7 +161099,7 @@ static WhereTerm *whereScanNext(WhereScan *pScan){ && (iColumn!=XN_EXPR || sqlite3ExprCompareSkip(pTerm->pExpr->pLeft, pScan->pIdxExpr,iCur)==0) - && (pScan->iEquiv<=1 || !ExprHasProperty(pTerm->pExpr, EP_FromJoin)) + && (pScan->iEquiv<=1 || !ExprHasProperty(pTerm->pExpr, EP_OuterON)) ){ if( (pTerm->eOperator & WO_EQUIV)!=0 && pScan->nEquiv<ArraySize(pScan->aiCur) @@ -152711,11 +161447,22 @@ static void translateColumnToCopy( for(; iStart<iEnd; iStart++, pOp++){ if( pOp->p1!=iTabCur ) continue; if( pOp->opcode==OP_Column ){ +#ifdef SQLITE_DEBUG + if( pParse->db->flags & SQLITE_VdbeAddopTrace ){ + printf("TRANSLATE OP_Column to OP_Copy at %d\n", iStart); + } +#endif pOp->opcode = OP_Copy; pOp->p1 = pOp->p2 + iRegister; pOp->p2 = pOp->p3; pOp->p3 = 0; + pOp->p5 = 2; /* Cause the MEM_Subtype flag to be cleared */ }else if( pOp->opcode==OP_Rowid ){ +#ifdef SQLITE_DEBUG + if( pParse->db->flags & SQLITE_VdbeAddopTrace ){ + printf("TRANSLATE OP_Rowid to OP_Sequence at %d\n", iStart); + } +#endif pOp->opcode = OP_Sequence; pOp->p1 = iAutoidxCur; #ifdef SQLITE_ALLOW_ROWID_IN_VIEW @@ -152737,7 +161484,7 @@ static void translateColumnToCopy( #if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(WHERETRACE_ENABLED) static void whereTraceIndexInfoInputs(sqlite3_index_info *p){ int i; - if( !sqlite3WhereTrace ) return; + if( (sqlite3WhereTrace & 0x10)==0 ) return; for(i=0; i<p->nConstraint; i++){ sqlite3DebugPrintf( " constraint[%d]: col=%d termid=%d op=%d usabled=%d collseq=%s\n", @@ -152757,7 +161504,7 @@ static void whereTraceIndexInfoInputs(sqlite3_index_info *p){ } static void whereTraceIndexInfoOutputs(sqlite3_index_info *p){ int i; - if( !sqlite3WhereTrace ) return; + if( (sqlite3WhereTrace & 0x10)==0 ) return; for(i=0; i<p->nConstraint; i++){ sqlite3DebugPrintf(" usage[%d]: argvIdx=%d omit=%d\n", i, @@ -152775,6 +161522,43 @@ static void whereTraceIndexInfoOutputs(sqlite3_index_info *p){ #define whereTraceIndexInfoOutputs(A) #endif +/* +** We know that pSrc is an operand of an outer join. Return true if +** pTerm is a constraint that is compatible with that join. +** +** pTerm must be EP_OuterON if pSrc is the right operand of an +** outer join. pTerm can be either EP_OuterON or EP_InnerON if pSrc +** is the left operand of a RIGHT join. +** +** See https://sqlite.org/forum/forumpost/206d99a16dd9212f +** for an example of a WHERE clause constraints that may not be used on +** the right table of a RIGHT JOIN because the constraint implies a +** not-NULL condition on the left table of the RIGHT JOIN. +*/ +static int constraintCompatibleWithOuterJoin( + const WhereTerm *pTerm, /* WHERE clause term to check */ + const SrcItem *pSrc /* Table we are trying to access */ +){ + assert( (pSrc->fg.jointype&(JT_LEFT|JT_LTORJ|JT_RIGHT))!=0 ); /* By caller */ + testcase( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))==JT_LEFT ); + testcase( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))==JT_LTORJ ); + testcase( ExprHasProperty(pTerm->pExpr, EP_OuterON) ) + testcase( ExprHasProperty(pTerm->pExpr, EP_InnerON) ); + if( !ExprHasProperty(pTerm->pExpr, EP_OuterON|EP_InnerON) + || pTerm->pExpr->w.iJoin != pSrc->iCursor + ){ + return 0; + } + if( (pSrc->fg.jointype & (JT_LEFT|JT_RIGHT))!=0 + && ExprHasProperty(pTerm->pExpr, EP_InnerON) + ){ + return 0; + } + return 1; +} + + + #ifndef SQLITE_OMIT_AUTOMATIC_INDEX /* ** Return TRUE if the WHERE clause term pTerm is of a form where it @@ -152789,14 +161573,11 @@ static int termCanDriveIndex( char aff; if( pTerm->leftCursor!=pSrc->iCursor ) return 0; if( (pTerm->eOperator & (WO_EQ|WO_IS))==0 ) return 0; - if( (pSrc->fg.jointype & JT_LEFT) - && !ExprHasProperty(pTerm->pExpr, EP_FromJoin) - && (pTerm->eOperator & WO_IS) + assert( (pSrc->fg.jointype & JT_RIGHT)==0 ); + if( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))!=0 + && !constraintCompatibleWithOuterJoin(pTerm,pSrc) ){ - /* Cannot use an IS term from the WHERE clause as an index driver for - ** the RHS of a LEFT JOIN. Such a term can only be used if it is from - ** the ON clause. */ - return 0; + return 0; /* See https://sqlite.org/forum/forumpost/51e6959f61 */ } if( (pTerm->prereqRight & notReady)!=0 ) return 0; assert( (pTerm->eOperator & (WO_OR|WO_AND))==0 ); @@ -152810,6 +161591,57 @@ static int termCanDriveIndex( #ifndef SQLITE_OMIT_AUTOMATIC_INDEX + +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS +/* +** Argument pIdx represents an automatic index that the current statement +** will create and populate. Add an OP_Explain with text of the form: +** +** CREATE AUTOMATIC INDEX ON <table>(<cols>) [WHERE <expr>] +** +** This is only required if sqlite3_stmt_scanstatus() is enabled, to +** associate an SQLITE_SCANSTAT_NCYCLE and SQLITE_SCANSTAT_NLOOP +** values with. In order to avoid breaking legacy code and test cases, +** the OP_Explain is not added if this is an EXPLAIN QUERY PLAN command. +*/ +static void explainAutomaticIndex( + Parse *pParse, + Index *pIdx, /* Automatic index to explain */ + int bPartial, /* True if pIdx is a partial index */ + int *pAddrExplain /* OUT: Address of OP_Explain */ +){ + if( IS_STMT_SCANSTATUS(pParse->db) && pParse->explain!=2 ){ + Table *pTab = pIdx->pTable; + const char *zSep = ""; + char *zText = 0; + int ii = 0; + sqlite3_str *pStr = sqlite3_str_new(pParse->db); + sqlite3_str_appendf(pStr,"CREATE AUTOMATIC INDEX ON %s(", pTab->zName); + assert( pIdx->nColumn>1 ); + assert( pIdx->aiColumn[pIdx->nColumn-1]==XN_ROWID ); + for(ii=0; ii<(pIdx->nColumn-1); ii++){ + const char *zName = 0; + int iCol = pIdx->aiColumn[ii]; + + zName = pTab->aCol[iCol].zCnName; + sqlite3_str_appendf(pStr, "%s%s", zSep, zName); + zSep = ", "; + } + zText = sqlite3_str_finish(pStr); + if( zText==0 ){ + sqlite3OomFault(pParse->db); + }else{ + *pAddrExplain = sqlite3VdbeExplain( + pParse, 0, "%s)%s", zText, (bPartial ? " WHERE <expr>" : "") + ); + sqlite3_free(zText); + } + } +} +#else +# define explainAutomaticIndex(a,b,c,d) +#endif + /* ** Generate code to construct the Index object for an automatic index ** and to set up the WhereLevel object pLevel so that the code generator @@ -152817,8 +161649,7 @@ static int termCanDriveIndex( */ static SQLITE_NOINLINE void constructAutomaticIndex( Parse *pParse, /* The parsing context */ - const WhereClause *pWC, /* The WHERE clause */ - const SrcItem *pSrc, /* The FROM clause term to get the next index */ + WhereClause *pWC, /* The WHERE clause */ const Bitmask notReady, /* Mask of cursors that are not available */ WhereLevel *pLevel /* Write new index here */ ){ @@ -152839,12 +161670,17 @@ static SQLITE_NOINLINE void constructAutomaticIndex( char *zNotUsed; /* Extra space on the end of pIdx */ Bitmask idxCols; /* Bitmap of columns used for indexing */ Bitmask extraCols; /* Bitmap of additional columns */ - u8 sentWarning = 0; /* True if a warnning has been issued */ + u8 sentWarning = 0; /* True if a warning has been issued */ + u8 useBloomFilter = 0; /* True to also add a Bloom filter */ Expr *pPartial = 0; /* Partial Index Expression */ int iContinue = 0; /* Jump here to skip excluded rows */ - SrcItem *pTabItem; /* FROM clause term being indexed */ + SrcList *pTabList; /* The complete FROM clause */ + SrcItem *pSrc; /* The FROM clause term to get the next index */ int addrCounter = 0; /* Address where integer counter is initialized */ int regBase; /* Array of registers where record is assembled */ +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS + int addrExp = 0; /* Address of OP_Explain */ +#endif /* Generate code to skip over the creation and initialization of the ** transient index on 2nd and subsequent iterations of the loop. */ @@ -152855,6 +161691,8 @@ static SQLITE_NOINLINE void constructAutomaticIndex( /* Count the number of columns that will be added to the index ** and used to match WHERE clause constraints */ nKeyCol = 0; + pTabList = pWC->pWInfo->pTabList; + pSrc = &pTabList->a[pLevel->iFrom]; pTable = pSrc->pTab; pWCEnd = &pWC->a[pWC->nTerm]; pLoop = pLevel->pWLoop; @@ -152865,7 +161703,7 @@ static SQLITE_NOINLINE void constructAutomaticIndex( ** WHERE clause (or the ON clause of a LEFT join) that constrain which ** rows of the target table (pSrc) that can be used. */ if( (pTerm->wtFlags & TERM_VIRTUAL)==0 - && sqlite3ExprIsTableConstraint(pExpr, pSrc) + && sqlite3ExprIsSingleTableConstraint(pExpr, pTabList, pLevel->iFrom) ){ pPartial = sqlite3ExprAnd(pParse, pPartial, sqlite3ExprDup(pParse->db, pExpr, 0)); @@ -152906,7 +161744,11 @@ static SQLITE_NOINLINE void constructAutomaticIndex( ** original table changes and the index and table cannot both be used ** if they go out of sync. */ - extraCols = pSrc->colUsed & (~idxCols | MASKBIT(BMS-1)); + if( IsView(pTable) ){ + extraCols = ALLBITS; + }else{ + extraCols = pSrc->colUsed & (~idxCols | MASKBIT(BMS-1)); + } mxBitCol = MIN(BMS-1,pTable->nCol); testcase( pTable->nCol==BMS-1 ); testcase( pTable->nCol==BMS-2 ); @@ -152942,6 +161784,16 @@ static SQLITE_NOINLINE void constructAutomaticIndex( assert( pColl!=0 || pParse->nErr>0 ); /* TH3 collate01.800 */ pIdx->azColl[n] = pColl ? pColl->zName : sqlite3StrBINARY; n++; + if( ALWAYS(pX->pLeft!=0) + && sqlite3ExprAffinity(pX->pLeft)!=SQLITE_AFF_TEXT + ){ + /* TUNING: only use a Bloom filter on an automatic index + ** if one or more key columns has the ability to hold numeric + ** values, since strings all have the same hash in the Bloom + ** filter implementation and hence a Bloom filter on a text column + ** is not usually helpful. */ + useBloomFilter = 1; + } } } } @@ -152968,25 +161820,27 @@ static SQLITE_NOINLINE void constructAutomaticIndex( pIdx->azColl[n] = sqlite3StrBINARY; /* Create the automatic index */ + explainAutomaticIndex(pParse, pIdx, pPartial!=0, &addrExp); assert( pLevel->iIdxCur>=0 ); pLevel->iIdxCur = pParse->nTab++; sqlite3VdbeAddOp2(v, OP_OpenAutoindex, pLevel->iIdxCur, nKeyCol+1); sqlite3VdbeSetP4KeyInfo(pParse, pIdx); VdbeComment((v, "for %s", pTable->zName)); - if( OptimizationEnabled(pParse->db, SQLITE_BloomFilter) ){ + if( OptimizationEnabled(pParse->db, SQLITE_BloomFilter) && useBloomFilter ){ + sqlite3WhereExplainBloomFilter(pParse, pWC->pWInfo, pLevel); pLevel->regFilter = ++pParse->nMem; sqlite3VdbeAddOp2(v, OP_Blob, 10000, pLevel->regFilter); } /* Fill the automatic index with content */ - pTabItem = &pWC->pWInfo->pTabList->a[pLevel->iFrom]; - if( pTabItem->fg.viaCoroutine ){ - int regYield = pTabItem->regReturn; + assert( pSrc == &pWC->pWInfo->pTabList->a[pLevel->iFrom] ); + if( pSrc->fg.viaCoroutine ){ + int regYield = pSrc->regReturn; addrCounter = sqlite3VdbeAddOp2(v, OP_Integer, 0, 0); - sqlite3VdbeAddOp3(v, OP_InitCoroutine, regYield, 0, pTabItem->addrFillSub); + sqlite3VdbeAddOp3(v, OP_InitCoroutine, regYield, 0, pSrc->addrFillSub); addrTop = sqlite3VdbeAddOp1(v, OP_Yield, regYield); VdbeCoverage(v); - VdbeComment((v, "next row of %s", pTabItem->pTab->zName)); + VdbeComment((v, "next row of %s", pSrc->pTab->zName)); }else{ addrTop = sqlite3VdbeAddOp1(v, OP_Rewind, pLevel->iTabCur); VdbeCoverage(v); } @@ -153003,17 +161857,18 @@ static SQLITE_NOINLINE void constructAutomaticIndex( sqlite3VdbeAddOp4Int(v, OP_FilterAdd, pLevel->regFilter, 0, regBase, pLoop->u.btree.nEq); } + sqlite3VdbeScanStatusCounters(v, addrExp, addrExp, sqlite3VdbeCurrentAddr(v)); sqlite3VdbeAddOp2(v, OP_IdxInsert, pLevel->iIdxCur, regRecord); sqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT); if( pPartial ) sqlite3VdbeResolveLabel(v, iContinue); - if( pTabItem->fg.viaCoroutine ){ + if( pSrc->fg.viaCoroutine ){ sqlite3VdbeChangeP2(v, addrCounter, regBase+n); testcase( pParse->db->mallocFailed ); assert( pLevel->iIdxCur>0 ); translateColumnToCopy(pParse, addrTop, pLevel->iTabCur, - pTabItem->regResult, pLevel->iIdxCur); + pSrc->regResult, pLevel->iIdxCur); sqlite3VdbeGoto(v, addrTop); - pTabItem->fg.viaCoroutine = 0; + pSrc->fg.viaCoroutine = 0; }else{ sqlite3VdbeAddOp2(v, OP_Next, pLevel->iTabCur, addrTop+1); VdbeCoverage(v); sqlite3VdbeChangeP5(v, SQLITE_STMTSTATUS_AUTOINDEX); @@ -153023,6 +161878,7 @@ static SQLITE_NOINLINE void constructAutomaticIndex( /* Jump here when skipping the initialization */ sqlite3VdbeJumpHere(v, addrInit); + sqlite3VdbeScanStatusRange(v, addrExp, addrExp, -1); end_auto_index_create: sqlite3ExprDelete(pParse->db, pPartial); @@ -153064,16 +161920,26 @@ static SQLITE_NOINLINE void sqlite3ConstructBloomFilter( Vdbe *v = pParse->pVdbe; /* VDBE under construction */ WhereLoop *pLoop = pLevel->pWLoop; /* The loop being coded */ int iCur; /* Cursor for table getting the filter */ + IndexedExpr *saved_pIdxEpr; /* saved copy of Parse.pIdxEpr */ + IndexedExpr *saved_pIdxPartExpr; /* saved copy of Parse.pIdxPartExpr */ + + saved_pIdxEpr = pParse->pIdxEpr; + saved_pIdxPartExpr = pParse->pIdxPartExpr; + pParse->pIdxEpr = 0; + pParse->pIdxPartExpr = 0; assert( pLoop!=0 ); assert( v!=0 ); assert( pLoop->wsFlags & WHERE_BLOOMFILTER ); + assert( (pLoop->wsFlags & WHERE_IDX_ONLY)==0 ); addrOnce = sqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v); do{ + const SrcList *pTabList; const SrcItem *pItem; const Table *pTab; u64 sz; + int iSrc; sqlite3WhereExplainBloomFilter(pParse, pWInfo, pLevel); addrCont = sqlite3VdbeMakeLabel(pParse); iCur = pLevel->iTabCur; @@ -153087,7 +161953,9 @@ static SQLITE_NOINLINE void sqlite3ConstructBloomFilter( ** testing complicated. By basing the blob size on the value in the ** sqlite_stat1 table, testing is much easier. */ - pItem = &pWInfo->pTabList->a[pLevel->iFrom]; + pTabList = pWInfo->pTabList; + iSrc = pLevel->iFrom; + pItem = &pTabList->a[iSrc]; assert( pItem!=0 ); pTab = pItem->pTab; assert( pTab!=0 ); @@ -153104,7 +161972,7 @@ static SQLITE_NOINLINE void sqlite3ConstructBloomFilter( for(pTerm=pWInfo->sWC.a; pTerm<pWCEnd; pTerm++){ Expr *pExpr = pTerm->pExpr; if( (pTerm->wtFlags & TERM_VIRTUAL)==0 - && sqlite3ExprIsTableConstraint(pExpr, pItem) + && sqlite3ExprIsSingleTableConstraint(pExpr, pTabList, iSrc) ){ sqlite3ExprIfFalse(pParse, pTerm->pExpr, addrCont, SQLITE_JUMPIFNULL); } @@ -153120,9 +161988,8 @@ static SQLITE_NOINLINE void sqlite3ConstructBloomFilter( int r1 = sqlite3GetTempRange(pParse, n); int jj; for(jj=0; jj<n; jj++){ - int iCol = pIdx->aiColumn[jj]; assert( pIdx->pTable==pItem->pTab ); - sqlite3ExprCodeGetColumnOfTable(v, pIdx->pTable, iCur, iCol,r1+jj); + sqlite3ExprCodeLoadIndexColumn(pParse, pIdx, iCur, jj, r1+jj); } sqlite3VdbeAddOp4Int(v, OP_FilterAdd, pLevel->regFilter, 0, r1, n); sqlite3ReleaseTempRange(pParse, r1, n); @@ -153137,7 +162004,7 @@ static SQLITE_NOINLINE void sqlite3ConstructBloomFilter( const SrcItem *pTabItem; pLevel = &pWInfo->a[iLevel]; pTabItem = &pWInfo->pTabList->a[pLevel->iFrom]; - if( pTabItem->fg.jointype & JT_LEFT ) continue; + if( pTabItem->fg.jointype & (JT_LEFT|JT_LTORJ) ) continue; pLoop = pLevel->pWLoop; if( NEVER(pLoop==0) ) continue; if( pLoop->prereq & notReady ) continue; @@ -153153,6 +162020,8 @@ static SQLITE_NOINLINE void sqlite3ConstructBloomFilter( } }while( iLevel < pWInfo->nLevel ); sqlite3VdbeJumpHere(v, addrOnce); + pParse->pIdxEpr = saved_pIdxEpr; + pParse->pIdxPartExpr = saved_pIdxPartExpr; } @@ -153208,12 +162077,8 @@ static sqlite3_index_info *allocateIndexInfo( assert( (pTerm->eOperator & (WO_OR|WO_AND))==0 ); assert( pTerm->u.x.leftColumn>=XN_ROWID ); assert( pTerm->u.x.leftColumn<pTab->nCol ); - - /* tag-20191211-002: WHERE-clause constraints are not useful to the - ** right-hand table of a LEFT JOIN. See tag-20191211-001 for the - ** equivalent restriction for ordinary tables. */ - if( (pSrc->fg.jointype & JT_LEFT)!=0 - && !ExprHasProperty(pTerm->pExpr, EP_FromJoin) + if( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))!=0 + && !constraintCompatibleWithOuterJoin(pTerm,pSrc) ){ continue; } @@ -153238,7 +162103,7 @@ static sqlite3_index_info *allocateIndexInfo( } /* Virtual tables are unable to deal with NULLS FIRST */ - if( pOrderBy->a[i].sortFlags & KEYINFO_ORDER_BIGNULL ) break; + if( pOrderBy->a[i].fg.sortFlags & KEYINFO_ORDER_BIGNULL ) break; /* First case - a direct column references without a COLLATE operator */ if( pExpr->op==TK_COLUMN && pExpr->iTable==pSrc->iCursor ){ @@ -153268,8 +162133,10 @@ static sqlite3_index_info *allocateIndexInfo( } if( i==n ){ nOrderBy = n; - if( (pWInfo->wctrlFlags & (WHERE_GROUPBY|WHERE_DISTINCTBY)) ){ - eDistinct = 1 + ((pWInfo->wctrlFlags & WHERE_DISTINCTBY)!=0); + if( (pWInfo->wctrlFlags & WHERE_DISTINCTBY) ){ + eDistinct = 2 + ((pWInfo->wctrlFlags & WHERE_SORTBYGROUP)!=0); + }else if( pWInfo->wctrlFlags & WHERE_GROUPBY ){ + eDistinct = 1; } } } @@ -153348,7 +162215,7 @@ static sqlite3_index_info *allocateIndexInfo( || (pExpr->op==TK_COLLATE && pExpr->pLeft->op==TK_COLUMN && pExpr->iColumn==pExpr->pLeft->iColumn) ); pIdxOrderBy[j].iColumn = pExpr->iColumn; - pIdxOrderBy[j].desc = pOrderBy->a[i].sortFlags & KEYINFO_ORDER_DESC; + pIdxOrderBy[j].desc = pOrderBy->a[i].fg.sortFlags & KEYINFO_ORDER_DESC; j++; } pIdxInfo->nOrderBy = j; @@ -153410,6 +162277,9 @@ static int vtabBestIndex(Parse *pParse, Table *pTab, sqlite3_index_info *p){ sqlite3ErrorMsg(pParse, "%s", pVtab->zErrMsg); } } + if( pTab->u.vtab.p->bAllSchemas ){ + sqlite3VtabUsesAllSchemas(pParse); + } sqlite3_free(pVtab->zErrMsg); pVtab->zErrMsg = 0; return rc; @@ -153452,7 +162322,8 @@ static int whereKeyStats( #endif assert( pRec!=0 ); assert( pIdx->nSample>0 ); - assert( pRec->nField>0 && pRec->nField<=pIdx->nSampleCol ); + assert( pRec->nField>0 ); + /* Do a binary search to find the first sample greater than or equal ** to pRec. If pRec contains a single field, the set of samples to search @@ -153498,7 +162369,12 @@ static int whereKeyStats( ** it is extended to two fields. The duplicates that this creates do not ** cause any problems. */ - nField = pRec->nField; + if( !HasRowid(pIdx->pTable) && IsPrimaryKeyIndex(pIdx) ){ + nField = pIdx->nKeyCol; + }else{ + nField = pIdx->nColumn; + } + nField = MIN(pRec->nField, nField); iCol = 0; iSample = pIdx->nSample * nField; do{ @@ -153564,12 +162440,12 @@ static int whereKeyStats( if( iCol>0 ){ pRec->nField = iCol; assert( sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec)<=0 - || pParse->db->mallocFailed ); + || pParse->db->mallocFailed || CORRUPT_DB ); } if( i>0 ){ pRec->nField = nField; assert( sqlite3VdbeRecordCompare(aSample[i-1].n, aSample[i-1].p, pRec)<0 - || pParse->db->mallocFailed ); + || pParse->db->mallocFailed || CORRUPT_DB ); } } } @@ -153586,7 +162462,7 @@ static int whereKeyStats( ** is larger than all samples in the array. */ tRowcnt iUpper, iGap; if( i>=pIdx->nSample ){ - iUpper = sqlite3LogEstToInt(pIdx->aiRowLogEst[0]); + iUpper = pIdx->nRowEst0; }else{ iUpper = aSample[i].anLt[iCol]; } @@ -153661,7 +162537,7 @@ SQLITE_PRIVATE char sqlite3IndexColumnAffinity(sqlite3 *db, Index *pIdx, int iCo ** Value pLoop->nOut is currently set to the estimated number of rows ** visited for scanning (a=? AND b=?). This function reduces that estimate ** by some factor to account for the (c BETWEEN ? AND ?) expression based -** on the stat4 data for the index. this scan will be peformed multiple +** on the stat4 data for the index. this scan will be performed multiple ** times (once for each (a,b) combination that matches a=?) is dealt with ** by the caller. ** @@ -153742,7 +162618,7 @@ static int whereRangeSkipScanEst( int nAdjust = (sqlite3LogEst(p->nSample) - sqlite3LogEst(nDiff)); pLoop->nOut -= nAdjust; *pbDone = 1; - WHERETRACE(0x10, ("range skip-scan regions: %u..%u adjust=%d est=%d\n", + WHERETRACE(0x20, ("range skip-scan regions: %u..%u adjust=%d est=%d\n", nLower, nUpper, nAdjust*-1, pLoop->nOut)); } @@ -153913,14 +162789,15 @@ static int whereRangeScanEst( ** sample, then assume they are 4x more selective. This brings ** the estimated selectivity more in line with what it would be ** if estimated without the use of STAT4 tables. */ - if( iLwrIdx==iUprIdx ) nNew -= 20; assert( 20==sqlite3LogEst(4) ); + if( iLwrIdx==iUprIdx ){ nNew -= 20; } + assert( 20==sqlite3LogEst(4) ); }else{ nNew = 10; assert( 10==sqlite3LogEst(2) ); } if( nNew<nOut ){ nOut = nNew; } - WHERETRACE(0x10, ("STAT4 range scan: %u..%u est=%d\n", + WHERETRACE(0x20, ("STAT4 range scan: %u..%u est=%d\n", (u32)iLower, (u32)iUpper, nOut)); } }else{ @@ -153934,7 +162811,7 @@ static int whereRangeScanEst( UNUSED_PARAMETER(pBuilder); assert( pLower || pUpper ); #endif - assert( pUpper==0 || (pUpper->wtFlags & TERM_VNULL)==0 ); + assert( pUpper==0 || (pUpper->wtFlags & TERM_VNULL)==0 || pParse->nErr>0 ); nNew = whereRangeAdjust(pLower, nOut); nNew = whereRangeAdjust(pUpper, nNew); @@ -153953,7 +162830,7 @@ static int whereRangeScanEst( if( nNew<nOut ) nOut = nNew; #if defined(WHERETRACE_ENABLED) if( pLoop->nOut>nOut ){ - WHERETRACE(0x10,("Range scan lowers nOut from %d to %d\n", + WHERETRACE(0x20,("Range scan lowers nOut from %d to %d\n", pLoop->nOut, nOut)); } #endif @@ -154018,7 +162895,7 @@ static int whereEqualScanEst( pBuilder->nRecValid = nEq; whereKeyStats(pParse, p, pRec, 0, a); - WHERETRACE(0x10,("equality scan regions %s(%d): %d\n", + WHERETRACE(0x20,("equality scan regions %s(%d): %d\n", p->zName, nEq-1, (int)a[1])); *pnRow = a[1]; @@ -154066,9 +162943,9 @@ static int whereInScanEst( } if( rc==SQLITE_OK ){ - if( nRowEst > nRow0 ) nRowEst = nRow0; + if( nRowEst > (tRowcnt)nRow0 ) nRowEst = nRow0; *pnRow = nRowEst; - WHERETRACE(0x10,("IN row estimate: est=%d\n", nRowEst)); + WHERETRACE(0x20,("IN row estimate: est=%d\n", nRowEst)); } assert( pBuilder->nRecValid==nRecValid ); return rc; @@ -154089,7 +162966,7 @@ SQLITE_PRIVATE void sqlite3WhereTermPrint(WhereTerm *pTerm, int iTerm){ memcpy(zType, "....", 5); if( pTerm->wtFlags & TERM_VIRTUAL ) zType[0] = 'V'; if( pTerm->eOperator & WO_EQUIV ) zType[1] = 'E'; - if( ExprHasProperty(pTerm->pExpr, EP_FromJoin) ) zType[2] = 'L'; + if( ExprHasProperty(pTerm->pExpr, EP_OuterON) ) zType[2] = 'L'; if( pTerm->wtFlags & TERM_CODED ) zType[3] = 'C'; if( pTerm->eOperator & WO_SINGLE ){ assert( (pTerm->eOperator & (WO_OR|WO_AND))==0 ); @@ -154137,17 +163014,34 @@ SQLITE_PRIVATE void sqlite3WhereClausePrint(WhereClause *pWC){ #ifdef WHERETRACE_ENABLED /* ** Print a WhereLoop object for debugging purposes -*/ -SQLITE_PRIVATE void sqlite3WhereLoopPrint(WhereLoop *p, WhereClause *pWC){ - WhereInfo *pWInfo = pWC->pWInfo; - int nb = 1+(pWInfo->pTabList->nSrc+3)/4; - SrcItem *pItem = pWInfo->pTabList->a + p->iTab; - Table *pTab = pItem->pTab; - Bitmask mAll = (((Bitmask)1)<<(nb*4)) - 1; - sqlite3DebugPrintf("%c%2d.%0*llx.%0*llx", p->cId, - p->iTab, nb, p->maskSelf, nb, p->prereq & mAll); - sqlite3DebugPrintf(" %12s", - pItem->zAlias ? pItem->zAlias : pTab->zName); +** +** Format example: +** +** .--- Position in WHERE clause rSetup, rRun, nOut ---. +** | | +** | .--- selfMask nTerm ------. | +** | | | | +** | | .-- prereq Idx wsFlags----. | | +** | | | Name | | | +** | | | __|__ nEq ---. ___|__ | __|__ +** | / \ / \ / \ | / \ / \ / \ +** 1.002.001 t2.t2xy 2 f 010241 N 2 cost 0,56,31 +*/ +SQLITE_PRIVATE void sqlite3WhereLoopPrint(const WhereLoop *p, const WhereClause *pWC){ + if( pWC ){ + WhereInfo *pWInfo = pWC->pWInfo; + int nb = 1+(pWInfo->pTabList->nSrc+3)/4; + SrcItem *pItem = pWInfo->pTabList->a + p->iTab; + Table *pTab = pItem->pTab; + Bitmask mAll = (((Bitmask)1)<<(nb*4)) - 1; + sqlite3DebugPrintf("%c%2d.%0*llx.%0*llx", p->cId, + p->iTab, nb, p->maskSelf, nb, p->prereq & mAll); + sqlite3DebugPrintf(" %12s", + pItem->zAlias ? pItem->zAlias : pTab->zName); + }else{ + sqlite3DebugPrintf("%c%2d.%03llx.%03llx %c%d", + p->cId, p->iTab, p->maskSelf, p->prereq & 0xfff, p->cId, p->iTab); + } if( (p->wsFlags & WHERE_VIRTUALTABLE)==0 ){ const char *zName; if( p->u.btree.pIndex && (zName = p->u.btree.pIndex->zName)!=0 ){ @@ -154177,13 +163071,22 @@ SQLITE_PRIVATE void sqlite3WhereLoopPrint(WhereLoop *p, WhereClause *pWC){ sqlite3DebugPrintf(" f %06x N %d", p->wsFlags, p->nLTerm); } sqlite3DebugPrintf(" cost %d,%d,%d\n", p->rSetup, p->rRun, p->nOut); - if( p->nLTerm && (sqlite3WhereTrace & 0x100)!=0 ){ + if( p->nLTerm && (sqlite3WhereTrace & 0x4000)!=0 ){ int i; for(i=0; i<p->nLTerm; i++){ sqlite3WhereTermPrint(p->aLTerm[i], i); } } } +SQLITE_PRIVATE void sqlite3ShowWhereLoop(const WhereLoop *p){ + if( p ) sqlite3WhereLoopPrint(p, 0); +} +SQLITE_PRIVATE void sqlite3ShowWhereLoopList(const WhereLoop *p){ + while( p ){ + sqlite3ShowWhereLoop(p); + p = p->pNextLoop; + } +} #endif /* @@ -154215,12 +163118,18 @@ static void whereLoopClearUnion(sqlite3 *db, WhereLoop *p){ } /* -** Deallocate internal memory used by a WhereLoop object +** Deallocate internal memory used by a WhereLoop object. Leave the +** object in an initialized state, as if it had been newly allocated. */ static void whereLoopClear(sqlite3 *db, WhereLoop *p){ - if( p->aLTerm!=p->aLTermSpace ) sqlite3DbFreeNN(db, p->aLTerm); + if( p->aLTerm!=p->aLTermSpace ){ + sqlite3DbFreeNN(db, p->aLTerm); + p->aLTerm = p->aLTermSpace; + p->nLSlot = ArraySize(p->aLTermSpace); + } whereLoopClearUnion(db, p); - whereLoopInit(p); + p->nLTerm = 0; + p->wsFlags = 0; } /* @@ -154244,7 +163153,9 @@ static int whereLoopResize(sqlite3 *db, WhereLoop *p, int n){ */ static int whereLoopXfer(sqlite3 *db, WhereLoop *pTo, WhereLoop *pFrom){ whereLoopClearUnion(db, pTo); - if( whereLoopResize(db, pTo, pFrom->nLTerm) ){ + if( pFrom->nLTerm > pTo->nLSlot + && whereLoopResize(db, pTo, pFrom->nLTerm) + ){ memset(pTo, 0, WHERE_LOOP_XFER_SZ); return SQLITE_NOMEM_BKPT; } @@ -154262,85 +163173,86 @@ static int whereLoopXfer(sqlite3 *db, WhereLoop *pTo, WhereLoop *pFrom){ ** Delete a WhereLoop object */ static void whereLoopDelete(sqlite3 *db, WhereLoop *p){ + assert( db!=0 ); whereLoopClear(db, p); - sqlite3DbFreeNN(db, p); + sqlite3DbNNFreeNN(db, p); } /* ** Free a WhereInfo structure */ static void whereInfoFree(sqlite3 *db, WhereInfo *pWInfo){ - int i; assert( pWInfo!=0 ); - for(i=0; i<pWInfo->nLevel; i++){ - WhereLevel *pLevel = &pWInfo->a[i]; - if( pLevel->pWLoop && (pLevel->pWLoop->wsFlags & WHERE_IN_ABLE)!=0 ){ - assert( (pLevel->pWLoop->wsFlags & WHERE_MULTI_OR)==0 ); - sqlite3DbFree(db, pLevel->u.in.aInLoop); - } - } + assert( db!=0 ); sqlite3WhereClauseClear(&pWInfo->sWC); while( pWInfo->pLoops ){ WhereLoop *p = pWInfo->pLoops; pWInfo->pLoops = p->pNextLoop; whereLoopDelete(db, p); } - assert( pWInfo->pExprMods==0 ); - sqlite3DbFreeNN(db, pWInfo); -} - -/* Undo all Expr node modifications -*/ -static void whereUndoExprMods(WhereInfo *pWInfo){ - while( pWInfo->pExprMods ){ - WhereExprMod *p = pWInfo->pExprMods; - pWInfo->pExprMods = p->pNext; - memcpy(p->pExpr, &p->orig, sizeof(p->orig)); - sqlite3DbFree(pWInfo->pParse->db, p); + while( pWInfo->pMemToFree ){ + WhereMemBlock *pNext = pWInfo->pMemToFree->pNext; + sqlite3DbNNFreeNN(db, pWInfo->pMemToFree); + pWInfo->pMemToFree = pNext; } + sqlite3DbNNFreeNN(db, pWInfo); } /* -** Return TRUE if all of the following are true: +** Return TRUE if X is a proper subset of Y but is of equal or less cost. +** In other words, return true if all constraints of X are also part of Y +** and Y has additional constraints that might speed the search that X lacks +** but the cost of running X is not more than the cost of running Y. +** +** In other words, return true if the cost relationwship between X and Y +** is inverted and needs to be adjusted. +** +** Case 1: +** +** (1a) X and Y use the same index. +** (1b) X has fewer == terms than Y +** (1c) Neither X nor Y use skip-scan +** (1d) X does not have a a greater cost than Y ** -** (1) X has the same or lower cost, or returns the same or fewer rows, -** than Y. -** (2) X uses fewer WHERE clause terms than Y -** (3) Every WHERE clause term used by X is also used by Y -** (4) X skips at least as many columns as Y -** (5) If X is a covering index, than Y is too +** Case 2: ** -** Conditions (2) and (3) mean that X is a "proper subset" of Y. -** If X is a proper subset of Y then Y is a better choice and ought -** to have a lower cost. This routine returns TRUE when that cost -** relationship is inverted and needs to be adjusted. Constraint (4) -** was added because if X uses skip-scan less than Y it still might -** deserve a lower cost even if it is a proper subset of Y. Constraint (5) -** was added because a covering index probably deserves to have a lower cost -** than a non-covering index even if it is a proper subset. +** (2a) X has the same or lower cost, or returns the same or fewer rows, +** than Y. +** (2b) X uses fewer WHERE clause terms than Y +** (2c) Every WHERE clause term used by X is also used by Y +** (2d) X skips at least as many columns as Y +** (2e) If X is a covering index, than Y is too */ static int whereLoopCheaperProperSubset( const WhereLoop *pX, /* First WhereLoop to compare */ const WhereLoop *pY /* Compare against this WhereLoop */ ){ int i, j; + if( pX->rRun>pY->rRun && pX->nOut>pY->nOut ) return 0; /* (1d) and (2a) */ + assert( (pX->wsFlags & WHERE_VIRTUALTABLE)==0 ); + assert( (pY->wsFlags & WHERE_VIRTUALTABLE)==0 ); + if( pX->u.btree.nEq < pY->u.btree.nEq /* (1b) */ + && pX->u.btree.pIndex==pY->u.btree.pIndex /* (1a) */ + && pX->nSkip==0 && pY->nSkip==0 /* (1c) */ + ){ + return 1; /* Case 1 is true */ + } if( pX->nLTerm-pX->nSkip >= pY->nLTerm-pY->nSkip ){ - return 0; /* X is not a subset of Y */ + return 0; /* (2b) */ } - if( pX->rRun>pY->rRun && pX->nOut>pY->nOut ) return 0; - if( pY->nSkip > pX->nSkip ) return 0; + if( pY->nSkip > pX->nSkip ) return 0; /* (2d) */ for(i=pX->nLTerm-1; i>=0; i--){ if( pX->aLTerm[i]==0 ) continue; for(j=pY->nLTerm-1; j>=0; j--){ if( pY->aLTerm[j]==pX->aLTerm[i] ) break; } - if( j<0 ) return 0; /* X not a subset of Y since term X[i] not used by Y */ + if( j<0 ) return 0; /* (2c) */ } if( (pX->wsFlags&WHERE_IDX_ONLY)!=0 && (pY->wsFlags&WHERE_IDX_ONLY)==0 ){ - return 0; /* Constraint (5) */ + return 0; /* (2e) */ } - return 1; /* All conditions meet */ + return 1; /* Case 2 is true */ } /* @@ -154421,7 +163333,7 @@ static WhereLoop **whereLoopFindLesser( ** rSetup. Call this SETUP-INVARIANT */ assert( p->rSetup>=pTemplate->rSetup ); - /* Any loop using an appliation-defined index (or PRIMARY KEY or + /* Any loop using an application-defined index (or PRIMARY KEY or ** UNIQUE constraint) with one or more == constraints is better ** than an automatic index. Unless it is a skip-scan. */ if( (p->wsFlags & WHERE_AUTO_INDEX)!=0 @@ -154448,7 +163360,7 @@ static WhereLoop **whereLoopFindLesser( /* If pTemplate is always better than p, then cause p to be overwritten ** with pTemplate. pTemplate is better than p if: - ** (1) pTemplate has no more dependences than p, and + ** (1) pTemplate has no more dependencies than p, and ** (2) pTemplate has an equal or lower cost than p. */ if( (p->prereq & pTemplate->prereq)==pTemplate->prereq /* (1) */ @@ -154566,7 +163478,7 @@ static int whereLoopInsert(WhereLoopBuilder *pBuilder, WhereLoop *pTemplate){ }else{ /* We will be overwriting WhereLoop p[]. But before we do, first ** go through the rest of the list and delete any other entries besides - ** p[] that are also supplated by pTemplate */ + ** p[] that are also supplanted by pTemplate */ WhereLoop **ppTail = &p->pNextLoop; WhereLoop *pToDel; while( *ppTail ){ @@ -154646,6 +163558,7 @@ static void whereLoopOutputAdjust( if( pX->iParent>=0 && (&pWC->a[pX->iParent])==pTerm ) break; } if( j<0 ){ + sqlite3ProgressCheck(pWC->pWInfo->pParse); if( pLoop->maskSelf==pTerm->prereqAll ){ /* If there are extra terms in the WHERE clause not used by an index ** that depend only on the table being scanned, and that will tend to @@ -154654,10 +163567,11 @@ static void whereLoopOutputAdjust( ** ** 2022-03-24: Self-culling only applies if either the extra terms ** are straight comparison operators that are non-true with NULL - ** operand, or if the loop is not a LEFT JOIN. + ** operand, or if the loop is not an OUTER JOIN. */ if( (pTerm->eOperator & 0x3f)!=0 - || (pWC->pWInfo->pTabList->a[pLoop->iTab].fg.jointype & JT_LEFT)==0 + || (pWC->pWInfo->pTabList->a[pLoop->iTab].fg.jointype + & (JT_LEFT|JT_LTORJ))==0 ){ pLoop->wsFlags |= WHERE_SELFCULL; } @@ -154764,7 +163678,7 @@ static int whereRangeVectorLen( } /* -** Adjust the cost C by the costMult facter T. This only occurs if +** Adjust the cost C by the costMult factor T. This only occurs if ** compiled with -DSQLITE_ENABLE_COSTMULT */ #ifdef SQLITE_ENABLE_COSTMULT @@ -154791,7 +163705,7 @@ static int whereLoopAddBtreeIndex( Index *pProbe, /* An index on pSrc */ LogEst nInMul /* log(Number of iterations due to IN) */ ){ - WhereInfo *pWInfo = pBuilder->pWInfo; /* WHERE analyse context */ + WhereInfo *pWInfo = pBuilder->pWInfo; /* WHERE analyze context */ Parse *pParse = pWInfo->pParse; /* Parsing context */ sqlite3 *db = pParse->db; /* Database connection malloc context */ WhereLoop *pNew; /* Template WhereLoop under construction */ @@ -154812,7 +163726,10 @@ static int whereLoopAddBtreeIndex( WhereTerm *pTop = 0, *pBtm = 0; /* Top and bottom range constraints */ pNew = pBuilder->pNew; - if( db->mallocFailed ) return SQLITE_NOMEM_BKPT; + assert( db->mallocFailed==0 || pParse->nErr>0 ); + if( pParse->nErr ){ + return pParse->rc; + } WHERETRACE(0x800, ("BEGIN %s.addBtreeIdx(%s), nEq=%d, nSkip=%d, rRun=%d\n", pProbe->pTable->zName,pProbe->zName, pNew->u.btree.nEq, pNew->nSkip, pNew->rRun)); @@ -154825,7 +163742,10 @@ static int whereLoopAddBtreeIndex( assert( pNew->u.btree.nBtm==0 ); opMask = WO_EQ|WO_IN|WO_GT|WO_GE|WO_LT|WO_LE|WO_ISNULL|WO_IS; } - if( pProbe->bUnordered ) opMask &= ~(WO_GT|WO_GE|WO_LT|WO_LE); + if( pProbe->bUnordered || pProbe->bLowQual ){ + if( pProbe->bUnordered ) opMask &= ~(WO_GT|WO_GE|WO_LT|WO_LE); + if( pProbe->bLowQual ) opMask &= ~(WO_EQ|WO_IN|WO_IS); + } assert( pNew->u.btree.nEq<pProbe->nColumn ); assert( pNew->u.btree.nEq<pProbe->nKeyCol @@ -154863,15 +163783,11 @@ static int whereLoopAddBtreeIndex( ** to mix with a lower range bound from some other source */ if( pTerm->wtFlags & TERM_LIKEOPT && pTerm->eOperator==WO_LT ) continue; - /* tag-20191211-001: Do not allow constraints from the WHERE clause to - ** be used by the right table of a LEFT JOIN. Only constraints in the - ** ON clause are allowed. See tag-20191211-002 for the vtab equivalent. */ - if( (pSrc->fg.jointype & JT_LEFT)!=0 - && !ExprHasProperty(pTerm->pExpr, EP_FromJoin) + if( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))!=0 + && !constraintCompatibleWithOuterJoin(pTerm,pSrc) ){ continue; } - if( IsUniqueIndex(pProbe) && saved_nEq==pProbe->nKeyCol-1 ){ pBuilder->bldFlags1 |= SQLITE_BLDF1_UNIQUE; }else{ @@ -154882,7 +163798,11 @@ static int whereLoopAddBtreeIndex( pNew->u.btree.nBtm = saved_nBtm; pNew->u.btree.nTop = saved_nTop; pNew->nLTerm = saved_nLTerm; - if( whereLoopResize(db, pNew, pNew->nLTerm+1) ) break; /* OOM */ + if( pNew->nLTerm>=pNew->nLSlot + && whereLoopResize(db, pNew, pNew->nLTerm+1) + ){ + break; /* OOM while trying to enlarge the pNew->aLTerm array */ + } pNew->aLTerm[pNew->nLTerm++] = pTerm; pNew->prereq = (saved_prereq | pTerm->prereqRight) & ~pNew->maskSelf; @@ -154975,38 +163895,39 @@ static int whereLoopAddBtreeIndex( if( scan.iEquiv>1 ) pNew->wsFlags |= WHERE_TRANSCONS; }else if( eOp & WO_ISNULL ){ pNew->wsFlags |= WHERE_COLUMN_NULL; - }else if( eOp & (WO_GT|WO_GE) ){ - testcase( eOp & WO_GT ); - testcase( eOp & WO_GE ); - pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_BTM_LIMIT; - pNew->u.btree.nBtm = whereRangeVectorLen( - pParse, pSrc->iCursor, pProbe, saved_nEq, pTerm - ); - pBtm = pTerm; - pTop = 0; - if( pTerm->wtFlags & TERM_LIKEOPT ){ - /* Range constraints that come from the LIKE optimization are - ** always used in pairs. */ - pTop = &pTerm[1]; - assert( (pTop-(pTerm->pWC->a))<pTerm->pWC->nTerm ); - assert( pTop->wtFlags & TERM_LIKEOPT ); - assert( pTop->eOperator==WO_LT ); - if( whereLoopResize(db, pNew, pNew->nLTerm+1) ) break; /* OOM */ - pNew->aLTerm[pNew->nLTerm++] = pTop; - pNew->wsFlags |= WHERE_TOP_LIMIT; - pNew->u.btree.nTop = 1; - } - }else{ - assert( eOp & (WO_LT|WO_LE) ); - testcase( eOp & WO_LT ); - testcase( eOp & WO_LE ); - pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_TOP_LIMIT; - pNew->u.btree.nTop = whereRangeVectorLen( + }else{ + int nVecLen = whereRangeVectorLen( pParse, pSrc->iCursor, pProbe, saved_nEq, pTerm ); - pTop = pTerm; - pBtm = (pNew->wsFlags & WHERE_BTM_LIMIT)!=0 ? - pNew->aLTerm[pNew->nLTerm-2] : 0; + if( eOp & (WO_GT|WO_GE) ){ + testcase( eOp & WO_GT ); + testcase( eOp & WO_GE ); + pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_BTM_LIMIT; + pNew->u.btree.nBtm = nVecLen; + pBtm = pTerm; + pTop = 0; + if( pTerm->wtFlags & TERM_LIKEOPT ){ + /* Range constraints that come from the LIKE optimization are + ** always used in pairs. */ + pTop = &pTerm[1]; + assert( (pTop-(pTerm->pWC->a))<pTerm->pWC->nTerm ); + assert( pTop->wtFlags & TERM_LIKEOPT ); + assert( pTop->eOperator==WO_LT ); + if( whereLoopResize(db, pNew, pNew->nLTerm+1) ) break; /* OOM */ + pNew->aLTerm[pNew->nLTerm++] = pTop; + pNew->wsFlags |= WHERE_TOP_LIMIT; + pNew->u.btree.nTop = 1; + } + }else{ + assert( eOp & (WO_LT|WO_LE) ); + testcase( eOp & WO_LT ); + testcase( eOp & WO_LE ); + pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_TOP_LIMIT; + pNew->u.btree.nTop = nVecLen; + pTop = pTerm; + pBtm = (pNew->wsFlags & WHERE_BTM_LIMIT)!=0 ? + pNew->aLTerm[pNew->nLTerm-2] : 0; + } } /* At this point pNew->nOut is set to the number of rows expected to @@ -155058,7 +163979,7 @@ static int whereLoopAddBtreeIndex( && pNew->nOut+10 > pProbe->aiRowLogEst[0] ){ #if WHERETRACE_ENABLED /* 0x01 */ - if( sqlite3WhereTrace & 0x01 ){ + if( sqlite3WhereTrace & 0x20 ){ sqlite3DebugPrintf( "STAT4 determines term has low selectivity:\n"); sqlite3WhereTermPrint(pTerm, 999); @@ -155095,9 +164016,17 @@ static int whereLoopAddBtreeIndex( ** seek only. Then, if this is a non-covering index, add the cost of ** visiting the rows in the main table. */ assert( pSrc->pTab->szTabRow>0 ); - rCostIdx = pNew->nOut + 1 + (15*pProbe->szIdxRow)/pSrc->pTab->szTabRow; + if( pProbe->idxType==SQLITE_IDXTYPE_IPK ){ + /* The pProbe->szIdxRow is low for an IPK table since the interior + ** pages are small. Thus szIdxRow gives a good estimate of seek cost. + ** But the leaf pages are full-size, so pProbe->szIdxRow would badly + ** under-estimate the scanning cost. */ + rCostIdx = pNew->nOut + 16; + }else{ + rCostIdx = pNew->nOut + 1 + (15*pProbe->szIdxRow)/pSrc->pTab->szTabRow; + } pNew->rRun = sqlite3LogEstAdd(rLogSize, rCostIdx); - if( (pNew->wsFlags & (WHERE_IDX_ONLY|WHERE_IPK))==0 ){ + if( (pNew->wsFlags & (WHERE_IDX_ONLY|WHERE_IPK|WHERE_EXPRIDX))==0 ){ pNew->rRun = sqlite3LogEstAdd(pNew->rRun, pNew->nOut + 16); } ApplyCostMultiplier(pNew->rRun, pProbe->pTable->costMult); @@ -155119,6 +164048,9 @@ static int whereLoopAddBtreeIndex( && (pNew->u.btree.nEq<pProbe->nKeyCol || pProbe->idxType!=SQLITE_IDXTYPE_PRIMARYKEY) ){ + if( pNew->u.btree.nEq>3 ){ + sqlite3ProgressCheck(pParse); + } whereLoopAddBtreeIndex(pBuilder, pSrc, pProbe, nInMul+nIn); } pNew->nOut = saved_nOut; @@ -155221,23 +164153,26 @@ static int indexMightHelpWithOrderBy( */ static int whereUsablePartialIndex( int iTab, /* The table for which we want an index */ - int isLeft, /* True if iTab is the right table of a LEFT JOIN */ + u8 jointype, /* The JT_* flags on the join */ WhereClause *pWC, /* The WHERE clause of the query */ Expr *pWhere /* The WHERE clause from the partial index */ ){ int i; WhereTerm *pTerm; - Parse *pParse = pWC->pWInfo->pParse; + Parse *pParse; + + if( jointype & JT_LTORJ ) return 0; + pParse = pWC->pWInfo->pParse; while( pWhere->op==TK_AND ){ - if( !whereUsablePartialIndex(iTab,isLeft,pWC,pWhere->pLeft) ) return 0; + if( !whereUsablePartialIndex(iTab,jointype,pWC,pWhere->pLeft) ) return 0; pWhere = pWhere->pRight; } if( pParse->db->flags & SQLITE_EnableQPSG ) pParse = 0; for(i=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){ Expr *pExpr; pExpr = pTerm->pExpr; - if( (!ExprHasProperty(pExpr, EP_FromJoin) || pExpr->w.iRightJoinTable==iTab) - && (isLeft==0 || ExprHasProperty(pExpr, EP_FromJoin)) + if( (!ExprHasProperty(pExpr, EP_OuterON) || pExpr->w.iJoin==iTab) + && ((jointype & JT_OUTER)==0 || ExprHasProperty(pExpr, EP_OuterON)) && sqlite3ExprImpliesExpr(pParse, pExpr, pWhere, iTab) && (pTerm->wtFlags & TERM_VNULL)==0 ){ @@ -155248,6 +164183,243 @@ static int whereUsablePartialIndex( } /* +** pIdx is an index containing expressions. Check it see if any of the +** expressions in the index match the pExpr expression. +*/ +static int exprIsCoveredByIndex( + const Expr *pExpr, + const Index *pIdx, + int iTabCur +){ + int i; + for(i=0; i<pIdx->nColumn; i++){ + if( pIdx->aiColumn[i]==XN_EXPR + && sqlite3ExprCompare(0, pExpr, pIdx->aColExpr->a[i].pExpr, iTabCur)==0 + ){ + return 1; + } + } + return 0; +} + +/* +** Structure passed to the whereIsCoveringIndex Walker callback. +*/ +typedef struct CoveringIndexCheck CoveringIndexCheck; +struct CoveringIndexCheck { + Index *pIdx; /* The index */ + int iTabCur; /* Cursor number for the corresponding table */ + u8 bExpr; /* Uses an indexed expression */ + u8 bUnidx; /* Uses an unindexed column not within an indexed expr */ +}; + +/* +** Information passed in is pWalk->u.pCovIdxCk. Call it pCk. +** +** If the Expr node references the table with cursor pCk->iTabCur, then +** make sure that column is covered by the index pCk->pIdx. We know that +** all columns less than 63 (really BMS-1) are covered, so we don't need +** to check them. But we do need to check any column at 63 or greater. +** +** If the index does not cover the column, then set pWalk->eCode to +** non-zero and return WRC_Abort to stop the search. +** +** If this node does not disprove that the index can be a covering index, +** then just return WRC_Continue, to continue the search. +** +** If pCk->pIdx contains indexed expressions and one of those expressions +** matches pExpr, then prune the search. +*/ +static int whereIsCoveringIndexWalkCallback(Walker *pWalk, Expr *pExpr){ + int i; /* Loop counter */ + const Index *pIdx; /* The index of interest */ + const i16 *aiColumn; /* Columns contained in the index */ + u16 nColumn; /* Number of columns in the index */ + CoveringIndexCheck *pCk; /* Info about this search */ + + pCk = pWalk->u.pCovIdxCk; + pIdx = pCk->pIdx; + if( (pExpr->op==TK_COLUMN || pExpr->op==TK_AGG_COLUMN) ){ + /* if( pExpr->iColumn<(BMS-1) && pIdx->bHasExpr==0 ) return WRC_Continue;*/ + if( pExpr->iTable!=pCk->iTabCur ) return WRC_Continue; + pIdx = pWalk->u.pCovIdxCk->pIdx; + aiColumn = pIdx->aiColumn; + nColumn = pIdx->nColumn; + for(i=0; i<nColumn; i++){ + if( aiColumn[i]==pExpr->iColumn ) return WRC_Continue; + } + pCk->bUnidx = 1; + return WRC_Abort; + }else if( pIdx->bHasExpr + && exprIsCoveredByIndex(pExpr, pIdx, pWalk->u.pCovIdxCk->iTabCur) ){ + pCk->bExpr = 1; + return WRC_Prune; + } + return WRC_Continue; +} + + +/* +** pIdx is an index that covers all of the low-number columns used by +** pWInfo->pSelect (columns from 0 through 62) or an index that has +** expressions terms. Hence, we cannot determine whether or not it is +** a covering index by using the colUsed bitmasks. We have to do a search +** to see if the index is covering. This routine does that search. +** +** The return value is one of these: +** +** 0 The index is definitely not a covering index +** +** WHERE_IDX_ONLY The index is definitely a covering index +** +** WHERE_EXPRIDX The index is likely a covering index, but it is +** difficult to determine precisely because of the +** expressions that are indexed. Score it as a +** covering index, but still keep the main table open +** just in case we need it. +** +** This routine is an optimization. It is always safe to return zero. +** But returning one of the other two values when zero should have been +** returned can lead to incorrect bytecode and assertion faults. +*/ +static SQLITE_NOINLINE u32 whereIsCoveringIndex( + WhereInfo *pWInfo, /* The WHERE clause context */ + Index *pIdx, /* Index that is being tested */ + int iTabCur /* Cursor for the table being indexed */ +){ + int i, rc; + struct CoveringIndexCheck ck; + Walker w; + if( pWInfo->pSelect==0 ){ + /* We don't have access to the full query, so we cannot check to see + ** if pIdx is covering. Assume it is not. */ + return 0; + } + if( pIdx->bHasExpr==0 ){ + for(i=0; i<pIdx->nColumn; i++){ + if( pIdx->aiColumn[i]>=BMS-1 ) break; + } + if( i>=pIdx->nColumn ){ + /* pIdx does not index any columns greater than 62, but we know from + ** colMask that columns greater than 62 are used, so this is not a + ** covering index */ + return 0; + } + } + ck.pIdx = pIdx; + ck.iTabCur = iTabCur; + ck.bExpr = 0; + ck.bUnidx = 0; + memset(&w, 0, sizeof(w)); + w.xExprCallback = whereIsCoveringIndexWalkCallback; + w.xSelectCallback = sqlite3SelectWalkNoop; + w.u.pCovIdxCk = &ck; + sqlite3WalkSelect(&w, pWInfo->pSelect); + if( ck.bUnidx ){ + rc = 0; + }else if( ck.bExpr ){ + rc = WHERE_EXPRIDX; + }else{ + rc = WHERE_IDX_ONLY; + } + return rc; +} + +/* +** This is an sqlite3ParserAddCleanup() callback that is invoked to +** free the Parse->pIdxEpr list when the Parse object is destroyed. +*/ +static void whereIndexedExprCleanup(sqlite3 *db, void *pObject){ + IndexedExpr **pp = (IndexedExpr**)pObject; + while( *pp!=0 ){ + IndexedExpr *p = *pp; + *pp = p->pIENext; + sqlite3ExprDelete(db, p->pExpr); + sqlite3DbFreeNN(db, p); + } +} + +/* +** This function is called for a partial index - one with a WHERE clause - in +** two scenarios. In both cases, it determines whether or not the WHERE +** clause on the index implies that a column of the table may be safely +** replaced by a constant expression. For example, in the following +** SELECT: +** +** CREATE INDEX i1 ON t1(b, c) WHERE a=<expr>; +** SELECT a, b, c FROM t1 WHERE a=<expr> AND b=?; +** +** The "a" in the select-list may be replaced by <expr>, iff: +** +** (a) <expr> is a constant expression, and +** (b) The (a=<expr>) comparison uses the BINARY collation sequence, and +** (c) Column "a" has an affinity other than NONE or BLOB. +** +** If argument pItem is NULL, then pMask must not be NULL. In this case this +** function is being called as part of determining whether or not pIdx +** is a covering index. This function clears any bits in (*pMask) +** corresponding to columns that may be replaced by constants as described +** above. +** +** Otherwise, if pItem is not NULL, then this function is being called +** as part of coding a loop that uses index pIdx. In this case, add entries +** to the Parse.pIdxPartExpr list for each column that can be replaced +** by a constant. +*/ +static void wherePartIdxExpr( + Parse *pParse, /* Parse context */ + Index *pIdx, /* Partial index being processed */ + Expr *pPart, /* WHERE clause being processed */ + Bitmask *pMask, /* Mask to clear bits in */ + int iIdxCur, /* Cursor number for index */ + SrcItem *pItem /* The FROM clause entry for the table */ +){ + assert( pItem==0 || (pItem->fg.jointype & JT_RIGHT)==0 ); + assert( (pItem==0 || pMask==0) && (pMask!=0 || pItem!=0) ); + + if( pPart->op==TK_AND ){ + wherePartIdxExpr(pParse, pIdx, pPart->pRight, pMask, iIdxCur, pItem); + pPart = pPart->pLeft; + } + + if( (pPart->op==TK_EQ || pPart->op==TK_IS) ){ + Expr *pLeft = pPart->pLeft; + Expr *pRight = pPart->pRight; + u8 aff; + + if( pLeft->op!=TK_COLUMN ) return; + if( !sqlite3ExprIsConstant(pRight) ) return; + if( !sqlite3IsBinary(sqlite3ExprCompareCollSeq(pParse, pPart)) ) return; + if( pLeft->iColumn<0 ) return; + aff = pIdx->pTable->aCol[pLeft->iColumn].affinity; + if( aff>=SQLITE_AFF_TEXT ){ + if( pItem ){ + sqlite3 *db = pParse->db; + IndexedExpr *p = (IndexedExpr*)sqlite3DbMallocRaw(db, sizeof(*p)); + if( p ){ + int bNullRow = (pItem->fg.jointype&(JT_LEFT|JT_LTORJ))!=0; + p->pExpr = sqlite3ExprDup(db, pRight, 0); + p->iDataCur = pItem->iCursor; + p->iIdxCur = iIdxCur; + p->iIdxCol = pLeft->iColumn; + p->bMaybeNullRow = bNullRow; + p->pIENext = pParse->pIdxPartExpr; + p->aff = aff; + pParse->pIdxPartExpr = p; + if( p->pIENext==0 ){ + void *pArg = (void*)&pParse->pIdxPartExpr; + sqlite3ParserAddCleanup(pParse, whereIndexedExprCleanup, pArg); + } + } + }else if( pLeft->iColumn<(BMS-1) ){ + *pMask &= ~((Bitmask)1 << pLeft->iColumn); + } + } + } +} + + +/* ** Add all WhereLoop objects for a single table of the join where the table ** is identified by pBuilder->pNew->iTab. That table is guaranteed to be ** a b-tree table, not a virtual table. @@ -155285,7 +164457,7 @@ static int whereUsablePartialIndex( */ static int whereLoopAddBtree( WhereLoopBuilder *pBuilder, /* WHERE clause information */ - Bitmask mPrereq /* Extra prerequesites for using this table */ + Bitmask mPrereq /* Extra prerequisites for using this table */ ){ WhereInfo *pWInfo; /* WHERE analysis context */ Index *pProbe; /* An index we are evaluating */ @@ -155329,7 +164501,7 @@ static int whereLoopAddBtree( sPk.aiRowLogEst = aiRowEstPk; sPk.onError = OE_Replace; sPk.pTable = pTab; - sPk.szIdxRow = pTab->szTabRow; + sPk.szIdxRow = 3; /* TUNING: Interior rows of IPK table are very small */ sPk.idxType = SQLITE_IDXTYPE_IPK; aiRowEstPk[0] = pTab->nRowLogEst; aiRowEstPk[1] = 0; @@ -155346,13 +164518,14 @@ static int whereLoopAddBtree( #ifndef SQLITE_OMIT_AUTOMATIC_INDEX /* Automatic indexes */ if( !pBuilder->pOrSet /* Not part of an OR optimization */ - && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0 + && (pWInfo->wctrlFlags & (WHERE_RIGHT_JOIN|WHERE_OR_SUBCLAUSE))==0 && (pWInfo->pParse->db->flags & SQLITE_AutoIndex)!=0 && !pSrc->fg.isIndexedBy /* Has no INDEXED BY clause */ && !pSrc->fg.notIndexed /* Has no NOT INDEXED clause */ && HasRowid(pTab) /* Not WITHOUT ROWID table. (FIXME: Why not?) */ && !pSrc->fg.isCorrelated /* Not a correlated subquery */ && !pSrc->fg.isRecursive /* Not a recursive common table expression. */ + && (pSrc->fg.jointype & JT_RIGHT)==0 /* Not the right tab of a RIGHT JOIN */ ){ /* Generate auto-index WhereLoops */ LogEst rLogSize; /* Logarithm of the number of rows in the table */ @@ -155379,7 +164552,8 @@ static int whereLoopAddBtree( if( !IsView(pTab) && (pTab->tabFlags & TF_Ephemeral)==0 ){ pNew->rSetup += 28; }else{ - pNew->rSetup -= 10; + pNew->rSetup -= 25; /* Greatly reduced setup cost for auto indexes + ** on ephemeral materializations of views */ } ApplyCostMultiplier(pNew->rSetup, pTab->costMult); if( pNew->rSetup<0 ) pNew->rSetup = 0; @@ -155402,9 +164576,8 @@ static int whereLoopAddBtree( for(; rc==SQLITE_OK && pProbe; pProbe=(pSrc->fg.isIndexedBy ? 0 : pProbe->pNext), iSortIdx++ ){ - int isLeft = (pSrc->fg.jointype & JT_OUTER)!=0; if( pProbe->pPartIdxWhere!=0 - && !whereUsablePartialIndex(pSrc->iCursor, isLeft, pWC, + && !whereUsablePartialIndex(pSrc->iCursor, pSrc->fg.jointype, pWC, pProbe->pPartIdxWhere) ){ testcase( pNew->iTab!=pSrc->iCursor ); /* See ticket [98d973b8f5] */ @@ -155457,11 +164630,43 @@ static int whereLoopAddBtree( }else{ Bitmask m; if( pProbe->isCovering ){ - pNew->wsFlags = WHERE_IDX_ONLY | WHERE_INDEXED; m = 0; + pNew->wsFlags = WHERE_IDX_ONLY | WHERE_INDEXED; }else{ m = pSrc->colUsed & pProbe->colNotIdxed; - pNew->wsFlags = (m==0) ? (WHERE_IDX_ONLY|WHERE_INDEXED) : WHERE_INDEXED; + if( pProbe->pPartIdxWhere ){ + wherePartIdxExpr( + pWInfo->pParse, pProbe, pProbe->pPartIdxWhere, &m, 0, 0 + ); + } + pNew->wsFlags = WHERE_INDEXED; + if( m==TOPBIT || (pProbe->bHasExpr && !pProbe->bHasVCol && m!=0) ){ + u32 isCov = whereIsCoveringIndex(pWInfo, pProbe, pSrc->iCursor); + if( isCov==0 ){ + WHERETRACE(0x200, + ("-> %s is not a covering index" + " according to whereIsCoveringIndex()\n", pProbe->zName)); + assert( m!=0 ); + }else{ + m = 0; + pNew->wsFlags |= isCov; + if( isCov & WHERE_IDX_ONLY ){ + WHERETRACE(0x200, + ("-> %s is a covering expression index" + " according to whereIsCoveringIndex()\n", pProbe->zName)); + }else{ + assert( isCov==WHERE_EXPRIDX ); + WHERETRACE(0x200, + ("-> %s might be a covering expression index" + " according to whereIsCoveringIndex()\n", pProbe->zName)); + } + } + }else if( m==0 ){ + WHERETRACE(0x200, + ("-> %s a covering index according to bitmasks\n", + pProbe->zName, m==0 ? "is" : "is not")); + pNew->wsFlags = WHERE_IDX_ONLY | WHERE_INDEXED; + } } /* Full scan via index */ @@ -155512,7 +164717,14 @@ static int whereLoopAddBtree( } ApplyCostMultiplier(pNew->rRun, pTab->costMult); whereLoopOutputAdjust(pWC, pNew, rSize); - rc = whereLoopInsert(pBuilder, pNew); + if( (pSrc->fg.jointype & JT_RIGHT)!=0 && pProbe->aColExpr ){ + /* Do not do an SCAN of a index-on-expression in a RIGHT JOIN + ** because the cursor used to access the index might not be + ** positioned to the correct row during the right-join no-match + ** loop. */ + }else{ + rc = whereLoopInsert(pBuilder, pNew); + } pNew->nOut = rSize; if( rc ) break; } @@ -155627,7 +164839,7 @@ static int whereLoopAddVirtualOne( ** that the particular combination of parameters provided is unusable. ** Make no entries in the loop table. */ - WHERETRACE(0xffff, (" ^^^^--- non-viable plan rejected!\n")); + WHERETRACE(0xffffffff, (" ^^^^--- non-viable plan rejected!\n")); return SQLITE_OK; } return rc; @@ -155687,6 +164899,7 @@ static int whereLoopAddVirtualOne( *pbIn = 1; assert( (mExclude & WO_IN)==0 ); } + assert( pbRetryLimit || !isLimitTerm(pTerm) ); if( isLimitTerm(pTerm) && *pbIn ){ /* If there is an IN(...) term handled as an == (separate call to ** xFilter for each value on the RHS of the IN) and a LIMIT or @@ -155737,7 +164950,7 @@ static int whereLoopAddVirtualOne( sqlite3_free(pNew->u.vtab.idxStr); pNew->u.vtab.needFree = 0; } - WHERETRACE(0xffff, (" bIn=%d prereqIn=%04llx prereqOut=%04llx\n", + WHERETRACE(0xffffffff, (" bIn=%d prereqIn=%04llx prereqOut=%04llx\n", *pbIn, (sqlite3_uint64)mPrereq, (sqlite3_uint64)(pNew->prereq & ~mPrereq))); @@ -155753,7 +164966,7 @@ static int whereLoopAddVirtualOne( ** ** Return a pointer to the collation name: ** -** 1. If there is an explicit COLLATE operator on the constaint, return it. +** 1. If there is an explicit COLLATE operator on the constraint, return it. ** ** 2. Else, if the column has an alternative collation, return that. ** @@ -155808,7 +165021,7 @@ SQLITE_API int sqlite3_vtab_rhs_value( sqlite3_value *pVal = 0; int rc = SQLITE_OK; if( iCons<0 || iCons>=pIdxInfo->nConstraint ){ - rc = SQLITE_MISUSE; /* EV: R-30545-25046 */ + rc = SQLITE_MISUSE_BKPT; /* EV: R-30545-25046 */ }else{ if( pH->aRhs[iCons]==0 ){ WhereTerm *pTerm = &pH->pWC->a[pIdxInfo->aConstraint[iCons].iTermOffset]; @@ -155834,27 +165047,31 @@ SQLITE_API int sqlite3_vtab_rhs_value( */ SQLITE_API int sqlite3_vtab_distinct(sqlite3_index_info *pIdxInfo){ HiddenIndexInfo *pHidden = (HiddenIndexInfo*)&pIdxInfo[1]; - assert( pHidden->eDistinct==0 - || pHidden->eDistinct==1 - || pHidden->eDistinct==2 ); + assert( pHidden->eDistinct>=0 && pHidden->eDistinct<=3 ); return pHidden->eDistinct; } -#if (defined(SQLITE_ENABLE_DBPAGE_VTAB) || defined(SQLITE_TEST)) \ - && !defined(SQLITE_OMIT_VIRTUALTABLE) /* ** Cause the prepared statement that is associated with a call to -** xBestIndex to open write transactions on all attached schemas. +** xBestIndex to potentially use all schemas. If the statement being +** prepared is read-only, then just start read transactions on all +** schemas. But if this is a write operation, start writes on all +** schemas. +** ** This is used by the (built-in) sqlite_dbpage virtual table. */ -SQLITE_PRIVATE void sqlite3VtabWriteAll(sqlite3_index_info *pIdxInfo){ - HiddenIndexInfo *pHidden = (HiddenIndexInfo*)&pIdxInfo[1]; - Parse *pParse = pHidden->pParse; +SQLITE_PRIVATE void sqlite3VtabUsesAllSchemas(Parse *pParse){ int nDb = pParse->db->nDb; int i; - for(i=0; i<nDb; i++) sqlite3BeginWriteOperation(pParse, 0, i); + for(i=0; i<nDb; i++){ + sqlite3CodeVerifySchema(pParse, i); + } + if( DbMaskNonZero(pParse->writeMask) ){ + for(i=0; i<nDb; i++){ + sqlite3BeginWriteOperation(pParse, 0, i); + } + } } -#endif /* ** Add all WhereLoop objects for a table of the join identified by @@ -155920,7 +165137,7 @@ static int whereLoopAddVirtual( /* First call xBestIndex() with all constraints usable. */ WHERETRACE(0x800, ("BEGIN %s.addVirtual()\n", pSrc->pTab->zName)); - WHERETRACE(0x40, (" VirtualOne: all usable\n")); + WHERETRACE(0x800, (" VirtualOne: all usable\n")); rc = whereLoopAddVirtualOne( pBuilder, mPrereq, ALLBITS, 0, p, mNoOmit, &bIn, &bRetry ); @@ -155945,7 +165162,7 @@ static int whereLoopAddVirtual( /* If the plan produced by the earlier call uses an IN(...) term, call ** xBestIndex again, this time with IN(...) terms disabled. */ if( bIn ){ - WHERETRACE(0x40, (" VirtualOne: all usable w/o IN\n")); + WHERETRACE(0x800, (" VirtualOne: all usable w/o IN\n")); rc = whereLoopAddVirtualOne( pBuilder, mPrereq, ALLBITS, WO_IN, p, mNoOmit, &bIn, 0); assert( bIn==0 ); @@ -155971,7 +165188,7 @@ static int whereLoopAddVirtual( mPrev = mNext; if( mNext==ALLBITS ) break; if( mNext==mBest || mNext==mBestNoIn ) continue; - WHERETRACE(0x40, (" VirtualOne: mPrev=%04llx mNext=%04llx\n", + WHERETRACE(0x800, (" VirtualOne: mPrev=%04llx mNext=%04llx\n", (sqlite3_uint64)mPrev, (sqlite3_uint64)mNext)); rc = whereLoopAddVirtualOne( pBuilder, mPrereq, mNext|mPrereq, 0, p, mNoOmit, &bIn, 0); @@ -155985,7 +165202,7 @@ static int whereLoopAddVirtual( ** that requires no source tables at all (i.e. one guaranteed to be ** usable), make a call here with all source tables disabled */ if( rc==SQLITE_OK && seenZero==0 ){ - WHERETRACE(0x40, (" VirtualOne: all disabled\n")); + WHERETRACE(0x800, (" VirtualOne: all disabled\n")); rc = whereLoopAddVirtualOne( pBuilder, mPrereq, mPrereq, 0, p, mNoOmit, &bIn, 0); if( bIn==0 ) seenZeroNoIN = 1; @@ -155995,7 +165212,7 @@ static int whereLoopAddVirtual( ** that requires no source tables at all and does not use an IN(...) ** operator, make a final call to obtain one here. */ if( rc==SQLITE_OK && seenZeroNoIN==0 ){ - WHERETRACE(0x40, (" VirtualOne: all disabled and w/o IN\n")); + WHERETRACE(0x800, (" VirtualOne: all disabled and w/o IN\n")); rc = whereLoopAddVirtualOne( pBuilder, mPrereq, mPrereq, WO_IN, p, mNoOmit, &bIn, 0); } @@ -156035,6 +165252,9 @@ static int whereLoopAddOr( pItem = pWInfo->pTabList->a + pNew->iTab; iCur = pItem->iCursor; + /* The multi-index OR optimization does not work for RIGHT and FULL JOIN */ + if( pItem->fg.jointype & JT_RIGHT ) return SQLITE_OK; + for(pTerm=pWC->a; pTerm<pWCEnd && rc==SQLITE_OK; pTerm++){ if( (pTerm->eOperator & WO_OR)!=0 && (pTerm->u.pOrInfo->indexable & pNew->maskSelf)!=0 @@ -156048,7 +165268,7 @@ static int whereLoopAddOr( sSubBuild = *pBuilder; sSubBuild.pOrSet = &sCur; - WHERETRACE(0x200, ("Begin processing OR-clause %p\n", pTerm)); + WHERETRACE(0x400, ("Begin processing OR-clause %p\n", pTerm)); for(pOrTerm=pOrWC->a; pOrTerm<pOrWCEnd; pOrTerm++){ if( (pOrTerm->eOperator & WO_AND)!=0 ){ sSubBuild.pWC = &pOrTerm->u.pAndInfo->wc; @@ -156065,9 +165285,9 @@ static int whereLoopAddOr( } sCur.n = 0; #ifdef WHERETRACE_ENABLED - WHERETRACE(0x200, ("OR-term %d of %p has %d subterms:\n", + WHERETRACE(0x400, ("OR-term %d of %p has %d subterms:\n", (int)(pOrTerm-pOrWC->a), pTerm, sSubBuild.pWC->nTerm)); - if( sqlite3WhereTrace & 0x400 ){ + if( sqlite3WhereTrace & 0x20000 ){ sqlite3WhereClausePrint(sSubBuild.pWC); } #endif @@ -156082,8 +165302,6 @@ static int whereLoopAddOr( if( rc==SQLITE_OK ){ rc = whereLoopAddOr(&sSubBuild, mPrereq, mUnusable); } - assert( rc==SQLITE_OK || rc==SQLITE_DONE || sCur.n==0 - || rc==SQLITE_NOMEM ); testcase( rc==SQLITE_NOMEM && sCur.n>0 ); testcase( rc==SQLITE_DONE ); if( sCur.n==0 ){ @@ -156129,7 +165347,7 @@ static int whereLoopAddOr( pNew->prereq = sSum.a[i].prereq; rc = whereLoopInsert(pBuilder, pNew); } - WHERETRACE(0x200, ("End processing OR-clause %p\n", pTerm)); + WHERETRACE(0x400, ("End processing OR-clause %p\n", pTerm)); } } return rc; @@ -156148,29 +165366,50 @@ static int whereLoopAddAll(WhereLoopBuilder *pBuilder){ SrcItem *pEnd = &pTabList->a[pWInfo->nLevel]; sqlite3 *db = pWInfo->pParse->db; int rc = SQLITE_OK; + int bFirstPastRJ = 0; + int hasRightJoin = 0; WhereLoop *pNew; + /* Loop over the tables in the join, from left to right */ pNew = pBuilder->pNew; - whereLoopInit(pNew); + + /* Verify that pNew has already been initialized */ + assert( pNew->nLTerm==0 ); + assert( pNew->wsFlags==0 ); + assert( pNew->nLSlot>=ArraySize(pNew->aLTermSpace) ); + assert( pNew->aLTerm!=0 ); + pBuilder->iPlanLimit = SQLITE_QUERY_PLANNER_LIMIT; for(iTab=0, pItem=pTabList->a; pItem<pEnd; iTab++, pItem++){ Bitmask mUnusable = 0; pNew->iTab = iTab; pBuilder->iPlanLimit += SQLITE_QUERY_PLANNER_LIMIT_INCR; pNew->maskSelf = sqlite3WhereGetMask(&pWInfo->sMaskSet, pItem->iCursor); - if( (pItem->fg.jointype & (JT_LEFT|JT_CROSS))!=0 ){ - /* This condition is true when pItem is the FROM clause term on the - ** right-hand-side of a LEFT or CROSS JOIN. */ - mPrereq = mPrior; - }else{ + if( bFirstPastRJ + || (pItem->fg.jointype & (JT_OUTER|JT_CROSS|JT_LTORJ))!=0 + ){ + /* Add prerequisites to prevent reordering of FROM clause terms + ** across CROSS joins and outer joins. The bFirstPastRJ boolean + ** prevents the right operand of a RIGHT JOIN from being swapped with + ** other elements even further to the right. + ** + ** The JT_LTORJ case and the hasRightJoin flag work together to + ** prevent FROM-clause terms from moving from the right side of + ** a LEFT JOIN over to the left side of that join if the LEFT JOIN + ** is itself on the left side of a RIGHT JOIN. + */ + if( pItem->fg.jointype & JT_LTORJ ) hasRightJoin = 1; + mPrereq |= mPrior; + bFirstPastRJ = (pItem->fg.jointype & JT_RIGHT)!=0; + }else if( !hasRightJoin ){ mPrereq = 0; } #ifndef SQLITE_OMIT_VIRTUALTABLE if( IsVirtual(pItem->pTab) ){ SrcItem *p; for(p=&pItem[1]; p<pEnd; p++){ - if( mUnusable || (p->fg.jointype & (JT_LEFT|JT_CROSS)) ){ + if( mUnusable || (p->fg.jointype & (JT_OUTER|JT_CROSS)) ){ mUnusable |= sqlite3WhereGetMask(&pWInfo->sMaskSet, p->iCursor); } } @@ -156295,7 +165534,9 @@ static i8 wherePathSatisfiesOrderBy( pLoop = pLast; } if( pLoop->wsFlags & WHERE_VIRTUALTABLE ){ - if( pLoop->u.vtab.isOrdered && (wctrlFlags & WHERE_DISTINCTBY)==0 ){ + if( pLoop->u.vtab.isOrdered + && ((wctrlFlags&(WHERE_DISTINCTBY|WHERE_SORTBYGROUP))!=WHERE_DISTINCTBY) + ){ obSat = obDone; } break; @@ -156454,8 +165695,8 @@ static i8 wherePathSatisfiesOrderBy( if( pOBExpr->iTable!=iCur ) continue; if( pOBExpr->iColumn!=iColumn ) continue; }else{ - Expr *pIdxExpr = pIndex->aColExpr->a[j].pExpr; - if( sqlite3ExprCompareSkip(pOBExpr, pIdxExpr, iCur) ){ + Expr *pIxExpr = pIndex->aColExpr->a[j].pExpr; + if( sqlite3ExprCompareSkip(pOBExpr, pIxExpr, iCur) ){ continue; } } @@ -156473,16 +165714,18 @@ static i8 wherePathSatisfiesOrderBy( /* Make sure the sort order is compatible in an ORDER BY clause. ** Sort order is irrelevant for a GROUP BY clause. */ if( revSet ){ - if( (rev ^ revIdx)!=(pOrderBy->a[i].sortFlags&KEYINFO_ORDER_DESC) ){ + if( (rev ^ revIdx) + != (pOrderBy->a[i].fg.sortFlags&KEYINFO_ORDER_DESC) + ){ isMatch = 0; } }else{ - rev = revIdx ^ (pOrderBy->a[i].sortFlags & KEYINFO_ORDER_DESC); + rev = revIdx ^ (pOrderBy->a[i].fg.sortFlags & KEYINFO_ORDER_DESC); if( rev ) *pRevMask |= MASKBIT(iLoop); revSet = 1; } } - if( isMatch && (pOrderBy->a[i].sortFlags & KEYINFO_ORDER_BIGNULL) ){ + if( isMatch && (pOrderBy->a[i].fg.sortFlags & KEYINFO_ORDER_BIGNULL) ){ if( j==pLoop->u.btree.nEq ){ pLoop->wsFlags |= WHERE_BIGNULL_SORT; }else{ @@ -156562,7 +165805,7 @@ static i8 wherePathSatisfiesOrderBy( ** SELECT * FROM t1 GROUP BY y,x ORDER BY y,x; -- IsSorted()==0 */ SQLITE_PRIVATE int sqlite3WhereIsSorted(WhereInfo *pWInfo){ - assert( pWInfo->wctrlFlags & WHERE_GROUPBY ); + assert( pWInfo->wctrlFlags & (WHERE_GROUPBY|WHERE_DISTINCTBY) ); assert( pWInfo->wctrlFlags & WHERE_SORTBYGROUP ); return pWInfo->sorted; } @@ -156585,37 +165828,56 @@ static const char *wherePathName(WherePath *pPath, int nLoop, WhereLoop *pLast){ ** order. */ static LogEst whereSortingCost( - WhereInfo *pWInfo, - LogEst nRow, - int nOrderBy, - int nSorted + WhereInfo *pWInfo, /* Query planning context */ + LogEst nRow, /* Estimated number of rows to sort */ + int nOrderBy, /* Number of ORDER BY clause terms */ + int nSorted /* Number of initial ORDER BY terms naturally in order */ ){ - /* TUNING: Estimated cost of a full external sort, where N is + /* Estimated cost of a full external sort, where N is ** the number of rows to sort is: ** - ** cost = (3.0 * N * log(N)). + ** cost = (K * N * log(N)). ** ** Or, if the order-by clause has X terms but only the last Y ** terms are out of order, then block-sorting will reduce the ** sorting cost to: ** - ** cost = (3.0 * N * log(N)) * (Y/X) + ** cost = (K * N * log(N)) * (Y/X) ** - ** The (Y/X) term is implemented using stack variable rScale - ** below. + ** The constant K is at least 2.0 but will be larger if there are a + ** large number of columns to be sorted, as the sorting time is + ** proportional to the amount of content to be sorted. The algorithm + ** does not currently distinguish between fat columns (BLOBs and TEXTs) + ** and skinny columns (INTs). It just uses the number of columns as + ** an approximation for the row width. + ** + ** And extra factor of 2.0 or 3.0 is added to the sorting cost if the sort + ** is built using OP_IdxInsert and OP_Sort rather than with OP_SorterInsert. */ - LogEst rScale, rSortCost; - assert( nOrderBy>0 && 66==sqlite3LogEst(100) ); - rScale = sqlite3LogEst((nOrderBy-nSorted)*100/nOrderBy) - 66; - rSortCost = nRow + rScale + 16; + LogEst rSortCost, nCol; + assert( pWInfo->pSelect!=0 ); + assert( pWInfo->pSelect->pEList!=0 ); + /* TUNING: sorting cost proportional to the number of output columns: */ + nCol = sqlite3LogEst((pWInfo->pSelect->pEList->nExpr+59)/30); + rSortCost = nRow + nCol; + if( nSorted>0 ){ + /* Scale the result by (Y/X) */ + rSortCost += sqlite3LogEst((nOrderBy-nSorted)*100/nOrderBy) - 66; + } /* Multiple by log(M) where M is the number of output rows. ** Use the LIMIT for M if it is smaller. Or if this sort is for ** a DISTINCT operator, M will be the number of distinct output ** rows, so fudge it downwards a bit. */ - if( (pWInfo->wctrlFlags & WHERE_USE_LIMIT)!=0 && pWInfo->iLimit<nRow ){ - nRow = pWInfo->iLimit; + if( (pWInfo->wctrlFlags & WHERE_USE_LIMIT)!=0 ){ + rSortCost += 10; /* TUNING: Extra 2.0x if using LIMIT */ + if( nSorted!=0 ){ + rSortCost += 6; /* TUNING: Extra 1.5x if also using partial sort */ + } + if( pWInfo->iLimit<nRow ){ + nRow = pWInfo->iLimit; + } }else if( (pWInfo->wctrlFlags & WHERE_WANT_DISTINCT) ){ /* TUNING: In the sort for a DISTINCT operator, assume that the DISTINCT ** reduces the number of output rows by a factor of 2 */ @@ -156641,7 +165903,6 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){ int mxChoice; /* Maximum number of simultaneous paths tracked */ int nLoop; /* Number of terms in the join */ Parse *pParse; /* Parsing context */ - sqlite3 *db; /* The database connection */ int iLoop; /* Loop counter over the terms of the join */ int ii, jj; /* Loop counters */ int mxI = 0; /* Index of next entry to replace */ @@ -156660,14 +165921,14 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){ int nSpace; /* Bytes of space allocated at pSpace */ pParse = pWInfo->pParse; - db = pParse->db; nLoop = pWInfo->nLevel; /* TUNING: For simple queries, only the best path is tracked. ** For 2-way joins, the 5 best paths are followed. ** For joins of 3 or more tables, track the 10 best paths */ mxChoice = (nLoop<=1) ? 1 : (nLoop==2 ? 5 : 10); assert( nLoop<=pWInfo->pTabList->nSrc ); - WHERETRACE(0x002, ("---- begin solver. (nRowEst=%d)\n", nRowEst)); + WHERETRACE(0x002, ("---- begin solver. (nRowEst=%d, nQueryLoop=%d)\n", + nRowEst, pParse->nQueryLoop)); /* If nRowEst is zero and there is an ORDER BY clause, ignore it. In this ** case the purpose of this call is to estimate the number of rows returned @@ -156683,7 +165944,7 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){ /* Allocate and initialize space for aTo, aFrom and aSortCost[] */ nSpace = (sizeof(WherePath)+sizeof(WhereLoop*)*nLoop)*mxChoice*2; nSpace += sizeof(LogEst) * nOrderBy; - pSpace = sqlite3DbMallocRawNN(db, nSpace); + pSpace = sqlite3StackAllocRawNN(pParse->db, nSpace); if( pSpace==0 ) return SQLITE_NOMEM_BKPT; aTo = (WherePath*)pSpace; aFrom = aTo+mxChoice; @@ -156733,9 +165994,9 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){ LogEst nOut; /* Rows visited by (pFrom+pWLoop) */ LogEst rCost; /* Cost of path (pFrom+pWLoop) */ LogEst rUnsorted; /* Unsorted cost of (pFrom+pWLoop) */ - i8 isOrdered = pFrom->isOrdered; /* isOrdered for (pFrom+pWLoop) */ + i8 isOrdered; /* isOrdered for (pFrom+pWLoop) */ Bitmask maskNew; /* Mask of src visited by (..) */ - Bitmask revMask = 0; /* Mask of rev-order loops for (..) */ + Bitmask revMask; /* Mask of rev-order loops for (..) */ if( (pWLoop->prereq & ~pFrom->maskLoop)!=0 ) continue; if( (pWLoop->maskSelf & pFrom->maskLoop)!=0 ) continue; @@ -156754,7 +166015,9 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){ rUnsorted = sqlite3LogEstAdd(rUnsorted, pFrom->rUnsorted); nOut = pFrom->nRow + pWLoop->nOut; maskNew = pFrom->maskLoop | pWLoop->maskSelf; + isOrdered = pFrom->isOrdered; if( isOrdered<0 ){ + revMask = 0; isOrdered = wherePathSatisfiesOrderBy(pWInfo, pWInfo->pOrderBy, pFrom, pWInfo->wctrlFlags, iLoop, pWLoop, &revMask); @@ -156767,11 +166030,11 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){ pWInfo, nRowEst, nOrderBy, isOrdered ); } - /* TUNING: Add a small extra penalty (5) to sorting as an - ** extra encouragment to the query planner to select a plan + /* TUNING: Add a small extra penalty (3) to sorting as an + ** extra encouragement to the query planner to select a plan ** where the rows emerge in the correct order without any sorting ** required. */ - rCost = sqlite3LogEstAdd(rUnsorted, aSortCost[isOrdered]) + 5; + rCost = sqlite3LogEstAdd(rUnsorted, aSortCost[isOrdered]) + 3; WHERETRACE(0x002, ("---- sort cost=%-3d (%d/%d) increases cost %3d to %-3d\n", @@ -156932,7 +166195,7 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){ if( nFrom==0 ){ sqlite3ErrorMsg(pParse, "no query solution"); - sqlite3DbFreeNN(db, pSpace); + sqlite3StackFreeNN(pParse->db, pSpace); return SQLITE_ERROR; } @@ -156963,12 +166226,16 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){ } pWInfo->bOrderedInnerLoop = 0; if( pWInfo->pOrderBy ){ + pWInfo->nOBSat = pFrom->isOrdered; if( pWInfo->wctrlFlags & WHERE_DISTINCTBY ){ if( pFrom->isOrdered==pWInfo->pOrderBy->nExpr ){ pWInfo->eDistinct = WHERE_DISTINCT_ORDERED; } + if( pWInfo->pSelect->pOrderBy + && pWInfo->nOBSat > pWInfo->pSelect->pOrderBy->nExpr ){ + pWInfo->nOBSat = pWInfo->pSelect->pOrderBy->nExpr; + } }else{ - pWInfo->nOBSat = pFrom->isOrdered; pWInfo->revMask = pFrom->revLoop; if( pWInfo->nOBSat<=0 ){ pWInfo->nOBSat = 0; @@ -157014,7 +166281,7 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){ pWInfo->nRowOut = pFrom->nRow; /* Free temporary memory and return success */ - sqlite3DbFreeNN(db, pSpace); + sqlite3StackFreeNN(pParse->db, pSpace); return SQLITE_OK; } @@ -157047,7 +166314,11 @@ static int whereShortCut(WhereLoopBuilder *pBuilder){ pItem = pWInfo->pTabList->a; pTab = pItem->pTab; if( IsVirtual(pTab) ) return 0; - if( pItem->fg.isIndexedBy ) return 0; + if( pItem->fg.isIndexedBy || pItem->fg.notIndexed ){ + testcase( pItem->fg.isIndexedBy ); + testcase( pItem->fg.notIndexed ); + return 0; + } iCur = pItem->iCursor; pWC = &pWInfo->sWC; pLoop = pBuilder->pNew; @@ -157108,7 +166379,7 @@ static int whereShortCut(WhereLoopBuilder *pBuilder){ pLoop->cId = '0'; #endif #ifdef WHERETRACE_ENABLED - if( sqlite3WhereTrace ){ + if( sqlite3WhereTrace & 0x02 ){ sqlite3DebugPrintf("whereShortCut() used to compute solution\n"); } #endif @@ -157175,6 +166446,13 @@ static void showAllWhereLoops(WhereInfo *pWInfo, WhereClause *pWC){ ** at most a single row. ** 4) The table must not be referenced by any part of the query apart ** from its own USING or ON clause. +** 5) The table must not have an inner-join ON or USING clause if there is +** a RIGHT JOIN anywhere in the query. Otherwise the ON/USING clause +** might move from the right side to the left side of the RIGHT JOIN. +** Note: Due to (2), this condition can only arise if the table is +** the right-most table of a subquery that was flattened into the +** main query and that subquery was the right-hand operand of an +** inner join that held an ON or USING clause. ** ** For example, given: ** @@ -157200,6 +166478,7 @@ static SQLITE_NOINLINE Bitmask whereOmitNoopJoin( ){ int i; Bitmask tabUsed; + int hasRightJoin; /* Preconditions checked by the caller */ assert( pWInfo->nLevel>=2 ); @@ -157214,13 +166493,14 @@ static SQLITE_NOINLINE Bitmask whereOmitNoopJoin( if( pWInfo->pOrderBy ){ tabUsed |= sqlite3WhereExprListUsage(&pWInfo->sMaskSet, pWInfo->pOrderBy); } + hasRightJoin = (pWInfo->pTabList->a[0].fg.jointype & JT_LTORJ)!=0; for(i=pWInfo->nLevel-1; i>=1; i--){ WhereTerm *pTerm, *pEnd; SrcItem *pItem; WhereLoop *pLoop; pLoop = pWInfo->a[i].pWLoop; pItem = &pWInfo->pTabList->a[pLoop->iTab]; - if( (pItem->fg.jointype & JT_LEFT)==0 ) continue; + if( (pItem->fg.jointype & (JT_LEFT|JT_RIGHT))!=JT_LEFT ) continue; if( (pWInfo->wctrlFlags & WHERE_WANT_DISTINCT)==0 && (pLoop->wsFlags & WHERE_ONEROW)==0 ){ @@ -157230,15 +166510,21 @@ static SQLITE_NOINLINE Bitmask whereOmitNoopJoin( pEnd = pWInfo->sWC.a + pWInfo->sWC.nTerm; for(pTerm=pWInfo->sWC.a; pTerm<pEnd; pTerm++){ if( (pTerm->prereqAll & pLoop->maskSelf)!=0 ){ - if( !ExprHasProperty(pTerm->pExpr, EP_FromJoin) - || pTerm->pExpr->w.iRightJoinTable!=pItem->iCursor + if( !ExprHasProperty(pTerm->pExpr, EP_OuterON) + || pTerm->pExpr->w.iJoin!=pItem->iCursor ){ break; } } + if( hasRightJoin + && ExprHasProperty(pTerm->pExpr, EP_InnerON) + && pTerm->pExpr->w.iJoin==pItem->iCursor + ){ + break; /* restriction (5) */ + } } if( pTerm<pEnd ) continue; - WHERETRACE(0xffff, ("-> drop loop %c not used\n", pLoop->cId)); + WHERETRACE(0xffffffff, ("-> drop loop %c not used\n", pLoop->cId)); notReady &= ~pLoop->maskSelf; for(pTerm=pWInfo->sWC.a; pTerm<pEnd; pTerm++){ if( (pTerm->prereqAll & pLoop->maskSelf)!=0 ){ @@ -157277,28 +166563,27 @@ static SQLITE_NOINLINE void whereCheckIfBloomFilterIsUseful( const WhereInfo *pWInfo ){ int i; - LogEst nSearch; + LogEst nSearch = 0; assert( pWInfo->nLevel>=2 ); assert( OptimizationEnabled(pWInfo->pParse->db, SQLITE_BloomFilter) ); - nSearch = pWInfo->a[0].pWLoop->nOut; - for(i=1; i<pWInfo->nLevel; i++){ + for(i=0; i<pWInfo->nLevel; i++){ WhereLoop *pLoop = pWInfo->a[i].pWLoop; const unsigned int reqFlags = (WHERE_SELFCULL|WHERE_COLUMN_EQ); - if( (pLoop->wsFlags & reqFlags)==reqFlags + SrcItem *pItem = &pWInfo->pTabList->a[pLoop->iTab]; + Table *pTab = pItem->pTab; + if( (pTab->tabFlags & TF_HasStat1)==0 ) break; + pTab->tabFlags |= TF_StatsUsed; + if( i>=1 + && (pLoop->wsFlags & reqFlags)==reqFlags /* vvvvvv--- Always the case if WHERE_COLUMN_EQ is defined */ && ALWAYS((pLoop->wsFlags & (WHERE_IPK|WHERE_INDEXED))!=0) ){ - SrcItem *pItem = &pWInfo->pTabList->a[pLoop->iTab]; - Table *pTab = pItem->pTab; - pTab->tabFlags |= TF_StatsUsed; - if( nSearch > pTab->nRowLogEst - && (pTab->tabFlags & TF_HasStat1)!=0 - ){ + if( nSearch > pTab->nRowLogEst ){ testcase( pItem->fg.jointype & JT_LEFT ); pLoop->wsFlags |= WHERE_BLOOMFILTER; pLoop->wsFlags &= ~WHERE_IDX_ONLY; - WHERETRACE(0xffff, ( + WHERETRACE(0xffffffff, ( "-> use Bloom-filter on loop %c because there are ~%.1e " "lookups into %s which has only ~%.1e rows\n", pLoop->cId, (double)sqlite3LogEstToInt(nSearch), pTab->zName, @@ -157310,6 +166595,109 @@ static SQLITE_NOINLINE void whereCheckIfBloomFilterIsUseful( } /* +** The index pIdx is used by a query and contains one or more expressions. +** In other words pIdx is an index on an expression. iIdxCur is the cursor +** number for the index and iDataCur is the cursor number for the corresponding +** table. +** +** This routine adds IndexedExpr entries to the Parse->pIdxEpr field for +** each of the expressions in the index so that the expression code generator +** will know to replace occurrences of the indexed expression with +** references to the corresponding column of the index. +*/ +static SQLITE_NOINLINE void whereAddIndexedExpr( + Parse *pParse, /* Add IndexedExpr entries to pParse->pIdxEpr */ + Index *pIdx, /* The index-on-expression that contains the expressions */ + int iIdxCur, /* Cursor number for pIdx */ + SrcItem *pTabItem /* The FROM clause entry for the table */ +){ + int i; + IndexedExpr *p; + Table *pTab; + assert( pIdx->bHasExpr ); + pTab = pIdx->pTable; + for(i=0; i<pIdx->nColumn; i++){ + Expr *pExpr; + int j = pIdx->aiColumn[i]; + int bMaybeNullRow; + if( j==XN_EXPR ){ + pExpr = pIdx->aColExpr->a[i].pExpr; + testcase( pTabItem->fg.jointype & JT_LEFT ); + testcase( pTabItem->fg.jointype & JT_RIGHT ); + testcase( pTabItem->fg.jointype & JT_LTORJ ); + bMaybeNullRow = (pTabItem->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))!=0; + }else if( j>=0 && (pTab->aCol[j].colFlags & COLFLAG_VIRTUAL)!=0 ){ + pExpr = sqlite3ColumnExpr(pTab, &pTab->aCol[j]); + bMaybeNullRow = 0; + }else{ + continue; + } + if( sqlite3ExprIsConstant(pExpr) ) continue; + if( pExpr->op==TK_FUNCTION ){ + /* Functions that might set a subtype should not be replaced by the + ** value taken from an expression index since the index omits the + ** subtype. https://sqlite.org/forum/forumpost/68d284c86b082c3e */ + int n; + FuncDef *pDef; + sqlite3 *db = pParse->db; + assert( ExprUseXList(pExpr) ); + n = pExpr->x.pList ? pExpr->x.pList->nExpr : 0; + pDef = sqlite3FindFunction(db, pExpr->u.zToken, n, ENC(db), 0); + if( pDef==0 || (pDef->funcFlags & SQLITE_RESULT_SUBTYPE)!=0 ){ + continue; + } + } + p = sqlite3DbMallocRaw(pParse->db, sizeof(IndexedExpr)); + if( p==0 ) break; + p->pIENext = pParse->pIdxEpr; +#ifdef WHERETRACE_ENABLED + if( sqlite3WhereTrace & 0x200 ){ + sqlite3DebugPrintf("New pParse->pIdxEpr term {%d,%d}\n", iIdxCur, i); + if( sqlite3WhereTrace & 0x5000 ) sqlite3ShowExpr(pExpr); + } +#endif + p->pExpr = sqlite3ExprDup(pParse->db, pExpr, 0); + p->iDataCur = pTabItem->iCursor; + p->iIdxCur = iIdxCur; + p->iIdxCol = i; + p->bMaybeNullRow = bMaybeNullRow; + if( sqlite3IndexAffinityStr(pParse->db, pIdx) ){ + p->aff = pIdx->zColAff[i]; + } +#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS + p->zIdxName = pIdx->zName; +#endif + pParse->pIdxEpr = p; + if( p->pIENext==0 ){ + void *pArg = (void*)&pParse->pIdxEpr; + sqlite3ParserAddCleanup(pParse, whereIndexedExprCleanup, pArg); + } + } +} + +/* +** Set the reverse-scan order mask to one for all tables in the query +** with the exception of MATERIALIZED common table expressions that have +** their own internal ORDER BY clauses. +** +** This implements the PRAGMA reverse_unordered_selects=ON setting. +** (Also SQLITE_DBCONFIG_REVERSE_SCANORDER). +*/ +static SQLITE_NOINLINE void whereReverseScanOrder(WhereInfo *pWInfo){ + int ii; + for(ii=0; ii<pWInfo->pTabList->nSrc; ii++){ + SrcItem *pItem = &pWInfo->pTabList->a[ii]; + if( !pItem->fg.isCte + || pItem->u2.pCteUse->eM10d!=M10d_Yes + || NEVER(pItem->pSelect==0) + || pItem->pSelect->pOrderBy==0 + ){ + pWInfo->revMask |= MASKBIT(ii); + } + } +} + +/* ** Generate the beginning of the loop used for WHERE clause processing. ** The return value is a pointer to an opaque structure that contains ** information needed to terminate the loop. Later, the calling routine @@ -157367,7 +166755,7 @@ static SQLITE_NOINLINE void whereCheckIfBloomFilterIsUseful( ** ** OUTER JOINS ** -** An outer join of tables t1 and t2 is conceptally coded as follows: +** An outer join of tables t1 and t2 is conceptually coded as follows: ** ** foreach row1 in t1 do ** flag = 0 @@ -157403,7 +166791,7 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( Expr *pWhere, /* The WHERE clause */ ExprList *pOrderBy, /* An ORDER BY (or GROUP BY) clause, or NULL */ ExprList *pResultSet, /* Query result set. Req'd for DISTINCT */ - Select *pLimit, /* Use this LIMIT/OFFSET clause, if any */ + Select *pSelect, /* The entire SELECT statement */ u16 wctrlFlags, /* The WHERE_* flags defined in sqliteInt.h */ int iAuxArg /* If WHERE_OR_SUBCLAUSE is set, index cursor number ** If WHERE_USE_LIMIT, then the limit amount */ @@ -157437,7 +166825,10 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( /* An ORDER/GROUP BY clause of more than 63 terms cannot be optimized */ testcase( pOrderBy && pOrderBy->nExpr==BMS-1 ); - if( pOrderBy && pOrderBy->nExpr>=BMS ) pOrderBy = 0; + if( pOrderBy && pOrderBy->nExpr>=BMS ){ + pOrderBy = 0; + wctrlFlags &= ~WHERE_WANT_DISTINCT; + } /* The number of tables in the FROM clause is limited by the number of ** bits in a Bitmask @@ -157462,7 +166853,10 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( ** field (type Bitmask) it must be aligned on an 8-byte boundary on ** some architectures. Hence the ROUND8() below. */ - nByteWInfo = ROUND8(sizeof(WhereInfo)+(nTabList-1)*sizeof(WhereLevel)); + nByteWInfo = ROUND8P(sizeof(WhereInfo)); + if( nTabList>1 ){ + nByteWInfo = ROUND8P(nByteWInfo + (nTabList-1)*sizeof(WhereLevel)); + } pWInfo = sqlite3DbMallocRawNN(db, nByteWInfo + sizeof(WhereLoop)); if( db->mallocFailed ){ sqlite3DbFree(db, pWInfo); @@ -157472,7 +166866,9 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( pWInfo->pParse = pParse; pWInfo->pTabList = pTabList; pWInfo->pOrderBy = pOrderBy; +#if WHERETRACE_ENABLED pWInfo->pWhere = pWhere; +#endif pWInfo->pResultSet = pResultSet; pWInfo->aiCurOnePass[0] = pWInfo->aiCurOnePass[1] = -1; pWInfo->nLevel = nTabList; @@ -157480,9 +166876,7 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( pWInfo->wctrlFlags = wctrlFlags; pWInfo->iLimit = iAuxArg; pWInfo->savedNQueryLoop = pParse->nQueryLoop; -#ifndef SQLITE_OMIT_VIRTUALTABLE - pWInfo->pLimit = pLimit; -#endif + pWInfo->pSelect = pSelect; memset(&pWInfo->nOBSat, 0, offsetof(WhereInfo,sWC) - offsetof(WhereInfo,nOBSat)); memset(&pWInfo->a[0], 0, sizeof(WhereLoop)+nTabList*sizeof(WhereLevel)); @@ -157522,7 +166916,7 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( ** ** The N-th term of the FROM clause is assigned a bitmask of 1<<N. ** - ** The rule of the previous sentence ensures thta if X is the bitmask for + ** The rule of the previous sentence ensures that if X is the bitmask for ** a table T, then X-1 is the bitmask for all other tables to the left of T. ** Knowing the bitmask for all tables to the left of a left join is ** important. Ticket #3015. @@ -157551,25 +166945,50 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( /* Analyze all of the subexpressions. */ sqlite3WhereExprAnalyze(pTabList, &pWInfo->sWC); - sqlite3WhereAddLimit(&pWInfo->sWC, pLimit); - if( db->mallocFailed ) goto whereBeginError; + if( pSelect && pSelect->pLimit ){ + sqlite3WhereAddLimit(&pWInfo->sWC, pSelect); + } + if( pParse->nErr ) goto whereBeginError; - /* Special case: WHERE terms that do not refer to any tables in the join - ** (constant expressions). Evaluate each such term, and jump over all the - ** generated code if the result is not true. + /* The False-WHERE-Term-Bypass optimization: + ** + ** If there are WHERE terms that are false, then no rows will be output, + ** so skip over all of the code generated here. + ** + ** Conditions: ** - ** Do not do this if the expression contains non-deterministic functions - ** that are not within a sub-select. This is not strictly required, but - ** preserves SQLite's legacy behaviour in the following two cases: + ** (1) The WHERE term must not refer to any tables in the join. + ** (2) The term must not come from an ON clause on the + ** right-hand side of a LEFT or FULL JOIN. + ** (3) The term must not come from an ON clause, or there must be + ** no RIGHT or FULL OUTER joins in pTabList. + ** (4) If the expression contains non-deterministic functions + ** that are not within a sub-select. This is not required + ** for correctness but rather to preserves SQLite's legacy + ** behaviour in the following two cases: ** - ** FROM ... WHERE random()>0; -- eval random() once per row - ** FROM ... WHERE (SELECT random())>0; -- eval random() once overall + ** WHERE random()>0; -- eval random() once per row + ** WHERE (SELECT random())>0; -- eval random() just once overall + ** + ** Note that the Where term need not be a constant in order for this + ** optimization to apply, though it does need to be constant relative to + ** the current subquery (condition 1). The term might include variables + ** from outer queries so that the value of the term changes from one + ** invocation of the current subquery to the next. */ for(ii=0; ii<sWLB.pWC->nBase; ii++){ - WhereTerm *pT = &sWLB.pWC->a[ii]; + WhereTerm *pT = &sWLB.pWC->a[ii]; /* A term of the WHERE clause */ + Expr *pX; /* The expression of pT */ if( pT->wtFlags & TERM_VIRTUAL ) continue; - if( pT->prereqAll==0 && (nTabList==0 || exprIsDeterministic(pT->pExpr)) ){ - sqlite3ExprIfFalse(pParse, pT->pExpr, pWInfo->iBreak, SQLITE_JUMPIFNULL); + pX = pT->pExpr; + assert( pX!=0 ); + assert( pT->prereqAll!=0 || !ExprHasProperty(pX, EP_OuterON) ); + if( pT->prereqAll==0 /* Conditions (1) and (2) */ + && (nTabList==0 || exprIsDeterministic(pX)) /* Condition (4) */ + && !(ExprHasProperty(pX, EP_InnerON) /* Condition (3) */ + && (pTabList->a[0].fg.jointype & JT_LTORJ)!=0 ) + ){ + sqlite3ExprIfFalse(pParse, pX, pWInfo->iBreak, SQLITE_JUMPIFNULL); pT->wtFlags |= TERM_CODED; } } @@ -157592,13 +167011,13 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( /* Construct the WhereLoop objects */ #if defined(WHERETRACE_ENABLED) - if( sqlite3WhereTrace & 0xffff ){ + if( sqlite3WhereTrace & 0xffffffff ){ sqlite3DebugPrintf("*** Optimizer Start *** (wctrlFlags: 0x%x",wctrlFlags); if( wctrlFlags & WHERE_USE_LIMIT ){ sqlite3DebugPrintf(", limit: %d", iAuxArg); } sqlite3DebugPrintf(")\n"); - if( sqlite3WhereTrace & 0x100 ){ + if( sqlite3WhereTrace & 0x8000 ){ Select sSelect; memset(&sSelect, 0, sizeof(sSelect)); sSelect.selFlags = SF_WhereBegin; @@ -157608,10 +167027,10 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( sSelect.pEList = pResultSet; sqlite3TreeViewSelect(0, &sSelect, 0); } - } - if( sqlite3WhereTrace & 0x100 ){ /* Display all terms of the WHERE clause */ - sqlite3DebugPrintf("---- WHERE clause at start of analysis:\n"); - sqlite3WhereClausePrint(sWLB.pWC); + if( sqlite3WhereTrace & 0x4000 ){ /* Display all WHERE clause terms */ + sqlite3DebugPrintf("---- WHERE clause at start of analysis:\n"); + sqlite3WhereClausePrint(sWLB.pWC); + } } #endif @@ -157627,7 +167046,7 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( ** loops will be built using the revised truthProb values. */ if( sWLB.bldFlags2 & SQLITE_BLDF2_2NDPASS ){ WHERETRACE_ALL_LOOPS(pWInfo, sWLB.pWC); - WHERETRACE(0xffff, + WHERETRACE(0xffffffff, ("**** Redo all loop computations due to" " TERM_HIGHTRUTH changes ****\n")); while( pWInfo->pLoops ){ @@ -157647,9 +167066,20 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( wherePathSolver(pWInfo, pWInfo->nRowOut+1); if( db->mallocFailed ) goto whereBeginError; } + + /* TUNING: Assume that a DISTINCT clause on a subquery reduces + ** the output size by a factor of 8 (LogEst -30). + */ + if( (pWInfo->wctrlFlags & WHERE_WANT_DISTINCT)!=0 ){ + WHERETRACE(0x0080,("nRowOut reduced from %d to %d due to DISTINCT\n", + pWInfo->nRowOut, pWInfo->nRowOut-30)); + pWInfo->nRowOut -= 30; + } + } + assert( pWInfo->pTabList!=0 ); if( pWInfo->pOrderBy==0 && (db->flags & SQLITE_ReverseOrder)!=0 ){ - pWInfo->revMask = ALLBITS; + whereReverseScanOrder(pWInfo); } if( pParse->nErr ){ goto whereBeginError; @@ -157713,11 +167143,11 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( } #if defined(WHERETRACE_ENABLED) - if( sqlite3WhereTrace & 0x100 ){ /* Display all terms of the WHERE clause */ + if( sqlite3WhereTrace & 0x4000 ){ /* Display all terms of the WHERE clause */ sqlite3DebugPrintf("---- WHERE clause at end of analysis:\n"); sqlite3WhereClausePrint(sWLB.pWC); } - WHERETRACE(0xffff,("*** Optimizer Finished ***\n")); + WHERETRACE(0xffffffff,("*** Optimizer Finished ***\n")); #endif pWInfo->pParse->nQueryLoop += pWInfo->nRowOut; @@ -157749,6 +167179,7 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( 0!=(wctrlFlags & WHERE_ONEPASS_MULTIROW) && !IsVirtual(pTabList->a[0].pTab) && (0==(wsFlags & WHERE_MULTI_OR) || (wctrlFlags & WHERE_DUPLICATES_OK)) + && OptimizationEnabled(db, SQLITE_OnePass) )){ pWInfo->eOnePass = bOnerow ? ONEPASS_SINGLE : ONEPASS_MULTI; if( HasRowid(pTabList->a[0].pTab) && (wsFlags & WHERE_IDX_ONLY) ){ @@ -157784,8 +167215,10 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( /* noop */ }else #endif - if( (pLoop->wsFlags & WHERE_IDX_ONLY)==0 - && (wctrlFlags & WHERE_OR_SUBCLAUSE)==0 ){ + if( ((pLoop->wsFlags & WHERE_IDX_ONLY)==0 + && (wctrlFlags & WHERE_OR_SUBCLAUSE)==0) + || (pTabItem->fg.jointype & (JT_LTORJ|JT_RIGHT))!=0 + ){ int op = OP_OpenRead; if( pWInfo->eOnePass!=ONEPASS_OFF ){ op = OP_OpenWrite; @@ -157810,7 +167243,7 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( assert( n<=pTab->nCol ); } #ifdef SQLITE_ENABLE_CURSOR_HINTS - if( pLoop->u.btree.pIndex!=0 ){ + if( pLoop->u.btree.pIndex!=0 && (pTab->tabFlags & TF_WithoutRowid)==0 ){ sqlite3VdbeChangeP5(v, OPFLAG_SEEKEQ|bFordelete); }else #endif @@ -157852,8 +167285,17 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( op = OP_ReopenIdx; }else{ iIndexCur = pParse->nTab++; + if( pIx->bHasExpr && OptimizationEnabled(db, SQLITE_IndexedExpr) ){ + whereAddIndexedExpr(pParse, pIx, iIndexCur, pTabItem); + } + if( pIx->pPartIdxWhere && (pTabItem->fg.jointype & JT_RIGHT)==0 ){ + wherePartIdxExpr( + pParse, pIx, pIx->pPartIdxWhere, 0, iIndexCur, pTabItem + ); + } } pLevel->iIdxCur = iIndexCur; + assert( pIx!=0 ); assert( pIx->pSchema==pTab->pSchema ); assert( iIndexCur>=0 ); if( op ){ @@ -157887,6 +167329,37 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( } } if( iDb>=0 ) sqlite3CodeVerifySchema(pParse, iDb); + if( (pTabItem->fg.jointype & JT_RIGHT)!=0 + && (pLevel->pRJ = sqlite3WhereMalloc(pWInfo, sizeof(WhereRightJoin)))!=0 + ){ + WhereRightJoin *pRJ = pLevel->pRJ; + pRJ->iMatch = pParse->nTab++; + pRJ->regBloom = ++pParse->nMem; + sqlite3VdbeAddOp2(v, OP_Blob, 65536, pRJ->regBloom); + pRJ->regReturn = ++pParse->nMem; + sqlite3VdbeAddOp2(v, OP_Null, 0, pRJ->regReturn); + assert( pTab==pTabItem->pTab ); + if( HasRowid(pTab) ){ + KeyInfo *pInfo; + sqlite3VdbeAddOp2(v, OP_OpenEphemeral, pRJ->iMatch, 1); + pInfo = sqlite3KeyInfoAlloc(pParse->db, 1, 0); + if( pInfo ){ + pInfo->aColl[0] = 0; + pInfo->aSortFlags[0] = 0; + sqlite3VdbeAppendP4(v, pInfo, P4_KEYINFO); + } + }else{ + Index *pPk = sqlite3PrimaryKeyIndex(pTab); + sqlite3VdbeAddOp2(v, OP_OpenEphemeral, pRJ->iMatch, pPk->nKeyCol); + sqlite3VdbeSetP4KeyInfo(pParse, pPk); + } + pLoop->wsFlags &= ~WHERE_IDX_ONLY; + /* The nature of RIGHT JOIN processing is such that it messes up + ** the output order. So omit any ORDER BY/GROUP BY elimination + ** optimizations. We need to do an actual sort for RIGHT JOIN. */ + pWInfo->nOBSat = 0; + pWInfo->eDistinct = WHERE_DISTINCT_UNORDERED; + } } pWInfo->iTop = sqlite3VdbeCurrentAddr(v); if( db->mallocFailed ) goto whereBeginError; @@ -157898,14 +167371,25 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( for(ii=0; ii<nTabList; ii++){ int addrExplain; int wsFlags; + SrcItem *pSrc; if( pParse->nErr ) goto whereBeginError; pLevel = &pWInfo->a[ii]; wsFlags = pLevel->pWLoop->wsFlags; + pSrc = &pTabList->a[pLevel->iFrom]; + if( pSrc->fg.isMaterialized ){ + if( pSrc->fg.isCorrelated ){ + sqlite3VdbeAddOp2(v, OP_Gosub, pSrc->regReturn, pSrc->addrFillSub); + }else{ + int iOnce = sqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v); + sqlite3VdbeAddOp2(v, OP_Gosub, pSrc->regReturn, pSrc->addrFillSub); + sqlite3VdbeJumpHere(v, iOnce); + } + } + assert( pTabList == pWInfo->pTabList ); if( (wsFlags & (WHERE_AUTO_INDEX|WHERE_BLOOMFILTER))!=0 ){ if( (wsFlags & WHERE_AUTO_INDEX)!=0 ){ #ifndef SQLITE_OMIT_AUTOMATIC_INDEX - constructAutomaticIndex(pParse, &pWInfo->sWC, - &pTabList->a[pLevel->iFrom], notReady, pLevel); + constructAutomaticIndex(pParse, &pWInfo->sWC, notReady, pLevel); #endif }else{ sqlite3ConstructBloomFilter(pWInfo, ii, pLevel, notReady); @@ -157931,11 +167415,14 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( /* Jump here if malloc fails */ whereBeginError: if( pWInfo ){ - testcase( pWInfo->pExprMods!=0 ); - whereUndoExprMods(pWInfo); pParse->nQueryLoop = pWInfo->savedNQueryLoop; whereInfoFree(db, pWInfo); } +#ifdef WHERETRACE_ENABLED + /* Prevent harmless compiler warnings about debugging routines + ** being declared but never used */ + sqlite3ShowWhereLoopList(0); +#endif /* WHERETRACE_ENABLED */ return 0; } @@ -157992,6 +167479,7 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ SrcList *pTabList = pWInfo->pTabList; sqlite3 *db = pParse->db; int iEnd = sqlite3VdbeCurrentAddr(v); + int nRJ = 0; /* Generate loop termination code. */ @@ -157999,6 +167487,17 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ for(i=pWInfo->nLevel-1; i>=0; i--){ int addr; pLevel = &pWInfo->a[i]; + if( pLevel->pRJ ){ + /* Terminate the subroutine that forms the interior of the loop of + ** the RIGHT JOIN table */ + WhereRightJoin *pRJ = pLevel->pRJ; + sqlite3VdbeResolveLabel(v, pLevel->addrCont); + pLevel->addrCont = 0; + pRJ->endSubrtn = sqlite3VdbeCurrentAddr(v); + sqlite3VdbeAddOp3(v, OP_Return, pRJ->regReturn, pRJ->addrSubrtn, 1); + VdbeCoverage(v); + nRJ++; + } pLoop = pLevel->pWLoop; if( pLevel->op!=OP_Noop ){ #ifndef SQLITE_DISABLE_SKIPAHEAD_DISTINCT @@ -158026,7 +167525,7 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ } #endif /* SQLITE_DISABLE_SKIPAHEAD_DISTINCT */ /* The common case: Advance to the next row */ - sqlite3VdbeResolveLabel(v, pLevel->addrCont); + if( pLevel->addrCont ) sqlite3VdbeResolveLabel(v, pLevel->addrCont); sqlite3VdbeAddOp3(v, pLevel->op, pLevel->p1, pLevel->p2, pLevel->p3); sqlite3VdbeChangeP5(v, pLevel->p5); VdbeCoverage(v); @@ -158041,7 +167540,7 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ #ifndef SQLITE_DISABLE_SKIPAHEAD_DISTINCT if( addrSeek ) sqlite3VdbeJumpHere(v, addrSeek); #endif - }else{ + }else if( pLevel->addrCont ){ sqlite3VdbeResolveLabel(v, pLevel->addrCont); } if( (pLoop->wsFlags & WHERE_IN_ABLE)!=0 && pLevel->u.in.nIn>0 ){ @@ -158091,6 +167590,10 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ } } sqlite3VdbeResolveLabel(v, pLevel->addrBrk); + if( pLevel->pRJ ){ + sqlite3VdbeAddOp3(v, OP_Return, pLevel->pRJ->regReturn, 0, 1); + VdbeCoverage(v); + } if( pLevel->addrSkip ){ sqlite3VdbeGoto(v, pLevel->addrSkip); VdbeComment((v, "next skip-scan on %s", pLoop->u.btree.pIndex->zName)); @@ -158134,11 +167637,6 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ pWInfo->pTabList->a[pLevel->iFrom].pTab->zName)); } - /* The "break" point is here, just past the end of the outer loop. - ** Set it. - */ - sqlite3VdbeResolveLabel(v, pWInfo->iBreak); - assert( pWInfo->nLevel<=pTabList->nSrc ); for(i=0, pLevel=pWInfo->a; i<pWInfo->nLevel; i++, pLevel++){ int k, last; @@ -158149,6 +167647,15 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ assert( pTab!=0 ); pLoop = pLevel->pWLoop; + /* Do RIGHT JOIN processing. Generate code that will output the + ** unmatched rows of the right operand of the RIGHT JOIN with + ** all of the columns of the left operand set to NULL. + */ + if( pLevel->pRJ ){ + sqlite3WhereRightJoinLoop(pWInfo, i, pLevel); + continue; + } + /* For a co-routine, change all OP_Column references to the table of ** the co-routine into OP_Copy of result contained in a register. ** OP_Rowid becomes OP_Null. @@ -158160,29 +167667,6 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ continue; } -#ifdef SQLITE_ENABLE_EARLY_CURSOR_CLOSE - /* Close all of the cursors that were opened by sqlite3WhereBegin. - ** Except, do not close cursors that will be reused by the OR optimization - ** (WHERE_OR_SUBCLAUSE). And do not close the OP_OpenWrite cursors - ** created for the ONEPASS optimization. - */ - if( (pTab->tabFlags & TF_Ephemeral)==0 - && !IsView(pTab) - && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0 - ){ - int ws = pLoop->wsFlags; - if( pWInfo->eOnePass==ONEPASS_OFF && (ws & WHERE_IDX_ONLY)==0 ){ - sqlite3VdbeAddOp1(v, OP_Close, pTabItem->iCursor); - } - if( (ws & WHERE_INDEXED)!=0 - && (ws & (WHERE_IPK|WHERE_AUTO_INDEX))==0 - && pLevel->iIdxCur!=pWInfo->aiCurOnePass[1] - ){ - sqlite3VdbeAddOp1(v, OP_Close, pLevel->iIdxCur); - } - } -#endif - /* If this scan uses an index, make VDBE code substitutions to read data ** from the index instead of from the table where possible. In some cases ** this optimization prevents the table from ever being read, which can @@ -158207,10 +167691,28 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ }else{ last = pWInfo->iEndWhere; } + if( pIdx->bHasExpr ){ + IndexedExpr *p = pParse->pIdxEpr; + while( p ){ + if( p->iIdxCur==pLevel->iIdxCur ){ +#ifdef WHERETRACE_ENABLED + if( sqlite3WhereTrace & 0x200 ){ + sqlite3DebugPrintf("Disable pParse->pIdxEpr term {%d,%d}\n", + p->iIdxCur, p->iIdxCol); + if( sqlite3WhereTrace & 0x5000 ) sqlite3ShowExpr(p->pExpr); + } +#endif + p->iDataCur = -1; + p->iIdxCur = -1; + } + p = p->pIENext; + } + } k = pLevel->addrBody + 1; #ifdef SQLITE_DEBUG if( db->flags & SQLITE_VdbeAddopTrace ){ - printf("TRANSLATE opcodes in range %d..%d\n", k, last-1); + printf("TRANSLATE cursor %d->%d in opcode range %d..%d\n", + pLevel->iTabCur, pLevel->iIdxCur, k, last-1); } /* Proof that the "+1" on the k value above is safe */ pOp = sqlite3VdbeGetOp(v, k - 1); @@ -158283,11 +167785,16 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ } } + /* The "break" point is here, just past the end of the outer loop. + ** Set it. + */ + sqlite3VdbeResolveLabel(v, pWInfo->iBreak); + /* Final cleanup */ - if( pWInfo->pExprMods ) whereUndoExprMods(pWInfo); pParse->nQueryLoop = pWInfo->savedNQueryLoop; whereInfoFree(db, pWInfo); + pParse->withinRJSubrtn -= nRJ; return; } @@ -158412,7 +167919,7 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ ** ** These are the same built-in window functions supported by Postgres. ** Although the behaviour of aggregate window functions (functions that -** can be used as either aggregates or window funtions) allows them to +** can be used as either aggregates or window functions) allows them to ** be implemented using an API, built-in window functions are much more ** esoteric. Additionally, some window functions (e.g. nth_value()) ** may only be implemented by caching the entire partition in memory. @@ -158942,7 +168449,7 @@ static Window *windowFind(Parse *pParse, Window *pList, const char *zName){ ** is the Window object representing the associated OVER clause. This ** function updates the contents of pWin as follows: ** -** * If the OVER clause refered to a named window (as in "max(x) OVER win"), +** * If the OVER clause referred to a named window (as in "max(x) OVER win"), ** search list pList for a matching WINDOW definition, and update pWin ** accordingly. If no such WINDOW clause can be found, leave an error ** in pParse. @@ -159019,7 +168526,7 @@ SQLITE_PRIVATE void sqlite3WindowUpdate( } } } - pWin->pFunc = pFunc; + pWin->pWFunc = pFunc; } /* @@ -159080,6 +168587,7 @@ static int selectWindowRewriteExprCb(Walker *pWalker, Expr *pExpr){ } /* no break */ deliberate_fall_through + case TK_IF_NULL_ROW: case TK_AGG_FUNCTION: case TK_COLUMN: { int iCol = -1; @@ -159195,7 +168703,6 @@ static ExprList *exprListAppendList( for(i=0; i<pAppend->nExpr; i++){ sqlite3 *db = pParse->db; Expr *pDup = sqlite3ExprDup(db, pAppend->a[i].pExpr, 0); - assert( pDup==0 || !ExprHasProperty(pDup, EP_MemToken) ); if( db->mallocFailed ){ sqlite3ExprDelete(db, pDup); break; @@ -159211,7 +168718,7 @@ static ExprList *exprListAppendList( } } pList = sqlite3ExprListAppend(pParse, pList, pDup); - if( pList ) pList->a[nInit+i].sortFlags = pAppend->a[i].sortFlags; + if( pList ) pList->a[nInit+i].fg.sortFlags = pAppend->a[i].fg.sortFlags; } } return pList; @@ -159331,9 +168838,9 @@ SQLITE_PRIVATE int sqlite3WindowRewrite(Parse *pParse, Select *p){ for(pWin=pMWin; pWin; pWin=pWin->pNextWin){ ExprList *pArgs; assert( ExprUseXList(pWin->pOwner) ); - assert( pWin->pFunc!=0 ); + assert( pWin->pWFunc!=0 ); pArgs = pWin->pOwner->x.pList; - if( pWin->pFunc->funcFlags & SQLITE_FUNC_SUBTYPE ){ + if( pWin->pWFunc->funcFlags & SQLITE_SUBTYPE ){ selectWindowRewriteEList(pParse, pMWin, pSrc, pArgs, pTab, &pSublist); pWin->iArgCol = (pSublist ? pSublist->nExpr : 0); pWin->bExprArgs = 1; @@ -159365,7 +168872,7 @@ SQLITE_PRIVATE int sqlite3WindowRewrite(Parse *pParse, Select *p){ pSub = sqlite3SelectNew( pParse, pSublist, pSrc, pWhere, pGroupBy, pHaving, pSort, 0, 0 ); - SELECTTRACE(1,pParse,pSub, + TREETRACE(0x40,pParse,pSub, ("New window-function subquery in FROM clause of (%u/%p)\n", p->selId, p)); p->pSrc = sqlite3SrcListAppend(pParse, 0, 0, 0); @@ -159375,6 +168882,7 @@ SQLITE_PRIVATE int sqlite3WindowRewrite(Parse *pParse, Select *p){ if( p->pSrc ){ Table *pTab2; p->pSrc->a[0].pSelect = pSub; + p->pSrc->a[0].fg.isCorrelated = 1; sqlite3SrcListAssignCursors(pParse, p->pSrc); pSub->selFlags |= SF_Expanded|SF_OrderByReqd; pTab2 = sqlite3ResultSetOfSelect(pParse, pSub, SQLITE_AFF_NONE); @@ -159562,7 +169070,7 @@ SQLITE_PRIVATE Window *sqlite3WindowAssemble( } /* -** Window *pWin has just been created from a WINDOW clause. Tokne pBase +** Window *pWin has just been created from a WINDOW clause. Token pBase ** is the base window. Earlier windows from the same WINDOW clause are ** stored in the linked list starting at pWin->pNextWin. This function ** either updates *pWin according to the base specification, or else @@ -159606,8 +169114,9 @@ SQLITE_PRIVATE void sqlite3WindowAttach(Parse *pParse, Expr *p, Window *pWin){ if( p ){ assert( p->op==TK_FUNCTION ); assert( pWin ); + assert( ExprIsFullSize(p) ); p->y.pWin = pWin; - ExprSetProperty(p, EP_WinFunc); + ExprSetProperty(p, EP_WinFunc|EP_FullSize); pWin->pOwner = p; if( (p->flags & EP_Distinct) && pWin->eFrmType!=TK_FILTER ){ sqlite3ErrorMsg(pParse, @@ -159715,7 +169224,7 @@ SQLITE_PRIVATE void sqlite3WindowCodeInit(Parse *pParse, Select *pSelect){ } for(pWin=pMWin; pWin; pWin=pWin->pNextWin){ - FuncDef *p = pWin->pFunc; + FuncDef *p = pWin->pWFunc; if( (p->funcFlags & SQLITE_FUNC_MINMAX) && pWin->eStart!=TK_UNBOUNDED ){ /* The inline versions of min() and max() require a single ephemeral ** table and 3 registers. The registers are used as follows: @@ -159732,7 +169241,7 @@ SQLITE_PRIVATE void sqlite3WindowCodeInit(Parse *pParse, Select *pSelect){ pWin->csrApp = pParse->nTab++; pWin->regApp = pParse->nMem+1; pParse->nMem += 3; - if( pKeyInfo && pWin->pFunc->zName[1]=='i' ){ + if( pKeyInfo && pWin->pWFunc->zName[1]=='i' ){ assert( pKeyInfo->aSortFlags[0]==0 ); pKeyInfo->aSortFlags[0] = KEYINFO_ORDER_DESC; } @@ -159868,7 +169377,7 @@ struct WindowCsrAndReg { ** ** (ORDER BY a, b GROUPS BETWEEN 2 PRECEDING AND 2 FOLLOWING) ** -** The windows functions implmentation caches the input rows in a temp +** The windows functions implementation caches the input rows in a temp ** table, sorted by "a, b" (it actually populates the cache lazily, and ** aggressively removes rows once they are no longer required, but that's ** a mere detail). It keeps three cursors open on the temp table. One @@ -159955,7 +169464,7 @@ static void windowAggStep( Vdbe *v = sqlite3GetVdbe(pParse); Window *pWin; for(pWin=pMWin; pWin; pWin=pWin->pNextWin){ - FuncDef *pFunc = pWin->pFunc; + FuncDef *pFunc = pWin->pWFunc; int regArg; int nArg = pWin->bExprArgs ? 0 : windowArgCount(pWin); int i; @@ -160069,7 +169578,7 @@ static void windowAggFinal(WindowCodeArg *p, int bFin){ for(pWin=pMWin; pWin; pWin=pWin->pNextWin){ if( pMWin->regStartRowid==0 - && (pWin->pFunc->funcFlags & SQLITE_FUNC_MINMAX) + && (pWin->pWFunc->funcFlags & SQLITE_FUNC_MINMAX) && (pWin->eStart!=TK_UNBOUNDED) ){ sqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regResult); @@ -160083,12 +169592,12 @@ static void windowAggFinal(WindowCodeArg *p, int bFin){ int nArg = windowArgCount(pWin); if( bFin ){ sqlite3VdbeAddOp2(v, OP_AggFinal, pWin->regAccum, nArg); - sqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF); + sqlite3VdbeAppendP4(v, pWin->pWFunc, P4_FUNCDEF); sqlite3VdbeAddOp2(v, OP_Copy, pWin->regAccum, pWin->regResult); sqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regAccum); }else{ sqlite3VdbeAddOp3(v, OP_AggValue,pWin->regAccum,nArg,pWin->regResult); - sqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF); + sqlite3VdbeAppendP4(v, pWin->pWFunc, P4_FUNCDEF); } } } @@ -160217,7 +169726,7 @@ static void windowReturnOneRow(WindowCodeArg *p){ Window *pWin; for(pWin=pMWin; pWin; pWin=pWin->pNextWin){ - FuncDef *pFunc = pWin->pFunc; + FuncDef *pFunc = pWin->pWFunc; assert( ExprUseXList(pWin->pOwner) ); if( pFunc->zName==nth_valueName || pFunc->zName==first_valueName @@ -160289,7 +169798,7 @@ static int windowInitAccum(Parse *pParse, Window *pMWin){ int nArg = 0; Window *pWin; for(pWin=pMWin; pWin; pWin=pWin->pNextWin){ - FuncDef *pFunc = pWin->pFunc; + FuncDef *pFunc = pWin->pWFunc; assert( pWin->regAccum ); sqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regAccum); nArg = MAX(nArg, windowArgCount(pWin)); @@ -160319,7 +169828,7 @@ static int windowCacheFrame(Window *pMWin){ Window *pWin; if( pMWin->regStartRowid ) return 1; for(pWin=pMWin; pWin; pWin=pWin->pNextWin){ - FuncDef *pFunc = pWin->pFunc; + FuncDef *pFunc = pWin->pWFunc; if( (pFunc->zName==nth_valueName) || (pFunc->zName==first_valueName) || (pFunc->zName==leadName) @@ -160412,7 +169921,7 @@ static void windowCodeRangeTest( assert( op==OP_Ge || op==OP_Gt || op==OP_Le ); assert( pOrderBy && pOrderBy->nExpr==1 ); - if( pOrderBy->a[0].sortFlags & KEYINFO_ORDER_DESC ){ + if( pOrderBy->a[0].fg.sortFlags & KEYINFO_ORDER_DESC ){ switch( op ){ case OP_Ge: op = OP_Le; break; case OP_Gt: op = OP_Lt; break; @@ -160445,7 +169954,7 @@ static void windowCodeRangeTest( ** Additionally, if either reg1 or reg2 are NULL but the jump to lbl is ** not taken, control jumps over the comparison operator coded below this ** block. */ - if( pOrderBy->a[0].sortFlags & KEYINFO_ORDER_BIGNULL ){ + if( pOrderBy->a[0].fg.sortFlags & KEYINFO_ORDER_BIGNULL ){ /* This block runs if reg1 contains a NULL. */ int addr = sqlite3VdbeAddOp1(v, OP_NotNull, reg1); VdbeCoverage(v); switch( op ){ @@ -160466,10 +169975,9 @@ static void windowCodeRangeTest( /* This block runs if reg1 is not NULL, but reg2 is. */ sqlite3VdbeJumpHere(v, addr); - sqlite3VdbeAddOp2(v, OP_IsNull, reg2, lbl); VdbeCoverage(v); - if( op==OP_Gt || op==OP_Ge ){ - sqlite3VdbeChangeP2(v, -1, addrDone); - } + sqlite3VdbeAddOp2(v, OP_IsNull, reg2, + (op==OP_Gt || op==OP_Ge) ? addrDone : lbl); + VdbeCoverage(v); } /* Register reg1 currently contains csr1.peerVal (the peer-value from csr1). @@ -160677,7 +170185,7 @@ SQLITE_PRIVATE Window *sqlite3WindowDup(sqlite3 *db, Expr *pOwner, Window *p){ pNew->zName = sqlite3DbStrDup(db, p->zName); pNew->zBase = sqlite3DbStrDup(db, p->zBase); pNew->pFilter = sqlite3ExprDup(db, p->pFilter, 0); - pNew->pFunc = p->pFunc; + pNew->pWFunc = p->pWFunc; pNew->pPartition = sqlite3ExprListDup(db, p->pPartition, 0); pNew->pOrderBy = sqlite3ExprListDup(db, p->pOrderBy, 0); pNew->eFrmType = p->eFrmType; @@ -160878,7 +170386,7 @@ static int windowExprGtZero(Parse *pParse, Expr *pExpr){ ** ** For the most part, the patterns above are adapted to support UNBOUNDED by ** assuming that it is equivalent to "infinity PRECEDING/FOLLOWING" and -** CURRENT ROW by assuming that it is equivilent to "0 PRECEDING/FOLLOWING". +** CURRENT ROW by assuming that it is equivalent to "0 PRECEDING/FOLLOWING". ** This is optimized of course - branches that will never be taken and ** conditions that are always true are omitted from the VM code. The only ** exceptional case is: @@ -161157,7 +170665,7 @@ SQLITE_PRIVATE void sqlite3WindowCodeStep( } /* Allocate registers for the array of values from the sub-query, the - ** samve values in record form, and the rowid used to insert said record + ** same values in record form, and the rowid used to insert said record ** into the ephemeral table. */ regNew = pParse->nMem+1; pParse->nMem += nInput; @@ -161241,8 +170749,7 @@ SQLITE_PRIVATE void sqlite3WindowCodeStep( VdbeCoverageNeverNullIf(v, op==OP_Ge); /* NeverNull because bound <expr> */ VdbeCoverageNeverNullIf(v, op==OP_Le); /* values previously checked */ windowAggFinal(&s, 0); - sqlite3VdbeAddOp2(v, OP_Rewind, s.current.csr, 1); - VdbeCoverageNeverTaken(v); + sqlite3VdbeAddOp1(v, OP_Rewind, s.current.csr); windowReturnOneRow(&s); sqlite3VdbeAddOp1(v, OP_ResetSorter, s.current.csr); sqlite3VdbeAddOp2(v, OP_Goto, 0, lblWhereEnd); @@ -161254,13 +170761,10 @@ SQLITE_PRIVATE void sqlite3WindowCodeStep( } if( pMWin->eStart!=TK_UNBOUNDED ){ - sqlite3VdbeAddOp2(v, OP_Rewind, s.start.csr, 1); - VdbeCoverageNeverTaken(v); + sqlite3VdbeAddOp1(v, OP_Rewind, s.start.csr); } - sqlite3VdbeAddOp2(v, OP_Rewind, s.current.csr, 1); - VdbeCoverageNeverTaken(v); - sqlite3VdbeAddOp2(v, OP_Rewind, s.end.csr, 1); - VdbeCoverageNeverTaken(v); + sqlite3VdbeAddOp1(v, OP_Rewind, s.current.csr); + sqlite3VdbeAddOp1(v, OP_Rewind, s.end.csr); if( regPeer && pOrderBy ){ sqlite3VdbeAddOp3(v, OP_Copy, regNewPeer, regPeer, pOrderBy->nExpr-1); sqlite3VdbeAddOp3(v, OP_Copy, regPeer, s.start.reg, pOrderBy->nExpr-1); @@ -161402,7 +170906,8 @@ SQLITE_PRIVATE void sqlite3WindowCodeStep( /************** End of window.c **********************************************/ /************** Begin file parse.c *******************************************/ /* This file is automatically generated by Lemon from input grammar -** source file "parse.y". */ +** source file "parse.y". +*/ /* ** 2001-09-15 ** @@ -161419,7 +170924,7 @@ SQLITE_PRIVATE void sqlite3WindowCodeStep( ** The canonical source code to this file ("parse.y") is a Lemon grammar ** file that specifies the input grammar and actions to take while parsing. ** That input file is processed by Lemon to generate a C-language -** implementation of a parser for the given grammer. You might be reading +** implementation of a parser for the given grammar. You might be reading ** this comment as part of the translated C-code. Edits should be made ** to the original parse.y sources. */ @@ -161563,7 +171068,7 @@ static void updateDeleteLimitError( p->affExpr = 0; p->flags = EP_Leaf; ExprClearVVAProperties(p); - p->iAgg = -1; + /* p->iAgg = -1; // Not required */ p->pLeft = p->pRight = 0; p->pAggInfo = 0; memset(&p->x, 0, sizeof(p->x)); @@ -161896,6 +171401,7 @@ typedef union { With* yy521; const char* yy522; Expr* yy528; + OnOrUsing yy561; struct FrameBound yy595; } YYMINORTYPE; #ifndef YYSTACKDEPTH @@ -161912,18 +171418,18 @@ typedef union { #define sqlite3ParserCTX_FETCH Parse *pParse=yypParser->pParse; #define sqlite3ParserCTX_STORE yypParser->pParse=pParse; #define YYFALLBACK 1 -#define YYNSTATE 574 -#define YYNRULE 402 +#define YYNSTATE 579 +#define YYNRULE 405 #define YYNRULE_WITH_ACTION 340 #define YYNTOKEN 185 -#define YY_MAX_SHIFT 573 -#define YY_MIN_SHIFTREDUCE 831 -#define YY_MAX_SHIFTREDUCE 1232 -#define YY_ERROR_ACTION 1233 -#define YY_ACCEPT_ACTION 1234 -#define YY_NO_ACTION 1235 -#define YY_MIN_REDUCE 1236 -#define YY_MAX_REDUCE 1637 +#define YY_MAX_SHIFT 578 +#define YY_MIN_SHIFTREDUCE 838 +#define YY_MAX_SHIFTREDUCE 1242 +#define YY_ERROR_ACTION 1243 +#define YY_ACCEPT_ACTION 1244 +#define YY_NO_ACTION 1245 +#define YY_MIN_REDUCE 1246 +#define YY_MAX_REDUCE 1650 /************* End control #defines *******************************************/ #define YY_NLOOKAHEAD ((int)(sizeof(yy_lookahead)/sizeof(yy_lookahead[0]))) @@ -161990,427 +171496,430 @@ typedef union { ** yy_default[] Default action for each state. ** *********** Begin parsing tables **********************************************/ -#define YY_ACTTAB_COUNT (2070) +#define YY_ACTTAB_COUNT (2100) static const YYACTIONTYPE yy_action[] = { - /* 0 */ 566, 1307, 566, 1286, 201, 201, 566, 116, 112, 222, - /* 10 */ 566, 1307, 377, 566, 116, 112, 222, 397, 408, 409, - /* 20 */ 1260, 378, 1269, 41, 41, 41, 41, 1412, 1517, 71, - /* 30 */ 71, 967, 1258, 41, 41, 491, 71, 71, 272, 968, - /* 40 */ 298, 476, 298, 123, 124, 114, 1210, 1210, 1044, 1047, - /* 50 */ 1036, 1036, 121, 121, 122, 122, 122, 122, 543, 409, - /* 60 */ 1234, 1, 1, 573, 2, 1238, 548, 116, 112, 222, - /* 70 */ 309, 480, 142, 548, 1272, 524, 116, 112, 222, 1320, - /* 80 */ 417, 523, 547, 123, 124, 114, 1210, 1210, 1044, 1047, - /* 90 */ 1036, 1036, 121, 121, 122, 122, 122, 122, 424, 116, - /* 100 */ 112, 222, 120, 120, 120, 120, 119, 119, 118, 118, - /* 110 */ 118, 117, 113, 444, 277, 277, 277, 277, 560, 560, - /* 120 */ 560, 1558, 376, 1560, 1186, 375, 1157, 563, 1157, 563, - /* 130 */ 409, 1558, 537, 252, 219, 1553, 99, 141, 449, 6, - /* 140 */ 365, 233, 120, 120, 120, 120, 119, 119, 118, 118, - /* 150 */ 118, 117, 113, 444, 123, 124, 114, 1210, 1210, 1044, - /* 160 */ 1047, 1036, 1036, 121, 121, 122, 122, 122, 122, 138, - /* 170 */ 289, 1186, 1546, 448, 118, 118, 118, 117, 113, 444, - /* 180 */ 125, 1186, 1187, 1188, 144, 465, 334, 566, 150, 127, - /* 190 */ 444, 122, 122, 122, 122, 115, 120, 120, 120, 120, - /* 200 */ 119, 119, 118, 118, 118, 117, 113, 444, 454, 419, - /* 210 */ 13, 13, 215, 120, 120, 120, 120, 119, 119, 118, - /* 220 */ 118, 118, 117, 113, 444, 422, 308, 557, 1186, 1187, - /* 230 */ 1188, 441, 440, 409, 1271, 122, 122, 122, 122, 120, - /* 240 */ 120, 120, 120, 119, 119, 118, 118, 118, 117, 113, - /* 250 */ 444, 1543, 98, 1033, 1033, 1045, 1048, 123, 124, 114, - /* 260 */ 1210, 1210, 1044, 1047, 1036, 1036, 121, 121, 122, 122, - /* 270 */ 122, 122, 566, 406, 405, 1186, 566, 409, 1217, 319, - /* 280 */ 1217, 80, 81, 120, 120, 120, 120, 119, 119, 118, - /* 290 */ 118, 118, 117, 113, 444, 70, 70, 1186, 1604, 71, - /* 300 */ 71, 123, 124, 114, 1210, 1210, 1044, 1047, 1036, 1036, - /* 310 */ 121, 121, 122, 122, 122, 122, 120, 120, 120, 120, - /* 320 */ 119, 119, 118, 118, 118, 117, 113, 444, 1037, 210, - /* 330 */ 1186, 365, 1186, 1187, 1188, 245, 548, 399, 504, 501, - /* 340 */ 500, 108, 558, 138, 4, 516, 933, 433, 499, 217, - /* 350 */ 514, 522, 352, 879, 1186, 1187, 1188, 383, 561, 566, - /* 360 */ 120, 120, 120, 120, 119, 119, 118, 118, 118, 117, - /* 370 */ 113, 444, 277, 277, 16, 16, 1598, 441, 440, 153, - /* 380 */ 409, 445, 13, 13, 1279, 563, 1214, 1186, 1187, 1188, - /* 390 */ 1003, 1216, 264, 555, 1574, 186, 566, 427, 138, 1215, - /* 400 */ 308, 557, 472, 138, 123, 124, 114, 1210, 1210, 1044, - /* 410 */ 1047, 1036, 1036, 121, 121, 122, 122, 122, 122, 55, - /* 420 */ 55, 413, 1023, 507, 1217, 1186, 1217, 474, 106, 106, - /* 430 */ 1312, 1312, 1186, 171, 566, 384, 107, 380, 445, 568, - /* 440 */ 567, 430, 1543, 1013, 332, 549, 565, 263, 280, 360, - /* 450 */ 510, 355, 509, 250, 491, 308, 557, 71, 71, 351, - /* 460 */ 308, 557, 374, 120, 120, 120, 120, 119, 119, 118, - /* 470 */ 118, 118, 117, 113, 444, 1013, 1013, 1015, 1016, 27, - /* 480 */ 277, 277, 1186, 1187, 1188, 1152, 566, 528, 409, 1186, - /* 490 */ 1187, 1188, 348, 563, 548, 1260, 533, 517, 1152, 1516, - /* 500 */ 317, 1152, 285, 550, 485, 569, 566, 569, 482, 51, - /* 510 */ 51, 207, 123, 124, 114, 1210, 1210, 1044, 1047, 1036, - /* 520 */ 1036, 121, 121, 122, 122, 122, 122, 171, 1412, 13, - /* 530 */ 13, 409, 277, 277, 1186, 505, 119, 119, 118, 118, - /* 540 */ 118, 117, 113, 444, 429, 563, 518, 220, 515, 1552, - /* 550 */ 365, 546, 1186, 6, 532, 123, 124, 114, 1210, 1210, - /* 560 */ 1044, 1047, 1036, 1036, 121, 121, 122, 122, 122, 122, - /* 570 */ 145, 120, 120, 120, 120, 119, 119, 118, 118, 118, - /* 580 */ 117, 113, 444, 245, 566, 474, 504, 501, 500, 566, - /* 590 */ 1481, 1186, 1187, 1188, 1310, 1310, 499, 1186, 149, 425, - /* 600 */ 1186, 480, 409, 274, 365, 952, 872, 56, 56, 1186, - /* 610 */ 1187, 1188, 71, 71, 120, 120, 120, 120, 119, 119, - /* 620 */ 118, 118, 118, 117, 113, 444, 123, 124, 114, 1210, - /* 630 */ 1210, 1044, 1047, 1036, 1036, 121, 121, 122, 122, 122, - /* 640 */ 122, 409, 541, 1552, 83, 865, 98, 6, 928, 529, - /* 650 */ 848, 543, 151, 927, 1186, 1187, 1188, 1186, 1187, 1188, - /* 660 */ 290, 1543, 187, 1633, 395, 123, 124, 114, 1210, 1210, - /* 670 */ 1044, 1047, 1036, 1036, 121, 121, 122, 122, 122, 122, - /* 680 */ 566, 954, 566, 453, 953, 120, 120, 120, 120, 119, - /* 690 */ 119, 118, 118, 118, 117, 113, 444, 1152, 221, 1186, - /* 700 */ 331, 453, 452, 13, 13, 13, 13, 1003, 365, 463, - /* 710 */ 1152, 193, 409, 1152, 382, 1543, 1170, 32, 297, 474, - /* 720 */ 195, 1527, 5, 952, 120, 120, 120, 120, 119, 119, - /* 730 */ 118, 118, 118, 117, 113, 444, 123, 124, 114, 1210, - /* 740 */ 1210, 1044, 1047, 1036, 1036, 121, 121, 122, 122, 122, - /* 750 */ 122, 409, 1067, 419, 1186, 1024, 1186, 1187, 1188, 1186, - /* 760 */ 419, 332, 460, 320, 544, 1545, 442, 442, 442, 566, - /* 770 */ 3, 117, 113, 444, 453, 123, 124, 114, 1210, 1210, - /* 780 */ 1044, 1047, 1036, 1036, 121, 121, 122, 122, 122, 122, - /* 790 */ 1473, 566, 15, 15, 293, 120, 120, 120, 120, 119, - /* 800 */ 119, 118, 118, 118, 117, 113, 444, 1186, 566, 1486, - /* 810 */ 1412, 1186, 1187, 1188, 13, 13, 1186, 1187, 1188, 1544, - /* 820 */ 271, 271, 409, 286, 308, 557, 1008, 1486, 1488, 196, - /* 830 */ 288, 71, 71, 563, 120, 120, 120, 120, 119, 119, - /* 840 */ 118, 118, 118, 117, 113, 444, 123, 124, 114, 1210, - /* 850 */ 1210, 1044, 1047, 1036, 1036, 121, 121, 122, 122, 122, - /* 860 */ 122, 409, 201, 1087, 1186, 1187, 1188, 1324, 304, 1529, - /* 870 */ 388, 278, 278, 450, 564, 402, 922, 922, 566, 563, - /* 880 */ 566, 426, 491, 480, 563, 123, 124, 114, 1210, 1210, - /* 890 */ 1044, 1047, 1036, 1036, 121, 121, 122, 122, 122, 122, - /* 900 */ 1486, 71, 71, 13, 13, 120, 120, 120, 120, 119, - /* 910 */ 119, 118, 118, 118, 117, 113, 444, 566, 545, 566, - /* 920 */ 1577, 573, 2, 1238, 1092, 1092, 488, 1480, 309, 1525, - /* 930 */ 142, 324, 409, 836, 837, 838, 312, 1320, 305, 363, - /* 940 */ 43, 43, 57, 57, 120, 120, 120, 120, 119, 119, - /* 950 */ 118, 118, 118, 117, 113, 444, 123, 124, 114, 1210, - /* 960 */ 1210, 1044, 1047, 1036, 1036, 121, 121, 122, 122, 122, - /* 970 */ 122, 12, 277, 277, 566, 1152, 409, 572, 428, 1238, - /* 980 */ 465, 334, 296, 474, 309, 563, 142, 249, 1152, 308, - /* 990 */ 557, 1152, 321, 1320, 323, 491, 455, 71, 71, 233, - /* 1000 */ 283, 101, 114, 1210, 1210, 1044, 1047, 1036, 1036, 121, - /* 1010 */ 121, 122, 122, 122, 122, 120, 120, 120, 120, 119, - /* 1020 */ 119, 118, 118, 118, 117, 113, 444, 1108, 277, 277, - /* 1030 */ 1412, 448, 394, 1230, 439, 277, 277, 248, 247, 246, - /* 1040 */ 1319, 563, 1109, 313, 198, 294, 491, 1318, 563, 464, - /* 1050 */ 566, 1427, 394, 1130, 1023, 233, 414, 1110, 295, 120, - /* 1060 */ 120, 120, 120, 119, 119, 118, 118, 118, 117, 113, - /* 1070 */ 444, 1014, 104, 71, 71, 1013, 322, 496, 908, 566, - /* 1080 */ 277, 277, 277, 277, 1108, 1261, 415, 448, 909, 361, - /* 1090 */ 1571, 1315, 409, 563, 952, 563, 9, 202, 255, 1109, - /* 1100 */ 316, 487, 44, 44, 249, 559, 415, 1013, 1013, 1015, - /* 1110 */ 443, 1231, 409, 1603, 1110, 897, 123, 124, 114, 1210, - /* 1120 */ 1210, 1044, 1047, 1036, 1036, 121, 121, 122, 122, 122, - /* 1130 */ 122, 1231, 409, 1207, 215, 554, 123, 124, 114, 1210, - /* 1140 */ 1210, 1044, 1047, 1036, 1036, 121, 121, 122, 122, 122, - /* 1150 */ 122, 1131, 1631, 470, 1631, 255, 123, 111, 114, 1210, - /* 1160 */ 1210, 1044, 1047, 1036, 1036, 121, 121, 122, 122, 122, - /* 1170 */ 122, 1131, 1632, 414, 1632, 120, 120, 120, 120, 119, - /* 1180 */ 119, 118, 118, 118, 117, 113, 444, 221, 209, 351, - /* 1190 */ 1207, 1207, 147, 1426, 491, 120, 120, 120, 120, 119, - /* 1200 */ 119, 118, 118, 118, 117, 113, 444, 1256, 539, 519, - /* 1210 */ 888, 551, 952, 12, 566, 120, 120, 120, 120, 119, - /* 1220 */ 119, 118, 118, 118, 117, 113, 444, 538, 566, 860, - /* 1230 */ 1129, 361, 1571, 346, 1356, 409, 1163, 58, 58, 339, - /* 1240 */ 1355, 508, 277, 277, 277, 277, 277, 277, 1207, 889, - /* 1250 */ 1129, 59, 59, 459, 363, 563, 566, 563, 96, 563, - /* 1260 */ 124, 114, 1210, 1210, 1044, 1047, 1036, 1036, 121, 121, - /* 1270 */ 122, 122, 122, 122, 566, 1412, 566, 281, 1186, 60, - /* 1280 */ 60, 110, 392, 392, 391, 266, 389, 860, 1163, 845, - /* 1290 */ 566, 481, 566, 436, 341, 1152, 344, 61, 61, 62, - /* 1300 */ 62, 967, 227, 1550, 315, 431, 540, 6, 1152, 968, - /* 1310 */ 566, 1152, 314, 45, 45, 46, 46, 512, 120, 120, - /* 1320 */ 120, 120, 119, 119, 118, 118, 118, 117, 113, 444, - /* 1330 */ 416, 173, 1532, 47, 47, 1186, 1187, 1188, 108, 558, - /* 1340 */ 325, 4, 229, 1551, 928, 566, 437, 6, 566, 927, - /* 1350 */ 164, 566, 1290, 137, 1190, 561, 566, 1549, 566, 1089, - /* 1360 */ 566, 6, 566, 1089, 531, 566, 868, 8, 49, 49, - /* 1370 */ 228, 50, 50, 566, 63, 63, 566, 457, 445, 64, - /* 1380 */ 64, 65, 65, 14, 14, 66, 66, 407, 129, 129, - /* 1390 */ 555, 566, 458, 566, 1505, 486, 67, 67, 566, 52, - /* 1400 */ 52, 546, 407, 467, 535, 410, 226, 1023, 566, 534, - /* 1410 */ 308, 557, 1190, 407, 68, 68, 69, 69, 566, 1023, - /* 1420 */ 566, 53, 53, 868, 1014, 106, 106, 525, 1013, 566, - /* 1430 */ 1504, 159, 159, 107, 451, 445, 568, 567, 471, 307, - /* 1440 */ 1013, 160, 160, 76, 76, 566, 1548, 466, 407, 407, - /* 1450 */ 6, 1225, 54, 54, 478, 276, 219, 566, 887, 886, - /* 1460 */ 1013, 1013, 1015, 84, 206, 1206, 230, 282, 72, 72, - /* 1470 */ 329, 483, 1013, 1013, 1015, 1016, 27, 1576, 1174, 447, - /* 1480 */ 130, 130, 281, 148, 105, 38, 103, 392, 392, 391, - /* 1490 */ 266, 389, 566, 1126, 845, 396, 566, 108, 558, 566, - /* 1500 */ 4, 311, 566, 30, 17, 566, 279, 227, 566, 315, - /* 1510 */ 108, 558, 468, 4, 561, 73, 73, 314, 566, 157, - /* 1520 */ 157, 566, 131, 131, 526, 132, 132, 561, 128, 128, - /* 1530 */ 566, 158, 158, 566, 31, 291, 566, 445, 330, 521, - /* 1540 */ 98, 152, 152, 420, 136, 136, 1005, 229, 254, 555, - /* 1550 */ 445, 479, 336, 135, 135, 164, 133, 133, 137, 134, - /* 1560 */ 134, 875, 555, 535, 566, 473, 566, 254, 536, 475, - /* 1570 */ 335, 254, 98, 894, 895, 228, 535, 566, 1023, 566, - /* 1580 */ 1074, 534, 210, 232, 106, 106, 1352, 75, 75, 77, - /* 1590 */ 77, 1023, 107, 340, 445, 568, 567, 106, 106, 1013, - /* 1600 */ 74, 74, 42, 42, 566, 107, 343, 445, 568, 567, - /* 1610 */ 410, 497, 1013, 251, 359, 308, 557, 1135, 349, 875, - /* 1620 */ 98, 1070, 345, 251, 358, 1591, 347, 48, 48, 1017, - /* 1630 */ 1303, 1013, 1013, 1015, 1016, 27, 1289, 1287, 1074, 451, - /* 1640 */ 961, 925, 254, 110, 1013, 1013, 1015, 1016, 27, 1174, - /* 1650 */ 447, 970, 971, 281, 108, 558, 1288, 4, 392, 392, - /* 1660 */ 391, 266, 389, 1343, 1086, 845, 1086, 1085, 858, 1085, - /* 1670 */ 146, 561, 926, 354, 110, 303, 364, 553, 227, 1364, - /* 1680 */ 315, 108, 558, 1411, 4, 1339, 492, 1017, 314, 1350, - /* 1690 */ 1565, 552, 1417, 1268, 445, 204, 1259, 1247, 561, 1246, - /* 1700 */ 1248, 1584, 269, 1336, 367, 369, 555, 371, 11, 212, - /* 1710 */ 393, 225, 1393, 284, 1398, 456, 287, 327, 229, 328, - /* 1720 */ 292, 445, 1386, 216, 333, 1403, 164, 477, 373, 137, - /* 1730 */ 1402, 400, 502, 555, 1286, 1023, 357, 1477, 199, 1587, - /* 1740 */ 211, 106, 106, 932, 1476, 1225, 228, 556, 175, 107, - /* 1750 */ 200, 445, 568, 567, 258, 387, 1013, 1524, 1522, 223, - /* 1760 */ 1222, 418, 1023, 83, 208, 79, 82, 184, 106, 106, - /* 1770 */ 1482, 169, 177, 461, 179, 462, 107, 1399, 445, 568, - /* 1780 */ 567, 410, 180, 1013, 495, 181, 308, 557, 1013, 1013, - /* 1790 */ 1015, 1016, 27, 182, 35, 235, 100, 558, 398, 4, - /* 1800 */ 96, 1405, 1404, 36, 484, 469, 1407, 188, 401, 1471, - /* 1810 */ 451, 89, 1493, 561, 239, 1013, 1013, 1015, 1016, 27, - /* 1820 */ 490, 338, 270, 241, 192, 342, 493, 242, 403, 1249, - /* 1830 */ 243, 511, 432, 1297, 1306, 91, 445, 1305, 1304, 879, - /* 1840 */ 217, 434, 435, 1570, 1276, 1602, 520, 1601, 555, 301, - /* 1850 */ 527, 404, 1275, 302, 356, 1274, 1600, 95, 1347, 366, - /* 1860 */ 1296, 362, 1348, 368, 256, 257, 1556, 1555, 438, 1346, - /* 1870 */ 370, 126, 1345, 10, 1371, 546, 381, 1023, 102, 1457, - /* 1880 */ 97, 530, 34, 106, 106, 570, 1180, 372, 265, 1329, - /* 1890 */ 379, 107, 203, 445, 568, 567, 1328, 385, 1013, 1370, - /* 1900 */ 386, 267, 268, 571, 1244, 161, 1239, 162, 1509, 1510, - /* 1910 */ 1508, 143, 1507, 299, 832, 213, 214, 78, 446, 205, - /* 1920 */ 310, 306, 163, 224, 1084, 140, 1082, 318, 165, 176, - /* 1930 */ 1013, 1013, 1015, 1016, 27, 178, 1206, 231, 911, 234, - /* 1940 */ 326, 1098, 183, 421, 166, 167, 411, 185, 85, 423, - /* 1950 */ 412, 86, 174, 87, 168, 88, 1101, 236, 1097, 237, - /* 1960 */ 154, 18, 238, 254, 337, 1219, 489, 1090, 240, 190, - /* 1970 */ 37, 847, 189, 494, 358, 244, 350, 506, 191, 877, - /* 1980 */ 90, 498, 19, 20, 503, 92, 353, 890, 300, 170, - /* 1990 */ 155, 93, 513, 94, 1168, 156, 1050, 1137, 39, 218, - /* 2000 */ 273, 275, 1136, 960, 194, 955, 110, 1154, 1158, 253, - /* 2010 */ 7, 1162, 1156, 21, 22, 1161, 1142, 23, 24, 25, - /* 2020 */ 33, 542, 26, 260, 197, 98, 1065, 1051, 1049, 1053, - /* 2030 */ 1107, 1054, 1106, 259, 28, 40, 562, 1018, 859, 109, - /* 2040 */ 29, 921, 390, 1176, 172, 139, 1175, 1235, 261, 1235, - /* 2050 */ 1235, 1235, 1235, 1235, 1235, 1235, 1235, 262, 1235, 1235, - /* 2060 */ 1235, 1235, 1235, 1235, 1235, 1235, 1235, 1235, 1593, 1592, + /* 0 */ 572, 210, 572, 119, 116, 231, 572, 119, 116, 231, + /* 10 */ 572, 1317, 379, 1296, 410, 566, 566, 566, 572, 411, + /* 20 */ 380, 1317, 1279, 42, 42, 42, 42, 210, 1529, 72, + /* 30 */ 72, 974, 421, 42, 42, 495, 305, 281, 305, 975, + /* 40 */ 399, 72, 72, 126, 127, 81, 1217, 1217, 1054, 1057, + /* 50 */ 1044, 1044, 124, 124, 125, 125, 125, 125, 480, 411, + /* 60 */ 1244, 1, 1, 578, 2, 1248, 554, 119, 116, 231, + /* 70 */ 319, 484, 147, 484, 528, 119, 116, 231, 533, 1330, + /* 80 */ 419, 527, 143, 126, 127, 81, 1217, 1217, 1054, 1057, + /* 90 */ 1044, 1044, 124, 124, 125, 125, 125, 125, 119, 116, + /* 100 */ 231, 329, 123, 123, 123, 123, 122, 122, 121, 121, + /* 110 */ 121, 120, 117, 448, 286, 286, 286, 286, 446, 446, + /* 120 */ 446, 1568, 378, 1570, 1193, 377, 1164, 569, 1164, 569, + /* 130 */ 411, 1568, 541, 261, 228, 448, 102, 146, 453, 318, + /* 140 */ 563, 242, 123, 123, 123, 123, 122, 122, 121, 121, + /* 150 */ 121, 120, 117, 448, 126, 127, 81, 1217, 1217, 1054, + /* 160 */ 1057, 1044, 1044, 124, 124, 125, 125, 125, 125, 143, + /* 170 */ 296, 1193, 341, 452, 121, 121, 121, 120, 117, 448, + /* 180 */ 128, 1193, 1194, 1193, 149, 445, 444, 572, 120, 117, + /* 190 */ 448, 125, 125, 125, 125, 118, 123, 123, 123, 123, + /* 200 */ 122, 122, 121, 121, 121, 120, 117, 448, 458, 114, + /* 210 */ 13, 13, 550, 123, 123, 123, 123, 122, 122, 121, + /* 220 */ 121, 121, 120, 117, 448, 424, 318, 563, 1193, 1194, + /* 230 */ 1193, 150, 1225, 411, 1225, 125, 125, 125, 125, 123, + /* 240 */ 123, 123, 123, 122, 122, 121, 121, 121, 120, 117, + /* 250 */ 448, 469, 344, 1041, 1041, 1055, 1058, 126, 127, 81, + /* 260 */ 1217, 1217, 1054, 1057, 1044, 1044, 124, 124, 125, 125, + /* 270 */ 125, 125, 1282, 526, 224, 1193, 572, 411, 226, 519, + /* 280 */ 177, 83, 84, 123, 123, 123, 123, 122, 122, 121, + /* 290 */ 121, 121, 120, 117, 448, 1010, 16, 16, 1193, 134, + /* 300 */ 134, 126, 127, 81, 1217, 1217, 1054, 1057, 1044, 1044, + /* 310 */ 124, 124, 125, 125, 125, 125, 123, 123, 123, 123, + /* 320 */ 122, 122, 121, 121, 121, 120, 117, 448, 1045, 550, + /* 330 */ 1193, 375, 1193, 1194, 1193, 254, 1438, 401, 508, 505, + /* 340 */ 504, 112, 564, 570, 4, 929, 929, 435, 503, 342, + /* 350 */ 464, 330, 362, 396, 1238, 1193, 1194, 1193, 567, 572, + /* 360 */ 123, 123, 123, 123, 122, 122, 121, 121, 121, 120, + /* 370 */ 117, 448, 286, 286, 371, 1581, 1607, 445, 444, 155, + /* 380 */ 411, 449, 72, 72, 1289, 569, 1222, 1193, 1194, 1193, + /* 390 */ 86, 1224, 273, 561, 547, 520, 520, 572, 99, 1223, + /* 400 */ 6, 1281, 476, 143, 126, 127, 81, 1217, 1217, 1054, + /* 410 */ 1057, 1044, 1044, 124, 124, 125, 125, 125, 125, 554, + /* 420 */ 13, 13, 1031, 511, 1225, 1193, 1225, 553, 110, 110, + /* 430 */ 224, 572, 1239, 177, 572, 429, 111, 199, 449, 573, + /* 440 */ 449, 432, 1555, 1019, 327, 555, 1193, 272, 289, 370, + /* 450 */ 514, 365, 513, 259, 72, 72, 547, 72, 72, 361, + /* 460 */ 318, 563, 1613, 123, 123, 123, 123, 122, 122, 121, + /* 470 */ 121, 121, 120, 117, 448, 1019, 1019, 1021, 1022, 28, + /* 480 */ 286, 286, 1193, 1194, 1193, 1159, 572, 1612, 411, 904, + /* 490 */ 192, 554, 358, 569, 554, 940, 537, 521, 1159, 437, + /* 500 */ 415, 1159, 556, 1193, 1194, 1193, 572, 548, 548, 52, + /* 510 */ 52, 216, 126, 127, 81, 1217, 1217, 1054, 1057, 1044, + /* 520 */ 1044, 124, 124, 125, 125, 125, 125, 1193, 478, 136, + /* 530 */ 136, 411, 286, 286, 1493, 509, 122, 122, 121, 121, + /* 540 */ 121, 120, 117, 448, 1010, 569, 522, 219, 545, 545, + /* 550 */ 318, 563, 143, 6, 536, 126, 127, 81, 1217, 1217, + /* 560 */ 1054, 1057, 1044, 1044, 124, 124, 125, 125, 125, 125, + /* 570 */ 1557, 123, 123, 123, 123, 122, 122, 121, 121, 121, + /* 580 */ 120, 117, 448, 489, 1193, 1194, 1193, 486, 283, 1270, + /* 590 */ 960, 254, 1193, 375, 508, 505, 504, 1193, 342, 574, + /* 600 */ 1193, 574, 411, 294, 503, 960, 879, 193, 484, 318, + /* 610 */ 563, 386, 292, 382, 123, 123, 123, 123, 122, 122, + /* 620 */ 121, 121, 121, 120, 117, 448, 126, 127, 81, 1217, + /* 630 */ 1217, 1054, 1057, 1044, 1044, 124, 124, 125, 125, 125, + /* 640 */ 125, 411, 396, 1139, 1193, 872, 101, 286, 286, 1193, + /* 650 */ 1194, 1193, 375, 1096, 1193, 1194, 1193, 1193, 1194, 1193, + /* 660 */ 569, 459, 33, 375, 235, 126, 127, 81, 1217, 1217, + /* 670 */ 1054, 1057, 1044, 1044, 124, 124, 125, 125, 125, 125, + /* 680 */ 1437, 962, 572, 230, 961, 123, 123, 123, 123, 122, + /* 690 */ 122, 121, 121, 121, 120, 117, 448, 1159, 230, 1193, + /* 700 */ 158, 1193, 1194, 1193, 1556, 13, 13, 303, 960, 1233, + /* 710 */ 1159, 154, 411, 1159, 375, 1584, 1177, 5, 371, 1581, + /* 720 */ 431, 1239, 3, 960, 123, 123, 123, 123, 122, 122, + /* 730 */ 121, 121, 121, 120, 117, 448, 126, 127, 81, 1217, + /* 740 */ 1217, 1054, 1057, 1044, 1044, 124, 124, 125, 125, 125, + /* 750 */ 125, 411, 210, 571, 1193, 1032, 1193, 1194, 1193, 1193, + /* 760 */ 390, 855, 156, 1555, 376, 404, 1101, 1101, 492, 572, + /* 770 */ 469, 344, 1322, 1322, 1555, 126, 127, 81, 1217, 1217, + /* 780 */ 1054, 1057, 1044, 1044, 124, 124, 125, 125, 125, 125, + /* 790 */ 130, 572, 13, 13, 532, 123, 123, 123, 123, 122, + /* 800 */ 122, 121, 121, 121, 120, 117, 448, 304, 572, 457, + /* 810 */ 229, 1193, 1194, 1193, 13, 13, 1193, 1194, 1193, 1300, + /* 820 */ 467, 1270, 411, 1320, 1320, 1555, 1015, 457, 456, 436, + /* 830 */ 301, 72, 72, 1268, 123, 123, 123, 123, 122, 122, + /* 840 */ 121, 121, 121, 120, 117, 448, 126, 127, 81, 1217, + /* 850 */ 1217, 1054, 1057, 1044, 1044, 124, 124, 125, 125, 125, + /* 860 */ 125, 411, 384, 1076, 1159, 286, 286, 421, 314, 280, + /* 870 */ 280, 287, 287, 461, 408, 407, 1539, 1159, 569, 572, + /* 880 */ 1159, 1196, 569, 409, 569, 126, 127, 81, 1217, 1217, + /* 890 */ 1054, 1057, 1044, 1044, 124, 124, 125, 125, 125, 125, + /* 900 */ 457, 1485, 13, 13, 1541, 123, 123, 123, 123, 122, + /* 910 */ 122, 121, 121, 121, 120, 117, 448, 202, 572, 462, + /* 920 */ 1587, 578, 2, 1248, 843, 844, 845, 1563, 319, 409, + /* 930 */ 147, 6, 411, 257, 256, 255, 208, 1330, 9, 1196, + /* 940 */ 264, 72, 72, 1436, 123, 123, 123, 123, 122, 122, + /* 950 */ 121, 121, 121, 120, 117, 448, 126, 127, 81, 1217, + /* 960 */ 1217, 1054, 1057, 1044, 1044, 124, 124, 125, 125, 125, + /* 970 */ 125, 572, 286, 286, 572, 1213, 411, 577, 315, 1248, + /* 980 */ 421, 371, 1581, 356, 319, 569, 147, 495, 529, 1644, + /* 990 */ 397, 935, 495, 1330, 71, 71, 934, 72, 72, 242, + /* 1000 */ 1328, 105, 81, 1217, 1217, 1054, 1057, 1044, 1044, 124, + /* 1010 */ 124, 125, 125, 125, 125, 123, 123, 123, 123, 122, + /* 1020 */ 122, 121, 121, 121, 120, 117, 448, 1117, 286, 286, + /* 1030 */ 1422, 452, 1528, 1213, 443, 286, 286, 1492, 1355, 313, + /* 1040 */ 478, 569, 1118, 454, 351, 495, 354, 1266, 569, 209, + /* 1050 */ 572, 418, 179, 572, 1031, 242, 385, 1119, 523, 123, + /* 1060 */ 123, 123, 123, 122, 122, 121, 121, 121, 120, 117, + /* 1070 */ 448, 1020, 108, 72, 72, 1019, 13, 13, 915, 572, + /* 1080 */ 1498, 572, 286, 286, 98, 530, 1537, 452, 916, 1334, + /* 1090 */ 1329, 203, 411, 286, 286, 569, 152, 211, 1498, 1500, + /* 1100 */ 426, 569, 56, 56, 57, 57, 569, 1019, 1019, 1021, + /* 1110 */ 447, 572, 411, 531, 12, 297, 126, 127, 81, 1217, + /* 1120 */ 1217, 1054, 1057, 1044, 1044, 124, 124, 125, 125, 125, + /* 1130 */ 125, 572, 411, 867, 15, 15, 126, 127, 81, 1217, + /* 1140 */ 1217, 1054, 1057, 1044, 1044, 124, 124, 125, 125, 125, + /* 1150 */ 125, 373, 529, 264, 44, 44, 126, 115, 81, 1217, + /* 1160 */ 1217, 1054, 1057, 1044, 1044, 124, 124, 125, 125, 125, + /* 1170 */ 125, 1498, 478, 1271, 417, 123, 123, 123, 123, 122, + /* 1180 */ 122, 121, 121, 121, 120, 117, 448, 205, 1213, 495, + /* 1190 */ 430, 867, 468, 322, 495, 123, 123, 123, 123, 122, + /* 1200 */ 122, 121, 121, 121, 120, 117, 448, 572, 557, 1140, + /* 1210 */ 1642, 1422, 1642, 543, 572, 123, 123, 123, 123, 122, + /* 1220 */ 122, 121, 121, 121, 120, 117, 448, 572, 1422, 572, + /* 1230 */ 13, 13, 542, 323, 1325, 411, 334, 58, 58, 349, + /* 1240 */ 1422, 1170, 326, 286, 286, 549, 1213, 300, 895, 530, + /* 1250 */ 45, 45, 59, 59, 1140, 1643, 569, 1643, 565, 417, + /* 1260 */ 127, 81, 1217, 1217, 1054, 1057, 1044, 1044, 124, 124, + /* 1270 */ 125, 125, 125, 125, 1367, 373, 500, 290, 1193, 512, + /* 1280 */ 1366, 427, 394, 394, 393, 275, 391, 896, 1138, 852, + /* 1290 */ 478, 258, 1422, 1170, 463, 1159, 12, 331, 428, 333, + /* 1300 */ 1117, 460, 236, 258, 325, 460, 544, 1544, 1159, 1098, + /* 1310 */ 491, 1159, 324, 1098, 440, 1118, 335, 516, 123, 123, + /* 1320 */ 123, 123, 122, 122, 121, 121, 121, 120, 117, 448, + /* 1330 */ 1119, 318, 563, 1138, 572, 1193, 1194, 1193, 112, 564, + /* 1340 */ 201, 4, 238, 433, 935, 490, 285, 228, 1517, 934, + /* 1350 */ 170, 560, 572, 142, 1516, 567, 572, 60, 60, 572, + /* 1360 */ 416, 572, 441, 572, 535, 302, 875, 8, 487, 572, + /* 1370 */ 237, 572, 416, 572, 485, 61, 61, 572, 449, 62, + /* 1380 */ 62, 332, 63, 63, 46, 46, 47, 47, 361, 572, + /* 1390 */ 561, 572, 48, 48, 50, 50, 51, 51, 572, 295, + /* 1400 */ 64, 64, 482, 295, 539, 412, 471, 1031, 572, 538, + /* 1410 */ 318, 563, 65, 65, 66, 66, 409, 475, 572, 1031, + /* 1420 */ 572, 14, 14, 875, 1020, 110, 110, 409, 1019, 572, + /* 1430 */ 474, 67, 67, 111, 455, 449, 573, 449, 98, 317, + /* 1440 */ 1019, 132, 132, 133, 133, 572, 1561, 572, 974, 409, + /* 1450 */ 6, 1562, 68, 68, 1560, 6, 975, 572, 6, 1559, + /* 1460 */ 1019, 1019, 1021, 6, 346, 218, 101, 531, 53, 53, + /* 1470 */ 69, 69, 1019, 1019, 1021, 1022, 28, 1586, 1181, 451, + /* 1480 */ 70, 70, 290, 87, 215, 31, 1363, 394, 394, 393, + /* 1490 */ 275, 391, 350, 109, 852, 107, 572, 112, 564, 483, + /* 1500 */ 4, 1212, 572, 239, 153, 572, 39, 236, 1299, 325, + /* 1510 */ 112, 564, 1298, 4, 567, 572, 32, 324, 572, 54, + /* 1520 */ 54, 572, 1135, 353, 398, 165, 165, 567, 166, 166, + /* 1530 */ 572, 291, 355, 572, 17, 357, 572, 449, 77, 77, + /* 1540 */ 1313, 55, 55, 1297, 73, 73, 572, 238, 470, 561, + /* 1550 */ 449, 472, 364, 135, 135, 170, 74, 74, 142, 163, + /* 1560 */ 163, 374, 561, 539, 572, 321, 572, 886, 540, 137, + /* 1570 */ 137, 339, 1353, 422, 298, 237, 539, 572, 1031, 572, + /* 1580 */ 340, 538, 101, 369, 110, 110, 162, 131, 131, 164, + /* 1590 */ 164, 1031, 111, 368, 449, 573, 449, 110, 110, 1019, + /* 1600 */ 157, 157, 141, 141, 572, 111, 572, 449, 573, 449, + /* 1610 */ 412, 288, 1019, 572, 882, 318, 563, 572, 219, 572, + /* 1620 */ 241, 1012, 477, 263, 263, 894, 893, 140, 140, 138, + /* 1630 */ 138, 1019, 1019, 1021, 1022, 28, 139, 139, 525, 455, + /* 1640 */ 76, 76, 78, 78, 1019, 1019, 1021, 1022, 28, 1181, + /* 1650 */ 451, 572, 1083, 290, 112, 564, 1575, 4, 394, 394, + /* 1660 */ 393, 275, 391, 572, 1023, 852, 572, 479, 345, 263, + /* 1670 */ 101, 567, 882, 1376, 75, 75, 1421, 501, 236, 260, + /* 1680 */ 325, 112, 564, 359, 4, 101, 43, 43, 324, 49, + /* 1690 */ 49, 901, 902, 161, 449, 101, 977, 978, 567, 1079, + /* 1700 */ 1349, 260, 965, 932, 263, 114, 561, 1095, 517, 1095, + /* 1710 */ 1083, 1094, 865, 1094, 151, 933, 1144, 114, 238, 1361, + /* 1720 */ 558, 449, 1023, 559, 1426, 1278, 170, 1269, 1257, 142, + /* 1730 */ 1601, 1256, 1258, 561, 1594, 1031, 496, 278, 213, 1346, + /* 1740 */ 310, 110, 110, 939, 311, 312, 237, 11, 234, 111, + /* 1750 */ 221, 449, 573, 449, 293, 395, 1019, 1408, 337, 1403, + /* 1760 */ 1396, 338, 1031, 299, 343, 1413, 1412, 481, 110, 110, + /* 1770 */ 506, 402, 225, 1296, 206, 367, 111, 1358, 449, 573, + /* 1780 */ 449, 412, 1359, 1019, 1489, 1488, 318, 563, 1019, 1019, + /* 1790 */ 1021, 1022, 28, 562, 207, 220, 80, 564, 389, 4, + /* 1800 */ 1597, 1357, 552, 1356, 1233, 181, 267, 232, 1536, 1534, + /* 1810 */ 455, 1230, 420, 567, 82, 1019, 1019, 1021, 1022, 28, + /* 1820 */ 86, 217, 85, 1494, 190, 175, 183, 465, 185, 466, + /* 1830 */ 36, 1409, 186, 187, 188, 499, 449, 244, 37, 99, + /* 1840 */ 400, 1415, 1414, 488, 1417, 194, 473, 403, 561, 1483, + /* 1850 */ 248, 92, 1505, 494, 198, 279, 112, 564, 250, 4, + /* 1860 */ 348, 497, 405, 352, 1259, 251, 252, 515, 1316, 434, + /* 1870 */ 1315, 1314, 94, 567, 1307, 886, 1306, 1031, 226, 406, + /* 1880 */ 1611, 1610, 438, 110, 110, 1580, 1286, 524, 439, 308, + /* 1890 */ 266, 111, 1285, 449, 573, 449, 449, 309, 1019, 366, + /* 1900 */ 1284, 1609, 265, 1566, 1565, 442, 372, 1381, 561, 129, + /* 1910 */ 550, 1380, 10, 1470, 383, 106, 316, 551, 100, 35, + /* 1920 */ 534, 575, 212, 1339, 381, 387, 1187, 1338, 274, 276, + /* 1930 */ 1019, 1019, 1021, 1022, 28, 277, 413, 1031, 576, 1254, + /* 1940 */ 388, 1521, 1249, 110, 110, 167, 1522, 168, 148, 1520, + /* 1950 */ 1519, 111, 306, 449, 573, 449, 222, 223, 1019, 839, + /* 1960 */ 169, 79, 450, 214, 414, 233, 320, 145, 1093, 1091, + /* 1970 */ 328, 182, 171, 1212, 918, 184, 240, 336, 243, 1107, + /* 1980 */ 189, 172, 173, 423, 425, 88, 180, 191, 89, 90, + /* 1990 */ 1019, 1019, 1021, 1022, 28, 91, 174, 1110, 245, 1106, + /* 2000 */ 246, 159, 18, 247, 347, 1099, 263, 195, 1227, 493, + /* 2010 */ 249, 196, 38, 854, 498, 368, 253, 360, 897, 197, + /* 2020 */ 502, 93, 19, 20, 507, 884, 363, 510, 95, 307, + /* 2030 */ 160, 96, 518, 97, 1175, 1060, 1146, 40, 21, 227, + /* 2040 */ 176, 1145, 282, 284, 969, 200, 963, 114, 262, 1165, + /* 2050 */ 22, 23, 24, 1161, 1169, 25, 1163, 1150, 34, 26, + /* 2060 */ 1168, 546, 27, 204, 101, 103, 104, 1074, 7, 1061, + /* 2070 */ 1059, 1063, 1116, 1064, 1115, 268, 269, 29, 41, 270, + /* 2080 */ 1024, 866, 113, 30, 568, 392, 1183, 144, 178, 1182, + /* 2090 */ 271, 928, 1245, 1245, 1245, 1245, 1245, 1245, 1245, 1602, }; static const YYCODETYPE yy_lookahead[] = { - /* 0 */ 193, 223, 193, 225, 193, 193, 193, 274, 275, 276, - /* 10 */ 193, 233, 219, 193, 274, 275, 276, 206, 206, 19, - /* 20 */ 193, 219, 216, 216, 217, 216, 217, 193, 295, 216, - /* 30 */ 217, 31, 205, 216, 217, 193, 216, 217, 213, 39, - /* 40 */ 228, 193, 230, 43, 44, 45, 46, 47, 48, 49, + /* 0 */ 193, 193, 193, 274, 275, 276, 193, 274, 275, 276, + /* 10 */ 193, 223, 219, 225, 206, 210, 211, 212, 193, 19, + /* 20 */ 219, 233, 216, 216, 217, 216, 217, 193, 295, 216, + /* 30 */ 217, 31, 193, 216, 217, 193, 228, 213, 230, 39, + /* 40 */ 206, 216, 217, 43, 44, 45, 46, 47, 48, 49, /* 50 */ 50, 51, 52, 53, 54, 55, 56, 57, 193, 19, /* 60 */ 185, 186, 187, 188, 189, 190, 253, 274, 275, 276, - /* 70 */ 195, 193, 197, 253, 216, 262, 274, 275, 276, 204, - /* 80 */ 238, 204, 262, 43, 44, 45, 46, 47, 48, 49, - /* 90 */ 50, 51, 52, 53, 54, 55, 56, 57, 264, 274, - /* 100 */ 275, 276, 102, 103, 104, 105, 106, 107, 108, 109, + /* 70 */ 195, 193, 197, 193, 261, 274, 275, 276, 253, 204, + /* 80 */ 238, 204, 81, 43, 44, 45, 46, 47, 48, 49, + /* 90 */ 50, 51, 52, 53, 54, 55, 56, 57, 274, 275, + /* 100 */ 276, 262, 102, 103, 104, 105, 106, 107, 108, 109, /* 110 */ 110, 111, 112, 113, 239, 240, 239, 240, 210, 211, /* 120 */ 212, 314, 315, 314, 59, 316, 86, 252, 88, 252, - /* 130 */ 19, 314, 315, 256, 257, 309, 25, 72, 296, 313, - /* 140 */ 193, 266, 102, 103, 104, 105, 106, 107, 108, 109, + /* 130 */ 19, 314, 315, 256, 257, 113, 25, 72, 296, 138, + /* 140 */ 139, 266, 102, 103, 104, 105, 106, 107, 108, 109, /* 150 */ 110, 111, 112, 113, 43, 44, 45, 46, 47, 48, /* 160 */ 49, 50, 51, 52, 53, 54, 55, 56, 57, 81, - /* 170 */ 292, 59, 307, 298, 108, 109, 110, 111, 112, 113, - /* 180 */ 69, 116, 117, 118, 72, 128, 129, 193, 241, 22, + /* 170 */ 292, 59, 292, 298, 108, 109, 110, 111, 112, 113, + /* 180 */ 69, 116, 117, 118, 72, 106, 107, 193, 111, 112, /* 190 */ 113, 54, 55, 56, 57, 58, 102, 103, 104, 105, - /* 200 */ 106, 107, 108, 109, 110, 111, 112, 113, 120, 193, - /* 210 */ 216, 217, 25, 102, 103, 104, 105, 106, 107, 108, + /* 200 */ 106, 107, 108, 109, 110, 111, 112, 113, 120, 25, + /* 210 */ 216, 217, 145, 102, 103, 104, 105, 106, 107, 108, /* 220 */ 109, 110, 111, 112, 113, 231, 138, 139, 116, 117, - /* 230 */ 118, 106, 107, 19, 216, 54, 55, 56, 57, 102, + /* 230 */ 118, 164, 153, 19, 155, 54, 55, 56, 57, 102, /* 240 */ 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, - /* 250 */ 113, 304, 25, 46, 47, 48, 49, 43, 44, 45, + /* 250 */ 113, 128, 129, 46, 47, 48, 49, 43, 44, 45, /* 260 */ 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, - /* 270 */ 56, 57, 193, 106, 107, 59, 193, 19, 153, 263, - /* 280 */ 155, 67, 24, 102, 103, 104, 105, 106, 107, 108, - /* 290 */ 109, 110, 111, 112, 113, 216, 217, 59, 230, 216, + /* 270 */ 56, 57, 216, 193, 25, 59, 193, 19, 165, 166, + /* 280 */ 193, 67, 24, 102, 103, 104, 105, 106, 107, 108, + /* 290 */ 109, 110, 111, 112, 113, 73, 216, 217, 59, 216, /* 300 */ 217, 43, 44, 45, 46, 47, 48, 49, 50, 51, /* 310 */ 52, 53, 54, 55, 56, 57, 102, 103, 104, 105, - /* 320 */ 106, 107, 108, 109, 110, 111, 112, 113, 121, 142, - /* 330 */ 59, 193, 116, 117, 118, 119, 253, 204, 122, 123, - /* 340 */ 124, 19, 20, 81, 22, 262, 108, 19, 132, 165, - /* 350 */ 166, 193, 24, 126, 116, 117, 118, 278, 36, 193, + /* 320 */ 106, 107, 108, 109, 110, 111, 112, 113, 121, 145, + /* 330 */ 59, 193, 116, 117, 118, 119, 273, 204, 122, 123, + /* 340 */ 124, 19, 20, 134, 22, 136, 137, 19, 132, 127, + /* 350 */ 128, 129, 24, 22, 23, 116, 117, 118, 36, 193, /* 360 */ 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, - /* 370 */ 112, 113, 239, 240, 216, 217, 215, 106, 107, 241, + /* 370 */ 112, 113, 239, 240, 311, 312, 215, 106, 107, 241, /* 380 */ 19, 59, 216, 217, 223, 252, 115, 116, 117, 118, - /* 390 */ 73, 120, 26, 71, 193, 22, 193, 231, 81, 128, - /* 400 */ 138, 139, 269, 81, 43, 44, 45, 46, 47, 48, - /* 410 */ 49, 50, 51, 52, 53, 54, 55, 56, 57, 216, - /* 420 */ 217, 198, 100, 95, 153, 59, 155, 193, 106, 107, - /* 430 */ 235, 236, 59, 193, 193, 249, 114, 251, 116, 117, - /* 440 */ 118, 113, 304, 121, 127, 204, 193, 119, 120, 121, - /* 450 */ 122, 123, 124, 125, 193, 138, 139, 216, 217, 131, - /* 460 */ 138, 139, 193, 102, 103, 104, 105, 106, 107, 108, + /* 390 */ 151, 120, 26, 71, 193, 308, 309, 193, 149, 128, + /* 400 */ 313, 216, 269, 81, 43, 44, 45, 46, 47, 48, + /* 410 */ 49, 50, 51, 52, 53, 54, 55, 56, 57, 253, + /* 420 */ 216, 217, 100, 95, 153, 59, 155, 261, 106, 107, + /* 430 */ 25, 193, 101, 193, 193, 231, 114, 25, 116, 117, + /* 440 */ 118, 113, 304, 121, 193, 204, 59, 119, 120, 121, + /* 450 */ 122, 123, 124, 125, 216, 217, 193, 216, 217, 131, + /* 460 */ 138, 139, 230, 102, 103, 104, 105, 106, 107, 108, /* 470 */ 109, 110, 111, 112, 113, 153, 154, 155, 156, 157, - /* 480 */ 239, 240, 116, 117, 118, 76, 193, 193, 19, 116, - /* 490 */ 117, 118, 23, 252, 253, 193, 87, 204, 89, 238, - /* 500 */ 193, 92, 268, 262, 281, 203, 193, 205, 285, 216, + /* 480 */ 239, 240, 116, 117, 118, 76, 193, 23, 19, 25, + /* 490 */ 22, 253, 23, 252, 253, 108, 87, 204, 89, 261, + /* 500 */ 198, 92, 261, 116, 117, 118, 193, 306, 307, 216, /* 510 */ 217, 150, 43, 44, 45, 46, 47, 48, 49, 50, - /* 520 */ 51, 52, 53, 54, 55, 56, 57, 193, 193, 216, - /* 530 */ 217, 19, 239, 240, 59, 23, 106, 107, 108, 109, - /* 540 */ 110, 111, 112, 113, 231, 252, 253, 193, 308, 309, - /* 550 */ 193, 145, 59, 313, 145, 43, 44, 45, 46, 47, + /* 520 */ 51, 52, 53, 54, 55, 56, 57, 59, 193, 216, + /* 530 */ 217, 19, 239, 240, 283, 23, 106, 107, 108, 109, + /* 540 */ 110, 111, 112, 113, 73, 252, 253, 142, 308, 309, + /* 550 */ 138, 139, 81, 313, 145, 43, 44, 45, 46, 47, /* 560 */ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, - /* 570 */ 164, 102, 103, 104, 105, 106, 107, 108, 109, 110, - /* 580 */ 111, 112, 113, 119, 193, 193, 122, 123, 124, 193, - /* 590 */ 283, 116, 117, 118, 235, 236, 132, 59, 241, 264, - /* 600 */ 59, 193, 19, 23, 193, 25, 23, 216, 217, 116, - /* 610 */ 117, 118, 216, 217, 102, 103, 104, 105, 106, 107, + /* 570 */ 307, 102, 103, 104, 105, 106, 107, 108, 109, 110, + /* 580 */ 111, 112, 113, 281, 116, 117, 118, 285, 23, 193, + /* 590 */ 25, 119, 59, 193, 122, 123, 124, 59, 127, 203, + /* 600 */ 59, 205, 19, 268, 132, 25, 23, 22, 193, 138, + /* 610 */ 139, 249, 204, 251, 102, 103, 104, 105, 106, 107, /* 620 */ 108, 109, 110, 111, 112, 113, 43, 44, 45, 46, /* 630 */ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, - /* 640 */ 57, 19, 308, 309, 151, 23, 25, 313, 135, 253, - /* 650 */ 21, 193, 241, 140, 116, 117, 118, 116, 117, 118, - /* 660 */ 268, 304, 22, 301, 302, 43, 44, 45, 46, 47, + /* 640 */ 57, 19, 22, 23, 59, 23, 25, 239, 240, 116, + /* 650 */ 117, 118, 193, 11, 116, 117, 118, 116, 117, 118, + /* 660 */ 252, 269, 22, 193, 15, 43, 44, 45, 46, 47, /* 670 */ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, - /* 680 */ 193, 143, 193, 193, 143, 102, 103, 104, 105, 106, + /* 680 */ 273, 143, 193, 118, 143, 102, 103, 104, 105, 106, /* 690 */ 107, 108, 109, 110, 111, 112, 113, 76, 118, 59, - /* 700 */ 292, 211, 212, 216, 217, 216, 217, 73, 193, 80, - /* 710 */ 89, 25, 19, 92, 193, 304, 23, 22, 231, 193, - /* 720 */ 231, 193, 22, 143, 102, 103, 104, 105, 106, 107, + /* 700 */ 241, 116, 117, 118, 304, 216, 217, 292, 143, 60, + /* 710 */ 89, 241, 19, 92, 193, 193, 23, 22, 311, 312, + /* 720 */ 231, 101, 22, 143, 102, 103, 104, 105, 106, 107, /* 730 */ 108, 109, 110, 111, 112, 113, 43, 44, 45, 46, /* 740 */ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, - /* 750 */ 57, 19, 123, 193, 59, 23, 116, 117, 118, 59, - /* 760 */ 193, 127, 128, 129, 306, 307, 210, 211, 212, 193, - /* 770 */ 22, 111, 112, 113, 284, 43, 44, 45, 46, 47, + /* 750 */ 57, 19, 193, 193, 59, 23, 116, 117, 118, 59, + /* 760 */ 201, 21, 241, 304, 193, 206, 127, 128, 129, 193, + /* 770 */ 128, 129, 235, 236, 304, 43, 44, 45, 46, 47, /* 780 */ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, - /* 790 */ 161, 193, 216, 217, 268, 102, 103, 104, 105, 106, - /* 800 */ 107, 108, 109, 110, 111, 112, 113, 59, 193, 193, - /* 810 */ 193, 116, 117, 118, 216, 217, 116, 117, 118, 304, - /* 820 */ 239, 240, 19, 263, 138, 139, 23, 211, 212, 231, - /* 830 */ 263, 216, 217, 252, 102, 103, 104, 105, 106, 107, + /* 790 */ 22, 193, 216, 217, 193, 102, 103, 104, 105, 106, + /* 800 */ 107, 108, 109, 110, 111, 112, 113, 231, 193, 193, + /* 810 */ 193, 116, 117, 118, 216, 217, 116, 117, 118, 226, + /* 820 */ 80, 193, 19, 235, 236, 304, 23, 211, 212, 231, + /* 830 */ 204, 216, 217, 205, 102, 103, 104, 105, 106, 107, /* 840 */ 108, 109, 110, 111, 112, 113, 43, 44, 45, 46, /* 850 */ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, - /* 860 */ 57, 19, 193, 11, 116, 117, 118, 240, 253, 193, - /* 870 */ 201, 239, 240, 193, 134, 206, 136, 137, 193, 252, - /* 880 */ 193, 264, 193, 193, 252, 43, 44, 45, 46, 47, + /* 860 */ 57, 19, 193, 123, 76, 239, 240, 193, 253, 239, + /* 870 */ 240, 239, 240, 244, 106, 107, 193, 89, 252, 193, + /* 880 */ 92, 59, 252, 254, 252, 43, 44, 45, 46, 47, /* 890 */ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, - /* 900 */ 284, 216, 217, 216, 217, 102, 103, 104, 105, 106, - /* 910 */ 107, 108, 109, 110, 111, 112, 113, 193, 231, 193, - /* 920 */ 187, 188, 189, 190, 127, 128, 129, 238, 195, 193, - /* 930 */ 197, 16, 19, 7, 8, 9, 193, 204, 253, 193, - /* 940 */ 216, 217, 216, 217, 102, 103, 104, 105, 106, 107, + /* 900 */ 284, 161, 216, 217, 193, 102, 103, 104, 105, 106, + /* 910 */ 107, 108, 109, 110, 111, 112, 113, 231, 193, 244, + /* 920 */ 187, 188, 189, 190, 7, 8, 9, 309, 195, 254, + /* 930 */ 197, 313, 19, 127, 128, 129, 262, 204, 22, 117, + /* 940 */ 24, 216, 217, 273, 102, 103, 104, 105, 106, 107, /* 950 */ 108, 109, 110, 111, 112, 113, 43, 44, 45, 46, /* 960 */ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, - /* 970 */ 57, 213, 239, 240, 193, 76, 19, 188, 232, 190, - /* 980 */ 128, 129, 292, 193, 195, 252, 197, 46, 89, 138, - /* 990 */ 139, 92, 77, 204, 79, 193, 269, 216, 217, 266, + /* 970 */ 57, 193, 239, 240, 193, 59, 19, 188, 253, 190, + /* 980 */ 193, 311, 312, 16, 195, 252, 197, 193, 19, 301, + /* 990 */ 302, 135, 193, 204, 216, 217, 140, 216, 217, 266, /* 1000 */ 204, 159, 45, 46, 47, 48, 49, 50, 51, 52, /* 1010 */ 53, 54, 55, 56, 57, 102, 103, 104, 105, 106, /* 1020 */ 107, 108, 109, 110, 111, 112, 113, 12, 239, 240, - /* 1030 */ 193, 298, 22, 23, 253, 239, 240, 127, 128, 129, - /* 1040 */ 238, 252, 27, 193, 286, 204, 193, 204, 252, 291, - /* 1050 */ 193, 273, 22, 23, 100, 266, 115, 42, 268, 102, + /* 1030 */ 193, 298, 238, 117, 253, 239, 240, 238, 259, 260, + /* 1040 */ 193, 252, 27, 193, 77, 193, 79, 204, 252, 262, + /* 1050 */ 193, 299, 300, 193, 100, 266, 278, 42, 204, 102, /* 1060 */ 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, - /* 1070 */ 113, 117, 159, 216, 217, 121, 161, 19, 63, 193, - /* 1080 */ 239, 240, 239, 240, 12, 208, 209, 298, 73, 311, - /* 1090 */ 312, 238, 19, 252, 25, 252, 22, 24, 24, 27, - /* 1100 */ 193, 264, 216, 217, 46, 208, 209, 153, 154, 155, - /* 1110 */ 253, 101, 19, 23, 42, 25, 43, 44, 45, 46, + /* 1070 */ 113, 117, 159, 216, 217, 121, 216, 217, 63, 193, + /* 1080 */ 193, 193, 239, 240, 115, 116, 193, 298, 73, 240, + /* 1090 */ 238, 231, 19, 239, 240, 252, 22, 24, 211, 212, + /* 1100 */ 263, 252, 216, 217, 216, 217, 252, 153, 154, 155, + /* 1110 */ 253, 193, 19, 144, 213, 268, 43, 44, 45, 46, /* 1120 */ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, - /* 1130 */ 57, 101, 19, 59, 25, 63, 43, 44, 45, 46, + /* 1130 */ 57, 193, 19, 59, 216, 217, 43, 44, 45, 46, /* 1140 */ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, - /* 1150 */ 57, 22, 23, 115, 25, 24, 43, 44, 45, 46, + /* 1150 */ 57, 193, 19, 24, 216, 217, 43, 44, 45, 46, /* 1160 */ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, - /* 1170 */ 57, 22, 23, 115, 25, 102, 103, 104, 105, 106, - /* 1180 */ 107, 108, 109, 110, 111, 112, 113, 118, 150, 131, - /* 1190 */ 59, 117, 22, 273, 193, 102, 103, 104, 105, 106, - /* 1200 */ 107, 108, 109, 110, 111, 112, 113, 204, 66, 204, - /* 1210 */ 35, 204, 143, 213, 193, 102, 103, 104, 105, 106, - /* 1220 */ 107, 108, 109, 110, 111, 112, 113, 85, 193, 59, - /* 1230 */ 101, 311, 312, 16, 193, 19, 94, 216, 217, 238, - /* 1240 */ 193, 66, 239, 240, 239, 240, 239, 240, 117, 74, - /* 1250 */ 101, 216, 217, 193, 193, 252, 193, 252, 149, 252, + /* 1170 */ 57, 284, 193, 208, 209, 102, 103, 104, 105, 106, + /* 1180 */ 107, 108, 109, 110, 111, 112, 113, 286, 59, 193, + /* 1190 */ 232, 117, 291, 193, 193, 102, 103, 104, 105, 106, + /* 1200 */ 107, 108, 109, 110, 111, 112, 113, 193, 204, 22, + /* 1210 */ 23, 193, 25, 66, 193, 102, 103, 104, 105, 106, + /* 1220 */ 107, 108, 109, 110, 111, 112, 113, 193, 193, 193, + /* 1230 */ 216, 217, 85, 193, 238, 19, 16, 216, 217, 238, + /* 1240 */ 193, 94, 193, 239, 240, 231, 117, 268, 35, 116, + /* 1250 */ 216, 217, 216, 217, 22, 23, 252, 25, 208, 209, /* 1260 */ 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, - /* 1270 */ 54, 55, 56, 57, 193, 193, 193, 5, 59, 216, - /* 1280 */ 217, 25, 10, 11, 12, 13, 14, 117, 146, 17, - /* 1290 */ 193, 291, 193, 232, 77, 76, 79, 216, 217, 216, - /* 1300 */ 217, 31, 30, 309, 32, 130, 87, 313, 89, 39, - /* 1310 */ 193, 92, 40, 216, 217, 216, 217, 108, 102, 103, + /* 1270 */ 54, 55, 56, 57, 193, 193, 19, 5, 59, 66, + /* 1280 */ 193, 263, 10, 11, 12, 13, 14, 74, 101, 17, + /* 1290 */ 193, 46, 193, 146, 193, 76, 213, 77, 263, 79, + /* 1300 */ 12, 260, 30, 46, 32, 264, 87, 193, 89, 29, + /* 1310 */ 263, 92, 40, 33, 232, 27, 193, 108, 102, 103, /* 1320 */ 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, - /* 1330 */ 299, 300, 193, 216, 217, 116, 117, 118, 19, 20, - /* 1340 */ 193, 22, 70, 309, 135, 193, 264, 313, 193, 140, - /* 1350 */ 78, 193, 226, 81, 59, 36, 193, 309, 193, 29, - /* 1360 */ 193, 313, 193, 33, 145, 193, 59, 48, 216, 217, - /* 1370 */ 98, 216, 217, 193, 216, 217, 193, 244, 59, 216, - /* 1380 */ 217, 216, 217, 216, 217, 216, 217, 254, 216, 217, - /* 1390 */ 71, 193, 244, 193, 193, 65, 216, 217, 193, 216, - /* 1400 */ 217, 145, 254, 244, 85, 133, 15, 100, 193, 90, - /* 1410 */ 138, 139, 117, 254, 216, 217, 216, 217, 193, 100, - /* 1420 */ 193, 216, 217, 116, 117, 106, 107, 19, 121, 193, - /* 1430 */ 193, 216, 217, 114, 162, 116, 117, 118, 244, 244, - /* 1440 */ 121, 216, 217, 216, 217, 193, 309, 129, 254, 254, - /* 1450 */ 313, 60, 216, 217, 19, 256, 257, 193, 120, 121, - /* 1460 */ 153, 154, 155, 149, 150, 25, 24, 99, 216, 217, - /* 1470 */ 152, 193, 153, 154, 155, 156, 157, 0, 1, 2, - /* 1480 */ 216, 217, 5, 22, 158, 24, 160, 10, 11, 12, - /* 1490 */ 13, 14, 193, 23, 17, 25, 193, 19, 20, 193, - /* 1500 */ 22, 133, 193, 22, 22, 193, 22, 30, 193, 32, - /* 1510 */ 19, 20, 129, 22, 36, 216, 217, 40, 193, 216, - /* 1520 */ 217, 193, 216, 217, 116, 216, 217, 36, 216, 217, - /* 1530 */ 193, 216, 217, 193, 53, 152, 193, 59, 23, 19, - /* 1540 */ 25, 216, 217, 61, 216, 217, 23, 70, 25, 71, - /* 1550 */ 59, 116, 193, 216, 217, 78, 216, 217, 81, 216, - /* 1560 */ 217, 59, 71, 85, 193, 23, 193, 25, 90, 23, - /* 1570 */ 23, 25, 25, 7, 8, 98, 85, 193, 100, 193, - /* 1580 */ 59, 90, 142, 141, 106, 107, 193, 216, 217, 216, - /* 1590 */ 217, 100, 114, 193, 116, 117, 118, 106, 107, 121, + /* 1330 */ 42, 138, 139, 101, 193, 116, 117, 118, 19, 20, + /* 1340 */ 255, 22, 70, 130, 135, 65, 256, 257, 193, 140, + /* 1350 */ 78, 63, 193, 81, 193, 36, 193, 216, 217, 193, + /* 1360 */ 115, 193, 263, 193, 145, 268, 59, 48, 193, 193, + /* 1370 */ 98, 193, 115, 193, 291, 216, 217, 193, 59, 216, + /* 1380 */ 217, 161, 216, 217, 216, 217, 216, 217, 131, 193, + /* 1390 */ 71, 193, 216, 217, 216, 217, 216, 217, 193, 260, + /* 1400 */ 216, 217, 19, 264, 85, 133, 244, 100, 193, 90, + /* 1410 */ 138, 139, 216, 217, 216, 217, 254, 244, 193, 100, + /* 1420 */ 193, 216, 217, 116, 117, 106, 107, 254, 121, 193, + /* 1430 */ 115, 216, 217, 114, 162, 116, 117, 118, 115, 244, + /* 1440 */ 121, 216, 217, 216, 217, 193, 309, 193, 31, 254, + /* 1450 */ 313, 309, 216, 217, 309, 313, 39, 193, 313, 309, + /* 1460 */ 153, 154, 155, 313, 193, 150, 25, 144, 216, 217, + /* 1470 */ 216, 217, 153, 154, 155, 156, 157, 0, 1, 2, + /* 1480 */ 216, 217, 5, 149, 150, 22, 193, 10, 11, 12, + /* 1490 */ 13, 14, 193, 158, 17, 160, 193, 19, 20, 116, + /* 1500 */ 22, 25, 193, 24, 22, 193, 24, 30, 226, 32, + /* 1510 */ 19, 20, 226, 22, 36, 193, 53, 40, 193, 216, + /* 1520 */ 217, 193, 23, 193, 25, 216, 217, 36, 216, 217, + /* 1530 */ 193, 99, 193, 193, 22, 193, 193, 59, 216, 217, + /* 1540 */ 193, 216, 217, 193, 216, 217, 193, 70, 129, 71, + /* 1550 */ 59, 129, 193, 216, 217, 78, 216, 217, 81, 216, + /* 1560 */ 217, 193, 71, 85, 193, 133, 193, 126, 90, 216, + /* 1570 */ 217, 152, 258, 61, 152, 98, 85, 193, 100, 193, + /* 1580 */ 23, 90, 25, 121, 106, 107, 23, 216, 217, 216, + /* 1590 */ 217, 100, 114, 131, 116, 117, 118, 106, 107, 121, /* 1600 */ 216, 217, 216, 217, 193, 114, 193, 116, 117, 118, - /* 1610 */ 133, 23, 121, 25, 121, 138, 139, 97, 23, 117, - /* 1620 */ 25, 23, 193, 25, 131, 141, 193, 216, 217, 59, - /* 1630 */ 193, 153, 154, 155, 156, 157, 226, 193, 117, 162, - /* 1640 */ 23, 23, 25, 25, 153, 154, 155, 156, 157, 1, - /* 1650 */ 2, 83, 84, 5, 19, 20, 226, 22, 10, 11, - /* 1660 */ 12, 13, 14, 258, 153, 17, 155, 153, 23, 155, - /* 1670 */ 25, 36, 23, 193, 25, 255, 193, 236, 30, 193, - /* 1680 */ 32, 19, 20, 193, 22, 193, 288, 117, 40, 193, - /* 1690 */ 318, 193, 193, 193, 59, 242, 193, 193, 36, 193, - /* 1700 */ 193, 193, 287, 255, 255, 255, 71, 255, 243, 214, - /* 1710 */ 191, 297, 267, 245, 271, 259, 259, 293, 70, 246, - /* 1720 */ 246, 59, 267, 229, 245, 271, 78, 293, 259, 81, - /* 1730 */ 271, 271, 220, 71, 225, 100, 219, 219, 249, 196, - /* 1740 */ 243, 106, 107, 108, 219, 60, 98, 280, 297, 114, - /* 1750 */ 249, 116, 117, 118, 141, 245, 121, 200, 200, 297, - /* 1760 */ 38, 200, 100, 151, 150, 294, 294, 22, 106, 107, - /* 1770 */ 283, 43, 234, 18, 237, 200, 114, 272, 116, 117, - /* 1780 */ 118, 133, 237, 121, 18, 237, 138, 139, 153, 154, - /* 1790 */ 155, 156, 157, 237, 270, 199, 19, 20, 246, 22, - /* 1800 */ 149, 272, 272, 270, 200, 246, 234, 234, 246, 246, - /* 1810 */ 162, 158, 290, 36, 199, 153, 154, 155, 156, 157, - /* 1820 */ 62, 289, 200, 199, 22, 200, 221, 199, 221, 200, - /* 1830 */ 199, 115, 64, 227, 218, 22, 59, 218, 218, 126, - /* 1840 */ 165, 24, 113, 312, 218, 224, 305, 224, 71, 282, - /* 1850 */ 144, 221, 220, 282, 218, 218, 218, 115, 261, 260, - /* 1860 */ 227, 221, 261, 260, 200, 91, 317, 317, 82, 261, - /* 1870 */ 260, 148, 261, 22, 265, 145, 200, 100, 158, 277, - /* 1880 */ 147, 146, 25, 106, 107, 202, 13, 260, 194, 250, - /* 1890 */ 249, 114, 248, 116, 117, 118, 250, 247, 121, 265, - /* 1900 */ 246, 194, 6, 192, 192, 207, 192, 207, 213, 213, - /* 1910 */ 213, 222, 213, 222, 4, 214, 214, 213, 3, 22, - /* 1920 */ 163, 279, 207, 15, 23, 16, 23, 139, 130, 151, - /* 1930 */ 153, 154, 155, 156, 157, 142, 25, 24, 20, 144, - /* 1940 */ 16, 1, 142, 61, 130, 130, 303, 151, 53, 37, - /* 1950 */ 303, 53, 300, 53, 130, 53, 116, 34, 1, 141, - /* 1960 */ 5, 22, 115, 25, 161, 75, 41, 68, 141, 115, - /* 1970 */ 24, 20, 68, 19, 131, 125, 23, 96, 22, 59, - /* 1980 */ 22, 67, 22, 22, 67, 22, 24, 28, 67, 37, - /* 1990 */ 23, 149, 22, 25, 23, 23, 23, 23, 22, 141, - /* 2000 */ 23, 23, 97, 116, 22, 143, 25, 88, 75, 34, - /* 2010 */ 44, 75, 86, 34, 34, 93, 23, 34, 34, 34, - /* 2020 */ 22, 24, 34, 22, 25, 25, 23, 23, 23, 23, - /* 2030 */ 23, 11, 23, 25, 22, 22, 25, 23, 23, 22, - /* 2040 */ 22, 135, 15, 1, 25, 23, 1, 319, 141, 319, - /* 2050 */ 319, 319, 319, 319, 319, 319, 319, 141, 319, 319, - /* 2060 */ 319, 319, 319, 319, 319, 319, 319, 319, 141, 141, - /* 2070 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, - /* 2080 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, - /* 2090 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, + /* 1610 */ 133, 22, 121, 193, 59, 138, 139, 193, 142, 193, + /* 1620 */ 141, 23, 23, 25, 25, 120, 121, 216, 217, 216, + /* 1630 */ 217, 153, 154, 155, 156, 157, 216, 217, 19, 162, + /* 1640 */ 216, 217, 216, 217, 153, 154, 155, 156, 157, 1, + /* 1650 */ 2, 193, 59, 5, 19, 20, 318, 22, 10, 11, + /* 1660 */ 12, 13, 14, 193, 59, 17, 193, 23, 23, 25, + /* 1670 */ 25, 36, 117, 193, 216, 217, 193, 23, 30, 25, + /* 1680 */ 32, 19, 20, 23, 22, 25, 216, 217, 40, 216, + /* 1690 */ 217, 7, 8, 23, 59, 25, 83, 84, 36, 23, + /* 1700 */ 193, 25, 23, 23, 25, 25, 71, 153, 145, 155, + /* 1710 */ 117, 153, 23, 155, 25, 23, 97, 25, 70, 193, + /* 1720 */ 193, 59, 117, 236, 193, 193, 78, 193, 193, 81, + /* 1730 */ 141, 193, 193, 71, 193, 100, 288, 287, 242, 255, + /* 1740 */ 255, 106, 107, 108, 255, 255, 98, 243, 297, 114, + /* 1750 */ 214, 116, 117, 118, 245, 191, 121, 271, 293, 267, + /* 1760 */ 267, 246, 100, 246, 245, 271, 271, 293, 106, 107, + /* 1770 */ 220, 271, 229, 225, 249, 219, 114, 259, 116, 117, + /* 1780 */ 118, 133, 259, 121, 219, 219, 138, 139, 153, 154, + /* 1790 */ 155, 156, 157, 280, 249, 243, 19, 20, 245, 22, + /* 1800 */ 196, 259, 140, 259, 60, 297, 141, 297, 200, 200, + /* 1810 */ 162, 38, 200, 36, 294, 153, 154, 155, 156, 157, + /* 1820 */ 151, 150, 294, 283, 22, 43, 234, 18, 237, 200, + /* 1830 */ 270, 272, 237, 237, 237, 18, 59, 199, 270, 149, + /* 1840 */ 246, 272, 272, 200, 234, 234, 246, 246, 71, 246, + /* 1850 */ 199, 158, 290, 62, 22, 200, 19, 20, 199, 22, + /* 1860 */ 289, 221, 221, 200, 200, 199, 199, 115, 218, 64, + /* 1870 */ 218, 218, 22, 36, 227, 126, 227, 100, 165, 221, + /* 1880 */ 224, 224, 24, 106, 107, 312, 218, 305, 113, 282, + /* 1890 */ 91, 114, 220, 116, 117, 118, 59, 282, 121, 218, + /* 1900 */ 218, 218, 200, 317, 317, 82, 221, 265, 71, 148, + /* 1910 */ 145, 265, 22, 277, 200, 158, 279, 140, 147, 25, + /* 1920 */ 146, 202, 248, 250, 249, 247, 13, 250, 194, 194, + /* 1930 */ 153, 154, 155, 156, 157, 6, 303, 100, 192, 192, + /* 1940 */ 246, 213, 192, 106, 107, 207, 213, 207, 222, 213, + /* 1950 */ 213, 114, 222, 116, 117, 118, 214, 214, 121, 4, + /* 1960 */ 207, 213, 3, 22, 303, 15, 163, 16, 23, 23, + /* 1970 */ 139, 151, 130, 25, 20, 142, 24, 16, 144, 1, + /* 1980 */ 142, 130, 130, 61, 37, 53, 300, 151, 53, 53, + /* 1990 */ 153, 154, 155, 156, 157, 53, 130, 116, 34, 1, + /* 2000 */ 141, 5, 22, 115, 161, 68, 25, 68, 75, 41, + /* 2010 */ 141, 115, 24, 20, 19, 131, 125, 23, 28, 22, + /* 2020 */ 67, 22, 22, 22, 67, 59, 24, 96, 22, 67, + /* 2030 */ 23, 149, 22, 25, 23, 23, 23, 22, 34, 141, + /* 2040 */ 37, 97, 23, 23, 116, 22, 143, 25, 34, 75, + /* 2050 */ 34, 34, 34, 88, 75, 34, 86, 23, 22, 34, + /* 2060 */ 93, 24, 34, 25, 25, 142, 142, 23, 44, 23, + /* 2070 */ 23, 23, 23, 11, 23, 25, 22, 22, 22, 141, + /* 2080 */ 23, 23, 22, 22, 25, 15, 1, 23, 25, 1, + /* 2090 */ 141, 135, 319, 319, 319, 319, 319, 319, 319, 141, /* 2100 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, /* 2110 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, /* 2120 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, @@ -162426,176 +171935,180 @@ static const YYCODETYPE yy_lookahead[] = { /* 2220 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, /* 2230 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, /* 2240 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, - /* 2250 */ 319, 319, 319, 319, 319, + /* 2250 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, + /* 2260 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, + /* 2270 */ 319, 319, 319, 319, 319, 319, 319, 319, 319, 319, + /* 2280 */ 319, 319, 319, 319, 319, }; -#define YY_SHIFT_COUNT (573) +#define YY_SHIFT_COUNT (578) #define YY_SHIFT_MIN (0) -#define YY_SHIFT_MAX (2045) +#define YY_SHIFT_MAX (2088) static const unsigned short int yy_shift_ofst[] = { - /* 0 */ 1648, 1477, 1272, 322, 322, 262, 1319, 1478, 1491, 1662, - /* 10 */ 1662, 1662, 317, 0, 0, 214, 1093, 1662, 1662, 1662, - /* 20 */ 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, - /* 30 */ 271, 271, 1219, 1219, 216, 88, 262, 262, 262, 262, - /* 40 */ 262, 40, 111, 258, 361, 469, 512, 583, 622, 693, - /* 50 */ 732, 803, 842, 913, 1073, 1093, 1093, 1093, 1093, 1093, + /* 0 */ 1648, 1477, 1272, 322, 322, 1, 1319, 1478, 1491, 1837, + /* 10 */ 1837, 1837, 471, 0, 0, 214, 1093, 1837, 1837, 1837, + /* 20 */ 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, + /* 30 */ 1837, 271, 271, 1219, 1219, 216, 88, 1, 1, 1, + /* 40 */ 1, 1, 40, 111, 258, 361, 469, 512, 583, 622, + /* 50 */ 693, 732, 803, 842, 913, 1073, 1093, 1093, 1093, 1093, /* 60 */ 1093, 1093, 1093, 1093, 1093, 1093, 1093, 1093, 1093, 1093, - /* 70 */ 1093, 1093, 1093, 1113, 1093, 1216, 957, 957, 1635, 1662, - /* 80 */ 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, - /* 90 */ 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, - /* 100 */ 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, - /* 110 */ 1662, 1662, 1662, 1662, 1777, 1662, 1662, 1662, 1662, 1662, - /* 120 */ 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, 137, 181, - /* 130 */ 181, 181, 181, 181, 94, 430, 66, 65, 112, 366, - /* 140 */ 475, 475, 629, 1058, 475, 475, 125, 125, 475, 686, - /* 150 */ 686, 686, 660, 686, 57, 184, 184, 77, 77, 2070, - /* 160 */ 2070, 328, 328, 328, 493, 373, 373, 373, 373, 1015, - /* 170 */ 1015, 409, 366, 1129, 1149, 475, 475, 475, 475, 475, - /* 180 */ 475, 475, 475, 475, 475, 475, 475, 475, 475, 475, - /* 190 */ 475, 475, 475, 475, 475, 621, 621, 475, 852, 899, - /* 200 */ 899, 1295, 1295, 406, 851, 2070, 2070, 2070, 2070, 2070, - /* 210 */ 2070, 2070, 1307, 954, 954, 640, 464, 695, 238, 700, - /* 220 */ 538, 541, 748, 475, 475, 475, 475, 475, 475, 475, - /* 230 */ 475, 475, 475, 634, 475, 475, 475, 475, 475, 475, - /* 240 */ 475, 475, 475, 475, 475, 475, 1175, 1175, 1175, 475, - /* 250 */ 475, 475, 580, 475, 475, 475, 1074, 1142, 475, 475, - /* 260 */ 1072, 475, 475, 475, 475, 475, 475, 475, 475, 797, - /* 270 */ 1330, 740, 1131, 1131, 1131, 1131, 1069, 740, 740, 1209, - /* 280 */ 167, 926, 1391, 1038, 1314, 187, 1408, 1314, 1408, 1435, - /* 290 */ 1109, 1038, 1038, 1109, 1038, 187, 1435, 227, 1090, 941, - /* 300 */ 1270, 1270, 1270, 1408, 1256, 1256, 1326, 1440, 513, 1461, - /* 310 */ 1685, 1685, 1613, 1613, 1722, 1722, 1613, 1612, 1614, 1745, - /* 320 */ 1728, 1755, 1755, 1755, 1755, 1613, 1766, 1651, 1614, 1614, - /* 330 */ 1651, 1745, 1728, 1651, 1728, 1651, 1613, 1766, 1653, 1758, - /* 340 */ 1613, 1766, 1802, 1613, 1766, 1613, 1766, 1802, 1716, 1716, - /* 350 */ 1716, 1768, 1813, 1813, 1802, 1716, 1713, 1716, 1768, 1716, - /* 360 */ 1716, 1675, 1817, 1729, 1729, 1802, 1706, 1742, 1706, 1742, - /* 370 */ 1706, 1742, 1706, 1742, 1613, 1774, 1774, 1786, 1786, 1723, - /* 380 */ 1730, 1851, 1613, 1720, 1723, 1733, 1735, 1651, 1857, 1873, - /* 390 */ 1873, 1896, 1896, 1896, 2070, 2070, 2070, 2070, 2070, 2070, - /* 400 */ 2070, 2070, 2070, 2070, 2070, 2070, 2070, 2070, 2070, 207, - /* 410 */ 915, 1010, 1030, 1217, 910, 1170, 1470, 1368, 1481, 1442, - /* 420 */ 1318, 1383, 1515, 1482, 1523, 1542, 1546, 1547, 1588, 1595, - /* 430 */ 1502, 1338, 1566, 1493, 1520, 1521, 1598, 1617, 1568, 1618, - /* 440 */ 1511, 1514, 1645, 1649, 1570, 1484, 1910, 1915, 1897, 1757, - /* 450 */ 1908, 1909, 1901, 1903, 1788, 1778, 1798, 1911, 1911, 1913, - /* 460 */ 1793, 1918, 1795, 1924, 1940, 1800, 1814, 1911, 1815, 1882, - /* 470 */ 1912, 1911, 1796, 1895, 1898, 1900, 1902, 1824, 1840, 1923, - /* 480 */ 1818, 1957, 1955, 1939, 1847, 1803, 1899, 1938, 1904, 1890, - /* 490 */ 1925, 1827, 1854, 1946, 1951, 1954, 1843, 1850, 1956, 1914, - /* 500 */ 1958, 1960, 1953, 1961, 1917, 1920, 1962, 1881, 1959, 1963, - /* 510 */ 1921, 1952, 1967, 1842, 1970, 1971, 1972, 1973, 1968, 1974, - /* 520 */ 1976, 1905, 1858, 1977, 1978, 1887, 1975, 1982, 1862, 1981, - /* 530 */ 1979, 1980, 1983, 1984, 1919, 1933, 1926, 1966, 1936, 1922, - /* 540 */ 1985, 1993, 1998, 1997, 1999, 2000, 1988, 2003, 1981, 2004, - /* 550 */ 2005, 2006, 2007, 2008, 2009, 2001, 2020, 2012, 2013, 2014, - /* 560 */ 2015, 2017, 2018, 2011, 1906, 1907, 1916, 1927, 1928, 2019, - /* 570 */ 2022, 2027, 2042, 2045, + /* 70 */ 1093, 1093, 1093, 1093, 1113, 1093, 1216, 957, 957, 1635, + /* 80 */ 1662, 1777, 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, + /* 90 */ 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, + /* 100 */ 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, + /* 110 */ 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, + /* 120 */ 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, 1837, + /* 130 */ 1837, 137, 181, 181, 181, 181, 181, 181, 181, 94, + /* 140 */ 430, 66, 65, 112, 366, 533, 533, 740, 1257, 533, + /* 150 */ 533, 79, 79, 533, 412, 412, 412, 77, 412, 123, + /* 160 */ 113, 113, 113, 22, 22, 2100, 2100, 328, 328, 328, + /* 170 */ 239, 468, 468, 468, 468, 1015, 1015, 409, 366, 1187, + /* 180 */ 1232, 533, 533, 533, 533, 533, 533, 533, 533, 533, + /* 190 */ 533, 533, 533, 533, 533, 533, 533, 533, 533, 533, + /* 200 */ 533, 969, 621, 621, 533, 642, 788, 788, 1133, 1133, + /* 210 */ 822, 822, 67, 1193, 2100, 2100, 2100, 2100, 2100, 2100, + /* 220 */ 2100, 1307, 954, 954, 585, 472, 640, 387, 695, 538, + /* 230 */ 541, 700, 533, 533, 533, 533, 533, 533, 533, 533, + /* 240 */ 533, 533, 222, 533, 533, 533, 533, 533, 533, 533, + /* 250 */ 533, 533, 533, 533, 533, 1213, 1213, 1213, 533, 533, + /* 260 */ 533, 565, 533, 533, 533, 916, 1147, 533, 533, 1288, + /* 270 */ 533, 533, 533, 533, 533, 533, 533, 533, 639, 1280, + /* 280 */ 209, 1129, 1129, 1129, 1129, 580, 209, 209, 1209, 768, + /* 290 */ 917, 649, 1315, 1334, 405, 1334, 1383, 249, 1315, 1315, + /* 300 */ 249, 1315, 405, 1383, 1441, 464, 1245, 1417, 1417, 1417, + /* 310 */ 1323, 1323, 1323, 1323, 184, 184, 1335, 1476, 856, 1482, + /* 320 */ 1744, 1744, 1665, 1665, 1773, 1773, 1665, 1669, 1671, 1802, + /* 330 */ 1782, 1809, 1809, 1809, 1809, 1665, 1817, 1690, 1671, 1671, + /* 340 */ 1690, 1802, 1782, 1690, 1782, 1690, 1665, 1817, 1693, 1791, + /* 350 */ 1665, 1817, 1832, 1665, 1817, 1665, 1817, 1832, 1752, 1752, + /* 360 */ 1752, 1805, 1850, 1850, 1832, 1752, 1749, 1752, 1805, 1752, + /* 370 */ 1752, 1713, 1858, 1775, 1775, 1832, 1665, 1799, 1799, 1823, + /* 380 */ 1823, 1761, 1765, 1890, 1665, 1757, 1761, 1771, 1774, 1690, + /* 390 */ 1894, 1913, 1913, 1929, 1929, 1929, 2100, 2100, 2100, 2100, + /* 400 */ 2100, 2100, 2100, 2100, 2100, 2100, 2100, 2100, 2100, 2100, + /* 410 */ 2100, 207, 1220, 331, 620, 967, 806, 1074, 1499, 1432, + /* 420 */ 1463, 1479, 1419, 1422, 1557, 1512, 1598, 1599, 1644, 1645, + /* 430 */ 1654, 1660, 1555, 1505, 1684, 1462, 1670, 1563, 1619, 1593, + /* 440 */ 1676, 1679, 1613, 1680, 1554, 1558, 1689, 1692, 1605, 1589, + /* 450 */ 1955, 1959, 1941, 1803, 1950, 1951, 1945, 1946, 1831, 1820, + /* 460 */ 1842, 1948, 1948, 1952, 1833, 1954, 1834, 1961, 1978, 1838, + /* 470 */ 1851, 1948, 1852, 1922, 1947, 1948, 1836, 1932, 1935, 1936, + /* 480 */ 1942, 1866, 1881, 1964, 1859, 1998, 1996, 1980, 1888, 1843, + /* 490 */ 1937, 1981, 1939, 1933, 1968, 1869, 1896, 1988, 1993, 1995, + /* 500 */ 1884, 1891, 1997, 1953, 1999, 2000, 1994, 2001, 1957, 1966, + /* 510 */ 2002, 1931, 1990, 2006, 1962, 2003, 2007, 2004, 1882, 2010, + /* 520 */ 2011, 2012, 2008, 2013, 2015, 1944, 1898, 2019, 2020, 1928, + /* 530 */ 2014, 2023, 1903, 2022, 2016, 2017, 2018, 2021, 1965, 1974, + /* 540 */ 1970, 2024, 1979, 1967, 2025, 2034, 2036, 2037, 2038, 2039, + /* 550 */ 2028, 1923, 1924, 2044, 2022, 2046, 2047, 2048, 2049, 2050, + /* 560 */ 2051, 2054, 2062, 2055, 2056, 2057, 2058, 2060, 2061, 2059, + /* 570 */ 1956, 1938, 1949, 1958, 2063, 2064, 2070, 2085, 2088, }; -#define YY_REDUCE_COUNT (408) -#define YY_REDUCE_MIN (-267) -#define YY_REDUCE_MAX (1715) +#define YY_REDUCE_COUNT (410) +#define YY_REDUCE_MIN (-271) +#define YY_REDUCE_MAX (1753) static const short yy_reduce_ofst[] = { /* 0 */ -125, 733, 789, 241, 293, -123, -193, -191, -183, -187, - /* 10 */ -180, 83, 133, -207, -198, -267, -175, -6, 166, 313, - /* 20 */ 487, 396, 489, 598, 615, 685, 687, 79, 781, 857, - /* 30 */ 490, 616, 240, 334, -188, 796, 841, 843, 1003, 1005, - /* 40 */ 1007, -260, -260, -260, -260, -260, -260, -260, -260, -260, - /* 50 */ -260, -260, -260, -260, -260, -260, -260, -260, -260, -260, - /* 60 */ -260, -260, -260, -260, -260, -260, -260, -260, -260, -260, - /* 70 */ -260, -260, -260, -260, -260, -260, -260, -260, 158, 203, - /* 80 */ 391, 576, 724, 726, 886, 1021, 1035, 1063, 1081, 1083, - /* 90 */ 1097, 1099, 1117, 1152, 1155, 1158, 1163, 1165, 1167, 1169, - /* 100 */ 1172, 1180, 1183, 1198, 1200, 1205, 1215, 1225, 1227, 1236, - /* 110 */ 1252, 1264, 1299, 1303, 1306, 1309, 1312, 1315, 1325, 1328, - /* 120 */ 1337, 1340, 1343, 1371, 1373, 1384, 1386, 1411, -260, -260, - /* 130 */ -260, -260, -260, -260, -260, -260, -260, -53, 138, 302, - /* 140 */ -158, 357, 223, -222, 411, 458, -92, 556, 669, 581, - /* 150 */ 632, 581, -260, 632, 758, 778, 920, -260, -260, -260, - /* 160 */ -260, 161, 161, 161, 307, 234, 392, 526, 790, 195, - /* 170 */ 359, -174, -173, 362, 362, -189, 16, 560, 567, 261, - /* 180 */ 689, 802, 853, -122, -166, 408, 335, 617, 690, 837, - /* 190 */ 1001, 746, 1061, 515, 1082, 994, 1034, -135, 1000, 1048, - /* 200 */ 1137, 877, 897, 186, 627, 1031, 1133, 1148, 1159, 1194, - /* 210 */ 1199, 1195, -194, -142, 18, -152, 68, 201, 253, 269, - /* 220 */ 294, 354, 521, 528, 676, 680, 736, 743, 850, 907, - /* 230 */ 1041, 1047, 1060, 727, 1139, 1147, 1201, 1237, 1278, 1359, - /* 240 */ 1393, 1400, 1413, 1429, 1433, 1437, 1126, 1410, 1430, 1444, - /* 250 */ 1480, 1483, 1405, 1486, 1490, 1492, 1420, 1372, 1496, 1498, - /* 260 */ 1441, 1499, 253, 1500, 1503, 1504, 1506, 1507, 1508, 1398, - /* 270 */ 1415, 1453, 1448, 1449, 1450, 1452, 1405, 1453, 1453, 1465, - /* 280 */ 1495, 1519, 1414, 1443, 1445, 1468, 1456, 1455, 1457, 1424, - /* 290 */ 1473, 1454, 1459, 1474, 1460, 1479, 1434, 1512, 1494, 1509, - /* 300 */ 1517, 1518, 1525, 1469, 1489, 1501, 1467, 1510, 1497, 1543, - /* 310 */ 1451, 1462, 1557, 1558, 1471, 1472, 1561, 1487, 1505, 1524, - /* 320 */ 1538, 1537, 1545, 1548, 1556, 1575, 1596, 1552, 1529, 1530, - /* 330 */ 1559, 1533, 1572, 1562, 1573, 1563, 1604, 1615, 1522, 1532, - /* 340 */ 1622, 1624, 1605, 1625, 1628, 1629, 1631, 1607, 1616, 1619, - /* 350 */ 1620, 1606, 1621, 1623, 1630, 1626, 1632, 1636, 1633, 1637, - /* 360 */ 1638, 1531, 1541, 1567, 1571, 1640, 1597, 1599, 1601, 1603, - /* 370 */ 1608, 1610, 1611, 1627, 1664, 1549, 1550, 1609, 1634, 1639, - /* 380 */ 1641, 1602, 1676, 1642, 1646, 1644, 1650, 1654, 1683, 1694, - /* 390 */ 1707, 1711, 1712, 1714, 1643, 1647, 1652, 1698, 1695, 1696, - /* 400 */ 1697, 1699, 1700, 1689, 1691, 1701, 1702, 1704, 1715, + /* 10 */ 166, 238, 133, -207, -199, -267, -176, -6, 204, 489, + /* 20 */ 576, 598, -175, 686, 860, 615, 725, 1014, 778, 781, + /* 30 */ 857, 616, 887, 87, 240, -192, 408, 626, 796, 843, + /* 40 */ 854, 1004, -271, -271, -271, -271, -271, -271, -271, -271, + /* 50 */ -271, -271, -271, -271, -271, -271, -271, -271, -271, -271, + /* 60 */ -271, -271, -271, -271, -271, -271, -271, -271, -271, -271, + /* 70 */ -271, -271, -271, -271, -271, -271, -271, -271, -271, 80, + /* 80 */ 83, 313, 886, 888, 918, 938, 1021, 1034, 1036, 1141, + /* 90 */ 1159, 1163, 1166, 1168, 1170, 1176, 1178, 1180, 1184, 1196, + /* 100 */ 1198, 1205, 1215, 1225, 1227, 1236, 1252, 1254, 1264, 1303, + /* 110 */ 1309, 1312, 1322, 1325, 1328, 1337, 1340, 1343, 1353, 1371, + /* 120 */ 1373, 1384, 1386, 1411, 1413, 1420, 1424, 1426, 1458, 1470, + /* 130 */ 1473, -271, -271, -271, -271, -271, -271, -271, -271, -271, + /* 140 */ -271, -271, 138, 459, 396, -158, 470, 302, -212, 521, + /* 150 */ 201, -195, -92, 559, 630, 632, 630, -271, 632, 901, + /* 160 */ 63, 407, 670, -271, -271, -271, -271, 161, 161, 161, + /* 170 */ 251, 335, 847, 979, 1097, 537, 588, 618, 628, 688, + /* 180 */ 688, -166, -161, 674, 787, 794, 799, 852, 996, -122, + /* 190 */ 837, -120, 1018, 1035, 415, 1047, 1001, 958, 1082, 400, + /* 200 */ 1099, 779, 1137, 1142, 263, 1083, 1145, 1150, 1041, 1139, + /* 210 */ 965, 1050, 362, 849, 752, 629, 675, 1162, 1173, 1090, + /* 220 */ 1195, -194, 56, 185, -135, 232, 522, 560, 571, 601, + /* 230 */ 617, 669, 683, 711, 850, 893, 1000, 1040, 1049, 1081, + /* 240 */ 1087, 1101, 392, 1114, 1123, 1155, 1161, 1175, 1271, 1293, + /* 250 */ 1299, 1330, 1339, 1342, 1347, 593, 1282, 1286, 1350, 1359, + /* 260 */ 1368, 1314, 1480, 1483, 1507, 1085, 1338, 1526, 1527, 1487, + /* 270 */ 1531, 560, 1532, 1534, 1535, 1538, 1539, 1541, 1448, 1450, + /* 280 */ 1496, 1484, 1485, 1489, 1490, 1314, 1496, 1496, 1504, 1536, + /* 290 */ 1564, 1451, 1486, 1492, 1509, 1493, 1465, 1515, 1494, 1495, + /* 300 */ 1517, 1500, 1519, 1474, 1550, 1543, 1548, 1556, 1565, 1566, + /* 310 */ 1518, 1523, 1542, 1544, 1525, 1545, 1513, 1553, 1552, 1604, + /* 320 */ 1508, 1510, 1608, 1609, 1520, 1528, 1612, 1540, 1559, 1560, + /* 330 */ 1592, 1591, 1595, 1596, 1597, 1629, 1638, 1594, 1569, 1570, + /* 340 */ 1600, 1568, 1610, 1601, 1611, 1603, 1643, 1651, 1562, 1571, + /* 350 */ 1655, 1659, 1640, 1663, 1666, 1664, 1667, 1641, 1650, 1652, + /* 360 */ 1653, 1647, 1656, 1657, 1658, 1668, 1672, 1681, 1649, 1682, + /* 370 */ 1683, 1573, 1582, 1607, 1615, 1685, 1702, 1586, 1587, 1642, + /* 380 */ 1646, 1673, 1675, 1636, 1714, 1637, 1677, 1674, 1678, 1694, + /* 390 */ 1719, 1734, 1735, 1746, 1747, 1750, 1633, 1661, 1686, 1738, + /* 400 */ 1728, 1733, 1736, 1737, 1740, 1726, 1730, 1742, 1743, 1748, + /* 410 */ 1753, }; static const YYACTIONTYPE yy_default[] = { - /* 0 */ 1637, 1637, 1637, 1466, 1233, 1344, 1233, 1233, 1233, 1466, - /* 10 */ 1466, 1466, 1233, 1374, 1374, 1519, 1266, 1233, 1233, 1233, - /* 20 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1465, 1233, 1233, - /* 30 */ 1233, 1233, 1554, 1554, 1233, 1233, 1233, 1233, 1233, 1233, - /* 40 */ 1233, 1233, 1383, 1233, 1390, 1233, 1233, 1233, 1233, 1233, - /* 50 */ 1467, 1468, 1233, 1233, 1233, 1518, 1520, 1483, 1397, 1396, - /* 60 */ 1395, 1394, 1501, 1361, 1388, 1381, 1385, 1461, 1462, 1460, - /* 70 */ 1464, 1468, 1467, 1233, 1384, 1431, 1445, 1430, 1233, 1233, - /* 80 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 90 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 100 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 110 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 120 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1439, 1444, - /* 130 */ 1451, 1443, 1440, 1433, 1432, 1434, 1435, 1233, 1233, 1257, - /* 140 */ 1233, 1233, 1254, 1308, 1233, 1233, 1233, 1233, 1233, 1538, - /* 150 */ 1537, 1233, 1436, 1233, 1266, 1425, 1424, 1448, 1437, 1447, - /* 160 */ 1446, 1526, 1590, 1589, 1484, 1233, 1233, 1233, 1233, 1233, - /* 170 */ 1233, 1554, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 180 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 190 */ 1233, 1233, 1233, 1233, 1233, 1554, 1554, 1233, 1266, 1554, - /* 200 */ 1554, 1262, 1262, 1368, 1233, 1533, 1335, 1335, 1335, 1335, - /* 210 */ 1344, 1335, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 220 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1523, 1521, 1233, - /* 230 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 240 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 250 */ 1233, 1233, 1233, 1233, 1233, 1233, 1340, 1233, 1233, 1233, - /* 260 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1583, 1233, - /* 270 */ 1496, 1322, 1340, 1340, 1340, 1340, 1342, 1323, 1321, 1334, - /* 280 */ 1267, 1240, 1629, 1400, 1389, 1341, 1363, 1389, 1363, 1626, - /* 290 */ 1387, 1400, 1400, 1387, 1400, 1341, 1626, 1283, 1606, 1278, - /* 300 */ 1374, 1374, 1374, 1363, 1368, 1368, 1463, 1341, 1334, 1233, - /* 310 */ 1629, 1629, 1349, 1349, 1628, 1628, 1349, 1484, 1613, 1409, - /* 320 */ 1311, 1317, 1317, 1317, 1317, 1349, 1251, 1387, 1613, 1613, - /* 330 */ 1387, 1409, 1311, 1387, 1311, 1387, 1349, 1251, 1500, 1623, - /* 340 */ 1349, 1251, 1474, 1349, 1251, 1349, 1251, 1474, 1309, 1309, - /* 350 */ 1309, 1298, 1233, 1233, 1474, 1309, 1283, 1309, 1298, 1309, - /* 360 */ 1309, 1572, 1233, 1478, 1478, 1474, 1367, 1362, 1367, 1362, - /* 370 */ 1367, 1362, 1367, 1362, 1349, 1564, 1564, 1377, 1377, 1382, - /* 380 */ 1368, 1469, 1349, 1233, 1382, 1380, 1378, 1387, 1301, 1586, - /* 390 */ 1586, 1582, 1582, 1582, 1634, 1634, 1533, 1599, 1266, 1266, - /* 400 */ 1266, 1266, 1599, 1285, 1285, 1267, 1267, 1266, 1599, 1233, - /* 410 */ 1233, 1233, 1233, 1233, 1233, 1594, 1233, 1528, 1485, 1353, - /* 420 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 430 */ 1233, 1233, 1233, 1233, 1539, 1233, 1233, 1233, 1233, 1233, - /* 440 */ 1233, 1233, 1233, 1233, 1233, 1414, 1233, 1236, 1530, 1233, - /* 450 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1391, 1392, 1354, - /* 460 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1406, 1233, 1233, - /* 470 */ 1233, 1401, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 480 */ 1625, 1233, 1233, 1233, 1233, 1233, 1233, 1499, 1498, 1233, - /* 490 */ 1233, 1351, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 500 */ 1233, 1233, 1233, 1233, 1233, 1281, 1233, 1233, 1233, 1233, - /* 510 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 520 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1379, - /* 530 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 540 */ 1233, 1233, 1233, 1233, 1569, 1369, 1233, 1233, 1616, 1233, - /* 550 */ 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233, - /* 560 */ 1233, 1233, 1233, 1610, 1325, 1416, 1233, 1415, 1419, 1255, - /* 570 */ 1233, 1245, 1233, 1233, + /* 0 */ 1648, 1648, 1648, 1478, 1243, 1354, 1243, 1243, 1243, 1478, + /* 10 */ 1478, 1478, 1243, 1384, 1384, 1531, 1276, 1243, 1243, 1243, + /* 20 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1477, 1243, + /* 30 */ 1243, 1243, 1243, 1564, 1564, 1243, 1243, 1243, 1243, 1243, + /* 40 */ 1243, 1243, 1243, 1393, 1243, 1400, 1243, 1243, 1243, 1243, + /* 50 */ 1243, 1479, 1480, 1243, 1243, 1243, 1530, 1532, 1495, 1407, + /* 60 */ 1406, 1405, 1404, 1513, 1372, 1398, 1391, 1395, 1474, 1475, + /* 70 */ 1473, 1626, 1480, 1479, 1243, 1394, 1442, 1458, 1441, 1243, + /* 80 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 90 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 100 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 110 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 120 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 130 */ 1243, 1450, 1457, 1456, 1455, 1464, 1454, 1451, 1444, 1443, + /* 140 */ 1445, 1446, 1243, 1243, 1267, 1243, 1243, 1264, 1318, 1243, + /* 150 */ 1243, 1243, 1243, 1243, 1550, 1549, 1243, 1447, 1243, 1276, + /* 160 */ 1435, 1434, 1433, 1461, 1448, 1460, 1459, 1538, 1600, 1599, + /* 170 */ 1496, 1243, 1243, 1243, 1243, 1243, 1243, 1564, 1243, 1243, + /* 180 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 190 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 200 */ 1243, 1374, 1564, 1564, 1243, 1276, 1564, 1564, 1375, 1375, + /* 210 */ 1272, 1272, 1378, 1243, 1545, 1345, 1345, 1345, 1345, 1354, + /* 220 */ 1345, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 230 */ 1243, 1243, 1243, 1243, 1243, 1243, 1535, 1533, 1243, 1243, + /* 240 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 250 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 260 */ 1243, 1243, 1243, 1243, 1243, 1350, 1243, 1243, 1243, 1243, + /* 270 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1593, 1243, 1508, + /* 280 */ 1332, 1350, 1350, 1350, 1350, 1352, 1333, 1331, 1344, 1277, + /* 290 */ 1250, 1640, 1410, 1399, 1351, 1399, 1637, 1397, 1410, 1410, + /* 300 */ 1397, 1410, 1351, 1637, 1293, 1615, 1288, 1384, 1384, 1384, + /* 310 */ 1374, 1374, 1374, 1374, 1378, 1378, 1476, 1351, 1344, 1243, + /* 320 */ 1640, 1640, 1360, 1360, 1639, 1639, 1360, 1496, 1623, 1419, + /* 330 */ 1321, 1327, 1327, 1327, 1327, 1360, 1261, 1397, 1623, 1623, + /* 340 */ 1397, 1419, 1321, 1397, 1321, 1397, 1360, 1261, 1512, 1634, + /* 350 */ 1360, 1261, 1486, 1360, 1261, 1360, 1261, 1486, 1319, 1319, + /* 360 */ 1319, 1308, 1243, 1243, 1486, 1319, 1293, 1319, 1308, 1319, + /* 370 */ 1319, 1582, 1243, 1490, 1490, 1486, 1360, 1574, 1574, 1387, + /* 380 */ 1387, 1392, 1378, 1481, 1360, 1243, 1392, 1390, 1388, 1397, + /* 390 */ 1311, 1596, 1596, 1592, 1592, 1592, 1645, 1645, 1545, 1608, + /* 400 */ 1276, 1276, 1276, 1276, 1608, 1295, 1295, 1277, 1277, 1276, + /* 410 */ 1608, 1243, 1243, 1243, 1243, 1243, 1243, 1603, 1243, 1540, + /* 420 */ 1497, 1364, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 430 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1551, 1243, + /* 440 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1424, + /* 450 */ 1243, 1246, 1542, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 460 */ 1243, 1401, 1402, 1365, 1243, 1243, 1243, 1243, 1243, 1243, + /* 470 */ 1243, 1416, 1243, 1243, 1243, 1411, 1243, 1243, 1243, 1243, + /* 480 */ 1243, 1243, 1243, 1243, 1636, 1243, 1243, 1243, 1243, 1243, + /* 490 */ 1243, 1511, 1510, 1243, 1243, 1362, 1243, 1243, 1243, 1243, + /* 500 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1291, + /* 510 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 520 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, + /* 530 */ 1243, 1243, 1243, 1389, 1243, 1243, 1243, 1243, 1243, 1243, + /* 540 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1579, 1379, + /* 550 */ 1243, 1243, 1243, 1243, 1627, 1243, 1243, 1243, 1243, 1243, + /* 560 */ 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1243, 1619, + /* 570 */ 1335, 1425, 1243, 1428, 1265, 1243, 1255, 1243, 1243, }; /********** End of lemon-generated parsing tables *****************************/ @@ -163147,12 +172660,12 @@ static const char *const yyTokenName[] = { /* 256 */ "seltablist", /* 257 */ "stl_prefix", /* 258 */ "joinop", - /* 259 */ "indexed_opt", - /* 260 */ "on_opt", - /* 261 */ "using_opt", - /* 262 */ "exprlist", - /* 263 */ "xfullname", - /* 264 */ "idlist", + /* 259 */ "on_using", + /* 260 */ "indexed_by", + /* 261 */ "exprlist", + /* 262 */ "xfullname", + /* 263 */ "idlist", + /* 264 */ "indexed_opt", /* 265 */ "nulls", /* 266 */ "with", /* 267 */ "where_opt_ret", @@ -163323,29 +172836,29 @@ static const char *const yyRuleName[] = { /* 106 */ "from ::= FROM seltablist", /* 107 */ "stl_prefix ::= seltablist joinop", /* 108 */ "stl_prefix ::=", - /* 109 */ "seltablist ::= stl_prefix nm dbnm as indexed_opt on_opt using_opt", - /* 110 */ "seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_opt using_opt", - /* 111 */ "seltablist ::= stl_prefix LP select RP as on_opt using_opt", - /* 112 */ "seltablist ::= stl_prefix LP seltablist RP as on_opt using_opt", - /* 113 */ "dbnm ::=", - /* 114 */ "dbnm ::= DOT nm", - /* 115 */ "fullname ::= nm", - /* 116 */ "fullname ::= nm DOT nm", - /* 117 */ "xfullname ::= nm", - /* 118 */ "xfullname ::= nm DOT nm", - /* 119 */ "xfullname ::= nm DOT nm AS nm", - /* 120 */ "xfullname ::= nm AS nm", - /* 121 */ "joinop ::= COMMA|JOIN", - /* 122 */ "joinop ::= JOIN_KW JOIN", - /* 123 */ "joinop ::= JOIN_KW nm JOIN", - /* 124 */ "joinop ::= JOIN_KW nm nm JOIN", - /* 125 */ "on_opt ::= ON expr", - /* 126 */ "on_opt ::=", - /* 127 */ "indexed_opt ::=", - /* 128 */ "indexed_opt ::= INDEXED BY nm", - /* 129 */ "indexed_opt ::= NOT INDEXED", - /* 130 */ "using_opt ::= USING LP idlist RP", - /* 131 */ "using_opt ::=", + /* 109 */ "seltablist ::= stl_prefix nm dbnm as on_using", + /* 110 */ "seltablist ::= stl_prefix nm dbnm as indexed_by on_using", + /* 111 */ "seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_using", + /* 112 */ "seltablist ::= stl_prefix LP select RP as on_using", + /* 113 */ "seltablist ::= stl_prefix LP seltablist RP as on_using", + /* 114 */ "dbnm ::=", + /* 115 */ "dbnm ::= DOT nm", + /* 116 */ "fullname ::= nm", + /* 117 */ "fullname ::= nm DOT nm", + /* 118 */ "xfullname ::= nm", + /* 119 */ "xfullname ::= nm DOT nm", + /* 120 */ "xfullname ::= nm DOT nm AS nm", + /* 121 */ "xfullname ::= nm AS nm", + /* 122 */ "joinop ::= COMMA|JOIN", + /* 123 */ "joinop ::= JOIN_KW JOIN", + /* 124 */ "joinop ::= JOIN_KW nm JOIN", + /* 125 */ "joinop ::= JOIN_KW nm nm JOIN", + /* 126 */ "on_using ::= ON expr", + /* 127 */ "on_using ::= USING LP idlist RP", + /* 128 */ "on_using ::=", + /* 129 */ "indexed_opt ::=", + /* 130 */ "indexed_by ::= INDEXED BY nm", + /* 131 */ "indexed_by ::= NOT INDEXED", /* 132 */ "orderby_opt ::=", /* 133 */ "orderby_opt ::= ORDER BY sortlist", /* 134 */ "sortlist ::= sortlist COMMA expr sortorder nulls", @@ -163392,145 +172905,145 @@ static const char *const yyRuleName[] = { /* 175 */ "idlist ::= idlist COMMA nm", /* 176 */ "idlist ::= nm", /* 177 */ "expr ::= LP expr RP", - /* 178 */ "expr ::= ID|INDEXED", - /* 179 */ "expr ::= JOIN_KW", - /* 180 */ "expr ::= nm DOT nm", - /* 181 */ "expr ::= nm DOT nm DOT nm", - /* 182 */ "term ::= NULL|FLOAT|BLOB", - /* 183 */ "term ::= STRING", - /* 184 */ "term ::= INTEGER", - /* 185 */ "expr ::= VARIABLE", - /* 186 */ "expr ::= expr COLLATE ID|STRING", - /* 187 */ "expr ::= CAST LP expr AS typetoken RP", - /* 188 */ "expr ::= ID|INDEXED LP distinct exprlist RP", - /* 189 */ "expr ::= ID|INDEXED LP STAR RP", - /* 190 */ "expr ::= ID|INDEXED LP distinct exprlist RP filter_over", - /* 191 */ "expr ::= ID|INDEXED LP STAR RP filter_over", - /* 192 */ "term ::= CTIME_KW", - /* 193 */ "expr ::= LP nexprlist COMMA expr RP", - /* 194 */ "expr ::= expr AND expr", - /* 195 */ "expr ::= expr OR expr", - /* 196 */ "expr ::= expr LT|GT|GE|LE expr", - /* 197 */ "expr ::= expr EQ|NE expr", - /* 198 */ "expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr", - /* 199 */ "expr ::= expr PLUS|MINUS expr", - /* 200 */ "expr ::= expr STAR|SLASH|REM expr", - /* 201 */ "expr ::= expr CONCAT expr", - /* 202 */ "likeop ::= NOT LIKE_KW|MATCH", - /* 203 */ "expr ::= expr likeop expr", - /* 204 */ "expr ::= expr likeop expr ESCAPE expr", - /* 205 */ "expr ::= expr ISNULL|NOTNULL", - /* 206 */ "expr ::= expr NOT NULL", - /* 207 */ "expr ::= expr IS expr", - /* 208 */ "expr ::= expr IS NOT expr", - /* 209 */ "expr ::= NOT expr", - /* 210 */ "expr ::= BITNOT expr", - /* 211 */ "expr ::= PLUS|MINUS expr", - /* 212 */ "expr ::= expr PTR expr", - /* 213 */ "between_op ::= BETWEEN", - /* 214 */ "between_op ::= NOT BETWEEN", - /* 215 */ "expr ::= expr between_op expr AND expr", - /* 216 */ "in_op ::= IN", - /* 217 */ "in_op ::= NOT IN", - /* 218 */ "expr ::= expr in_op LP exprlist RP", - /* 219 */ "expr ::= LP select RP", - /* 220 */ "expr ::= expr in_op LP select RP", - /* 221 */ "expr ::= expr in_op nm dbnm paren_exprlist", - /* 222 */ "expr ::= EXISTS LP select RP", - /* 223 */ "expr ::= CASE case_operand case_exprlist case_else END", - /* 224 */ "case_exprlist ::= case_exprlist WHEN expr THEN expr", - /* 225 */ "case_exprlist ::= WHEN expr THEN expr", - /* 226 */ "case_else ::= ELSE expr", - /* 227 */ "case_else ::=", - /* 228 */ "case_operand ::= expr", - /* 229 */ "case_operand ::=", - /* 230 */ "exprlist ::=", - /* 231 */ "nexprlist ::= nexprlist COMMA expr", - /* 232 */ "nexprlist ::= expr", - /* 233 */ "paren_exprlist ::=", - /* 234 */ "paren_exprlist ::= LP exprlist RP", - /* 235 */ "cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt", - /* 236 */ "uniqueflag ::= UNIQUE", - /* 237 */ "uniqueflag ::=", - /* 238 */ "eidlist_opt ::=", - /* 239 */ "eidlist_opt ::= LP eidlist RP", - /* 240 */ "eidlist ::= eidlist COMMA nm collate sortorder", - /* 241 */ "eidlist ::= nm collate sortorder", - /* 242 */ "collate ::=", - /* 243 */ "collate ::= COLLATE ID|STRING", - /* 244 */ "cmd ::= DROP INDEX ifexists fullname", - /* 245 */ "cmd ::= VACUUM vinto", - /* 246 */ "cmd ::= VACUUM nm vinto", - /* 247 */ "vinto ::= INTO expr", - /* 248 */ "vinto ::=", - /* 249 */ "cmd ::= PRAGMA nm dbnm", - /* 250 */ "cmd ::= PRAGMA nm dbnm EQ nmnum", - /* 251 */ "cmd ::= PRAGMA nm dbnm LP nmnum RP", - /* 252 */ "cmd ::= PRAGMA nm dbnm EQ minus_num", - /* 253 */ "cmd ::= PRAGMA nm dbnm LP minus_num RP", - /* 254 */ "plus_num ::= PLUS INTEGER|FLOAT", - /* 255 */ "minus_num ::= MINUS INTEGER|FLOAT", - /* 256 */ "cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END", - /* 257 */ "trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause", - /* 258 */ "trigger_time ::= BEFORE|AFTER", - /* 259 */ "trigger_time ::= INSTEAD OF", - /* 260 */ "trigger_time ::=", - /* 261 */ "trigger_event ::= DELETE|INSERT", - /* 262 */ "trigger_event ::= UPDATE", - /* 263 */ "trigger_event ::= UPDATE OF idlist", - /* 264 */ "when_clause ::=", - /* 265 */ "when_clause ::= WHEN expr", - /* 266 */ "trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI", - /* 267 */ "trigger_cmd_list ::= trigger_cmd SEMI", - /* 268 */ "trnm ::= nm DOT nm", - /* 269 */ "tridxby ::= INDEXED BY nm", - /* 270 */ "tridxby ::= NOT INDEXED", - /* 271 */ "trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist from where_opt scanpt", - /* 272 */ "trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt", - /* 273 */ "trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt", - /* 274 */ "trigger_cmd ::= scanpt select scanpt", - /* 275 */ "expr ::= RAISE LP IGNORE RP", - /* 276 */ "expr ::= RAISE LP raisetype COMMA nm RP", - /* 277 */ "raisetype ::= ROLLBACK", - /* 278 */ "raisetype ::= ABORT", - /* 279 */ "raisetype ::= FAIL", - /* 280 */ "cmd ::= DROP TRIGGER ifexists fullname", - /* 281 */ "cmd ::= ATTACH database_kw_opt expr AS expr key_opt", - /* 282 */ "cmd ::= DETACH database_kw_opt expr", - /* 283 */ "key_opt ::=", - /* 284 */ "key_opt ::= KEY expr", - /* 285 */ "cmd ::= REINDEX", - /* 286 */ "cmd ::= REINDEX nm dbnm", - /* 287 */ "cmd ::= ANALYZE", - /* 288 */ "cmd ::= ANALYZE nm dbnm", - /* 289 */ "cmd ::= ALTER TABLE fullname RENAME TO nm", - /* 290 */ "cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist", - /* 291 */ "cmd ::= ALTER TABLE fullname DROP kwcolumn_opt nm", - /* 292 */ "add_column_fullname ::= fullname", - /* 293 */ "cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm", - /* 294 */ "cmd ::= create_vtab", - /* 295 */ "cmd ::= create_vtab LP vtabarglist RP", - /* 296 */ "create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm", - /* 297 */ "vtabarg ::=", - /* 298 */ "vtabargtoken ::= ANY", - /* 299 */ "vtabargtoken ::= lp anylist RP", - /* 300 */ "lp ::= LP", - /* 301 */ "with ::= WITH wqlist", - /* 302 */ "with ::= WITH RECURSIVE wqlist", - /* 303 */ "wqas ::= AS", - /* 304 */ "wqas ::= AS MATERIALIZED", - /* 305 */ "wqas ::= AS NOT MATERIALIZED", - /* 306 */ "wqitem ::= nm eidlist_opt wqas LP select RP", - /* 307 */ "wqlist ::= wqitem", - /* 308 */ "wqlist ::= wqlist COMMA wqitem", - /* 309 */ "windowdefn_list ::= windowdefn", - /* 310 */ "windowdefn_list ::= windowdefn_list COMMA windowdefn", - /* 311 */ "windowdefn ::= nm AS LP window RP", - /* 312 */ "window ::= PARTITION BY nexprlist orderby_opt frame_opt", - /* 313 */ "window ::= nm PARTITION BY nexprlist orderby_opt frame_opt", - /* 314 */ "window ::= ORDER BY sortlist frame_opt", - /* 315 */ "window ::= nm ORDER BY sortlist frame_opt", - /* 316 */ "window ::= frame_opt", + /* 178 */ "expr ::= ID|INDEXED|JOIN_KW", + /* 179 */ "expr ::= nm DOT nm", + /* 180 */ "expr ::= nm DOT nm DOT nm", + /* 181 */ "term ::= NULL|FLOAT|BLOB", + /* 182 */ "term ::= STRING", + /* 183 */ "term ::= INTEGER", + /* 184 */ "expr ::= VARIABLE", + /* 185 */ "expr ::= expr COLLATE ID|STRING", + /* 186 */ "expr ::= CAST LP expr AS typetoken RP", + /* 187 */ "expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist RP", + /* 188 */ "expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist ORDER BY sortlist RP", + /* 189 */ "expr ::= ID|INDEXED|JOIN_KW LP STAR RP", + /* 190 */ "expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist RP filter_over", + /* 191 */ "expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist ORDER BY sortlist RP filter_over", + /* 192 */ "expr ::= ID|INDEXED|JOIN_KW LP STAR RP filter_over", + /* 193 */ "term ::= CTIME_KW", + /* 194 */ "expr ::= LP nexprlist COMMA expr RP", + /* 195 */ "expr ::= expr AND expr", + /* 196 */ "expr ::= expr OR expr", + /* 197 */ "expr ::= expr LT|GT|GE|LE expr", + /* 198 */ "expr ::= expr EQ|NE expr", + /* 199 */ "expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr", + /* 200 */ "expr ::= expr PLUS|MINUS expr", + /* 201 */ "expr ::= expr STAR|SLASH|REM expr", + /* 202 */ "expr ::= expr CONCAT expr", + /* 203 */ "likeop ::= NOT LIKE_KW|MATCH", + /* 204 */ "expr ::= expr likeop expr", + /* 205 */ "expr ::= expr likeop expr ESCAPE expr", + /* 206 */ "expr ::= expr ISNULL|NOTNULL", + /* 207 */ "expr ::= expr NOT NULL", + /* 208 */ "expr ::= expr IS expr", + /* 209 */ "expr ::= expr IS NOT expr", + /* 210 */ "expr ::= expr IS NOT DISTINCT FROM expr", + /* 211 */ "expr ::= expr IS DISTINCT FROM expr", + /* 212 */ "expr ::= NOT expr", + /* 213 */ "expr ::= BITNOT expr", + /* 214 */ "expr ::= PLUS|MINUS expr", + /* 215 */ "expr ::= expr PTR expr", + /* 216 */ "between_op ::= BETWEEN", + /* 217 */ "between_op ::= NOT BETWEEN", + /* 218 */ "expr ::= expr between_op expr AND expr", + /* 219 */ "in_op ::= IN", + /* 220 */ "in_op ::= NOT IN", + /* 221 */ "expr ::= expr in_op LP exprlist RP", + /* 222 */ "expr ::= LP select RP", + /* 223 */ "expr ::= expr in_op LP select RP", + /* 224 */ "expr ::= expr in_op nm dbnm paren_exprlist", + /* 225 */ "expr ::= EXISTS LP select RP", + /* 226 */ "expr ::= CASE case_operand case_exprlist case_else END", + /* 227 */ "case_exprlist ::= case_exprlist WHEN expr THEN expr", + /* 228 */ "case_exprlist ::= WHEN expr THEN expr", + /* 229 */ "case_else ::= ELSE expr", + /* 230 */ "case_else ::=", + /* 231 */ "case_operand ::=", + /* 232 */ "exprlist ::=", + /* 233 */ "nexprlist ::= nexprlist COMMA expr", + /* 234 */ "nexprlist ::= expr", + /* 235 */ "paren_exprlist ::=", + /* 236 */ "paren_exprlist ::= LP exprlist RP", + /* 237 */ "cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt", + /* 238 */ "uniqueflag ::= UNIQUE", + /* 239 */ "uniqueflag ::=", + /* 240 */ "eidlist_opt ::=", + /* 241 */ "eidlist_opt ::= LP eidlist RP", + /* 242 */ "eidlist ::= eidlist COMMA nm collate sortorder", + /* 243 */ "eidlist ::= nm collate sortorder", + /* 244 */ "collate ::=", + /* 245 */ "collate ::= COLLATE ID|STRING", + /* 246 */ "cmd ::= DROP INDEX ifexists fullname", + /* 247 */ "cmd ::= VACUUM vinto", + /* 248 */ "cmd ::= VACUUM nm vinto", + /* 249 */ "vinto ::= INTO expr", + /* 250 */ "vinto ::=", + /* 251 */ "cmd ::= PRAGMA nm dbnm", + /* 252 */ "cmd ::= PRAGMA nm dbnm EQ nmnum", + /* 253 */ "cmd ::= PRAGMA nm dbnm LP nmnum RP", + /* 254 */ "cmd ::= PRAGMA nm dbnm EQ minus_num", + /* 255 */ "cmd ::= PRAGMA nm dbnm LP minus_num RP", + /* 256 */ "plus_num ::= PLUS INTEGER|FLOAT", + /* 257 */ "minus_num ::= MINUS INTEGER|FLOAT", + /* 258 */ "cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END", + /* 259 */ "trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause", + /* 260 */ "trigger_time ::= BEFORE|AFTER", + /* 261 */ "trigger_time ::= INSTEAD OF", + /* 262 */ "trigger_time ::=", + /* 263 */ "trigger_event ::= DELETE|INSERT", + /* 264 */ "trigger_event ::= UPDATE", + /* 265 */ "trigger_event ::= UPDATE OF idlist", + /* 266 */ "when_clause ::=", + /* 267 */ "when_clause ::= WHEN expr", + /* 268 */ "trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI", + /* 269 */ "trigger_cmd_list ::= trigger_cmd SEMI", + /* 270 */ "trnm ::= nm DOT nm", + /* 271 */ "tridxby ::= INDEXED BY nm", + /* 272 */ "tridxby ::= NOT INDEXED", + /* 273 */ "trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist from where_opt scanpt", + /* 274 */ "trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt", + /* 275 */ "trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt", + /* 276 */ "trigger_cmd ::= scanpt select scanpt", + /* 277 */ "expr ::= RAISE LP IGNORE RP", + /* 278 */ "expr ::= RAISE LP raisetype COMMA nm RP", + /* 279 */ "raisetype ::= ROLLBACK", + /* 280 */ "raisetype ::= ABORT", + /* 281 */ "raisetype ::= FAIL", + /* 282 */ "cmd ::= DROP TRIGGER ifexists fullname", + /* 283 */ "cmd ::= ATTACH database_kw_opt expr AS expr key_opt", + /* 284 */ "cmd ::= DETACH database_kw_opt expr", + /* 285 */ "key_opt ::=", + /* 286 */ "key_opt ::= KEY expr", + /* 287 */ "cmd ::= REINDEX", + /* 288 */ "cmd ::= REINDEX nm dbnm", + /* 289 */ "cmd ::= ANALYZE", + /* 290 */ "cmd ::= ANALYZE nm dbnm", + /* 291 */ "cmd ::= ALTER TABLE fullname RENAME TO nm", + /* 292 */ "cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist", + /* 293 */ "cmd ::= ALTER TABLE fullname DROP kwcolumn_opt nm", + /* 294 */ "add_column_fullname ::= fullname", + /* 295 */ "cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm", + /* 296 */ "cmd ::= create_vtab", + /* 297 */ "cmd ::= create_vtab LP vtabarglist RP", + /* 298 */ "create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm", + /* 299 */ "vtabarg ::=", + /* 300 */ "vtabargtoken ::= ANY", + /* 301 */ "vtabargtoken ::= lp anylist RP", + /* 302 */ "lp ::= LP", + /* 303 */ "with ::= WITH wqlist", + /* 304 */ "with ::= WITH RECURSIVE wqlist", + /* 305 */ "wqas ::= AS", + /* 306 */ "wqas ::= AS MATERIALIZED", + /* 307 */ "wqas ::= AS NOT MATERIALIZED", + /* 308 */ "wqitem ::= nm eidlist_opt wqas LP select RP", + /* 309 */ "wqlist ::= wqitem", + /* 310 */ "wqlist ::= wqlist COMMA wqitem", + /* 311 */ "windowdefn_list ::= windowdefn_list COMMA windowdefn", + /* 312 */ "windowdefn ::= nm AS LP window RP", + /* 313 */ "window ::= PARTITION BY nexprlist orderby_opt frame_opt", + /* 314 */ "window ::= nm PARTITION BY nexprlist orderby_opt frame_opt", + /* 315 */ "window ::= ORDER BY sortlist frame_opt", + /* 316 */ "window ::= nm ORDER BY sortlist frame_opt", /* 317 */ "window ::= nm frame_opt", /* 318 */ "frame_opt ::=", /* 319 */ "frame_opt ::= range_or_rows frame_bound_s frame_exclude_opt", @@ -163569,53 +173082,56 @@ static const char *const yyRuleName[] = { /* 352 */ "table_option_set ::= table_option", /* 353 */ "columnlist ::= columnlist COMMA columnname carglist", /* 354 */ "columnlist ::= columnname carglist", - /* 355 */ "nm ::= ID|INDEXED", + /* 355 */ "nm ::= ID|INDEXED|JOIN_KW", /* 356 */ "nm ::= STRING", - /* 357 */ "nm ::= JOIN_KW", - /* 358 */ "typetoken ::= typename", - /* 359 */ "typename ::= ID|STRING", - /* 360 */ "signed ::= plus_num", - /* 361 */ "signed ::= minus_num", - /* 362 */ "carglist ::= carglist ccons", - /* 363 */ "carglist ::=", - /* 364 */ "ccons ::= NULL onconf", - /* 365 */ "ccons ::= GENERATED ALWAYS AS generated", - /* 366 */ "ccons ::= AS generated", - /* 367 */ "conslist_opt ::= COMMA conslist", - /* 368 */ "conslist ::= conslist tconscomma tcons", - /* 369 */ "conslist ::= tcons", - /* 370 */ "tconscomma ::=", - /* 371 */ "defer_subclause_opt ::= defer_subclause", - /* 372 */ "resolvetype ::= raisetype", - /* 373 */ "selectnowith ::= oneselect", - /* 374 */ "oneselect ::= values", - /* 375 */ "sclp ::= selcollist COMMA", - /* 376 */ "as ::= ID|STRING", + /* 357 */ "typetoken ::= typename", + /* 358 */ "typename ::= ID|STRING", + /* 359 */ "signed ::= plus_num", + /* 360 */ "signed ::= minus_num", + /* 361 */ "carglist ::= carglist ccons", + /* 362 */ "carglist ::=", + /* 363 */ "ccons ::= NULL onconf", + /* 364 */ "ccons ::= GENERATED ALWAYS AS generated", + /* 365 */ "ccons ::= AS generated", + /* 366 */ "conslist_opt ::= COMMA conslist", + /* 367 */ "conslist ::= conslist tconscomma tcons", + /* 368 */ "conslist ::= tcons", + /* 369 */ "tconscomma ::=", + /* 370 */ "defer_subclause_opt ::= defer_subclause", + /* 371 */ "resolvetype ::= raisetype", + /* 372 */ "selectnowith ::= oneselect", + /* 373 */ "oneselect ::= values", + /* 374 */ "sclp ::= selcollist COMMA", + /* 375 */ "as ::= ID|STRING", + /* 376 */ "indexed_opt ::= indexed_by", /* 377 */ "returning ::=", /* 378 */ "expr ::= term", /* 379 */ "likeop ::= LIKE_KW|MATCH", - /* 380 */ "exprlist ::= nexprlist", - /* 381 */ "nmnum ::= plus_num", - /* 382 */ "nmnum ::= nm", - /* 383 */ "nmnum ::= ON", - /* 384 */ "nmnum ::= DELETE", - /* 385 */ "nmnum ::= DEFAULT", - /* 386 */ "plus_num ::= INTEGER|FLOAT", - /* 387 */ "foreach_clause ::=", - /* 388 */ "foreach_clause ::= FOR EACH ROW", - /* 389 */ "trnm ::= nm", - /* 390 */ "tridxby ::=", - /* 391 */ "database_kw_opt ::= DATABASE", - /* 392 */ "database_kw_opt ::=", - /* 393 */ "kwcolumn_opt ::=", - /* 394 */ "kwcolumn_opt ::= COLUMNKW", - /* 395 */ "vtabarglist ::= vtabarg", - /* 396 */ "vtabarglist ::= vtabarglist COMMA vtabarg", - /* 397 */ "vtabarg ::= vtabarg vtabargtoken", - /* 398 */ "anylist ::=", - /* 399 */ "anylist ::= anylist LP anylist RP", - /* 400 */ "anylist ::= anylist ANY", - /* 401 */ "with ::=", + /* 380 */ "case_operand ::= expr", + /* 381 */ "exprlist ::= nexprlist", + /* 382 */ "nmnum ::= plus_num", + /* 383 */ "nmnum ::= nm", + /* 384 */ "nmnum ::= ON", + /* 385 */ "nmnum ::= DELETE", + /* 386 */ "nmnum ::= DEFAULT", + /* 387 */ "plus_num ::= INTEGER|FLOAT", + /* 388 */ "foreach_clause ::=", + /* 389 */ "foreach_clause ::= FOR EACH ROW", + /* 390 */ "trnm ::= nm", + /* 391 */ "tridxby ::=", + /* 392 */ "database_kw_opt ::= DATABASE", + /* 393 */ "database_kw_opt ::=", + /* 394 */ "kwcolumn_opt ::=", + /* 395 */ "kwcolumn_opt ::= COLUMNKW", + /* 396 */ "vtabarglist ::= vtabarg", + /* 397 */ "vtabarglist ::= vtabarglist COMMA vtabarg", + /* 398 */ "vtabarg ::= vtabarg vtabargtoken", + /* 399 */ "anylist ::=", + /* 400 */ "anylist ::= anylist LP anylist RP", + /* 401 */ "anylist ::= anylist ANY", + /* 402 */ "with ::=", + /* 403 */ "windowdefn_list ::= windowdefn", + /* 404 */ "window ::= frame_opt", }; #endif /* NDEBUG */ @@ -163753,7 +173269,6 @@ sqlite3SelectDelete(pParse->db, (yypminor->yy47)); case 217: /* expr */ case 246: /* where_opt */ case 248: /* having_opt */ - case 260: /* on_opt */ case 267: /* where_opt_ret */ case 278: /* case_operand */ case 280: /* case_else */ @@ -163773,7 +173288,7 @@ sqlite3ExprDelete(pParse->db, (yypminor->yy528)); case 249: /* orderby_opt */ case 253: /* nexprlist */ case 254: /* sclp */ - case 262: /* exprlist */ + case 261: /* exprlist */ case 268: /* setlist */ case 277: /* paren_exprlist */ case 279: /* case_exprlist */ @@ -163786,7 +173301,7 @@ sqlite3ExprListDelete(pParse->db, (yypminor->yy322)); case 245: /* from */ case 256: /* seltablist */ case 257: /* stl_prefix */ - case 263: /* xfullname */ + case 262: /* xfullname */ { sqlite3SrcListDelete(pParse->db, (yypminor->yy131)); } @@ -163802,8 +173317,7 @@ sqlite3WithDelete(pParse->db, (yypminor->yy521)); sqlite3WindowListDelete(pParse->db, (yypminor->yy41)); } break; - case 261: /* using_opt */ - case 264: /* idlist */ + case 263: /* idlist */ case 270: /* idlist_opt */ { sqlite3IdListDelete(pParse->db, (yypminor->yy254)); @@ -164233,29 +173747,29 @@ static const YYCODETYPE yyRuleInfoLhs[] = { 245, /* (106) from ::= FROM seltablist */ 257, /* (107) stl_prefix ::= seltablist joinop */ 257, /* (108) stl_prefix ::= */ - 256, /* (109) seltablist ::= stl_prefix nm dbnm as indexed_opt on_opt using_opt */ - 256, /* (110) seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_opt using_opt */ - 256, /* (111) seltablist ::= stl_prefix LP select RP as on_opt using_opt */ - 256, /* (112) seltablist ::= stl_prefix LP seltablist RP as on_opt using_opt */ - 200, /* (113) dbnm ::= */ - 200, /* (114) dbnm ::= DOT nm */ - 238, /* (115) fullname ::= nm */ - 238, /* (116) fullname ::= nm DOT nm */ - 263, /* (117) xfullname ::= nm */ - 263, /* (118) xfullname ::= nm DOT nm */ - 263, /* (119) xfullname ::= nm DOT nm AS nm */ - 263, /* (120) xfullname ::= nm AS nm */ - 258, /* (121) joinop ::= COMMA|JOIN */ - 258, /* (122) joinop ::= JOIN_KW JOIN */ - 258, /* (123) joinop ::= JOIN_KW nm JOIN */ - 258, /* (124) joinop ::= JOIN_KW nm nm JOIN */ - 260, /* (125) on_opt ::= ON expr */ - 260, /* (126) on_opt ::= */ - 259, /* (127) indexed_opt ::= */ - 259, /* (128) indexed_opt ::= INDEXED BY nm */ - 259, /* (129) indexed_opt ::= NOT INDEXED */ - 261, /* (130) using_opt ::= USING LP idlist RP */ - 261, /* (131) using_opt ::= */ + 256, /* (109) seltablist ::= stl_prefix nm dbnm as on_using */ + 256, /* (110) seltablist ::= stl_prefix nm dbnm as indexed_by on_using */ + 256, /* (111) seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_using */ + 256, /* (112) seltablist ::= stl_prefix LP select RP as on_using */ + 256, /* (113) seltablist ::= stl_prefix LP seltablist RP as on_using */ + 200, /* (114) dbnm ::= */ + 200, /* (115) dbnm ::= DOT nm */ + 238, /* (116) fullname ::= nm */ + 238, /* (117) fullname ::= nm DOT nm */ + 262, /* (118) xfullname ::= nm */ + 262, /* (119) xfullname ::= nm DOT nm */ + 262, /* (120) xfullname ::= nm DOT nm AS nm */ + 262, /* (121) xfullname ::= nm AS nm */ + 258, /* (122) joinop ::= COMMA|JOIN */ + 258, /* (123) joinop ::= JOIN_KW JOIN */ + 258, /* (124) joinop ::= JOIN_KW nm JOIN */ + 258, /* (125) joinop ::= JOIN_KW nm nm JOIN */ + 259, /* (126) on_using ::= ON expr */ + 259, /* (127) on_using ::= USING LP idlist RP */ + 259, /* (128) on_using ::= */ + 264, /* (129) indexed_opt ::= */ + 260, /* (130) indexed_by ::= INDEXED BY nm */ + 260, /* (131) indexed_by ::= NOT INDEXED */ 249, /* (132) orderby_opt ::= */ 249, /* (133) orderby_opt ::= ORDER BY sortlist */ 231, /* (134) sortlist ::= sortlist COMMA expr sortorder nulls */ @@ -164299,148 +173813,148 @@ static const YYCODETYPE yyRuleInfoLhs[] = { 269, /* (172) insert_cmd ::= REPLACE */ 270, /* (173) idlist_opt ::= */ 270, /* (174) idlist_opt ::= LP idlist RP */ - 264, /* (175) idlist ::= idlist COMMA nm */ - 264, /* (176) idlist ::= nm */ + 263, /* (175) idlist ::= idlist COMMA nm */ + 263, /* (176) idlist ::= nm */ 217, /* (177) expr ::= LP expr RP */ - 217, /* (178) expr ::= ID|INDEXED */ - 217, /* (179) expr ::= JOIN_KW */ - 217, /* (180) expr ::= nm DOT nm */ - 217, /* (181) expr ::= nm DOT nm DOT nm */ - 216, /* (182) term ::= NULL|FLOAT|BLOB */ - 216, /* (183) term ::= STRING */ - 216, /* (184) term ::= INTEGER */ - 217, /* (185) expr ::= VARIABLE */ - 217, /* (186) expr ::= expr COLLATE ID|STRING */ - 217, /* (187) expr ::= CAST LP expr AS typetoken RP */ - 217, /* (188) expr ::= ID|INDEXED LP distinct exprlist RP */ - 217, /* (189) expr ::= ID|INDEXED LP STAR RP */ - 217, /* (190) expr ::= ID|INDEXED LP distinct exprlist RP filter_over */ - 217, /* (191) expr ::= ID|INDEXED LP STAR RP filter_over */ - 216, /* (192) term ::= CTIME_KW */ - 217, /* (193) expr ::= LP nexprlist COMMA expr RP */ - 217, /* (194) expr ::= expr AND expr */ - 217, /* (195) expr ::= expr OR expr */ - 217, /* (196) expr ::= expr LT|GT|GE|LE expr */ - 217, /* (197) expr ::= expr EQ|NE expr */ - 217, /* (198) expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr */ - 217, /* (199) expr ::= expr PLUS|MINUS expr */ - 217, /* (200) expr ::= expr STAR|SLASH|REM expr */ - 217, /* (201) expr ::= expr CONCAT expr */ - 274, /* (202) likeop ::= NOT LIKE_KW|MATCH */ - 217, /* (203) expr ::= expr likeop expr */ - 217, /* (204) expr ::= expr likeop expr ESCAPE expr */ - 217, /* (205) expr ::= expr ISNULL|NOTNULL */ - 217, /* (206) expr ::= expr NOT NULL */ - 217, /* (207) expr ::= expr IS expr */ - 217, /* (208) expr ::= expr IS NOT expr */ - 217, /* (209) expr ::= NOT expr */ - 217, /* (210) expr ::= BITNOT expr */ - 217, /* (211) expr ::= PLUS|MINUS expr */ - 217, /* (212) expr ::= expr PTR expr */ - 275, /* (213) between_op ::= BETWEEN */ - 275, /* (214) between_op ::= NOT BETWEEN */ - 217, /* (215) expr ::= expr between_op expr AND expr */ - 276, /* (216) in_op ::= IN */ - 276, /* (217) in_op ::= NOT IN */ - 217, /* (218) expr ::= expr in_op LP exprlist RP */ - 217, /* (219) expr ::= LP select RP */ - 217, /* (220) expr ::= expr in_op LP select RP */ - 217, /* (221) expr ::= expr in_op nm dbnm paren_exprlist */ - 217, /* (222) expr ::= EXISTS LP select RP */ - 217, /* (223) expr ::= CASE case_operand case_exprlist case_else END */ - 279, /* (224) case_exprlist ::= case_exprlist WHEN expr THEN expr */ - 279, /* (225) case_exprlist ::= WHEN expr THEN expr */ - 280, /* (226) case_else ::= ELSE expr */ - 280, /* (227) case_else ::= */ - 278, /* (228) case_operand ::= expr */ - 278, /* (229) case_operand ::= */ - 262, /* (230) exprlist ::= */ - 253, /* (231) nexprlist ::= nexprlist COMMA expr */ - 253, /* (232) nexprlist ::= expr */ - 277, /* (233) paren_exprlist ::= */ - 277, /* (234) paren_exprlist ::= LP exprlist RP */ - 190, /* (235) cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt */ - 281, /* (236) uniqueflag ::= UNIQUE */ - 281, /* (237) uniqueflag ::= */ - 221, /* (238) eidlist_opt ::= */ - 221, /* (239) eidlist_opt ::= LP eidlist RP */ - 232, /* (240) eidlist ::= eidlist COMMA nm collate sortorder */ - 232, /* (241) eidlist ::= nm collate sortorder */ - 282, /* (242) collate ::= */ - 282, /* (243) collate ::= COLLATE ID|STRING */ - 190, /* (244) cmd ::= DROP INDEX ifexists fullname */ - 190, /* (245) cmd ::= VACUUM vinto */ - 190, /* (246) cmd ::= VACUUM nm vinto */ - 283, /* (247) vinto ::= INTO expr */ - 283, /* (248) vinto ::= */ - 190, /* (249) cmd ::= PRAGMA nm dbnm */ - 190, /* (250) cmd ::= PRAGMA nm dbnm EQ nmnum */ - 190, /* (251) cmd ::= PRAGMA nm dbnm LP nmnum RP */ - 190, /* (252) cmd ::= PRAGMA nm dbnm EQ minus_num */ - 190, /* (253) cmd ::= PRAGMA nm dbnm LP minus_num RP */ - 211, /* (254) plus_num ::= PLUS INTEGER|FLOAT */ - 212, /* (255) minus_num ::= MINUS INTEGER|FLOAT */ - 190, /* (256) cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END */ - 285, /* (257) trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause */ - 287, /* (258) trigger_time ::= BEFORE|AFTER */ - 287, /* (259) trigger_time ::= INSTEAD OF */ - 287, /* (260) trigger_time ::= */ - 288, /* (261) trigger_event ::= DELETE|INSERT */ - 288, /* (262) trigger_event ::= UPDATE */ - 288, /* (263) trigger_event ::= UPDATE OF idlist */ - 290, /* (264) when_clause ::= */ - 290, /* (265) when_clause ::= WHEN expr */ - 286, /* (266) trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI */ - 286, /* (267) trigger_cmd_list ::= trigger_cmd SEMI */ - 292, /* (268) trnm ::= nm DOT nm */ - 293, /* (269) tridxby ::= INDEXED BY nm */ - 293, /* (270) tridxby ::= NOT INDEXED */ - 291, /* (271) trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist from where_opt scanpt */ - 291, /* (272) trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt */ - 291, /* (273) trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt */ - 291, /* (274) trigger_cmd ::= scanpt select scanpt */ - 217, /* (275) expr ::= RAISE LP IGNORE RP */ - 217, /* (276) expr ::= RAISE LP raisetype COMMA nm RP */ - 236, /* (277) raisetype ::= ROLLBACK */ - 236, /* (278) raisetype ::= ABORT */ - 236, /* (279) raisetype ::= FAIL */ - 190, /* (280) cmd ::= DROP TRIGGER ifexists fullname */ - 190, /* (281) cmd ::= ATTACH database_kw_opt expr AS expr key_opt */ - 190, /* (282) cmd ::= DETACH database_kw_opt expr */ - 295, /* (283) key_opt ::= */ - 295, /* (284) key_opt ::= KEY expr */ - 190, /* (285) cmd ::= REINDEX */ - 190, /* (286) cmd ::= REINDEX nm dbnm */ - 190, /* (287) cmd ::= ANALYZE */ - 190, /* (288) cmd ::= ANALYZE nm dbnm */ - 190, /* (289) cmd ::= ALTER TABLE fullname RENAME TO nm */ - 190, /* (290) cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist */ - 190, /* (291) cmd ::= ALTER TABLE fullname DROP kwcolumn_opt nm */ - 296, /* (292) add_column_fullname ::= fullname */ - 190, /* (293) cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm */ - 190, /* (294) cmd ::= create_vtab */ - 190, /* (295) cmd ::= create_vtab LP vtabarglist RP */ - 298, /* (296) create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm */ - 300, /* (297) vtabarg ::= */ - 301, /* (298) vtabargtoken ::= ANY */ - 301, /* (299) vtabargtoken ::= lp anylist RP */ - 302, /* (300) lp ::= LP */ - 266, /* (301) with ::= WITH wqlist */ - 266, /* (302) with ::= WITH RECURSIVE wqlist */ - 305, /* (303) wqas ::= AS */ - 305, /* (304) wqas ::= AS MATERIALIZED */ - 305, /* (305) wqas ::= AS NOT MATERIALIZED */ - 304, /* (306) wqitem ::= nm eidlist_opt wqas LP select RP */ - 241, /* (307) wqlist ::= wqitem */ - 241, /* (308) wqlist ::= wqlist COMMA wqitem */ - 306, /* (309) windowdefn_list ::= windowdefn */ - 306, /* (310) windowdefn_list ::= windowdefn_list COMMA windowdefn */ - 307, /* (311) windowdefn ::= nm AS LP window RP */ - 308, /* (312) window ::= PARTITION BY nexprlist orderby_opt frame_opt */ - 308, /* (313) window ::= nm PARTITION BY nexprlist orderby_opt frame_opt */ - 308, /* (314) window ::= ORDER BY sortlist frame_opt */ - 308, /* (315) window ::= nm ORDER BY sortlist frame_opt */ - 308, /* (316) window ::= frame_opt */ + 217, /* (178) expr ::= ID|INDEXED|JOIN_KW */ + 217, /* (179) expr ::= nm DOT nm */ + 217, /* (180) expr ::= nm DOT nm DOT nm */ + 216, /* (181) term ::= NULL|FLOAT|BLOB */ + 216, /* (182) term ::= STRING */ + 216, /* (183) term ::= INTEGER */ + 217, /* (184) expr ::= VARIABLE */ + 217, /* (185) expr ::= expr COLLATE ID|STRING */ + 217, /* (186) expr ::= CAST LP expr AS typetoken RP */ + 217, /* (187) expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist RP */ + 217, /* (188) expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist ORDER BY sortlist RP */ + 217, /* (189) expr ::= ID|INDEXED|JOIN_KW LP STAR RP */ + 217, /* (190) expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist RP filter_over */ + 217, /* (191) expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist ORDER BY sortlist RP filter_over */ + 217, /* (192) expr ::= ID|INDEXED|JOIN_KW LP STAR RP filter_over */ + 216, /* (193) term ::= CTIME_KW */ + 217, /* (194) expr ::= LP nexprlist COMMA expr RP */ + 217, /* (195) expr ::= expr AND expr */ + 217, /* (196) expr ::= expr OR expr */ + 217, /* (197) expr ::= expr LT|GT|GE|LE expr */ + 217, /* (198) expr ::= expr EQ|NE expr */ + 217, /* (199) expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr */ + 217, /* (200) expr ::= expr PLUS|MINUS expr */ + 217, /* (201) expr ::= expr STAR|SLASH|REM expr */ + 217, /* (202) expr ::= expr CONCAT expr */ + 274, /* (203) likeop ::= NOT LIKE_KW|MATCH */ + 217, /* (204) expr ::= expr likeop expr */ + 217, /* (205) expr ::= expr likeop expr ESCAPE expr */ + 217, /* (206) expr ::= expr ISNULL|NOTNULL */ + 217, /* (207) expr ::= expr NOT NULL */ + 217, /* (208) expr ::= expr IS expr */ + 217, /* (209) expr ::= expr IS NOT expr */ + 217, /* (210) expr ::= expr IS NOT DISTINCT FROM expr */ + 217, /* (211) expr ::= expr IS DISTINCT FROM expr */ + 217, /* (212) expr ::= NOT expr */ + 217, /* (213) expr ::= BITNOT expr */ + 217, /* (214) expr ::= PLUS|MINUS expr */ + 217, /* (215) expr ::= expr PTR expr */ + 275, /* (216) between_op ::= BETWEEN */ + 275, /* (217) between_op ::= NOT BETWEEN */ + 217, /* (218) expr ::= expr between_op expr AND expr */ + 276, /* (219) in_op ::= IN */ + 276, /* (220) in_op ::= NOT IN */ + 217, /* (221) expr ::= expr in_op LP exprlist RP */ + 217, /* (222) expr ::= LP select RP */ + 217, /* (223) expr ::= expr in_op LP select RP */ + 217, /* (224) expr ::= expr in_op nm dbnm paren_exprlist */ + 217, /* (225) expr ::= EXISTS LP select RP */ + 217, /* (226) expr ::= CASE case_operand case_exprlist case_else END */ + 279, /* (227) case_exprlist ::= case_exprlist WHEN expr THEN expr */ + 279, /* (228) case_exprlist ::= WHEN expr THEN expr */ + 280, /* (229) case_else ::= ELSE expr */ + 280, /* (230) case_else ::= */ + 278, /* (231) case_operand ::= */ + 261, /* (232) exprlist ::= */ + 253, /* (233) nexprlist ::= nexprlist COMMA expr */ + 253, /* (234) nexprlist ::= expr */ + 277, /* (235) paren_exprlist ::= */ + 277, /* (236) paren_exprlist ::= LP exprlist RP */ + 190, /* (237) cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt */ + 281, /* (238) uniqueflag ::= UNIQUE */ + 281, /* (239) uniqueflag ::= */ + 221, /* (240) eidlist_opt ::= */ + 221, /* (241) eidlist_opt ::= LP eidlist RP */ + 232, /* (242) eidlist ::= eidlist COMMA nm collate sortorder */ + 232, /* (243) eidlist ::= nm collate sortorder */ + 282, /* (244) collate ::= */ + 282, /* (245) collate ::= COLLATE ID|STRING */ + 190, /* (246) cmd ::= DROP INDEX ifexists fullname */ + 190, /* (247) cmd ::= VACUUM vinto */ + 190, /* (248) cmd ::= VACUUM nm vinto */ + 283, /* (249) vinto ::= INTO expr */ + 283, /* (250) vinto ::= */ + 190, /* (251) cmd ::= PRAGMA nm dbnm */ + 190, /* (252) cmd ::= PRAGMA nm dbnm EQ nmnum */ + 190, /* (253) cmd ::= PRAGMA nm dbnm LP nmnum RP */ + 190, /* (254) cmd ::= PRAGMA nm dbnm EQ minus_num */ + 190, /* (255) cmd ::= PRAGMA nm dbnm LP minus_num RP */ + 211, /* (256) plus_num ::= PLUS INTEGER|FLOAT */ + 212, /* (257) minus_num ::= MINUS INTEGER|FLOAT */ + 190, /* (258) cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END */ + 285, /* (259) trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause */ + 287, /* (260) trigger_time ::= BEFORE|AFTER */ + 287, /* (261) trigger_time ::= INSTEAD OF */ + 287, /* (262) trigger_time ::= */ + 288, /* (263) trigger_event ::= DELETE|INSERT */ + 288, /* (264) trigger_event ::= UPDATE */ + 288, /* (265) trigger_event ::= UPDATE OF idlist */ + 290, /* (266) when_clause ::= */ + 290, /* (267) when_clause ::= WHEN expr */ + 286, /* (268) trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI */ + 286, /* (269) trigger_cmd_list ::= trigger_cmd SEMI */ + 292, /* (270) trnm ::= nm DOT nm */ + 293, /* (271) tridxby ::= INDEXED BY nm */ + 293, /* (272) tridxby ::= NOT INDEXED */ + 291, /* (273) trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist from where_opt scanpt */ + 291, /* (274) trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt */ + 291, /* (275) trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt */ + 291, /* (276) trigger_cmd ::= scanpt select scanpt */ + 217, /* (277) expr ::= RAISE LP IGNORE RP */ + 217, /* (278) expr ::= RAISE LP raisetype COMMA nm RP */ + 236, /* (279) raisetype ::= ROLLBACK */ + 236, /* (280) raisetype ::= ABORT */ + 236, /* (281) raisetype ::= FAIL */ + 190, /* (282) cmd ::= DROP TRIGGER ifexists fullname */ + 190, /* (283) cmd ::= ATTACH database_kw_opt expr AS expr key_opt */ + 190, /* (284) cmd ::= DETACH database_kw_opt expr */ + 295, /* (285) key_opt ::= */ + 295, /* (286) key_opt ::= KEY expr */ + 190, /* (287) cmd ::= REINDEX */ + 190, /* (288) cmd ::= REINDEX nm dbnm */ + 190, /* (289) cmd ::= ANALYZE */ + 190, /* (290) cmd ::= ANALYZE nm dbnm */ + 190, /* (291) cmd ::= ALTER TABLE fullname RENAME TO nm */ + 190, /* (292) cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist */ + 190, /* (293) cmd ::= ALTER TABLE fullname DROP kwcolumn_opt nm */ + 296, /* (294) add_column_fullname ::= fullname */ + 190, /* (295) cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm */ + 190, /* (296) cmd ::= create_vtab */ + 190, /* (297) cmd ::= create_vtab LP vtabarglist RP */ + 298, /* (298) create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm */ + 300, /* (299) vtabarg ::= */ + 301, /* (300) vtabargtoken ::= ANY */ + 301, /* (301) vtabargtoken ::= lp anylist RP */ + 302, /* (302) lp ::= LP */ + 266, /* (303) with ::= WITH wqlist */ + 266, /* (304) with ::= WITH RECURSIVE wqlist */ + 305, /* (305) wqas ::= AS */ + 305, /* (306) wqas ::= AS MATERIALIZED */ + 305, /* (307) wqas ::= AS NOT MATERIALIZED */ + 304, /* (308) wqitem ::= nm eidlist_opt wqas LP select RP */ + 241, /* (309) wqlist ::= wqitem */ + 241, /* (310) wqlist ::= wqlist COMMA wqitem */ + 306, /* (311) windowdefn_list ::= windowdefn_list COMMA windowdefn */ + 307, /* (312) windowdefn ::= nm AS LP window RP */ + 308, /* (313) window ::= PARTITION BY nexprlist orderby_opt frame_opt */ + 308, /* (314) window ::= nm PARTITION BY nexprlist orderby_opt frame_opt */ + 308, /* (315) window ::= ORDER BY sortlist frame_opt */ + 308, /* (316) window ::= nm ORDER BY sortlist frame_opt */ 308, /* (317) window ::= nm frame_opt */ 309, /* (318) frame_opt ::= */ 309, /* (319) frame_opt ::= range_or_rows frame_bound_s frame_exclude_opt */ @@ -164479,53 +173993,56 @@ static const YYCODETYPE yyRuleInfoLhs[] = { 203, /* (352) table_option_set ::= table_option */ 201, /* (353) columnlist ::= columnlist COMMA columnname carglist */ 201, /* (354) columnlist ::= columnname carglist */ - 193, /* (355) nm ::= ID|INDEXED */ + 193, /* (355) nm ::= ID|INDEXED|JOIN_KW */ 193, /* (356) nm ::= STRING */ - 193, /* (357) nm ::= JOIN_KW */ - 208, /* (358) typetoken ::= typename */ - 209, /* (359) typename ::= ID|STRING */ - 210, /* (360) signed ::= plus_num */ - 210, /* (361) signed ::= minus_num */ - 207, /* (362) carglist ::= carglist ccons */ - 207, /* (363) carglist ::= */ - 215, /* (364) ccons ::= NULL onconf */ - 215, /* (365) ccons ::= GENERATED ALWAYS AS generated */ - 215, /* (366) ccons ::= AS generated */ - 202, /* (367) conslist_opt ::= COMMA conslist */ - 228, /* (368) conslist ::= conslist tconscomma tcons */ - 228, /* (369) conslist ::= tcons */ - 229, /* (370) tconscomma ::= */ - 233, /* (371) defer_subclause_opt ::= defer_subclause */ - 235, /* (372) resolvetype ::= raisetype */ - 239, /* (373) selectnowith ::= oneselect */ - 240, /* (374) oneselect ::= values */ - 254, /* (375) sclp ::= selcollist COMMA */ - 255, /* (376) as ::= ID|STRING */ + 208, /* (357) typetoken ::= typename */ + 209, /* (358) typename ::= ID|STRING */ + 210, /* (359) signed ::= plus_num */ + 210, /* (360) signed ::= minus_num */ + 207, /* (361) carglist ::= carglist ccons */ + 207, /* (362) carglist ::= */ + 215, /* (363) ccons ::= NULL onconf */ + 215, /* (364) ccons ::= GENERATED ALWAYS AS generated */ + 215, /* (365) ccons ::= AS generated */ + 202, /* (366) conslist_opt ::= COMMA conslist */ + 228, /* (367) conslist ::= conslist tconscomma tcons */ + 228, /* (368) conslist ::= tcons */ + 229, /* (369) tconscomma ::= */ + 233, /* (370) defer_subclause_opt ::= defer_subclause */ + 235, /* (371) resolvetype ::= raisetype */ + 239, /* (372) selectnowith ::= oneselect */ + 240, /* (373) oneselect ::= values */ + 254, /* (374) sclp ::= selcollist COMMA */ + 255, /* (375) as ::= ID|STRING */ + 264, /* (376) indexed_opt ::= indexed_by */ 272, /* (377) returning ::= */ 217, /* (378) expr ::= term */ 274, /* (379) likeop ::= LIKE_KW|MATCH */ - 262, /* (380) exprlist ::= nexprlist */ - 284, /* (381) nmnum ::= plus_num */ - 284, /* (382) nmnum ::= nm */ - 284, /* (383) nmnum ::= ON */ - 284, /* (384) nmnum ::= DELETE */ - 284, /* (385) nmnum ::= DEFAULT */ - 211, /* (386) plus_num ::= INTEGER|FLOAT */ - 289, /* (387) foreach_clause ::= */ - 289, /* (388) foreach_clause ::= FOR EACH ROW */ - 292, /* (389) trnm ::= nm */ - 293, /* (390) tridxby ::= */ - 294, /* (391) database_kw_opt ::= DATABASE */ - 294, /* (392) database_kw_opt ::= */ - 297, /* (393) kwcolumn_opt ::= */ - 297, /* (394) kwcolumn_opt ::= COLUMNKW */ - 299, /* (395) vtabarglist ::= vtabarg */ - 299, /* (396) vtabarglist ::= vtabarglist COMMA vtabarg */ - 300, /* (397) vtabarg ::= vtabarg vtabargtoken */ - 303, /* (398) anylist ::= */ - 303, /* (399) anylist ::= anylist LP anylist RP */ - 303, /* (400) anylist ::= anylist ANY */ - 266, /* (401) with ::= */ + 278, /* (380) case_operand ::= expr */ + 261, /* (381) exprlist ::= nexprlist */ + 284, /* (382) nmnum ::= plus_num */ + 284, /* (383) nmnum ::= nm */ + 284, /* (384) nmnum ::= ON */ + 284, /* (385) nmnum ::= DELETE */ + 284, /* (386) nmnum ::= DEFAULT */ + 211, /* (387) plus_num ::= INTEGER|FLOAT */ + 289, /* (388) foreach_clause ::= */ + 289, /* (389) foreach_clause ::= FOR EACH ROW */ + 292, /* (390) trnm ::= nm */ + 293, /* (391) tridxby ::= */ + 294, /* (392) database_kw_opt ::= DATABASE */ + 294, /* (393) database_kw_opt ::= */ + 297, /* (394) kwcolumn_opt ::= */ + 297, /* (395) kwcolumn_opt ::= COLUMNKW */ + 299, /* (396) vtabarglist ::= vtabarg */ + 299, /* (397) vtabarglist ::= vtabarglist COMMA vtabarg */ + 300, /* (398) vtabarg ::= vtabarg vtabargtoken */ + 303, /* (399) anylist ::= */ + 303, /* (400) anylist ::= anylist LP anylist RP */ + 303, /* (401) anylist ::= anylist ANY */ + 266, /* (402) with ::= */ + 306, /* (403) windowdefn_list ::= windowdefn */ + 308, /* (404) window ::= frame_opt */ }; /* For rule J, yyRuleInfoNRhs[J] contains the negative of the number @@ -164640,29 +174157,29 @@ static const signed char yyRuleInfoNRhs[] = { -2, /* (106) from ::= FROM seltablist */ -2, /* (107) stl_prefix ::= seltablist joinop */ 0, /* (108) stl_prefix ::= */ - -7, /* (109) seltablist ::= stl_prefix nm dbnm as indexed_opt on_opt using_opt */ - -9, /* (110) seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_opt using_opt */ - -7, /* (111) seltablist ::= stl_prefix LP select RP as on_opt using_opt */ - -7, /* (112) seltablist ::= stl_prefix LP seltablist RP as on_opt using_opt */ - 0, /* (113) dbnm ::= */ - -2, /* (114) dbnm ::= DOT nm */ - -1, /* (115) fullname ::= nm */ - -3, /* (116) fullname ::= nm DOT nm */ - -1, /* (117) xfullname ::= nm */ - -3, /* (118) xfullname ::= nm DOT nm */ - -5, /* (119) xfullname ::= nm DOT nm AS nm */ - -3, /* (120) xfullname ::= nm AS nm */ - -1, /* (121) joinop ::= COMMA|JOIN */ - -2, /* (122) joinop ::= JOIN_KW JOIN */ - -3, /* (123) joinop ::= JOIN_KW nm JOIN */ - -4, /* (124) joinop ::= JOIN_KW nm nm JOIN */ - -2, /* (125) on_opt ::= ON expr */ - 0, /* (126) on_opt ::= */ - 0, /* (127) indexed_opt ::= */ - -3, /* (128) indexed_opt ::= INDEXED BY nm */ - -2, /* (129) indexed_opt ::= NOT INDEXED */ - -4, /* (130) using_opt ::= USING LP idlist RP */ - 0, /* (131) using_opt ::= */ + -5, /* (109) seltablist ::= stl_prefix nm dbnm as on_using */ + -6, /* (110) seltablist ::= stl_prefix nm dbnm as indexed_by on_using */ + -8, /* (111) seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_using */ + -6, /* (112) seltablist ::= stl_prefix LP select RP as on_using */ + -6, /* (113) seltablist ::= stl_prefix LP seltablist RP as on_using */ + 0, /* (114) dbnm ::= */ + -2, /* (115) dbnm ::= DOT nm */ + -1, /* (116) fullname ::= nm */ + -3, /* (117) fullname ::= nm DOT nm */ + -1, /* (118) xfullname ::= nm */ + -3, /* (119) xfullname ::= nm DOT nm */ + -5, /* (120) xfullname ::= nm DOT nm AS nm */ + -3, /* (121) xfullname ::= nm AS nm */ + -1, /* (122) joinop ::= COMMA|JOIN */ + -2, /* (123) joinop ::= JOIN_KW JOIN */ + -3, /* (124) joinop ::= JOIN_KW nm JOIN */ + -4, /* (125) joinop ::= JOIN_KW nm nm JOIN */ + -2, /* (126) on_using ::= ON expr */ + -4, /* (127) on_using ::= USING LP idlist RP */ + 0, /* (128) on_using ::= */ + 0, /* (129) indexed_opt ::= */ + -3, /* (130) indexed_by ::= INDEXED BY nm */ + -2, /* (131) indexed_by ::= NOT INDEXED */ 0, /* (132) orderby_opt ::= */ -3, /* (133) orderby_opt ::= ORDER BY sortlist */ -5, /* (134) sortlist ::= sortlist COMMA expr sortorder nulls */ @@ -164709,145 +174226,145 @@ static const signed char yyRuleInfoNRhs[] = { -3, /* (175) idlist ::= idlist COMMA nm */ -1, /* (176) idlist ::= nm */ -3, /* (177) expr ::= LP expr RP */ - -1, /* (178) expr ::= ID|INDEXED */ - -1, /* (179) expr ::= JOIN_KW */ - -3, /* (180) expr ::= nm DOT nm */ - -5, /* (181) expr ::= nm DOT nm DOT nm */ - -1, /* (182) term ::= NULL|FLOAT|BLOB */ - -1, /* (183) term ::= STRING */ - -1, /* (184) term ::= INTEGER */ - -1, /* (185) expr ::= VARIABLE */ - -3, /* (186) expr ::= expr COLLATE ID|STRING */ - -6, /* (187) expr ::= CAST LP expr AS typetoken RP */ - -5, /* (188) expr ::= ID|INDEXED LP distinct exprlist RP */ - -4, /* (189) expr ::= ID|INDEXED LP STAR RP */ - -6, /* (190) expr ::= ID|INDEXED LP distinct exprlist RP filter_over */ - -5, /* (191) expr ::= ID|INDEXED LP STAR RP filter_over */ - -1, /* (192) term ::= CTIME_KW */ - -5, /* (193) expr ::= LP nexprlist COMMA expr RP */ - -3, /* (194) expr ::= expr AND expr */ - -3, /* (195) expr ::= expr OR expr */ - -3, /* (196) expr ::= expr LT|GT|GE|LE expr */ - -3, /* (197) expr ::= expr EQ|NE expr */ - -3, /* (198) expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr */ - -3, /* (199) expr ::= expr PLUS|MINUS expr */ - -3, /* (200) expr ::= expr STAR|SLASH|REM expr */ - -3, /* (201) expr ::= expr CONCAT expr */ - -2, /* (202) likeop ::= NOT LIKE_KW|MATCH */ - -3, /* (203) expr ::= expr likeop expr */ - -5, /* (204) expr ::= expr likeop expr ESCAPE expr */ - -2, /* (205) expr ::= expr ISNULL|NOTNULL */ - -3, /* (206) expr ::= expr NOT NULL */ - -3, /* (207) expr ::= expr IS expr */ - -4, /* (208) expr ::= expr IS NOT expr */ - -2, /* (209) expr ::= NOT expr */ - -2, /* (210) expr ::= BITNOT expr */ - -2, /* (211) expr ::= PLUS|MINUS expr */ - -3, /* (212) expr ::= expr PTR expr */ - -1, /* (213) between_op ::= BETWEEN */ - -2, /* (214) between_op ::= NOT BETWEEN */ - -5, /* (215) expr ::= expr between_op expr AND expr */ - -1, /* (216) in_op ::= IN */ - -2, /* (217) in_op ::= NOT IN */ - -5, /* (218) expr ::= expr in_op LP exprlist RP */ - -3, /* (219) expr ::= LP select RP */ - -5, /* (220) expr ::= expr in_op LP select RP */ - -5, /* (221) expr ::= expr in_op nm dbnm paren_exprlist */ - -4, /* (222) expr ::= EXISTS LP select RP */ - -5, /* (223) expr ::= CASE case_operand case_exprlist case_else END */ - -5, /* (224) case_exprlist ::= case_exprlist WHEN expr THEN expr */ - -4, /* (225) case_exprlist ::= WHEN expr THEN expr */ - -2, /* (226) case_else ::= ELSE expr */ - 0, /* (227) case_else ::= */ - -1, /* (228) case_operand ::= expr */ - 0, /* (229) case_operand ::= */ - 0, /* (230) exprlist ::= */ - -3, /* (231) nexprlist ::= nexprlist COMMA expr */ - -1, /* (232) nexprlist ::= expr */ - 0, /* (233) paren_exprlist ::= */ - -3, /* (234) paren_exprlist ::= LP exprlist RP */ - -12, /* (235) cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt */ - -1, /* (236) uniqueflag ::= UNIQUE */ - 0, /* (237) uniqueflag ::= */ - 0, /* (238) eidlist_opt ::= */ - -3, /* (239) eidlist_opt ::= LP eidlist RP */ - -5, /* (240) eidlist ::= eidlist COMMA nm collate sortorder */ - -3, /* (241) eidlist ::= nm collate sortorder */ - 0, /* (242) collate ::= */ - -2, /* (243) collate ::= COLLATE ID|STRING */ - -4, /* (244) cmd ::= DROP INDEX ifexists fullname */ - -2, /* (245) cmd ::= VACUUM vinto */ - -3, /* (246) cmd ::= VACUUM nm vinto */ - -2, /* (247) vinto ::= INTO expr */ - 0, /* (248) vinto ::= */ - -3, /* (249) cmd ::= PRAGMA nm dbnm */ - -5, /* (250) cmd ::= PRAGMA nm dbnm EQ nmnum */ - -6, /* (251) cmd ::= PRAGMA nm dbnm LP nmnum RP */ - -5, /* (252) cmd ::= PRAGMA nm dbnm EQ minus_num */ - -6, /* (253) cmd ::= PRAGMA nm dbnm LP minus_num RP */ - -2, /* (254) plus_num ::= PLUS INTEGER|FLOAT */ - -2, /* (255) minus_num ::= MINUS INTEGER|FLOAT */ - -5, /* (256) cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END */ - -11, /* (257) trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause */ - -1, /* (258) trigger_time ::= BEFORE|AFTER */ - -2, /* (259) trigger_time ::= INSTEAD OF */ - 0, /* (260) trigger_time ::= */ - -1, /* (261) trigger_event ::= DELETE|INSERT */ - -1, /* (262) trigger_event ::= UPDATE */ - -3, /* (263) trigger_event ::= UPDATE OF idlist */ - 0, /* (264) when_clause ::= */ - -2, /* (265) when_clause ::= WHEN expr */ - -3, /* (266) trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI */ - -2, /* (267) trigger_cmd_list ::= trigger_cmd SEMI */ - -3, /* (268) trnm ::= nm DOT nm */ - -3, /* (269) tridxby ::= INDEXED BY nm */ - -2, /* (270) tridxby ::= NOT INDEXED */ - -9, /* (271) trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist from where_opt scanpt */ - -8, /* (272) trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt */ - -6, /* (273) trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt */ - -3, /* (274) trigger_cmd ::= scanpt select scanpt */ - -4, /* (275) expr ::= RAISE LP IGNORE RP */ - -6, /* (276) expr ::= RAISE LP raisetype COMMA nm RP */ - -1, /* (277) raisetype ::= ROLLBACK */ - -1, /* (278) raisetype ::= ABORT */ - -1, /* (279) raisetype ::= FAIL */ - -4, /* (280) cmd ::= DROP TRIGGER ifexists fullname */ - -6, /* (281) cmd ::= ATTACH database_kw_opt expr AS expr key_opt */ - -3, /* (282) cmd ::= DETACH database_kw_opt expr */ - 0, /* (283) key_opt ::= */ - -2, /* (284) key_opt ::= KEY expr */ - -1, /* (285) cmd ::= REINDEX */ - -3, /* (286) cmd ::= REINDEX nm dbnm */ - -1, /* (287) cmd ::= ANALYZE */ - -3, /* (288) cmd ::= ANALYZE nm dbnm */ - -6, /* (289) cmd ::= ALTER TABLE fullname RENAME TO nm */ - -7, /* (290) cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist */ - -6, /* (291) cmd ::= ALTER TABLE fullname DROP kwcolumn_opt nm */ - -1, /* (292) add_column_fullname ::= fullname */ - -8, /* (293) cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm */ - -1, /* (294) cmd ::= create_vtab */ - -4, /* (295) cmd ::= create_vtab LP vtabarglist RP */ - -8, /* (296) create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm */ - 0, /* (297) vtabarg ::= */ - -1, /* (298) vtabargtoken ::= ANY */ - -3, /* (299) vtabargtoken ::= lp anylist RP */ - -1, /* (300) lp ::= LP */ - -2, /* (301) with ::= WITH wqlist */ - -3, /* (302) with ::= WITH RECURSIVE wqlist */ - -1, /* (303) wqas ::= AS */ - -2, /* (304) wqas ::= AS MATERIALIZED */ - -3, /* (305) wqas ::= AS NOT MATERIALIZED */ - -6, /* (306) wqitem ::= nm eidlist_opt wqas LP select RP */ - -1, /* (307) wqlist ::= wqitem */ - -3, /* (308) wqlist ::= wqlist COMMA wqitem */ - -1, /* (309) windowdefn_list ::= windowdefn */ - -3, /* (310) windowdefn_list ::= windowdefn_list COMMA windowdefn */ - -5, /* (311) windowdefn ::= nm AS LP window RP */ - -5, /* (312) window ::= PARTITION BY nexprlist orderby_opt frame_opt */ - -6, /* (313) window ::= nm PARTITION BY nexprlist orderby_opt frame_opt */ - -4, /* (314) window ::= ORDER BY sortlist frame_opt */ - -5, /* (315) window ::= nm ORDER BY sortlist frame_opt */ - -1, /* (316) window ::= frame_opt */ + -1, /* (178) expr ::= ID|INDEXED|JOIN_KW */ + -3, /* (179) expr ::= nm DOT nm */ + -5, /* (180) expr ::= nm DOT nm DOT nm */ + -1, /* (181) term ::= NULL|FLOAT|BLOB */ + -1, /* (182) term ::= STRING */ + -1, /* (183) term ::= INTEGER */ + -1, /* (184) expr ::= VARIABLE */ + -3, /* (185) expr ::= expr COLLATE ID|STRING */ + -6, /* (186) expr ::= CAST LP expr AS typetoken RP */ + -5, /* (187) expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist RP */ + -8, /* (188) expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist ORDER BY sortlist RP */ + -4, /* (189) expr ::= ID|INDEXED|JOIN_KW LP STAR RP */ + -6, /* (190) expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist RP filter_over */ + -9, /* (191) expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist ORDER BY sortlist RP filter_over */ + -5, /* (192) expr ::= ID|INDEXED|JOIN_KW LP STAR RP filter_over */ + -1, /* (193) term ::= CTIME_KW */ + -5, /* (194) expr ::= LP nexprlist COMMA expr RP */ + -3, /* (195) expr ::= expr AND expr */ + -3, /* (196) expr ::= expr OR expr */ + -3, /* (197) expr ::= expr LT|GT|GE|LE expr */ + -3, /* (198) expr ::= expr EQ|NE expr */ + -3, /* (199) expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr */ + -3, /* (200) expr ::= expr PLUS|MINUS expr */ + -3, /* (201) expr ::= expr STAR|SLASH|REM expr */ + -3, /* (202) expr ::= expr CONCAT expr */ + -2, /* (203) likeop ::= NOT LIKE_KW|MATCH */ + -3, /* (204) expr ::= expr likeop expr */ + -5, /* (205) expr ::= expr likeop expr ESCAPE expr */ + -2, /* (206) expr ::= expr ISNULL|NOTNULL */ + -3, /* (207) expr ::= expr NOT NULL */ + -3, /* (208) expr ::= expr IS expr */ + -4, /* (209) expr ::= expr IS NOT expr */ + -6, /* (210) expr ::= expr IS NOT DISTINCT FROM expr */ + -5, /* (211) expr ::= expr IS DISTINCT FROM expr */ + -2, /* (212) expr ::= NOT expr */ + -2, /* (213) expr ::= BITNOT expr */ + -2, /* (214) expr ::= PLUS|MINUS expr */ + -3, /* (215) expr ::= expr PTR expr */ + -1, /* (216) between_op ::= BETWEEN */ + -2, /* (217) between_op ::= NOT BETWEEN */ + -5, /* (218) expr ::= expr between_op expr AND expr */ + -1, /* (219) in_op ::= IN */ + -2, /* (220) in_op ::= NOT IN */ + -5, /* (221) expr ::= expr in_op LP exprlist RP */ + -3, /* (222) expr ::= LP select RP */ + -5, /* (223) expr ::= expr in_op LP select RP */ + -5, /* (224) expr ::= expr in_op nm dbnm paren_exprlist */ + -4, /* (225) expr ::= EXISTS LP select RP */ + -5, /* (226) expr ::= CASE case_operand case_exprlist case_else END */ + -5, /* (227) case_exprlist ::= case_exprlist WHEN expr THEN expr */ + -4, /* (228) case_exprlist ::= WHEN expr THEN expr */ + -2, /* (229) case_else ::= ELSE expr */ + 0, /* (230) case_else ::= */ + 0, /* (231) case_operand ::= */ + 0, /* (232) exprlist ::= */ + -3, /* (233) nexprlist ::= nexprlist COMMA expr */ + -1, /* (234) nexprlist ::= expr */ + 0, /* (235) paren_exprlist ::= */ + -3, /* (236) paren_exprlist ::= LP exprlist RP */ + -12, /* (237) cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt */ + -1, /* (238) uniqueflag ::= UNIQUE */ + 0, /* (239) uniqueflag ::= */ + 0, /* (240) eidlist_opt ::= */ + -3, /* (241) eidlist_opt ::= LP eidlist RP */ + -5, /* (242) eidlist ::= eidlist COMMA nm collate sortorder */ + -3, /* (243) eidlist ::= nm collate sortorder */ + 0, /* (244) collate ::= */ + -2, /* (245) collate ::= COLLATE ID|STRING */ + -4, /* (246) cmd ::= DROP INDEX ifexists fullname */ + -2, /* (247) cmd ::= VACUUM vinto */ + -3, /* (248) cmd ::= VACUUM nm vinto */ + -2, /* (249) vinto ::= INTO expr */ + 0, /* (250) vinto ::= */ + -3, /* (251) cmd ::= PRAGMA nm dbnm */ + -5, /* (252) cmd ::= PRAGMA nm dbnm EQ nmnum */ + -6, /* (253) cmd ::= PRAGMA nm dbnm LP nmnum RP */ + -5, /* (254) cmd ::= PRAGMA nm dbnm EQ minus_num */ + -6, /* (255) cmd ::= PRAGMA nm dbnm LP minus_num RP */ + -2, /* (256) plus_num ::= PLUS INTEGER|FLOAT */ + -2, /* (257) minus_num ::= MINUS INTEGER|FLOAT */ + -5, /* (258) cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END */ + -11, /* (259) trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause */ + -1, /* (260) trigger_time ::= BEFORE|AFTER */ + -2, /* (261) trigger_time ::= INSTEAD OF */ + 0, /* (262) trigger_time ::= */ + -1, /* (263) trigger_event ::= DELETE|INSERT */ + -1, /* (264) trigger_event ::= UPDATE */ + -3, /* (265) trigger_event ::= UPDATE OF idlist */ + 0, /* (266) when_clause ::= */ + -2, /* (267) when_clause ::= WHEN expr */ + -3, /* (268) trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI */ + -2, /* (269) trigger_cmd_list ::= trigger_cmd SEMI */ + -3, /* (270) trnm ::= nm DOT nm */ + -3, /* (271) tridxby ::= INDEXED BY nm */ + -2, /* (272) tridxby ::= NOT INDEXED */ + -9, /* (273) trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist from where_opt scanpt */ + -8, /* (274) trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt */ + -6, /* (275) trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt */ + -3, /* (276) trigger_cmd ::= scanpt select scanpt */ + -4, /* (277) expr ::= RAISE LP IGNORE RP */ + -6, /* (278) expr ::= RAISE LP raisetype COMMA nm RP */ + -1, /* (279) raisetype ::= ROLLBACK */ + -1, /* (280) raisetype ::= ABORT */ + -1, /* (281) raisetype ::= FAIL */ + -4, /* (282) cmd ::= DROP TRIGGER ifexists fullname */ + -6, /* (283) cmd ::= ATTACH database_kw_opt expr AS expr key_opt */ + -3, /* (284) cmd ::= DETACH database_kw_opt expr */ + 0, /* (285) key_opt ::= */ + -2, /* (286) key_opt ::= KEY expr */ + -1, /* (287) cmd ::= REINDEX */ + -3, /* (288) cmd ::= REINDEX nm dbnm */ + -1, /* (289) cmd ::= ANALYZE */ + -3, /* (290) cmd ::= ANALYZE nm dbnm */ + -6, /* (291) cmd ::= ALTER TABLE fullname RENAME TO nm */ + -7, /* (292) cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist */ + -6, /* (293) cmd ::= ALTER TABLE fullname DROP kwcolumn_opt nm */ + -1, /* (294) add_column_fullname ::= fullname */ + -8, /* (295) cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm */ + -1, /* (296) cmd ::= create_vtab */ + -4, /* (297) cmd ::= create_vtab LP vtabarglist RP */ + -8, /* (298) create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm */ + 0, /* (299) vtabarg ::= */ + -1, /* (300) vtabargtoken ::= ANY */ + -3, /* (301) vtabargtoken ::= lp anylist RP */ + -1, /* (302) lp ::= LP */ + -2, /* (303) with ::= WITH wqlist */ + -3, /* (304) with ::= WITH RECURSIVE wqlist */ + -1, /* (305) wqas ::= AS */ + -2, /* (306) wqas ::= AS MATERIALIZED */ + -3, /* (307) wqas ::= AS NOT MATERIALIZED */ + -6, /* (308) wqitem ::= nm eidlist_opt wqas LP select RP */ + -1, /* (309) wqlist ::= wqitem */ + -3, /* (310) wqlist ::= wqlist COMMA wqitem */ + -3, /* (311) windowdefn_list ::= windowdefn_list COMMA windowdefn */ + -5, /* (312) windowdefn ::= nm AS LP window RP */ + -5, /* (313) window ::= PARTITION BY nexprlist orderby_opt frame_opt */ + -6, /* (314) window ::= nm PARTITION BY nexprlist orderby_opt frame_opt */ + -4, /* (315) window ::= ORDER BY sortlist frame_opt */ + -5, /* (316) window ::= nm ORDER BY sortlist frame_opt */ -2, /* (317) window ::= nm frame_opt */ 0, /* (318) frame_opt ::= */ -3, /* (319) frame_opt ::= range_or_rows frame_bound_s frame_exclude_opt */ @@ -164886,53 +174403,56 @@ static const signed char yyRuleInfoNRhs[] = { -1, /* (352) table_option_set ::= table_option */ -4, /* (353) columnlist ::= columnlist COMMA columnname carglist */ -2, /* (354) columnlist ::= columnname carglist */ - -1, /* (355) nm ::= ID|INDEXED */ + -1, /* (355) nm ::= ID|INDEXED|JOIN_KW */ -1, /* (356) nm ::= STRING */ - -1, /* (357) nm ::= JOIN_KW */ - -1, /* (358) typetoken ::= typename */ - -1, /* (359) typename ::= ID|STRING */ - -1, /* (360) signed ::= plus_num */ - -1, /* (361) signed ::= minus_num */ - -2, /* (362) carglist ::= carglist ccons */ - 0, /* (363) carglist ::= */ - -2, /* (364) ccons ::= NULL onconf */ - -4, /* (365) ccons ::= GENERATED ALWAYS AS generated */ - -2, /* (366) ccons ::= AS generated */ - -2, /* (367) conslist_opt ::= COMMA conslist */ - -3, /* (368) conslist ::= conslist tconscomma tcons */ - -1, /* (369) conslist ::= tcons */ - 0, /* (370) tconscomma ::= */ - -1, /* (371) defer_subclause_opt ::= defer_subclause */ - -1, /* (372) resolvetype ::= raisetype */ - -1, /* (373) selectnowith ::= oneselect */ - -1, /* (374) oneselect ::= values */ - -2, /* (375) sclp ::= selcollist COMMA */ - -1, /* (376) as ::= ID|STRING */ + -1, /* (357) typetoken ::= typename */ + -1, /* (358) typename ::= ID|STRING */ + -1, /* (359) signed ::= plus_num */ + -1, /* (360) signed ::= minus_num */ + -2, /* (361) carglist ::= carglist ccons */ + 0, /* (362) carglist ::= */ + -2, /* (363) ccons ::= NULL onconf */ + -4, /* (364) ccons ::= GENERATED ALWAYS AS generated */ + -2, /* (365) ccons ::= AS generated */ + -2, /* (366) conslist_opt ::= COMMA conslist */ + -3, /* (367) conslist ::= conslist tconscomma tcons */ + -1, /* (368) conslist ::= tcons */ + 0, /* (369) tconscomma ::= */ + -1, /* (370) defer_subclause_opt ::= defer_subclause */ + -1, /* (371) resolvetype ::= raisetype */ + -1, /* (372) selectnowith ::= oneselect */ + -1, /* (373) oneselect ::= values */ + -2, /* (374) sclp ::= selcollist COMMA */ + -1, /* (375) as ::= ID|STRING */ + -1, /* (376) indexed_opt ::= indexed_by */ 0, /* (377) returning ::= */ -1, /* (378) expr ::= term */ -1, /* (379) likeop ::= LIKE_KW|MATCH */ - -1, /* (380) exprlist ::= nexprlist */ - -1, /* (381) nmnum ::= plus_num */ - -1, /* (382) nmnum ::= nm */ - -1, /* (383) nmnum ::= ON */ - -1, /* (384) nmnum ::= DELETE */ - -1, /* (385) nmnum ::= DEFAULT */ - -1, /* (386) plus_num ::= INTEGER|FLOAT */ - 0, /* (387) foreach_clause ::= */ - -3, /* (388) foreach_clause ::= FOR EACH ROW */ - -1, /* (389) trnm ::= nm */ - 0, /* (390) tridxby ::= */ - -1, /* (391) database_kw_opt ::= DATABASE */ - 0, /* (392) database_kw_opt ::= */ - 0, /* (393) kwcolumn_opt ::= */ - -1, /* (394) kwcolumn_opt ::= COLUMNKW */ - -1, /* (395) vtabarglist ::= vtabarg */ - -3, /* (396) vtabarglist ::= vtabarglist COMMA vtabarg */ - -2, /* (397) vtabarg ::= vtabarg vtabargtoken */ - 0, /* (398) anylist ::= */ - -4, /* (399) anylist ::= anylist LP anylist RP */ - -2, /* (400) anylist ::= anylist ANY */ - 0, /* (401) with ::= */ + -1, /* (380) case_operand ::= expr */ + -1, /* (381) exprlist ::= nexprlist */ + -1, /* (382) nmnum ::= plus_num */ + -1, /* (383) nmnum ::= nm */ + -1, /* (384) nmnum ::= ON */ + -1, /* (385) nmnum ::= DELETE */ + -1, /* (386) nmnum ::= DEFAULT */ + -1, /* (387) plus_num ::= INTEGER|FLOAT */ + 0, /* (388) foreach_clause ::= */ + -3, /* (389) foreach_clause ::= FOR EACH ROW */ + -1, /* (390) trnm ::= nm */ + 0, /* (391) tridxby ::= */ + -1, /* (392) database_kw_opt ::= DATABASE */ + 0, /* (393) database_kw_opt ::= */ + 0, /* (394) kwcolumn_opt ::= */ + -1, /* (395) kwcolumn_opt ::= COLUMNKW */ + -1, /* (396) vtabarglist ::= vtabarg */ + -3, /* (397) vtabarglist ::= vtabarglist COMMA vtabarg */ + -2, /* (398) vtabarg ::= vtabarg vtabargtoken */ + 0, /* (399) anylist ::= */ + -4, /* (400) anylist ::= anylist LP anylist RP */ + -2, /* (401) anylist ::= anylist ANY */ + 0, /* (402) with ::= */ + -1, /* (403) windowdefn_list ::= windowdefn */ + -1, /* (404) window ::= frame_opt */ }; static void yy_accept(yyParser*); /* Forward Declaration */ @@ -164975,10 +174495,10 @@ static YYACTIONTYPE yy_reduce( /********** Begin reduce actions **********************************************/ YYMINORTYPE yylhsminor; case 0: /* explain ::= EXPLAIN */ -{ pParse->explain = 1; } +{ if( pParse->pReprepare==0 ) pParse->explain = 1; } break; case 1: /* explain ::= EXPLAIN QUERY PLAN */ -{ pParse->explain = 2; } +{ if( pParse->pReprepare==0 ) pParse->explain = 2; } break; case 2: /* cmdx ::= cmd */ { sqlite3FinishCoding(pParse); } @@ -165029,7 +174549,7 @@ static YYACTIONTYPE yy_reduce( case 72: /* defer_subclause_opt ::= */ yytestcase(yyruleno==72); case 81: /* ifexists ::= */ yytestcase(yyruleno==81); case 98: /* distinct ::= */ yytestcase(yyruleno==98); - case 242: /* collate ::= */ yytestcase(yyruleno==242); + case 244: /* collate ::= */ yytestcase(yyruleno==244); {yymsp[1].minor.yy394 = 0;} break; case 16: /* ifnotexists ::= IF NOT EXISTS */ @@ -165213,9 +174733,9 @@ static YYACTIONTYPE yy_reduce( break; case 63: /* init_deferred_pred_opt ::= INITIALLY DEFERRED */ case 80: /* ifexists ::= IF EXISTS */ yytestcase(yyruleno==80); - case 214: /* between_op ::= NOT BETWEEN */ yytestcase(yyruleno==214); - case 217: /* in_op ::= NOT IN */ yytestcase(yyruleno==217); - case 243: /* collate ::= COLLATE ID|STRING */ yytestcase(yyruleno==243); + case 217: /* between_op ::= NOT BETWEEN */ yytestcase(yyruleno==217); + case 220: /* in_op ::= NOT IN */ yytestcase(yyruleno==220); + case 245: /* collate ::= COLLATE ID|STRING */ yytestcase(yyruleno==245); {yymsp[-1].minor.yy394 = 1;} break; case 64: /* init_deferred_pred_opt ::= INITIALLY IMMEDIATE */ @@ -165288,7 +174808,6 @@ static YYACTIONTYPE yy_reduce( if( p ){ parserDoubleLinkSelect(pParse, p); } - yymsp[0].minor.yy47 = p; /*A-overwrites-X*/ } break; case 88: /* selectnowith ::= selectnowith multiselect_op oneselect */ @@ -165300,7 +174819,7 @@ static YYACTIONTYPE yy_reduce( Token x; x.n = 0; parserDoubleLinkSelect(pParse, pRhs); - pFrom = sqlite3SrcListAppendFromTerm(pParse,0,0,0,&x,pRhs,0,0); + pFrom = sqlite3SrcListAppendFromTerm(pParse,0,0,0,&x,pRhs,0); pRhs = sqlite3SelectNew(pParse,0,pFrom,0,0,0,0,0,0); } if( pRhs ){ @@ -165365,9 +174884,9 @@ static YYACTIONTYPE yy_reduce( case 99: /* sclp ::= */ case 132: /* orderby_opt ::= */ yytestcase(yyruleno==132); case 142: /* groupby_opt ::= */ yytestcase(yyruleno==142); - case 230: /* exprlist ::= */ yytestcase(yyruleno==230); - case 233: /* paren_exprlist ::= */ yytestcase(yyruleno==233); - case 238: /* eidlist_opt ::= */ yytestcase(yyruleno==238); + case 232: /* exprlist ::= */ yytestcase(yyruleno==232); + case 235: /* paren_exprlist ::= */ yytestcase(yyruleno==235); + case 240: /* eidlist_opt ::= */ yytestcase(yyruleno==240); {yymsp[1].minor.yy322 = 0;} break; case 100: /* selcollist ::= sclp scanpt expr scanpt as */ @@ -165380,21 +174899,24 @@ static YYACTIONTYPE yy_reduce( case 101: /* selcollist ::= sclp scanpt STAR */ { Expr *p = sqlite3Expr(pParse->db, TK_ASTERISK, 0); + sqlite3ExprSetErrorOffset(p, (int)(yymsp[0].minor.yy0.z - pParse->zTail)); yymsp[-2].minor.yy322 = sqlite3ExprListAppend(pParse, yymsp[-2].minor.yy322, p); } break; case 102: /* selcollist ::= sclp scanpt nm DOT STAR */ { - Expr *pRight = sqlite3PExpr(pParse, TK_ASTERISK, 0, 0); - Expr *pLeft = tokenExpr(pParse, TK_ID, yymsp[-2].minor.yy0); - Expr *pDot = sqlite3PExpr(pParse, TK_DOT, pLeft, pRight); + Expr *pRight, *pLeft, *pDot; + pRight = sqlite3PExpr(pParse, TK_ASTERISK, 0, 0); + sqlite3ExprSetErrorOffset(pRight, (int)(yymsp[0].minor.yy0.z - pParse->zTail)); + pLeft = tokenExpr(pParse, TK_ID, yymsp[-2].minor.yy0); + pDot = sqlite3PExpr(pParse, TK_DOT, pLeft, pRight); yymsp[-4].minor.yy322 = sqlite3ExprListAppend(pParse,yymsp[-4].minor.yy322, pDot); } break; case 103: /* as ::= AS nm */ - case 114: /* dbnm ::= DOT nm */ yytestcase(yyruleno==114); - case 254: /* plus_num ::= PLUS INTEGER|FLOAT */ yytestcase(yyruleno==254); - case 255: /* minus_num ::= MINUS INTEGER|FLOAT */ yytestcase(yyruleno==255); + case 115: /* dbnm ::= DOT nm */ yytestcase(yyruleno==115); + case 256: /* plus_num ::= PLUS INTEGER|FLOAT */ yytestcase(yyruleno==256); + case 257: /* minus_num ::= MINUS INTEGER|FLOAT */ yytestcase(yyruleno==257); {yymsp[-1].minor.yy0 = yymsp[0].minor.yy0;} break; case 105: /* from ::= */ @@ -165404,7 +174926,7 @@ static YYACTIONTYPE yy_reduce( case 106: /* from ::= FROM seltablist */ { yymsp[-1].minor.yy131 = yymsp[0].minor.yy131; - sqlite3SrcListShiftJoinType(yymsp[-1].minor.yy131); + sqlite3SrcListShiftJoinType(pParse,yymsp[-1].minor.yy131); } break; case 107: /* stl_prefix ::= seltablist joinop */ @@ -165412,35 +174934,43 @@ static YYACTIONTYPE yy_reduce( if( ALWAYS(yymsp[-1].minor.yy131 && yymsp[-1].minor.yy131->nSrc>0) ) yymsp[-1].minor.yy131->a[yymsp[-1].minor.yy131->nSrc-1].fg.jointype = (u8)yymsp[0].minor.yy394; } break; - case 109: /* seltablist ::= stl_prefix nm dbnm as indexed_opt on_opt using_opt */ + case 109: /* seltablist ::= stl_prefix nm dbnm as on_using */ +{ + yymsp[-4].minor.yy131 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-4].minor.yy131,&yymsp[-3].minor.yy0,&yymsp[-2].minor.yy0,&yymsp[-1].minor.yy0,0,&yymsp[0].minor.yy561); +} + break; + case 110: /* seltablist ::= stl_prefix nm dbnm as indexed_by on_using */ { - yymsp[-6].minor.yy131 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy131,&yymsp[-5].minor.yy0,&yymsp[-4].minor.yy0,&yymsp[-3].minor.yy0,0,yymsp[-1].minor.yy528,yymsp[0].minor.yy254); - sqlite3SrcListIndexedBy(pParse, yymsp[-6].minor.yy131, &yymsp[-2].minor.yy0); + yymsp[-5].minor.yy131 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-5].minor.yy131,&yymsp[-4].minor.yy0,&yymsp[-3].minor.yy0,&yymsp[-2].minor.yy0,0,&yymsp[0].minor.yy561); + sqlite3SrcListIndexedBy(pParse, yymsp[-5].minor.yy131, &yymsp[-1].minor.yy0); } break; - case 110: /* seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_opt using_opt */ + case 111: /* seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_using */ { - yymsp[-8].minor.yy131 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-8].minor.yy131,&yymsp[-7].minor.yy0,&yymsp[-6].minor.yy0,&yymsp[-2].minor.yy0,0,yymsp[-1].minor.yy528,yymsp[0].minor.yy254); - sqlite3SrcListFuncArgs(pParse, yymsp[-8].minor.yy131, yymsp[-4].minor.yy322); + yymsp[-7].minor.yy131 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-7].minor.yy131,&yymsp[-6].minor.yy0,&yymsp[-5].minor.yy0,&yymsp[-1].minor.yy0,0,&yymsp[0].minor.yy561); + sqlite3SrcListFuncArgs(pParse, yymsp[-7].minor.yy131, yymsp[-3].minor.yy322); } break; - case 111: /* seltablist ::= stl_prefix LP select RP as on_opt using_opt */ + case 112: /* seltablist ::= stl_prefix LP select RP as on_using */ { - yymsp[-6].minor.yy131 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy131,0,0,&yymsp[-2].minor.yy0,yymsp[-4].minor.yy47,yymsp[-1].minor.yy528,yymsp[0].minor.yy254); + yymsp[-5].minor.yy131 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-5].minor.yy131,0,0,&yymsp[-1].minor.yy0,yymsp[-3].minor.yy47,&yymsp[0].minor.yy561); } break; - case 112: /* seltablist ::= stl_prefix LP seltablist RP as on_opt using_opt */ + case 113: /* seltablist ::= stl_prefix LP seltablist RP as on_using */ { - if( yymsp[-6].minor.yy131==0 && yymsp[-2].minor.yy0.n==0 && yymsp[-1].minor.yy528==0 && yymsp[0].minor.yy254==0 ){ - yymsp[-6].minor.yy131 = yymsp[-4].minor.yy131; - }else if( yymsp[-4].minor.yy131->nSrc==1 ){ - yymsp[-6].minor.yy131 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy131,0,0,&yymsp[-2].minor.yy0,0,yymsp[-1].minor.yy528,yymsp[0].minor.yy254); - if( yymsp[-6].minor.yy131 ){ - SrcItem *pNew = &yymsp[-6].minor.yy131->a[yymsp[-6].minor.yy131->nSrc-1]; - SrcItem *pOld = yymsp[-4].minor.yy131->a; + if( yymsp[-5].minor.yy131==0 && yymsp[-1].minor.yy0.n==0 && yymsp[0].minor.yy561.pOn==0 && yymsp[0].minor.yy561.pUsing==0 ){ + yymsp[-5].minor.yy131 = yymsp[-3].minor.yy131; + }else if( ALWAYS(yymsp[-3].minor.yy131!=0) && yymsp[-3].minor.yy131->nSrc==1 ){ + yymsp[-5].minor.yy131 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-5].minor.yy131,0,0,&yymsp[-1].minor.yy0,0,&yymsp[0].minor.yy561); + if( yymsp[-5].minor.yy131 ){ + SrcItem *pNew = &yymsp[-5].minor.yy131->a[yymsp[-5].minor.yy131->nSrc-1]; + SrcItem *pOld = yymsp[-3].minor.yy131->a; pNew->zName = pOld->zName; pNew->zDatabase = pOld->zDatabase; pNew->pSelect = pOld->pSelect; + if( pNew->pSelect && (pNew->pSelect->selFlags & SF_NestedFrom)!=0 ){ + pNew->fg.isNestedFrom = 1; + } if( pOld->fg.isTabFunc ){ pNew->u1.pFuncArg = pOld->u1.pFuncArg; pOld->u1.pFuncArg = 0; @@ -165450,94 +174980,78 @@ static YYACTIONTYPE yy_reduce( pOld->zName = pOld->zDatabase = 0; pOld->pSelect = 0; } - sqlite3SrcListDelete(pParse->db, yymsp[-4].minor.yy131); + sqlite3SrcListDelete(pParse->db, yymsp[-3].minor.yy131); }else{ Select *pSubquery; - sqlite3SrcListShiftJoinType(yymsp[-4].minor.yy131); - pSubquery = sqlite3SelectNew(pParse,0,yymsp[-4].minor.yy131,0,0,0,0,SF_NestedFrom,0); - yymsp[-6].minor.yy131 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy131,0,0,&yymsp[-2].minor.yy0,pSubquery,yymsp[-1].minor.yy528,yymsp[0].minor.yy254); + sqlite3SrcListShiftJoinType(pParse,yymsp[-3].minor.yy131); + pSubquery = sqlite3SelectNew(pParse,0,yymsp[-3].minor.yy131,0,0,0,0,SF_NestedFrom,0); + yymsp[-5].minor.yy131 = sqlite3SrcListAppendFromTerm(pParse,yymsp[-5].minor.yy131,0,0,&yymsp[-1].minor.yy0,pSubquery,&yymsp[0].minor.yy561); } } break; - case 113: /* dbnm ::= */ - case 127: /* indexed_opt ::= */ yytestcase(yyruleno==127); + case 114: /* dbnm ::= */ + case 129: /* indexed_opt ::= */ yytestcase(yyruleno==129); {yymsp[1].minor.yy0.z=0; yymsp[1].minor.yy0.n=0;} break; - case 115: /* fullname ::= nm */ + case 116: /* fullname ::= nm */ { yylhsminor.yy131 = sqlite3SrcListAppend(pParse,0,&yymsp[0].minor.yy0,0); if( IN_RENAME_OBJECT && yylhsminor.yy131 ) sqlite3RenameTokenMap(pParse, yylhsminor.yy131->a[0].zName, &yymsp[0].minor.yy0); } yymsp[0].minor.yy131 = yylhsminor.yy131; break; - case 116: /* fullname ::= nm DOT nm */ + case 117: /* fullname ::= nm DOT nm */ { yylhsminor.yy131 = sqlite3SrcListAppend(pParse,0,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0); if( IN_RENAME_OBJECT && yylhsminor.yy131 ) sqlite3RenameTokenMap(pParse, yylhsminor.yy131->a[0].zName, &yymsp[0].minor.yy0); } yymsp[-2].minor.yy131 = yylhsminor.yy131; break; - case 117: /* xfullname ::= nm */ + case 118: /* xfullname ::= nm */ {yymsp[0].minor.yy131 = sqlite3SrcListAppend(pParse,0,&yymsp[0].minor.yy0,0); /*A-overwrites-X*/} break; - case 118: /* xfullname ::= nm DOT nm */ + case 119: /* xfullname ::= nm DOT nm */ {yymsp[-2].minor.yy131 = sqlite3SrcListAppend(pParse,0,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0); /*A-overwrites-X*/} break; - case 119: /* xfullname ::= nm DOT nm AS nm */ + case 120: /* xfullname ::= nm DOT nm AS nm */ { yymsp[-4].minor.yy131 = sqlite3SrcListAppend(pParse,0,&yymsp[-4].minor.yy0,&yymsp[-2].minor.yy0); /*A-overwrites-X*/ if( yymsp[-4].minor.yy131 ) yymsp[-4].minor.yy131->a[0].zAlias = sqlite3NameFromToken(pParse->db, &yymsp[0].minor.yy0); } break; - case 120: /* xfullname ::= nm AS nm */ + case 121: /* xfullname ::= nm AS nm */ { yymsp[-2].minor.yy131 = sqlite3SrcListAppend(pParse,0,&yymsp[-2].minor.yy0,0); /*A-overwrites-X*/ if( yymsp[-2].minor.yy131 ) yymsp[-2].minor.yy131->a[0].zAlias = sqlite3NameFromToken(pParse->db, &yymsp[0].minor.yy0); } break; - case 121: /* joinop ::= COMMA|JOIN */ + case 122: /* joinop ::= COMMA|JOIN */ { yymsp[0].minor.yy394 = JT_INNER; } break; - case 122: /* joinop ::= JOIN_KW JOIN */ + case 123: /* joinop ::= JOIN_KW JOIN */ {yymsp[-1].minor.yy394 = sqlite3JoinType(pParse,&yymsp[-1].minor.yy0,0,0); /*X-overwrites-A*/} break; - case 123: /* joinop ::= JOIN_KW nm JOIN */ + case 124: /* joinop ::= JOIN_KW nm JOIN */ {yymsp[-2].minor.yy394 = sqlite3JoinType(pParse,&yymsp[-2].minor.yy0,&yymsp[-1].minor.yy0,0); /*X-overwrites-A*/} break; - case 124: /* joinop ::= JOIN_KW nm nm JOIN */ + case 125: /* joinop ::= JOIN_KW nm nm JOIN */ {yymsp[-3].minor.yy394 = sqlite3JoinType(pParse,&yymsp[-3].minor.yy0,&yymsp[-2].minor.yy0,&yymsp[-1].minor.yy0);/*X-overwrites-A*/} break; - case 125: /* on_opt ::= ON expr */ - case 145: /* having_opt ::= HAVING expr */ yytestcase(yyruleno==145); - case 152: /* where_opt ::= WHERE expr */ yytestcase(yyruleno==152); - case 154: /* where_opt_ret ::= WHERE expr */ yytestcase(yyruleno==154); - case 226: /* case_else ::= ELSE expr */ yytestcase(yyruleno==226); - case 247: /* vinto ::= INTO expr */ yytestcase(yyruleno==247); -{yymsp[-1].minor.yy528 = yymsp[0].minor.yy528;} + case 126: /* on_using ::= ON expr */ +{yymsp[-1].minor.yy561.pOn = yymsp[0].minor.yy528; yymsp[-1].minor.yy561.pUsing = 0;} break; - case 126: /* on_opt ::= */ - case 144: /* having_opt ::= */ yytestcase(yyruleno==144); - case 146: /* limit_opt ::= */ yytestcase(yyruleno==146); - case 151: /* where_opt ::= */ yytestcase(yyruleno==151); - case 153: /* where_opt_ret ::= */ yytestcase(yyruleno==153); - case 227: /* case_else ::= */ yytestcase(yyruleno==227); - case 229: /* case_operand ::= */ yytestcase(yyruleno==229); - case 248: /* vinto ::= */ yytestcase(yyruleno==248); -{yymsp[1].minor.yy528 = 0;} + case 127: /* on_using ::= USING LP idlist RP */ +{yymsp[-3].minor.yy561.pOn = 0; yymsp[-3].minor.yy561.pUsing = yymsp[-1].minor.yy254;} break; - case 128: /* indexed_opt ::= INDEXED BY nm */ + case 128: /* on_using ::= */ +{yymsp[1].minor.yy561.pOn = 0; yymsp[1].minor.yy561.pUsing = 0;} + break; + case 130: /* indexed_by ::= INDEXED BY nm */ {yymsp[-2].minor.yy0 = yymsp[0].minor.yy0;} break; - case 129: /* indexed_opt ::= NOT INDEXED */ + case 131: /* indexed_by ::= NOT INDEXED */ {yymsp[-1].minor.yy0.z=0; yymsp[-1].minor.yy0.n=1;} break; - case 130: /* using_opt ::= USING LP idlist RP */ -{yymsp[-3].minor.yy254 = yymsp[-1].minor.yy254;} - break; - case 131: /* using_opt ::= */ - case 173: /* idlist_opt ::= */ yytestcase(yyruleno==173); -{yymsp[1].minor.yy254 = 0;} - break; case 133: /* orderby_opt ::= ORDER BY sortlist */ case 143: /* groupby_opt ::= GROUP BY nexprlist */ yytestcase(yyruleno==143); {yymsp[-2].minor.yy322 = yymsp[0].minor.yy322;} @@ -165570,6 +175084,22 @@ static YYACTIONTYPE yy_reduce( case 140: /* nulls ::= NULLS LAST */ {yymsp[-1].minor.yy394 = SQLITE_SO_DESC;} break; + case 144: /* having_opt ::= */ + case 146: /* limit_opt ::= */ yytestcase(yyruleno==146); + case 151: /* where_opt ::= */ yytestcase(yyruleno==151); + case 153: /* where_opt_ret ::= */ yytestcase(yyruleno==153); + case 230: /* case_else ::= */ yytestcase(yyruleno==230); + case 231: /* case_operand ::= */ yytestcase(yyruleno==231); + case 250: /* vinto ::= */ yytestcase(yyruleno==250); +{yymsp[1].minor.yy528 = 0;} + break; + case 145: /* having_opt ::= HAVING expr */ + case 152: /* where_opt ::= WHERE expr */ yytestcase(yyruleno==152); + case 154: /* where_opt_ret ::= WHERE expr */ yytestcase(yyruleno==154); + case 229: /* case_else ::= ELSE expr */ yytestcase(yyruleno==229); + case 249: /* vinto ::= INTO expr */ yytestcase(yyruleno==249); +{yymsp[-1].minor.yy528 = yymsp[0].minor.yy528;} + break; case 147: /* limit_opt ::= LIMIT expr */ {yymsp[-1].minor.yy528 = sqlite3PExpr(pParse,TK_LIMIT,yymsp[0].minor.yy528,0);} break; @@ -165595,7 +175125,18 @@ static YYACTIONTYPE yy_reduce( { sqlite3SrcListIndexedBy(pParse, yymsp[-5].minor.yy131, &yymsp[-4].minor.yy0); sqlite3ExprListCheckLength(pParse,yymsp[-2].minor.yy322,"set list"); - yymsp[-5].minor.yy131 = sqlite3SrcListAppendList(pParse, yymsp[-5].minor.yy131, yymsp[-1].minor.yy131); + if( yymsp[-1].minor.yy131 ){ + SrcList *pFromClause = yymsp[-1].minor.yy131; + if( pFromClause->nSrc>1 ){ + Select *pSubquery; + Token as; + pSubquery = sqlite3SelectNew(pParse,0,pFromClause,0,0,0,0,SF_NestedFrom,0); + as.n = 0; + as.z = 0; + pFromClause = sqlite3SrcListAppendFromTerm(pParse,0,0,0,&as,pSubquery,0); + } + yymsp[-5].minor.yy131 = sqlite3SrcListAppendList(pParse, yymsp[-5].minor.yy131, pFromClause); + } sqlite3Update(pParse,yymsp[-5].minor.yy131,yymsp[-2].minor.yy322,yymsp[0].minor.yy528,yymsp[-6].minor.yy394,0,0,0); } break; @@ -165653,6 +175194,9 @@ static YYACTIONTYPE yy_reduce( case 170: /* returning ::= RETURNING selcollist */ {sqlite3AddReturning(pParse,yymsp[0].minor.yy322);} break; + case 173: /* idlist_opt ::= */ +{yymsp[1].minor.yy254 = 0;} + break; case 174: /* idlist_opt ::= LP idlist RP */ {yymsp[-2].minor.yy254 = yymsp[-1].minor.yy254;} break; @@ -165665,11 +175209,10 @@ static YYACTIONTYPE yy_reduce( case 177: /* expr ::= LP expr RP */ {yymsp[-2].minor.yy528 = yymsp[-1].minor.yy528;} break; - case 178: /* expr ::= ID|INDEXED */ - case 179: /* expr ::= JOIN_KW */ yytestcase(yyruleno==179); + case 178: /* expr ::= ID|INDEXED|JOIN_KW */ {yymsp[0].minor.yy528=tokenExpr(pParse,TK_ID,yymsp[0].minor.yy0); /*A-overwrites-X*/} break; - case 180: /* expr ::= nm DOT nm */ + case 179: /* expr ::= nm DOT nm */ { Expr *temp1 = tokenExpr(pParse,TK_ID,yymsp[-2].minor.yy0); Expr *temp2 = tokenExpr(pParse,TK_ID,yymsp[0].minor.yy0); @@ -165677,7 +175220,7 @@ static YYACTIONTYPE yy_reduce( } yymsp[-2].minor.yy528 = yylhsminor.yy528; break; - case 181: /* expr ::= nm DOT nm DOT nm */ + case 180: /* expr ::= nm DOT nm DOT nm */ { Expr *temp1 = tokenExpr(pParse,TK_ID,yymsp[-4].minor.yy0); Expr *temp2 = tokenExpr(pParse,TK_ID,yymsp[-2].minor.yy0); @@ -165690,18 +175233,18 @@ static YYACTIONTYPE yy_reduce( } yymsp[-4].minor.yy528 = yylhsminor.yy528; break; - case 182: /* term ::= NULL|FLOAT|BLOB */ - case 183: /* term ::= STRING */ yytestcase(yyruleno==183); + case 181: /* term ::= NULL|FLOAT|BLOB */ + case 182: /* term ::= STRING */ yytestcase(yyruleno==182); {yymsp[0].minor.yy528=tokenExpr(pParse,yymsp[0].major,yymsp[0].minor.yy0); /*A-overwrites-X*/} break; - case 184: /* term ::= INTEGER */ + case 183: /* term ::= INTEGER */ { yylhsminor.yy528 = sqlite3ExprAlloc(pParse->db, TK_INTEGER, &yymsp[0].minor.yy0, 1); if( yylhsminor.yy528 ) yylhsminor.yy528->w.iOfst = (int)(yymsp[0].minor.yy0.z - pParse->zTail); } yymsp[0].minor.yy528 = yylhsminor.yy528; break; - case 185: /* expr ::= VARIABLE */ + case 184: /* expr ::= VARIABLE */ { if( !(yymsp[0].minor.yy0.z[0]=='#' && sqlite3Isdigit(yymsp[0].minor.yy0.z[1])) ){ u32 n = yymsp[0].minor.yy0.n; @@ -165723,50 +175266,65 @@ static YYACTIONTYPE yy_reduce( } } break; - case 186: /* expr ::= expr COLLATE ID|STRING */ + case 185: /* expr ::= expr COLLATE ID|STRING */ { yymsp[-2].minor.yy528 = sqlite3ExprAddCollateToken(pParse, yymsp[-2].minor.yy528, &yymsp[0].minor.yy0, 1); } break; - case 187: /* expr ::= CAST LP expr AS typetoken RP */ + case 186: /* expr ::= CAST LP expr AS typetoken RP */ { yymsp[-5].minor.yy528 = sqlite3ExprAlloc(pParse->db, TK_CAST, &yymsp[-1].minor.yy0, 1); sqlite3ExprAttachSubtrees(pParse->db, yymsp[-5].minor.yy528, yymsp[-3].minor.yy528, 0); } break; - case 188: /* expr ::= ID|INDEXED LP distinct exprlist RP */ + case 187: /* expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist RP */ { yylhsminor.yy528 = sqlite3ExprFunction(pParse, yymsp[-1].minor.yy322, &yymsp[-4].minor.yy0, yymsp[-2].minor.yy394); } yymsp[-4].minor.yy528 = yylhsminor.yy528; break; - case 189: /* expr ::= ID|INDEXED LP STAR RP */ + case 188: /* expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist ORDER BY sortlist RP */ +{ + yylhsminor.yy528 = sqlite3ExprFunction(pParse, yymsp[-4].minor.yy322, &yymsp[-7].minor.yy0, yymsp[-5].minor.yy394); + sqlite3ExprAddFunctionOrderBy(pParse, yylhsminor.yy528, yymsp[-1].minor.yy322); +} + yymsp[-7].minor.yy528 = yylhsminor.yy528; + break; + case 189: /* expr ::= ID|INDEXED|JOIN_KW LP STAR RP */ { yylhsminor.yy528 = sqlite3ExprFunction(pParse, 0, &yymsp[-3].minor.yy0, 0); } yymsp[-3].minor.yy528 = yylhsminor.yy528; break; - case 190: /* expr ::= ID|INDEXED LP distinct exprlist RP filter_over */ + case 190: /* expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist RP filter_over */ { yylhsminor.yy528 = sqlite3ExprFunction(pParse, yymsp[-2].minor.yy322, &yymsp[-5].minor.yy0, yymsp[-3].minor.yy394); sqlite3WindowAttach(pParse, yylhsminor.yy528, yymsp[0].minor.yy41); } yymsp[-5].minor.yy528 = yylhsminor.yy528; break; - case 191: /* expr ::= ID|INDEXED LP STAR RP filter_over */ + case 191: /* expr ::= ID|INDEXED|JOIN_KW LP distinct exprlist ORDER BY sortlist RP filter_over */ +{ + yylhsminor.yy528 = sqlite3ExprFunction(pParse, yymsp[-5].minor.yy322, &yymsp[-8].minor.yy0, yymsp[-6].minor.yy394); + sqlite3WindowAttach(pParse, yylhsminor.yy528, yymsp[0].minor.yy41); + sqlite3ExprAddFunctionOrderBy(pParse, yylhsminor.yy528, yymsp[-2].minor.yy322); +} + yymsp[-8].minor.yy528 = yylhsminor.yy528; + break; + case 192: /* expr ::= ID|INDEXED|JOIN_KW LP STAR RP filter_over */ { yylhsminor.yy528 = sqlite3ExprFunction(pParse, 0, &yymsp[-4].minor.yy0, 0); sqlite3WindowAttach(pParse, yylhsminor.yy528, yymsp[0].minor.yy41); } yymsp[-4].minor.yy528 = yylhsminor.yy528; break; - case 192: /* term ::= CTIME_KW */ + case 193: /* term ::= CTIME_KW */ { yylhsminor.yy528 = sqlite3ExprFunction(pParse, 0, &yymsp[0].minor.yy0, 0); } yymsp[0].minor.yy528 = yylhsminor.yy528; break; - case 193: /* expr ::= LP nexprlist COMMA expr RP */ + case 194: /* expr ::= LP nexprlist COMMA expr RP */ { ExprList *pList = sqlite3ExprListAppend(pParse, yymsp[-3].minor.yy322, yymsp[-1].minor.yy528); yymsp[-4].minor.yy528 = sqlite3PExpr(pParse, TK_VECTOR, 0, 0); @@ -165780,22 +175338,22 @@ static YYACTIONTYPE yy_reduce( } } break; - case 194: /* expr ::= expr AND expr */ + case 195: /* expr ::= expr AND expr */ {yymsp[-2].minor.yy528=sqlite3ExprAnd(pParse,yymsp[-2].minor.yy528,yymsp[0].minor.yy528);} break; - case 195: /* expr ::= expr OR expr */ - case 196: /* expr ::= expr LT|GT|GE|LE expr */ yytestcase(yyruleno==196); - case 197: /* expr ::= expr EQ|NE expr */ yytestcase(yyruleno==197); - case 198: /* expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr */ yytestcase(yyruleno==198); - case 199: /* expr ::= expr PLUS|MINUS expr */ yytestcase(yyruleno==199); - case 200: /* expr ::= expr STAR|SLASH|REM expr */ yytestcase(yyruleno==200); - case 201: /* expr ::= expr CONCAT expr */ yytestcase(yyruleno==201); + case 196: /* expr ::= expr OR expr */ + case 197: /* expr ::= expr LT|GT|GE|LE expr */ yytestcase(yyruleno==197); + case 198: /* expr ::= expr EQ|NE expr */ yytestcase(yyruleno==198); + case 199: /* expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr */ yytestcase(yyruleno==199); + case 200: /* expr ::= expr PLUS|MINUS expr */ yytestcase(yyruleno==200); + case 201: /* expr ::= expr STAR|SLASH|REM expr */ yytestcase(yyruleno==201); + case 202: /* expr ::= expr CONCAT expr */ yytestcase(yyruleno==202); {yymsp[-2].minor.yy528=sqlite3PExpr(pParse,yymsp[-1].major,yymsp[-2].minor.yy528,yymsp[0].minor.yy528);} break; - case 202: /* likeop ::= NOT LIKE_KW|MATCH */ + case 203: /* likeop ::= NOT LIKE_KW|MATCH */ {yymsp[-1].minor.yy0=yymsp[0].minor.yy0; yymsp[-1].minor.yy0.n|=0x80000000; /*yymsp[-1].minor.yy0-overwrite-yymsp[0].minor.yy0*/} break; - case 203: /* expr ::= expr likeop expr */ + case 204: /* expr ::= expr likeop expr */ { ExprList *pList; int bNot = yymsp[-1].minor.yy0.n & 0x80000000; @@ -165807,7 +175365,7 @@ static YYACTIONTYPE yy_reduce( if( yymsp[-2].minor.yy528 ) yymsp[-2].minor.yy528->flags |= EP_InfixFunc; } break; - case 204: /* expr ::= expr likeop expr ESCAPE expr */ + case 205: /* expr ::= expr likeop expr ESCAPE expr */ { ExprList *pList; int bNot = yymsp[-3].minor.yy0.n & 0x80000000; @@ -165820,35 +175378,47 @@ static YYACTIONTYPE yy_reduce( if( yymsp[-4].minor.yy528 ) yymsp[-4].minor.yy528->flags |= EP_InfixFunc; } break; - case 205: /* expr ::= expr ISNULL|NOTNULL */ + case 206: /* expr ::= expr ISNULL|NOTNULL */ {yymsp[-1].minor.yy528 = sqlite3PExpr(pParse,yymsp[0].major,yymsp[-1].minor.yy528,0);} break; - case 206: /* expr ::= expr NOT NULL */ + case 207: /* expr ::= expr NOT NULL */ {yymsp[-2].minor.yy528 = sqlite3PExpr(pParse,TK_NOTNULL,yymsp[-2].minor.yy528,0);} break; - case 207: /* expr ::= expr IS expr */ + case 208: /* expr ::= expr IS expr */ { yymsp[-2].minor.yy528 = sqlite3PExpr(pParse,TK_IS,yymsp[-2].minor.yy528,yymsp[0].minor.yy528); binaryToUnaryIfNull(pParse, yymsp[0].minor.yy528, yymsp[-2].minor.yy528, TK_ISNULL); } break; - case 208: /* expr ::= expr IS NOT expr */ + case 209: /* expr ::= expr IS NOT expr */ { yymsp[-3].minor.yy528 = sqlite3PExpr(pParse,TK_ISNOT,yymsp[-3].minor.yy528,yymsp[0].minor.yy528); binaryToUnaryIfNull(pParse, yymsp[0].minor.yy528, yymsp[-3].minor.yy528, TK_NOTNULL); } break; - case 209: /* expr ::= NOT expr */ - case 210: /* expr ::= BITNOT expr */ yytestcase(yyruleno==210); + case 210: /* expr ::= expr IS NOT DISTINCT FROM expr */ +{ + yymsp[-5].minor.yy528 = sqlite3PExpr(pParse,TK_IS,yymsp[-5].minor.yy528,yymsp[0].minor.yy528); + binaryToUnaryIfNull(pParse, yymsp[0].minor.yy528, yymsp[-5].minor.yy528, TK_ISNULL); +} + break; + case 211: /* expr ::= expr IS DISTINCT FROM expr */ +{ + yymsp[-4].minor.yy528 = sqlite3PExpr(pParse,TK_ISNOT,yymsp[-4].minor.yy528,yymsp[0].minor.yy528); + binaryToUnaryIfNull(pParse, yymsp[0].minor.yy528, yymsp[-4].minor.yy528, TK_NOTNULL); +} + break; + case 212: /* expr ::= NOT expr */ + case 213: /* expr ::= BITNOT expr */ yytestcase(yyruleno==213); {yymsp[-1].minor.yy528 = sqlite3PExpr(pParse, yymsp[-1].major, yymsp[0].minor.yy528, 0);/*A-overwrites-B*/} break; - case 211: /* expr ::= PLUS|MINUS expr */ + case 214: /* expr ::= PLUS|MINUS expr */ { yymsp[-1].minor.yy528 = sqlite3PExpr(pParse, yymsp[-1].major==TK_PLUS ? TK_UPLUS : TK_UMINUS, yymsp[0].minor.yy528, 0); /*A-overwrites-B*/ } break; - case 212: /* expr ::= expr PTR expr */ + case 215: /* expr ::= expr PTR expr */ { ExprList *pList = sqlite3ExprListAppend(pParse, 0, yymsp[-2].minor.yy528); pList = sqlite3ExprListAppend(pParse, pList, yymsp[0].minor.yy528); @@ -165856,11 +175426,11 @@ static YYACTIONTYPE yy_reduce( } yymsp[-2].minor.yy528 = yylhsminor.yy528; break; - case 213: /* between_op ::= BETWEEN */ - case 216: /* in_op ::= IN */ yytestcase(yyruleno==216); + case 216: /* between_op ::= BETWEEN */ + case 219: /* in_op ::= IN */ yytestcase(yyruleno==219); {yymsp[0].minor.yy394 = 0;} break; - case 215: /* expr ::= expr between_op expr AND expr */ + case 218: /* expr ::= expr between_op expr AND expr */ { ExprList *pList = sqlite3ExprListAppend(pParse,0, yymsp[-2].minor.yy528); pList = sqlite3ExprListAppend(pParse,pList, yymsp[0].minor.yy528); @@ -165873,7 +175443,7 @@ static YYACTIONTYPE yy_reduce( if( yymsp[-3].minor.yy394 ) yymsp[-4].minor.yy528 = sqlite3PExpr(pParse, TK_NOT, yymsp[-4].minor.yy528, 0); } break; - case 218: /* expr ::= expr in_op LP exprlist RP */ + case 221: /* expr ::= expr in_op LP exprlist RP */ { if( yymsp[-1].minor.yy322==0 ){ /* Expressions of the form @@ -165885,7 +175455,8 @@ static YYACTIONTYPE yy_reduce( ** regardless of the value of expr1. */ sqlite3ExprUnmapAndDelete(pParse, yymsp[-4].minor.yy528); - yymsp[-4].minor.yy528 = sqlite3Expr(pParse->db, TK_INTEGER, yymsp[-3].minor.yy394 ? "1" : "0"); + yymsp[-4].minor.yy528 = sqlite3Expr(pParse->db, TK_STRING, yymsp[-3].minor.yy394 ? "true" : "false"); + if( yymsp[-4].minor.yy528 ) sqlite3ExprIdToTrueFalse(yymsp[-4].minor.yy528); }else{ Expr *pRHS = yymsp[-1].minor.yy322->a[0].pExpr; if( yymsp[-1].minor.yy322->nExpr==1 && sqlite3ExprIsConstant(pRHS) && yymsp[-4].minor.yy528->op!=TK_VECTOR ){ @@ -165893,6 +175464,11 @@ static YYACTIONTYPE yy_reduce( sqlite3ExprListDelete(pParse->db, yymsp[-1].minor.yy322); pRHS = sqlite3PExpr(pParse, TK_UPLUS, pRHS, 0); yymsp[-4].minor.yy528 = sqlite3PExpr(pParse, TK_EQ, yymsp[-4].minor.yy528, pRHS); + }else if( yymsp[-1].minor.yy322->nExpr==1 && pRHS->op==TK_SELECT ){ + yymsp[-4].minor.yy528 = sqlite3PExpr(pParse, TK_IN, yymsp[-4].minor.yy528, 0); + sqlite3PExprAddSelect(pParse, yymsp[-4].minor.yy528, pRHS->x.pSelect); + pRHS->x.pSelect = 0; + sqlite3ExprListDelete(pParse->db, yymsp[-1].minor.yy322); }else{ yymsp[-4].minor.yy528 = sqlite3PExpr(pParse, TK_IN, yymsp[-4].minor.yy528, 0); if( yymsp[-4].minor.yy528==0 ){ @@ -165913,20 +175489,20 @@ static YYACTIONTYPE yy_reduce( } } break; - case 219: /* expr ::= LP select RP */ + case 222: /* expr ::= LP select RP */ { yymsp[-2].minor.yy528 = sqlite3PExpr(pParse, TK_SELECT, 0, 0); sqlite3PExprAddSelect(pParse, yymsp[-2].minor.yy528, yymsp[-1].minor.yy47); } break; - case 220: /* expr ::= expr in_op LP select RP */ + case 223: /* expr ::= expr in_op LP select RP */ { yymsp[-4].minor.yy528 = sqlite3PExpr(pParse, TK_IN, yymsp[-4].minor.yy528, 0); sqlite3PExprAddSelect(pParse, yymsp[-4].minor.yy528, yymsp[-1].minor.yy47); if( yymsp[-3].minor.yy394 ) yymsp[-4].minor.yy528 = sqlite3PExpr(pParse, TK_NOT, yymsp[-4].minor.yy528, 0); } break; - case 221: /* expr ::= expr in_op nm dbnm paren_exprlist */ + case 224: /* expr ::= expr in_op nm dbnm paren_exprlist */ { SrcList *pSrc = sqlite3SrcListAppend(pParse, 0,&yymsp[-2].minor.yy0,&yymsp[-1].minor.yy0); Select *pSelect = sqlite3SelectNew(pParse, 0,pSrc,0,0,0,0,0,0); @@ -165936,14 +175512,14 @@ static YYACTIONTYPE yy_reduce( if( yymsp[-3].minor.yy394 ) yymsp[-4].minor.yy528 = sqlite3PExpr(pParse, TK_NOT, yymsp[-4].minor.yy528, 0); } break; - case 222: /* expr ::= EXISTS LP select RP */ + case 225: /* expr ::= EXISTS LP select RP */ { Expr *p; p = yymsp[-3].minor.yy528 = sqlite3PExpr(pParse, TK_EXISTS, 0, 0); sqlite3PExprAddSelect(pParse, p, yymsp[-1].minor.yy47); } break; - case 223: /* expr ::= CASE case_operand case_exprlist case_else END */ + case 226: /* expr ::= CASE case_operand case_exprlist case_else END */ { yymsp[-4].minor.yy528 = sqlite3PExpr(pParse, TK_CASE, yymsp[-3].minor.yy528, 0); if( yymsp[-4].minor.yy528 ){ @@ -165955,32 +175531,29 @@ static YYACTIONTYPE yy_reduce( } } break; - case 224: /* case_exprlist ::= case_exprlist WHEN expr THEN expr */ + case 227: /* case_exprlist ::= case_exprlist WHEN expr THEN expr */ { yymsp[-4].minor.yy322 = sqlite3ExprListAppend(pParse,yymsp[-4].minor.yy322, yymsp[-2].minor.yy528); yymsp[-4].minor.yy322 = sqlite3ExprListAppend(pParse,yymsp[-4].minor.yy322, yymsp[0].minor.yy528); } break; - case 225: /* case_exprlist ::= WHEN expr THEN expr */ + case 228: /* case_exprlist ::= WHEN expr THEN expr */ { yymsp[-3].minor.yy322 = sqlite3ExprListAppend(pParse,0, yymsp[-2].minor.yy528); yymsp[-3].minor.yy322 = sqlite3ExprListAppend(pParse,yymsp[-3].minor.yy322, yymsp[0].minor.yy528); } break; - case 228: /* case_operand ::= expr */ -{yymsp[0].minor.yy528 = yymsp[0].minor.yy528; /*A-overwrites-X*/} - break; - case 231: /* nexprlist ::= nexprlist COMMA expr */ + case 233: /* nexprlist ::= nexprlist COMMA expr */ {yymsp[-2].minor.yy322 = sqlite3ExprListAppend(pParse,yymsp[-2].minor.yy322,yymsp[0].minor.yy528);} break; - case 232: /* nexprlist ::= expr */ + case 234: /* nexprlist ::= expr */ {yymsp[0].minor.yy322 = sqlite3ExprListAppend(pParse,0,yymsp[0].minor.yy528); /*A-overwrites-Y*/} break; - case 234: /* paren_exprlist ::= LP exprlist RP */ - case 239: /* eidlist_opt ::= LP eidlist RP */ yytestcase(yyruleno==239); + case 236: /* paren_exprlist ::= LP exprlist RP */ + case 241: /* eidlist_opt ::= LP eidlist RP */ yytestcase(yyruleno==241); {yymsp[-2].minor.yy322 = yymsp[-1].minor.yy322;} break; - case 235: /* cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt */ + case 237: /* cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt */ { sqlite3CreateIndex(pParse, &yymsp[-7].minor.yy0, &yymsp[-6].minor.yy0, sqlite3SrcListAppend(pParse,0,&yymsp[-4].minor.yy0,0), yymsp[-2].minor.yy322, yymsp[-10].minor.yy394, @@ -165990,48 +175563,48 @@ static YYACTIONTYPE yy_reduce( } } break; - case 236: /* uniqueflag ::= UNIQUE */ - case 278: /* raisetype ::= ABORT */ yytestcase(yyruleno==278); + case 238: /* uniqueflag ::= UNIQUE */ + case 280: /* raisetype ::= ABORT */ yytestcase(yyruleno==280); {yymsp[0].minor.yy394 = OE_Abort;} break; - case 237: /* uniqueflag ::= */ + case 239: /* uniqueflag ::= */ {yymsp[1].minor.yy394 = OE_None;} break; - case 240: /* eidlist ::= eidlist COMMA nm collate sortorder */ + case 242: /* eidlist ::= eidlist COMMA nm collate sortorder */ { yymsp[-4].minor.yy322 = parserAddExprIdListTerm(pParse, yymsp[-4].minor.yy322, &yymsp[-2].minor.yy0, yymsp[-1].minor.yy394, yymsp[0].minor.yy394); } break; - case 241: /* eidlist ::= nm collate sortorder */ + case 243: /* eidlist ::= nm collate sortorder */ { yymsp[-2].minor.yy322 = parserAddExprIdListTerm(pParse, 0, &yymsp[-2].minor.yy0, yymsp[-1].minor.yy394, yymsp[0].minor.yy394); /*A-overwrites-Y*/ } break; - case 244: /* cmd ::= DROP INDEX ifexists fullname */ + case 246: /* cmd ::= DROP INDEX ifexists fullname */ {sqlite3DropIndex(pParse, yymsp[0].minor.yy131, yymsp[-1].minor.yy394);} break; - case 245: /* cmd ::= VACUUM vinto */ + case 247: /* cmd ::= VACUUM vinto */ {sqlite3Vacuum(pParse,0,yymsp[0].minor.yy528);} break; - case 246: /* cmd ::= VACUUM nm vinto */ + case 248: /* cmd ::= VACUUM nm vinto */ {sqlite3Vacuum(pParse,&yymsp[-1].minor.yy0,yymsp[0].minor.yy528);} break; - case 249: /* cmd ::= PRAGMA nm dbnm */ + case 251: /* cmd ::= PRAGMA nm dbnm */ {sqlite3Pragma(pParse,&yymsp[-1].minor.yy0,&yymsp[0].minor.yy0,0,0);} break; - case 250: /* cmd ::= PRAGMA nm dbnm EQ nmnum */ + case 252: /* cmd ::= PRAGMA nm dbnm EQ nmnum */ {sqlite3Pragma(pParse,&yymsp[-3].minor.yy0,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0,0);} break; - case 251: /* cmd ::= PRAGMA nm dbnm LP nmnum RP */ + case 253: /* cmd ::= PRAGMA nm dbnm LP nmnum RP */ {sqlite3Pragma(pParse,&yymsp[-4].minor.yy0,&yymsp[-3].minor.yy0,&yymsp[-1].minor.yy0,0);} break; - case 252: /* cmd ::= PRAGMA nm dbnm EQ minus_num */ + case 254: /* cmd ::= PRAGMA nm dbnm EQ minus_num */ {sqlite3Pragma(pParse,&yymsp[-3].minor.yy0,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0,1);} break; - case 253: /* cmd ::= PRAGMA nm dbnm LP minus_num RP */ + case 255: /* cmd ::= PRAGMA nm dbnm LP minus_num RP */ {sqlite3Pragma(pParse,&yymsp[-4].minor.yy0,&yymsp[-3].minor.yy0,&yymsp[-1].minor.yy0,1);} break; - case 256: /* cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END */ + case 258: /* cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END */ { Token all; all.z = yymsp[-3].minor.yy0.z; @@ -166039,50 +175612,50 @@ static YYACTIONTYPE yy_reduce( sqlite3FinishTrigger(pParse, yymsp[-1].minor.yy33, &all); } break; - case 257: /* trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause */ + case 259: /* trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause */ { sqlite3BeginTrigger(pParse, &yymsp[-7].minor.yy0, &yymsp[-6].minor.yy0, yymsp[-5].minor.yy394, yymsp[-4].minor.yy180.a, yymsp[-4].minor.yy180.b, yymsp[-2].minor.yy131, yymsp[0].minor.yy528, yymsp[-10].minor.yy394, yymsp[-8].minor.yy394); yymsp[-10].minor.yy0 = (yymsp[-6].minor.yy0.n==0?yymsp[-7].minor.yy0:yymsp[-6].minor.yy0); /*A-overwrites-T*/ } break; - case 258: /* trigger_time ::= BEFORE|AFTER */ + case 260: /* trigger_time ::= BEFORE|AFTER */ { yymsp[0].minor.yy394 = yymsp[0].major; /*A-overwrites-X*/ } break; - case 259: /* trigger_time ::= INSTEAD OF */ + case 261: /* trigger_time ::= INSTEAD OF */ { yymsp[-1].minor.yy394 = TK_INSTEAD;} break; - case 260: /* trigger_time ::= */ + case 262: /* trigger_time ::= */ { yymsp[1].minor.yy394 = TK_BEFORE; } break; - case 261: /* trigger_event ::= DELETE|INSERT */ - case 262: /* trigger_event ::= UPDATE */ yytestcase(yyruleno==262); + case 263: /* trigger_event ::= DELETE|INSERT */ + case 264: /* trigger_event ::= UPDATE */ yytestcase(yyruleno==264); {yymsp[0].minor.yy180.a = yymsp[0].major; /*A-overwrites-X*/ yymsp[0].minor.yy180.b = 0;} break; - case 263: /* trigger_event ::= UPDATE OF idlist */ + case 265: /* trigger_event ::= UPDATE OF idlist */ {yymsp[-2].minor.yy180.a = TK_UPDATE; yymsp[-2].minor.yy180.b = yymsp[0].minor.yy254;} break; - case 264: /* when_clause ::= */ - case 283: /* key_opt ::= */ yytestcase(yyruleno==283); + case 266: /* when_clause ::= */ + case 285: /* key_opt ::= */ yytestcase(yyruleno==285); { yymsp[1].minor.yy528 = 0; } break; - case 265: /* when_clause ::= WHEN expr */ - case 284: /* key_opt ::= KEY expr */ yytestcase(yyruleno==284); + case 267: /* when_clause ::= WHEN expr */ + case 286: /* key_opt ::= KEY expr */ yytestcase(yyruleno==286); { yymsp[-1].minor.yy528 = yymsp[0].minor.yy528; } break; - case 266: /* trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI */ + case 268: /* trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI */ { assert( yymsp[-2].minor.yy33!=0 ); yymsp[-2].minor.yy33->pLast->pNext = yymsp[-1].minor.yy33; yymsp[-2].minor.yy33->pLast = yymsp[-1].minor.yy33; } break; - case 267: /* trigger_cmd_list ::= trigger_cmd SEMI */ + case 269: /* trigger_cmd_list ::= trigger_cmd SEMI */ { assert( yymsp[-1].minor.yy33!=0 ); yymsp[-1].minor.yy33->pLast = yymsp[-1].minor.yy33; } break; - case 268: /* trnm ::= nm DOT nm */ + case 270: /* trnm ::= nm DOT nm */ { yymsp[-2].minor.yy0 = yymsp[0].minor.yy0; sqlite3ErrorMsg(pParse, @@ -166090,39 +175663,39 @@ static YYACTIONTYPE yy_reduce( "statements within triggers"); } break; - case 269: /* tridxby ::= INDEXED BY nm */ + case 271: /* tridxby ::= INDEXED BY nm */ { sqlite3ErrorMsg(pParse, "the INDEXED BY clause is not allowed on UPDATE or DELETE statements " "within triggers"); } break; - case 270: /* tridxby ::= NOT INDEXED */ + case 272: /* tridxby ::= NOT INDEXED */ { sqlite3ErrorMsg(pParse, "the NOT INDEXED clause is not allowed on UPDATE or DELETE statements " "within triggers"); } break; - case 271: /* trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist from where_opt scanpt */ + case 273: /* trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist from where_opt scanpt */ {yylhsminor.yy33 = sqlite3TriggerUpdateStep(pParse, &yymsp[-6].minor.yy0, yymsp[-2].minor.yy131, yymsp[-3].minor.yy322, yymsp[-1].minor.yy528, yymsp[-7].minor.yy394, yymsp[-8].minor.yy0.z, yymsp[0].minor.yy522);} yymsp[-8].minor.yy33 = yylhsminor.yy33; break; - case 272: /* trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt */ + case 274: /* trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt */ { yylhsminor.yy33 = sqlite3TriggerInsertStep(pParse,&yymsp[-4].minor.yy0,yymsp[-3].minor.yy254,yymsp[-2].minor.yy47,yymsp[-6].minor.yy394,yymsp[-1].minor.yy444,yymsp[-7].minor.yy522,yymsp[0].minor.yy522);/*yylhsminor.yy33-overwrites-yymsp[-6].minor.yy394*/ } yymsp[-7].minor.yy33 = yylhsminor.yy33; break; - case 273: /* trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt */ + case 275: /* trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt */ {yylhsminor.yy33 = sqlite3TriggerDeleteStep(pParse, &yymsp[-3].minor.yy0, yymsp[-1].minor.yy528, yymsp[-5].minor.yy0.z, yymsp[0].minor.yy522);} yymsp[-5].minor.yy33 = yylhsminor.yy33; break; - case 274: /* trigger_cmd ::= scanpt select scanpt */ + case 276: /* trigger_cmd ::= scanpt select scanpt */ {yylhsminor.yy33 = sqlite3TriggerSelectStep(pParse->db, yymsp[-1].minor.yy47, yymsp[-2].minor.yy522, yymsp[0].minor.yy522); /*yylhsminor.yy33-overwrites-yymsp[-1].minor.yy47*/} yymsp[-2].minor.yy33 = yylhsminor.yy33; break; - case 275: /* expr ::= RAISE LP IGNORE RP */ + case 277: /* expr ::= RAISE LP IGNORE RP */ { yymsp[-3].minor.yy528 = sqlite3PExpr(pParse, TK_RAISE, 0, 0); if( yymsp[-3].minor.yy528 ){ @@ -166130,7 +175703,7 @@ static YYACTIONTYPE yy_reduce( } } break; - case 276: /* expr ::= RAISE LP raisetype COMMA nm RP */ + case 278: /* expr ::= RAISE LP raisetype COMMA nm RP */ { yymsp[-5].minor.yy528 = sqlite3ExprAlloc(pParse->db, TK_RAISE, &yymsp[-1].minor.yy0, 1); if( yymsp[-5].minor.yy528 ) { @@ -166138,118 +175711,114 @@ static YYACTIONTYPE yy_reduce( } } break; - case 277: /* raisetype ::= ROLLBACK */ + case 279: /* raisetype ::= ROLLBACK */ {yymsp[0].minor.yy394 = OE_Rollback;} break; - case 279: /* raisetype ::= FAIL */ + case 281: /* raisetype ::= FAIL */ {yymsp[0].minor.yy394 = OE_Fail;} break; - case 280: /* cmd ::= DROP TRIGGER ifexists fullname */ + case 282: /* cmd ::= DROP TRIGGER ifexists fullname */ { sqlite3DropTrigger(pParse,yymsp[0].minor.yy131,yymsp[-1].minor.yy394); } break; - case 281: /* cmd ::= ATTACH database_kw_opt expr AS expr key_opt */ + case 283: /* cmd ::= ATTACH database_kw_opt expr AS expr key_opt */ { sqlite3Attach(pParse, yymsp[-3].minor.yy528, yymsp[-1].minor.yy528, yymsp[0].minor.yy528); } break; - case 282: /* cmd ::= DETACH database_kw_opt expr */ + case 284: /* cmd ::= DETACH database_kw_opt expr */ { sqlite3Detach(pParse, yymsp[0].minor.yy528); } break; - case 285: /* cmd ::= REINDEX */ + case 287: /* cmd ::= REINDEX */ {sqlite3Reindex(pParse, 0, 0);} break; - case 286: /* cmd ::= REINDEX nm dbnm */ + case 288: /* cmd ::= REINDEX nm dbnm */ {sqlite3Reindex(pParse, &yymsp[-1].minor.yy0, &yymsp[0].minor.yy0);} break; - case 287: /* cmd ::= ANALYZE */ + case 289: /* cmd ::= ANALYZE */ {sqlite3Analyze(pParse, 0, 0);} break; - case 288: /* cmd ::= ANALYZE nm dbnm */ + case 290: /* cmd ::= ANALYZE nm dbnm */ {sqlite3Analyze(pParse, &yymsp[-1].minor.yy0, &yymsp[0].minor.yy0);} break; - case 289: /* cmd ::= ALTER TABLE fullname RENAME TO nm */ + case 291: /* cmd ::= ALTER TABLE fullname RENAME TO nm */ { sqlite3AlterRenameTable(pParse,yymsp[-3].minor.yy131,&yymsp[0].minor.yy0); } break; - case 290: /* cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist */ + case 292: /* cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist */ { yymsp[-1].minor.yy0.n = (int)(pParse->sLastToken.z-yymsp[-1].minor.yy0.z) + pParse->sLastToken.n; sqlite3AlterFinishAddColumn(pParse, &yymsp[-1].minor.yy0); } break; - case 291: /* cmd ::= ALTER TABLE fullname DROP kwcolumn_opt nm */ + case 293: /* cmd ::= ALTER TABLE fullname DROP kwcolumn_opt nm */ { sqlite3AlterDropColumn(pParse, yymsp[-3].minor.yy131, &yymsp[0].minor.yy0); } break; - case 292: /* add_column_fullname ::= fullname */ + case 294: /* add_column_fullname ::= fullname */ { disableLookaside(pParse); sqlite3AlterBeginAddColumn(pParse, yymsp[0].minor.yy131); } break; - case 293: /* cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm */ + case 295: /* cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm */ { sqlite3AlterRenameColumn(pParse, yymsp[-5].minor.yy131, &yymsp[-2].minor.yy0, &yymsp[0].minor.yy0); } break; - case 294: /* cmd ::= create_vtab */ + case 296: /* cmd ::= create_vtab */ {sqlite3VtabFinishParse(pParse,0);} break; - case 295: /* cmd ::= create_vtab LP vtabarglist RP */ + case 297: /* cmd ::= create_vtab LP vtabarglist RP */ {sqlite3VtabFinishParse(pParse,&yymsp[0].minor.yy0);} break; - case 296: /* create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm */ + case 298: /* create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm */ { sqlite3VtabBeginParse(pParse, &yymsp[-3].minor.yy0, &yymsp[-2].minor.yy0, &yymsp[0].minor.yy0, yymsp[-4].minor.yy394); } break; - case 297: /* vtabarg ::= */ + case 299: /* vtabarg ::= */ {sqlite3VtabArgInit(pParse);} break; - case 298: /* vtabargtoken ::= ANY */ - case 299: /* vtabargtoken ::= lp anylist RP */ yytestcase(yyruleno==299); - case 300: /* lp ::= LP */ yytestcase(yyruleno==300); + case 300: /* vtabargtoken ::= ANY */ + case 301: /* vtabargtoken ::= lp anylist RP */ yytestcase(yyruleno==301); + case 302: /* lp ::= LP */ yytestcase(yyruleno==302); {sqlite3VtabArgExtend(pParse,&yymsp[0].minor.yy0);} break; - case 301: /* with ::= WITH wqlist */ - case 302: /* with ::= WITH RECURSIVE wqlist */ yytestcase(yyruleno==302); + case 303: /* with ::= WITH wqlist */ + case 304: /* with ::= WITH RECURSIVE wqlist */ yytestcase(yyruleno==304); { sqlite3WithPush(pParse, yymsp[0].minor.yy521, 1); } break; - case 303: /* wqas ::= AS */ + case 305: /* wqas ::= AS */ {yymsp[0].minor.yy516 = M10d_Any;} break; - case 304: /* wqas ::= AS MATERIALIZED */ + case 306: /* wqas ::= AS MATERIALIZED */ {yymsp[-1].minor.yy516 = M10d_Yes;} break; - case 305: /* wqas ::= AS NOT MATERIALIZED */ + case 307: /* wqas ::= AS NOT MATERIALIZED */ {yymsp[-2].minor.yy516 = M10d_No;} break; - case 306: /* wqitem ::= nm eidlist_opt wqas LP select RP */ + case 308: /* wqitem ::= nm eidlist_opt wqas LP select RP */ { yymsp[-5].minor.yy385 = sqlite3CteNew(pParse, &yymsp[-5].minor.yy0, yymsp[-4].minor.yy322, yymsp[-1].minor.yy47, yymsp[-3].minor.yy516); /*A-overwrites-X*/ } break; - case 307: /* wqlist ::= wqitem */ + case 309: /* wqlist ::= wqitem */ { yymsp[0].minor.yy521 = sqlite3WithAdd(pParse, 0, yymsp[0].minor.yy385); /*A-overwrites-X*/ } break; - case 308: /* wqlist ::= wqlist COMMA wqitem */ + case 310: /* wqlist ::= wqlist COMMA wqitem */ { yymsp[-2].minor.yy521 = sqlite3WithAdd(pParse, yymsp[-2].minor.yy521, yymsp[0].minor.yy385); } break; - case 309: /* windowdefn_list ::= windowdefn */ -{ yylhsminor.yy41 = yymsp[0].minor.yy41; } - yymsp[0].minor.yy41 = yylhsminor.yy41; - break; - case 310: /* windowdefn_list ::= windowdefn_list COMMA windowdefn */ + case 311: /* windowdefn_list ::= windowdefn_list COMMA windowdefn */ { assert( yymsp[0].minor.yy41!=0 ); sqlite3WindowChain(pParse, yymsp[0].minor.yy41, yymsp[-2].minor.yy41); @@ -166258,7 +175827,7 @@ static YYACTIONTYPE yy_reduce( } yymsp[-2].minor.yy41 = yylhsminor.yy41; break; - case 311: /* windowdefn ::= nm AS LP window RP */ + case 312: /* windowdefn ::= nm AS LP window RP */ { if( ALWAYS(yymsp[-1].minor.yy41) ){ yymsp[-1].minor.yy41->zName = sqlite3DbStrNDup(pParse->db, yymsp[-4].minor.yy0.z, yymsp[-4].minor.yy0.n); @@ -166267,35 +175836,28 @@ static YYACTIONTYPE yy_reduce( } yymsp[-4].minor.yy41 = yylhsminor.yy41; break; - case 312: /* window ::= PARTITION BY nexprlist orderby_opt frame_opt */ + case 313: /* window ::= PARTITION BY nexprlist orderby_opt frame_opt */ { yymsp[-4].minor.yy41 = sqlite3WindowAssemble(pParse, yymsp[0].minor.yy41, yymsp[-2].minor.yy322, yymsp[-1].minor.yy322, 0); } break; - case 313: /* window ::= nm PARTITION BY nexprlist orderby_opt frame_opt */ + case 314: /* window ::= nm PARTITION BY nexprlist orderby_opt frame_opt */ { yylhsminor.yy41 = sqlite3WindowAssemble(pParse, yymsp[0].minor.yy41, yymsp[-2].minor.yy322, yymsp[-1].minor.yy322, &yymsp[-5].minor.yy0); } yymsp[-5].minor.yy41 = yylhsminor.yy41; break; - case 314: /* window ::= ORDER BY sortlist frame_opt */ + case 315: /* window ::= ORDER BY sortlist frame_opt */ { yymsp[-3].minor.yy41 = sqlite3WindowAssemble(pParse, yymsp[0].minor.yy41, 0, yymsp[-1].minor.yy322, 0); } break; - case 315: /* window ::= nm ORDER BY sortlist frame_opt */ + case 316: /* window ::= nm ORDER BY sortlist frame_opt */ { yylhsminor.yy41 = sqlite3WindowAssemble(pParse, yymsp[0].minor.yy41, 0, yymsp[-1].minor.yy322, &yymsp[-4].minor.yy0); } yymsp[-4].minor.yy41 = yylhsminor.yy41; break; - case 316: /* window ::= frame_opt */ - case 335: /* filter_over ::= over_clause */ yytestcase(yyruleno==335); -{ - yylhsminor.yy41 = yymsp[0].minor.yy41; -} - yymsp[0].minor.yy41 = yylhsminor.yy41; - break; case 317: /* window ::= nm frame_opt */ { yylhsminor.yy41 = sqlite3WindowAssemble(pParse, yymsp[0].minor.yy41, 0, 0, &yymsp[-1].minor.yy0); @@ -166361,6 +175923,12 @@ static YYACTIONTYPE yy_reduce( } yymsp[-1].minor.yy41 = yylhsminor.yy41; break; + case 335: /* filter_over ::= over_clause */ +{ + yylhsminor.yy41 = yymsp[0].minor.yy41; +} + yymsp[0].minor.yy41 = yylhsminor.yy41; + break; case 336: /* filter_over ::= filter_clause */ { yylhsminor.yy41 = (Window*)sqlite3DbMallocZero(pParse->db, sizeof(Window)); @@ -166406,53 +175974,56 @@ static YYACTIONTYPE yy_reduce( /* (352) table_option_set ::= table_option (OPTIMIZED OUT) */ assert(yyruleno!=352); /* (353) columnlist ::= columnlist COMMA columnname carglist */ yytestcase(yyruleno==353); /* (354) columnlist ::= columnname carglist */ yytestcase(yyruleno==354); - /* (355) nm ::= ID|INDEXED */ yytestcase(yyruleno==355); + /* (355) nm ::= ID|INDEXED|JOIN_KW */ yytestcase(yyruleno==355); /* (356) nm ::= STRING */ yytestcase(yyruleno==356); - /* (357) nm ::= JOIN_KW */ yytestcase(yyruleno==357); - /* (358) typetoken ::= typename */ yytestcase(yyruleno==358); - /* (359) typename ::= ID|STRING */ yytestcase(yyruleno==359); - /* (360) signed ::= plus_num (OPTIMIZED OUT) */ assert(yyruleno!=360); - /* (361) signed ::= minus_num (OPTIMIZED OUT) */ assert(yyruleno!=361); - /* (362) carglist ::= carglist ccons */ yytestcase(yyruleno==362); - /* (363) carglist ::= */ yytestcase(yyruleno==363); - /* (364) ccons ::= NULL onconf */ yytestcase(yyruleno==364); - /* (365) ccons ::= GENERATED ALWAYS AS generated */ yytestcase(yyruleno==365); - /* (366) ccons ::= AS generated */ yytestcase(yyruleno==366); - /* (367) conslist_opt ::= COMMA conslist */ yytestcase(yyruleno==367); - /* (368) conslist ::= conslist tconscomma tcons */ yytestcase(yyruleno==368); - /* (369) conslist ::= tcons (OPTIMIZED OUT) */ assert(yyruleno!=369); - /* (370) tconscomma ::= */ yytestcase(yyruleno==370); - /* (371) defer_subclause_opt ::= defer_subclause (OPTIMIZED OUT) */ assert(yyruleno!=371); - /* (372) resolvetype ::= raisetype (OPTIMIZED OUT) */ assert(yyruleno!=372); - /* (373) selectnowith ::= oneselect (OPTIMIZED OUT) */ assert(yyruleno!=373); - /* (374) oneselect ::= values */ yytestcase(yyruleno==374); - /* (375) sclp ::= selcollist COMMA */ yytestcase(yyruleno==375); - /* (376) as ::= ID|STRING */ yytestcase(yyruleno==376); + /* (357) typetoken ::= typename */ yytestcase(yyruleno==357); + /* (358) typename ::= ID|STRING */ yytestcase(yyruleno==358); + /* (359) signed ::= plus_num (OPTIMIZED OUT) */ assert(yyruleno!=359); + /* (360) signed ::= minus_num (OPTIMIZED OUT) */ assert(yyruleno!=360); + /* (361) carglist ::= carglist ccons */ yytestcase(yyruleno==361); + /* (362) carglist ::= */ yytestcase(yyruleno==362); + /* (363) ccons ::= NULL onconf */ yytestcase(yyruleno==363); + /* (364) ccons ::= GENERATED ALWAYS AS generated */ yytestcase(yyruleno==364); + /* (365) ccons ::= AS generated */ yytestcase(yyruleno==365); + /* (366) conslist_opt ::= COMMA conslist */ yytestcase(yyruleno==366); + /* (367) conslist ::= conslist tconscomma tcons */ yytestcase(yyruleno==367); + /* (368) conslist ::= tcons (OPTIMIZED OUT) */ assert(yyruleno!=368); + /* (369) tconscomma ::= */ yytestcase(yyruleno==369); + /* (370) defer_subclause_opt ::= defer_subclause (OPTIMIZED OUT) */ assert(yyruleno!=370); + /* (371) resolvetype ::= raisetype (OPTIMIZED OUT) */ assert(yyruleno!=371); + /* (372) selectnowith ::= oneselect (OPTIMIZED OUT) */ assert(yyruleno!=372); + /* (373) oneselect ::= values */ yytestcase(yyruleno==373); + /* (374) sclp ::= selcollist COMMA */ yytestcase(yyruleno==374); + /* (375) as ::= ID|STRING */ yytestcase(yyruleno==375); + /* (376) indexed_opt ::= indexed_by (OPTIMIZED OUT) */ assert(yyruleno!=376); /* (377) returning ::= */ yytestcase(yyruleno==377); /* (378) expr ::= term (OPTIMIZED OUT) */ assert(yyruleno!=378); /* (379) likeop ::= LIKE_KW|MATCH */ yytestcase(yyruleno==379); - /* (380) exprlist ::= nexprlist */ yytestcase(yyruleno==380); - /* (381) nmnum ::= plus_num (OPTIMIZED OUT) */ assert(yyruleno!=381); - /* (382) nmnum ::= nm (OPTIMIZED OUT) */ assert(yyruleno!=382); - /* (383) nmnum ::= ON */ yytestcase(yyruleno==383); - /* (384) nmnum ::= DELETE */ yytestcase(yyruleno==384); - /* (385) nmnum ::= DEFAULT */ yytestcase(yyruleno==385); - /* (386) plus_num ::= INTEGER|FLOAT */ yytestcase(yyruleno==386); - /* (387) foreach_clause ::= */ yytestcase(yyruleno==387); - /* (388) foreach_clause ::= FOR EACH ROW */ yytestcase(yyruleno==388); - /* (389) trnm ::= nm */ yytestcase(yyruleno==389); - /* (390) tridxby ::= */ yytestcase(yyruleno==390); - /* (391) database_kw_opt ::= DATABASE */ yytestcase(yyruleno==391); - /* (392) database_kw_opt ::= */ yytestcase(yyruleno==392); - /* (393) kwcolumn_opt ::= */ yytestcase(yyruleno==393); - /* (394) kwcolumn_opt ::= COLUMNKW */ yytestcase(yyruleno==394); - /* (395) vtabarglist ::= vtabarg */ yytestcase(yyruleno==395); - /* (396) vtabarglist ::= vtabarglist COMMA vtabarg */ yytestcase(yyruleno==396); - /* (397) vtabarg ::= vtabarg vtabargtoken */ yytestcase(yyruleno==397); - /* (398) anylist ::= */ yytestcase(yyruleno==398); - /* (399) anylist ::= anylist LP anylist RP */ yytestcase(yyruleno==399); - /* (400) anylist ::= anylist ANY */ yytestcase(yyruleno==400); - /* (401) with ::= */ yytestcase(yyruleno==401); + /* (380) case_operand ::= expr */ yytestcase(yyruleno==380); + /* (381) exprlist ::= nexprlist */ yytestcase(yyruleno==381); + /* (382) nmnum ::= plus_num (OPTIMIZED OUT) */ assert(yyruleno!=382); + /* (383) nmnum ::= nm (OPTIMIZED OUT) */ assert(yyruleno!=383); + /* (384) nmnum ::= ON */ yytestcase(yyruleno==384); + /* (385) nmnum ::= DELETE */ yytestcase(yyruleno==385); + /* (386) nmnum ::= DEFAULT */ yytestcase(yyruleno==386); + /* (387) plus_num ::= INTEGER|FLOAT */ yytestcase(yyruleno==387); + /* (388) foreach_clause ::= */ yytestcase(yyruleno==388); + /* (389) foreach_clause ::= FOR EACH ROW */ yytestcase(yyruleno==389); + /* (390) trnm ::= nm */ yytestcase(yyruleno==390); + /* (391) tridxby ::= */ yytestcase(yyruleno==391); + /* (392) database_kw_opt ::= DATABASE */ yytestcase(yyruleno==392); + /* (393) database_kw_opt ::= */ yytestcase(yyruleno==393); + /* (394) kwcolumn_opt ::= */ yytestcase(yyruleno==394); + /* (395) kwcolumn_opt ::= COLUMNKW */ yytestcase(yyruleno==395); + /* (396) vtabarglist ::= vtabarg */ yytestcase(yyruleno==396); + /* (397) vtabarglist ::= vtabarglist COMMA vtabarg */ yytestcase(yyruleno==397); + /* (398) vtabarg ::= vtabarg vtabargtoken */ yytestcase(yyruleno==398); + /* (399) anylist ::= */ yytestcase(yyruleno==399); + /* (400) anylist ::= anylist LP anylist RP */ yytestcase(yyruleno==400); + /* (401) anylist ::= anylist ANY */ yytestcase(yyruleno==401); + /* (402) with ::= */ yytestcase(yyruleno==402); + /* (403) windowdefn_list ::= windowdefn (OPTIMIZED OUT) */ assert(yyruleno!=403); + /* (404) window ::= frame_opt (OPTIMIZED OUT) */ assert(yyruleno!=404); break; /********** End reduce actions ************************************************/ }; @@ -167028,7 +176599,7 @@ static const unsigned char aKWHash[127] = { /* aKWNext[] forms the hash collision chain. If aKWHash[i]==0 ** then the i-th keyword has no more hash collisions. Otherwise, ** the next keyword with the same hash is aKWHash[i]-1. */ -static const unsigned char aKWNext[147] = { +static const unsigned char aKWNext[148] = {0, 0, 0, 0, 0, 4, 0, 43, 0, 0, 106, 114, 0, 0, 0, 2, 0, 0, 143, 0, 0, 0, 13, 0, 0, 0, 0, 141, 0, 0, 119, 52, 0, 0, 137, 12, 0, 0, 62, 0, @@ -167043,7 +176614,7 @@ static const unsigned char aKWNext[147] = { 102, 0, 0, 87, }; /* aKWLen[i] is the length (in bytes) of the i-th keyword */ -static const unsigned char aKWLen[147] = { +static const unsigned char aKWLen[148] = {0, 7, 7, 5, 4, 6, 4, 5, 3, 6, 7, 3, 6, 6, 7, 7, 3, 8, 2, 6, 5, 4, 4, 3, 10, 4, 7, 6, 9, 4, 2, 6, 5, 9, 9, 4, 7, 3, 2, 4, @@ -167059,7 +176630,7 @@ static const unsigned char aKWLen[147] = { }; /* aKWOffset[i] is the index into zKWText[] of the start of ** the text for the i-th keyword. */ -static const unsigned short int aKWOffset[147] = { +static const unsigned short int aKWOffset[148] = {0, 0, 2, 2, 8, 9, 14, 16, 20, 23, 25, 25, 29, 33, 36, 41, 46, 48, 53, 54, 59, 62, 65, 67, 69, 78, 81, 86, 90, 90, 94, 99, 101, 105, 111, 119, 123, 123, 123, 126, @@ -167074,7 +176645,7 @@ static const unsigned short int aKWOffset[147] = { 648, 650, 655, 659, }; /* aKWCode[i] is the parser symbol code for the i-th keyword */ -static const unsigned char aKWCode[147] = { +static const unsigned char aKWCode[148] = {0, TK_REINDEX, TK_INDEXED, TK_INDEX, TK_DESC, TK_ESCAPE, TK_EACH, TK_CHECK, TK_KEY, TK_BEFORE, TK_FOREIGN, TK_FOR, TK_IGNORE, TK_LIKE_KW, TK_EXPLAIN, TK_INSTEAD, @@ -167241,185 +176812,185 @@ static const unsigned char aKWCode[147] = { static int keywordCode(const char *z, int n, int *pType){ int i, j; const char *zKW; - if( n>=2 ){ - i = ((charMap(z[0])*4) ^ (charMap(z[n-1])*3) ^ n*1) % 127; - for(i=((int)aKWHash[i])-1; i>=0; i=((int)aKWNext[i])-1){ - if( aKWLen[i]!=n ) continue; - zKW = &zKWText[aKWOffset[i]]; + assert( n>=2 ); + i = ((charMap(z[0])*4) ^ (charMap(z[n-1])*3) ^ n*1) % 127; + for(i=(int)aKWHash[i]; i>0; i=aKWNext[i]){ + if( aKWLen[i]!=n ) continue; + zKW = &zKWText[aKWOffset[i]]; #ifdef SQLITE_ASCII - if( (z[0]&~0x20)!=zKW[0] ) continue; - if( (z[1]&~0x20)!=zKW[1] ) continue; - j = 2; - while( j<n && (z[j]&~0x20)==zKW[j] ){ j++; } + if( (z[0]&~0x20)!=zKW[0] ) continue; + if( (z[1]&~0x20)!=zKW[1] ) continue; + j = 2; + while( j<n && (z[j]&~0x20)==zKW[j] ){ j++; } #endif #ifdef SQLITE_EBCDIC - if( toupper(z[0])!=zKW[0] ) continue; - if( toupper(z[1])!=zKW[1] ) continue; - j = 2; - while( j<n && toupper(z[j])==zKW[j] ){ j++; } -#endif - if( j<n ) continue; - testcase( i==0 ); /* REINDEX */ - testcase( i==1 ); /* INDEXED */ - testcase( i==2 ); /* INDEX */ - testcase( i==3 ); /* DESC */ - testcase( i==4 ); /* ESCAPE */ - testcase( i==5 ); /* EACH */ - testcase( i==6 ); /* CHECK */ - testcase( i==7 ); /* KEY */ - testcase( i==8 ); /* BEFORE */ - testcase( i==9 ); /* FOREIGN */ - testcase( i==10 ); /* FOR */ - testcase( i==11 ); /* IGNORE */ - testcase( i==12 ); /* REGEXP */ - testcase( i==13 ); /* EXPLAIN */ - testcase( i==14 ); /* INSTEAD */ - testcase( i==15 ); /* ADD */ - testcase( i==16 ); /* DATABASE */ - testcase( i==17 ); /* AS */ - testcase( i==18 ); /* SELECT */ - testcase( i==19 ); /* TABLE */ - testcase( i==20 ); /* LEFT */ - testcase( i==21 ); /* THEN */ - testcase( i==22 ); /* END */ - testcase( i==23 ); /* DEFERRABLE */ - testcase( i==24 ); /* ELSE */ - testcase( i==25 ); /* EXCLUDE */ - testcase( i==26 ); /* DELETE */ - testcase( i==27 ); /* TEMPORARY */ - testcase( i==28 ); /* TEMP */ - testcase( i==29 ); /* OR */ - testcase( i==30 ); /* ISNULL */ - testcase( i==31 ); /* NULLS */ - testcase( i==32 ); /* SAVEPOINT */ - testcase( i==33 ); /* INTERSECT */ - testcase( i==34 ); /* TIES */ - testcase( i==35 ); /* NOTNULL */ - testcase( i==36 ); /* NOT */ - testcase( i==37 ); /* NO */ - testcase( i==38 ); /* NULL */ - testcase( i==39 ); /* LIKE */ - testcase( i==40 ); /* EXCEPT */ - testcase( i==41 ); /* TRANSACTION */ - testcase( i==42 ); /* ACTION */ - testcase( i==43 ); /* ON */ - testcase( i==44 ); /* NATURAL */ - testcase( i==45 ); /* ALTER */ - testcase( i==46 ); /* RAISE */ - testcase( i==47 ); /* EXCLUSIVE */ - testcase( i==48 ); /* EXISTS */ - testcase( i==49 ); /* CONSTRAINT */ - testcase( i==50 ); /* INTO */ - testcase( i==51 ); /* OFFSET */ - testcase( i==52 ); /* OF */ - testcase( i==53 ); /* SET */ - testcase( i==54 ); /* TRIGGER */ - testcase( i==55 ); /* RANGE */ - testcase( i==56 ); /* GENERATED */ - testcase( i==57 ); /* DETACH */ - testcase( i==58 ); /* HAVING */ - testcase( i==59 ); /* GLOB */ - testcase( i==60 ); /* BEGIN */ - testcase( i==61 ); /* INNER */ - testcase( i==62 ); /* REFERENCES */ - testcase( i==63 ); /* UNIQUE */ - testcase( i==64 ); /* QUERY */ - testcase( i==65 ); /* WITHOUT */ - testcase( i==66 ); /* WITH */ - testcase( i==67 ); /* OUTER */ - testcase( i==68 ); /* RELEASE */ - testcase( i==69 ); /* ATTACH */ - testcase( i==70 ); /* BETWEEN */ - testcase( i==71 ); /* NOTHING */ - testcase( i==72 ); /* GROUPS */ - testcase( i==73 ); /* GROUP */ - testcase( i==74 ); /* CASCADE */ - testcase( i==75 ); /* ASC */ - testcase( i==76 ); /* DEFAULT */ - testcase( i==77 ); /* CASE */ - testcase( i==78 ); /* COLLATE */ - testcase( i==79 ); /* CREATE */ - testcase( i==80 ); /* CURRENT_DATE */ - testcase( i==81 ); /* IMMEDIATE */ - testcase( i==82 ); /* JOIN */ - testcase( i==83 ); /* INSERT */ - testcase( i==84 ); /* MATCH */ - testcase( i==85 ); /* PLAN */ - testcase( i==86 ); /* ANALYZE */ - testcase( i==87 ); /* PRAGMA */ - testcase( i==88 ); /* MATERIALIZED */ - testcase( i==89 ); /* DEFERRED */ - testcase( i==90 ); /* DISTINCT */ - testcase( i==91 ); /* IS */ - testcase( i==92 ); /* UPDATE */ - testcase( i==93 ); /* VALUES */ - testcase( i==94 ); /* VIRTUAL */ - testcase( i==95 ); /* ALWAYS */ - testcase( i==96 ); /* WHEN */ - testcase( i==97 ); /* WHERE */ - testcase( i==98 ); /* RECURSIVE */ - testcase( i==99 ); /* ABORT */ - testcase( i==100 ); /* AFTER */ - testcase( i==101 ); /* RENAME */ - testcase( i==102 ); /* AND */ - testcase( i==103 ); /* DROP */ - testcase( i==104 ); /* PARTITION */ - testcase( i==105 ); /* AUTOINCREMENT */ - testcase( i==106 ); /* TO */ - testcase( i==107 ); /* IN */ - testcase( i==108 ); /* CAST */ - testcase( i==109 ); /* COLUMN */ - testcase( i==110 ); /* COMMIT */ - testcase( i==111 ); /* CONFLICT */ - testcase( i==112 ); /* CROSS */ - testcase( i==113 ); /* CURRENT_TIMESTAMP */ - testcase( i==114 ); /* CURRENT_TIME */ - testcase( i==115 ); /* CURRENT */ - testcase( i==116 ); /* PRECEDING */ - testcase( i==117 ); /* FAIL */ - testcase( i==118 ); /* LAST */ - testcase( i==119 ); /* FILTER */ - testcase( i==120 ); /* REPLACE */ - testcase( i==121 ); /* FIRST */ - testcase( i==122 ); /* FOLLOWING */ - testcase( i==123 ); /* FROM */ - testcase( i==124 ); /* FULL */ - testcase( i==125 ); /* LIMIT */ - testcase( i==126 ); /* IF */ - testcase( i==127 ); /* ORDER */ - testcase( i==128 ); /* RESTRICT */ - testcase( i==129 ); /* OTHERS */ - testcase( i==130 ); /* OVER */ - testcase( i==131 ); /* RETURNING */ - testcase( i==132 ); /* RIGHT */ - testcase( i==133 ); /* ROLLBACK */ - testcase( i==134 ); /* ROWS */ - testcase( i==135 ); /* ROW */ - testcase( i==136 ); /* UNBOUNDED */ - testcase( i==137 ); /* UNION */ - testcase( i==138 ); /* USING */ - testcase( i==139 ); /* VACUUM */ - testcase( i==140 ); /* VIEW */ - testcase( i==141 ); /* WINDOW */ - testcase( i==142 ); /* DO */ - testcase( i==143 ); /* BY */ - testcase( i==144 ); /* INITIALLY */ - testcase( i==145 ); /* ALL */ - testcase( i==146 ); /* PRIMARY */ - *pType = aKWCode[i]; - break; - } + if( toupper(z[0])!=zKW[0] ) continue; + if( toupper(z[1])!=zKW[1] ) continue; + j = 2; + while( j<n && toupper(z[j])==zKW[j] ){ j++; } +#endif + if( j<n ) continue; + testcase( i==1 ); /* REINDEX */ + testcase( i==2 ); /* INDEXED */ + testcase( i==3 ); /* INDEX */ + testcase( i==4 ); /* DESC */ + testcase( i==5 ); /* ESCAPE */ + testcase( i==6 ); /* EACH */ + testcase( i==7 ); /* CHECK */ + testcase( i==8 ); /* KEY */ + testcase( i==9 ); /* BEFORE */ + testcase( i==10 ); /* FOREIGN */ + testcase( i==11 ); /* FOR */ + testcase( i==12 ); /* IGNORE */ + testcase( i==13 ); /* REGEXP */ + testcase( i==14 ); /* EXPLAIN */ + testcase( i==15 ); /* INSTEAD */ + testcase( i==16 ); /* ADD */ + testcase( i==17 ); /* DATABASE */ + testcase( i==18 ); /* AS */ + testcase( i==19 ); /* SELECT */ + testcase( i==20 ); /* TABLE */ + testcase( i==21 ); /* LEFT */ + testcase( i==22 ); /* THEN */ + testcase( i==23 ); /* END */ + testcase( i==24 ); /* DEFERRABLE */ + testcase( i==25 ); /* ELSE */ + testcase( i==26 ); /* EXCLUDE */ + testcase( i==27 ); /* DELETE */ + testcase( i==28 ); /* TEMPORARY */ + testcase( i==29 ); /* TEMP */ + testcase( i==30 ); /* OR */ + testcase( i==31 ); /* ISNULL */ + testcase( i==32 ); /* NULLS */ + testcase( i==33 ); /* SAVEPOINT */ + testcase( i==34 ); /* INTERSECT */ + testcase( i==35 ); /* TIES */ + testcase( i==36 ); /* NOTNULL */ + testcase( i==37 ); /* NOT */ + testcase( i==38 ); /* NO */ + testcase( i==39 ); /* NULL */ + testcase( i==40 ); /* LIKE */ + testcase( i==41 ); /* EXCEPT */ + testcase( i==42 ); /* TRANSACTION */ + testcase( i==43 ); /* ACTION */ + testcase( i==44 ); /* ON */ + testcase( i==45 ); /* NATURAL */ + testcase( i==46 ); /* ALTER */ + testcase( i==47 ); /* RAISE */ + testcase( i==48 ); /* EXCLUSIVE */ + testcase( i==49 ); /* EXISTS */ + testcase( i==50 ); /* CONSTRAINT */ + testcase( i==51 ); /* INTO */ + testcase( i==52 ); /* OFFSET */ + testcase( i==53 ); /* OF */ + testcase( i==54 ); /* SET */ + testcase( i==55 ); /* TRIGGER */ + testcase( i==56 ); /* RANGE */ + testcase( i==57 ); /* GENERATED */ + testcase( i==58 ); /* DETACH */ + testcase( i==59 ); /* HAVING */ + testcase( i==60 ); /* GLOB */ + testcase( i==61 ); /* BEGIN */ + testcase( i==62 ); /* INNER */ + testcase( i==63 ); /* REFERENCES */ + testcase( i==64 ); /* UNIQUE */ + testcase( i==65 ); /* QUERY */ + testcase( i==66 ); /* WITHOUT */ + testcase( i==67 ); /* WITH */ + testcase( i==68 ); /* OUTER */ + testcase( i==69 ); /* RELEASE */ + testcase( i==70 ); /* ATTACH */ + testcase( i==71 ); /* BETWEEN */ + testcase( i==72 ); /* NOTHING */ + testcase( i==73 ); /* GROUPS */ + testcase( i==74 ); /* GROUP */ + testcase( i==75 ); /* CASCADE */ + testcase( i==76 ); /* ASC */ + testcase( i==77 ); /* DEFAULT */ + testcase( i==78 ); /* CASE */ + testcase( i==79 ); /* COLLATE */ + testcase( i==80 ); /* CREATE */ + testcase( i==81 ); /* CURRENT_DATE */ + testcase( i==82 ); /* IMMEDIATE */ + testcase( i==83 ); /* JOIN */ + testcase( i==84 ); /* INSERT */ + testcase( i==85 ); /* MATCH */ + testcase( i==86 ); /* PLAN */ + testcase( i==87 ); /* ANALYZE */ + testcase( i==88 ); /* PRAGMA */ + testcase( i==89 ); /* MATERIALIZED */ + testcase( i==90 ); /* DEFERRED */ + testcase( i==91 ); /* DISTINCT */ + testcase( i==92 ); /* IS */ + testcase( i==93 ); /* UPDATE */ + testcase( i==94 ); /* VALUES */ + testcase( i==95 ); /* VIRTUAL */ + testcase( i==96 ); /* ALWAYS */ + testcase( i==97 ); /* WHEN */ + testcase( i==98 ); /* WHERE */ + testcase( i==99 ); /* RECURSIVE */ + testcase( i==100 ); /* ABORT */ + testcase( i==101 ); /* AFTER */ + testcase( i==102 ); /* RENAME */ + testcase( i==103 ); /* AND */ + testcase( i==104 ); /* DROP */ + testcase( i==105 ); /* PARTITION */ + testcase( i==106 ); /* AUTOINCREMENT */ + testcase( i==107 ); /* TO */ + testcase( i==108 ); /* IN */ + testcase( i==109 ); /* CAST */ + testcase( i==110 ); /* COLUMN */ + testcase( i==111 ); /* COMMIT */ + testcase( i==112 ); /* CONFLICT */ + testcase( i==113 ); /* CROSS */ + testcase( i==114 ); /* CURRENT_TIMESTAMP */ + testcase( i==115 ); /* CURRENT_TIME */ + testcase( i==116 ); /* CURRENT */ + testcase( i==117 ); /* PRECEDING */ + testcase( i==118 ); /* FAIL */ + testcase( i==119 ); /* LAST */ + testcase( i==120 ); /* FILTER */ + testcase( i==121 ); /* REPLACE */ + testcase( i==122 ); /* FIRST */ + testcase( i==123 ); /* FOLLOWING */ + testcase( i==124 ); /* FROM */ + testcase( i==125 ); /* FULL */ + testcase( i==126 ); /* LIMIT */ + testcase( i==127 ); /* IF */ + testcase( i==128 ); /* ORDER */ + testcase( i==129 ); /* RESTRICT */ + testcase( i==130 ); /* OTHERS */ + testcase( i==131 ); /* OVER */ + testcase( i==132 ); /* RETURNING */ + testcase( i==133 ); /* RIGHT */ + testcase( i==134 ); /* ROLLBACK */ + testcase( i==135 ); /* ROWS */ + testcase( i==136 ); /* ROW */ + testcase( i==137 ); /* UNBOUNDED */ + testcase( i==138 ); /* UNION */ + testcase( i==139 ); /* USING */ + testcase( i==140 ); /* VACUUM */ + testcase( i==141 ); /* VIEW */ + testcase( i==142 ); /* WINDOW */ + testcase( i==143 ); /* DO */ + testcase( i==144 ); /* BY */ + testcase( i==145 ); /* INITIALLY */ + testcase( i==146 ); /* ALL */ + testcase( i==147 ); /* PRIMARY */ + *pType = aKWCode[i]; + break; } return n; } SQLITE_PRIVATE int sqlite3KeywordCode(const unsigned char *z, int n){ int id = TK_ID; - keywordCode((char*)z, n, &id); + if( n>=2 ) keywordCode((char*)z, n, &id); return id; } #define SQLITE_N_KEYWORD 147 SQLITE_API int sqlite3_keyword_name(int i,const char **pzName,int *pnName){ if( i<0 || i>=SQLITE_N_KEYWORD ) return SQLITE_ERROR; + i++; *pzName = zKWText + aKWOffset[i]; *pnName = aKWLen[i]; return SQLITE_OK; @@ -167718,7 +177289,7 @@ SQLITE_PRIVATE int sqlite3GetToken(const unsigned char *z, int *tokenType){ testcase( z[0]=='0' ); testcase( z[0]=='1' ); testcase( z[0]=='2' ); testcase( z[0]=='3' ); testcase( z[0]=='4' ); testcase( z[0]=='5' ); testcase( z[0]=='6' ); testcase( z[0]=='7' ); testcase( z[0]=='8' ); - testcase( z[0]=='9' ); + testcase( z[0]=='9' ); testcase( z[0]=='.' ); *tokenType = TK_INTEGER; #ifndef SQLITE_OMIT_HEX_INTEGER if( z[0]=='0' && (z[1]=='x' || z[1]=='X') && sqlite3Isxdigit(z[2]) ){ @@ -167790,7 +177361,8 @@ SQLITE_PRIVATE int sqlite3GetToken(const unsigned char *z, int *tokenType){ return i; } case CC_KYWD0: { - for(i=1; aiClass[z[i]]<=CC_KYWD; i++){} + if( aiClass[z[1]]>CC_KYWD ){ i = 1; break; } + for(i=2; aiClass[z[i]]<=CC_KYWD; i++){} if( IdChar(z[i]) ){ /* This token started out using characters that can appear in keywords, ** but z[i] is a character not allowed within keywords, so this must @@ -167899,6 +177471,7 @@ SQLITE_PRIVATE int sqlite3RunParser(Parse *pParse, const char *zSql){ mxSqlLen -= n; if( mxSqlLen<0 ){ pParse->rc = SQLITE_TOOBIG; + pParse->nErr++; break; } #ifndef SQLITE_OMIT_WINDOWFUNC @@ -167995,7 +177568,7 @@ SQLITE_PRIVATE int sqlite3RunParser(Parse *pParse, const char *zSql){ if( pParse->pNewTrigger && !IN_RENAME_OBJECT ){ sqlite3DeleteTrigger(db, pParse->pNewTrigger); } - sqlite3DbFree(db, pParse->pVList); + if( pParse->pVList ) sqlite3DbNNFreeNN(db, pParse->pVList); db->pParse = pParentParse; assert( nErr==0 || pParse->rc!=SQLITE_OK ); return nErr; @@ -168568,30 +178141,20 @@ static int sqlite3TestExtInit(sqlite3 *db){ ** Forward declarations of external module initializer functions ** for modules that need them. */ -#ifdef SQLITE_ENABLE_FTS1 -SQLITE_PRIVATE int sqlite3Fts1Init(sqlite3*); -#endif -#ifdef SQLITE_ENABLE_FTS2 -SQLITE_PRIVATE int sqlite3Fts2Init(sqlite3*); -#endif #ifdef SQLITE_ENABLE_FTS5 SQLITE_PRIVATE int sqlite3Fts5Init(sqlite3*); #endif #ifdef SQLITE_ENABLE_STMTVTAB SQLITE_PRIVATE int sqlite3StmtVtabInit(sqlite3*); #endif - +#ifdef SQLITE_EXTRA_AUTOEXT +int SQLITE_EXTRA_AUTOEXT(sqlite3*); +#endif /* ** An array of pointers to extension initializer functions for ** built-in extensions. */ static int (*const sqlite3BuiltinExtensions[])(sqlite3*) = { -#ifdef SQLITE_ENABLE_FTS1 - sqlite3Fts1Init, -#endif -#ifdef SQLITE_ENABLE_FTS2 - sqlite3Fts2Init, -#endif #ifdef SQLITE_ENABLE_FTS3 sqlite3Fts3Init, #endif @@ -168620,6 +178183,9 @@ static int (*const sqlite3BuiltinExtensions[])(sqlite3*) = { #ifdef SQLITE_ENABLE_BYTECODE_VTAB sqlite3VdbeBytecodeVtabInit, #endif +#ifdef SQLITE_EXTRA_AUTOEXT + SQLITE_EXTRA_AUTOEXT, +#endif }; #ifndef SQLITE_AMALGAMATION @@ -168694,6 +178260,32 @@ SQLITE_API char *sqlite3_temp_directory = 0; SQLITE_API char *sqlite3_data_directory = 0; /* +** Determine whether or not high-precision (long double) floating point +** math works correctly on CPU currently running. +*/ +static SQLITE_NOINLINE int hasHighPrecisionDouble(int rc){ + if( sizeof(LONGDOUBLE_TYPE)<=8 ){ + /* If the size of "long double" is not more than 8, then + ** high-precision math is not possible. */ + return 0; + }else{ + /* Just because sizeof(long double)>8 does not mean that the underlying + ** hardware actually supports high-precision floating point. For example, + ** clearing the 0x100 bit in the floating-point control word on Intel + ** processors will make long double work like double, even though long + ** double takes up more space. The only way to determine if long double + ** actually works is to run an experiment. */ + LONGDOUBLE_TYPE a, b, c; + rc++; + a = 1.0+rc*0.1; + b = 1.0e+18+rc*25.0; + c = a+b; + return b!=c; + } +} + + +/* ** Initialize SQLite. ** ** This routine must be called to initialize the memory allocation, @@ -168888,6 +178480,12 @@ SQLITE_API int sqlite3_initialize(void){ } #endif + /* Experimentally determine if high-precision floating point is + ** available. */ +#ifndef SQLITE_OMIT_WSD + sqlite3Config.bUseLongDouble = hasHighPrecisionDouble(rc); +#endif + return rc; } @@ -168957,9 +178555,21 @@ SQLITE_API int sqlite3_config(int op, ...){ va_list ap; int rc = SQLITE_OK; - /* sqlite3_config() shall return SQLITE_MISUSE if it is invoked while - ** the SQLite library is in use. */ - if( sqlite3GlobalConfig.isInit ) return SQLITE_MISUSE_BKPT; + /* sqlite3_config() normally returns SQLITE_MISUSE if it is invoked while + ** the SQLite library is in use. Except, a few selected opcodes + ** are allowed. + */ + if( sqlite3GlobalConfig.isInit ){ + static const u64 mAnytimeConfigOption = 0 + | MASKBIT64( SQLITE_CONFIG_LOG ) + | MASKBIT64( SQLITE_CONFIG_PCACHE_HDRSZ ) + ; + if( op<0 || op>63 || (MASKBIT64(op) & mAnytimeConfigOption)==0 ){ + return SQLITE_MISUSE_BKPT; + } + testcase( op==SQLITE_CONFIG_LOG ); + testcase( op==SQLITE_CONFIG_PCACHE_HDRSZ ); + } va_start(ap, op); switch( op ){ @@ -169028,6 +178638,7 @@ SQLITE_API int sqlite3_config(int op, ...){ break; } case SQLITE_CONFIG_MEMSTATUS: { + assert( !sqlite3GlobalConfig.isInit ); /* Cannot change at runtime */ /* EVIDENCE-OF: R-61275-35157 The SQLITE_CONFIG_MEMSTATUS option takes ** single argument of type int, interpreted as a boolean, which enables ** or disables the collection of memory allocation statistics. */ @@ -169151,8 +178762,10 @@ SQLITE_API int sqlite3_config(int op, ...){ ** sqlite3GlobalConfig.xLog = va_arg(ap, void(*)(void*,int,const char*)); */ typedef void(*LOGFUNC_t)(void*,int,const char*); - sqlite3GlobalConfig.xLog = va_arg(ap, LOGFUNC_t); - sqlite3GlobalConfig.pLogArg = va_arg(ap, void*); + LOGFUNC_t xLog = va_arg(ap, LOGFUNC_t); + void *pLogArg = va_arg(ap, void*); + AtomicStore(&sqlite3GlobalConfig.xLog, xLog); + AtomicStore(&sqlite3GlobalConfig.pLogArg, pLogArg); break; } @@ -169166,7 +178779,8 @@ SQLITE_API int sqlite3_config(int op, ...){ ** argument of type int. If non-zero, then URI handling is globally ** enabled. If the parameter is zero, then URI handling is globally ** disabled. */ - sqlite3GlobalConfig.bOpenUri = va_arg(ap, int); + int bOpenUri = va_arg(ap, int); + AtomicStore(&sqlite3GlobalConfig.bOpenUri, bOpenUri); break; } @@ -169351,18 +178965,19 @@ static int setupLookaside(sqlite3 *db, void *pBuf, int sz, int cnt){ db->lookaside.bMalloced = pBuf==0 ?1:0; db->lookaside.nSlot = nBig+nSm; }else{ - db->lookaside.pStart = db; + db->lookaside.pStart = 0; #ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE db->lookaside.pSmallInit = 0; db->lookaside.pSmallFree = 0; - db->lookaside.pMiddle = db; + db->lookaside.pMiddle = 0; #endif /* SQLITE_OMIT_TWOSIZE_LOOKASIDE */ - db->lookaside.pEnd = db; + db->lookaside.pEnd = 0; db->lookaside.bDisable = 1; db->lookaside.sz = 0; db->lookaside.bMalloced = 0; db->lookaside.nSlot = 0; } + db->lookaside.pTrueEnd = db->lookaside.pEnd; assert( sqlite3LookasideUsed(db,0)==0 ); #endif /* SQLITE_OMIT_LOOKASIDE */ return SQLITE_OK; @@ -169441,6 +179056,11 @@ SQLITE_API int sqlite3_db_cacheflush(sqlite3 *db){ SQLITE_API int sqlite3_db_config(sqlite3 *db, int op, ...){ va_list ap; int rc; + +#ifdef SQLITE_ENABLE_API_ARMOR + if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; +#endif + sqlite3_mutex_enter(db->mutex); va_start(ap, op); switch( op ){ case SQLITE_DBCONFIG_MAINDBNAME: { @@ -169479,6 +179099,8 @@ SQLITE_API int sqlite3_db_config(sqlite3 *db, int op, ...){ { SQLITE_DBCONFIG_DQS_DML, SQLITE_DqsDML }, { SQLITE_DBCONFIG_LEGACY_FILE_FORMAT, SQLITE_LegacyFileFmt }, { SQLITE_DBCONFIG_TRUSTED_SCHEMA, SQLITE_TrustedSchema }, + { SQLITE_DBCONFIG_STMT_SCANSTATUS, SQLITE_StmtScanStatus }, + { SQLITE_DBCONFIG_REVERSE_SCANORDER, SQLITE_ReverseOrder }, }; unsigned int i; rc = SQLITE_ERROR; /* IMP: R-42790-23372 */ @@ -169506,6 +179128,7 @@ SQLITE_API int sqlite3_db_config(sqlite3 *db, int op, ...){ } } va_end(ap); + sqlite3_mutex_leave(db->mutex); return rc; } @@ -169766,6 +179389,14 @@ static int sqlite3Close(sqlite3 *db, int forceZombie){ } #endif + while( db->pDbData ){ + DbClientData *p = db->pDbData; + db->pDbData = p->pNext; + assert( p->pData!=0 ); + if( p->xDestructor ) p->xDestructor(p->pData); + sqlite3_free(p); + } + /* Convert the connection into a zombie and then close it. */ db->eOpenState = SQLITE_STATE_ZOMBIE; @@ -170090,6 +179721,7 @@ SQLITE_PRIVATE const char *sqlite3ErrName(int rc){ case SQLITE_NOTICE_RECOVER_WAL: zName = "SQLITE_NOTICE_RECOVER_WAL";break; case SQLITE_NOTICE_RECOVER_ROLLBACK: zName = "SQLITE_NOTICE_RECOVER_ROLLBACK"; break; + case SQLITE_NOTICE_RBU: zName = "SQLITE_NOTICE_RBU"; break; case SQLITE_WARNING: zName = "SQLITE_WARNING"; break; case SQLITE_WARNING_AUTOINDEX: zName = "SQLITE_WARNING_AUTOINDEX"; break; case SQLITE_DONE: zName = "SQLITE_DONE"; break; @@ -170182,9 +179814,9 @@ static int sqliteDefaultBusyCallback( void *ptr, /* Database connection */ int count /* Number of times table has been busy */ ){ -#if SQLITE_OS_WIN || HAVE_USLEEP +#if SQLITE_OS_WIN || !defined(HAVE_NANOSLEEP) || HAVE_NANOSLEEP /* This case is for systems that have support for sleeping for fractions of - ** a second. Examples: All windows systems, unix systems with usleep() */ + ** a second. Examples: All windows systems, unix systems with nanosleep() */ static const u8 delays[] = { 1, 2, 5, 10, 15, 20, 25, 25, 25, 50, 50, 100 }; static const u8 totals[] = @@ -170319,7 +179951,9 @@ SQLITE_API int sqlite3_busy_timeout(sqlite3 *db, int ms){ */ SQLITE_API void sqlite3_interrupt(sqlite3 *db){ #ifdef SQLITE_ENABLE_API_ARMOR - if( !sqlite3SafetyCheckOk(db) && (db==0 || db->eOpenState!=SQLITE_STATE_ZOMBIE) ){ + if( !sqlite3SafetyCheckOk(db) + && (db==0 || db->eOpenState!=SQLITE_STATE_ZOMBIE) + ){ (void)SQLITE_MISUSE_BKPT; return; } @@ -170327,6 +179961,21 @@ SQLITE_API void sqlite3_interrupt(sqlite3 *db){ AtomicStore(&db->u1.isInterrupted, 1); } +/* +** Return true or false depending on whether or not an interrupt is +** pending on connection db. +*/ +SQLITE_API int sqlite3_is_interrupted(sqlite3 *db){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( !sqlite3SafetyCheckOk(db) + && (db==0 || db->eOpenState!=SQLITE_STATE_ZOMBIE) + ){ + (void)SQLITE_MISUSE_BKPT; + return 0; + } +#endif + return AtomicLoad(&db->u1.isInterrupted)!=0; +} /* ** This function is exactly the same as sqlite3_create_function(), except @@ -170365,13 +180014,13 @@ SQLITE_PRIVATE int sqlite3CreateFunc( assert( SQLITE_FUNC_CONSTANT==SQLITE_DETERMINISTIC ); assert( SQLITE_FUNC_DIRECT==SQLITE_DIRECTONLY ); extraFlags = enc & (SQLITE_DETERMINISTIC|SQLITE_DIRECTONLY| - SQLITE_SUBTYPE|SQLITE_INNOCUOUS); + SQLITE_SUBTYPE|SQLITE_INNOCUOUS|SQLITE_RESULT_SUBTYPE); enc &= (SQLITE_FUNC_ENCMASK|SQLITE_ANY); /* The SQLITE_INNOCUOUS flag is the same bit as SQLITE_FUNC_UNSAFE. But ** the meaning is inverted. So flip the bit. */ assert( SQLITE_FUNC_UNSAFE==SQLITE_INNOCUOUS ); - extraFlags ^= SQLITE_FUNC_UNSAFE; + extraFlags ^= SQLITE_FUNC_UNSAFE; /* tag-20230109-1 */ #ifndef SQLITE_OMIT_UTF16 @@ -170389,11 +180038,11 @@ SQLITE_PRIVATE int sqlite3CreateFunc( case SQLITE_ANY: { int rc; rc = sqlite3CreateFunc(db, zFunctionName, nArg, - (SQLITE_UTF8|extraFlags)^SQLITE_FUNC_UNSAFE, + (SQLITE_UTF8|extraFlags)^SQLITE_FUNC_UNSAFE, /* tag-20230109-1 */ pUserData, xSFunc, xStep, xFinal, xValue, xInverse, pDestructor); if( rc==SQLITE_OK ){ rc = sqlite3CreateFunc(db, zFunctionName, nArg, - (SQLITE_UTF16LE|extraFlags)^SQLITE_FUNC_UNSAFE, + (SQLITE_UTF16LE|extraFlags)^SQLITE_FUNC_UNSAFE, /* tag-20230109-1*/ pUserData, xSFunc, xStep, xFinal, xValue, xInverse, pDestructor); } if( rc!=SQLITE_OK ){ @@ -170642,7 +180291,7 @@ SQLITE_API int sqlite3_overload_function( rc = sqlite3FindFunction(db, zName, nArg, SQLITE_UTF8, 0)!=0; sqlite3_mutex_leave(db->mutex); if( rc ) return SQLITE_OK; - zCopy = sqlite3_mprintf(zName); + zCopy = sqlite3_mprintf("%s", zName); if( zCopy==0 ) return SQLITE_NOMEM; return sqlite3_create_function_v2(db, zName, nArg, SQLITE_UTF8, zCopy, sqlite3InvalidFunction, 0, 0, sqlite3_free); @@ -170822,6 +180471,12 @@ SQLITE_API void *sqlite3_preupdate_hook( void *pArg /* First callback argument */ ){ void *pRet; + +#ifdef SQLITE_ENABLE_API_ARMOR + if( db==0 ){ + return 0; + } +#endif sqlite3_mutex_enter(db->mutex); pRet = db->pPreUpdateArg; db->xPreUpdateCallback = xCallback; @@ -170968,7 +180623,7 @@ SQLITE_API int sqlite3_wal_checkpoint_v2( if( eMode<SQLITE_CHECKPOINT_PASSIVE || eMode>SQLITE_CHECKPOINT_TRUNCATE ){ /* EVIDENCE-OF: R-03996-12088 The M parameter must be a valid checkpoint ** mode: */ - return SQLITE_MISUSE; + return SQLITE_MISUSE_BKPT; } sqlite3_mutex_enter(db->mutex); @@ -171445,9 +181100,9 @@ SQLITE_PRIVATE int sqlite3ParseUri( assert( *pzErrMsg==0 ); - if( ((flags & SQLITE_OPEN_URI) /* IMP: R-48725-32206 */ - || sqlite3GlobalConfig.bOpenUri) /* IMP: R-51689-46548 */ - && nUri>=5 && memcmp(zUri, "file:", 5)==0 /* IMP: R-57884-37496 */ + if( ((flags & SQLITE_OPEN_URI) /* IMP: R-48725-32206 */ + || AtomicLoad(&sqlite3GlobalConfig.bOpenUri)) /* IMP: R-51689-46548 */ + && nUri>=5 && memcmp(zUri, "file:", 5)==0 /* IMP: R-57884-37496 */ ){ char *zOpt; int eState; /* Parser state when parsing URI */ @@ -171805,7 +181460,7 @@ static int openDatabase( ** 0 off off ** ** Legacy behavior is 3 (double-quoted string literals are allowed anywhere) -** and so that is the default. But developers are encouranged to use +** and so that is the default. But developers are encouraged to use ** -DSQLITE_DQS=0 (best) or -DSQLITE_DQS=1 (second choice) if possible. */ #if !defined(SQLITE_DQS) @@ -171854,6 +181509,9 @@ static int openDatabase( #if defined(SQLITE_DEFAULT_LEGACY_ALTER_TABLE) | SQLITE_LegacyAlter #endif +#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) + | SQLITE_StmtScanStatus +#endif ; sqlite3HashInit(&db->aCollSeq); #ifndef SQLITE_OMIT_VIRTUALTABLE @@ -171876,6 +181534,19 @@ static int openDatabase( goto opendb_out; } +#if SQLITE_OS_UNIX && defined(SQLITE_OS_KV_OPTIONAL) + /* Process magic filenames ":localStorage:" and ":sessionStorage:" */ + if( zFilename && zFilename[0]==':' ){ + if( strcmp(zFilename, ":localStorage:")==0 ){ + zFilename = "file:local?vfs=kvvfs"; + flags |= SQLITE_OPEN_URI; + }else if( strcmp(zFilename, ":sessionStorage:")==0 ){ + zFilename = "file:session?vfs=kvvfs"; + flags |= SQLITE_OPEN_URI; + } + } +#endif /* SQLITE_OS_UNIX && defined(SQLITE_OS_KV_OPTIONAL) */ + /* Parse the filename/URI argument ** ** Only allow sensible combinations of bits in the flags argument. @@ -171906,6 +181577,12 @@ static int openDatabase( sqlite3_free(zErrMsg); goto opendb_out; } + assert( db->pVfs!=0 ); +#if SQLITE_OS_KV || defined(SQLITE_OS_KV_OPTIONAL) + if( sqlite3_stricmp(db->pVfs->zName, "kvvfs")==0 ){ + db->temp_store = 2; + } +#endif /* Open the backend database driver */ rc = sqlite3BtreeOpen(db->pVfs, zOpen, db, &db->aDb[0].pBt, 0, @@ -172183,6 +181860,69 @@ SQLITE_API int sqlite3_collation_needed16( } #endif /* SQLITE_OMIT_UTF16 */ +/* +** Find existing client data. +*/ +SQLITE_API void *sqlite3_get_clientdata(sqlite3 *db, const char *zName){ + DbClientData *p; + sqlite3_mutex_enter(db->mutex); + for(p=db->pDbData; p; p=p->pNext){ + if( strcmp(p->zName, zName)==0 ){ + void *pResult = p->pData; + sqlite3_mutex_leave(db->mutex); + return pResult; + } + } + sqlite3_mutex_leave(db->mutex); + return 0; +} + +/* +** Add new client data to a database connection. +*/ +SQLITE_API int sqlite3_set_clientdata( + sqlite3 *db, /* Attach client data to this connection */ + const char *zName, /* Name of the client data */ + void *pData, /* The client data itself */ + void (*xDestructor)(void*) /* Destructor */ +){ + DbClientData *p, **pp; + sqlite3_mutex_enter(db->mutex); + pp = &db->pDbData; + for(p=db->pDbData; p && strcmp(p->zName,zName); p=p->pNext){ + pp = &p->pNext; + } + if( p ){ + assert( p->pData!=0 ); + if( p->xDestructor ) p->xDestructor(p->pData); + if( pData==0 ){ + *pp = p->pNext; + sqlite3_free(p); + sqlite3_mutex_leave(db->mutex); + return SQLITE_OK; + } + }else if( pData==0 ){ + sqlite3_mutex_leave(db->mutex); + return SQLITE_OK; + }else{ + size_t n = strlen(zName); + p = sqlite3_malloc64( sizeof(DbClientData)+n+1 ); + if( p==0 ){ + if( xDestructor ) xDestructor(pData); + sqlite3_mutex_leave(db->mutex); + return SQLITE_NOMEM; + } + memcpy(p->zName, zName, n+1); + p->pNext = db->pDbData; + db->pDbData = p; + } + p->pData = pData; + p->xDestructor = xDestructor; + sqlite3_mutex_leave(db->mutex); + return SQLITE_OK; +} + + #ifndef SQLITE_OMIT_DEPRECATED /* ** This function is now an anachronism. It used to be used to recover from a @@ -172318,7 +182058,7 @@ SQLITE_API int sqlite3_table_column_metadata( /* Find the column for which info is requested */ if( zColumnName==0 ){ - /* Query for existance of table only */ + /* Query for existence of table only */ }else{ for(iCol=0; iCol<pTab->nCol; iCol++){ pCol = &pTab->aCol[iCol]; @@ -172399,7 +182139,7 @@ SQLITE_API int sqlite3_sleep(int ms){ /* This function works in milliseconds, but the underlying OsSleep() ** API uses microseconds. Hence the 1000's. */ - rc = (sqlite3OsSleep(pVfs, 1000*ms)/1000); + rc = (sqlite3OsSleep(pVfs, ms<0 ? 0 : 1000*ms)/1000); return rc; } @@ -172455,6 +182195,9 @@ SQLITE_API int sqlite3_file_control(sqlite3 *db, const char *zDbName, int op, vo sqlite3BtreeSetPageSize(pBtree, 0, iNew, 0); } rc = SQLITE_OK; + }else if( op==SQLITE_FCNTL_RESET_CACHE ){ + sqlite3BtreeClearCache(pBtree); + rc = SQLITE_OK; }else{ int nSave = db->busyHandler.nBusy; rc = sqlite3OsFileControl(fd, op, pArg); @@ -172529,6 +182272,28 @@ SQLITE_API int sqlite3_test_control(int op, ...){ } #endif + /* sqlite3_test_control(SQLITE_TESTCTRL_FK_NO_ACTION, sqlite3 *db, int b); + ** + ** If b is true, then activate the SQLITE_FkNoAction setting. If b is + ** false then clearn that setting. If the SQLITE_FkNoAction setting is + ** abled, all foreign key ON DELETE and ON UPDATE actions behave as if + ** they were NO ACTION, regardless of how they are defined. + ** + ** NB: One must usually run "PRAGMA writable_schema=RESET" after + ** using this test-control, before it will take full effect. failing + ** to reset the schema can result in some unexpected behavior. + */ + case SQLITE_TESTCTRL_FK_NO_ACTION: { + sqlite3 *db = va_arg(ap, sqlite3*); + int b = va_arg(ap, int); + if( b ){ + db->flags |= SQLITE_FkNoAction; + }else{ + db->flags &= ~SQLITE_FkNoAction; + } + break; + } + /* ** sqlite3_test_control(BITVEC_TEST, size, program) ** @@ -172624,6 +182389,30 @@ SQLITE_API int sqlite3_test_control(int op, ...){ volatile int x = 0; assert( /*side-effects-ok*/ (x = va_arg(ap,int))!=0 ); rc = x; +#if defined(SQLITE_DEBUG) + /* Invoke these debugging routines so that the compiler does not + ** issue "defined but not used" warnings. */ + if( x==9999 ){ + sqlite3ShowExpr(0); + sqlite3ShowExpr(0); + sqlite3ShowExprList(0); + sqlite3ShowIdList(0); + sqlite3ShowSrcList(0); + sqlite3ShowWith(0); + sqlite3ShowUpsert(0); +#ifndef SQLITE_OMIT_TRIGGER + sqlite3ShowTriggerStep(0); + sqlite3ShowTriggerStepList(0); + sqlite3ShowTrigger(0); + sqlite3ShowTriggerList(0); +#endif +#ifndef SQLITE_OMIT_WINDOWFUNC + sqlite3ShowWindow(0); + sqlite3ShowWinFunc(0); +#endif + sqlite3ShowSelect(0); + } +#endif break; } @@ -172733,7 +182522,7 @@ SQLITE_API int sqlite3_test_control(int op, ...){ ** formed and never corrupt. This flag is clear by default, indicating that ** database files might have arbitrary corruption. Setting the flag during ** testing causes certain assert() statements in the code to be activated - ** that demonstrat invariants on well-formed database files. + ** that demonstrate invariants on well-formed database files. */ case SQLITE_TESTCTRL_NEVER_CORRUPT: { sqlite3GlobalConfig.neverCorrupt = va_arg(ap, int); @@ -172885,19 +182674,19 @@ SQLITE_API int sqlite3_test_control(int op, ...){ ** ** "ptr" is a pointer to a u32. ** - ** op==0 Store the current sqlite3SelectTrace in *ptr - ** op==1 Set sqlite3SelectTrace to the value *ptr - ** op==3 Store the current sqlite3WhereTrace in *ptr + ** op==0 Store the current sqlite3TreeTrace in *ptr + ** op==1 Set sqlite3TreeTrace to the value *ptr + ** op==2 Store the current sqlite3WhereTrace in *ptr ** op==3 Set sqlite3WhereTrace to the value *ptr */ case SQLITE_TESTCTRL_TRACEFLAGS: { int opTrace = va_arg(ap, int); u32 *ptr = va_arg(ap, u32*); switch( opTrace ){ - case 0: *ptr = sqlite3SelectTrace; break; - case 1: sqlite3SelectTrace = *ptr; break; - case 2: *ptr = sqlite3WhereTrace; break; - case 3: sqlite3WhereTrace = *ptr; break; + case 0: *ptr = sqlite3TreeTrace; break; + case 1: sqlite3TreeTrace = *ptr; break; + case 2: *ptr = sqlite3WhereTrace; break; + case 3: sqlite3WhereTrace = *ptr; break; } break; } @@ -172914,12 +182703,31 @@ SQLITE_API int sqlite3_test_control(int op, ...){ case SQLITE_TESTCTRL_LOGEST: { double rIn = va_arg(ap, double); LogEst rLogEst = sqlite3LogEstFromDouble(rIn); - u64 iInt = sqlite3LogEstToInt(rLogEst); - va_arg(ap, int*)[0] = rLogEst; - va_arg(ap, u64*)[0] = iInt; - va_arg(ap, int*)[0] = sqlite3LogEst(iInt); + int *pI1 = va_arg(ap,int*); + u64 *pU64 = va_arg(ap,u64*); + int *pI2 = va_arg(ap,int*); + *pI1 = rLogEst; + *pU64 = sqlite3LogEstToInt(rLogEst); + *pI2 = sqlite3LogEst(*pU64); + break; + } + +#if !defined(SQLITE_OMIT_WSD) + /* sqlite3_test_control(SQLITE_TESTCTRL_USELONGDOUBLE, int X); + ** + ** X<0 Make no changes to the bUseLongDouble. Just report value. + ** X==0 Disable bUseLongDouble + ** X==1 Enable bUseLongDouble + ** X>=2 Set bUseLongDouble to its default value for this platform + */ + case SQLITE_TESTCTRL_USELONGDOUBLE: { + int b = va_arg(ap, int); + if( b>=2 ) b = hasHighPrecisionDouble(b); + if( b>=0 ) sqlite3Config.bUseLongDouble = b>0; + rc = sqlite3Config.bUseLongDouble!=0; break; } +#endif #if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_WSD) @@ -172951,6 +182759,28 @@ SQLITE_API int sqlite3_test_control(int op, ...){ break; } #endif + + /* sqlite3_test_control(SQLITE_TESTCTRL_JSON_SELFCHECK, &onOff); + ** + ** Activate or deactivate validation of JSONB that is generated from + ** text. Off by default, as the validation is slow. Validation is + ** only available if compiled using SQLITE_DEBUG. + ** + ** If onOff is initially 1, then turn it on. If onOff is initially + ** off, turn it off. If onOff is initially -1, then change onOff + ** to be the current setting. + */ + case SQLITE_TESTCTRL_JSON_SELFCHECK: { +#if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_WSD) + int *pOnOff = va_arg(ap, int*); + if( *pOnOff<0 ){ + *pOnOff = sqlite3Config.bJsonSelfcheck; + }else{ + sqlite3Config.bJsonSelfcheck = (u8)((*pOnOff)&0xff); + } +#endif + break; + } } va_end(ap); #endif /* SQLITE_UNTESTABLE */ @@ -172991,7 +182821,7 @@ static char *appendText(char *p, const char *z){ ** Memory layout must be compatible with that generated by the pager ** and expected by sqlite3_uri_parameter() and databaseName(). */ -SQLITE_API char *sqlite3_create_filename( +SQLITE_API const char *sqlite3_create_filename( const char *zDatabase, const char *zJournal, const char *zWal, @@ -173027,10 +182857,10 @@ SQLITE_API char *sqlite3_create_filename( ** error to call this routine with any parameter other than a pointer ** previously obtained from sqlite3_create_filename() or a NULL pointer. */ -SQLITE_API void sqlite3_free_filename(char *p){ +SQLITE_API void sqlite3_free_filename(const char *p){ if( p==0 ) return; - p = (char*)databaseName(p); - sqlite3_free(p - 4); + p = databaseName(p); + sqlite3_free((char*)p - 4); } @@ -173133,6 +182963,24 @@ SQLITE_PRIVATE Btree *sqlite3DbNameToBtree(sqlite3 *db, const char *zDbName){ } /* +** Return the name of the N-th database schema. Return NULL if N is out +** of range. +*/ +SQLITE_API const char *sqlite3_db_name(sqlite3 *db, int N){ +#ifdef SQLITE_ENABLE_API_ARMOR + if( !sqlite3SafetyCheckOk(db) ){ + (void)SQLITE_MISUSE_BKPT; + return 0; + } +#endif + if( N<0 || N>=db->nDb ){ + return 0; + }else{ + return db->aDb[N].zDbSName; + } +} + +/* ** Return the filename of the database associated with a database ** connection. */ @@ -173203,7 +183051,7 @@ SQLITE_API int sqlite3_snapshot_get( } /* -** Open a read-transaction on the snapshot idendified by pSnapshot. +** Open a read-transaction on the snapshot identified by pSnapshot. */ SQLITE_API int sqlite3_snapshot_open( sqlite3 *db, @@ -173263,8 +183111,8 @@ SQLITE_API int sqlite3_snapshot_open( */ SQLITE_API int sqlite3_snapshot_recover(sqlite3 *db, const char *zDb){ int rc = SQLITE_ERROR; - int iDb; #ifndef SQLITE_OMIT_WAL + int iDb; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ @@ -173310,7 +183158,7 @@ SQLITE_API int sqlite3_compileoption_used(const char *zOptName){ int nOpt; const char **azCompileOpt; -#if SQLITE_ENABLE_API_ARMOR +#ifdef SQLITE_ENABLE_API_ARMOR if( zOptName==0 ){ (void)SQLITE_MISUSE_BKPT; return 0; @@ -173505,6 +183353,9 @@ SQLITE_API int sqlite3_unlock_notify( ){ int rc = SQLITE_OK; +#ifdef SQLITE_ENABLE_API_ARMOR + if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; +#endif sqlite3_mutex_enter(db->mutex); enterMutex(); @@ -174526,6 +184377,7 @@ struct Fts3Table { int nPgsz; /* Page size for host database */ char *zSegmentsTbl; /* Name of %_segments table */ sqlite3_blob *pSegments; /* Blob handle open on %_segments table */ + int iSavepoint; /* ** The following array of hash tables is used to buffer pending index @@ -174819,7 +184671,7 @@ struct Fts3MultiSegReader { int nAdvance; /* How many seg-readers to advance */ Fts3SegFilter *pFilter; /* Pointer to filter object */ char *aBuffer; /* Buffer to merge doclists in */ - int nBuffer; /* Allocated size of aBuffer[] in bytes */ + i64 nBuffer; /* Allocated size of aBuffer[] in bytes */ int iColFilter; /* If >=0, filter for this column */ int bRestart; @@ -174911,6 +184763,10 @@ SQLITE_PRIVATE int sqlite3FtsUnicodeIsalnum(int); SQLITE_PRIVATE int sqlite3FtsUnicodeIsdiacritic(int); #endif +SQLITE_PRIVATE int sqlite3Fts3ExprIterate(Fts3Expr*, int (*x)(Fts3Expr*,int,void*), void*); + +SQLITE_PRIVATE int sqlite3Fts3IntegrityCheck(Fts3Table *p, int *pbOk); + #endif /* !SQLITE_CORE || SQLITE_ENABLE_FTS3 */ #endif /* _FTSINT_H */ @@ -175267,6 +185123,7 @@ static void fts3DeclareVtab(int *pRc, Fts3Table *p){ zLanguageid = (p->zLanguageid ? p->zLanguageid : "__langid"); sqlite3_vtab_config(p->db, SQLITE_VTAB_CONSTRAINT_SUPPORT, 1); + sqlite3_vtab_config(p->db, SQLITE_VTAB_INNOCUOUS); /* Create a list of user columns for the virtual table */ zCols = sqlite3_mprintf("%Q, ", p->azColumn[0]); @@ -177515,7 +187372,7 @@ static int fts3TermSelectMerge( ** ** Similar padding is added in the fts3DoclistOrMerge() function. */ - pTS->aaOutput[0] = sqlite3_malloc(nDoclist + FTS3_VARINT_MAX + 1); + pTS->aaOutput[0] = sqlite3_malloc64((i64)nDoclist + FTS3_VARINT_MAX + 1); pTS->anOutput[0] = nDoclist; if( pTS->aaOutput[0] ){ memcpy(pTS->aaOutput[0], aDoclist, nDoclist); @@ -178516,6 +188373,8 @@ static int fts3RenameMethod( rc = sqlite3Fts3PendingTermsFlush(p); } + p->bIgnoreSavepoint = 1; + if( p->zContentTbl==0 ){ fts3DbExec(&rc, db, "ALTER TABLE %Q.'%q_content' RENAME TO '%q_content';", @@ -178543,6 +188402,8 @@ static int fts3RenameMethod( "ALTER TABLE %Q.'%q_segdir' RENAME TO '%q_segdir';", p->zDb, p->zName, zName ); + + p->bIgnoreSavepoint = 0; return rc; } @@ -178553,12 +188414,28 @@ static int fts3RenameMethod( */ static int fts3SavepointMethod(sqlite3_vtab *pVtab, int iSavepoint){ int rc = SQLITE_OK; - UNUSED_PARAMETER(iSavepoint); - assert( ((Fts3Table *)pVtab)->inTransaction ); - assert( ((Fts3Table *)pVtab)->mxSavepoint <= iSavepoint ); - TESTONLY( ((Fts3Table *)pVtab)->mxSavepoint = iSavepoint ); - if( ((Fts3Table *)pVtab)->bIgnoreSavepoint==0 ){ - rc = fts3SyncMethod(pVtab); + Fts3Table *pTab = (Fts3Table*)pVtab; + assert( pTab->inTransaction ); + assert( pTab->mxSavepoint<=iSavepoint ); + TESTONLY( pTab->mxSavepoint = iSavepoint ); + + if( pTab->bIgnoreSavepoint==0 ){ + if( fts3HashCount(&pTab->aIndex[0].hPending)>0 ){ + char *zSql = sqlite3_mprintf("INSERT INTO %Q.%Q(%Q) VALUES('flush')", + pTab->zDb, pTab->zName, pTab->zName + ); + if( zSql ){ + pTab->bIgnoreSavepoint = 1; + rc = sqlite3_exec(pTab->db, zSql, 0, 0, 0); + pTab->bIgnoreSavepoint = 0; + sqlite3_free(zSql); + }else{ + rc = SQLITE_NOMEM; + } + } + if( rc==SQLITE_OK ){ + pTab->iSavepoint = iSavepoint+1; + } } return rc; } @@ -178569,12 +188446,11 @@ static int fts3SavepointMethod(sqlite3_vtab *pVtab, int iSavepoint){ ** This is a no-op. */ static int fts3ReleaseMethod(sqlite3_vtab *pVtab, int iSavepoint){ - TESTONLY( Fts3Table *p = (Fts3Table*)pVtab ); - UNUSED_PARAMETER(iSavepoint); - UNUSED_PARAMETER(pVtab); - assert( p->inTransaction ); - assert( p->mxSavepoint >= iSavepoint ); - TESTONLY( p->mxSavepoint = iSavepoint-1 ); + Fts3Table *pTab = (Fts3Table*)pVtab; + assert( pTab->inTransaction ); + assert( pTab->mxSavepoint >= iSavepoint ); + TESTONLY( pTab->mxSavepoint = iSavepoint-1 ); + pTab->iSavepoint = iSavepoint; return SQLITE_OK; } @@ -178584,11 +188460,13 @@ static int fts3ReleaseMethod(sqlite3_vtab *pVtab, int iSavepoint){ ** Discard the contents of the pending terms table. */ static int fts3RollbackToMethod(sqlite3_vtab *pVtab, int iSavepoint){ - Fts3Table *p = (Fts3Table*)pVtab; + Fts3Table *pTab = (Fts3Table*)pVtab; UNUSED_PARAMETER(iSavepoint); - assert( p->inTransaction ); - TESTONLY( p->mxSavepoint = iSavepoint ); - sqlite3Fts3PendingTermsClear(p); + assert( pTab->inTransaction ); + TESTONLY( pTab->mxSavepoint = iSavepoint ); + if( (iSavepoint+1)<=pTab->iSavepoint ){ + sqlite3Fts3PendingTermsClear(pTab); + } return SQLITE_OK; } @@ -178607,8 +188485,40 @@ static int fts3ShadowName(const char *zName){ return 0; } +/* +** Implementation of the xIntegrity() method on the FTS3/FTS4 virtual +** table. +*/ +static int fts3IntegrityMethod( + sqlite3_vtab *pVtab, /* The virtual table to be checked */ + const char *zSchema, /* Name of schema in which pVtab lives */ + const char *zTabname, /* Name of the pVTab table */ + int isQuick, /* True if this is a quick_check */ + char **pzErr /* Write error message here */ +){ + Fts3Table *p = (Fts3Table*)pVtab; + int rc; + int bOk = 0; + + UNUSED_PARAMETER(isQuick); + rc = sqlite3Fts3IntegrityCheck(p, &bOk); + assert( rc!=SQLITE_CORRUPT_VTAB || bOk==0 ); + if( rc!=SQLITE_OK && rc!=SQLITE_CORRUPT_VTAB ){ + *pzErr = sqlite3_mprintf("unable to validate the inverted index for" + " FTS%d table %s.%s: %s", + p->bFts4 ? 4 : 3, zSchema, zTabname, sqlite3_errstr(rc)); + }else if( bOk==0 ){ + *pzErr = sqlite3_mprintf("malformed inverted index for FTS%d table %s.%s", + p->bFts4 ? 4 : 3, zSchema, zTabname); + } + sqlite3Fts3SegmentsClose(p); + return SQLITE_OK; +} + + + static const sqlite3_module fts3Module = { - /* iVersion */ 3, + /* iVersion */ 4, /* xCreate */ fts3CreateMethod, /* xConnect */ fts3ConnectMethod, /* xBestIndex */ fts3BestIndexMethod, @@ -178632,6 +188542,7 @@ static const sqlite3_module fts3Module = { /* xRelease */ fts3ReleaseMethod, /* xRollbackTo */ fts3RollbackToMethod, /* xShadowName */ fts3ShadowName, + /* xIntegrity */ fts3IntegrityMethod, }; /* @@ -178935,8 +188846,7 @@ static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){ char *aPoslist = 0; /* Position list for deferred tokens */ int nPoslist = 0; /* Number of bytes in aPoslist */ int iPrev = -1; /* Token number of previous deferred token */ - - assert( pPhrase->doclist.bFreeList==0 ); + char *aFree = (pPhrase->doclist.bFreeList ? pPhrase->doclist.pList : 0); for(iToken=0; iToken<pPhrase->nToken; iToken++){ Fts3PhraseToken *pToken = &pPhrase->aToken[iToken]; @@ -178950,6 +188860,7 @@ static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){ if( pList==0 ){ sqlite3_free(aPoslist); + sqlite3_free(aFree); pPhrase->doclist.pList = 0; pPhrase->doclist.nList = 0; return SQLITE_OK; @@ -178970,6 +188881,7 @@ static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){ nPoslist = (int)(aOut - aPoslist); if( nPoslist==0 ){ sqlite3_free(aPoslist); + sqlite3_free(aFree); pPhrase->doclist.pList = 0; pPhrase->doclist.nList = 0; return SQLITE_OK; @@ -179002,13 +188914,14 @@ static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){ nDistance = iPrev - nMaxUndeferred; } - aOut = (char *)sqlite3_malloc(nPoslist+8); + aOut = (char *)sqlite3Fts3MallocZero(nPoslist+FTS3_BUFFER_PADDING); if( !aOut ){ sqlite3_free(aPoslist); return SQLITE_NOMEM; } pPhrase->doclist.pList = aOut; + assert( p1 && p2 ); if( fts3PoslistPhraseMerge(&aOut, nDistance, 0, 1, &p1, &p2) ){ pPhrase->doclist.bFreeList = 1; pPhrase->doclist.nList = (int)(aOut - pPhrase->doclist.pList); @@ -179021,6 +188934,7 @@ static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){ } } + if( pPhrase->doclist.pList!=aFree ) sqlite3_free(aFree); return SQLITE_OK; } #endif /* SQLITE_DISABLE_FTS4_DEFERRED */ @@ -179369,7 +189283,7 @@ static int fts3EvalIncrPhraseNext( if( bEof==0 ){ int nList = 0; int nByte = a[p->nToken-1].nList; - char *aDoclist = sqlite3_malloc(nByte+FTS3_BUFFER_PADDING); + char *aDoclist = sqlite3_malloc64((i64)nByte+FTS3_BUFFER_PADDING); if( !aDoclist ) return SQLITE_NOMEM; memcpy(aDoclist, a[p->nToken-1].pList, nByte+1); memset(&aDoclist[nByte], 0, FTS3_BUFFER_PADDING); @@ -179911,9 +189825,8 @@ static void fts3EvalNextRow( Fts3Expr *pExpr, /* Expr. to advance to next matching row */ int *pRc /* IN/OUT: Error code */ ){ - if( *pRc==SQLITE_OK ){ + if( *pRc==SQLITE_OK && pExpr->bEof==0 ){ int bDescDoclist = pCsr->bDesc; /* Used by DOCID_CMP() macro */ - assert( pExpr->bEof==0 ); pExpr->bStart = 1; switch( pExpr->eType ){ @@ -180195,11 +190108,10 @@ static int fts3EvalTestExpr( default: { #ifndef SQLITE_DISABLE_FTS4_DEFERRED - if( pCsr->pDeferred - && (pExpr->iDocid==pCsr->iPrevId || pExpr->bDeferred) - ){ + if( pCsr->pDeferred && (pExpr->bDeferred || ( + pExpr->iDocid==pCsr->iPrevId && pExpr->pPhrase->doclist.pList + ))){ Fts3Phrase *pPhrase = pExpr->pPhrase; - assert( pExpr->bDeferred || pPhrase->doclist.bFreeList==0 ); if( pExpr->bDeferred ){ fts3EvalInvalidatePoslist(pPhrase); } @@ -180391,6 +190303,22 @@ static void fts3EvalUpdateCounts(Fts3Expr *pExpr, int nCol){ } /* +** This is an sqlite3Fts3ExprIterate() callback. If the Fts3Expr.aMI[] array +** has not yet been allocated, allocate and zero it. Otherwise, just zero +** it. +*/ +static int fts3AllocateMSI(Fts3Expr *pExpr, int iPhrase, void *pCtx){ + Fts3Table *pTab = (Fts3Table*)pCtx; + UNUSED_PARAMETER(iPhrase); + if( pExpr->aMI==0 ){ + pExpr->aMI = (u32 *)sqlite3_malloc64(pTab->nColumn * 3 * sizeof(u32)); + if( pExpr->aMI==0 ) return SQLITE_NOMEM; + } + memset(pExpr->aMI, 0, pTab->nColumn * 3 * sizeof(u32)); + return SQLITE_OK; +} + +/* ** Expression pExpr must be of type FTSQUERY_PHRASE. ** ** If it is not already allocated and populated, this function allocates and @@ -180411,7 +190339,6 @@ static int fts3EvalGatherStats( if( pExpr->aMI==0 ){ Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab; Fts3Expr *pRoot; /* Root of NEAR expression */ - Fts3Expr *p; /* Iterator used for several purposes */ sqlite3_int64 iPrevId = pCsr->iPrevId; sqlite3_int64 iDocid; @@ -180419,7 +190346,9 @@ static int fts3EvalGatherStats( /* Find the root of the NEAR expression */ pRoot = pExpr; - while( pRoot->pParent && pRoot->pParent->eType==FTSQUERY_NEAR ){ + while( pRoot->pParent + && (pRoot->pParent->eType==FTSQUERY_NEAR || pRoot->bDeferred) + ){ pRoot = pRoot->pParent; } iDocid = pRoot->iDocid; @@ -180427,14 +190356,8 @@ static int fts3EvalGatherStats( assert( pRoot->bStart ); /* Allocate space for the aMSI[] array of each FTSQUERY_PHRASE node */ - for(p=pRoot; p; p=p->pLeft){ - Fts3Expr *pE = (p->eType==FTSQUERY_PHRASE?p:p->pRight); - assert( pE->aMI==0 ); - pE->aMI = (u32 *)sqlite3_malloc64(pTab->nColumn * 3 * sizeof(u32)); - if( !pE->aMI ) return SQLITE_NOMEM; - memset(pE->aMI, 0, pTab->nColumn * 3 * sizeof(u32)); - } - + rc = sqlite3Fts3ExprIterate(pRoot, fts3AllocateMSI, (void*)pTab); + if( rc!=SQLITE_OK ) return rc; fts3EvalRestart(pCsr, pRoot, &rc); while( pCsr->isEof==0 && rc==SQLITE_OK ){ @@ -180590,6 +190513,7 @@ SQLITE_PRIVATE int sqlite3Fts3EvalPhrasePoslist( u8 bTreeEof = 0; Fts3Expr *p; /* Used to iterate from pExpr to root */ Fts3Expr *pNear; /* Most senior NEAR ancestor (or pExpr) */ + Fts3Expr *pRun; /* Closest non-deferred ancestor of pNear */ int bMatch; /* Check if this phrase descends from an OR expression node. If not, @@ -180604,25 +190528,30 @@ SQLITE_PRIVATE int sqlite3Fts3EvalPhrasePoslist( if( p->bEof ) bTreeEof = 1; } if( bOr==0 ) return SQLITE_OK; + pRun = pNear; + while( pRun->bDeferred ){ + assert( pRun->pParent ); + pRun = pRun->pParent; + } /* This is the descendent of an OR node. In this case we cannot use ** an incremental phrase. Load the entire doclist for the phrase ** into memory in this case. */ if( pPhrase->bIncr ){ - int bEofSave = pNear->bEof; - fts3EvalRestart(pCsr, pNear, &rc); - while( rc==SQLITE_OK && !pNear->bEof ){ - fts3EvalNextRow(pCsr, pNear, &rc); - if( bEofSave==0 && pNear->iDocid==iDocid ) break; + int bEofSave = pRun->bEof; + fts3EvalRestart(pCsr, pRun, &rc); + while( rc==SQLITE_OK && !pRun->bEof ){ + fts3EvalNextRow(pCsr, pRun, &rc); + if( bEofSave==0 && pRun->iDocid==iDocid ) break; } assert( rc!=SQLITE_OK || pPhrase->bIncr==0 ); - if( rc==SQLITE_OK && pNear->bEof!=bEofSave ){ + if( rc==SQLITE_OK && pRun->bEof!=bEofSave ){ rc = FTS_CORRUPT_VTAB; } } if( bTreeEof ){ - while( rc==SQLITE_OK && !pNear->bEof ){ - fts3EvalNextRow(pCsr, pNear, &rc); + while( rc==SQLITE_OK && !pRun->bEof ){ + fts3EvalNextRow(pCsr, pRun, &rc); } } if( rc!=SQLITE_OK ) return rc; @@ -181289,7 +191218,8 @@ SQLITE_PRIVATE int sqlite3Fts3InitAux(sqlite3 *db){ 0, /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ - 0 /* xShadowName */ + 0, /* xShadowName */ + 0 /* xIntegrity */ }; int rc; /* Return code */ @@ -183606,7 +193536,7 @@ static int porterNext( if( n>c->nAllocated ){ char *pNew; c->nAllocated = n+20; - pNew = sqlite3_realloc(c->zToken, c->nAllocated); + pNew = sqlite3_realloc64(c->zToken, c->nAllocated); if( !pNew ) return SQLITE_NOMEM; c->zToken = pNew; } @@ -184358,7 +194288,7 @@ static int simpleNext( if( n>c->nTokenAllocated ){ char *pNew; c->nTokenAllocated = n+20; - pNew = sqlite3_realloc(c->pToken, c->nTokenAllocated); + pNew = sqlite3_realloc64(c->pToken, c->nTokenAllocated); if( !pNew ) return SQLITE_NOMEM; c->pToken = pNew; } @@ -184855,7 +194785,8 @@ SQLITE_PRIVATE int sqlite3Fts3InitTok(sqlite3 *db, Fts3Hash *pHash, void(*xDestr 0, /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ - 0 /* xShadowName */ + 0, /* xShadowName */ + 0 /* xIntegrity */ }; int rc; /* Return code */ @@ -185520,7 +195451,7 @@ static int fts3PendingListAppendVarint( /* Allocate or grow the PendingList as required. */ if( !p ){ - p = sqlite3_malloc(sizeof(*p) + 100); + p = sqlite3_malloc64(sizeof(*p) + 100); if( !p ){ return SQLITE_NOMEM; } @@ -185529,14 +195460,14 @@ static int fts3PendingListAppendVarint( p->nData = 0; } else if( p->nData+FTS3_VARINT_MAX+1>p->nSpace ){ - int nNew = p->nSpace * 2; - p = sqlite3_realloc(p, sizeof(*p) + nNew); + i64 nNew = p->nSpace * 2; + p = sqlite3_realloc64(p, sizeof(*p) + nNew); if( !p ){ sqlite3_free(*pp); *pp = 0; return SQLITE_NOMEM; } - p->nSpace = nNew; + p->nSpace = (int)nNew; p->aData = (char *)&p[1]; } @@ -186093,7 +196024,7 @@ SQLITE_PRIVATE int sqlite3Fts3ReadBlock( int nByte = sqlite3_blob_bytes(p->pSegments); *pnBlob = nByte; if( paBlob ){ - char *aByte = sqlite3_malloc(nByte + FTS3_NODE_PADDING); + char *aByte = sqlite3_malloc64((i64)nByte + FTS3_NODE_PADDING); if( !aByte ){ rc = SQLITE_NOMEM; }else{ @@ -186210,7 +196141,7 @@ static int fts3SegReaderNext( int nTerm = fts3HashKeysize(pElem); if( (nTerm+1)>pReader->nTermAlloc ){ sqlite3_free(pReader->zTerm); - pReader->zTerm = (char*)sqlite3_malloc((nTerm+1)*2); + pReader->zTerm = (char*)sqlite3_malloc64(((i64)nTerm+1)*2); if( !pReader->zTerm ) return SQLITE_NOMEM; pReader->nTermAlloc = (nTerm+1)*2; } @@ -186218,7 +196149,7 @@ static int fts3SegReaderNext( pReader->zTerm[nTerm] = '\0'; pReader->nTerm = nTerm; - aCopy = (char*)sqlite3_malloc(nCopy); + aCopy = (char*)sqlite3_malloc64(nCopy); if( !aCopy ) return SQLITE_NOMEM; memcpy(aCopy, pList->aData, nCopy); pReader->nNode = pReader->nDoclist = nCopy; @@ -186505,7 +196436,7 @@ SQLITE_PRIVATE int sqlite3Fts3SegReaderNew( nExtra = nRoot + FTS3_NODE_PADDING; } - pReader = (Fts3SegReader *)sqlite3_malloc(sizeof(Fts3SegReader) + nExtra); + pReader = (Fts3SegReader *)sqlite3_malloc64(sizeof(Fts3SegReader) + nExtra); if( !pReader ){ return SQLITE_NOMEM; } @@ -186597,7 +196528,7 @@ SQLITE_PRIVATE int sqlite3Fts3SegReaderPending( if( nElem==nAlloc ){ Fts3HashElem **aElem2; nAlloc += 16; - aElem2 = (Fts3HashElem **)sqlite3_realloc( + aElem2 = (Fts3HashElem **)sqlite3_realloc64( aElem, nAlloc*sizeof(Fts3HashElem *) ); if( !aElem2 ){ @@ -186931,7 +196862,7 @@ static int fts3NodeAddTerm( ** this is not expected to be a serious problem. */ assert( pTree->aData==(char *)&pTree[1] ); - pTree->aData = (char *)sqlite3_malloc(nReq); + pTree->aData = (char *)sqlite3_malloc64(nReq); if( !pTree->aData ){ return SQLITE_NOMEM; } @@ -186949,7 +196880,7 @@ static int fts3NodeAddTerm( if( isCopyTerm ){ if( pTree->nMalloc<nTerm ){ - char *zNew = sqlite3_realloc(pTree->zMalloc, nTerm*2); + char *zNew = sqlite3_realloc64(pTree->zMalloc, (i64)nTerm*2); if( !zNew ){ return SQLITE_NOMEM; } @@ -186975,7 +196906,7 @@ static int fts3NodeAddTerm( ** now. Instead, the term is inserted into the parent of pTree. If pTree ** has no parent, one is created here. */ - pNew = (SegmentNode *)sqlite3_malloc(sizeof(SegmentNode) + p->nNodeSize); + pNew = (SegmentNode *)sqlite3_malloc64(sizeof(SegmentNode) + p->nNodeSize); if( !pNew ){ return SQLITE_NOMEM; } @@ -187113,7 +197044,7 @@ static int fts3SegWriterAdd( ){ int nPrefix; /* Size of term prefix in bytes */ int nSuffix; /* Size of term suffix in bytes */ - int nReq; /* Number of bytes required on leaf page */ + i64 nReq; /* Number of bytes required on leaf page */ int nData; SegmentWriter *pWriter = *ppWriter; @@ -187122,13 +197053,13 @@ static int fts3SegWriterAdd( sqlite3_stmt *pStmt; /* Allocate the SegmentWriter structure */ - pWriter = (SegmentWriter *)sqlite3_malloc(sizeof(SegmentWriter)); + pWriter = (SegmentWriter *)sqlite3_malloc64(sizeof(SegmentWriter)); if( !pWriter ) return SQLITE_NOMEM; memset(pWriter, 0, sizeof(SegmentWriter)); *ppWriter = pWriter; /* Allocate a buffer in which to accumulate data */ - pWriter->aData = (char *)sqlite3_malloc(p->nNodeSize); + pWriter->aData = (char *)sqlite3_malloc64(p->nNodeSize); if( !pWriter->aData ) return SQLITE_NOMEM; pWriter->nSize = p->nNodeSize; @@ -187203,7 +197134,7 @@ static int fts3SegWriterAdd( ** the buffer to make it large enough. */ if( nReq>pWriter->nSize ){ - char *aNew = sqlite3_realloc(pWriter->aData, nReq); + char *aNew = sqlite3_realloc64(pWriter->aData, nReq); if( !aNew ) return SQLITE_NOMEM; pWriter->aData = aNew; pWriter->nSize = nReq; @@ -187228,7 +197159,7 @@ static int fts3SegWriterAdd( */ if( isCopyTerm ){ if( nTerm>pWriter->nMalloc ){ - char *zNew = sqlite3_realloc(pWriter->zMalloc, nTerm*2); + char *zNew = sqlite3_realloc64(pWriter->zMalloc, (i64)nTerm*2); if( !zNew ){ return SQLITE_NOMEM; } @@ -187536,18 +197467,20 @@ static void fts3ColumnFilter( static int fts3MsrBufferData( Fts3MultiSegReader *pMsr, /* Multi-segment-reader handle */ char *pList, - int nList + i64 nList ){ - if( nList>pMsr->nBuffer ){ + if( (nList+FTS3_NODE_PADDING)>pMsr->nBuffer ){ char *pNew; - pMsr->nBuffer = nList*2; - pNew = (char *)sqlite3_realloc(pMsr->aBuffer, pMsr->nBuffer); + int nNew = nList*2 + FTS3_NODE_PADDING; + pNew = (char *)sqlite3_realloc64(pMsr->aBuffer, nNew); if( !pNew ) return SQLITE_NOMEM; pMsr->aBuffer = pNew; + pMsr->nBuffer = nNew; } assert( nList>0 ); memcpy(pMsr->aBuffer, pList, nList); + memset(&pMsr->aBuffer[nList], 0, FTS3_NODE_PADDING); return SQLITE_OK; } @@ -187597,7 +197530,7 @@ SQLITE_PRIVATE int sqlite3Fts3MsrIncrNext( fts3SegReaderSort(pMsr->apSegment, nMerge, j, xCmp); if( nList>0 && fts3SegReaderIsPending(apSegment[0]) ){ - rc = fts3MsrBufferData(pMsr, pList, nList+1); + rc = fts3MsrBufferData(pMsr, pList, (i64)nList+1); if( rc!=SQLITE_OK ) return rc; assert( (pMsr->aBuffer[nList] & 0xFE)==0x00 ); pList = pMsr->aBuffer; @@ -187734,11 +197667,11 @@ SQLITE_PRIVATE int sqlite3Fts3MsrIncrRestart(Fts3MultiSegReader *pCsr){ return SQLITE_OK; } -static int fts3GrowSegReaderBuffer(Fts3MultiSegReader *pCsr, int nReq){ +static int fts3GrowSegReaderBuffer(Fts3MultiSegReader *pCsr, i64 nReq){ if( nReq>pCsr->nBuffer ){ char *aNew; pCsr->nBuffer = nReq*2; - aNew = sqlite3_realloc(pCsr->aBuffer, pCsr->nBuffer); + aNew = sqlite3_realloc64(pCsr->aBuffer, pCsr->nBuffer); if( !aNew ){ return SQLITE_NOMEM; } @@ -187829,7 +197762,8 @@ SQLITE_PRIVATE int sqlite3Fts3SegReaderStep( ){ pCsr->nDoclist = apSegment[0]->nDoclist; if( fts3SegReaderIsPending(apSegment[0]) ){ - rc = fts3MsrBufferData(pCsr, apSegment[0]->aDoclist, pCsr->nDoclist); + rc = fts3MsrBufferData(pCsr, apSegment[0]->aDoclist, + (i64)pCsr->nDoclist); pCsr->aDoclist = pCsr->aBuffer; }else{ pCsr->aDoclist = apSegment[0]->aDoclist; @@ -187882,7 +197816,8 @@ SQLITE_PRIVATE int sqlite3Fts3SegReaderStep( nByte = sqlite3Fts3VarintLen(iDelta) + (isRequirePos?nList+1:0); - rc = fts3GrowSegReaderBuffer(pCsr, nByte+nDoclist+FTS3_NODE_PADDING); + rc = fts3GrowSegReaderBuffer(pCsr, + (i64)nByte+nDoclist+FTS3_NODE_PADDING); if( rc ) return rc; if( isFirst ){ @@ -187908,7 +197843,7 @@ SQLITE_PRIVATE int sqlite3Fts3SegReaderStep( fts3SegReaderSort(apSegment, nMerge, j, xCmp); } if( nDoclist>0 ){ - rc = fts3GrowSegReaderBuffer(pCsr, nDoclist+FTS3_NODE_PADDING); + rc = fts3GrowSegReaderBuffer(pCsr, (i64)nDoclist+FTS3_NODE_PADDING); if( rc ) return rc; memset(&pCsr->aBuffer[nDoclist], 0, FTS3_NODE_PADDING); pCsr->aDoclist = pCsr->aBuffer; @@ -188192,7 +198127,6 @@ SQLITE_PRIVATE int sqlite3Fts3PendingTermsFlush(Fts3Table *p){ rc = fts3SegmentMerge(p, p->iPrevLangid, i, FTS3_SEGCURSOR_PENDING); if( rc==SQLITE_DONE ) rc = SQLITE_OK; } - sqlite3Fts3PendingTermsClear(p); /* Determine the auto-incr-merge setting if unknown. If enabled, ** estimate the number of leaf blocks of content to be written @@ -188214,6 +198148,10 @@ SQLITE_PRIVATE int sqlite3Fts3PendingTermsFlush(Fts3Table *p){ rc = sqlite3_reset(pStmt); } } + + if( rc==SQLITE_OK ){ + sqlite3Fts3PendingTermsClear(p); + } return rc; } @@ -188621,7 +198559,7 @@ struct NodeReader { static void blobGrowBuffer(Blob *pBlob, int nMin, int *pRc){ if( *pRc==SQLITE_OK && nMin>pBlob->nAlloc ){ int nAlloc = nMin; - char *a = (char *)sqlite3_realloc(pBlob->a, nAlloc); + char *a = (char *)sqlite3_realloc64(pBlob->a, nAlloc); if( a ){ pBlob->nAlloc = nAlloc; pBlob->a = a; @@ -188770,6 +198708,8 @@ static int fts3IncrmergePush( pBlk->n += sqlite3Fts3PutVarint(&pBlk->a[pBlk->n], nPrefix); } pBlk->n += sqlite3Fts3PutVarint(&pBlk->a[pBlk->n], nSuffix); + assert( nPrefix+nSuffix<=nTerm ); + assert( nPrefix>=0 ); memcpy(&pBlk->a[pBlk->n], &zTerm[nPrefix], nSuffix); pBlk->n += nSuffix; @@ -188843,6 +198783,8 @@ static int fts3AppendToNode( blobGrowBuffer(pPrev, nTerm, &rc); if( rc!=SQLITE_OK ) return rc; + assert( pPrev!=0 ); + assert( pPrev->a!=0 ); nPrefix = fts3PrefixCompress(pPrev->a, pPrev->n, zTerm, nTerm); nSuffix = nTerm - nPrefix; @@ -188892,15 +198834,20 @@ static int fts3IncrmergeAppend( pLeaf = &pWriter->aNodeWriter[0]; nPrefix = fts3PrefixCompress(pLeaf->key.a, pLeaf->key.n, zTerm, nTerm); nSuffix = nTerm - nPrefix; + if(nSuffix<=0 ) return FTS_CORRUPT_VTAB; nSpace = sqlite3Fts3VarintLen(nPrefix); nSpace += sqlite3Fts3VarintLen(nSuffix) + nSuffix; nSpace += sqlite3Fts3VarintLen(nDoclist) + nDoclist; /* If the current block is not empty, and if adding this term/doclist - ** to the current block would make it larger than Fts3Table.nNodeSize - ** bytes, write this block out to the database. */ - if( pLeaf->block.n>0 && (pLeaf->block.n + nSpace)>p->nNodeSize ){ + ** to the current block would make it larger than Fts3Table.nNodeSize bytes, + ** and if there is still room for another leaf page, write this block out to + ** the database. */ + if( pLeaf->block.n>0 + && (pLeaf->block.n + nSpace)>p->nNodeSize + && pLeaf->iBlock < (pWriter->iStart + pWriter->nLeafEst) + ){ rc = fts3WriteSegment(p, pLeaf->iBlock, pLeaf->block.a, pLeaf->block.n); pWriter->nWork++; @@ -189211,6 +199158,7 @@ static int fts3IncrmergeLoad( for(i=nHeight; i>=0 && rc==SQLITE_OK; i--){ NodeReader reader; + memset(&reader, 0, sizeof(reader)); pNode = &pWriter->aNodeWriter[i]; if( pNode->block.a){ @@ -189231,7 +199179,7 @@ static int fts3IncrmergeLoad( rc = sqlite3Fts3ReadBlock(p, reader.iChild, &aBlock, &nBlock,0); blobGrowBuffer(&pNode->block, MAX(nBlock, p->nNodeSize)+FTS3_NODE_PADDING, &rc - ); + ); if( rc==SQLITE_OK ){ memcpy(pNode->block.a, aBlock, nBlock); pNode->block.n = nBlock; @@ -189415,7 +199363,7 @@ static int fts3RepackSegdirLevel( if( nIdx>=nAlloc ){ int *aNew; nAlloc += 16; - aNew = sqlite3_realloc(aIdx, nAlloc*sizeof(int)); + aNew = sqlite3_realloc64(aIdx, nAlloc*sizeof(int)); if( !aNew ){ rc = SQLITE_NOMEM; break; @@ -189789,7 +199737,7 @@ SQLITE_PRIVATE int sqlite3Fts3Incrmerge(Fts3Table *p, int nMerge, int nMin){ /* Allocate space for the cursor, filter and writer objects */ const int nAlloc = sizeof(*pCsr) + sizeof(*pFilter) + sizeof(*pWriter); - pWriter = (IncrmergeWriter *)sqlite3_malloc(nAlloc); + pWriter = (IncrmergeWriter *)sqlite3_malloc64(nAlloc); if( !pWriter ) return SQLITE_NOMEM; pFilter = (Fts3SegFilter *)&pWriter[1]; pCsr = (Fts3MultiSegReader *)&pFilter[1]; @@ -190081,7 +200029,7 @@ static u64 fts3ChecksumIndex( int rc; u64 cksum = 0; - assert( *pRc==SQLITE_OK ); + if( *pRc ) return 0; memset(&filter, 0, sizeof(filter)); memset(&csr, 0, sizeof(csr)); @@ -190148,7 +200096,7 @@ static u64 fts3ChecksumIndex( ** If an error occurs (e.g. an OOM or IO error), return an SQLite error ** code. The final value of *pbOk is undefined in this case. */ -static int fts3IntegrityCheck(Fts3Table *p, int *pbOk){ +SQLITE_PRIVATE int sqlite3Fts3IntegrityCheck(Fts3Table *p, int *pbOk){ int rc = SQLITE_OK; /* Return code */ u64 cksum1 = 0; /* Checksum based on FTS index contents */ u64 cksum2 = 0; /* Checksum based on %_content contents */ @@ -190226,7 +200174,7 @@ static int fts3IntegrityCheck(Fts3Table *p, int *pbOk){ sqlite3_finalize(pStmt); } - *pbOk = (cksum1==cksum2); + *pbOk = (rc==SQLITE_OK && cksum1==cksum2); return rc; } @@ -190266,7 +200214,7 @@ static int fts3DoIntegrityCheck( ){ int rc; int bOk = 0; - rc = fts3IntegrityCheck(p, &bOk); + rc = sqlite3Fts3IntegrityCheck(p, &bOk); if( rc==SQLITE_OK && bOk==0 ) rc = FTS_CORRUPT_VTAB; return rc; } @@ -190296,8 +200244,11 @@ static int fts3SpecialInsert(Fts3Table *p, sqlite3_value *pVal){ rc = fts3DoIncrmerge(p, &zVal[6]); }else if( nVal>10 && 0==sqlite3_strnicmp(zVal, "automerge=", 10) ){ rc = fts3DoAutoincrmerge(p, &zVal[10]); + }else if( nVal==5 && 0==sqlite3_strnicmp(zVal, "flush", 5) ){ + rc = sqlite3Fts3PendingTermsFlush(p); + } #if defined(SQLITE_DEBUG) || defined(SQLITE_TEST) - }else{ + else{ int v; if( nVal>9 && 0==sqlite3_strnicmp(zVal, "nodesize=", 9) ){ v = atoi(&zVal[9]); @@ -190315,8 +200266,8 @@ static int fts3SpecialInsert(Fts3Table *p, sqlite3_value *pVal){ if( v>=4 && v<=FTS3_MERGE_COUNT && (v&1)==0 ) p->nMergeCount = v; rc = SQLITE_OK; } -#endif } +#endif return rc; } @@ -190425,7 +200376,7 @@ SQLITE_PRIVATE int sqlite3Fts3DeferredTokenList( return SQLITE_OK; } - pRet = (char *)sqlite3_malloc(p->pList->nData); + pRet = (char *)sqlite3_malloc64(p->pList->nData); if( !pRet ) return SQLITE_NOMEM; nSkip = sqlite3Fts3GetVarint(p->pList->aData, &dummy); @@ -190445,7 +200396,7 @@ SQLITE_PRIVATE int sqlite3Fts3DeferToken( int iCol /* Column that token must appear in (or -1) */ ){ Fts3DeferredToken *pDeferred; - pDeferred = sqlite3_malloc(sizeof(*pDeferred)); + pDeferred = sqlite3_malloc64(sizeof(*pDeferred)); if( !pDeferred ){ return SQLITE_NOMEM; } @@ -190724,7 +200675,7 @@ typedef sqlite3_int64 i64; /* -** Used as an fts3ExprIterate() context when loading phrase doclists to +** Used as an sqlite3Fts3ExprIterate() context when loading phrase doclists to ** Fts3Expr.aDoclist[]/nDoclist. */ typedef struct LoadDoclistCtx LoadDoclistCtx; @@ -190768,7 +200719,7 @@ struct SnippetFragment { }; /* -** This type is used as an fts3ExprIterate() context object while +** This type is used as an sqlite3Fts3ExprIterate() context object while ** accumulating the data returned by the matchinfo() function. */ typedef struct MatchInfo MatchInfo; @@ -190927,7 +200878,7 @@ static void fts3GetDeltaPosition(char **pp, i64 *piPos){ } /* -** Helper function for fts3ExprIterate() (see below). +** Helper function for sqlite3Fts3ExprIterate() (see below). */ static int fts3ExprIterate2( Fts3Expr *pExpr, /* Expression to iterate phrases of */ @@ -190961,7 +200912,7 @@ static int fts3ExprIterate2( ** Otherwise, SQLITE_OK is returned after a callback has been made for ** all eligible phrase nodes. */ -static int fts3ExprIterate( +SQLITE_PRIVATE int sqlite3Fts3ExprIterate( Fts3Expr *pExpr, /* Expression to iterate phrases of */ int (*x)(Fts3Expr*,int,void*), /* Callback function to invoke for phrases */ void *pCtx /* Second argument to pass to callback */ @@ -190970,10 +200921,9 @@ static int fts3ExprIterate( return fts3ExprIterate2(pExpr, &iPhrase, x, pCtx); } - /* -** This is an fts3ExprIterate() callback used while loading the doclists -** for each phrase into Fts3Expr.aDoclist[]/nDoclist. See also +** This is an sqlite3Fts3ExprIterate() callback used while loading the +** doclists for each phrase into Fts3Expr.aDoclist[]/nDoclist. See also ** fts3ExprLoadDoclists(). */ static int fts3ExprLoadDoclistsCb(Fts3Expr *pExpr, int iPhrase, void *ctx){ @@ -191005,9 +200955,9 @@ static int fts3ExprLoadDoclists( int *pnToken /* OUT: Number of tokens in query */ ){ int rc; /* Return Code */ - LoadDoclistCtx sCtx = {0,0,0}; /* Context for fts3ExprIterate() */ + LoadDoclistCtx sCtx = {0,0,0}; /* Context for sqlite3Fts3ExprIterate() */ sCtx.pCsr = pCsr; - rc = fts3ExprIterate(pCsr->pExpr, fts3ExprLoadDoclistsCb, (void *)&sCtx); + rc = sqlite3Fts3ExprIterate(pCsr->pExpr,fts3ExprLoadDoclistsCb,(void*)&sCtx); if( pnPhrase ) *pnPhrase = sCtx.nPhrase; if( pnToken ) *pnToken = sCtx.nToken; return rc; @@ -191020,7 +200970,7 @@ static int fts3ExprPhraseCountCb(Fts3Expr *pExpr, int iPhrase, void *ctx){ } static int fts3ExprPhraseCount(Fts3Expr *pExpr){ int nPhrase = 0; - (void)fts3ExprIterate(pExpr, fts3ExprPhraseCountCb, (void *)&nPhrase); + (void)sqlite3Fts3ExprIterate(pExpr, fts3ExprPhraseCountCb, (void *)&nPhrase); return nPhrase; } @@ -191148,8 +201098,9 @@ static void fts3SnippetDetails( } /* -** This function is an fts3ExprIterate() callback used by fts3BestSnippet(). -** Each invocation populates an element of the SnippetIter.aPhrase[] array. +** This function is an sqlite3Fts3ExprIterate() callback used by +** fts3BestSnippet(). Each invocation populates an element of the +** SnippetIter.aPhrase[] array. */ static int fts3SnippetFindPositions(Fts3Expr *pExpr, int iPhrase, void *ctx){ SnippetIter *p = (SnippetIter *)ctx; @@ -191239,7 +201190,9 @@ static int fts3BestSnippet( sIter.nSnippet = nSnippet; sIter.nPhrase = nList; sIter.iCurrent = -1; - rc = fts3ExprIterate(pCsr->pExpr, fts3SnippetFindPositions, (void*)&sIter); + rc = sqlite3Fts3ExprIterate( + pCsr->pExpr, fts3SnippetFindPositions, (void*)&sIter + ); if( rc==SQLITE_OK ){ /* Set the *pmSeen output variable. */ @@ -191600,10 +201553,10 @@ static int fts3ExprLHitGather( } /* -** fts3ExprIterate() callback used to collect the "global" matchinfo stats -** for a single query. +** sqlite3Fts3ExprIterate() callback used to collect the "global" matchinfo +** stats for a single query. ** -** fts3ExprIterate() callback to load the 'global' elements of a +** sqlite3Fts3ExprIterate() callback to load the 'global' elements of a ** FTS3_MATCHINFO_HITS matchinfo array. The global stats are those elements ** of the matchinfo array that are constant for all rows returned by the ** current query. @@ -191638,7 +201591,7 @@ static int fts3ExprGlobalHitsCb( } /* -** fts3ExprIterate() callback used to collect the "local" part of the +** sqlite3Fts3ExprIterate() callback used to collect the "local" part of the ** FTS3_MATCHINFO_HITS array. The local stats are those elements of the ** array that are different for each row returned by the query. */ @@ -191834,7 +201787,7 @@ static int fts3MatchinfoLcs(Fts3Cursor *pCsr, MatchInfo *pInfo){ **/ aIter = sqlite3Fts3MallocZero(sizeof(LcsIterator) * pCsr->nPhrase); if( !aIter ) return SQLITE_NOMEM; - (void)fts3ExprIterate(pCsr->pExpr, fts3MatchinfoLcsCb, (void*)aIter); + (void)sqlite3Fts3ExprIterate(pCsr->pExpr, fts3MatchinfoLcsCb, (void*)aIter); for(i=0; i<pInfo->nPhrase; i++){ LcsIterator *pIter = &aIter[i]; @@ -192011,11 +201964,11 @@ static int fts3MatchinfoValues( rc = fts3MatchinfoSelectDoctotal(pTab, &pSelect, &pInfo->nDoc,0,0); if( rc!=SQLITE_OK ) break; } - rc = fts3ExprIterate(pExpr, fts3ExprGlobalHitsCb,(void*)pInfo); + rc = sqlite3Fts3ExprIterate(pExpr, fts3ExprGlobalHitsCb,(void*)pInfo); sqlite3Fts3EvalTestDeferred(pCsr, &rc); if( rc!=SQLITE_OK ) break; } - (void)fts3ExprIterate(pExpr, fts3ExprLocalHitsCb,(void*)pInfo); + (void)sqlite3Fts3ExprIterate(pExpr, fts3ExprLocalHitsCb,(void*)pInfo); break; } } @@ -192238,7 +202191,7 @@ struct TermOffsetCtx { }; /* -** This function is an fts3ExprIterate() callback used by sqlite3Fts3Offsets(). +** This function is an sqlite3Fts3ExprIterate() callback used by sqlite3Fts3Offsets(). */ static int fts3ExprTermOffsetInit(Fts3Expr *pExpr, int iPhrase, void *ctx){ TermOffsetCtx *p = (TermOffsetCtx *)ctx; @@ -192320,7 +202273,9 @@ SQLITE_PRIVATE void sqlite3Fts3Offsets( */ sCtx.iCol = iCol; sCtx.iTerm = 0; - rc = fts3ExprIterate(pCsr->pExpr, fts3ExprTermOffsetInit, (void*)&sCtx); + rc = sqlite3Fts3ExprIterate( + pCsr->pExpr, fts3ExprTermOffsetInit, (void*)&sCtx + ); if( rc!=SQLITE_OK ) goto offsets_out; /* Retreive the text stored in column iCol. If an SQL NULL is stored @@ -193233,59 +203188,242 @@ SQLITE_PRIVATE int sqlite3FtsUnicodeFold(int c, int eRemoveDiacritic){ ** ****************************************************************************** ** -** This SQLite JSON functions. +** SQLite JSON functions. ** ** This file began as an extension in ext/misc/json1.c in 2015. That ** extension proved so useful that it has now been moved into the core. ** -** For the time being, all JSON is stored as pure text. (We might add -** a JSONB type in the future which stores a binary encoding of JSON in -** a BLOB, but there is no support for JSONB in the current implementation. -** This implementation parses JSON text at 250 MB/s, so it is hard to see -** how JSONB might improve on that.) +** The original design stored all JSON as pure text, canonical RFC-8259. +** Support for JSON-5 extensions was added with version 3.42.0 (2023-05-16). +** All generated JSON text still conforms strictly to RFC-8259, but text +** with JSON-5 extensions is accepted as input. +** +** Beginning with version 3.45.0 (circa 2024-01-01), these routines also +** accept BLOB values that have JSON encoded using a binary representation +** called "JSONB". The name JSONB comes from PostgreSQL, however the on-disk +** format SQLite JSONB is completely different and incompatible with +** PostgreSQL JSONB. +** +** Decoding and interpreting JSONB is still O(N) where N is the size of +** the input, the same as text JSON. However, the constant of proportionality +** for JSONB is much smaller due to faster parsing. The size of each +** element in JSONB is encoded in its header, so there is no need to search +** for delimiters using persnickety syntax rules. JSONB seems to be about +** 3x faster than text JSON as a result. JSONB is also tends to be slightly +** smaller than text JSON, by 5% or 10%, but there are corner cases where +** JSONB can be slightly larger. So you are not far mistaken to say that +** a JSONB blob is the same size as the equivalent RFC-8259 text. +** +** +** THE JSONB ENCODING: +** +** Every JSON element is encoded in JSONB as a header and a payload. +** The header is between 1 and 9 bytes in size. The payload is zero +** or more bytes. +** +** The lower 4 bits of the first byte of the header determines the +** element type: +** +** 0: NULL +** 1: TRUE +** 2: FALSE +** 3: INT -- RFC-8259 integer literal +** 4: INT5 -- JSON5 integer literal +** 5: FLOAT -- RFC-8259 floating point literal +** 6: FLOAT5 -- JSON5 floating point literal +** 7: TEXT -- Text literal acceptable to both SQL and JSON +** 8: TEXTJ -- Text containing RFC-8259 escapes +** 9: TEXT5 -- Text containing JSON5 and/or RFC-8259 escapes +** 10: TEXTRAW -- Text containing unescaped syntax characters +** 11: ARRAY +** 12: OBJECT +** +** The other three possible values (13-15) are reserved for future +** enhancements. +** +** The upper 4 bits of the first byte determine the size of the header +** and sometimes also the size of the payload. If X is the first byte +** of the element and if X>>4 is between 0 and 11, then the payload +** will be that many bytes in size and the header is exactly one byte +** in size. Other four values for X>>4 (12-15) indicate that the header +** is more than one byte in size and that the payload size is determined +** by the remainder of the header, interpreted as a unsigned big-endian +** integer. +** +** Value of X>>4 Size integer Total header size +** ------------- -------------------- ----------------- +** 12 1 byte (0-255) 2 +** 13 2 byte (0-65535) 3 +** 14 4 byte (0-4294967295) 5 +** 15 8 byte (0-1.8e19) 9 +** +** The payload size need not be expressed in its minimal form. For example, +** if the payload size is 10, the size can be expressed in any of 5 different +** ways: (1) (X>>4)==10, (2) (X>>4)==12 following by on 0x0a byte, +** (3) (X>>4)==13 followed by 0x00 and 0x0a, (4) (X>>4)==14 followed by +** 0x00 0x00 0x00 0x0a, or (5) (X>>4)==15 followed by 7 bytes of 0x00 and +** a single byte of 0x0a. The shorter forms are preferred, of course, but +** sometimes when generating JSONB, the payload size is not known in advance +** and it is convenient to reserve sufficient header space to cover the +** largest possible payload size and then come back later and patch up +** the size when it becomes known, resulting in a non-minimal encoding. +** +** The value (X>>4)==15 is not actually used in the current implementation +** (as SQLite is currently unable handle BLOBs larger than about 2GB) +** but is included in the design to allow for future enhancements. +** +** The payload follows the header. NULL, TRUE, and FALSE have no payload and +** their payload size must always be zero. The payload for INT, INT5, +** FLOAT, FLOAT5, TEXT, TEXTJ, TEXT5, and TEXTROW is text. Note that the +** "..." or '...' delimiters are omitted from the various text encodings. +** The payload for ARRAY and OBJECT is a list of additional elements that +** are the content for the array or object. The payload for an OBJECT +** must be an even number of elements. The first element of each pair is +** the label and must be of type TEXT, TEXTJ, TEXT5, or TEXTRAW. +** +** A valid JSONB blob consists of a single element, as described above. +** Usually this will be an ARRAY or OBJECT element which has many more +** elements as its content. But the overall blob is just a single element. +** +** Input validation for JSONB blobs simply checks that the element type +** code is between 0 and 12 and that the total size of the element +** (header plus payload) is the same as the size of the BLOB. If those +** checks are true, the BLOB is assumed to be JSONB and processing continues. +** Errors are only raised if some other miscoding is discovered during +** processing. +** +** Additional information can be found in the doc/jsonb.md file of the +** canonical SQLite source tree. */ #ifndef SQLITE_OMIT_JSON /* #include "sqliteInt.h" */ +/* JSONB element types +*/ +#define JSONB_NULL 0 /* "null" */ +#define JSONB_TRUE 1 /* "true" */ +#define JSONB_FALSE 2 /* "false" */ +#define JSONB_INT 3 /* integer acceptable to JSON and SQL */ +#define JSONB_INT5 4 /* integer in 0x000 notation */ +#define JSONB_FLOAT 5 /* float acceptable to JSON and SQL */ +#define JSONB_FLOAT5 6 /* float with JSON5 extensions */ +#define JSONB_TEXT 7 /* Text compatible with both JSON and SQL */ +#define JSONB_TEXTJ 8 /* Text with JSON escapes */ +#define JSONB_TEXT5 9 /* Text with JSON-5 escape */ +#define JSONB_TEXTRAW 10 /* SQL text that needs escaping for JSON */ +#define JSONB_ARRAY 11 /* An array */ +#define JSONB_OBJECT 12 /* An object */ + +/* Human-readable names for the JSONB values. The index for each +** string must correspond to the JSONB_* integer above. +*/ +static const char * const jsonbType[] = { + "null", "true", "false", "integer", "integer", + "real", "real", "text", "text", "text", + "text", "array", "object", "", "", "", "" +}; + /* ** Growing our own isspace() routine this way is twice as fast as ** the library isspace() function, resulting in a 7% overall performance -** increase for the parser. (Ubuntu14.10 gcc 4.8.4 x64 with -Os). +** increase for the text-JSON parser. (Ubuntu14.10 gcc 4.8.4 x64 with -Os). */ static const char jsonIsSpace[] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; +#define jsonIsspace(x) (jsonIsSpace[(unsigned char)x]) + +/* +** The set of all space characters recognized by jsonIsspace(). +** Useful as the second argument to strspn(). +*/ +static const char jsonSpaces[] = "\011\012\015\040"; + +/* +** Characters that are special to JSON. Control characters, +** '"' and '\\' and '\''. Actually, '\'' is not special to +** canonical JSON, but it is special in JSON-5, so we include +** it in the set of special characters. +*/ +static const char jsonIsOk[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }; -#define fast_isspace(x) (jsonIsSpace[(unsigned char)x]) - -#if !defined(SQLITE_DEBUG) && !defined(SQLITE_COVERAGE_TEST) -# define VVA(X) -#else -# define VVA(X) X -#endif /* Objects */ +typedef struct JsonCache JsonCache; typedef struct JsonString JsonString; -typedef struct JsonNode JsonNode; typedef struct JsonParse JsonParse; +/* +** Magic number used for the JSON parse cache in sqlite3_get_auxdata() +*/ +#define JSON_CACHE_ID (-429938) /* Cache entry */ +#define JSON_CACHE_SIZE 4 /* Max number of cache entries */ + +/* +** jsonUnescapeOneChar() returns this invalid code point if it encounters +** a syntax error. +*/ +#define JSON_INVALID_CHAR 0x99999 + +/* A cache mapping JSON text into JSONB blobs. +** +** Each cache entry is a JsonParse object with the following restrictions: +** +** * The bReadOnly flag must be set +** +** * The aBlob[] array must be owned by the JsonParse object. In other +** words, nBlobAlloc must be non-zero. +** +** * eEdit and delta must be zero. +** +** * zJson must be an RCStr. In other words bJsonIsRCStr must be true. +*/ +struct JsonCache { + sqlite3 *db; /* Database connection */ + int nUsed; /* Number of active entries in the cache */ + JsonParse *a[JSON_CACHE_SIZE]; /* One line for each cache entry */ +}; + /* An instance of this object represents a JSON string ** under construction. Really, this is a generic string accumulator ** that can be and is used to create strings other than JSON. +** +** If the generated string is longer than will fit into the zSpace[] buffer, +** then it will be an RCStr string. This aids with caching of large +** JSON strings. */ struct JsonString { sqlite3_context *pCtx; /* Function context - put error messages here */ @@ -193293,89 +203431,227 @@ struct JsonString { u64 nAlloc; /* Bytes of storage available in zBuf[] */ u64 nUsed; /* Bytes of zBuf[] currently used */ u8 bStatic; /* True if zBuf is static space */ - u8 bErr; /* True if an error has been encountered */ + u8 eErr; /* True if an error has been encountered */ char zSpace[100]; /* Initial static space */ }; -/* JSON type values -*/ -#define JSON_NULL 0 -#define JSON_TRUE 1 -#define JSON_FALSE 2 -#define JSON_INT 3 -#define JSON_REAL 4 -#define JSON_STRING 5 -#define JSON_ARRAY 6 -#define JSON_OBJECT 7 +/* Allowed values for JsonString.eErr */ +#define JSTRING_OOM 0x01 /* Out of memory */ +#define JSTRING_MALFORMED 0x02 /* Malformed JSONB */ +#define JSTRING_ERR 0x04 /* Error already sent to sqlite3_result */ -/* The "subtype" set for JSON values */ +/* The "subtype" set for text JSON values passed through using +** sqlite3_result_subtype() and sqlite3_value_subtype(). +*/ #define JSON_SUBTYPE 74 /* Ascii for "J" */ /* -** Names of the various JSON types: -*/ -static const char * const jsonType[] = { - "null", "true", "false", "integer", "real", "text", "array", "object" -}; - -/* Bit values for the JsonNode.jnFlag field +** Bit values for the flags passed into various SQL function implementations +** via the sqlite3_user_data() value. */ -#define JNODE_RAW 0x01 /* Content is raw, not JSON encoded */ -#define JNODE_ESCAPE 0x02 /* Content is text with \ escapes */ -#define JNODE_REMOVE 0x04 /* Do not output */ -#define JNODE_REPLACE 0x08 /* Replace with JsonNode.u.iReplace */ -#define JNODE_PATCH 0x10 /* Patch with JsonNode.u.pPatch */ -#define JNODE_APPEND 0x20 /* More ARRAY/OBJECT entries at u.iAppend */ -#define JNODE_LABEL 0x40 /* Is a label of an object */ - +#define JSON_JSON 0x01 /* Result is always JSON */ +#define JSON_SQL 0x02 /* Result is always SQL */ +#define JSON_ABPATH 0x03 /* Allow abbreviated JSON path specs */ +#define JSON_ISSET 0x04 /* json_set(), not json_insert() */ +#define JSON_BLOB 0x08 /* Use the BLOB output format */ -/* A single node of parsed JSON -*/ -struct JsonNode { - u8 eType; /* One of the JSON_ type values */ - u8 jnFlags; /* JNODE flags */ - u8 eU; /* Which union element to use */ - u32 n; /* Bytes of content, or number of sub-nodes */ - union { - const char *zJContent; /* 1: Content for INT, REAL, and STRING */ - u32 iAppend; /* 2: More terms for ARRAY and OBJECT */ - u32 iKey; /* 3: Key for ARRAY objects in json_tree() */ - u32 iReplace; /* 4: Replacement content for JNODE_REPLACE */ - JsonNode *pPatch; /* 5: Node chain of patch for JNODE_PATCH */ - } u; -}; -/* A completely parsed JSON string +/* A parsed JSON value. Lifecycle: +** +** 1. JSON comes in and is parsed into a JSONB value in aBlob. The +** original text is stored in zJson. This step is skipped if the +** input is JSONB instead of text JSON. +** +** 2. The aBlob[] array is searched using the JSON path notation, if needed. +** +** 3. Zero or more changes are made to aBlob[] (via json_remove() or +** json_replace() or json_patch() or similar). +** +** 4. New JSON text is generated from the aBlob[] for output. This step +** is skipped if the function is one of the jsonb_* functions that +** returns JSONB instead of text JSON. */ struct JsonParse { - u32 nNode; /* Number of slots of aNode[] used */ - u32 nAlloc; /* Number of slots of aNode[] allocated */ - JsonNode *aNode; /* Array of nodes containing the parse */ - const char *zJson; /* Original JSON string */ - u32 *aUp; /* Index of parent of each node */ - u8 oom; /* Set to true if out of memory */ - u8 nErr; /* Number of errors seen */ - u16 iDepth; /* Nesting depth */ + u8 *aBlob; /* JSONB representation of JSON value */ + u32 nBlob; /* Bytes of aBlob[] actually used */ + u32 nBlobAlloc; /* Bytes allocated to aBlob[]. 0 if aBlob is external */ + char *zJson; /* Json text used for parsing */ + sqlite3 *db; /* The database connection to which this object belongs */ int nJson; /* Length of the zJson string in bytes */ - u32 iHold; /* Replace cache line with the lowest iHold value */ + u32 nJPRef; /* Number of references to this object */ + u32 iErr; /* Error location in zJson[] */ + u16 iDepth; /* Nesting depth */ + u8 nErr; /* Number of errors seen */ + u8 oom; /* Set to true if out of memory */ + u8 bJsonIsRCStr; /* True if zJson is an RCStr */ + u8 hasNonstd; /* True if input uses non-standard features like JSON5 */ + u8 bReadOnly; /* Do not modify. */ + /* Search and edit information. See jsonLookupStep() */ + u8 eEdit; /* Edit operation to apply */ + int delta; /* Size change due to the edit */ + u32 nIns; /* Number of bytes to insert */ + u32 iLabel; /* Location of label if search landed on an object value */ + u8 *aIns; /* Content to be inserted */ }; +/* Allowed values for JsonParse.eEdit */ +#define JEDIT_DEL 1 /* Delete if exists */ +#define JEDIT_REPL 2 /* Overwrite if exists */ +#define JEDIT_INS 3 /* Insert if not exists */ +#define JEDIT_SET 4 /* Insert or overwrite */ + /* ** Maximum nesting depth of JSON for this implementation. ** ** This limit is needed to avoid a stack overflow in the recursive -** descent parser. A depth of 2000 is far deeper than any sane JSON -** should go. +** descent parser. A depth of 1000 is far deeper than any sane JSON +** should go. Historical note: This limit was 2000 prior to version 3.42.0 */ -#define JSON_MAX_DEPTH 2000 +#ifndef SQLITE_JSON_MAX_DEPTH +# define JSON_MAX_DEPTH 1000 +#else +# define JSON_MAX_DEPTH SQLITE_JSON_MAX_DEPTH +#endif + +/* +** Allowed values for the flgs argument to jsonParseFuncArg(); +*/ +#define JSON_EDITABLE 0x01 /* Generate a writable JsonParse object */ +#define JSON_KEEPERROR 0x02 /* Return non-NULL even if there is an error */ + +/************************************************************************** +** Forward references +**************************************************************************/ +static void jsonReturnStringAsBlob(JsonString*); +static int jsonFuncArgMightBeBinary(sqlite3_value *pJson); +static u32 jsonTranslateBlobToText(const JsonParse*,u32,JsonString*); +static void jsonReturnParse(sqlite3_context*,JsonParse*); +static JsonParse *jsonParseFuncArg(sqlite3_context*,sqlite3_value*,u32); +static void jsonParseFree(JsonParse*); +static u32 jsonbPayloadSize(const JsonParse*, u32, u32*); +static u32 jsonUnescapeOneChar(const char*, u32, u32*); + +/************************************************************************** +** Utility routines for dealing with JsonCache objects +**************************************************************************/ + +/* +** Free a JsonCache object. +*/ +static void jsonCacheDelete(JsonCache *p){ + int i; + for(i=0; i<p->nUsed; i++){ + jsonParseFree(p->a[i]); + } + sqlite3DbFree(p->db, p); +} +static void jsonCacheDeleteGeneric(void *p){ + jsonCacheDelete((JsonCache*)p); +} + +/* +** Insert a new entry into the cache. If the cache is full, expel +** the least recently used entry. Return SQLITE_OK on success or a +** result code otherwise. +** +** Cache entries are stored in age order, oldest first. +*/ +static int jsonCacheInsert( + sqlite3_context *ctx, /* The SQL statement context holding the cache */ + JsonParse *pParse /* The parse object to be added to the cache */ +){ + JsonCache *p; + + assert( pParse->zJson!=0 ); + assert( pParse->bJsonIsRCStr ); + assert( pParse->delta==0 ); + p = sqlite3_get_auxdata(ctx, JSON_CACHE_ID); + if( p==0 ){ + sqlite3 *db = sqlite3_context_db_handle(ctx); + p = sqlite3DbMallocZero(db, sizeof(*p)); + if( p==0 ) return SQLITE_NOMEM; + p->db = db; + sqlite3_set_auxdata(ctx, JSON_CACHE_ID, p, jsonCacheDeleteGeneric); + p = sqlite3_get_auxdata(ctx, JSON_CACHE_ID); + if( p==0 ) return SQLITE_NOMEM; + } + if( p->nUsed >= JSON_CACHE_SIZE ){ + jsonParseFree(p->a[0]); + memmove(p->a, &p->a[1], (JSON_CACHE_SIZE-1)*sizeof(p->a[0])); + p->nUsed = JSON_CACHE_SIZE-1; + } + assert( pParse->nBlobAlloc>0 ); + pParse->eEdit = 0; + pParse->nJPRef++; + pParse->bReadOnly = 1; + p->a[p->nUsed] = pParse; + p->nUsed++; + return SQLITE_OK; +} + +/* +** Search for a cached translation the json text supplied by pArg. Return +** the JsonParse object if found. Return NULL if not found. +** +** When a match if found, the matching entry is moved to become the +** most-recently used entry if it isn't so already. +** +** The JsonParse object returned still belongs to the Cache and might +** be deleted at any moment. If the caller whants the JsonParse to +** linger, it needs to increment the nPJRef reference counter. +*/ +static JsonParse *jsonCacheSearch( + sqlite3_context *ctx, /* The SQL statement context holding the cache */ + sqlite3_value *pArg /* Function argument containing SQL text */ +){ + JsonCache *p; + int i; + const char *zJson; + int nJson; + + if( sqlite3_value_type(pArg)!=SQLITE_TEXT ){ + return 0; + } + zJson = (const char*)sqlite3_value_text(pArg); + if( zJson==0 ) return 0; + nJson = sqlite3_value_bytes(pArg); + + p = sqlite3_get_auxdata(ctx, JSON_CACHE_ID); + if( p==0 ){ + return 0; + } + for(i=0; i<p->nUsed; i++){ + if( p->a[i]->zJson==zJson ) break; + } + if( i>=p->nUsed ){ + for(i=0; i<p->nUsed; i++){ + if( p->a[i]->nJson!=nJson ) continue; + if( memcmp(p->a[i]->zJson, zJson, nJson)==0 ) break; + } + } + if( i<p->nUsed ){ + if( i<p->nUsed-1 ){ + /* Make the matching entry the most recently used entry */ + JsonParse *tmp = p->a[i]; + memmove(&p->a[i], &p->a[i+1], (p->nUsed-i-1)*sizeof(tmp)); + p->a[p->nUsed-1] = tmp; + i = p->nUsed - 1; + } + assert( p->a[i]->delta==0 ); + return p->a[i]; + }else{ + return 0; + } +} /************************************************************************** ** Utility routines for dealing with JsonString objects **************************************************************************/ -/* Set the JsonString object to an empty string +/* Turn uninitialized bulk memory into a valid JsonString object +** holding a zero-length string. */ -static void jsonZero(JsonString *p){ +static void jsonStringZero(JsonString *p){ p->zBuf = p->zSpace; p->nAlloc = sizeof(p->zSpace); p->nUsed = 0; @@ -193384,53 +203660,51 @@ static void jsonZero(JsonString *p){ /* Initialize the JsonString object */ -static void jsonInit(JsonString *p, sqlite3_context *pCtx){ +static void jsonStringInit(JsonString *p, sqlite3_context *pCtx){ p->pCtx = pCtx; - p->bErr = 0; - jsonZero(p); + p->eErr = 0; + jsonStringZero(p); } - /* Free all allocated memory and reset the JsonString object back to its ** initial state. */ -static void jsonReset(JsonString *p){ - if( !p->bStatic ) sqlite3_free(p->zBuf); - jsonZero(p); +static void jsonStringReset(JsonString *p){ + if( !p->bStatic ) sqlite3RCStrUnref(p->zBuf); + jsonStringZero(p); } - /* Report an out-of-memory (OOM) condition */ -static void jsonOom(JsonString *p){ - p->bErr = 1; - sqlite3_result_error_nomem(p->pCtx); - jsonReset(p); +static void jsonStringOom(JsonString *p){ + p->eErr |= JSTRING_OOM; + if( p->pCtx ) sqlite3_result_error_nomem(p->pCtx); + jsonStringReset(p); } /* Enlarge pJson->zBuf so that it can hold at least N more bytes. ** Return zero on success. Return non-zero on an OOM error */ -static int jsonGrow(JsonString *p, u32 N){ +static int jsonStringGrow(JsonString *p, u32 N){ u64 nTotal = N<p->nAlloc ? p->nAlloc*2 : p->nAlloc+N+10; char *zNew; if( p->bStatic ){ - if( p->bErr ) return 1; - zNew = sqlite3_malloc64(nTotal); + if( p->eErr ) return 1; + zNew = sqlite3RCStrNew(nTotal); if( zNew==0 ){ - jsonOom(p); + jsonStringOom(p); return SQLITE_NOMEM; } memcpy(zNew, p->zBuf, (size_t)p->nUsed); p->zBuf = zNew; p->bStatic = 0; }else{ - zNew = sqlite3_realloc64(p->zBuf, nTotal); - if( zNew==0 ){ - jsonOom(p); + p->zBuf = sqlite3RCStrResize(p->zBuf, nTotal); + if( p->zBuf==0 ){ + p->eErr |= JSTRING_OOM; + jsonStringZero(p); return SQLITE_NOMEM; } - p->zBuf = zNew; } p->nAlloc = nTotal; return SQLITE_OK; @@ -193438,18 +203712,41 @@ static int jsonGrow(JsonString *p, u32 N){ /* Append N bytes from zIn onto the end of the JsonString string. */ -static void jsonAppendRaw(JsonString *p, const char *zIn, u32 N){ - if( N==0 ) return; - if( (N+p->nUsed >= p->nAlloc) && jsonGrow(p,N)!=0 ) return; +static SQLITE_NOINLINE void jsonStringExpandAndAppend( + JsonString *p, + const char *zIn, + u32 N +){ + assert( N>0 ); + if( jsonStringGrow(p,N) ) return; memcpy(p->zBuf+p->nUsed, zIn, N); p->nUsed += N; } +static void jsonAppendRaw(JsonString *p, const char *zIn, u32 N){ + if( N==0 ) return; + if( N+p->nUsed >= p->nAlloc ){ + jsonStringExpandAndAppend(p,zIn,N); + }else{ + memcpy(p->zBuf+p->nUsed, zIn, N); + p->nUsed += N; + } +} +static void jsonAppendRawNZ(JsonString *p, const char *zIn, u32 N){ + assert( N>0 ); + if( N+p->nUsed >= p->nAlloc ){ + jsonStringExpandAndAppend(p,zIn,N); + }else{ + memcpy(p->zBuf+p->nUsed, zIn, N); + p->nUsed += N; + } +} + /* Append formatted text (not to exceed N bytes) to the JsonString. */ static void jsonPrintf(int N, JsonString *p, const char *zFormat, ...){ va_list ap; - if( (p->nUsed + N >= p->nAlloc) && jsonGrow(p, N) ) return; + if( (p->nUsed + N >= p->nAlloc) && jsonStringGrow(p, N) ) return; va_start(ap, zFormat); sqlite3_vsnprintf(N, p->zBuf+p->nUsed, zFormat, ap); va_end(ap); @@ -193458,10 +203755,38 @@ static void jsonPrintf(int N, JsonString *p, const char *zFormat, ...){ /* Append a single character */ -static void jsonAppendChar(JsonString *p, char c){ - if( p->nUsed>=p->nAlloc && jsonGrow(p,1)!=0 ) return; +static SQLITE_NOINLINE void jsonAppendCharExpand(JsonString *p, char c){ + if( jsonStringGrow(p,1) ) return; p->zBuf[p->nUsed++] = c; } +static void jsonAppendChar(JsonString *p, char c){ + if( p->nUsed>=p->nAlloc ){ + jsonAppendCharExpand(p,c); + }else{ + p->zBuf[p->nUsed++] = c; + } +} + +/* Remove a single character from the end of the string +*/ +static void jsonStringTrimOneChar(JsonString *p){ + if( p->eErr==0 ){ + assert( p->nUsed>0 ); + p->nUsed--; + } +} + + +/* Make sure there is a zero terminator on p->zBuf[] +** +** Return true on success. Return false if an OOM prevents this +** from happening. +*/ +static int jsonStringTerminate(JsonString *p){ + jsonAppendChar(p, 0); + jsonStringTrimOneChar(p); + return p->eErr==0; +} /* Append a comma separator to the output buffer, if the previous ** character is not '[' or '{'. @@ -193470,25 +203795,76 @@ static void jsonAppendSeparator(JsonString *p){ char c; if( p->nUsed==0 ) return; c = p->zBuf[p->nUsed-1]; - if( c!='[' && c!='{' ) jsonAppendChar(p, ','); + if( c=='[' || c=='{' ) return; + jsonAppendChar(p, ','); } /* Append the N-byte string in zIn to the end of the JsonString string -** under construction. Enclose the string in "..." and escape -** any double-quotes or backslash characters contained within the +** under construction. Enclose the string in double-quotes ("...") and +** escape any double-quotes or backslash characters contained within the ** string. +** +** This routine is a high-runner. There is a measurable performance +** increase associated with unwinding the jsonIsOk[] loop. */ static void jsonAppendString(JsonString *p, const char *zIn, u32 N){ - u32 i; - if( zIn==0 || ((N+p->nUsed+2 >= p->nAlloc) && jsonGrow(p,N+2)!=0) ) return; + u32 k; + u8 c; + const u8 *z = (const u8*)zIn; + if( z==0 ) return; + if( (N+p->nUsed+2 >= p->nAlloc) && jsonStringGrow(p,N+2)!=0 ) return; p->zBuf[p->nUsed++] = '"'; - for(i=0; i<N; i++){ - unsigned char c = ((unsigned const char*)zIn)[i]; + while( 1 /*exit-by-break*/ ){ + k = 0; + /* The following while() is the 4-way unwound equivalent of + ** + ** while( k<N && jsonIsOk[z[k]] ){ k++; } + */ + while( 1 /* Exit by break */ ){ + if( k+3>=N ){ + while( k<N && jsonIsOk[z[k]] ){ k++; } + break; + } + if( !jsonIsOk[z[k]] ){ + break; + } + if( !jsonIsOk[z[k+1]] ){ + k += 1; + break; + } + if( !jsonIsOk[z[k+2]] ){ + k += 2; + break; + } + if( !jsonIsOk[z[k+3]] ){ + k += 3; + break; + }else{ + k += 4; + } + } + if( k>=N ){ + if( k>0 ){ + memcpy(&p->zBuf[p->nUsed], z, k); + p->nUsed += k; + } + break; + } + if( k>0 ){ + memcpy(&p->zBuf[p->nUsed], z, k); + p->nUsed += k; + z += k; + N -= k; + } + c = z[0]; if( c=='"' || c=='\\' ){ json_simple_escape: - if( (p->nUsed+N+3-i > p->nAlloc) && jsonGrow(p,N+3-i)!=0 ) return; + if( (p->nUsed+N+3 > p->nAlloc) && jsonStringGrow(p,N+3)!=0 ) return; p->zBuf[p->nUsed++] = '\\'; - }else if( c<=0x1f ){ + p->zBuf[p->nUsed++] = c; + }else if( c=='\'' ){ + p->zBuf[p->nUsed++] = c; + }else{ static const char aSpecial[] = { 0, 0, 0, 0, 0, 0, 0, 0, 'b', 't', 'n', 0, 'f', 'r', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 @@ -193499,39 +203875,44 @@ static void jsonAppendString(JsonString *p, const char *zIn, u32 N){ assert( aSpecial['\n']=='n' ); assert( aSpecial['\r']=='r' ); assert( aSpecial['\t']=='t' ); + assert( c>=0 && c<sizeof(aSpecial) ); if( aSpecial[c] ){ c = aSpecial[c]; goto json_simple_escape; } - if( (p->nUsed+N+7+i > p->nAlloc) && jsonGrow(p,N+7-i)!=0 ) return; + if( (p->nUsed+N+7 > p->nAlloc) && jsonStringGrow(p,N+7)!=0 ) return; p->zBuf[p->nUsed++] = '\\'; p->zBuf[p->nUsed++] = 'u'; p->zBuf[p->nUsed++] = '0'; p->zBuf[p->nUsed++] = '0'; - p->zBuf[p->nUsed++] = '0' + (c>>4); - c = "0123456789abcdef"[c&0xf]; + p->zBuf[p->nUsed++] = "0123456789abcdef"[c>>4]; + p->zBuf[p->nUsed++] = "0123456789abcdef"[c&0xf]; } - p->zBuf[p->nUsed++] = c; + z++; + N--; } p->zBuf[p->nUsed++] = '"'; assert( p->nUsed<p->nAlloc ); } /* -** Append a function parameter value to the JSON string under -** construction. +** Append an sqlite3_value (such as a function parameter) to the JSON +** string under construction in p. */ -static void jsonAppendValue( +static void jsonAppendSqlValue( JsonString *p, /* Append to this JSON string */ sqlite3_value *pValue /* Value to append */ ){ switch( sqlite3_value_type(pValue) ){ case SQLITE_NULL: { - jsonAppendRaw(p, "null", 4); + jsonAppendRawNZ(p, "null", 4); break; } - case SQLITE_INTEGER: case SQLITE_FLOAT: { + jsonPrintf(100, p, "%!0.15g", sqlite3_value_double(pValue)); + break; + } + case SQLITE_INTEGER: { const char *z = (const char*)sqlite3_value_text(pValue); u32 n = (u32)sqlite3_value_bytes(pValue); jsonAppendRaw(p, z, n); @@ -193548,184 +203929,127 @@ static void jsonAppendValue( break; } default: { - if( p->bErr==0 ){ + if( jsonFuncArgMightBeBinary(pValue) ){ + JsonParse px; + memset(&px, 0, sizeof(px)); + px.aBlob = (u8*)sqlite3_value_blob(pValue); + px.nBlob = sqlite3_value_bytes(pValue); + jsonTranslateBlobToText(&px, 0, p); + }else if( p->eErr==0 ){ sqlite3_result_error(p->pCtx, "JSON cannot hold BLOB values", -1); - p->bErr = 2; - jsonReset(p); + p->eErr = JSTRING_ERR; + jsonStringReset(p); } break; } } } - -/* Make the JSON in p the result of the SQL function. +/* Make the text in p (which is probably a generated JSON text string) +** the result of the SQL function. +** +** The JsonString is reset. +** +** If pParse and ctx are both non-NULL, then the SQL string in p is +** loaded into the zJson field of the pParse object as a RCStr and the +** pParse is added to the cache. */ -static void jsonResult(JsonString *p){ - if( p->bErr==0 ){ - sqlite3_result_text64(p->pCtx, p->zBuf, p->nUsed, - p->bStatic ? SQLITE_TRANSIENT : sqlite3_free, - SQLITE_UTF8); - jsonZero(p); +static void jsonReturnString( + JsonString *p, /* String to return */ + JsonParse *pParse, /* JSONB source or NULL */ + sqlite3_context *ctx /* Where to cache */ +){ + assert( (pParse!=0)==(ctx!=0) ); + assert( ctx==0 || ctx==p->pCtx ); + if( p->eErr==0 ){ + int flags = SQLITE_PTR_TO_INT(sqlite3_user_data(p->pCtx)); + if( flags & JSON_BLOB ){ + jsonReturnStringAsBlob(p); + }else if( p->bStatic ){ + sqlite3_result_text64(p->pCtx, p->zBuf, p->nUsed, + SQLITE_TRANSIENT, SQLITE_UTF8); + }else if( jsonStringTerminate(p) ){ + if( pParse && pParse->bJsonIsRCStr==0 && pParse->nBlobAlloc>0 ){ + int rc; + pParse->zJson = sqlite3RCStrRef(p->zBuf); + pParse->nJson = p->nUsed; + pParse->bJsonIsRCStr = 1; + rc = jsonCacheInsert(ctx, pParse); + if( rc==SQLITE_NOMEM ){ + sqlite3_result_error_nomem(ctx); + jsonStringReset(p); + return; + } + } + sqlite3_result_text64(p->pCtx, sqlite3RCStrRef(p->zBuf), p->nUsed, + sqlite3RCStrUnref, + SQLITE_UTF8); + }else{ + sqlite3_result_error_nomem(p->pCtx); + } + }else if( p->eErr & JSTRING_OOM ){ + sqlite3_result_error_nomem(p->pCtx); + }else if( p->eErr & JSTRING_MALFORMED ){ + sqlite3_result_error(p->pCtx, "malformed JSON", -1); } - assert( p->bStatic ); + jsonStringReset(p); } /************************************************************************** -** Utility routines for dealing with JsonNode and JsonParse objects +** Utility routines for dealing with JsonParse objects **************************************************************************/ /* -** Return the number of consecutive JsonNode slots need to represent -** the parsed JSON at pNode. The minimum answer is 1. For ARRAY and -** OBJECT types, the number might be larger. -** -** Appended elements are not counted. The value returned is the number -** by which the JsonNode counter should increment in order to go to the -** next peer value. -*/ -static u32 jsonNodeSize(JsonNode *pNode){ - return pNode->eType>=JSON_ARRAY ? pNode->n+1 : 1; -} - -/* ** Reclaim all memory allocated by a JsonParse object. But do not ** delete the JsonParse object itself. */ static void jsonParseReset(JsonParse *pParse){ - sqlite3_free(pParse->aNode); - pParse->aNode = 0; - pParse->nNode = 0; - pParse->nAlloc = 0; - sqlite3_free(pParse->aUp); - pParse->aUp = 0; + assert( pParse->nJPRef<=1 ); + if( pParse->bJsonIsRCStr ){ + sqlite3RCStrUnref(pParse->zJson); + pParse->zJson = 0; + pParse->nJson = 0; + pParse->bJsonIsRCStr = 0; + } + if( pParse->nBlobAlloc ){ + sqlite3DbFree(pParse->db, pParse->aBlob); + pParse->aBlob = 0; + pParse->nBlob = 0; + pParse->nBlobAlloc = 0; + } } /* -** Free a JsonParse object that was obtained from sqlite3_malloc(). +** Decrement the reference count on the JsonParse object. When the +** count reaches zero, free the object. */ static void jsonParseFree(JsonParse *pParse){ - jsonParseReset(pParse); - sqlite3_free(pParse); -} - -/* -** Convert the JsonNode pNode into a pure JSON string and -** append to pOut. Subsubstructure is also included. Return -** the number of JsonNode objects that are encoded. -*/ -static void jsonRenderNode( - JsonNode *pNode, /* The node to render */ - JsonString *pOut, /* Write JSON here */ - sqlite3_value **aReplace /* Replacement values */ -){ - assert( pNode!=0 ); - if( pNode->jnFlags & (JNODE_REPLACE|JNODE_PATCH) ){ - if( (pNode->jnFlags & JNODE_REPLACE)!=0 && ALWAYS(aReplace!=0) ){ - assert( pNode->eU==4 ); - jsonAppendValue(pOut, aReplace[pNode->u.iReplace]); - return; - } - assert( pNode->eU==5 ); - pNode = pNode->u.pPatch; - } - switch( pNode->eType ){ - default: { - assert( pNode->eType==JSON_NULL ); - jsonAppendRaw(pOut, "null", 4); - break; - } - case JSON_TRUE: { - jsonAppendRaw(pOut, "true", 4); - break; - } - case JSON_FALSE: { - jsonAppendRaw(pOut, "false", 5); - break; - } - case JSON_STRING: { - if( pNode->jnFlags & JNODE_RAW ){ - assert( pNode->eU==1 ); - jsonAppendString(pOut, pNode->u.zJContent, pNode->n); - break; - } - /* no break */ deliberate_fall_through - } - case JSON_REAL: - case JSON_INT: { - assert( pNode->eU==1 ); - jsonAppendRaw(pOut, pNode->u.zJContent, pNode->n); - break; - } - case JSON_ARRAY: { - u32 j = 1; - jsonAppendChar(pOut, '['); - for(;;){ - while( j<=pNode->n ){ - if( (pNode[j].jnFlags & JNODE_REMOVE)==0 ){ - jsonAppendSeparator(pOut); - jsonRenderNode(&pNode[j], pOut, aReplace); - } - j += jsonNodeSize(&pNode[j]); - } - if( (pNode->jnFlags & JNODE_APPEND)==0 ) break; - assert( pNode->eU==2 ); - pNode = &pNode[pNode->u.iAppend]; - j = 1; - } - jsonAppendChar(pOut, ']'); - break; - } - case JSON_OBJECT: { - u32 j = 1; - jsonAppendChar(pOut, '{'); - for(;;){ - while( j<=pNode->n ){ - if( (pNode[j+1].jnFlags & JNODE_REMOVE)==0 ){ - jsonAppendSeparator(pOut); - jsonRenderNode(&pNode[j], pOut, aReplace); - jsonAppendChar(pOut, ':'); - jsonRenderNode(&pNode[j+1], pOut, aReplace); - } - j += 1 + jsonNodeSize(&pNode[j+1]); - } - if( (pNode->jnFlags & JNODE_APPEND)==0 ) break; - assert( pNode->eU==2 ); - pNode = &pNode[pNode->u.iAppend]; - j = 1; - } - jsonAppendChar(pOut, '}'); - break; + if( pParse ){ + if( pParse->nJPRef>1 ){ + pParse->nJPRef--; + }else{ + jsonParseReset(pParse); + sqlite3DbFree(pParse->db, pParse); } } } -/* -** Return a JsonNode and all its descendents as a JSON string. -*/ -static void jsonReturnJson( - JsonNode *pNode, /* Node to return */ - sqlite3_context *pCtx, /* Return value for this function */ - sqlite3_value **aReplace /* Array of replacement values */ -){ - JsonString s; - jsonInit(&s, pCtx); - jsonRenderNode(pNode, &s, aReplace); - jsonResult(&s); - sqlite3_result_subtype(pCtx, JSON_SUBTYPE); -} +/************************************************************************** +** Utility routines for the JSON text parser +**************************************************************************/ /* ** Translate a single byte of Hex into an integer. -** This routine only works if h really is a valid hexadecimal -** character: 0..9a..fA..F +** This routine only gives a correct answer if h really is a valid hexadecimal +** character: 0..9a..fA..F. But unlike sqlite3HexToInt(), it does not +** assert() if the digit is not hex. */ static u8 jsonHexToInt(int h){ - assert( (h>='0' && h<='9') || (h>='a' && h<='f') || (h>='A' && h<='F') ); +#ifdef SQLITE_ASCII + h += 9*(1&(h>>6)); +#endif #ifdef SQLITE_EBCDIC h += 9*(1&~(h>>4)); -#else - h += 9*(1&(h>>6)); #endif return (u8)(h & 0xf); } @@ -193735,10 +204059,6 @@ static u8 jsonHexToInt(int h){ */ static u32 jsonHexToInt4(const char *z){ u32 v; - assert( sqlite3Isxdigit(z[0]) ); - assert( sqlite3Isxdigit(z[1]) ); - assert( sqlite3Isxdigit(z[2]) ); - assert( sqlite3Isxdigit(z[3]) ); v = (jsonHexToInt(z[0])<<12) + (jsonHexToInt(z[1])<<8) + (jsonHexToInt(z[2])<<4) @@ -193747,420 +204067,1098 @@ static u32 jsonHexToInt4(const char *z){ } /* -** Make the JsonNode the return value of the function. +** Return true if z[] begins with 2 (or more) hexadecimal digits */ -static void jsonReturn( - JsonNode *pNode, /* Node to return */ - sqlite3_context *pCtx, /* Return value for this function */ - sqlite3_value **aReplace /* Array of replacement values */ -){ - switch( pNode->eType ){ - default: { - assert( pNode->eType==JSON_NULL ); - sqlite3_result_null(pCtx); - break; - } - case JSON_TRUE: { - sqlite3_result_int(pCtx, 1); - break; - } - case JSON_FALSE: { - sqlite3_result_int(pCtx, 0); - break; - } - case JSON_INT: { - sqlite3_int64 i = 0; - const char *z; - assert( pNode->eU==1 ); - z = pNode->u.zJContent; - if( z[0]=='-' ){ z++; } - while( z[0]>='0' && z[0]<='9' ){ - unsigned v = *(z++) - '0'; - if( i>=LARGEST_INT64/10 ){ - if( i>LARGEST_INT64/10 ) goto int_as_real; - if( z[0]>='0' && z[0]<='9' ) goto int_as_real; - if( v==9 ) goto int_as_real; - if( v==8 ){ - if( pNode->u.zJContent[0]=='-' ){ - sqlite3_result_int64(pCtx, SMALLEST_INT64); - goto int_done; - }else{ - goto int_as_real; +static int jsonIs2Hex(const char *z){ + return sqlite3Isxdigit(z[0]) && sqlite3Isxdigit(z[1]); +} + +/* +** Return true if z[] begins with 4 (or more) hexadecimal digits +*/ +static int jsonIs4Hex(const char *z){ + return jsonIs2Hex(z) && jsonIs2Hex(&z[2]); +} + +/* +** Return the number of bytes of JSON5 whitespace at the beginning of +** the input string z[]. +** +** JSON5 whitespace consists of any of the following characters: +** +** Unicode UTF-8 Name +** U+0009 09 horizontal tab +** U+000a 0a line feed +** U+000b 0b vertical tab +** U+000c 0c form feed +** U+000d 0d carriage return +** U+0020 20 space +** U+00a0 c2 a0 non-breaking space +** U+1680 e1 9a 80 ogham space mark +** U+2000 e2 80 80 en quad +** U+2001 e2 80 81 em quad +** U+2002 e2 80 82 en space +** U+2003 e2 80 83 em space +** U+2004 e2 80 84 three-per-em space +** U+2005 e2 80 85 four-per-em space +** U+2006 e2 80 86 six-per-em space +** U+2007 e2 80 87 figure space +** U+2008 e2 80 88 punctuation space +** U+2009 e2 80 89 thin space +** U+200a e2 80 8a hair space +** U+2028 e2 80 a8 line separator +** U+2029 e2 80 a9 paragraph separator +** U+202f e2 80 af narrow no-break space (NNBSP) +** U+205f e2 81 9f medium mathematical space (MMSP) +** U+3000 e3 80 80 ideographical space +** U+FEFF ef bb bf byte order mark +** +** In addition, comments between '/', '*' and '*', '/' and +** from '/', '/' to end-of-line are also considered to be whitespace. +*/ +static int json5Whitespace(const char *zIn){ + int n = 0; + const u8 *z = (u8*)zIn; + while( 1 /*exit by "goto whitespace_done"*/ ){ + switch( z[n] ){ + case 0x09: + case 0x0a: + case 0x0b: + case 0x0c: + case 0x0d: + case 0x20: { + n++; + break; + } + case '/': { + if( z[n+1]=='*' && z[n+2]!=0 ){ + int j; + for(j=n+3; z[j]!='/' || z[j-1]!='*'; j++){ + if( z[j]==0 ) goto whitespace_done; + } + n = j+1; + break; + }else if( z[n+1]=='/' ){ + int j; + char c; + for(j=n+2; (c = z[j])!=0; j++){ + if( c=='\n' || c=='\r' ) break; + if( 0xe2==(u8)c && 0x80==(u8)z[j+1] + && (0xa8==(u8)z[j+2] || 0xa9==(u8)z[j+2]) + ){ + j += 2; + break; } } + n = j; + if( z[n] ) n++; + break; } - i = i*10 + v; + goto whitespace_done; } - if( pNode->u.zJContent[0]=='-' ){ i = -i; } - sqlite3_result_int64(pCtx, i); - int_done: - break; - int_as_real: ; /* no break */ deliberate_fall_through - } - case JSON_REAL: { - double r; -#ifdef SQLITE_AMALGAMATION - const char *z; - assert( pNode->eU==1 ); - z = pNode->u.zJContent; - sqlite3AtoF(z, &r, sqlite3Strlen30(z), SQLITE_UTF8); -#else - assert( pNode->eU==1 ); - r = strtod(pNode->u.zJContent, 0); -#endif - sqlite3_result_double(pCtx, r); - break; - } - case JSON_STRING: { -#if 0 /* Never happens because JNODE_RAW is only set by json_set(), - ** json_insert() and json_replace() and those routines do not - ** call jsonReturn() */ - if( pNode->jnFlags & JNODE_RAW ){ - assert( pNode->eU==1 ); - sqlite3_result_text(pCtx, pNode->u.zJContent, pNode->n, - SQLITE_TRANSIENT); - }else -#endif - assert( (pNode->jnFlags & JNODE_RAW)==0 ); - if( (pNode->jnFlags & JNODE_ESCAPE)==0 ){ - /* JSON formatted without any backslash-escapes */ - assert( pNode->eU==1 ); - sqlite3_result_text(pCtx, pNode->u.zJContent+1, pNode->n-2, - SQLITE_TRANSIENT); - }else{ - /* Translate JSON formatted string into raw text */ - u32 i; - u32 n = pNode->n; - const char *z; - char *zOut; - u32 j; - assert( pNode->eU==1 ); - z = pNode->u.zJContent; - zOut = sqlite3_malloc( n+1 ); - if( zOut==0 ){ - sqlite3_result_error_nomem(pCtx); + case 0xc2: { + if( z[n+1]==0xa0 ){ + n += 2; break; } - for(i=1, j=0; i<n-1; i++){ - char c = z[i]; - if( c!='\\' ){ - zOut[j++] = c; - }else{ - c = z[++i]; - if( c=='u' ){ - u32 v = jsonHexToInt4(z+i+1); - i += 4; - if( v==0 ) break; - if( v<=0x7f ){ - zOut[j++] = (char)v; - }else if( v<=0x7ff ){ - zOut[j++] = (char)(0xc0 | (v>>6)); - zOut[j++] = 0x80 | (v&0x3f); - }else{ - u32 vlo; - if( (v&0xfc00)==0xd800 - && i<n-6 - && z[i+1]=='\\' - && z[i+2]=='u' - && ((vlo = jsonHexToInt4(z+i+3))&0xfc00)==0xdc00 - ){ - /* We have a surrogate pair */ - v = ((v&0x3ff)<<10) + (vlo&0x3ff) + 0x10000; - i += 6; - zOut[j++] = 0xf0 | (v>>18); - zOut[j++] = 0x80 | ((v>>12)&0x3f); - zOut[j++] = 0x80 | ((v>>6)&0x3f); - zOut[j++] = 0x80 | (v&0x3f); - }else{ - zOut[j++] = 0xe0 | (v>>12); - zOut[j++] = 0x80 | ((v>>6)&0x3f); - zOut[j++] = 0x80 | (v&0x3f); - } - } - }else{ - if( c=='b' ){ - c = '\b'; - }else if( c=='f' ){ - c = '\f'; - }else if( c=='n' ){ - c = '\n'; - }else if( c=='r' ){ - c = '\r'; - }else if( c=='t' ){ - c = '\t'; - } - zOut[j++] = c; - } + goto whitespace_done; + } + case 0xe1: { + if( z[n+1]==0x9a && z[n+2]==0x80 ){ + n += 3; + break; + } + goto whitespace_done; + } + case 0xe2: { + if( z[n+1]==0x80 ){ + u8 c = z[n+2]; + if( c<0x80 ) goto whitespace_done; + if( c<=0x8a || c==0xa8 || c==0xa9 || c==0xaf ){ + n += 3; + break; } + }else if( z[n+1]==0x81 && z[n+2]==0x9f ){ + n += 3; + break; } - zOut[j] = 0; - sqlite3_result_text(pCtx, zOut, j, sqlite3_free); + goto whitespace_done; + } + case 0xe3: { + if( z[n+1]==0x80 && z[n+2]==0x80 ){ + n += 3; + break; + } + goto whitespace_done; + } + case 0xef: { + if( z[n+1]==0xbb && z[n+2]==0xbf ){ + n += 3; + break; + } + goto whitespace_done; + } + default: { + goto whitespace_done; } - break; - } - case JSON_ARRAY: - case JSON_OBJECT: { - jsonReturnJson(pNode, pCtx, aReplace); - break; } } + whitespace_done: + return n; } -/* Forward reference */ -static int jsonParseAddNode(JsonParse*,u32,u32,const char*); - /* -** A macro to hint to the compiler that a function should not be -** inlined. +** Extra floating-point literals to allow in JSON. */ -#if defined(__GNUC__) -# define JSON_NOINLINE __attribute__((noinline)) -#elif defined(_MSC_VER) && _MSC_VER>=1310 -# define JSON_NOINLINE __declspec(noinline) -#else -# define JSON_NOINLINE -#endif +static const struct NanInfName { + char c1; + char c2; + char n; + char eType; + char nRepl; + char *zMatch; + char *zRepl; +} aNanInfName[] = { + { 'i', 'I', 3, JSONB_FLOAT, 7, "inf", "9.0e999" }, + { 'i', 'I', 8, JSONB_FLOAT, 7, "infinity", "9.0e999" }, + { 'n', 'N', 3, JSONB_NULL, 4, "NaN", "null" }, + { 'q', 'Q', 4, JSONB_NULL, 4, "QNaN", "null" }, + { 's', 'S', 4, JSONB_NULL, 4, "SNaN", "null" }, +}; -static JSON_NOINLINE int jsonParseAddNodeExpand( - JsonParse *pParse, /* Append the node to this object */ - u32 eType, /* Node type */ - u32 n, /* Content size or sub-node count */ - const char *zContent /* Content */ +/* +** Report the wrong number of arguments for json_insert(), json_replace() +** or json_set(). +*/ +static void jsonWrongNumArgs( + sqlite3_context *pCtx, + const char *zFuncName ){ - u32 nNew; - JsonNode *pNew; - assert( pParse->nNode>=pParse->nAlloc ); - if( pParse->oom ) return -1; - nNew = pParse->nAlloc*2 + 10; - pNew = sqlite3_realloc64(pParse->aNode, sizeof(JsonNode)*nNew); - if( pNew==0 ){ - pParse->oom = 1; - return -1; + char *zMsg = sqlite3_mprintf("json_%s() needs an odd number of arguments", + zFuncName); + sqlite3_result_error(pCtx, zMsg, -1); + sqlite3_free(zMsg); +} + +/**************************************************************************** +** Utility routines for dealing with the binary BLOB representation of JSON +****************************************************************************/ + +/* +** Expand pParse->aBlob so that it holds at least N bytes. +** +** Return the number of errors. +*/ +static int jsonBlobExpand(JsonParse *pParse, u32 N){ + u8 *aNew; + u32 t; + assert( N>pParse->nBlobAlloc ); + if( pParse->nBlobAlloc==0 ){ + t = 100; + }else{ + t = pParse->nBlobAlloc*2; } - pParse->nAlloc = nNew; - pParse->aNode = pNew; - assert( pParse->nNode<pParse->nAlloc ); - return jsonParseAddNode(pParse, eType, n, zContent); + if( t<N ) t = N+100; + aNew = sqlite3DbRealloc(pParse->db, pParse->aBlob, t); + if( aNew==0 ){ pParse->oom = 1; return 1; } + pParse->aBlob = aNew; + pParse->nBlobAlloc = t; + return 0; } /* -** Create a new JsonNode instance based on the arguments and append that -** instance to the JsonParse. Return the index in pParse->aNode[] of the -** new node, or -1 if a memory allocation fails. +** If pParse->aBlob is not previously editable (because it is taken +** from sqlite3_value_blob(), as indicated by the fact that +** pParse->nBlobAlloc==0 and pParse->nBlob>0) then make it editable +** by making a copy into space obtained from malloc. +** +** Return true on success. Return false on OOM. */ -static int jsonParseAddNode( - JsonParse *pParse, /* Append the node to this object */ - u32 eType, /* Node type */ - u32 n, /* Content size or sub-node count */ - const char *zContent /* Content */ +static int jsonBlobMakeEditable(JsonParse *pParse, u32 nExtra){ + u8 *aOld; + u32 nSize; + assert( !pParse->bReadOnly ); + if( pParse->oom ) return 0; + if( pParse->nBlobAlloc>0 ) return 1; + aOld = pParse->aBlob; + nSize = pParse->nBlob + nExtra; + pParse->aBlob = 0; + if( jsonBlobExpand(pParse, nSize) ){ + return 0; + } + assert( pParse->nBlobAlloc >= pParse->nBlob + nExtra ); + memcpy(pParse->aBlob, aOld, pParse->nBlob); + return 1; +} + +/* Expand pParse->aBlob and append one bytes. +*/ +static SQLITE_NOINLINE void jsonBlobExpandAndAppendOneByte( + JsonParse *pParse, + u8 c ){ - JsonNode *p; - if( pParse->aNode==0 || pParse->nNode>=pParse->nAlloc ){ - return jsonParseAddNodeExpand(pParse, eType, n, zContent); + jsonBlobExpand(pParse, pParse->nBlob+1); + if( pParse->oom==0 ){ + assert( pParse->nBlob+1<=pParse->nBlobAlloc ); + pParse->aBlob[pParse->nBlob++] = c; } - p = &pParse->aNode[pParse->nNode]; - p->eType = (u8)eType; - p->jnFlags = 0; - VVA( p->eU = zContent ? 1 : 0 ); - p->n = n; - p->u.zJContent = zContent; - return pParse->nNode++; } -/* -** Return true if z[] begins with 4 (or more) hexadecimal digits +/* Append a single character. */ -static int jsonIs4Hex(const char *z){ - int i; - for(i=0; i<4; i++) if( !sqlite3Isxdigit(z[i]) ) return 0; +static void jsonBlobAppendOneByte(JsonParse *pParse, u8 c){ + if( pParse->nBlob >= pParse->nBlobAlloc ){ + jsonBlobExpandAndAppendOneByte(pParse, c); + }else{ + pParse->aBlob[pParse->nBlob++] = c; + } +} + +/* Slow version of jsonBlobAppendNode() that first resizes the +** pParse->aBlob structure. +*/ +static void jsonBlobAppendNode(JsonParse*,u8,u32,const void*); +static SQLITE_NOINLINE void jsonBlobExpandAndAppendNode( + JsonParse *pParse, + u8 eType, + u32 szPayload, + const void *aPayload +){ + if( jsonBlobExpand(pParse, pParse->nBlob+szPayload+9) ) return; + jsonBlobAppendNode(pParse, eType, szPayload, aPayload); +} + + +/* Append an node type byte together with the payload size and +** possibly also the payload. +** +** If aPayload is not NULL, then it is a pointer to the payload which +** is also appended. If aPayload is NULL, the pParse->aBlob[] array +** is resized (if necessary) so that it is big enough to hold the +** payload, but the payload is not appended and pParse->nBlob is left +** pointing to where the first byte of payload will eventually be. +*/ +static void jsonBlobAppendNode( + JsonParse *pParse, /* The JsonParse object under construction */ + u8 eType, /* Node type. One of JSONB_* */ + u32 szPayload, /* Number of bytes of payload */ + const void *aPayload /* The payload. Might be NULL */ +){ + u8 *a; + if( pParse->nBlob+szPayload+9 > pParse->nBlobAlloc ){ + jsonBlobExpandAndAppendNode(pParse,eType,szPayload,aPayload); + return; + } + assert( pParse->aBlob!=0 ); + a = &pParse->aBlob[pParse->nBlob]; + if( szPayload<=11 ){ + a[0] = eType | (szPayload<<4); + pParse->nBlob += 1; + }else if( szPayload<=0xff ){ + a[0] = eType | 0xc0; + a[1] = szPayload & 0xff; + pParse->nBlob += 2; + }else if( szPayload<=0xffff ){ + a[0] = eType | 0xd0; + a[1] = (szPayload >> 8) & 0xff; + a[2] = szPayload & 0xff; + pParse->nBlob += 3; + }else{ + a[0] = eType | 0xe0; + a[1] = (szPayload >> 24) & 0xff; + a[2] = (szPayload >> 16) & 0xff; + a[3] = (szPayload >> 8) & 0xff; + a[4] = szPayload & 0xff; + pParse->nBlob += 5; + } + if( aPayload ){ + pParse->nBlob += szPayload; + memcpy(&pParse->aBlob[pParse->nBlob-szPayload], aPayload, szPayload); + } +} + +/* Change the payload size for the node at index i to be szPayload. +*/ +static int jsonBlobChangePayloadSize( + JsonParse *pParse, + u32 i, + u32 szPayload +){ + u8 *a; + u8 szType; + u8 nExtra; + u8 nNeeded; + int delta; + if( pParse->oom ) return 0; + a = &pParse->aBlob[i]; + szType = a[0]>>4; + if( szType<=11 ){ + nExtra = 0; + }else if( szType==12 ){ + nExtra = 1; + }else if( szType==13 ){ + nExtra = 2; + }else{ + nExtra = 4; + } + if( szPayload<=11 ){ + nNeeded = 0; + }else if( szPayload<=0xff ){ + nNeeded = 1; + }else if( szPayload<=0xffff ){ + nNeeded = 2; + }else{ + nNeeded = 4; + } + delta = nNeeded - nExtra; + if( delta ){ + u32 newSize = pParse->nBlob + delta; + if( delta>0 ){ + if( newSize>pParse->nBlobAlloc && jsonBlobExpand(pParse, newSize) ){ + return 0; /* OOM error. Error state recorded in pParse->oom. */ + } + a = &pParse->aBlob[i]; + memmove(&a[1+delta], &a[1], pParse->nBlob - (i+1)); + }else{ + memmove(&a[1], &a[1-delta], pParse->nBlob - (i+1-delta)); + } + pParse->nBlob = newSize; + } + if( nNeeded==0 ){ + a[0] = (a[0] & 0x0f) | (szPayload<<4); + }else if( nNeeded==1 ){ + a[0] = (a[0] & 0x0f) | 0xc0; + a[1] = szPayload & 0xff; + }else if( nNeeded==2 ){ + a[0] = (a[0] & 0x0f) | 0xd0; + a[1] = (szPayload >> 8) & 0xff; + a[2] = szPayload & 0xff; + }else{ + a[0] = (a[0] & 0x0f) | 0xe0; + a[1] = (szPayload >> 24) & 0xff; + a[2] = (szPayload >> 16) & 0xff; + a[3] = (szPayload >> 8) & 0xff; + a[4] = szPayload & 0xff; + } + return delta; +} + +/* +** If z[0] is 'u' and is followed by exactly 4 hexadecimal character, +** then set *pOp to JSONB_TEXTJ and return true. If not, do not make +** any changes to *pOp and return false. +*/ +static int jsonIs4HexB(const char *z, int *pOp){ + if( z[0]!='u' ) return 0; + if( !jsonIs4Hex(&z[1]) ) return 0; + *pOp = JSONB_TEXTJ; return 1; } /* -** Parse a single JSON value which begins at pParse->zJson[i]. Return the -** index of the first character past the end of the value parsed. +** Check a single element of the JSONB in pParse for validity. +** +** The element to be checked starts at offset i and must end at on the +** last byte before iEnd. +** +** Return 0 if everything is correct. Return the 1-based byte offset of the +** error if a problem is detected. (In other words, if the error is at offset +** 0, return 1). +*/ +static u32 jsonbValidityCheck( + const JsonParse *pParse, /* Input JSONB. Only aBlob and nBlob are used */ + u32 i, /* Start of element as pParse->aBlob[i] */ + u32 iEnd, /* One more than the last byte of the element */ + u32 iDepth /* Current nesting depth */ +){ + u32 n, sz, j, k; + const u8 *z; + u8 x; + if( iDepth>JSON_MAX_DEPTH ) return i+1; + sz = 0; + n = jsonbPayloadSize(pParse, i, &sz); + if( NEVER(n==0) ) return i+1; /* Checked by caller */ + if( NEVER(i+n+sz!=iEnd) ) return i+1; /* Checked by caller */ + z = pParse->aBlob; + x = z[i] & 0x0f; + switch( x ){ + case JSONB_NULL: + case JSONB_TRUE: + case JSONB_FALSE: { + return n+sz==1 ? 0 : i+1; + } + case JSONB_INT: { + if( sz<1 ) return i+1; + j = i+n; + if( z[j]=='-' ){ + j++; + if( sz<2 ) return i+1; + } + k = i+n+sz; + while( j<k ){ + if( sqlite3Isdigit(z[j]) ){ + j++; + }else{ + return j+1; + } + } + return 0; + } + case JSONB_INT5: { + if( sz<3 ) return i+1; + j = i+n; + if( z[j]=='-' ){ + if( sz<4 ) return i+1; + j++; + } + if( z[j]!='0' ) return i+1; + if( z[j+1]!='x' && z[j+1]!='X' ) return j+2; + j += 2; + k = i+n+sz; + while( j<k ){ + if( sqlite3Isxdigit(z[j]) ){ + j++; + }else{ + return j+1; + } + } + return 0; + } + case JSONB_FLOAT: + case JSONB_FLOAT5: { + u8 seen = 0; /* 0: initial. 1: '.' seen 2: 'e' seen */ + if( sz<2 ) return i+1; + j = i+n; + k = j+sz; + if( z[j]=='-' ){ + j++; + if( sz<3 ) return i+1; + } + if( z[j]=='.' ){ + if( x==JSONB_FLOAT ) return j+1; + if( !sqlite3Isdigit(z[j+1]) ) return j+1; + j += 2; + seen = 1; + }else if( z[j]=='0' && x==JSONB_FLOAT ){ + if( j+3>k ) return j+1; + if( z[j+1]!='.' && z[j+1]!='e' && z[j+1]!='E' ) return j+1; + j++; + } + for(; j<k; j++){ + if( sqlite3Isdigit(z[j]) ) continue; + if( z[j]=='.' ){ + if( seen>0 ) return j+1; + if( x==JSONB_FLOAT && (j==k-1 || !sqlite3Isdigit(z[j+1])) ){ + return j+1; + } + seen = 1; + continue; + } + if( z[j]=='e' || z[j]=='E' ){ + if( seen==2 ) return j+1; + if( j==k-1 ) return j+1; + if( z[j+1]=='+' || z[j+1]=='-' ){ + j++; + if( j==k-1 ) return j+1; + } + seen = 2; + continue; + } + return j+1; + } + if( seen==0 ) return i+1; + return 0; + } + case JSONB_TEXT: { + j = i+n; + k = j+sz; + while( j<k ){ + if( !jsonIsOk[z[j]] && z[j]!='\'' ) return j+1; + j++; + } + return 0; + } + case JSONB_TEXTJ: + case JSONB_TEXT5: { + j = i+n; + k = j+sz; + while( j<k ){ + if( !jsonIsOk[z[j]] && z[j]!='\'' ){ + if( z[j]=='"' ){ + if( x==JSONB_TEXTJ ) return j+1; + }else if( z[j]!='\\' || j+1>=k ){ + return j+1; + }else if( strchr("\"\\/bfnrt",z[j+1])!=0 ){ + j++; + }else if( z[j+1]=='u' ){ + if( j+5>=k ) return j+1; + if( !jsonIs4Hex((const char*)&z[j+2]) ) return j+1; + j++; + }else if( x!=JSONB_TEXT5 ){ + return j+1; + }else{ + u32 c = 0; + u32 szC = jsonUnescapeOneChar((const char*)&z[j], k-j, &c); + if( c==JSON_INVALID_CHAR ) return j+1; + j += szC - 1; + } + } + j++; + } + return 0; + } + case JSONB_TEXTRAW: { + return 0; + } + case JSONB_ARRAY: { + u32 sub; + j = i+n; + k = j+sz; + while( j<k ){ + sz = 0; + n = jsonbPayloadSize(pParse, j, &sz); + if( n==0 ) return j+1; + if( j+n+sz>k ) return j+1; + sub = jsonbValidityCheck(pParse, j, j+n+sz, iDepth+1); + if( sub ) return sub; + j += n + sz; + } + assert( j==k ); + return 0; + } + case JSONB_OBJECT: { + u32 cnt = 0; + u32 sub; + j = i+n; + k = j+sz; + while( j<k ){ + sz = 0; + n = jsonbPayloadSize(pParse, j, &sz); + if( n==0 ) return j+1; + if( j+n+sz>k ) return j+1; + if( (cnt & 1)==0 ){ + x = z[j] & 0x0f; + if( x<JSONB_TEXT || x>JSONB_TEXTRAW ) return j+1; + } + sub = jsonbValidityCheck(pParse, j, j+n+sz, iDepth+1); + if( sub ) return sub; + cnt++; + j += n + sz; + } + assert( j==k ); + if( (cnt & 1)!=0 ) return j+1; + return 0; + } + default: { + return i+1; + } + } +} + +/* +** Translate a single element of JSON text at pParse->zJson[i] into +** its equivalent binary JSONB representation. Append the translation into +** pParse->aBlob[] beginning at pParse->nBlob. The size of +** pParse->aBlob[] is increased as necessary. ** -** Return negative for a syntax error. Special cases: return -2 if the -** first non-whitespace character is '}' and return -3 if the first -** non-whitespace character is ']'. +** Return the index of the first character past the end of the element parsed, +** or one of the following special result codes: +** +** 0 End of input +** -1 Syntax error or OOM +** -2 '}' seen \ +** -3 ']' seen \___ For these returns, pParse->iErr is set to +** -4 ',' seen / the index in zJson[] of the seen character +** -5 ':' seen / */ -static int jsonParseValue(JsonParse *pParse, u32 i){ +static int jsonTranslateTextToBlob(JsonParse *pParse, u32 i){ char c; u32 j; - int iThis; + u32 iThis, iStart; int x; - JsonNode *pNode; + u8 t; const char *z = pParse->zJson; - while( fast_isspace(z[i]) ){ i++; } - if( (c = z[i])=='{' ){ +json_parse_restart: + switch( (u8)z[i] ){ + case '{': { /* Parse object */ - iThis = jsonParseAddNode(pParse, JSON_OBJECT, 0, 0); - if( iThis<0 ) return -1; + iThis = pParse->nBlob; + jsonBlobAppendNode(pParse, JSONB_OBJECT, pParse->nJson-i, 0); + if( ++pParse->iDepth > JSON_MAX_DEPTH ){ + pParse->iErr = i; + return -1; + } + iStart = pParse->nBlob; for(j=i+1;;j++){ - while( fast_isspace(z[j]) ){ j++; } - if( ++pParse->iDepth > JSON_MAX_DEPTH ) return -1; - x = jsonParseValue(pParse, j); - if( x<0 ){ - pParse->iDepth--; - if( x==(-2) && pParse->nNode==(u32)iThis+1 ) return j+1; - return -1; + u32 iBlob = pParse->nBlob; + x = jsonTranslateTextToBlob(pParse, j); + if( x<=0 ){ + int op; + if( x==(-2) ){ + j = pParse->iErr; + if( pParse->nBlob!=(u32)iStart ) pParse->hasNonstd = 1; + break; + } + j += json5Whitespace(&z[j]); + op = JSONB_TEXT; + if( sqlite3JsonId1(z[j]) + || (z[j]=='\\' && jsonIs4HexB(&z[j+1], &op)) + ){ + int k = j+1; + while( (sqlite3JsonId2(z[k]) && json5Whitespace(&z[k])==0) + || (z[k]=='\\' && jsonIs4HexB(&z[k+1], &op)) + ){ + k++; + } + assert( iBlob==pParse->nBlob ); + jsonBlobAppendNode(pParse, op, k-j, &z[j]); + pParse->hasNonstd = 1; + x = k; + }else{ + if( x!=-1 ) pParse->iErr = j; + return -1; + } } if( pParse->oom ) return -1; - pNode = &pParse->aNode[pParse->nNode-1]; - if( pNode->eType!=JSON_STRING ) return -1; - pNode->jnFlags |= JNODE_LABEL; + t = pParse->aBlob[iBlob] & 0x0f; + if( t<JSONB_TEXT || t>JSONB_TEXTRAW ){ + pParse->iErr = j; + return -1; + } j = x; - while( fast_isspace(z[j]) ){ j++; } - if( z[j]!=':' ) return -1; - j++; - x = jsonParseValue(pParse, j); - pParse->iDepth--; - if( x<0 ) return -1; + if( z[j]==':' ){ + j++; + }else{ + if( jsonIsspace(z[j]) ){ + /* strspn() is not helpful here */ + do{ j++; }while( jsonIsspace(z[j]) ); + if( z[j]==':' ){ + j++; + goto parse_object_value; + } + } + x = jsonTranslateTextToBlob(pParse, j); + if( x!=(-5) ){ + if( x!=(-1) ) pParse->iErr = j; + return -1; + } + j = pParse->iErr+1; + } + parse_object_value: + x = jsonTranslateTextToBlob(pParse, j); + if( x<=0 ){ + if( x!=(-1) ) pParse->iErr = j; + return -1; + } j = x; - while( fast_isspace(z[j]) ){ j++; } - c = z[j]; - if( c==',' ) continue; - if( c!='}' ) return -1; - break; + if( z[j]==',' ){ + continue; + }else if( z[j]=='}' ){ + break; + }else{ + if( jsonIsspace(z[j]) ){ + j += 1 + (u32)strspn(&z[j+1], jsonSpaces); + if( z[j]==',' ){ + continue; + }else if( z[j]=='}' ){ + break; + } + } + x = jsonTranslateTextToBlob(pParse, j); + if( x==(-4) ){ + j = pParse->iErr; + continue; + } + if( x==(-2) ){ + j = pParse->iErr; + break; + } + } + pParse->iErr = j; + return -1; } - pParse->aNode[iThis].n = pParse->nNode - (u32)iThis - 1; + jsonBlobChangePayloadSize(pParse, iThis, pParse->nBlob - iStart); + pParse->iDepth--; return j+1; - }else if( c=='[' ){ + } + case '[': { /* Parse array */ - iThis = jsonParseAddNode(pParse, JSON_ARRAY, 0, 0); - if( iThis<0 ) return -1; - memset(&pParse->aNode[iThis].u, 0, sizeof(pParse->aNode[iThis].u)); + iThis = pParse->nBlob; + jsonBlobAppendNode(pParse, JSONB_ARRAY, pParse->nJson - i, 0); + iStart = pParse->nBlob; + if( pParse->oom ) return -1; + if( ++pParse->iDepth > JSON_MAX_DEPTH ){ + pParse->iErr = i; + return -1; + } for(j=i+1;;j++){ - while( fast_isspace(z[j]) ){ j++; } - if( ++pParse->iDepth > JSON_MAX_DEPTH ) return -1; - x = jsonParseValue(pParse, j); - pParse->iDepth--; - if( x<0 ){ - if( x==(-3) && pParse->nNode==(u32)iThis+1 ) return j+1; + x = jsonTranslateTextToBlob(pParse, j); + if( x<=0 ){ + if( x==(-3) ){ + j = pParse->iErr; + if( pParse->nBlob!=iStart ) pParse->hasNonstd = 1; + break; + } + if( x!=(-1) ) pParse->iErr = j; return -1; } j = x; - while( fast_isspace(z[j]) ){ j++; } - c = z[j]; - if( c==',' ) continue; - if( c!=']' ) return -1; - break; + if( z[j]==',' ){ + continue; + }else if( z[j]==']' ){ + break; + }else{ + if( jsonIsspace(z[j]) ){ + j += 1 + (u32)strspn(&z[j+1], jsonSpaces); + if( z[j]==',' ){ + continue; + }else if( z[j]==']' ){ + break; + } + } + x = jsonTranslateTextToBlob(pParse, j); + if( x==(-4) ){ + j = pParse->iErr; + continue; + } + if( x==(-3) ){ + j = pParse->iErr; + break; + } + } + pParse->iErr = j; + return -1; } - pParse->aNode[iThis].n = pParse->nNode - (u32)iThis - 1; + jsonBlobChangePayloadSize(pParse, iThis, pParse->nBlob - iStart); + pParse->iDepth--; return j+1; - }else if( c=='"' ){ + } + case '\'': { + u8 opcode; + char cDelim; + pParse->hasNonstd = 1; + opcode = JSONB_TEXT; + goto parse_string; + case '"': /* Parse string */ - u8 jnFlags = 0; + opcode = JSONB_TEXT; + parse_string: + cDelim = z[i]; j = i+1; - for(;;){ - c = z[j]; - if( (c & ~0x1f)==0 ){ - /* Control characters are not allowed in strings */ - return -1; + while( 1 /*exit-by-break*/ ){ + if( jsonIsOk[(u8)z[j]] ){ + if( !jsonIsOk[(u8)z[j+1]] ){ + j += 1; + }else if( !jsonIsOk[(u8)z[j+2]] ){ + j += 2; + }else{ + j += 3; + continue; + } } - if( c=='\\' ){ + c = z[j]; + if( c==cDelim ){ + break; + }else if( c=='\\' ){ c = z[++j]; if( c=='"' || c=='\\' || c=='/' || c=='b' || c=='f' || c=='n' || c=='r' || c=='t' - || (c=='u' && jsonIs4Hex(z+j+1)) ){ - jnFlags = JNODE_ESCAPE; + || (c=='u' && jsonIs4Hex(&z[j+1])) ){ + if( opcode==JSONB_TEXT ) opcode = JSONB_TEXTJ; + }else if( c=='\'' || c=='0' || c=='v' || c=='\n' + || (0xe2==(u8)c && 0x80==(u8)z[j+1] + && (0xa8==(u8)z[j+2] || 0xa9==(u8)z[j+2])) + || (c=='x' && jsonIs2Hex(&z[j+1])) ){ + opcode = JSONB_TEXT5; + pParse->hasNonstd = 1; + }else if( c=='\r' ){ + if( z[j+1]=='\n' ) j++; + opcode = JSONB_TEXT5; + pParse->hasNonstd = 1; }else{ + pParse->iErr = j; return -1; } + }else if( c<=0x1f ){ + /* Control characters are not allowed in strings */ + pParse->iErr = j; + return -1; }else if( c=='"' ){ - break; + opcode = JSONB_TEXT5; } j++; } - jsonParseAddNode(pParse, JSON_STRING, j+1-i, &z[i]); - if( !pParse->oom ) pParse->aNode[pParse->nNode-1].jnFlags = jnFlags; + jsonBlobAppendNode(pParse, opcode, j-1-i, &z[i+1]); return j+1; - }else if( c=='n' - && strncmp(z+i,"null",4)==0 - && !sqlite3Isalnum(z[i+4]) ){ - jsonParseAddNode(pParse, JSON_NULL, 0, 0); - return i+4; - }else if( c=='t' - && strncmp(z+i,"true",4)==0 - && !sqlite3Isalnum(z[i+4]) ){ - jsonParseAddNode(pParse, JSON_TRUE, 0, 0); - return i+4; - }else if( c=='f' - && strncmp(z+i,"false",5)==0 - && !sqlite3Isalnum(z[i+5]) ){ - jsonParseAddNode(pParse, JSON_FALSE, 0, 0); - return i+5; - }else if( c=='-' || (c>='0' && c<='9') ){ + } + case 't': { + if( strncmp(z+i,"true",4)==0 && !sqlite3Isalnum(z[i+4]) ){ + jsonBlobAppendOneByte(pParse, JSONB_TRUE); + return i+4; + } + pParse->iErr = i; + return -1; + } + case 'f': { + if( strncmp(z+i,"false",5)==0 && !sqlite3Isalnum(z[i+5]) ){ + jsonBlobAppendOneByte(pParse, JSONB_FALSE); + return i+5; + } + pParse->iErr = i; + return -1; + } + case '+': { + u8 seenE; + pParse->hasNonstd = 1; + t = 0x00; /* Bit 0x01: JSON5. Bit 0x02: FLOAT */ + goto parse_number; + case '.': + if( sqlite3Isdigit(z[i+1]) ){ + pParse->hasNonstd = 1; + t = 0x03; /* Bit 0x01: JSON5. Bit 0x02: FLOAT */ + seenE = 0; + goto parse_number_2; + } + pParse->iErr = i; + return -1; + case '-': + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': /* Parse number */ - u8 seenDP = 0; - u8 seenE = 0; + t = 0x00; /* Bit 0x01: JSON5. Bit 0x02: FLOAT */ + parse_number: + seenE = 0; assert( '-' < '0' ); + assert( '+' < '0' ); + assert( '.' < '0' ); + c = z[i]; + if( c<='0' ){ - j = c=='-' ? i+1 : i; - if( z[j]=='0' && z[j+1]>='0' && z[j+1]<='9' ) return -1; + if( c=='0' ){ + if( (z[i+1]=='x' || z[i+1]=='X') && sqlite3Isxdigit(z[i+2]) ){ + assert( t==0x00 ); + pParse->hasNonstd = 1; + t = 0x01; + for(j=i+3; sqlite3Isxdigit(z[j]); j++){} + goto parse_number_finish; + }else if( sqlite3Isdigit(z[i+1]) ){ + pParse->iErr = i+1; + return -1; + } + }else{ + if( !sqlite3Isdigit(z[i+1]) ){ + /* JSON5 allows for "+Infinity" and "-Infinity" using exactly + ** that case. SQLite also allows these in any case and it allows + ** "+inf" and "-inf". */ + if( (z[i+1]=='I' || z[i+1]=='i') + && sqlite3StrNICmp(&z[i+1], "inf",3)==0 + ){ + pParse->hasNonstd = 1; + if( z[i]=='-' ){ + jsonBlobAppendNode(pParse, JSONB_FLOAT, 6, "-9e999"); + }else{ + jsonBlobAppendNode(pParse, JSONB_FLOAT, 5, "9e999"); + } + return i + (sqlite3StrNICmp(&z[i+4],"inity",5)==0 ? 9 : 4); + } + if( z[i+1]=='.' ){ + pParse->hasNonstd = 1; + t |= 0x01; + goto parse_number_2; + } + pParse->iErr = i; + return -1; + } + if( z[i+1]=='0' ){ + if( sqlite3Isdigit(z[i+2]) ){ + pParse->iErr = i+1; + return -1; + }else if( (z[i+2]=='x' || z[i+2]=='X') && sqlite3Isxdigit(z[i+3]) ){ + pParse->hasNonstd = 1; + t |= 0x01; + for(j=i+4; sqlite3Isxdigit(z[j]); j++){} + goto parse_number_finish; + } + } + } } - j = i+1; - for(;; j++){ + + parse_number_2: + for(j=i+1;; j++){ c = z[j]; - if( c>='0' && c<='9' ) continue; + if( sqlite3Isdigit(c) ) continue; if( c=='.' ){ - if( z[j-1]=='-' ) return -1; - if( seenDP ) return -1; - seenDP = 1; + if( (t & 0x02)!=0 ){ + pParse->iErr = j; + return -1; + } + t |= 0x02; continue; } if( c=='e' || c=='E' ){ - if( z[j-1]<'0' ) return -1; - if( seenE ) return -1; - seenDP = seenE = 1; + if( z[j-1]<'0' ){ + if( ALWAYS(z[j-1]=='.') && ALWAYS(j-2>=i) && sqlite3Isdigit(z[j-2]) ){ + pParse->hasNonstd = 1; + t |= 0x01; + }else{ + pParse->iErr = j; + return -1; + } + } + if( seenE ){ + pParse->iErr = j; + return -1; + } + t |= 0x02; + seenE = 1; c = z[j+1]; if( c=='+' || c=='-' ){ j++; c = z[j+1]; } - if( c<'0' || c>'9' ) return -1; + if( c<'0' || c>'9' ){ + pParse->iErr = j; + return -1; + } continue; } break; } - if( z[j-1]<'0' ) return -1; - jsonParseAddNode(pParse, seenDP ? JSON_REAL : JSON_INT, - j - i, &z[i]); + if( z[j-1]<'0' ){ + if( ALWAYS(z[j-1]=='.') && ALWAYS(j-2>=i) && sqlite3Isdigit(z[j-2]) ){ + pParse->hasNonstd = 1; + t |= 0x01; + }else{ + pParse->iErr = j; + return -1; + } + } + parse_number_finish: + assert( JSONB_INT+0x01==JSONB_INT5 ); + assert( JSONB_FLOAT+0x01==JSONB_FLOAT5 ); + assert( JSONB_INT+0x02==JSONB_FLOAT ); + if( z[i]=='+' ) i++; + jsonBlobAppendNode(pParse, JSONB_INT+t, j-i, &z[i]); return j; - }else if( c=='}' ){ + } + case '}': { + pParse->iErr = i; return -2; /* End of {...} */ - }else if( c==']' ){ + } + case ']': { + pParse->iErr = i; return -3; /* End of [...] */ - }else if( c==0 ){ + } + case ',': { + pParse->iErr = i; + return -4; /* List separator */ + } + case ':': { + pParse->iErr = i; + return -5; /* Object label/value separator */ + } + case 0: { return 0; /* End of file */ - }else{ + } + case 0x09: + case 0x0a: + case 0x0d: + case 0x20: { + i += 1 + (u32)strspn(&z[i+1], jsonSpaces); + goto json_parse_restart; + } + case 0x0b: + case 0x0c: + case '/': + case 0xc2: + case 0xe1: + case 0xe2: + case 0xe3: + case 0xef: { + j = json5Whitespace(&z[i]); + if( j>0 ){ + i += j; + pParse->hasNonstd = 1; + goto json_parse_restart; + } + pParse->iErr = i; + return -1; + } + case 'n': { + if( strncmp(z+i,"null",4)==0 && !sqlite3Isalnum(z[i+4]) ){ + jsonBlobAppendOneByte(pParse, JSONB_NULL); + return i+4; + } + /* fall-through into the default case that checks for NaN */ + } + default: { + u32 k; + int nn; + c = z[i]; + for(k=0; k<sizeof(aNanInfName)/sizeof(aNanInfName[0]); k++){ + if( c!=aNanInfName[k].c1 && c!=aNanInfName[k].c2 ) continue; + nn = aNanInfName[k].n; + if( sqlite3StrNICmp(&z[i], aNanInfName[k].zMatch, nn)!=0 ){ + continue; + } + if( sqlite3Isalnum(z[i+nn]) ) continue; + if( aNanInfName[k].eType==JSONB_FLOAT ){ + jsonBlobAppendNode(pParse, JSONB_FLOAT, 5, "9e999"); + }else{ + jsonBlobAppendOneByte(pParse, JSONB_NULL); + } + pParse->hasNonstd = 1; + return i + nn; + } + pParse->iErr = i; return -1; /* Syntax error */ } + } /* End switch(z[i]) */ } + /* ** Parse a complete JSON string. Return 0 on success or non-zero if there -** are any errors. If an error occurs, free all memory associated with -** pParse. +** are any errors. If an error occurs, free all memory held by pParse, +** but not pParse itself. ** -** pParse is uninitialized when this routine is called. +** pParse must be initialized to an empty parse object prior to calling +** this routine. */ -static int jsonParse( +static int jsonConvertTextToBlob( JsonParse *pParse, /* Initialize and fill this JsonParse object */ - sqlite3_context *pCtx, /* Report errors here */ - const char *zJson /* Input JSON text to be parsed */ + sqlite3_context *pCtx /* Report errors here */ ){ int i; - memset(pParse, 0, sizeof(*pParse)); - if( zJson==0 ) return 1; - pParse->zJson = zJson; - i = jsonParseValue(pParse, 0); + const char *zJson = pParse->zJson; + i = jsonTranslateTextToBlob(pParse, 0); if( pParse->oom ) i = -1; if( i>0 ){ +#ifdef SQLITE_DEBUG assert( pParse->iDepth==0 ); - while( fast_isspace(zJson[i]) ) i++; - if( zJson[i] ) i = -1; + if( sqlite3Config.bJsonSelfcheck ){ + assert( jsonbValidityCheck(pParse, 0, pParse->nBlob, 0)==0 ); + } +#endif + while( jsonIsspace(zJson[i]) ) i++; + if( zJson[i] ){ + i += json5Whitespace(&zJson[i]); + if( zJson[i] ){ + if( pCtx ) sqlite3_result_error(pCtx, "malformed JSON", -1); + jsonParseReset(pParse); + return 1; + } + pParse->hasNonstd = 1; + } } if( i<=0 ){ if( pCtx!=0 ){ @@ -194176,161 +205174,715 @@ static int jsonParse( return 0; } -/* Mark node i of pParse as being a child of iParent. Call recursively -** to fill in all the descendants of node i. +/* +** The input string pStr is a well-formed JSON text string. Convert +** this into the JSONB format and make it the return value of the +** SQL function. */ -static void jsonParseFillInParentage(JsonParse *pParse, u32 i, u32 iParent){ - JsonNode *pNode = &pParse->aNode[i]; - u32 j; - pParse->aUp[i] = iParent; - switch( pNode->eType ){ - case JSON_ARRAY: { - for(j=1; j<=pNode->n; j += jsonNodeSize(pNode+j)){ - jsonParseFillInParentage(pParse, i+j, i); +static void jsonReturnStringAsBlob(JsonString *pStr){ + JsonParse px; + memset(&px, 0, sizeof(px)); + jsonStringTerminate(pStr); + px.zJson = pStr->zBuf; + px.nJson = pStr->nUsed; + px.db = sqlite3_context_db_handle(pStr->pCtx); + (void)jsonTranslateTextToBlob(&px, 0); + if( px.oom ){ + sqlite3DbFree(px.db, px.aBlob); + sqlite3_result_error_nomem(pStr->pCtx); + }else{ + assert( px.nBlobAlloc>0 ); + assert( !px.bReadOnly ); + sqlite3_result_blob(pStr->pCtx, px.aBlob, px.nBlob, SQLITE_DYNAMIC); + } +} + +/* The byte at index i is a node type-code. This routine +** determines the payload size for that node and writes that +** payload size in to *pSz. It returns the offset from i to the +** beginning of the payload. Return 0 on error. +*/ +static u32 jsonbPayloadSize(const JsonParse *pParse, u32 i, u32 *pSz){ + u8 x; + u32 sz; + u32 n; + if( NEVER(i>pParse->nBlob) ){ + *pSz = 0; + return 0; + } + x = pParse->aBlob[i]>>4; + if( x<=11 ){ + sz = x; + n = 1; + }else if( x==12 ){ + if( i+1>=pParse->nBlob ){ + *pSz = 0; + return 0; + } + sz = pParse->aBlob[i+1]; + n = 2; + }else if( x==13 ){ + if( i+2>=pParse->nBlob ){ + *pSz = 0; + return 0; + } + sz = (pParse->aBlob[i+1]<<8) + pParse->aBlob[i+2]; + n = 3; + }else if( x==14 ){ + if( i+4>=pParse->nBlob ){ + *pSz = 0; + return 0; + } + sz = ((u32)pParse->aBlob[i+1]<<24) + (pParse->aBlob[i+2]<<16) + + (pParse->aBlob[i+3]<<8) + pParse->aBlob[i+4]; + n = 5; + }else{ + if( i+8>=pParse->nBlob + || pParse->aBlob[i+1]!=0 + || pParse->aBlob[i+2]!=0 + || pParse->aBlob[i+3]!=0 + || pParse->aBlob[i+4]!=0 + ){ + *pSz = 0; + return 0; + } + sz = (pParse->aBlob[i+5]<<24) + (pParse->aBlob[i+6]<<16) + + (pParse->aBlob[i+7]<<8) + pParse->aBlob[i+8]; + n = 9; + } + if( (i64)i+sz+n > pParse->nBlob + && (i64)i+sz+n > pParse->nBlob-pParse->delta + ){ + sz = 0; + n = 0; + } + *pSz = sz; + return n; +} + + +/* +** Translate the binary JSONB representation of JSON beginning at +** pParse->aBlob[i] into a JSON text string. Append the JSON +** text onto the end of pOut. Return the index in pParse->aBlob[] +** of the first byte past the end of the element that is translated. +** +** If an error is detected in the BLOB input, the pOut->eErr flag +** might get set to JSTRING_MALFORMED. But not all BLOB input errors +** are detected. So a malformed JSONB input might either result +** in an error, or in incorrect JSON. +** +** The pOut->eErr JSTRING_OOM flag is set on a OOM. +*/ +static u32 jsonTranslateBlobToText( + const JsonParse *pParse, /* the complete parse of the JSON */ + u32 i, /* Start rendering at this index */ + JsonString *pOut /* Write JSON here */ +){ + u32 sz, n, j, iEnd; + + n = jsonbPayloadSize(pParse, i, &sz); + if( n==0 ){ + pOut->eErr |= JSTRING_MALFORMED; + return pParse->nBlob+1; + } + switch( pParse->aBlob[i] & 0x0f ){ + case JSONB_NULL: { + jsonAppendRawNZ(pOut, "null", 4); + return i+1; + } + case JSONB_TRUE: { + jsonAppendRawNZ(pOut, "true", 4); + return i+1; + } + case JSONB_FALSE: { + jsonAppendRawNZ(pOut, "false", 5); + return i+1; + } + case JSONB_INT: + case JSONB_FLOAT: { + if( sz==0 ) goto malformed_jsonb; + jsonAppendRaw(pOut, (const char*)&pParse->aBlob[i+n], sz); + break; + } + case JSONB_INT5: { /* Integer literal in hexadecimal notation */ + u32 k = 2; + sqlite3_uint64 u = 0; + const char *zIn = (const char*)&pParse->aBlob[i+n]; + int bOverflow = 0; + if( sz==0 ) goto malformed_jsonb; + if( zIn[0]=='-' ){ + jsonAppendChar(pOut, '-'); + k++; + }else if( zIn[0]=='+' ){ + k++; + } + for(; k<sz; k++){ + if( !sqlite3Isxdigit(zIn[k]) ){ + pOut->eErr |= JSTRING_MALFORMED; + break; + }else if( (u>>60)!=0 ){ + bOverflow = 1; + }else{ + u = u*16 + sqlite3HexToInt(zIn[k]); + } } + jsonPrintf(100,pOut,bOverflow?"9.0e999":"%llu", u); break; } - case JSON_OBJECT: { - for(j=1; j<=pNode->n; j += jsonNodeSize(pNode+j+1)+1){ - pParse->aUp[i+j] = i; - jsonParseFillInParentage(pParse, i+j+1, i); + case JSONB_FLOAT5: { /* Float literal missing digits beside "." */ + u32 k = 0; + const char *zIn = (const char*)&pParse->aBlob[i+n]; + if( sz==0 ) goto malformed_jsonb; + if( zIn[0]=='-' ){ + jsonAppendChar(pOut, '-'); + k++; + } + if( zIn[k]=='.' ){ + jsonAppendChar(pOut, '0'); + } + for(; k<sz; k++){ + jsonAppendChar(pOut, zIn[k]); + if( zIn[k]=='.' && (k+1==sz || !sqlite3Isdigit(zIn[k+1])) ){ + jsonAppendChar(pOut, '0'); + } } break; } + case JSONB_TEXT: + case JSONB_TEXTJ: { + jsonAppendChar(pOut, '"'); + jsonAppendRaw(pOut, (const char*)&pParse->aBlob[i+n], sz); + jsonAppendChar(pOut, '"'); + break; + } + case JSONB_TEXT5: { + const char *zIn; + u32 k; + u32 sz2 = sz; + zIn = (const char*)&pParse->aBlob[i+n]; + jsonAppendChar(pOut, '"'); + while( sz2>0 ){ + for(k=0; k<sz2 && zIn[k]!='\\' && zIn[k]!='"'; k++){} + if( k>0 ){ + jsonAppendRawNZ(pOut, zIn, k); + if( k>=sz2 ){ + break; + } + zIn += k; + sz2 -= k; + } + if( zIn[0]=='"' ){ + jsonAppendRawNZ(pOut, "\\\"", 2); + zIn++; + sz2--; + continue; + } + assert( zIn[0]=='\\' ); + assert( sz2>=1 ); + if( sz2<2 ){ + pOut->eErr |= JSTRING_MALFORMED; + break; + } + switch( (u8)zIn[1] ){ + case '\'': + jsonAppendChar(pOut, '\''); + break; + case 'v': + jsonAppendRawNZ(pOut, "\\u0009", 6); + break; + case 'x': + if( sz2<4 ){ + pOut->eErr |= JSTRING_MALFORMED; + sz2 = 2; + break; + } + jsonAppendRawNZ(pOut, "\\u00", 4); + jsonAppendRawNZ(pOut, &zIn[2], 2); + zIn += 2; + sz2 -= 2; + break; + case '0': + jsonAppendRawNZ(pOut, "\\u0000", 6); + break; + case '\r': + if( sz2>2 && zIn[2]=='\n' ){ + zIn++; + sz2--; + } + break; + case '\n': + break; + case 0xe2: + /* '\' followed by either U+2028 or U+2029 is ignored as + ** whitespace. Not that in UTF8, U+2028 is 0xe2 0x80 0x29. + ** U+2029 is the same except for the last byte */ + if( sz2<4 + || 0x80!=(u8)zIn[2] + || (0xa8!=(u8)zIn[3] && 0xa9!=(u8)zIn[3]) + ){ + pOut->eErr |= JSTRING_MALFORMED; + sz2 = 2; + break; + } + zIn += 2; + sz2 -= 2; + break; + default: + jsonAppendRawNZ(pOut, zIn, 2); + break; + } + assert( sz2>=2 ); + zIn += 2; + sz2 -= 2; + } + jsonAppendChar(pOut, '"'); + break; + } + case JSONB_TEXTRAW: { + jsonAppendString(pOut, (const char*)&pParse->aBlob[i+n], sz); + break; + } + case JSONB_ARRAY: { + jsonAppendChar(pOut, '['); + j = i+n; + iEnd = j+sz; + while( j<iEnd && pOut->eErr==0 ){ + j = jsonTranslateBlobToText(pParse, j, pOut); + jsonAppendChar(pOut, ','); + } + if( j>iEnd ) pOut->eErr |= JSTRING_MALFORMED; + if( sz>0 ) jsonStringTrimOneChar(pOut); + jsonAppendChar(pOut, ']'); + break; + } + case JSONB_OBJECT: { + int x = 0; + jsonAppendChar(pOut, '{'); + j = i+n; + iEnd = j+sz; + while( j<iEnd && pOut->eErr==0 ){ + j = jsonTranslateBlobToText(pParse, j, pOut); + jsonAppendChar(pOut, (x++ & 1) ? ',' : ':'); + } + if( (x & 1)!=0 || j>iEnd ) pOut->eErr |= JSTRING_MALFORMED; + if( sz>0 ) jsonStringTrimOneChar(pOut); + jsonAppendChar(pOut, '}'); + break; + } + default: { + malformed_jsonb: + pOut->eErr |= JSTRING_MALFORMED; break; } } + return i+n+sz; +} + +/* Return true if the input pJson +** +** For performance reasons, this routine does not do a detailed check of the +** input BLOB to ensure that it is well-formed. Hence, false positives are +** possible. False negatives should never occur, however. +*/ +static int jsonFuncArgMightBeBinary(sqlite3_value *pJson){ + u32 sz, n; + const u8 *aBlob; + int nBlob; + JsonParse s; + if( sqlite3_value_type(pJson)!=SQLITE_BLOB ) return 0; + aBlob = sqlite3_value_blob(pJson); + nBlob = sqlite3_value_bytes(pJson); + if( nBlob<1 ) return 0; + if( NEVER(aBlob==0) || (aBlob[0] & 0x0f)>JSONB_OBJECT ) return 0; + memset(&s, 0, sizeof(s)); + s.aBlob = (u8*)aBlob; + s.nBlob = nBlob; + n = jsonbPayloadSize(&s, 0, &sz); + if( n==0 ) return 0; + if( sz+n!=(u32)nBlob ) return 0; + if( (aBlob[0] & 0x0f)<=JSONB_FALSE && sz>0 ) return 0; + return sz+n==(u32)nBlob; } /* -** Compute the parentage of all nodes in a completed parse. +** Given that a JSONB_ARRAY object starts at offset i, return +** the number of entries in that array. */ -static int jsonParseFindParents(JsonParse *pParse){ - u32 *aUp; - assert( pParse->aUp==0 ); - aUp = pParse->aUp = sqlite3_malloc64( sizeof(u32)*pParse->nNode ); - if( aUp==0 ){ - pParse->oom = 1; - return SQLITE_NOMEM; +static u32 jsonbArrayCount(JsonParse *pParse, u32 iRoot){ + u32 n, sz, i, iEnd; + u32 k = 0; + n = jsonbPayloadSize(pParse, iRoot, &sz); + iEnd = iRoot+n+sz; + for(i=iRoot+n; n>0 && i<iEnd; i+=sz+n, k++){ + n = jsonbPayloadSize(pParse, i, &sz); } - jsonParseFillInParentage(pParse, 0, 0); - return SQLITE_OK; + return k; } /* -** Magic number used for the JSON parse cache in sqlite3_get_auxdata() +** Edit the payload size of the element at iRoot by the amount in +** pParse->delta. */ -#define JSON_CACHE_ID (-429938) /* First cache entry */ -#define JSON_CACHE_SZ 4 /* Max number of cache entries */ +static void jsonAfterEditSizeAdjust(JsonParse *pParse, u32 iRoot){ + u32 sz = 0; + u32 nBlob; + assert( pParse->delta!=0 ); + assert( pParse->nBlobAlloc >= pParse->nBlob ); + nBlob = pParse->nBlob; + pParse->nBlob = pParse->nBlobAlloc; + (void)jsonbPayloadSize(pParse, iRoot, &sz); + pParse->nBlob = nBlob; + sz += pParse->delta; + pParse->delta += jsonBlobChangePayloadSize(pParse, iRoot, sz); +} /* -** Obtain a complete parse of the JSON found in the first argument -** of the argv array. Use the sqlite3_get_auxdata() cache for this -** parse if it is available. If the cache is not available or if it -** is no longer valid, parse the JSON again and return the new parse, -** and also register the new parse so that it will be available for -** future sqlite3_get_auxdata() calls. +** Modify the JSONB blob at pParse->aBlob by removing nDel bytes of +** content beginning at iDel, and replacing them with nIns bytes of +** content given by aIns. +** +** nDel may be zero, in which case no bytes are removed. But iDel is +** still important as new bytes will be insert beginning at iDel. +** +** aIns may be zero, in which case space is created to hold nIns bytes +** beginning at iDel, but that space is uninitialized. +** +** Set pParse->oom if an OOM occurs. */ -static JsonParse *jsonParseCached( - sqlite3_context *pCtx, - sqlite3_value **argv, - sqlite3_context *pErrCtx +static void jsonBlobEdit( + JsonParse *pParse, /* The JSONB to be modified is in pParse->aBlob */ + u32 iDel, /* First byte to be removed */ + u32 nDel, /* Number of bytes to remove */ + const u8 *aIns, /* Content to insert */ + u32 nIns /* Bytes of content to insert */ ){ - const char *zJson = (const char*)sqlite3_value_text(argv[0]); - int nJson = sqlite3_value_bytes(argv[0]); - JsonParse *p; - JsonParse *pMatch = 0; - int iKey; - int iMinKey = 0; - u32 iMinHold = 0xffffffff; - u32 iMaxHold = 0; - if( zJson==0 ) return 0; - for(iKey=0; iKey<JSON_CACHE_SZ; iKey++){ - p = (JsonParse*)sqlite3_get_auxdata(pCtx, JSON_CACHE_ID+iKey); - if( p==0 ){ - iMinKey = iKey; - break; + i64 d = (i64)nIns - (i64)nDel; + if( d!=0 ){ + if( pParse->nBlob + d > pParse->nBlobAlloc ){ + jsonBlobExpand(pParse, pParse->nBlob+d); + if( pParse->oom ) return; } - if( pMatch==0 - && p->nJson==nJson - && memcmp(p->zJson,zJson,nJson)==0 - ){ - p->nErr = 0; - pMatch = p; - }else if( p->iHold<iMinHold ){ - iMinHold = p->iHold; - iMinKey = iKey; + memmove(&pParse->aBlob[iDel+nIns], + &pParse->aBlob[iDel+nDel], + pParse->nBlob - (iDel+nDel)); + pParse->nBlob += d; + pParse->delta += d; + } + if( nIns && aIns ) memcpy(&pParse->aBlob[iDel], aIns, nIns); +} + +/* +** Return the number of escaped newlines to be ignored. +** An escaped newline is a one of the following byte sequences: +** +** 0x5c 0x0a +** 0x5c 0x0d +** 0x5c 0x0d 0x0a +** 0x5c 0xe2 0x80 0xa8 +** 0x5c 0xe2 0x80 0xa9 +*/ +static u32 jsonBytesToBypass(const char *z, u32 n){ + u32 i = 0; + while( i+1<n ){ + if( z[i]!='\\' ) return i; + if( z[i+1]=='\n' ){ + i += 2; + continue; } - if( p->iHold>iMaxHold ){ - iMaxHold = p->iHold; + if( z[i+1]=='\r' ){ + if( i+2<n && z[i+2]=='\n' ){ + i += 3; + }else{ + i += 2; + } + continue; + } + if( 0xe2==(u8)z[i+1] + && i+3<n + && 0x80==(u8)z[i+2] + && (0xa8==(u8)z[i+3] || 0xa9==(u8)z[i+3]) + ){ + i += 4; + continue; } + break; } - if( pMatch ){ - pMatch->nErr = 0; - pMatch->iHold = iMaxHold+1; - return pMatch; + return i; +} + +/* +** Input z[0..n] defines JSON escape sequence including the leading '\\'. +** Decode that escape sequence into a single character. Write that +** character into *piOut. Return the number of bytes in the escape sequence. +** +** If there is a syntax error of some kind (for example too few characters +** after the '\\' to complete the encoding) then *piOut is set to +** JSON_INVALID_CHAR. +*/ +static u32 jsonUnescapeOneChar(const char *z, u32 n, u32 *piOut){ + assert( n>0 ); + assert( z[0]=='\\' ); + if( n<2 ){ + *piOut = JSON_INVALID_CHAR; + return n; } - p = sqlite3_malloc64( sizeof(*p) + nJson + 1 ); - if( p==0 ){ - sqlite3_result_error_nomem(pCtx); - return 0; + switch( (u8)z[1] ){ + case 'u': { + u32 v, vlo; + if( n<6 ){ + *piOut = JSON_INVALID_CHAR; + return n; + } + v = jsonHexToInt4(&z[2]); + if( (v & 0xfc00)==0xd800 + && n>=12 + && z[6]=='\\' + && z[7]=='u' + && ((vlo = jsonHexToInt4(&z[8]))&0xfc00)==0xdc00 + ){ + *piOut = ((v&0x3ff)<<10) + (vlo&0x3ff) + 0x10000; + return 12; + }else{ + *piOut = v; + return 6; + } + } + case 'b': { *piOut = '\b'; return 2; } + case 'f': { *piOut = '\f'; return 2; } + case 'n': { *piOut = '\n'; return 2; } + case 'r': { *piOut = '\r'; return 2; } + case 't': { *piOut = '\t'; return 2; } + case 'v': { *piOut = '\v'; return 2; } + case '0': { *piOut = 0; return 2; } + case '\'': + case '"': + case '/': + case '\\':{ *piOut = z[1]; return 2; } + case 'x': { + if( n<4 ){ + *piOut = JSON_INVALID_CHAR; + return n; + } + *piOut = (jsonHexToInt(z[2])<<4) | jsonHexToInt(z[3]); + return 4; + } + case 0xe2: + case '\r': + case '\n': { + u32 nSkip = jsonBytesToBypass(z, n); + if( nSkip==0 ){ + *piOut = JSON_INVALID_CHAR; + return n; + }else if( nSkip==n ){ + *piOut = 0; + return n; + }else if( z[nSkip]=='\\' ){ + return nSkip + jsonUnescapeOneChar(&z[nSkip], n-nSkip, piOut); + }else{ + int sz = sqlite3Utf8ReadLimited((u8*)&z[nSkip], n-nSkip, piOut); + return nSkip + sz; + } + } + default: { + *piOut = JSON_INVALID_CHAR; + return 2; + } } - memset(p, 0, sizeof(*p)); - p->zJson = (char*)&p[1]; - memcpy((char*)p->zJson, zJson, nJson+1); - if( jsonParse(p, pErrCtx, p->zJson) ){ - sqlite3_free(p); - return 0; +} + + +/* +** Compare two object labels. Return 1 if they are equal and +** 0 if they differ. +** +** In this version, we know that one or the other or both of the +** two comparands contains an escape sequence. +*/ +static SQLITE_NOINLINE int jsonLabelCompareEscaped( + const char *zLeft, /* The left label */ + u32 nLeft, /* Size of the left label in bytes */ + int rawLeft, /* True if zLeft contains no escapes */ + const char *zRight, /* The right label */ + u32 nRight, /* Size of the right label in bytes */ + int rawRight /* True if zRight is escape-free */ +){ + u32 cLeft, cRight; + assert( rawLeft==0 || rawRight==0 ); + while( 1 /*exit-by-return*/ ){ + if( nLeft==0 ){ + cLeft = 0; + }else if( rawLeft || zLeft[0]!='\\' ){ + cLeft = ((u8*)zLeft)[0]; + if( cLeft>=0xc0 ){ + int sz = sqlite3Utf8ReadLimited((u8*)zLeft, nLeft, &cLeft); + zLeft += sz; + nLeft -= sz; + }else{ + zLeft++; + nLeft--; + } + }else{ + u32 n = jsonUnescapeOneChar(zLeft, nLeft, &cLeft); + zLeft += n; + assert( n<=nLeft ); + nLeft -= n; + } + if( nRight==0 ){ + cRight = 0; + }else if( rawRight || zRight[0]!='\\' ){ + cRight = ((u8*)zRight)[0]; + if( cRight>=0xc0 ){ + int sz = sqlite3Utf8ReadLimited((u8*)zRight, nRight, &cRight); + zRight += sz; + nRight -= sz; + }else{ + zRight++; + nRight--; + } + }else{ + u32 n = jsonUnescapeOneChar(zRight, nRight, &cRight); + zRight += n; + assert( n<=nRight ); + nRight -= n; + } + if( cLeft!=cRight ) return 0; + if( cLeft==0 ) return 1; } - p->nJson = nJson; - p->iHold = iMaxHold+1; - sqlite3_set_auxdata(pCtx, JSON_CACHE_ID+iMinKey, p, - (void(*)(void*))jsonParseFree); - return (JsonParse*)sqlite3_get_auxdata(pCtx, JSON_CACHE_ID+iMinKey); } /* -** Compare the OBJECT label at pNode against zKey,nKey. Return true on -** a match. +** Compare two object labels. Return 1 if they are equal and +** 0 if they differ. Return -1 if an OOM occurs. */ -static int jsonLabelCompare(JsonNode *pNode, const char *zKey, u32 nKey){ - assert( pNode->eU==1 ); - if( pNode->jnFlags & JNODE_RAW ){ - if( pNode->n!=nKey ) return 0; - return strncmp(pNode->u.zJContent, zKey, nKey)==0; +static int jsonLabelCompare( + const char *zLeft, /* The left label */ + u32 nLeft, /* Size of the left label in bytes */ + int rawLeft, /* True if zLeft contains no escapes */ + const char *zRight, /* The right label */ + u32 nRight, /* Size of the right label in bytes */ + int rawRight /* True if zRight is escape-free */ +){ + if( rawLeft && rawRight ){ + /* Simpliest case: Neither label contains escapes. A simple + ** memcmp() is sufficient. */ + if( nLeft!=nRight ) return 0; + return memcmp(zLeft, zRight, nLeft)==0; }else{ - if( pNode->n!=nKey+2 ) return 0; - return strncmp(pNode->u.zJContent+1, zKey, nKey)==0; + return jsonLabelCompareEscaped(zLeft, nLeft, rawLeft, + zRight, nRight, rawRight); } } -/* forward declaration */ -static JsonNode *jsonLookupAppend(JsonParse*,const char*,int*,const char**); +/* +** Error returns from jsonLookupStep() +*/ +#define JSON_LOOKUP_ERROR 0xffffffff +#define JSON_LOOKUP_NOTFOUND 0xfffffffe +#define JSON_LOOKUP_PATHERROR 0xfffffffd +#define JSON_LOOKUP_ISERROR(x) ((x)>=JSON_LOOKUP_PATHERROR) + +/* Forward declaration */ +static u32 jsonLookupStep(JsonParse*,u32,const char*,u32); + + +/* This helper routine for jsonLookupStep() populates pIns with +** binary data that is to be inserted into pParse. +** +** In the common case, pIns just points to pParse->aIns and pParse->nIns. +** But if the zPath of the original edit operation includes path elements +** that go deeper, additional substructure must be created. +** +** For example: +** +** json_insert('{}', '$.a.b.c', 123); +** +** The search stops at '$.a' But additional substructure must be +** created for the ".b.c" part of the patch so that the final result +** is: {"a":{"b":{"c"::123}}}. This routine populates pIns with +** the binary equivalent of {"b":{"c":123}} so that it can be inserted. +** +** The caller is responsible for resetting pIns when it has finished +** using the substructure. +*/ +static u32 jsonCreateEditSubstructure( + JsonParse *pParse, /* The original JSONB that is being edited */ + JsonParse *pIns, /* Populate this with the blob data to insert */ + const char *zTail /* Tail of the path that determins substructure */ +){ + static const u8 emptyObject[] = { JSONB_ARRAY, JSONB_OBJECT }; + int rc; + memset(pIns, 0, sizeof(*pIns)); + pIns->db = pParse->db; + if( zTail[0]==0 ){ + /* No substructure. Just insert what is given in pParse. */ + pIns->aBlob = pParse->aIns; + pIns->nBlob = pParse->nIns; + rc = 0; + }else{ + /* Construct the binary substructure */ + pIns->nBlob = 1; + pIns->aBlob = (u8*)&emptyObject[zTail[0]=='.']; + pIns->eEdit = pParse->eEdit; + pIns->nIns = pParse->nIns; + pIns->aIns = pParse->aIns; + rc = jsonLookupStep(pIns, 0, zTail, 0); + pParse->oom |= pIns->oom; + } + return rc; /* Error code only */ +} /* -** Search along zPath to find the node specified. Return a pointer -** to that node, or NULL if zPath is malformed or if there is no such -** node. +** Search along zPath to find the Json element specified. Return an +** index into pParse->aBlob[] for the start of that element's value. +** +** If the value found by this routine is the value half of label/value pair +** within an object, then set pPath->iLabel to the start of the corresponding +** label, before returning. +** +** Return one of the JSON_LOOKUP error codes if problems are seen. ** -** If pApnd!=0, then try to append new nodes to complete zPath if it is -** possible to do so and if no existing node corresponds to zPath. If -** new nodes are appended *pApnd is set to 1. +** This routine will also modify the blob. If pParse->eEdit is one of +** JEDIT_DEL, JEDIT_REPL, JEDIT_INS, or JEDIT_SET, then changes might be +** made to the selected value. If an edit is performed, then the return +** value does not necessarily point to the select element. If an edit +** is performed, the return value is only useful for detecting error +** conditions. */ -static JsonNode *jsonLookupStep( +static u32 jsonLookupStep( JsonParse *pParse, /* The JSON to search */ - u32 iRoot, /* Begin the search at this node */ + u32 iRoot, /* Begin the search at this element of aBlob[] */ const char *zPath, /* The path to search */ - int *pApnd, /* Append nodes to complete path if not NULL */ - const char **pzErr /* Make *pzErr point to any syntax error in zPath */ + u32 iLabel /* Label if iRoot is a value of in an object */ ){ - u32 i, j, nKey; + u32 i, j, k, nKey, sz, n, iEnd, rc; const char *zKey; - JsonNode *pRoot = &pParse->aNode[iRoot]; - if( zPath[0]==0 ) return pRoot; - if( pRoot->jnFlags & JNODE_REPLACE ) return 0; + u8 x; + + if( zPath[0]==0 ){ + if( pParse->eEdit && jsonBlobMakeEditable(pParse, pParse->nIns) ){ + n = jsonbPayloadSize(pParse, iRoot, &sz); + sz += n; + if( pParse->eEdit==JEDIT_DEL ){ + if( iLabel>0 ){ + sz += iRoot - iLabel; + iRoot = iLabel; + } + jsonBlobEdit(pParse, iRoot, sz, 0, 0); + }else if( pParse->eEdit==JEDIT_INS ){ + /* Already exists, so json_insert() is a no-op */ + }else{ + /* json_set() or json_replace() */ + jsonBlobEdit(pParse, iRoot, sz, pParse->aIns, pParse->nIns); + } + } + pParse->iLabel = iLabel; + return iRoot; + } if( zPath[0]=='.' ){ - if( pRoot->eType!=JSON_OBJECT ) return 0; + int rawKey = 1; + x = pParse->aBlob[iRoot]; zPath++; if( zPath[0]=='"' ){ zKey = zPath + 1; @@ -194339,303 +205891,849 @@ static JsonNode *jsonLookupStep( if( zPath[i] ){ i++; }else{ - *pzErr = zPath; - return 0; + return JSON_LOOKUP_PATHERROR; } testcase( nKey==0 ); + rawKey = memchr(zKey, '\\', nKey)==0; }else{ zKey = zPath; for(i=0; zPath[i] && zPath[i]!='.' && zPath[i]!='['; i++){} nKey = i; if( nKey==0 ){ - *pzErr = zPath; - return 0; - } - } - j = 1; - for(;;){ - while( j<=pRoot->n ){ - if( jsonLabelCompare(pRoot+j, zKey, nKey) ){ - return jsonLookupStep(pParse, iRoot+j+1, &zPath[i], pApnd, pzErr); - } - j++; - j += jsonNodeSize(&pRoot[j]); + return JSON_LOOKUP_PATHERROR; + } + } + if( (x & 0x0f)!=JSONB_OBJECT ) return JSON_LOOKUP_NOTFOUND; + n = jsonbPayloadSize(pParse, iRoot, &sz); + j = iRoot + n; /* j is the index of a label */ + iEnd = j+sz; + while( j<iEnd ){ + int rawLabel; + const char *zLabel; + x = pParse->aBlob[j] & 0x0f; + if( x<JSONB_TEXT || x>JSONB_TEXTRAW ) return JSON_LOOKUP_ERROR; + n = jsonbPayloadSize(pParse, j, &sz); + if( n==0 ) return JSON_LOOKUP_ERROR; + k = j+n; /* k is the index of the label text */ + if( k+sz>=iEnd ) return JSON_LOOKUP_ERROR; + zLabel = (const char*)&pParse->aBlob[k]; + rawLabel = x==JSONB_TEXT || x==JSONB_TEXTRAW; + if( jsonLabelCompare(zKey, nKey, rawKey, zLabel, sz, rawLabel) ){ + u32 v = k+sz; /* v is the index of the value */ + if( ((pParse->aBlob[v])&0x0f)>JSONB_OBJECT ) return JSON_LOOKUP_ERROR; + n = jsonbPayloadSize(pParse, v, &sz); + if( n==0 || v+n+sz>iEnd ) return JSON_LOOKUP_ERROR; + assert( j>0 ); + rc = jsonLookupStep(pParse, v, &zPath[i], j); + if( pParse->delta ) jsonAfterEditSizeAdjust(pParse, iRoot); + return rc; } - if( (pRoot->jnFlags & JNODE_APPEND)==0 ) break; - assert( pRoot->eU==2 ); - iRoot += pRoot->u.iAppend; - pRoot = &pParse->aNode[iRoot]; - j = 1; - } - if( pApnd ){ - u32 iStart, iLabel; - JsonNode *pNode; - iStart = jsonParseAddNode(pParse, JSON_OBJECT, 2, 0); - iLabel = jsonParseAddNode(pParse, JSON_STRING, nKey, zKey); - zPath += i; - pNode = jsonLookupAppend(pParse, zPath, pApnd, pzErr); - if( pParse->oom ) return 0; - if( pNode ){ - pRoot = &pParse->aNode[iRoot]; - assert( pRoot->eU==0 ); - pRoot->u.iAppend = iStart - iRoot; - pRoot->jnFlags |= JNODE_APPEND; - VVA( pRoot->eU = 2 ); - pParse->aNode[iLabel].jnFlags |= JNODE_RAW; - } - return pNode; + j = k+sz; + if( ((pParse->aBlob[j])&0x0f)>JSONB_OBJECT ) return JSON_LOOKUP_ERROR; + n = jsonbPayloadSize(pParse, j, &sz); + if( n==0 ) return JSON_LOOKUP_ERROR; + j += n+sz; + } + if( j>iEnd ) return JSON_LOOKUP_ERROR; + if( pParse->eEdit>=JEDIT_INS ){ + u32 nIns; /* Total bytes to insert (label+value) */ + JsonParse v; /* BLOB encoding of the value to be inserted */ + JsonParse ix; /* Header of the label to be inserted */ + testcase( pParse->eEdit==JEDIT_INS ); + testcase( pParse->eEdit==JEDIT_SET ); + memset(&ix, 0, sizeof(ix)); + ix.db = pParse->db; + jsonBlobAppendNode(&ix, rawKey?JSONB_TEXTRAW:JSONB_TEXT5, nKey, 0); + pParse->oom |= ix.oom; + rc = jsonCreateEditSubstructure(pParse, &v, &zPath[i]); + if( !JSON_LOOKUP_ISERROR(rc) + && jsonBlobMakeEditable(pParse, ix.nBlob+nKey+v.nBlob) + ){ + assert( !pParse->oom ); + nIns = ix.nBlob + nKey + v.nBlob; + jsonBlobEdit(pParse, j, 0, 0, nIns); + if( !pParse->oom ){ + assert( pParse->aBlob!=0 ); /* Because pParse->oom!=0 */ + assert( ix.aBlob!=0 ); /* Because pPasre->oom!=0 */ + memcpy(&pParse->aBlob[j], ix.aBlob, ix.nBlob); + k = j + ix.nBlob; + memcpy(&pParse->aBlob[k], zKey, nKey); + k += nKey; + memcpy(&pParse->aBlob[k], v.aBlob, v.nBlob); + if( ALWAYS(pParse->delta) ) jsonAfterEditSizeAdjust(pParse, iRoot); + } + } + jsonParseReset(&v); + jsonParseReset(&ix); + return rc; } }else if( zPath[0]=='[' ){ - i = 0; - j = 1; - while( sqlite3Isdigit(zPath[j]) ){ - i = i*10 + zPath[j] - '0'; - j++; + x = pParse->aBlob[iRoot] & 0x0f; + if( x!=JSONB_ARRAY ) return JSON_LOOKUP_NOTFOUND; + n = jsonbPayloadSize(pParse, iRoot, &sz); + k = 0; + i = 1; + while( sqlite3Isdigit(zPath[i]) ){ + k = k*10 + zPath[i] - '0'; + i++; } - if( j<2 || zPath[j]!=']' ){ + if( i<2 || zPath[i]!=']' ){ if( zPath[1]=='#' ){ - JsonNode *pBase = pRoot; - int iBase = iRoot; - if( pRoot->eType!=JSON_ARRAY ) return 0; - for(;;){ - while( j<=pBase->n ){ - if( (pBase[j].jnFlags & JNODE_REMOVE)==0 ) i++; - j += jsonNodeSize(&pBase[j]); - } - if( (pBase->jnFlags & JNODE_APPEND)==0 ) break; - assert( pBase->eU==2 ); - iBase += pBase->u.iAppend; - pBase = &pParse->aNode[iBase]; - j = 1; - } - j = 2; + k = jsonbArrayCount(pParse, iRoot); + i = 2; if( zPath[2]=='-' && sqlite3Isdigit(zPath[3]) ){ - unsigned int x = 0; - j = 3; + unsigned int nn = 0; + i = 3; do{ - x = x*10 + zPath[j] - '0'; - j++; - }while( sqlite3Isdigit(zPath[j]) ); - if( x>i ) return 0; - i -= x; + nn = nn*10 + zPath[i] - '0'; + i++; + }while( sqlite3Isdigit(zPath[i]) ); + if( nn>k ) return JSON_LOOKUP_NOTFOUND; + k -= nn; } - if( zPath[j]!=']' ){ - *pzErr = zPath; - return 0; + if( zPath[i]!=']' ){ + return JSON_LOOKUP_PATHERROR; } }else{ - *pzErr = zPath; - return 0; + return JSON_LOOKUP_PATHERROR; } } - if( pRoot->eType!=JSON_ARRAY ) return 0; - zPath += j + 1; - j = 1; - for(;;){ - while( j<=pRoot->n && (i>0 || (pRoot[j].jnFlags & JNODE_REMOVE)!=0) ){ - if( (pRoot[j].jnFlags & JNODE_REMOVE)==0 ) i--; - j += jsonNodeSize(&pRoot[j]); - } - if( (pRoot->jnFlags & JNODE_APPEND)==0 ) break; - assert( pRoot->eU==2 ); - iRoot += pRoot->u.iAppend; - pRoot = &pParse->aNode[iRoot]; - j = 1; - } - if( j<=pRoot->n ){ - return jsonLookupStep(pParse, iRoot+j, zPath, pApnd, pzErr); - } - if( i==0 && pApnd ){ - u32 iStart; - JsonNode *pNode; - iStart = jsonParseAddNode(pParse, JSON_ARRAY, 1, 0); - pNode = jsonLookupAppend(pParse, zPath, pApnd, pzErr); - if( pParse->oom ) return 0; - if( pNode ){ - pRoot = &pParse->aNode[iRoot]; - assert( pRoot->eU==0 ); - pRoot->u.iAppend = iStart - iRoot; - pRoot->jnFlags |= JNODE_APPEND; - VVA( pRoot->eU = 2 ); + j = iRoot+n; + iEnd = j+sz; + while( j<iEnd ){ + if( k==0 ){ + rc = jsonLookupStep(pParse, j, &zPath[i+1], 0); + if( pParse->delta ) jsonAfterEditSizeAdjust(pParse, iRoot); + return rc; + } + k--; + n = jsonbPayloadSize(pParse, j, &sz); + if( n==0 ) return JSON_LOOKUP_ERROR; + j += n+sz; + } + if( j>iEnd ) return JSON_LOOKUP_ERROR; + if( k>0 ) return JSON_LOOKUP_NOTFOUND; + if( pParse->eEdit>=JEDIT_INS ){ + JsonParse v; + testcase( pParse->eEdit==JEDIT_INS ); + testcase( pParse->eEdit==JEDIT_SET ); + rc = jsonCreateEditSubstructure(pParse, &v, &zPath[i+1]); + if( !JSON_LOOKUP_ISERROR(rc) + && jsonBlobMakeEditable(pParse, v.nBlob) + ){ + assert( !pParse->oom ); + jsonBlobEdit(pParse, j, 0, v.aBlob, v.nBlob); } - return pNode; + jsonParseReset(&v); + if( pParse->delta ) jsonAfterEditSizeAdjust(pParse, iRoot); + return rc; } }else{ - *pzErr = zPath; + return JSON_LOOKUP_PATHERROR; } - return 0; + return JSON_LOOKUP_NOTFOUND; } /* -** Append content to pParse that will complete zPath. Return a pointer -** to the inserted node, or return NULL if the append fails. +** Convert a JSON BLOB into text and make that text the return value +** of an SQL function. */ -static JsonNode *jsonLookupAppend( - JsonParse *pParse, /* Append content to the JSON parse */ - const char *zPath, /* Description of content to append */ - int *pApnd, /* Set this flag to 1 */ - const char **pzErr /* Make this point to any syntax error */ +static void jsonReturnTextJsonFromBlob( + sqlite3_context *ctx, + const u8 *aBlob, + u32 nBlob ){ - *pApnd = 1; - if( zPath[0]==0 ){ - jsonParseAddNode(pParse, JSON_NULL, 0, 0); - return pParse->oom ? 0 : &pParse->aNode[pParse->nNode-1]; - } - if( zPath[0]=='.' ){ - jsonParseAddNode(pParse, JSON_OBJECT, 0, 0); - }else if( strncmp(zPath,"[0]",3)==0 ){ - jsonParseAddNode(pParse, JSON_ARRAY, 0, 0); - }else{ - return 0; - } - if( pParse->oom ) return 0; - return jsonLookupStep(pParse, pParse->nNode-1, zPath, pApnd, pzErr); + JsonParse x; + JsonString s; + + if( NEVER(aBlob==0) ) return; + memset(&x, 0, sizeof(x)); + x.aBlob = (u8*)aBlob; + x.nBlob = nBlob; + jsonStringInit(&s, ctx); + jsonTranslateBlobToText(&x, 0, &s); + jsonReturnString(&s, 0, 0); } + /* -** Return the text of a syntax error message on a JSON path. Space is -** obtained from sqlite3_malloc(). +** Return the value of the BLOB node at index i. +** +** If the value is a primitive, return it as an SQL value. +** If the value is an array or object, return it as either +** JSON text or the BLOB encoding, depending on the JSON_B flag +** on the userdata. */ -static char *jsonPathSyntaxError(const char *zErr){ - return sqlite3_mprintf("JSON path error near '%q'", zErr); +static void jsonReturnFromBlob( + JsonParse *pParse, /* Complete JSON parse tree */ + u32 i, /* Index of the node */ + sqlite3_context *pCtx, /* Return value for this function */ + int textOnly /* return text JSON. Disregard user-data */ +){ + u32 n, sz; + int rc; + sqlite3 *db = sqlite3_context_db_handle(pCtx); + + n = jsonbPayloadSize(pParse, i, &sz); + if( n==0 ){ + sqlite3_result_error(pCtx, "malformed JSON", -1); + return; + } + switch( pParse->aBlob[i] & 0x0f ){ + case JSONB_NULL: { + if( sz ) goto returnfromblob_malformed; + sqlite3_result_null(pCtx); + break; + } + case JSONB_TRUE: { + if( sz ) goto returnfromblob_malformed; + sqlite3_result_int(pCtx, 1); + break; + } + case JSONB_FALSE: { + if( sz ) goto returnfromblob_malformed; + sqlite3_result_int(pCtx, 0); + break; + } + case JSONB_INT5: + case JSONB_INT: { + sqlite3_int64 iRes = 0; + char *z; + int bNeg = 0; + char x; + if( sz==0 ) goto returnfromblob_malformed; + x = (char)pParse->aBlob[i+n]; + if( x=='-' ){ + if( sz<2 ) goto returnfromblob_malformed; + n++; + sz--; + bNeg = 1; + } + z = sqlite3DbStrNDup(db, (const char*)&pParse->aBlob[i+n], (int)sz); + if( z==0 ) goto returnfromblob_oom; + rc = sqlite3DecOrHexToI64(z, &iRes); + sqlite3DbFree(db, z); + if( rc==0 ){ + sqlite3_result_int64(pCtx, bNeg ? -iRes : iRes); + }else if( rc==3 && bNeg ){ + sqlite3_result_int64(pCtx, SMALLEST_INT64); + }else if( rc==1 ){ + goto returnfromblob_malformed; + }else{ + if( bNeg ){ n--; sz++; } + goto to_double; + } + break; + } + case JSONB_FLOAT5: + case JSONB_FLOAT: { + double r; + char *z; + if( sz==0 ) goto returnfromblob_malformed; + to_double: + z = sqlite3DbStrNDup(db, (const char*)&pParse->aBlob[i+n], (int)sz); + if( z==0 ) goto returnfromblob_oom; + rc = sqlite3AtoF(z, &r, sqlite3Strlen30(z), SQLITE_UTF8); + sqlite3DbFree(db, z); + if( rc<=0 ) goto returnfromblob_malformed; + sqlite3_result_double(pCtx, r); + break; + } + case JSONB_TEXTRAW: + case JSONB_TEXT: { + sqlite3_result_text(pCtx, (char*)&pParse->aBlob[i+n], sz, + SQLITE_TRANSIENT); + break; + } + case JSONB_TEXT5: + case JSONB_TEXTJ: { + /* Translate JSON formatted string into raw text */ + u32 iIn, iOut; + const char *z; + char *zOut; + u32 nOut = sz; + z = (const char*)&pParse->aBlob[i+n]; + zOut = sqlite3DbMallocRaw(db, nOut+1); + if( zOut==0 ) goto returnfromblob_oom; + for(iIn=iOut=0; iIn<sz; iIn++){ + char c = z[iIn]; + if( c=='\\' ){ + u32 v; + u32 szEscape = jsonUnescapeOneChar(&z[iIn], sz-iIn, &v); + if( v<=0x7f ){ + zOut[iOut++] = (char)v; + }else if( v<=0x7ff ){ + assert( szEscape>=2 ); + zOut[iOut++] = (char)(0xc0 | (v>>6)); + zOut[iOut++] = 0x80 | (v&0x3f); + }else if( v<0x10000 ){ + assert( szEscape>=3 ); + zOut[iOut++] = 0xe0 | (v>>12); + zOut[iOut++] = 0x80 | ((v>>6)&0x3f); + zOut[iOut++] = 0x80 | (v&0x3f); + }else if( v==JSON_INVALID_CHAR ){ + /* Silently ignore illegal unicode */ + }else{ + assert( szEscape>=4 ); + zOut[iOut++] = 0xf0 | (v>>18); + zOut[iOut++] = 0x80 | ((v>>12)&0x3f); + zOut[iOut++] = 0x80 | ((v>>6)&0x3f); + zOut[iOut++] = 0x80 | (v&0x3f); + } + iIn += szEscape - 1; + }else{ + zOut[iOut++] = c; + } + } /* end for() */ + assert( iOut<=nOut ); + zOut[iOut] = 0; + sqlite3_result_text(pCtx, zOut, iOut, SQLITE_DYNAMIC); + break; + } + case JSONB_ARRAY: + case JSONB_OBJECT: { + int flags = textOnly ? 0 : SQLITE_PTR_TO_INT(sqlite3_user_data(pCtx)); + if( flags & JSON_BLOB ){ + sqlite3_result_blob(pCtx, &pParse->aBlob[i], sz+n, SQLITE_TRANSIENT); + }else{ + jsonReturnTextJsonFromBlob(pCtx, &pParse->aBlob[i], sz+n); + } + break; + } + default: { + goto returnfromblob_malformed; + } + } + return; + +returnfromblob_oom: + sqlite3_result_error_nomem(pCtx); + return; + +returnfromblob_malformed: + sqlite3_result_error(pCtx, "malformed JSON", -1); + return; } /* -** Do a node lookup using zPath. Return a pointer to the node on success. -** Return NULL if not found or if there is an error. +** pArg is a function argument that might be an SQL value or a JSON +** value. Figure out what it is and encode it as a JSONB blob. +** Return the results in pParse. ** -** On an error, write an error message into pCtx and increment the -** pParse->nErr counter. +** pParse is uninitialized upon entry. This routine will handle the +** initialization of pParse. The result will be contained in +** pParse->aBlob and pParse->nBlob. pParse->aBlob might be dynamically +** allocated (if pParse->nBlobAlloc is greater than zero) in which case +** the caller is responsible for freeing the space allocated to pParse->aBlob +** when it has finished with it. Or pParse->aBlob might be a static string +** or a value obtained from sqlite3_value_blob(pArg). ** -** If pApnd!=NULL then try to append missing nodes and set *pApnd = 1 if -** nodes are appended. +** If the argument is a BLOB that is clearly not a JSONB, then this +** function might set an error message in ctx and return non-zero. +** It might also set an error message and return non-zero on an OOM error. */ -static JsonNode *jsonLookup( - JsonParse *pParse, /* The JSON to search */ - const char *zPath, /* The path to search */ - int *pApnd, /* Append nodes to complete path if not NULL */ - sqlite3_context *pCtx /* Report errors here, if not NULL */ -){ - const char *zErr = 0; - JsonNode *pNode = 0; - char *zMsg; - - if( zPath==0 ) return 0; - if( zPath[0]!='$' ){ - zErr = zPath; - goto lookup_err; +static int jsonFunctionArgToBlob( + sqlite3_context *ctx, + sqlite3_value *pArg, + JsonParse *pParse +){ + int eType = sqlite3_value_type(pArg); + static u8 aNull[] = { 0x00 }; + memset(pParse, 0, sizeof(pParse[0])); + pParse->db = sqlite3_context_db_handle(ctx); + switch( eType ){ + default: { + pParse->aBlob = aNull; + pParse->nBlob = 1; + return 0; + } + case SQLITE_BLOB: { + if( jsonFuncArgMightBeBinary(pArg) ){ + pParse->aBlob = (u8*)sqlite3_value_blob(pArg); + pParse->nBlob = sqlite3_value_bytes(pArg); + }else{ + sqlite3_result_error(ctx, "JSON cannot hold BLOB values", -1); + return 1; + } + break; + } + case SQLITE_TEXT: { + const char *zJson = (const char*)sqlite3_value_text(pArg); + int nJson = sqlite3_value_bytes(pArg); + if( zJson==0 ) return 1; + if( sqlite3_value_subtype(pArg)==JSON_SUBTYPE ){ + pParse->zJson = (char*)zJson; + pParse->nJson = nJson; + if( jsonConvertTextToBlob(pParse, ctx) ){ + sqlite3_result_error(ctx, "malformed JSON", -1); + sqlite3DbFree(pParse->db, pParse->aBlob); + memset(pParse, 0, sizeof(pParse[0])); + return 1; + } + }else{ + jsonBlobAppendNode(pParse, JSONB_TEXTRAW, nJson, zJson); + } + break; + } + case SQLITE_FLOAT: { + double r = sqlite3_value_double(pArg); + if( NEVER(sqlite3IsNaN(r)) ){ + jsonBlobAppendNode(pParse, JSONB_NULL, 0, 0); + }else{ + int n = sqlite3_value_bytes(pArg); + const char *z = (const char*)sqlite3_value_text(pArg); + if( z==0 ) return 1; + if( z[0]=='I' ){ + jsonBlobAppendNode(pParse, JSONB_FLOAT, 5, "9e999"); + }else if( z[0]=='-' && z[1]=='I' ){ + jsonBlobAppendNode(pParse, JSONB_FLOAT, 6, "-9e999"); + }else{ + jsonBlobAppendNode(pParse, JSONB_FLOAT, n, z); + } + } + break; + } + case SQLITE_INTEGER: { + int n = sqlite3_value_bytes(pArg); + const char *z = (const char*)sqlite3_value_text(pArg); + if( z==0 ) return 1; + jsonBlobAppendNode(pParse, JSONB_INT, n, z); + break; + } + } + if( pParse->oom ){ + sqlite3_result_error_nomem(ctx); + return 1; + }else{ + return 0; } - zPath++; - pNode = jsonLookupStep(pParse, 0, zPath, pApnd, &zErr); - if( zErr==0 ) return pNode; +} -lookup_err: - pParse->nErr++; - assert( zErr!=0 && pCtx!=0 ); - zMsg = jsonPathSyntaxError(zErr); +/* +** Generate a bad path error. +** +** If ctx is not NULL then push the error message into ctx and return NULL. +** If ctx is NULL, then return the text of the error message. +*/ +static char *jsonBadPathError( + sqlite3_context *ctx, /* The function call containing the error */ + const char *zPath /* The path with the problem */ +){ + char *zMsg = sqlite3_mprintf("bad JSON path: %Q", zPath); + if( ctx==0 ) return zMsg; if( zMsg ){ - sqlite3_result_error(pCtx, zMsg, -1); + sqlite3_result_error(ctx, zMsg, -1); sqlite3_free(zMsg); }else{ - sqlite3_result_error_nomem(pCtx); + sqlite3_result_error_nomem(ctx); } return 0; } +/* argv[0] is a BLOB that seems likely to be a JSONB. Subsequent +** arguments come in parse where each pair contains a JSON path and +** content to insert or set at that patch. Do the updates +** and return the result. +** +** The specific operation is determined by eEdit, which can be one +** of JEDIT_INS, JEDIT_REPL, or JEDIT_SET. +*/ +static void jsonInsertIntoBlob( + sqlite3_context *ctx, + int argc, + sqlite3_value **argv, + int eEdit /* JEDIT_INS, JEDIT_REPL, or JEDIT_SET */ +){ + int i; + u32 rc = 0; + const char *zPath = 0; + int flgs; + JsonParse *p; + JsonParse ax; + + assert( (argc&1)==1 ); + flgs = argc==1 ? 0 : JSON_EDITABLE; + p = jsonParseFuncArg(ctx, argv[0], flgs); + if( p==0 ) return; + for(i=1; i<argc-1; i+=2){ + if( sqlite3_value_type(argv[i])==SQLITE_NULL ) continue; + zPath = (const char*)sqlite3_value_text(argv[i]); + if( zPath==0 ){ + sqlite3_result_error_nomem(ctx); + jsonParseFree(p); + return; + } + if( zPath[0]!='$' ) goto jsonInsertIntoBlob_patherror; + if( jsonFunctionArgToBlob(ctx, argv[i+1], &ax) ){ + jsonParseReset(&ax); + jsonParseFree(p); + return; + } + if( zPath[1]==0 ){ + if( eEdit==JEDIT_REPL || eEdit==JEDIT_SET ){ + jsonBlobEdit(p, 0, p->nBlob, ax.aBlob, ax.nBlob); + } + rc = 0; + }else{ + p->eEdit = eEdit; + p->nIns = ax.nBlob; + p->aIns = ax.aBlob; + p->delta = 0; + rc = jsonLookupStep(p, 0, zPath+1, 0); + } + jsonParseReset(&ax); + if( rc==JSON_LOOKUP_NOTFOUND ) continue; + if( JSON_LOOKUP_ISERROR(rc) ) goto jsonInsertIntoBlob_patherror; + } + jsonReturnParse(ctx, p); + jsonParseFree(p); + return; + +jsonInsertIntoBlob_patherror: + jsonParseFree(p); + if( rc==JSON_LOOKUP_ERROR ){ + sqlite3_result_error(ctx, "malformed JSON", -1); + }else{ + jsonBadPathError(ctx, zPath); + } + return; +} /* -** Report the wrong number of arguments for json_insert(), json_replace() -** or json_set(). +** If pArg is a blob that seems like a JSONB blob, then initialize +** p to point to that JSONB and return TRUE. If pArg does not seem like +** a JSONB blob, then return FALSE; +** +** This routine is only called if it is already known that pArg is a +** blob. The only open question is whether or not the blob appears +** to be a JSONB blob. */ -static void jsonWrongNumArgs( - sqlite3_context *pCtx, - const char *zFuncName -){ - char *zMsg = sqlite3_mprintf("json_%s() needs an odd number of arguments", - zFuncName); - sqlite3_result_error(pCtx, zMsg, -1); - sqlite3_free(zMsg); +static int jsonArgIsJsonb(sqlite3_value *pArg, JsonParse *p){ + u32 n, sz = 0; + p->aBlob = (u8*)sqlite3_value_blob(pArg); + p->nBlob = (u32)sqlite3_value_bytes(pArg); + if( p->nBlob==0 ){ + p->aBlob = 0; + return 0; + } + if( NEVER(p->aBlob==0) ){ + return 0; + } + if( (p->aBlob[0] & 0x0f)<=JSONB_OBJECT + && (n = jsonbPayloadSize(p, 0, &sz))>0 + && sz+n==p->nBlob + && ((p->aBlob[0] & 0x0f)>JSONB_FALSE || sz==0) + ){ + return 1; + } + p->aBlob = 0; + p->nBlob = 0; + return 0; } /* -** Mark all NULL entries in the Object passed in as JNODE_REMOVE. +** Generate a JsonParse object, containing valid JSONB in aBlob and nBlob, +** from the SQL function argument pArg. Return a pointer to the new +** JsonParse object. +** +** Ownership of the new JsonParse object is passed to the caller. The +** caller should invoke jsonParseFree() on the return value when it +** has finished using it. +** +** If any errors are detected, an appropriate error messages is set +** using sqlite3_result_error() or the equivalent and this routine +** returns NULL. This routine also returns NULL if the pArg argument +** is an SQL NULL value, but no error message is set in that case. This +** is so that SQL functions that are given NULL arguments will return +** a NULL value. */ -static void jsonRemoveAllNulls(JsonNode *pNode){ - int i, n; - assert( pNode->eType==JSON_OBJECT ); - n = pNode->n; - for(i=2; i<=n; i += jsonNodeSize(&pNode[i])+1){ - switch( pNode[i].eType ){ - case JSON_NULL: - pNode[i].jnFlags |= JNODE_REMOVE; - break; - case JSON_OBJECT: - jsonRemoveAllNulls(&pNode[i]); - break; +static JsonParse *jsonParseFuncArg( + sqlite3_context *ctx, + sqlite3_value *pArg, + u32 flgs +){ + int eType; /* Datatype of pArg */ + JsonParse *p = 0; /* Value to be returned */ + JsonParse *pFromCache = 0; /* Value taken from cache */ + sqlite3 *db; /* The database connection */ + + assert( ctx!=0 ); + eType = sqlite3_value_type(pArg); + if( eType==SQLITE_NULL ){ + return 0; + } + pFromCache = jsonCacheSearch(ctx, pArg); + if( pFromCache ){ + pFromCache->nJPRef++; + if( (flgs & JSON_EDITABLE)==0 ){ + return pFromCache; } } -} + db = sqlite3_context_db_handle(ctx); +rebuild_from_cache: + p = sqlite3DbMallocZero(db, sizeof(*p)); + if( p==0 ) goto json_pfa_oom; + memset(p, 0, sizeof(*p)); + p->db = db; + p->nJPRef = 1; + if( pFromCache!=0 ){ + u32 nBlob = pFromCache->nBlob; + p->aBlob = sqlite3DbMallocRaw(db, nBlob); + if( p->aBlob==0 ) goto json_pfa_oom; + memcpy(p->aBlob, pFromCache->aBlob, nBlob); + p->nBlobAlloc = p->nBlob = nBlob; + p->hasNonstd = pFromCache->hasNonstd; + jsonParseFree(pFromCache); + return p; + } + if( eType==SQLITE_BLOB ){ + if( jsonArgIsJsonb(pArg,p) ){ + if( (flgs & JSON_EDITABLE)!=0 && jsonBlobMakeEditable(p, 0)==0 ){ + goto json_pfa_oom; + } + return p; + } + /* If the blob is not valid JSONB, fall through into trying to cast + ** the blob into text which is then interpreted as JSON. (tag-20240123-a) + ** + ** This goes against all historical documentation about how the SQLite + ** JSON functions were suppose to work. From the beginning, blob was + ** reserved for expansion and a blob value should have raised an error. + ** But it did not, due to a bug. And many applications came to depend + ** upon this buggy behavior, espeically when using the CLI and reading + ** JSON text using readfile(), which returns a blob. For this reason + ** we will continue to support the bug moving forward. + ** See for example https://sqlite.org/forum/forumpost/012136abd5292b8d + */ + } + p->zJson = (char*)sqlite3_value_text(pArg); + p->nJson = sqlite3_value_bytes(pArg); + if( p->nJson==0 ) goto json_pfa_malformed; + if( NEVER(p->zJson==0) ) goto json_pfa_oom; + if( jsonConvertTextToBlob(p, (flgs & JSON_KEEPERROR) ? 0 : ctx) ){ + if( flgs & JSON_KEEPERROR ){ + p->nErr = 1; + return p; + }else{ + jsonParseFree(p); + return 0; + } + }else{ + int isRCStr = sqlite3ValueIsOfClass(pArg, sqlite3RCStrUnref); + int rc; + if( !isRCStr ){ + char *zNew = sqlite3RCStrNew( p->nJson ); + if( zNew==0 ) goto json_pfa_oom; + memcpy(zNew, p->zJson, p->nJson); + p->zJson = zNew; + p->zJson[p->nJson] = 0; + }else{ + sqlite3RCStrRef(p->zJson); + } + p->bJsonIsRCStr = 1; + rc = jsonCacheInsert(ctx, p); + if( rc==SQLITE_NOMEM ) goto json_pfa_oom; + if( flgs & JSON_EDITABLE ){ + pFromCache = p; + p = 0; + goto rebuild_from_cache; + } + } + return p; +json_pfa_malformed: + if( flgs & JSON_KEEPERROR ){ + p->nErr = 1; + return p; + }else{ + jsonParseFree(p); + sqlite3_result_error(ctx, "malformed JSON", -1); + return 0; + } -/**************************************************************************** -** SQL functions used for testing and debugging -****************************************************************************/ +json_pfa_oom: + jsonParseFree(pFromCache); + jsonParseFree(p); + sqlite3_result_error_nomem(ctx); + return 0; +} -#ifdef SQLITE_DEBUG /* -** The json_parse(JSON) function returns a string which describes -** a parse of the JSON provided. Or it returns NULL if JSON is not -** well-formed. +** Make the return value of a JSON function either the raw JSONB blob +** or make it JSON text, depending on whether the JSON_BLOB flag is +** set on the function. */ -static void jsonParseFunc( +static void jsonReturnParse( sqlite3_context *ctx, - int argc, - sqlite3_value **argv + JsonParse *p ){ - JsonString s; /* Output string - not real JSON */ - JsonParse x; /* The parse */ - u32 i; - - assert( argc==1 ); - if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return; - jsonParseFindParents(&x); - jsonInit(&s, ctx); - for(i=0; i<x.nNode; i++){ - const char *zType; - if( x.aNode[i].jnFlags & JNODE_LABEL ){ - assert( x.aNode[i].eType==JSON_STRING ); - zType = "label"; + int flgs; + if( p->oom ){ + sqlite3_result_error_nomem(ctx); + return; + } + flgs = SQLITE_PTR_TO_INT(sqlite3_user_data(ctx)); + if( flgs & JSON_BLOB ){ + if( p->nBlobAlloc>0 && !p->bReadOnly ){ + sqlite3_result_blob(ctx, p->aBlob, p->nBlob, SQLITE_DYNAMIC); + p->nBlobAlloc = 0; }else{ - zType = jsonType[x.aNode[i].eType]; + sqlite3_result_blob(ctx, p->aBlob, p->nBlob, SQLITE_TRANSIENT); } - jsonPrintf(100, &s,"node %3u: %7s n=%-4d up=%-4d", - i, zType, x.aNode[i].n, x.aUp[i]); - assert( x.aNode[i].eU==0 || x.aNode[i].eU==1 ); - if( x.aNode[i].u.zJContent!=0 ){ - assert( x.aNode[i].eU==1 ); - jsonAppendRaw(&s, " ", 1); - jsonAppendRaw(&s, x.aNode[i].u.zJContent, x.aNode[i].n); - }else{ - assert( x.aNode[i].eU==0 ); + }else{ + JsonString s; + jsonStringInit(&s, ctx); + p->delta = 0; + jsonTranslateBlobToText(p, 0, &s); + jsonReturnString(&s, p, ctx); + sqlite3_result_subtype(ctx, JSON_SUBTYPE); + } +} + +/**************************************************************************** +** SQL functions used for testing and debugging +****************************************************************************/ + +#if SQLITE_DEBUG +/* +** Decode JSONB bytes in aBlob[] starting at iStart through but not +** including iEnd. Indent the +** content by nIndent spaces. +*/ +static void jsonDebugPrintBlob( + JsonParse *pParse, /* JSON content */ + u32 iStart, /* Start rendering here */ + u32 iEnd, /* Do not render this byte or any byte after this one */ + int nIndent, /* Indent by this many spaces */ + sqlite3_str *pOut /* Generate output into this sqlite3_str object */ +){ + while( iStart<iEnd ){ + u32 i, n, nn, sz = 0; + int showContent = 1; + u8 x = pParse->aBlob[iStart] & 0x0f; + u32 savedNBlob = pParse->nBlob; + sqlite3_str_appendf(pOut, "%5d:%*s", iStart, nIndent, ""); + if( pParse->nBlobAlloc>pParse->nBlob ){ + pParse->nBlob = pParse->nBlobAlloc; + } + nn = n = jsonbPayloadSize(pParse, iStart, &sz); + if( nn==0 ) nn = 1; + if( sz>0 && x<JSONB_ARRAY ){ + nn += sz; + } + for(i=0; i<nn; i++){ + sqlite3_str_appendf(pOut, " %02x", pParse->aBlob[iStart+i]); + } + if( n==0 ){ + sqlite3_str_appendf(pOut, " ERROR invalid node size\n"); + iStart = n==0 ? iStart+1 : iEnd; + continue; + } + pParse->nBlob = savedNBlob; + if( iStart+n+sz>iEnd ){ + iEnd = iStart+n+sz; + if( iEnd>pParse->nBlob ){ + if( pParse->nBlobAlloc>0 && iEnd>pParse->nBlobAlloc ){ + iEnd = pParse->nBlobAlloc; + }else{ + iEnd = pParse->nBlob; + } + } + } + sqlite3_str_appendall(pOut," <-- "); + switch( x ){ + case JSONB_NULL: sqlite3_str_appendall(pOut,"null"); break; + case JSONB_TRUE: sqlite3_str_appendall(pOut,"true"); break; + case JSONB_FALSE: sqlite3_str_appendall(pOut,"false"); break; + case JSONB_INT: sqlite3_str_appendall(pOut,"int"); break; + case JSONB_INT5: sqlite3_str_appendall(pOut,"int5"); break; + case JSONB_FLOAT: sqlite3_str_appendall(pOut,"float"); break; + case JSONB_FLOAT5: sqlite3_str_appendall(pOut,"float5"); break; + case JSONB_TEXT: sqlite3_str_appendall(pOut,"text"); break; + case JSONB_TEXTJ: sqlite3_str_appendall(pOut,"textj"); break; + case JSONB_TEXT5: sqlite3_str_appendall(pOut,"text5"); break; + case JSONB_TEXTRAW: sqlite3_str_appendall(pOut,"textraw"); break; + case JSONB_ARRAY: { + sqlite3_str_appendf(pOut,"array, %u bytes\n", sz); + jsonDebugPrintBlob(pParse, iStart+n, iStart+n+sz, nIndent+2, pOut); + showContent = 0; + break; + } + case JSONB_OBJECT: { + sqlite3_str_appendf(pOut, "object, %u bytes\n", sz); + jsonDebugPrintBlob(pParse, iStart+n, iStart+n+sz, nIndent+2, pOut); + showContent = 0; + break; + } + default: { + sqlite3_str_appendall(pOut, "ERROR: unknown node type\n"); + showContent = 0; + break; + } + } + if( showContent ){ + if( sz==0 && x<=JSONB_FALSE ){ + sqlite3_str_append(pOut, "\n", 1); + }else{ + u32 i; + sqlite3_str_appendall(pOut, ": \""); + for(i=iStart+n; i<iStart+n+sz; i++){ + u8 c = pParse->aBlob[i]; + if( c<0x20 || c>=0x7f ) c = '.'; + sqlite3_str_append(pOut, (char*)&c, 1); + } + sqlite3_str_append(pOut, "\"\n", 2); + } } - jsonAppendRaw(&s, "\n", 1); + iStart += n + sz; + } +} +static void jsonShowParse(JsonParse *pParse){ + sqlite3_str out; + char zBuf[1000]; + if( pParse==0 ){ + printf("NULL pointer\n"); + return; + }else{ + printf("nBlobAlloc = %u\n", pParse->nBlobAlloc); + printf("nBlob = %u\n", pParse->nBlob); + printf("delta = %d\n", pParse->delta); + if( pParse->nBlob==0 ) return; + printf("content (bytes 0..%u):\n", pParse->nBlob-1); } - jsonParseReset(&x); - jsonResult(&s); + sqlite3StrAccumInit(&out, 0, zBuf, sizeof(zBuf), 1000000); + jsonDebugPrintBlob(pParse, 0, pParse->nBlob, 0, &out); + printf("%s", sqlite3_str_value(&out)); + sqlite3_str_reset(&out); } +#endif /* SQLITE_DEBUG */ +#ifdef SQLITE_DEBUG /* -** The json_test1(JSON) function return true (1) if the input is JSON -** text generated by another json function. It returns (0) if the input -** is not known to be JSON. +** SQL function: json_parse(JSON) +** +** Parse JSON using jsonParseFuncArg(). Return text that is a +** human-readable dump of the binary JSONB for the input parameter. */ -static void jsonTest1Func( +static void jsonParseFunc( sqlite3_context *ctx, int argc, sqlite3_value **argv ){ - UNUSED_PARAMETER(argc); - sqlite3_result_int(ctx, sqlite3_value_subtype(argv[0])==JSON_SUBTYPE); + JsonParse *p; /* The parse */ + sqlite3_str out; + + assert( argc>=1 ); + sqlite3StrAccumInit(&out, 0, 0, 0, 1000000); + p = jsonParseFuncArg(ctx, argv[0], 0); + if( p==0 ) return; + if( argc==1 ){ + jsonDebugPrintBlob(p, 0, p->nBlob, 0, &out); + sqlite3_result_text64(ctx, out.zText, out.nChar, SQLITE_DYNAMIC, SQLITE_UTF8); + }else{ + jsonShowParse(p); + } + jsonParseFree(p); } #endif /* SQLITE_DEBUG */ @@ -194644,7 +206742,7 @@ static void jsonTest1Func( ****************************************************************************/ /* -** Implementation of the json_QUOTE(VALUE) function. Return a JSON value +** Implementation of the json_quote(VALUE) function. Return a JSON value ** corresponding to the SQL value input. Mostly this means putting ** double-quotes around strings and returning the unquoted string "null" ** when given a NULL input. @@ -194657,9 +206755,9 @@ static void jsonQuoteFunc( JsonString jx; UNUSED_PARAMETER(argc); - jsonInit(&jx, ctx); - jsonAppendValue(&jx, argv[0]); - jsonResult(&jx); + jsonStringInit(&jx, ctx); + jsonAppendSqlValue(&jx, argv[0]); + jsonReturnString(&jx, 0, 0); sqlite3_result_subtype(ctx, JSON_SUBTYPE); } @@ -194676,18 +206774,17 @@ static void jsonArrayFunc( int i; JsonString jx; - jsonInit(&jx, ctx); + jsonStringInit(&jx, ctx); jsonAppendChar(&jx, '['); for(i=0; i<argc; i++){ jsonAppendSeparator(&jx); - jsonAppendValue(&jx, argv[i]); + jsonAppendSqlValue(&jx, argv[i]); } jsonAppendChar(&jx, ']'); - jsonResult(&jx); + jsonReturnString(&jx, 0, 0); sqlite3_result_subtype(ctx, JSON_SUBTYPE); } - /* ** json_array_length(JSON) ** json_array_length(JSON, PATH) @@ -194701,39 +206798,53 @@ static void jsonArrayLengthFunc( sqlite3_value **argv ){ JsonParse *p; /* The parse */ - sqlite3_int64 n = 0; + sqlite3_int64 cnt = 0; u32 i; - JsonNode *pNode; + u8 eErr = 0; - p = jsonParseCached(ctx, argv, ctx); + p = jsonParseFuncArg(ctx, argv[0], 0); if( p==0 ) return; - assert( p->nNode ); if( argc==2 ){ const char *zPath = (const char*)sqlite3_value_text(argv[1]); - pNode = jsonLookup(p, zPath, 0, ctx); + if( zPath==0 ){ + jsonParseFree(p); + return; + } + i = jsonLookupStep(p, 0, zPath[0]=='$' ? zPath+1 : "@", 0); + if( JSON_LOOKUP_ISERROR(i) ){ + if( i==JSON_LOOKUP_NOTFOUND ){ + /* no-op */ + }else if( i==JSON_LOOKUP_PATHERROR ){ + jsonBadPathError(ctx, zPath); + }else{ + sqlite3_result_error(ctx, "malformed JSON", -1); + } + eErr = 1; + i = 0; + } }else{ - pNode = p->aNode; - } - if( pNode==0 ){ - return; + i = 0; } - if( pNode->eType==JSON_ARRAY ){ - assert( (pNode->jnFlags & JNODE_APPEND)==0 ); - for(i=1; i<=pNode->n; n++){ - i += jsonNodeSize(&pNode[i]); - } + if( (p->aBlob[i] & 0x0f)==JSONB_ARRAY ){ + cnt = jsonbArrayCount(p, i); } - sqlite3_result_int64(ctx, n); + if( !eErr ) sqlite3_result_int64(ctx, cnt); + jsonParseFree(p); } -/* -** Bit values for the flags passed into jsonExtractFunc() or -** jsonSetFunc() via the user-data value. -*/ -#define JSON_JSON 0x01 /* Result is always JSON */ -#define JSON_SQL 0x02 /* Result is always SQL */ -#define JSON_ABPATH 0x03 /* Allow abbreviated JSON path specs */ -#define JSON_ISSET 0x04 /* json_set(), not json_insert() */ +/* True if the string is all digits */ +static int jsonAllDigits(const char *z, int n){ + int i; + for(i=0; i<n && sqlite3Isdigit(z[i]); i++){} + return i==n; +} + +/* True if the string is all alphanumerics and underscores */ +static int jsonAllAlphanum(const char *z, int n){ + int i; + for(i=0; i<n && (sqlite3Isalnum(z[i]) || z[i]=='_'); i++){} + return i==n; +} /* ** json_extract(JSON, PATH, ...) @@ -194760,161 +206871,307 @@ static void jsonExtractFunc( int argc, sqlite3_value **argv ){ - JsonParse *p; /* The parse */ - JsonNode *pNode; - const char *zPath; - int flags = SQLITE_PTR_TO_INT(sqlite3_user_data(ctx)); - JsonString jx; + JsonParse *p = 0; /* The parse */ + int flags; /* Flags associated with the function */ + int i; /* Loop counter */ + JsonString jx; /* String for array result */ if( argc<2 ) return; - p = jsonParseCached(ctx, argv, ctx); + p = jsonParseFuncArg(ctx, argv[0], 0); if( p==0 ) return; - if( argc==2 ){ + flags = SQLITE_PTR_TO_INT(sqlite3_user_data(ctx)); + jsonStringInit(&jx, ctx); + if( argc>2 ){ + jsonAppendChar(&jx, '['); + } + for(i=1; i<argc; i++){ /* With a single PATH argument */ - zPath = (const char*)sqlite3_value_text(argv[1]); - if( zPath==0 ) return; - if( flags & JSON_ABPATH ){ - if( zPath[0]!='$' ){ - /* The -> and ->> operators accept abbreviated PATH arguments. This - ** is mostly for compatibility with PostgreSQL, but also for - ** convenience. - ** - ** NUMBER ==> $[NUMBER] // PG compatible - ** LABEL ==> $.LABEL // PG compatible - ** [NUMBER] ==> $[NUMBER] // Not PG. Purely for convenience - */ - jsonInit(&jx, ctx); - if( sqlite3Isdigit(zPath[0]) ){ - jsonAppendRaw(&jx, "$[", 2); - jsonAppendRaw(&jx, zPath, (int)strlen(zPath)); - jsonAppendRaw(&jx, "]", 2); - }else{ - jsonAppendRaw(&jx, "$.", 1 + (zPath[0]!='[')); - jsonAppendRaw(&jx, zPath, (int)strlen(zPath)); - jsonAppendChar(&jx, 0); - } - pNode = jx.bErr ? 0 : jsonLookup(p, jx.zBuf, 0, ctx); - jsonReset(&jx); + const char *zPath = (const char*)sqlite3_value_text(argv[i]); + int nPath; + u32 j; + if( zPath==0 ) goto json_extract_error; + nPath = sqlite3Strlen30(zPath); + if( zPath[0]=='$' ){ + j = jsonLookupStep(p, 0, zPath+1, 0); + }else if( (flags & JSON_ABPATH) ){ + /* The -> and ->> operators accept abbreviated PATH arguments. This + ** is mostly for compatibility with PostgreSQL, but also for + ** convenience. + ** + ** NUMBER ==> $[NUMBER] // PG compatible + ** LABEL ==> $.LABEL // PG compatible + ** [NUMBER] ==> $[NUMBER] // Not PG. Purely for convenience + */ + jsonStringInit(&jx, ctx); + if( jsonAllDigits(zPath, nPath) ){ + jsonAppendRawNZ(&jx, "[", 1); + jsonAppendRaw(&jx, zPath, nPath); + jsonAppendRawNZ(&jx, "]", 2); + }else if( jsonAllAlphanum(zPath, nPath) ){ + jsonAppendRawNZ(&jx, ".", 1); + jsonAppendRaw(&jx, zPath, nPath); + }else if( zPath[0]=='[' && nPath>=3 && zPath[nPath-1]==']' ){ + jsonAppendRaw(&jx, zPath, nPath); }else{ - pNode = jsonLookup(p, zPath, 0, ctx); + jsonAppendRawNZ(&jx, ".\"", 2); + jsonAppendRaw(&jx, zPath, nPath); + jsonAppendRawNZ(&jx, "\"", 1); } - if( pNode ){ + jsonStringTerminate(&jx); + j = jsonLookupStep(p, 0, jx.zBuf, 0); + jsonStringReset(&jx); + }else{ + jsonBadPathError(ctx, zPath); + goto json_extract_error; + } + if( j<p->nBlob ){ + if( argc==2 ){ if( flags & JSON_JSON ){ - jsonReturnJson(pNode, ctx, 0); + jsonStringInit(&jx, ctx); + jsonTranslateBlobToText(p, j, &jx); + jsonReturnString(&jx, 0, 0); + jsonStringReset(&jx); + assert( (flags & JSON_BLOB)==0 ); + sqlite3_result_subtype(ctx, JSON_SUBTYPE); }else{ - jsonReturn(pNode, ctx, 0); - sqlite3_result_subtype(ctx, 0); + jsonReturnFromBlob(p, j, ctx, 0); + if( (flags & (JSON_SQL|JSON_BLOB))==0 + && (p->aBlob[j]&0x0f)>=JSONB_ARRAY + ){ + sqlite3_result_subtype(ctx, JSON_SUBTYPE); + } } + }else{ + jsonAppendSeparator(&jx); + jsonTranslateBlobToText(p, j, &jx); } - }else{ - pNode = jsonLookup(p, zPath, 0, ctx); - if( p->nErr==0 && pNode ) jsonReturn(pNode, ctx, 0); - } - }else{ - /* Two or more PATH arguments results in a JSON array with each - ** element of the array being the value selected by one of the PATHs */ - int i; - jsonInit(&jx, ctx); - jsonAppendChar(&jx, '['); - for(i=1; i<argc; i++){ - zPath = (const char*)sqlite3_value_text(argv[i]); - pNode = jsonLookup(p, zPath, 0, ctx); - if( p->nErr ) break; - jsonAppendSeparator(&jx); - if( pNode ){ - jsonRenderNode(pNode, &jx, 0); + }else if( j==JSON_LOOKUP_NOTFOUND ){ + if( argc==2 ){ + goto json_extract_error; /* Return NULL if not found */ }else{ - jsonAppendRaw(&jx, "null", 4); + jsonAppendSeparator(&jx); + jsonAppendRawNZ(&jx, "null", 4); } + }else if( j==JSON_LOOKUP_ERROR ){ + sqlite3_result_error(ctx, "malformed JSON", -1); + goto json_extract_error; + }else{ + jsonBadPathError(ctx, zPath); + goto json_extract_error; } - if( i==argc ){ - jsonAppendChar(&jx, ']'); - jsonResult(&jx); + } + if( argc>2 ){ + jsonAppendChar(&jx, ']'); + jsonReturnString(&jx, 0, 0); + if( (flags & JSON_BLOB)==0 ){ sqlite3_result_subtype(ctx, JSON_SUBTYPE); } - jsonReset(&jx); } +json_extract_error: + jsonStringReset(&jx); + jsonParseFree(p); + return; } -/* This is the RFC 7396 MergePatch algorithm. -*/ -static JsonNode *jsonMergePatch( - JsonParse *pParse, /* The JSON parser that contains the TARGET */ - u32 iTarget, /* Node of the TARGET in pParse */ - JsonNode *pPatch /* The PATCH */ -){ - u32 i, j; - u32 iRoot; - JsonNode *pTarget; - if( pPatch->eType!=JSON_OBJECT ){ - return pPatch; - } - assert( iTarget>=0 && iTarget<pParse->nNode ); - pTarget = &pParse->aNode[iTarget]; - assert( (pPatch->jnFlags & JNODE_APPEND)==0 ); - if( pTarget->eType!=JSON_OBJECT ){ - jsonRemoveAllNulls(pPatch); - return pPatch; - } - iRoot = iTarget; - for(i=1; i<pPatch->n; i += jsonNodeSize(&pPatch[i+1])+1){ - u32 nKey; - const char *zKey; - assert( pPatch[i].eType==JSON_STRING ); - assert( pPatch[i].jnFlags & JNODE_LABEL ); - assert( pPatch[i].eU==1 ); - nKey = pPatch[i].n; - zKey = pPatch[i].u.zJContent; - assert( (pPatch[i].jnFlags & JNODE_RAW)==0 ); - for(j=1; j<pTarget->n; j += jsonNodeSize(&pTarget[j+1])+1 ){ - assert( pTarget[j].eType==JSON_STRING ); - assert( pTarget[j].jnFlags & JNODE_LABEL ); - assert( (pPatch[i].jnFlags & JNODE_RAW)==0 ); - if( pTarget[j].n==nKey && strncmp(pTarget[j].u.zJContent,zKey,nKey)==0 ){ - if( pTarget[j+1].jnFlags & (JNODE_REMOVE|JNODE_PATCH) ) break; - if( pPatch[i+1].eType==JSON_NULL ){ - pTarget[j+1].jnFlags |= JNODE_REMOVE; - }else{ - JsonNode *pNew = jsonMergePatch(pParse, iTarget+j+1, &pPatch[i+1]); - if( pNew==0 ) return 0; - pTarget = &pParse->aNode[iTarget]; - if( pNew!=&pTarget[j+1] ){ - assert( pTarget[j+1].eU==0 - || pTarget[j+1].eU==1 - || pTarget[j+1].eU==2 ); - testcase( pTarget[j+1].eU==1 ); - testcase( pTarget[j+1].eU==2 ); - VVA( pTarget[j+1].eU = 5 ); - pTarget[j+1].u.pPatch = pNew; - pTarget[j+1].jnFlags |= JNODE_PATCH; - } - } - break; +/* +** Return codes for jsonMergePatch() +*/ +#define JSON_MERGE_OK 0 /* Success */ +#define JSON_MERGE_BADTARGET 1 /* Malformed TARGET blob */ +#define JSON_MERGE_BADPATCH 2 /* Malformed PATCH blob */ +#define JSON_MERGE_OOM 3 /* Out-of-memory condition */ + +/* +** RFC-7396 MergePatch for two JSONB blobs. +** +** pTarget is the target. pPatch is the patch. The target is updated +** in place. The patch is read-only. +** +** The original RFC-7396 algorithm is this: +** +** define MergePatch(Target, Patch): +** if Patch is an Object: +** if Target is not an Object: +** Target = {} # Ignore the contents and set it to an empty Object +** for each Name/Value pair in Patch: +** if Value is null: +** if Name exists in Target: +** remove the Name/Value pair from Target +** else: +** Target[Name] = MergePatch(Target[Name], Value) +** return Target +** else: +** return Patch +** +** Here is an equivalent algorithm restructured to show the actual +** implementation: +** +** 01 define MergePatch(Target, Patch): +** 02 if Patch is not an Object: +** 03 return Patch +** 04 else: // if Patch is an Object +** 05 if Target is not an Object: +** 06 Target = {} +** 07 for each Name/Value pair in Patch: +** 08 if Name exists in Target: +** 09 if Value is null: +** 10 remove the Name/Value pair from Target +** 11 else +** 12 Target[name] = MergePatch(Target[Name], Value) +** 13 else if Value is not NULL: +** 14 if Value is not an Object: +** 15 Target[name] = Value +** 16 else: +** 17 Target[name] = MergePatch('{}',value) +** 18 return Target +** | +** ^---- Line numbers referenced in comments in the implementation +*/ +static int jsonMergePatch( + JsonParse *pTarget, /* The JSON parser that contains the TARGET */ + u32 iTarget, /* Index of TARGET in pTarget->aBlob[] */ + const JsonParse *pPatch, /* The PATCH */ + u32 iPatch /* Index of PATCH in pPatch->aBlob[] */ +){ + u8 x; /* Type of a single node */ + u32 n, sz=0; /* Return values from jsonbPayloadSize() */ + u32 iTCursor; /* Cursor position while scanning the target object */ + u32 iTStart; /* First label in the target object */ + u32 iTEndBE; /* Original first byte past end of target, before edit */ + u32 iTEnd; /* Current first byte past end of target */ + u8 eTLabel; /* Node type of the target label */ + u32 iTLabel = 0; /* Index of the label */ + u32 nTLabel = 0; /* Header size in bytes for the target label */ + u32 szTLabel = 0; /* Size of the target label payload */ + u32 iTValue = 0; /* Index of the target value */ + u32 nTValue = 0; /* Header size of the target value */ + u32 szTValue = 0; /* Payload size for the target value */ + + u32 iPCursor; /* Cursor position while scanning the patch */ + u32 iPEnd; /* First byte past the end of the patch */ + u8 ePLabel; /* Node type of the patch label */ + u32 iPLabel; /* Start of patch label */ + u32 nPLabel; /* Size of header on the patch label */ + u32 szPLabel; /* Payload size of the patch label */ + u32 iPValue; /* Start of patch value */ + u32 nPValue; /* Header size for the patch value */ + u32 szPValue; /* Payload size of the patch value */ + + assert( iTarget>=0 && iTarget<pTarget->nBlob ); + assert( iPatch>=0 && iPatch<pPatch->nBlob ); + x = pPatch->aBlob[iPatch] & 0x0f; + if( x!=JSONB_OBJECT ){ /* Algorithm line 02 */ + u32 szPatch; /* Total size of the patch, header+payload */ + u32 szTarget; /* Total size of the target, header+payload */ + n = jsonbPayloadSize(pPatch, iPatch, &sz); + szPatch = n+sz; + sz = 0; + n = jsonbPayloadSize(pTarget, iTarget, &sz); + szTarget = n+sz; + jsonBlobEdit(pTarget, iTarget, szTarget, pPatch->aBlob+iPatch, szPatch); + return pTarget->oom ? JSON_MERGE_OOM : JSON_MERGE_OK; /* Line 03 */ + } + x = pTarget->aBlob[iTarget] & 0x0f; + if( x!=JSONB_OBJECT ){ /* Algorithm line 05 */ + n = jsonbPayloadSize(pTarget, iTarget, &sz); + jsonBlobEdit(pTarget, iTarget+n, sz, 0, 0); + x = pTarget->aBlob[iTarget]; + pTarget->aBlob[iTarget] = (x & 0xf0) | JSONB_OBJECT; + } + n = jsonbPayloadSize(pPatch, iPatch, &sz); + if( NEVER(n==0) ) return JSON_MERGE_BADPATCH; + iPCursor = iPatch+n; + iPEnd = iPCursor+sz; + n = jsonbPayloadSize(pTarget, iTarget, &sz); + if( NEVER(n==0) ) return JSON_MERGE_BADTARGET; + iTStart = iTarget+n; + iTEndBE = iTStart+sz; + + while( iPCursor<iPEnd ){ /* Algorithm line 07 */ + iPLabel = iPCursor; + ePLabel = pPatch->aBlob[iPCursor] & 0x0f; + if( ePLabel<JSONB_TEXT || ePLabel>JSONB_TEXTRAW ){ + return JSON_MERGE_BADPATCH; + } + nPLabel = jsonbPayloadSize(pPatch, iPCursor, &szPLabel); + if( nPLabel==0 ) return JSON_MERGE_BADPATCH; + iPValue = iPCursor + nPLabel + szPLabel; + if( iPValue>=iPEnd ) return JSON_MERGE_BADPATCH; + nPValue = jsonbPayloadSize(pPatch, iPValue, &szPValue); + if( nPValue==0 ) return JSON_MERGE_BADPATCH; + iPCursor = iPValue + nPValue + szPValue; + if( iPCursor>iPEnd ) return JSON_MERGE_BADPATCH; + + iTCursor = iTStart; + iTEnd = iTEndBE + pTarget->delta; + while( iTCursor<iTEnd ){ + int isEqual; /* true if the patch and target labels match */ + iTLabel = iTCursor; + eTLabel = pTarget->aBlob[iTCursor] & 0x0f; + if( eTLabel<JSONB_TEXT || eTLabel>JSONB_TEXTRAW ){ + return JSON_MERGE_BADTARGET; + } + nTLabel = jsonbPayloadSize(pTarget, iTCursor, &szTLabel); + if( nTLabel==0 ) return JSON_MERGE_BADTARGET; + iTValue = iTLabel + nTLabel + szTLabel; + if( iTValue>=iTEnd ) return JSON_MERGE_BADTARGET; + nTValue = jsonbPayloadSize(pTarget, iTValue, &szTValue); + if( nTValue==0 ) return JSON_MERGE_BADTARGET; + if( iTValue + nTValue + szTValue > iTEnd ) return JSON_MERGE_BADTARGET; + isEqual = jsonLabelCompare( + (const char*)&pPatch->aBlob[iPLabel+nPLabel], + szPLabel, + (ePLabel==JSONB_TEXT || ePLabel==JSONB_TEXTRAW), + (const char*)&pTarget->aBlob[iTLabel+nTLabel], + szTLabel, + (eTLabel==JSONB_TEXT || eTLabel==JSONB_TEXTRAW)); + if( isEqual ) break; + iTCursor = iTValue + nTValue + szTValue; + } + x = pPatch->aBlob[iPValue] & 0x0f; + if( iTCursor<iTEnd ){ + /* A match was found. Algorithm line 08 */ + if( x==0 ){ + /* Patch value is NULL. Algorithm line 09 */ + jsonBlobEdit(pTarget, iTLabel, nTLabel+szTLabel+nTValue+szTValue, 0,0); + /* vvvvvv----- No OOM on a delete-only edit */ + if( NEVER(pTarget->oom) ) return JSON_MERGE_OOM; + }else{ + /* Algorithm line 12 */ + int rc, savedDelta = pTarget->delta; + pTarget->delta = 0; + rc = jsonMergePatch(pTarget, iTValue, pPatch, iPValue); + if( rc ) return rc; + pTarget->delta += savedDelta; + } + }else if( x>0 ){ /* Algorithm line 13 */ + /* No match and patch value is not NULL */ + u32 szNew = szPLabel+nPLabel; + if( (pPatch->aBlob[iPValue] & 0x0f)!=JSONB_OBJECT ){ /* Line 14 */ + jsonBlobEdit(pTarget, iTEnd, 0, 0, szPValue+nPValue+szNew); + if( pTarget->oom ) return JSON_MERGE_OOM; + memcpy(&pTarget->aBlob[iTEnd], &pPatch->aBlob[iPLabel], szNew); + memcpy(&pTarget->aBlob[iTEnd+szNew], + &pPatch->aBlob[iPValue], szPValue+nPValue); + }else{ + int rc, savedDelta; + jsonBlobEdit(pTarget, iTEnd, 0, 0, szNew+1); + if( pTarget->oom ) return JSON_MERGE_OOM; + memcpy(&pTarget->aBlob[iTEnd], &pPatch->aBlob[iPLabel], szNew); + pTarget->aBlob[iTEnd+szNew] = 0x00; + savedDelta = pTarget->delta; + pTarget->delta = 0; + rc = jsonMergePatch(pTarget, iTEnd+szNew,pPatch,iPValue); + if( rc ) return rc; + pTarget->delta += savedDelta; } } - if( j>=pTarget->n && pPatch[i+1].eType!=JSON_NULL ){ - int iStart, iPatch; - iStart = jsonParseAddNode(pParse, JSON_OBJECT, 2, 0); - jsonParseAddNode(pParse, JSON_STRING, nKey, zKey); - iPatch = jsonParseAddNode(pParse, JSON_TRUE, 0, 0); - if( pParse->oom ) return 0; - jsonRemoveAllNulls(pPatch); - pTarget = &pParse->aNode[iTarget]; - assert( pParse->aNode[iRoot].eU==0 || pParse->aNode[iRoot].eU==2 ); - testcase( pParse->aNode[iRoot].eU==2 ); - pParse->aNode[iRoot].jnFlags |= JNODE_APPEND; - VVA( pParse->aNode[iRoot].eU = 2 ); - pParse->aNode[iRoot].u.iAppend = iStart - iRoot; - iRoot = iStart; - assert( pParse->aNode[iPatch].eU==0 ); - VVA( pParse->aNode[iPatch].eU = 5 ); - pParse->aNode[iPatch].jnFlags |= JNODE_PATCH; - pParse->aNode[iPatch].u.pPatch = &pPatch[i+1]; - } } - return pTarget; + if( pTarget->delta ) jsonAfterEditSizeAdjust(pTarget, iTarget); + return pTarget->oom ? JSON_MERGE_OOM : JSON_MERGE_OK; } + /* ** Implementation of the json_mergepatch(JSON1,JSON2) function. Return a JSON ** object that is the result of running the RFC 7396 MergePatch() algorithm @@ -194925,25 +207182,27 @@ static void jsonPatchFunc( int argc, sqlite3_value **argv ){ - JsonParse x; /* The JSON that is being patched */ - JsonParse y; /* The patch */ - JsonNode *pResult; /* The result of the merge */ + JsonParse *pTarget; /* The TARGET */ + JsonParse *pPatch; /* The PATCH */ + int rc; /* Result code */ UNUSED_PARAMETER(argc); - if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return; - if( jsonParse(&y, ctx, (const char*)sqlite3_value_text(argv[1])) ){ - jsonParseReset(&x); - return; - } - pResult = jsonMergePatch(&x, 0, y.aNode); - assert( pResult!=0 || x.oom ); - if( pResult ){ - jsonReturnJson(pResult, ctx, 0); - }else{ - sqlite3_result_error_nomem(ctx); + assert( argc==2 ); + pTarget = jsonParseFuncArg(ctx, argv[0], JSON_EDITABLE); + if( pTarget==0 ) return; + pPatch = jsonParseFuncArg(ctx, argv[1], 0); + if( pPatch ){ + rc = jsonMergePatch(pTarget, 0, pPatch, 0); + if( rc==JSON_MERGE_OK ){ + jsonReturnParse(ctx, pTarget); + }else if( rc==JSON_MERGE_OOM ){ + sqlite3_result_error_nomem(ctx); + }else{ + sqlite3_result_error(ctx, "malformed JSON", -1); + } + jsonParseFree(pPatch); } - jsonParseReset(&x); - jsonParseReset(&y); + jsonParseFree(pTarget); } @@ -194967,23 +207226,23 @@ static void jsonObjectFunc( "of arguments", -1); return; } - jsonInit(&jx, ctx); + jsonStringInit(&jx, ctx); jsonAppendChar(&jx, '{'); for(i=0; i<argc; i+=2){ if( sqlite3_value_type(argv[i])!=SQLITE_TEXT ){ sqlite3_result_error(ctx, "json_object() labels must be TEXT", -1); - jsonReset(&jx); + jsonStringReset(&jx); return; } jsonAppendSeparator(&jx); z = (const char*)sqlite3_value_text(argv[i]); - n = (u32)sqlite3_value_bytes(argv[i]); + n = sqlite3_value_bytes(argv[i]); jsonAppendString(&jx, z, n); jsonAppendChar(&jx, ':'); - jsonAppendValue(&jx, argv[i+1]); + jsonAppendSqlValue(&jx, argv[i+1]); } jsonAppendChar(&jx, '}'); - jsonResult(&jx); + jsonReturnString(&jx, 0, 0); sqlite3_result_subtype(ctx, JSON_SUBTYPE); } @@ -194999,26 +207258,50 @@ static void jsonRemoveFunc( int argc, sqlite3_value **argv ){ - JsonParse x; /* The parse */ - JsonNode *pNode; - const char *zPath; - u32 i; + JsonParse *p; /* The parse */ + const char *zPath = 0; /* Path of element to be removed */ + int i; /* Loop counter */ + u32 rc; /* Subroutine return code */ if( argc<1 ) return; - if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return; - assert( x.nNode ); - for(i=1; i<(u32)argc; i++){ + p = jsonParseFuncArg(ctx, argv[0], argc>1 ? JSON_EDITABLE : 0); + if( p==0 ) return; + for(i=1; i<argc; i++){ zPath = (const char*)sqlite3_value_text(argv[i]); - if( zPath==0 ) goto remove_done; - pNode = jsonLookup(&x, zPath, 0, ctx); - if( x.nErr ) goto remove_done; - if( pNode ) pNode->jnFlags |= JNODE_REMOVE; - } - if( (x.aNode[0].jnFlags & JNODE_REMOVE)==0 ){ - jsonReturnJson(x.aNode, ctx, 0); + if( zPath==0 ){ + goto json_remove_done; + } + if( zPath[0]!='$' ){ + goto json_remove_patherror; + } + if( zPath[1]==0 ){ + /* json_remove(j,'$') returns NULL */ + goto json_remove_done; + } + p->eEdit = JEDIT_DEL; + p->delta = 0; + rc = jsonLookupStep(p, 0, zPath+1, 0); + if( JSON_LOOKUP_ISERROR(rc) ){ + if( rc==JSON_LOOKUP_NOTFOUND ){ + continue; /* No-op */ + }else if( rc==JSON_LOOKUP_PATHERROR ){ + jsonBadPathError(ctx, zPath); + }else{ + sqlite3_result_error(ctx, "malformed JSON", -1); + } + goto json_remove_done; + } } -remove_done: - jsonParseReset(&x); + jsonReturnParse(ctx, p); + jsonParseFree(p); + return; + +json_remove_patherror: + jsonBadPathError(ctx, zPath); + +json_remove_done: + jsonParseFree(p); + return; } /* @@ -195032,38 +207315,12 @@ static void jsonReplaceFunc( int argc, sqlite3_value **argv ){ - JsonParse x; /* The parse */ - JsonNode *pNode; - const char *zPath; - u32 i; - if( argc<1 ) return; if( (argc&1)==0 ) { jsonWrongNumArgs(ctx, "replace"); return; } - if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return; - assert( x.nNode ); - for(i=1; i<(u32)argc; i+=2){ - zPath = (const char*)sqlite3_value_text(argv[i]); - pNode = jsonLookup(&x, zPath, 0, ctx); - if( x.nErr ) goto replace_err; - if( pNode ){ - assert( pNode->eU==0 || pNode->eU==1 || pNode->eU==4 ); - testcase( pNode->eU!=0 && pNode->eU!=1 ); - pNode->jnFlags |= (u8)JNODE_REPLACE; - VVA( pNode->eU = 4 ); - pNode->u.iReplace = i + 1; - } - } - if( x.aNode[0].jnFlags & JNODE_REPLACE ){ - assert( x.aNode[0].eU==4 ); - sqlite3_result_value(ctx, argv[x.aNode[0].u.iReplace]); - }else{ - jsonReturnJson(x.aNode, ctx, argv); - } -replace_err: - jsonParseReset(&x); + jsonInsertIntoBlob(ctx, argc, argv, JEDIT_REPL); } @@ -195084,45 +207341,16 @@ static void jsonSetFunc( int argc, sqlite3_value **argv ){ - JsonParse x; /* The parse */ - JsonNode *pNode; - const char *zPath; - u32 i; - int bApnd; - int bIsSet = sqlite3_user_data(ctx)!=0; + + int flags = SQLITE_PTR_TO_INT(sqlite3_user_data(ctx)); + int bIsSet = (flags&JSON_ISSET)!=0; if( argc<1 ) return; if( (argc&1)==0 ) { jsonWrongNumArgs(ctx, bIsSet ? "set" : "insert"); return; } - if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return; - assert( x.nNode ); - for(i=1; i<(u32)argc; i+=2){ - zPath = (const char*)sqlite3_value_text(argv[i]); - bApnd = 0; - pNode = jsonLookup(&x, zPath, &bApnd, ctx); - if( x.oom ){ - sqlite3_result_error_nomem(ctx); - goto jsonSetDone; - }else if( x.nErr ){ - goto jsonSetDone; - }else if( pNode && (bApnd || bIsSet) ){ - testcase( pNode->eU!=0 && pNode->eU!=1 ); - assert( pNode->eU!=3 && pNode->eU!=5 ); - VVA( pNode->eU = 4 ); - pNode->jnFlags |= (u8)JNODE_REPLACE; - pNode->u.iReplace = i + 1; - } - } - if( x.aNode[0].jnFlags & JNODE_REPLACE ){ - assert( x.aNode[0].eU==4 ); - sqlite3_result_value(ctx, argv[x.aNode[0].u.iReplace]); - }else{ - jsonReturnJson(x.aNode, ctx, argv); - } -jsonSetDone: - jsonParseReset(&x); + jsonInsertIntoBlob(ctx, argc, argv, bIsSet ? JEDIT_SET : JEDIT_INS); } /* @@ -195138,27 +207366,93 @@ static void jsonTypeFunc( sqlite3_value **argv ){ JsonParse *p; /* The parse */ - const char *zPath; - JsonNode *pNode; + const char *zPath = 0; + u32 i; - p = jsonParseCached(ctx, argv, ctx); + p = jsonParseFuncArg(ctx, argv[0], 0); if( p==0 ) return; if( argc==2 ){ zPath = (const char*)sqlite3_value_text(argv[1]); - pNode = jsonLookup(p, zPath, 0, ctx); + if( zPath==0 ) goto json_type_done; + if( zPath[0]!='$' ){ + jsonBadPathError(ctx, zPath); + goto json_type_done; + } + i = jsonLookupStep(p, 0, zPath+1, 0); + if( JSON_LOOKUP_ISERROR(i) ){ + if( i==JSON_LOOKUP_NOTFOUND ){ + /* no-op */ + }else if( i==JSON_LOOKUP_PATHERROR ){ + jsonBadPathError(ctx, zPath); + }else{ + sqlite3_result_error(ctx, "malformed JSON", -1); + } + goto json_type_done; + } }else{ - pNode = p->aNode; - } - if( pNode ){ - sqlite3_result_text(ctx, jsonType[pNode->eType], -1, SQLITE_STATIC); + i = 0; } + sqlite3_result_text(ctx, jsonbType[p->aBlob[i]&0x0f], -1, SQLITE_STATIC); +json_type_done: + jsonParseFree(p); } /* ** json_valid(JSON) -** -** Return 1 if JSON is a well-formed JSON string according to RFC-7159. -** Return 0 otherwise. +** json_valid(JSON, FLAGS) +** +** Check the JSON argument to see if it is well-formed. The FLAGS argument +** encodes the various constraints on what is meant by "well-formed": +** +** 0x01 Canonical RFC-8259 JSON text +** 0x02 JSON text with optional JSON-5 extensions +** 0x04 Superficially appears to be JSONB +** 0x08 Strictly well-formed JSONB +** +** If the FLAGS argument is omitted, it defaults to 1. Useful values for +** FLAGS include: +** +** 1 Strict canonical JSON text +** 2 JSON text perhaps with JSON-5 extensions +** 4 Superficially appears to be JSONB +** 5 Canonical JSON text or superficial JSONB +** 6 JSON-5 text or superficial JSONB +** 8 Strict JSONB +** 9 Canonical JSON text or strict JSONB +** 10 JSON-5 text or strict JSONB +** +** Other flag combinations are redundant. For example, every canonical +** JSON text is also well-formed JSON-5 text, so FLAG values 2 and 3 +** are the same. Similarly, any input that passes a strict JSONB validation +** will also pass the superficial validation so 12 through 15 are the same +** as 8 through 11 respectively. +** +** This routine runs in linear time to validate text and when doing strict +** JSONB validation. Superficial JSONB validation is constant time, +** assuming the BLOB is already in memory. The performance advantage +** of superficial JSONB validation is why that option is provided. +** Application developers can choose to do fast superficial validation or +** slower strict validation, according to their specific needs. +** +** Only the lower four bits of the FLAGS argument are currently used. +** Higher bits are reserved for future expansion. To facilitate +** compatibility, the current implementation raises an error if any bit +** in FLAGS is set other than the lower four bits. +** +** The original circa 2015 implementation of the JSON routines in +** SQLite only supported canonical RFC-8259 JSON text and the json_valid() +** function only accepted one argument. That is why the default value +** for the FLAGS argument is 1, since FLAGS=1 causes this routine to only +** recognize canonical RFC-8259 JSON text as valid. The extra FLAGS +** argument was added when the JSON routines were extended to support +** JSON5-like extensions and binary JSONB stored in BLOBs. +** +** Return Values: +** +** * Raise an error if FLAGS is outside the range of 1 to 15. +** * Return NULL if the input is NULL +** * Return 1 if the input is well-formed. +** * Return 0 if the input is not well-formed. */ static void jsonValidFunc( sqlite3_context *ctx, @@ -195166,11 +207460,127 @@ static void jsonValidFunc( sqlite3_value **argv ){ JsonParse *p; /* The parse */ - UNUSED_PARAMETER(argc); - p = jsonParseCached(ctx, argv, 0); - sqlite3_result_int(ctx, p!=0); + u8 flags = 1; + u8 res = 0; + if( argc==2 ){ + i64 f = sqlite3_value_int64(argv[1]); + if( f<1 || f>15 ){ + sqlite3_result_error(ctx, "FLAGS parameter to json_valid() must be" + " between 1 and 15", -1); + return; + } + flags = f & 0x0f; + } + switch( sqlite3_value_type(argv[0]) ){ + case SQLITE_NULL: { +#ifdef SQLITE_LEGACY_JSON_VALID + /* Incorrect legacy behavior was to return FALSE for a NULL input */ + sqlite3_result_int(ctx, 0); +#endif + return; + } + case SQLITE_BLOB: { + if( jsonFuncArgMightBeBinary(argv[0]) ){ + if( flags & 0x04 ){ + /* Superficial checking only - accomplished by the + ** jsonFuncArgMightBeBinary() call above. */ + res = 1; + }else if( flags & 0x08 ){ + /* Strict checking. Check by translating BLOB->TEXT->BLOB. If + ** no errors occur, call that a "strict check". */ + JsonParse px; + u32 iErr; + memset(&px, 0, sizeof(px)); + px.aBlob = (u8*)sqlite3_value_blob(argv[0]); + px.nBlob = sqlite3_value_bytes(argv[0]); + iErr = jsonbValidityCheck(&px, 0, px.nBlob, 1); + res = iErr==0; + } + break; + } + /* Fall through into interpreting the input as text. See note + ** above at tag-20240123-a. */ + /* no break */ deliberate_fall_through + } + default: { + JsonParse px; + if( (flags & 0x3)==0 ) break; + memset(&px, 0, sizeof(px)); + + p = jsonParseFuncArg(ctx, argv[0], JSON_KEEPERROR); + if( p ){ + if( p->oom ){ + sqlite3_result_error_nomem(ctx); + }else if( p->nErr ){ + /* no-op */ + }else if( (flags & 0x02)!=0 || p->hasNonstd==0 ){ + res = 1; + } + jsonParseFree(p); + }else{ + sqlite3_result_error_nomem(ctx); + } + break; + } + } + sqlite3_result_int(ctx, res); } +/* +** json_error_position(JSON) +** +** If the argument is NULL, return NULL +** +** If the argument is BLOB, do a full validity check and return non-zero +** if the check fails. The return value is the approximate 1-based offset +** to the byte of the element that contains the first error. +** +** Otherwise interpret the argument is TEXT (even if it is numeric) and +** return the 1-based character position for where the parser first recognized +** that the input was not valid JSON, or return 0 if the input text looks +** ok. JSON-5 extensions are accepted. +*/ +static void jsonErrorFunc( + sqlite3_context *ctx, + int argc, + sqlite3_value **argv +){ + i64 iErrPos = 0; /* Error position to be returned */ + JsonParse s; + + assert( argc==1 ); + UNUSED_PARAMETER(argc); + memset(&s, 0, sizeof(s)); + s.db = sqlite3_context_db_handle(ctx); + if( jsonFuncArgMightBeBinary(argv[0]) ){ + s.aBlob = (u8*)sqlite3_value_blob(argv[0]); + s.nBlob = sqlite3_value_bytes(argv[0]); + iErrPos = (i64)jsonbValidityCheck(&s, 0, s.nBlob, 1); + }else{ + s.zJson = (char*)sqlite3_value_text(argv[0]); + if( s.zJson==0 ) return; /* NULL input or OOM */ + s.nJson = sqlite3_value_bytes(argv[0]); + if( jsonConvertTextToBlob(&s,0) ){ + if( s.oom ){ + iErrPos = -1; + }else{ + /* Convert byte-offset s.iErr into a character offset */ + u32 k; + assert( s.zJson!=0 ); /* Because s.oom is false */ + for(k=0; k<s.iErr && ALWAYS(s.zJson[k]); k++){ + if( (s.zJson[k] & 0xc0)!=0x80 ) iErrPos++; + } + iErrPos++; + } + } + } + jsonParseReset(&s); + if( iErrPos<0 ){ + sqlite3_result_error_nomem(ctx); + }else{ + sqlite3_result_int64(ctx, iErrPos); + } +} /**************************************************************************** ** Aggregate SQL function implementations @@ -195190,31 +207600,42 @@ static void jsonArrayStep( pStr = (JsonString*)sqlite3_aggregate_context(ctx, sizeof(*pStr)); if( pStr ){ if( pStr->zBuf==0 ){ - jsonInit(pStr, ctx); + jsonStringInit(pStr, ctx); jsonAppendChar(pStr, '['); }else if( pStr->nUsed>1 ){ jsonAppendChar(pStr, ','); } pStr->pCtx = ctx; - jsonAppendValue(pStr, argv[0]); + jsonAppendSqlValue(pStr, argv[0]); } } static void jsonArrayCompute(sqlite3_context *ctx, int isFinal){ JsonString *pStr; pStr = (JsonString*)sqlite3_aggregate_context(ctx, 0); if( pStr ){ + int flags; pStr->pCtx = ctx; jsonAppendChar(pStr, ']'); - if( pStr->bErr ){ - if( pStr->bErr==1 ) sqlite3_result_error_nomem(ctx); - assert( pStr->bStatic ); + flags = SQLITE_PTR_TO_INT(sqlite3_user_data(ctx)); + if( pStr->eErr ){ + jsonReturnString(pStr, 0, 0); + return; + }else if( flags & JSON_BLOB ){ + jsonReturnStringAsBlob(pStr); + if( isFinal ){ + if( !pStr->bStatic ) sqlite3RCStrUnref(pStr->zBuf); + }else{ + jsonStringTrimOneChar(pStr); + } + return; }else if( isFinal ){ sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, - pStr->bStatic ? SQLITE_TRANSIENT : sqlite3_free); + pStr->bStatic ? SQLITE_TRANSIENT : + sqlite3RCStrUnref); pStr->bStatic = 1; }else{ sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, SQLITE_TRANSIENT); - pStr->nUsed--; + jsonStringTrimOneChar(pStr); } }else{ sqlite3_result_text(ctx, "[]", 2, SQLITE_STATIC); @@ -195251,7 +207672,7 @@ static void jsonGroupInverse( pStr = (JsonString*)sqlite3_aggregate_context(ctx, 0); #ifdef NEVER /* pStr is always non-NULL since jsonArrayStep() or jsonObjectStep() will - ** always have been called to initalize it */ + ** always have been called to initialize it */ if( NEVER(!pStr) ) return; #endif z = pStr->zBuf; @@ -195295,34 +207716,46 @@ static void jsonObjectStep( pStr = (JsonString*)sqlite3_aggregate_context(ctx, sizeof(*pStr)); if( pStr ){ if( pStr->zBuf==0 ){ - jsonInit(pStr, ctx); + jsonStringInit(pStr, ctx); jsonAppendChar(pStr, '{'); }else if( pStr->nUsed>1 ){ jsonAppendChar(pStr, ','); } pStr->pCtx = ctx; z = (const char*)sqlite3_value_text(argv[0]); - n = (u32)sqlite3_value_bytes(argv[0]); + n = sqlite3Strlen30(z); jsonAppendString(pStr, z, n); jsonAppendChar(pStr, ':'); - jsonAppendValue(pStr, argv[1]); + jsonAppendSqlValue(pStr, argv[1]); } } static void jsonObjectCompute(sqlite3_context *ctx, int isFinal){ JsonString *pStr; pStr = (JsonString*)sqlite3_aggregate_context(ctx, 0); if( pStr ){ + int flags; jsonAppendChar(pStr, '}'); - if( pStr->bErr ){ - if( pStr->bErr==1 ) sqlite3_result_error_nomem(ctx); - assert( pStr->bStatic ); + pStr->pCtx = ctx; + flags = SQLITE_PTR_TO_INT(sqlite3_user_data(ctx)); + if( pStr->eErr ){ + jsonReturnString(pStr, 0, 0); + return; + }else if( flags & JSON_BLOB ){ + jsonReturnStringAsBlob(pStr); + if( isFinal ){ + if( !pStr->bStatic ) sqlite3RCStrUnref(pStr->zBuf); + }else{ + jsonStringTrimOneChar(pStr); + } + return; }else if( isFinal ){ sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, - pStr->bStatic ? SQLITE_TRANSIENT : sqlite3_free); + pStr->bStatic ? SQLITE_TRANSIENT : + sqlite3RCStrUnref); pStr->bStatic = 1; }else{ sqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, SQLITE_TRANSIENT); - pStr->nUsed--; + jsonStringTrimOneChar(pStr); } }else{ sqlite3_result_text(ctx, "{}", 2, SQLITE_STATIC); @@ -195342,19 +207775,37 @@ static void jsonObjectFinal(sqlite3_context *ctx){ /**************************************************************************** ** The json_each virtual table ****************************************************************************/ +typedef struct JsonParent JsonParent; +struct JsonParent { + u32 iHead; /* Start of object or array */ + u32 iValue; /* Start of the value */ + u32 iEnd; /* First byte past the end */ + u32 nPath; /* Length of path */ + i64 iKey; /* Key for JSONB_ARRAY */ +}; + typedef struct JsonEachCursor JsonEachCursor; struct JsonEachCursor { sqlite3_vtab_cursor base; /* Base class - must be first */ u32 iRowid; /* The rowid */ - u32 iBegin; /* The first node of the scan */ - u32 i; /* Index in sParse.aNode[] of current row */ + u32 i; /* Index in sParse.aBlob[] of current row */ u32 iEnd; /* EOF when i equals or exceeds this value */ - u8 eType; /* Type of top-level element */ + u32 nRoot; /* Size of the root path in bytes */ + u8 eType; /* Type of the container for element i */ u8 bRecursive; /* True for json_tree(). False for json_each() */ - char *zJson; /* Input JSON */ - char *zRoot; /* Path by which to filter zJson */ + u32 nParent; /* Current nesting depth */ + u32 nParentAlloc; /* Space allocated for aParent[] */ + JsonParent *aParent; /* Parent elements of i */ + sqlite3 *db; /* Database connection */ + JsonString path; /* Current path */ JsonParse sParse; /* Parse of the input JSON */ }; +typedef struct JsonEachConnection JsonEachConnection; +struct JsonEachConnection { + sqlite3_vtab base; /* Base class - must be first */ + sqlite3 *db; /* Database connection */ +}; + /* Constructor for the json_each virtual table */ static int jsonEachConnect( @@ -195364,7 +207815,7 @@ static int jsonEachConnect( sqlite3_vtab **ppVtab, char **pzErr ){ - sqlite3_vtab *pNew; + JsonEachConnection *pNew; int rc; /* Column numbers */ @@ -195390,28 +207841,32 @@ static int jsonEachConnect( "CREATE TABLE x(key,value,type,atom,id,parent,fullkey,path," "json HIDDEN,root HIDDEN)"); if( rc==SQLITE_OK ){ - pNew = *ppVtab = sqlite3_malloc( sizeof(*pNew) ); + pNew = (JsonEachConnection*)sqlite3DbMallocZero(db, sizeof(*pNew)); + *ppVtab = (sqlite3_vtab*)pNew; if( pNew==0 ) return SQLITE_NOMEM; - memset(pNew, 0, sizeof(*pNew)); sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS); + pNew->db = db; } return rc; } /* destructor for json_each virtual table */ static int jsonEachDisconnect(sqlite3_vtab *pVtab){ - sqlite3_free(pVtab); + JsonEachConnection *p = (JsonEachConnection*)pVtab; + sqlite3DbFree(p->db, pVtab); return SQLITE_OK; } /* constructor for a JsonEachCursor object for json_each(). */ static int jsonEachOpenEach(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){ + JsonEachConnection *pVtab = (JsonEachConnection*)p; JsonEachCursor *pCur; UNUSED_PARAMETER(p); - pCur = sqlite3_malloc( sizeof(*pCur) ); + pCur = sqlite3DbMallocZero(pVtab->db, sizeof(*pCur)); if( pCur==0 ) return SQLITE_NOMEM; - memset(pCur, 0, sizeof(*pCur)); + pCur->db = pVtab->db; + jsonStringZero(&pCur->path); *ppCursor = &pCur->base; return SQLITE_OK; } @@ -195429,22 +207884,24 @@ static int jsonEachOpenTree(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){ /* Reset a JsonEachCursor back to its original state. Free any memory ** held. */ static void jsonEachCursorReset(JsonEachCursor *p){ - sqlite3_free(p->zJson); - sqlite3_free(p->zRoot); jsonParseReset(&p->sParse); + jsonStringReset(&p->path); + sqlite3DbFree(p->db, p->aParent); p->iRowid = 0; p->i = 0; + p->aParent = 0; + p->nParent = 0; + p->nParentAlloc = 0; p->iEnd = 0; p->eType = 0; - p->zJson = 0; - p->zRoot = 0; } /* Destructor for a jsonEachCursor object */ static int jsonEachClose(sqlite3_vtab_cursor *cur){ JsonEachCursor *p = (JsonEachCursor*)cur; jsonEachCursorReset(p); - sqlite3_free(cur); + + sqlite3DbFree(p->db, cur); return SQLITE_OK; } @@ -195455,198 +207912,230 @@ static int jsonEachEof(sqlite3_vtab_cursor *cur){ return p->i >= p->iEnd; } -/* Advance the cursor to the next element for json_tree() */ -static int jsonEachNext(sqlite3_vtab_cursor *cur){ - JsonEachCursor *p = (JsonEachCursor*)cur; - if( p->bRecursive ){ - if( p->sParse.aNode[p->i].jnFlags & JNODE_LABEL ) p->i++; - p->i++; - p->iRowid++; - if( p->i<p->iEnd ){ - u32 iUp = p->sParse.aUp[p->i]; - JsonNode *pUp = &p->sParse.aNode[iUp]; - p->eType = pUp->eType; - if( pUp->eType==JSON_ARRAY ){ - assert( pUp->eU==0 || pUp->eU==3 ); - testcase( pUp->eU==3 ); - VVA( pUp->eU = 3 ); - if( iUp==p->i-1 ){ - pUp->u.iKey = 0; - }else{ - pUp->u.iKey++; +/* +** If the cursor is currently pointing at the label of a object entry, +** then return the index of the value. For all other cases, return the +** current pointer position, which is the value. +*/ +static int jsonSkipLabel(JsonEachCursor *p){ + if( p->eType==JSONB_OBJECT ){ + u32 sz = 0; + u32 n = jsonbPayloadSize(&p->sParse, p->i, &sz); + return p->i + n + sz; + }else{ + return p->i; + } +} + +/* +** Append the path name for the current element. +*/ +static void jsonAppendPathName(JsonEachCursor *p){ + assert( p->nParent>0 ); + assert( p->eType==JSONB_ARRAY || p->eType==JSONB_OBJECT ); + if( p->eType==JSONB_ARRAY ){ + jsonPrintf(30, &p->path, "[%lld]", p->aParent[p->nParent-1].iKey); + }else{ + u32 n, sz = 0, k, i; + const char *z; + int needQuote = 0; + n = jsonbPayloadSize(&p->sParse, p->i, &sz); + k = p->i + n; + z = (const char*)&p->sParse.aBlob[k]; + if( sz==0 || !sqlite3Isalpha(z[0]) ){ + needQuote = 1; + }else{ + for(i=0; i<sz; i++){ + if( !sqlite3Isalnum(z[i]) ){ + needQuote = 1; + break; } } } - }else{ - switch( p->eType ){ - case JSON_ARRAY: { - p->i += jsonNodeSize(&p->sParse.aNode[p->i]); - p->iRowid++; - break; - } - case JSON_OBJECT: { - p->i += 1 + jsonNodeSize(&p->sParse.aNode[p->i+1]); - p->iRowid++; - break; - } - default: { - p->i = p->iEnd; - break; - } + if( needQuote ){ + jsonPrintf(sz+4,&p->path,".\"%.*s\"", sz, z); + }else{ + jsonPrintf(sz+2,&p->path,".%.*s", sz, z); } } - return SQLITE_OK; } -/* Append an object label to the JSON Path being constructed -** in pStr. -*/ -static void jsonAppendObjectPathElement( - JsonString *pStr, - JsonNode *pNode -){ - int jj, nn; - const char *z; - assert( pNode->eType==JSON_STRING ); - assert( pNode->jnFlags & JNODE_LABEL ); - assert( pNode->eU==1 ); - z = pNode->u.zJContent; - nn = pNode->n; - assert( nn>=2 ); - assert( z[0]=='"' ); - assert( z[nn-1]=='"' ); - if( nn>2 && sqlite3Isalpha(z[1]) ){ - for(jj=2; jj<nn-1 && sqlite3Isalnum(z[jj]); jj++){} - if( jj==nn-1 ){ - z++; - nn -= 2; +/* Advance the cursor to the next element for json_tree() */ +static int jsonEachNext(sqlite3_vtab_cursor *cur){ + JsonEachCursor *p = (JsonEachCursor*)cur; + int rc = SQLITE_OK; + if( p->bRecursive ){ + u8 x; + u8 levelChange = 0; + u32 n, sz = 0; + u32 i = jsonSkipLabel(p); + x = p->sParse.aBlob[i] & 0x0f; + n = jsonbPayloadSize(&p->sParse, i, &sz); + if( x==JSONB_OBJECT || x==JSONB_ARRAY ){ + JsonParent *pParent; + if( p->nParent>=p->nParentAlloc ){ + JsonParent *pNew; + u64 nNew; + nNew = p->nParentAlloc*2 + 3; + pNew = sqlite3DbRealloc(p->db, p->aParent, sizeof(JsonParent)*nNew); + if( pNew==0 ) return SQLITE_NOMEM; + p->nParentAlloc = (u32)nNew; + p->aParent = pNew; + } + levelChange = 1; + pParent = &p->aParent[p->nParent]; + pParent->iHead = p->i; + pParent->iValue = i; + pParent->iEnd = i + n + sz; + pParent->iKey = -1; + pParent->nPath = (u32)p->path.nUsed; + if( p->eType && p->nParent ){ + jsonAppendPathName(p); + if( p->path.eErr ) rc = SQLITE_NOMEM; + } + p->nParent++; + p->i = i + n; + }else{ + p->i = i + n + sz; + } + while( p->nParent>0 && p->i >= p->aParent[p->nParent-1].iEnd ){ + p->nParent--; + p->path.nUsed = p->aParent[p->nParent].nPath; + levelChange = 1; + } + if( levelChange ){ + if( p->nParent>0 ){ + JsonParent *pParent = &p->aParent[p->nParent-1]; + u32 iVal = pParent->iValue; + p->eType = p->sParse.aBlob[iVal] & 0x0f; + }else{ + p->eType = 0; + } } + }else{ + u32 n, sz = 0; + u32 i = jsonSkipLabel(p); + n = jsonbPayloadSize(&p->sParse, i, &sz); + p->i = i + n + sz; + } + if( p->eType==JSONB_ARRAY && p->nParent ){ + p->aParent[p->nParent-1].iKey++; } - jsonPrintf(nn+2, pStr, ".%.*s", nn, z); + p->iRowid++; + return rc; } -/* Append the name of the path for element i to pStr +/* Length of the path for rowid==0 in bRecursive mode. */ -static void jsonEachComputePath( - JsonEachCursor *p, /* The cursor */ - JsonString *pStr, /* Write the path here */ - u32 i /* Path to this element */ -){ - JsonNode *pNode, *pUp; - u32 iUp; - if( i==0 ){ - jsonAppendChar(pStr, '$'); - return; - } - iUp = p->sParse.aUp[i]; - jsonEachComputePath(p, pStr, iUp); - pNode = &p->sParse.aNode[i]; - pUp = &p->sParse.aNode[iUp]; - if( pUp->eType==JSON_ARRAY ){ - assert( pUp->eU==3 || (pUp->eU==0 && pUp->u.iKey==0) ); - testcase( pUp->eU==0 ); - jsonPrintf(30, pStr, "[%d]", pUp->u.iKey); - }else{ - assert( pUp->eType==JSON_OBJECT ); - if( (pNode->jnFlags & JNODE_LABEL)==0 ) pNode--; - jsonAppendObjectPathElement(pStr, pNode); +static int jsonEachPathLength(JsonEachCursor *p){ + u32 n = p->path.nUsed; + char *z = p->path.zBuf; + if( p->iRowid==0 && p->bRecursive && n>=2 ){ + while( n>1 ){ + n--; + if( z[n]=='[' || z[n]=='.' ){ + u32 x, sz = 0; + char cSaved = z[n]; + z[n] = 0; + assert( p->sParse.eEdit==0 ); + x = jsonLookupStep(&p->sParse, 0, z+1, 0); + z[n] = cSaved; + if( JSON_LOOKUP_ISERROR(x) ) continue; + if( x + jsonbPayloadSize(&p->sParse, x, &sz) == p->i ) break; + } + } } + return n; } /* Return the value of a column */ static int jsonEachColumn( sqlite3_vtab_cursor *cur, /* The cursor */ sqlite3_context *ctx, /* First argument to sqlite3_result_...() */ - int i /* Which column to return */ + int iColumn /* Which column to return */ ){ JsonEachCursor *p = (JsonEachCursor*)cur; - JsonNode *pThis = &p->sParse.aNode[p->i]; - switch( i ){ + switch( iColumn ){ case JEACH_KEY: { - if( p->i==0 ) break; - if( p->eType==JSON_OBJECT ){ - jsonReturn(pThis, ctx, 0); - }else if( p->eType==JSON_ARRAY ){ - u32 iKey; - if( p->bRecursive ){ - if( p->iRowid==0 ) break; - assert( p->sParse.aNode[p->sParse.aUp[p->i]].eU==3 ); - iKey = p->sParse.aNode[p->sParse.aUp[p->i]].u.iKey; + if( p->nParent==0 ){ + u32 n, j; + if( p->nRoot==1 ) break; + j = jsonEachPathLength(p); + n = p->nRoot - j; + if( n==0 ){ + break; + }else if( p->path.zBuf[j]=='[' ){ + i64 x; + sqlite3Atoi64(&p->path.zBuf[j+1], &x, n-1, SQLITE_UTF8); + sqlite3_result_int64(ctx, x); + }else if( p->path.zBuf[j+1]=='"' ){ + sqlite3_result_text(ctx, &p->path.zBuf[j+2], n-3, SQLITE_TRANSIENT); }else{ - iKey = p->iRowid; + sqlite3_result_text(ctx, &p->path.zBuf[j+1], n-1, SQLITE_TRANSIENT); } - sqlite3_result_int64(ctx, (sqlite3_int64)iKey); + break; + } + if( p->eType==JSONB_OBJECT ){ + jsonReturnFromBlob(&p->sParse, p->i, ctx, 1); + }else{ + assert( p->eType==JSONB_ARRAY ); + sqlite3_result_int64(ctx, p->aParent[p->nParent-1].iKey); } break; } case JEACH_VALUE: { - if( pThis->jnFlags & JNODE_LABEL ) pThis++; - jsonReturn(pThis, ctx, 0); + u32 i = jsonSkipLabel(p); + jsonReturnFromBlob(&p->sParse, i, ctx, 1); break; } case JEACH_TYPE: { - if( pThis->jnFlags & JNODE_LABEL ) pThis++; - sqlite3_result_text(ctx, jsonType[pThis->eType], -1, SQLITE_STATIC); + u32 i = jsonSkipLabel(p); + u8 eType = p->sParse.aBlob[i] & 0x0f; + sqlite3_result_text(ctx, jsonbType[eType], -1, SQLITE_STATIC); break; } case JEACH_ATOM: { - if( pThis->jnFlags & JNODE_LABEL ) pThis++; - if( pThis->eType>=JSON_ARRAY ) break; - jsonReturn(pThis, ctx, 0); + u32 i = jsonSkipLabel(p); + if( (p->sParse.aBlob[i] & 0x0f)<JSONB_ARRAY ){ + jsonReturnFromBlob(&p->sParse, i, ctx, 1); + } break; } case JEACH_ID: { - sqlite3_result_int64(ctx, - (sqlite3_int64)p->i + ((pThis->jnFlags & JNODE_LABEL)!=0)); + sqlite3_result_int64(ctx, (sqlite3_int64)p->i); break; } case JEACH_PARENT: { - if( p->i>p->iBegin && p->bRecursive ){ - sqlite3_result_int64(ctx, (sqlite3_int64)p->sParse.aUp[p->i]); + if( p->nParent>0 && p->bRecursive ){ + sqlite3_result_int64(ctx, p->aParent[p->nParent-1].iHead); } break; } case JEACH_FULLKEY: { - JsonString x; - jsonInit(&x, ctx); - if( p->bRecursive ){ - jsonEachComputePath(p, &x, p->i); - }else{ - if( p->zRoot ){ - jsonAppendRaw(&x, p->zRoot, (int)strlen(p->zRoot)); - }else{ - jsonAppendChar(&x, '$'); - } - if( p->eType==JSON_ARRAY ){ - jsonPrintf(30, &x, "[%d]", p->iRowid); - }else if( p->eType==JSON_OBJECT ){ - jsonAppendObjectPathElement(&x, pThis); - } - } - jsonResult(&x); + u64 nBase = p->path.nUsed; + if( p->nParent ) jsonAppendPathName(p); + sqlite3_result_text64(ctx, p->path.zBuf, p->path.nUsed, + SQLITE_TRANSIENT, SQLITE_UTF8); + p->path.nUsed = nBase; break; } case JEACH_PATH: { - if( p->bRecursive ){ - JsonString x; - jsonInit(&x, ctx); - jsonEachComputePath(p, &x, p->sParse.aUp[p->i]); - jsonResult(&x); - break; - } - /* For json_each() path and root are the same so fall through - ** into the root case */ - /* no break */ deliberate_fall_through + u32 n = jsonEachPathLength(p); + sqlite3_result_text64(ctx, p->path.zBuf, n, + SQLITE_TRANSIENT, SQLITE_UTF8); + break; } default: { - const char *zRoot = p->zRoot; - if( zRoot==0 ) zRoot = "$"; - sqlite3_result_text(ctx, zRoot, -1, SQLITE_STATIC); + sqlite3_result_text(ctx, p->path.zBuf, p->nRoot, SQLITE_STATIC); break; } case JEACH_JSON: { - assert( i==JEACH_JSON ); - sqlite3_result_text(ctx, p->sParse.zJson, -1, SQLITE_STATIC); + if( p->sParse.zJson==0 ){ + sqlite3_result_blob(ctx, p->sParse.aBlob, p->sParse.nBlob, + SQLITE_STATIC); + }else{ + sqlite3_result_text(ctx, p->sParse.zJson, -1, SQLITE_STATIC); + } break; } } @@ -195696,6 +208185,13 @@ static int jsonEachBestIndex( idxMask |= iMask; } } + if( pIdxInfo->nOrderBy>0 + && pIdxInfo->aOrderBy[0].iColumn<0 + && pIdxInfo->aOrderBy[0].desc==0 + ){ + pIdxInfo->orderByConsumed = 1; + } + if( (unusableMask & ~idxMask)!=0 ){ /* If there are any unusable constraints on JSON or ROOT, then reject ** this entire plan */ @@ -195730,78 +208226,97 @@ static int jsonEachFilter( int argc, sqlite3_value **argv ){ JsonEachCursor *p = (JsonEachCursor*)cur; - const char *z; const char *zRoot = 0; - sqlite3_int64 n; + u32 i, n, sz; UNUSED_PARAMETER(idxStr); UNUSED_PARAMETER(argc); jsonEachCursorReset(p); if( idxNum==0 ) return SQLITE_OK; - z = (const char*)sqlite3_value_text(argv[0]); - if( z==0 ) return SQLITE_OK; - n = sqlite3_value_bytes(argv[0]); - p->zJson = sqlite3_malloc64( n+1 ); - if( p->zJson==0 ) return SQLITE_NOMEM; - memcpy(p->zJson, z, (size_t)n+1); - if( jsonParse(&p->sParse, 0, p->zJson) ){ - int rc = SQLITE_NOMEM; - if( p->sParse.oom==0 ){ - sqlite3_free(cur->pVtab->zErrMsg); - cur->pVtab->zErrMsg = sqlite3_mprintf("malformed JSON"); - if( cur->pVtab->zErrMsg ) rc = SQLITE_ERROR; + memset(&p->sParse, 0, sizeof(p->sParse)); + p->sParse.nJPRef = 1; + p->sParse.db = p->db; + if( jsonFuncArgMightBeBinary(argv[0]) ){ + p->sParse.nBlob = sqlite3_value_bytes(argv[0]); + p->sParse.aBlob = (u8*)sqlite3_value_blob(argv[0]); + }else{ + p->sParse.zJson = (char*)sqlite3_value_text(argv[0]); + p->sParse.nJson = sqlite3_value_bytes(argv[0]); + if( p->sParse.zJson==0 ){ + p->i = p->iEnd = 0; + return SQLITE_OK; } - jsonEachCursorReset(p); - return rc; - }else if( p->bRecursive && jsonParseFindParents(&p->sParse) ){ - jsonEachCursorReset(p); - return SQLITE_NOMEM; - }else{ - JsonNode *pNode = 0; - if( idxNum==3 ){ - const char *zErr = 0; - zRoot = (const char*)sqlite3_value_text(argv[1]); - if( zRoot==0 ) return SQLITE_OK; - n = sqlite3_value_bytes(argv[1]); - p->zRoot = sqlite3_malloc64( n+1 ); - if( p->zRoot==0 ) return SQLITE_NOMEM; - memcpy(p->zRoot, zRoot, (size_t)n+1); - if( zRoot[0]!='$' ){ - zErr = zRoot; - }else{ - pNode = jsonLookupStep(&p->sParse, 0, p->zRoot+1, 0, &zErr); + if( jsonConvertTextToBlob(&p->sParse, 0) ){ + if( p->sParse.oom ){ + return SQLITE_NOMEM; } - if( zErr ){ + goto json_each_malformed_input; + } + } + if( idxNum==3 ){ + zRoot = (const char*)sqlite3_value_text(argv[1]); + if( zRoot==0 ) return SQLITE_OK; + if( zRoot[0]!='$' ){ + sqlite3_free(cur->pVtab->zErrMsg); + cur->pVtab->zErrMsg = jsonBadPathError(0, zRoot); + jsonEachCursorReset(p); + return cur->pVtab->zErrMsg ? SQLITE_ERROR : SQLITE_NOMEM; + } + p->nRoot = sqlite3Strlen30(zRoot); + if( zRoot[1]==0 ){ + i = p->i = 0; + p->eType = 0; + }else{ + i = jsonLookupStep(&p->sParse, 0, zRoot+1, 0); + if( JSON_LOOKUP_ISERROR(i) ){ + if( i==JSON_LOOKUP_NOTFOUND ){ + p->i = 0; + p->eType = 0; + p->iEnd = 0; + return SQLITE_OK; + } sqlite3_free(cur->pVtab->zErrMsg); - cur->pVtab->zErrMsg = jsonPathSyntaxError(zErr); + cur->pVtab->zErrMsg = jsonBadPathError(0, zRoot); jsonEachCursorReset(p); return cur->pVtab->zErrMsg ? SQLITE_ERROR : SQLITE_NOMEM; - }else if( pNode==0 ){ - return SQLITE_OK; } - }else{ - pNode = p->sParse.aNode; - } - p->iBegin = p->i = (int)(pNode - p->sParse.aNode); - p->eType = pNode->eType; - if( p->eType>=JSON_ARRAY ){ - assert( pNode->eU==0 ); - VVA( pNode->eU = 3 ); - pNode->u.iKey = 0; - p->iEnd = p->i + pNode->n + 1; - if( p->bRecursive ){ - p->eType = p->sParse.aNode[p->sParse.aUp[p->i]].eType; - if( p->i>0 && (p->sParse.aNode[p->i-1].jnFlags & JNODE_LABEL)!=0 ){ - p->i--; - } + if( p->sParse.iLabel ){ + p->i = p->sParse.iLabel; + p->eType = JSONB_OBJECT; }else{ - p->i++; - } - }else{ - p->iEnd = p->i+1; - } + p->i = i; + p->eType = JSONB_ARRAY; + } + } + jsonAppendRaw(&p->path, zRoot, p->nRoot); + }else{ + i = p->i = 0; + p->eType = 0; + p->nRoot = 1; + jsonAppendRaw(&p->path, "$", 1); + } + p->nParent = 0; + n = jsonbPayloadSize(&p->sParse, i, &sz); + p->iEnd = i+n+sz; + if( (p->sParse.aBlob[i] & 0x0f)>=JSONB_ARRAY && !p->bRecursive ){ + p->i = i + n; + p->eType = p->sParse.aBlob[i] & 0x0f; + p->aParent = sqlite3DbMallocZero(p->db, sizeof(JsonParent)); + if( p->aParent==0 ) return SQLITE_NOMEM; + p->nParent = 1; + p->nParentAlloc = 1; + p->aParent[0].iKey = 0; + p->aParent[0].iEnd = p->iEnd; + p->aParent[0].iHead = p->i; + p->aParent[0].iValue = i; } return SQLITE_OK; + +json_each_malformed_input: + sqlite3_free(cur->pVtab->zErrMsg); + cur->pVtab->zErrMsg = sqlite3_mprintf("malformed JSON"); + jsonEachCursorReset(p); + return cur->pVtab->zErrMsg ? SQLITE_ERROR : SQLITE_NOMEM; } /* The methods of the json_each virtual table */ @@ -195829,7 +208344,8 @@ static sqlite3_module jsonEachModule = { 0, /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ - 0 /* xShadowName */ + 0, /* xShadowName */ + 0 /* xIntegrity */ }; /* The methods of the json_tree virtual table. */ @@ -195857,7 +208373,8 @@ static sqlite3_module jsonTreeModule = { 0, /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ - 0 /* xShadowName */ + 0, /* xShadowName */ + 0 /* xIntegrity */ }; #endif /* SQLITE_OMIT_VIRTUALTABLE */ #endif /* !defined(SQLITE_OMIT_JSON) */ @@ -195868,33 +208385,57 @@ static sqlite3_module jsonTreeModule = { SQLITE_PRIVATE void sqlite3RegisterJsonFunctions(void){ #ifndef SQLITE_OMIT_JSON static FuncDef aJsonFunc[] = { - JFUNCTION(json, 1, 0, jsonRemoveFunc), - JFUNCTION(json_array, -1, 0, jsonArrayFunc), - JFUNCTION(json_array_length, 1, 0, jsonArrayLengthFunc), - JFUNCTION(json_array_length, 2, 0, jsonArrayLengthFunc), - JFUNCTION(json_extract, -1, 0, jsonExtractFunc), - JFUNCTION(->, 2, JSON_JSON, jsonExtractFunc), - JFUNCTION(->>, 2, JSON_SQL, jsonExtractFunc), - JFUNCTION(json_insert, -1, 0, jsonSetFunc), - JFUNCTION(json_object, -1, 0, jsonObjectFunc), - JFUNCTION(json_patch, 2, 0, jsonPatchFunc), - JFUNCTION(json_quote, 1, 0, jsonQuoteFunc), - JFUNCTION(json_remove, -1, 0, jsonRemoveFunc), - JFUNCTION(json_replace, -1, 0, jsonReplaceFunc), - JFUNCTION(json_set, -1, JSON_ISSET, jsonSetFunc), - JFUNCTION(json_type, 1, 0, jsonTypeFunc), - JFUNCTION(json_type, 2, 0, jsonTypeFunc), - JFUNCTION(json_valid, 1, 0, jsonValidFunc), + /* sqlite3_result_subtype() ----, ,--- sqlite3_value_subtype() */ + /* | | */ + /* Uses cache ------, | | ,---- Returns JSONB */ + /* | | | | */ + /* Number of arguments ---, | | | | ,--- Flags */ + /* | | | | | | */ + JFUNCTION(json, 1,1,1, 0,0,0, jsonRemoveFunc), + JFUNCTION(jsonb, 1,1,0, 0,1,0, jsonRemoveFunc), + JFUNCTION(json_array, -1,0,1, 1,0,0, jsonArrayFunc), + JFUNCTION(jsonb_array, -1,0,1, 1,1,0, jsonArrayFunc), + JFUNCTION(json_array_length, 1,1,0, 0,0,0, jsonArrayLengthFunc), + JFUNCTION(json_array_length, 2,1,0, 0,0,0, jsonArrayLengthFunc), + JFUNCTION(json_error_position,1,1,0, 0,0,0, jsonErrorFunc), + JFUNCTION(json_extract, -1,1,1, 0,0,0, jsonExtractFunc), + JFUNCTION(jsonb_extract, -1,1,0, 0,1,0, jsonExtractFunc), + JFUNCTION(->, 2,1,1, 0,0,JSON_JSON, jsonExtractFunc), + JFUNCTION(->>, 2,1,0, 0,0,JSON_SQL, jsonExtractFunc), + JFUNCTION(json_insert, -1,1,1, 1,0,0, jsonSetFunc), + JFUNCTION(jsonb_insert, -1,1,0, 1,1,0, jsonSetFunc), + JFUNCTION(json_object, -1,0,1, 1,0,0, jsonObjectFunc), + JFUNCTION(jsonb_object, -1,0,1, 1,1,0, jsonObjectFunc), + JFUNCTION(json_patch, 2,1,1, 0,0,0, jsonPatchFunc), + JFUNCTION(jsonb_patch, 2,1,0, 0,1,0, jsonPatchFunc), + JFUNCTION(json_quote, 1,0,1, 1,0,0, jsonQuoteFunc), + JFUNCTION(json_remove, -1,1,1, 0,0,0, jsonRemoveFunc), + JFUNCTION(jsonb_remove, -1,1,0, 0,1,0, jsonRemoveFunc), + JFUNCTION(json_replace, -1,1,1, 1,0,0, jsonReplaceFunc), + JFUNCTION(jsonb_replace, -1,1,0, 1,1,0, jsonReplaceFunc), + JFUNCTION(json_set, -1,1,1, 1,0,JSON_ISSET, jsonSetFunc), + JFUNCTION(jsonb_set, -1,1,0, 1,1,JSON_ISSET, jsonSetFunc), + JFUNCTION(json_type, 1,1,0, 0,0,0, jsonTypeFunc), + JFUNCTION(json_type, 2,1,0, 0,0,0, jsonTypeFunc), + JFUNCTION(json_valid, 1,1,0, 0,0,0, jsonValidFunc), + JFUNCTION(json_valid, 2,1,0, 0,0,0, jsonValidFunc), #if SQLITE_DEBUG - JFUNCTION(json_parse, 1, 0, jsonParseFunc), - JFUNCTION(json_test1, 1, 0, jsonTest1Func), + JFUNCTION(json_parse, 1,1,0, 0,0,0, jsonParseFunc), #endif WAGGREGATE(json_group_array, 1, 0, 0, jsonArrayStep, jsonArrayFinal, jsonArrayValue, jsonGroupInverse, - SQLITE_SUBTYPE|SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS), + SQLITE_SUBTYPE|SQLITE_RESULT_SUBTYPE|SQLITE_UTF8| + SQLITE_DETERMINISTIC), + WAGGREGATE(jsonb_group_array, 1, JSON_BLOB, 0, + jsonArrayStep, jsonArrayFinal, jsonArrayValue, jsonGroupInverse, + SQLITE_SUBTYPE|SQLITE_RESULT_SUBTYPE|SQLITE_UTF8|SQLITE_DETERMINISTIC), WAGGREGATE(json_group_object, 2, 0, 0, jsonObjectStep, jsonObjectFinal, jsonObjectValue, jsonGroupInverse, - SQLITE_SUBTYPE|SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS) + SQLITE_SUBTYPE|SQLITE_RESULT_SUBTYPE|SQLITE_UTF8|SQLITE_DETERMINISTIC), + WAGGREGATE(jsonb_group_object,2, JSON_BLOB, 0, + jsonObjectStep, jsonObjectFinal, jsonObjectValue, jsonGroupInverse, + SQLITE_SUBTYPE|SQLITE_RESULT_SUBTYPE|SQLITE_UTF8| + SQLITE_DETERMINISTIC) }; sqlite3InsertBuiltinFuncs(aJsonFunc, ArraySize(aJsonFunc)); #endif @@ -196021,6 +208562,11 @@ typedef unsigned int u32; #endif #endif /* !defined(SQLITE_AMALGAMATION) */ +/* Macro to check for 4-byte alignment. Only used inside of assert() */ +#ifdef SQLITE_DEBUG +# define FOUR_BYTE_ALIGNED(X) ((((char*)(X) - (char*)0) & 3)==0) +#endif + /* #include <string.h> */ /* #include <stdio.h> */ /* #include <assert.h> */ @@ -196086,6 +208632,7 @@ struct Rtree { int iDepth; /* Current depth of the r-tree structure */ char *zDb; /* Name of database containing r-tree table */ char *zName; /* Name of r-tree table */ + char *zNodeName; /* Name of the %_node table */ u32 nBusy; /* Current number of users of this structure */ i64 nRowEst; /* Estimated number of rows in this table */ u32 nCursor; /* Number of open cursors */ @@ -196098,7 +208645,6 @@ struct Rtree { ** headed by the node (leaf nodes have RtreeNode.iNode==0). */ RtreeNode *pDeleted; - int iReinsertHeight; /* Height of sub-trees Reinsert() has run on */ /* Blob I/O on xxx_node */ sqlite3_blob *pNodeBlob; @@ -196395,17 +208941,23 @@ struct RtreeMatchArg { ** -DSQLITE_RUNTIME_BYTEORDER=1 is set, then byte-order is determined ** at run-time. */ -#ifndef SQLITE_BYTEORDER -#if defined(i386) || defined(__i386__) || defined(_M_IX86) || \ - defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || \ - defined(_M_AMD64) || defined(_M_ARM) || defined(__x86) || \ - defined(__arm__) -# define SQLITE_BYTEORDER 1234 -#elif defined(sparc) || defined(__ppc__) -# define SQLITE_BYTEORDER 4321 -#else -# define SQLITE_BYTEORDER 0 /* 0 means "unknown at compile-time" */ -#endif +#ifndef SQLITE_BYTEORDER /* Replicate changes at tag-20230904a */ +# if defined(__BYTE_ORDER__) && __BYTE_ORDER__==__ORDER_BIG_ENDIAN__ +# define SQLITE_BYTEORDER 4321 +# elif defined(__BYTE_ORDER__) && __BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__ +# define SQLITE_BYTEORDER 1234 +# elif defined(__BIG_ENDIAN__) && __BIG_ENDIAN__==1 +# define SQLITE_BYTEORDER 4321 +# elif defined(i386) || defined(__i386__) || defined(_M_IX86) || \ + defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || \ + defined(_M_AMD64) || defined(_M_ARM) || defined(__x86) || \ + defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64) +# define SQLITE_BYTEORDER 1234 +# elif defined(sparc) || defined(__ARMEB__) || defined(__AARCH64EB__) +# define SQLITE_BYTEORDER 4321 +# else +# define SQLITE_BYTEORDER 0 +# endif #endif @@ -196426,7 +208978,7 @@ static int readInt16(u8 *p){ return (p[0]<<8) + p[1]; } static void readCoord(u8 *p, RtreeCoord *pCoord){ - assert( ((((char*)p) - (char*)0)&3)==0 ); /* p is always 4-byte aligned */ + assert( FOUR_BYTE_ALIGNED(p) ); #if SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300 pCoord->u = _byteswap_ulong(*(u32*)p); #elif SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000 @@ -196480,7 +209032,7 @@ static void writeInt16(u8 *p, int i){ } static int writeCoord(u8 *p, RtreeCoord *pCoord){ u32 i; - assert( ((((char*)p) - (char*)0)&3)==0 ); /* p is always 4-byte aligned */ + assert( FOUR_BYTE_ALIGNED(p) ); assert( sizeof(RtreeCoord)==4 ); assert( sizeof(u32)==4 ); #if SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000 @@ -196631,7 +209183,7 @@ static int nodeAcquire( ** increase its reference count and return it. */ if( (pNode = nodeHashLookup(pRtree, iNode))!=0 ){ - if( pParent && pParent!=pNode->pParent ){ + if( pParent && ALWAYS(pParent!=pNode->pParent) ){ RTREE_IS_CORRUPT(pRtree); return SQLITE_CORRUPT_VTAB; } @@ -196651,11 +209203,9 @@ static int nodeAcquire( } } if( pRtree->pNodeBlob==0 ){ - char *zTab = sqlite3_mprintf("%s_node", pRtree->zName); - if( zTab==0 ) return SQLITE_NOMEM; - rc = sqlite3_blob_open(pRtree->db, pRtree->zDb, zTab, "data", iNode, 0, + rc = sqlite3_blob_open(pRtree->db, pRtree->zDb, pRtree->zNodeName, + "data", iNode, 0, &pRtree->pNodeBlob); - sqlite3_free(zTab); } if( rc ){ nodeBlobReset(pRtree); @@ -197208,7 +209758,7 @@ static void rtreeNonleafConstraint( assert(p->op==RTREE_LE || p->op==RTREE_LT || p->op==RTREE_GE || p->op==RTREE_GT || p->op==RTREE_EQ || p->op==RTREE_TRUE || p->op==RTREE_FALSE ); - assert( ((((char*)pCellData) - (char*)0)&3)==0 ); /* 4-byte aligned */ + assert( FOUR_BYTE_ALIGNED(pCellData) ); switch( p->op ){ case RTREE_TRUE: return; /* Always satisfied */ case RTREE_FALSE: break; /* Never satisfied */ @@ -197261,7 +209811,7 @@ static void rtreeLeafConstraint( || p->op==RTREE_GT || p->op==RTREE_EQ || p->op==RTREE_TRUE || p->op==RTREE_FALSE ); pCellData += 8 + p->iCoord*4; - assert( ((((char*)pCellData) - (char*)0)&3)==0 ); /* 4-byte aligned */ + assert( FOUR_BYTE_ALIGNED(pCellData) ); RTREE_DECODE_COORD(eInt, pCellData, xN); switch( p->op ){ case RTREE_TRUE: return; /* Always satisfied */ @@ -197831,7 +210381,20 @@ static int rtreeFilter( p->pInfo->nCoord = pRtree->nDim2; p->pInfo->anQueue = pCsr->anQueue; p->pInfo->mxLevel = pRtree->iDepth + 1; - }else if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){ + }else if( eType==SQLITE_INTEGER ){ + sqlite3_int64 iVal = sqlite3_value_int64(argv[ii]); +#ifdef SQLITE_RTREE_INT_ONLY + p->u.rValue = iVal; +#else + p->u.rValue = (double)iVal; + if( iVal>=((sqlite3_int64)1)<<48 + || iVal<=-(((sqlite3_int64)1)<<48) + ){ + if( p->op==RTREE_LT ) p->op = RTREE_LE; + if( p->op==RTREE_GT ) p->op = RTREE_GE; + } +#endif + }else if( eType==SQLITE_FLOAT ){ #ifdef SQLITE_RTREE_INT_ONLY p->u.rValue = sqlite3_value_int64(argv[ii]); #else @@ -197962,11 +210525,12 @@ static int rtreeBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){ || p->op==SQLITE_INDEX_CONSTRAINT_MATCH) ){ u8 op; + u8 doOmit = 1; switch( p->op ){ - case SQLITE_INDEX_CONSTRAINT_EQ: op = RTREE_EQ; break; - case SQLITE_INDEX_CONSTRAINT_GT: op = RTREE_GT; break; + case SQLITE_INDEX_CONSTRAINT_EQ: op = RTREE_EQ; doOmit = 0; break; + case SQLITE_INDEX_CONSTRAINT_GT: op = RTREE_GT; doOmit = 0; break; case SQLITE_INDEX_CONSTRAINT_LE: op = RTREE_LE; break; - case SQLITE_INDEX_CONSTRAINT_LT: op = RTREE_LT; break; + case SQLITE_INDEX_CONSTRAINT_LT: op = RTREE_LT; doOmit = 0; break; case SQLITE_INDEX_CONSTRAINT_GE: op = RTREE_GE; break; case SQLITE_INDEX_CONSTRAINT_MATCH: op = RTREE_MATCH; break; default: op = 0; break; @@ -197975,15 +210539,19 @@ static int rtreeBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){ zIdxStr[iIdx++] = op; zIdxStr[iIdx++] = (char)(p->iColumn - 1 + '0'); pIdxInfo->aConstraintUsage[ii].argvIndex = (iIdx/2); - pIdxInfo->aConstraintUsage[ii].omit = 1; + pIdxInfo->aConstraintUsage[ii].omit = doOmit; } } } pIdxInfo->idxNum = 2; pIdxInfo->needToFreeIdxStr = 1; - if( iIdx>0 && 0==(pIdxInfo->idxStr = sqlite3_mprintf("%s", zIdxStr)) ){ - return SQLITE_NOMEM; + if( iIdx>0 ){ + pIdxInfo->idxStr = sqlite3_malloc( iIdx+1 ); + if( pIdxInfo->idxStr==0 ){ + return SQLITE_NOMEM; + } + memcpy(pIdxInfo->idxStr, zIdxStr, iIdx+1); } nRow = pRtree->nRowEst >> (iIdx/2); @@ -198062,31 +210630,22 @@ static void cellUnion(Rtree *pRtree, RtreeCell *p1, RtreeCell *p2){ */ static int cellContains(Rtree *pRtree, RtreeCell *p1, RtreeCell *p2){ int ii; - int isInt = (pRtree->eCoordType==RTREE_COORD_INT32); - for(ii=0; ii<pRtree->nDim2; ii+=2){ - RtreeCoord *a1 = &p1->aCoord[ii]; - RtreeCoord *a2 = &p2->aCoord[ii]; - if( (!isInt && (a2[0].f<a1[0].f || a2[1].f>a1[1].f)) - || ( isInt && (a2[0].i<a1[0].i || a2[1].i>a1[1].i)) - ){ - return 0; + if( pRtree->eCoordType==RTREE_COORD_INT32 ){ + for(ii=0; ii<pRtree->nDim2; ii+=2){ + RtreeCoord *a1 = &p1->aCoord[ii]; + RtreeCoord *a2 = &p2->aCoord[ii]; + if( a2[0].i<a1[0].i || a2[1].i>a1[1].i ) return 0; + } + }else{ + for(ii=0; ii<pRtree->nDim2; ii+=2){ + RtreeCoord *a1 = &p1->aCoord[ii]; + RtreeCoord *a2 = &p2->aCoord[ii]; + if( a2[0].f<a1[0].f || a2[1].f>a1[1].f ) return 0; } } return 1; } -/* -** Return the amount cell p would grow by if it were unioned with pCell. -*/ -static RtreeDValue cellGrowth(Rtree *pRtree, RtreeCell *p, RtreeCell *pCell){ - RtreeDValue area; - RtreeCell cell; - memcpy(&cell, p, sizeof(RtreeCell)); - area = cellArea(pRtree, &cell); - cellUnion(pRtree, &cell, pCell); - return (cellArea(pRtree, &cell)-area); -} - static RtreeDValue cellOverlap( Rtree *pRtree, RtreeCell *p, @@ -198133,38 +210692,52 @@ static int ChooseLeaf( for(ii=0; rc==SQLITE_OK && ii<(pRtree->iDepth-iHeight); ii++){ int iCell; sqlite3_int64 iBest = 0; - + int bFound = 0; RtreeDValue fMinGrowth = RTREE_ZERO; RtreeDValue fMinArea = RTREE_ZERO; - int nCell = NCELL(pNode); - RtreeCell cell; RtreeNode *pChild = 0; - RtreeCell *aCell = 0; - - /* Select the child node which will be enlarged the least if pCell - ** is inserted into it. Resolve ties by choosing the entry with - ** the smallest area. + /* First check to see if there is are any cells in pNode that completely + ** contains pCell. If two or more cells in pNode completely contain pCell + ** then pick the smallest. */ for(iCell=0; iCell<nCell; iCell++){ - int bBest = 0; - RtreeDValue growth; - RtreeDValue area; + RtreeCell cell; nodeGetCell(pRtree, pNode, iCell, &cell); - growth = cellGrowth(pRtree, &cell, pCell); - area = cellArea(pRtree, &cell); - if( iCell==0||growth<fMinGrowth||(growth==fMinGrowth && area<fMinArea) ){ - bBest = 1; + if( cellContains(pRtree, &cell, pCell) ){ + RtreeDValue area = cellArea(pRtree, &cell); + if( bFound==0 || area<fMinArea ){ + iBest = cell.iRowid; + fMinArea = area; + bFound = 1; + } } - if( bBest ){ - fMinGrowth = growth; - fMinArea = area; - iBest = cell.iRowid; + } + if( !bFound ){ + /* No cells of pNode will completely contain pCell. So pick the + ** cell of pNode that grows by the least amount when pCell is added. + ** Break ties by selecting the smaller cell. + */ + for(iCell=0; iCell<nCell; iCell++){ + RtreeCell cell; + RtreeDValue growth; + RtreeDValue area; + nodeGetCell(pRtree, pNode, iCell, &cell); + area = cellArea(pRtree, &cell); + cellUnion(pRtree, &cell, pCell); + growth = cellArea(pRtree, &cell)-area; + if( iCell==0 + || growth<fMinGrowth + || (growth==fMinGrowth && area<fMinArea) + ){ + fMinGrowth = growth; + fMinArea = area; + iBest = cell.iRowid; + } } } - sqlite3_free(aCell); rc = nodeAcquire(pRtree, iBest, pNode, &pChild); nodeRelease(pRtree, pNode); pNode = pChild; @@ -198237,77 +210810,6 @@ static int parentWrite(Rtree *pRtree, sqlite3_int64 iNode, sqlite3_int64 iPar){ static int rtreeInsertCell(Rtree *, RtreeNode *, RtreeCell *, int); -/* -** Arguments aIdx, aDistance and aSpare all point to arrays of size -** nIdx. The aIdx array contains the set of integers from 0 to -** (nIdx-1) in no particular order. This function sorts the values -** in aIdx according to the indexed values in aDistance. For -** example, assuming the inputs: -** -** aIdx = { 0, 1, 2, 3 } -** aDistance = { 5.0, 2.0, 7.0, 6.0 } -** -** this function sets the aIdx array to contain: -** -** aIdx = { 0, 1, 2, 3 } -** -** The aSpare array is used as temporary working space by the -** sorting algorithm. -*/ -static void SortByDistance( - int *aIdx, - int nIdx, - RtreeDValue *aDistance, - int *aSpare -){ - if( nIdx>1 ){ - int iLeft = 0; - int iRight = 0; - - int nLeft = nIdx/2; - int nRight = nIdx-nLeft; - int *aLeft = aIdx; - int *aRight = &aIdx[nLeft]; - - SortByDistance(aLeft, nLeft, aDistance, aSpare); - SortByDistance(aRight, nRight, aDistance, aSpare); - - memcpy(aSpare, aLeft, sizeof(int)*nLeft); - aLeft = aSpare; - - while( iLeft<nLeft || iRight<nRight ){ - if( iLeft==nLeft ){ - aIdx[iLeft+iRight] = aRight[iRight]; - iRight++; - }else if( iRight==nRight ){ - aIdx[iLeft+iRight] = aLeft[iLeft]; - iLeft++; - }else{ - RtreeDValue fLeft = aDistance[aLeft[iLeft]]; - RtreeDValue fRight = aDistance[aRight[iRight]]; - if( fLeft<fRight ){ - aIdx[iLeft+iRight] = aLeft[iLeft]; - iLeft++; - }else{ - aIdx[iLeft+iRight] = aRight[iRight]; - iRight++; - } - } - } - -#if 0 - /* Check that the sort worked */ - { - int jj; - for(jj=1; jj<nIdx; jj++){ - RtreeDValue left = aDistance[aIdx[jj-1]]; - RtreeDValue right = aDistance[aIdx[jj]]; - assert( left<=right ); - } - } -#endif - } -} /* ** Arguments aIdx, aCell and aSpare all point to arrays of size @@ -198792,107 +211294,6 @@ static int deleteCell(Rtree *pRtree, RtreeNode *pNode, int iCell, int iHeight){ return rc; } -static int Reinsert( - Rtree *pRtree, - RtreeNode *pNode, - RtreeCell *pCell, - int iHeight -){ - int *aOrder; - int *aSpare; - RtreeCell *aCell; - RtreeDValue *aDistance; - int nCell; - RtreeDValue aCenterCoord[RTREE_MAX_DIMENSIONS]; - int iDim; - int ii; - int rc = SQLITE_OK; - int n; - - memset(aCenterCoord, 0, sizeof(RtreeDValue)*RTREE_MAX_DIMENSIONS); - - nCell = NCELL(pNode)+1; - n = (nCell+1)&(~1); - - /* Allocate the buffers used by this operation. The allocation is - ** relinquished before this function returns. - */ - aCell = (RtreeCell *)sqlite3_malloc64(n * ( - sizeof(RtreeCell) + /* aCell array */ - sizeof(int) + /* aOrder array */ - sizeof(int) + /* aSpare array */ - sizeof(RtreeDValue) /* aDistance array */ - )); - if( !aCell ){ - return SQLITE_NOMEM; - } - aOrder = (int *)&aCell[n]; - aSpare = (int *)&aOrder[n]; - aDistance = (RtreeDValue *)&aSpare[n]; - - for(ii=0; ii<nCell; ii++){ - if( ii==(nCell-1) ){ - memcpy(&aCell[ii], pCell, sizeof(RtreeCell)); - }else{ - nodeGetCell(pRtree, pNode, ii, &aCell[ii]); - } - aOrder[ii] = ii; - for(iDim=0; iDim<pRtree->nDim; iDim++){ - aCenterCoord[iDim] += DCOORD(aCell[ii].aCoord[iDim*2]); - aCenterCoord[iDim] += DCOORD(aCell[ii].aCoord[iDim*2+1]); - } - } - for(iDim=0; iDim<pRtree->nDim; iDim++){ - aCenterCoord[iDim] = (aCenterCoord[iDim]/(nCell*(RtreeDValue)2)); - } - - for(ii=0; ii<nCell; ii++){ - aDistance[ii] = RTREE_ZERO; - for(iDim=0; iDim<pRtree->nDim; iDim++){ - RtreeDValue coord = (DCOORD(aCell[ii].aCoord[iDim*2+1]) - - DCOORD(aCell[ii].aCoord[iDim*2])); - aDistance[ii] += (coord-aCenterCoord[iDim])*(coord-aCenterCoord[iDim]); - } - } - - SortByDistance(aOrder, nCell, aDistance, aSpare); - nodeZero(pRtree, pNode); - - for(ii=0; rc==SQLITE_OK && ii<(nCell-(RTREE_MINCELLS(pRtree)+1)); ii++){ - RtreeCell *p = &aCell[aOrder[ii]]; - nodeInsertCell(pRtree, pNode, p); - if( p->iRowid==pCell->iRowid ){ - if( iHeight==0 ){ - rc = rowidWrite(pRtree, p->iRowid, pNode->iNode); - }else{ - rc = parentWrite(pRtree, p->iRowid, pNode->iNode); - } - } - } - if( rc==SQLITE_OK ){ - rc = fixBoundingBox(pRtree, pNode); - } - for(; rc==SQLITE_OK && ii<nCell; ii++){ - /* Find a node to store this cell in. pNode->iNode currently contains - ** the height of the sub-tree headed by the cell. - */ - RtreeNode *pInsert; - RtreeCell *p = &aCell[aOrder[ii]]; - rc = ChooseLeaf(pRtree, p, iHeight, &pInsert); - if( rc==SQLITE_OK ){ - int rc2; - rc = rtreeInsertCell(pRtree, pInsert, p, iHeight); - rc2 = nodeRelease(pRtree, pInsert); - if( rc==SQLITE_OK ){ - rc = rc2; - } - } - } - - sqlite3_free(aCell); - return rc; -} - /* ** Insert cell pCell into node pNode. Node pNode is the head of a ** subtree iHeight high (leaf nodes have iHeight==0). @@ -198913,12 +211314,7 @@ static int rtreeInsertCell( } } if( nodeInsertCell(pRtree, pNode, pCell) ){ - if( iHeight<=pRtree->iReinsertHeight || pNode->iNode==1){ - rc = SplitNode(pRtree, pNode, pCell, iHeight); - }else{ - pRtree->iReinsertHeight = iHeight; - rc = Reinsert(pRtree, pNode, pCell, iHeight); - } + rc = SplitNode(pRtree, pNode, pCell, iHeight); }else{ rc = AdjustTree(pRtree, pNode, pCell); if( ALWAYS(rc==SQLITE_OK) ){ @@ -199160,7 +211556,7 @@ static int rtreeUpdate( rtreeReference(pRtree); assert(nData>=1); - cell.iRowid = 0; /* Used only to suppress a compiler warning */ + memset(&cell, 0, sizeof(cell)); /* Constraint handling. A write operation on an r-tree table may return ** SQLITE_CONSTRAINT for two reasons: @@ -199261,7 +211657,6 @@ static int rtreeUpdate( } if( rc==SQLITE_OK ){ int rc2; - pRtree->iReinsertHeight = -1; rc = rtreeInsertCell(pRtree, pLeaf, &cell, 0); rc2 = nodeRelease(pRtree, pLeaf); if( rc==SQLITE_OK ){ @@ -199402,8 +211797,11 @@ static int rtreeShadowName(const char *zName){ return 0; } +/* Forward declaration */ +static int rtreeIntegrity(sqlite3_vtab*, const char*, const char*, int, char**); + static sqlite3_module rtreeModule = { - 3, /* iVersion */ + 4, /* iVersion */ rtreeCreate, /* xCreate - create a table */ rtreeConnect, /* xConnect - connect to an existing table */ rtreeBestIndex, /* xBestIndex - Determine search strategy */ @@ -199426,7 +211824,8 @@ static sqlite3_module rtreeModule = { rtreeSavepoint, /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ - rtreeShadowName /* xShadowName */ + rtreeShadowName, /* xShadowName */ + rtreeIntegrity /* xIntegrity */ }; static int rtreeSqlInit( @@ -199519,7 +211918,7 @@ static int rtreeSqlInit( } sqlite3_free(zSql); } - if( pRtree->nAux ){ + if( pRtree->nAux && rc!=SQLITE_NOMEM ){ pRtree->zReadAuxSql = sqlite3_mprintf( "SELECT * FROM \"%w\".\"%w_rowid\" WHERE rowid=?1", zDb, zPrefix); @@ -199682,22 +212081,27 @@ static int rtreeInit( } sqlite3_vtab_config(db, SQLITE_VTAB_CONSTRAINT_SUPPORT, 1); + sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS); + /* Allocate the sqlite3_vtab structure */ nDb = (int)strlen(argv[1]); nName = (int)strlen(argv[2]); - pRtree = (Rtree *)sqlite3_malloc64(sizeof(Rtree)+nDb+nName+2); + pRtree = (Rtree *)sqlite3_malloc64(sizeof(Rtree)+nDb+nName*2+8); if( !pRtree ){ return SQLITE_NOMEM; } - memset(pRtree, 0, sizeof(Rtree)+nDb+nName+2); + memset(pRtree, 0, sizeof(Rtree)+nDb+nName*2+8); pRtree->nBusy = 1; pRtree->base.pModule = &rtreeModule; pRtree->zDb = (char *)&pRtree[1]; pRtree->zName = &pRtree->zDb[nDb+1]; + pRtree->zNodeName = &pRtree->zName[nName+1]; pRtree->eCoordType = (u8)eCoordType; memcpy(pRtree->zDb, argv[1], nDb); memcpy(pRtree->zName, argv[2], nName); + memcpy(pRtree->zNodeName, argv[2], nName); + memcpy(&pRtree->zNodeName[nName], "_node", 6); /* Create/Connect to the underlying relational database schema. If @@ -200194,7 +212598,6 @@ static int rtreeCheckTable( ){ RtreeCheck check; /* Common context for various routines */ sqlite3_stmt *pStmt = 0; /* Used to find column count of rtree table */ - int bEnd = 0; /* True if transaction should be closed */ int nAux = 0; /* Number of extra columns. */ /* Initialize the context object */ @@ -200203,24 +212606,14 @@ static int rtreeCheckTable( check.zDb = zDb; check.zTab = zTab; - /* If there is not already an open transaction, open one now. This is - ** to ensure that the queries run as part of this integrity-check operate - ** on a consistent snapshot. */ - if( sqlite3_get_autocommit(db) ){ - check.rc = sqlite3_exec(db, "BEGIN", 0, 0, 0); - bEnd = 1; - } - /* Find the number of auxiliary columns */ - if( check.rc==SQLITE_OK ){ - pStmt = rtreeCheckPrepare(&check, "SELECT * FROM %Q.'%q_rowid'", zDb, zTab); - if( pStmt ){ - nAux = sqlite3_column_count(pStmt) - 2; - sqlite3_finalize(pStmt); - }else - if( check.rc!=SQLITE_NOMEM ){ - check.rc = SQLITE_OK; - } + pStmt = rtreeCheckPrepare(&check, "SELECT * FROM %Q.'%q_rowid'", zDb, zTab); + if( pStmt ){ + nAux = sqlite3_column_count(pStmt) - 2; + sqlite3_finalize(pStmt); + }else + if( check.rc!=SQLITE_NOMEM ){ + check.rc = SQLITE_OK; } /* Find number of dimensions in the rtree table. */ @@ -200251,16 +212644,36 @@ static int rtreeCheckTable( sqlite3_finalize(check.aCheckMapping[0]); sqlite3_finalize(check.aCheckMapping[1]); - /* If one was opened, close the transaction */ - if( bEnd ){ - int rc = sqlite3_exec(db, "END", 0, 0, 0); - if( check.rc==SQLITE_OK ) check.rc = rc; - } *pzReport = check.zReport; return check.rc; } /* +** Implementation of the xIntegrity method for Rtree. +*/ +static int rtreeIntegrity( + sqlite3_vtab *pVtab, /* The virtual table to check */ + const char *zSchema, /* Schema in which the virtual table lives */ + const char *zName, /* Name of the virtual table */ + int isQuick, /* True for a quick_check */ + char **pzErr /* Write results here */ +){ + Rtree *pRtree = (Rtree*)pVtab; + int rc; + assert( pzErr!=0 && *pzErr==0 ); + UNUSED_PARAMETER(zSchema); + UNUSED_PARAMETER(zName); + UNUSED_PARAMETER(isQuick); + rc = rtreeCheckTable(pRtree->db, pRtree->zDb, pRtree->zName, pzErr); + if( rc==SQLITE_OK && *pzErr ){ + *pzErr = sqlite3_mprintf("In RTree %s.%s:\n%z", + pRtree->zDb, pRtree->zName, *pzErr); + if( (*pzErr)==0 ) rc = SQLITE_NOMEM; + } + return rc; +} + +/* ** Usage: ** ** rtreecheck(<rtree-table>); @@ -200633,7 +213046,7 @@ static GeoPoly *geopolyFuncParam( int nByte; testcase( pCtx==0 ); if( sqlite3_value_type(pVal)==SQLITE_BLOB - && (nByte = sqlite3_value_bytes(pVal))>=(4+6*sizeof(GeoCoord)) + && (nByte = sqlite3_value_bytes(pVal))>=(int)(4+6*sizeof(GeoCoord)) ){ const unsigned char *a = sqlite3_value_blob(pVal); int nVertex; @@ -200691,6 +213104,7 @@ static void geopolyBlobFunc( sqlite3_value **argv ){ GeoPoly *p = geopolyFuncParam(context, argv[0], 0); + (void)argc; if( p ){ sqlite3_result_blob(context, p->hdr, 4+8*p->nVertex, SQLITE_TRANSIENT); @@ -200710,6 +213124,7 @@ static void geopolyJsonFunc( sqlite3_value **argv ){ GeoPoly *p = geopolyFuncParam(context, argv[0], 0); + (void)argc; if( p ){ sqlite3 *db = sqlite3_context_db_handle(context); sqlite3_str *x = sqlite3_str_new(db); @@ -200791,6 +213206,7 @@ static void geopolyXformFunc( double F = sqlite3_value_double(argv[6]); GeoCoord x1, y1, x0, y0; int ii; + (void)argc; if( p ){ for(ii=0; ii<p->nVertex; ii++){ x0 = GeoX(p,ii); @@ -200841,6 +213257,7 @@ static void geopolyAreaFunc( sqlite3_value **argv ){ GeoPoly *p = geopolyFuncParam(context, argv[0], 0); + (void)argc; if( p ){ sqlite3_result_double(context, geopolyArea(p)); sqlite3_free(p); @@ -200866,6 +213283,7 @@ static void geopolyCcwFunc( sqlite3_value **argv ){ GeoPoly *p = geopolyFuncParam(context, argv[0], 0); + (void)argc; if( p ){ if( geopolyArea(p)<0.0 ){ int ii, jj; @@ -200920,6 +213338,7 @@ static void geopolyRegularFunc( int n = sqlite3_value_int(argv[3]); int i; GeoPoly *p; + (void)argc; if( n<3 || r<=0.0 ) return; if( n>1000 ) n = 1000; @@ -201029,6 +213448,7 @@ static void geopolyBBoxFunc( sqlite3_value **argv ){ GeoPoly *p = geopolyBBox(context, argv[0], 0, 0); + (void)argc; if( p ){ sqlite3_result_blob(context, p->hdr, 4+8*p->nVertex, SQLITE_TRANSIENT); @@ -201056,6 +213476,7 @@ static void geopolyBBoxStep( ){ RtreeCoord a[4]; int rc = SQLITE_OK; + (void)argc; (void)geopolyBBox(context, argv[0], a, &rc); if( rc==SQLITE_OK ){ GeoBBox *pBBox; @@ -201144,6 +213565,8 @@ static void geopolyContainsPointFunc( int v = 0; int cnt = 0; int ii; + (void)argc; + if( p1==0 ) return; for(ii=0; ii<p1->nVertex-1; ii++){ v = pointBeneathLine(x0,y0,GeoX(p1,ii), GeoY(p1,ii), @@ -201183,6 +213606,7 @@ static void geopolyWithinFunc( ){ GeoPoly *p1 = geopolyFuncParam(context, argv[0], 0); GeoPoly *p2 = geopolyFuncParam(context, argv[1], 0); + (void)argc; if( p1 && p2 ){ int x = geopolyOverlap(p1, p2); if( x<0 ){ @@ -201513,6 +213937,7 @@ static void geopolyOverlapFunc( ){ GeoPoly *p1 = geopolyFuncParam(context, argv[0], 0); GeoPoly *p2 = geopolyFuncParam(context, argv[1], 0); + (void)argc; if( p1 && p2 ){ int x = geopolyOverlap(p1, p2); if( x<0 ){ @@ -201533,8 +213958,12 @@ static void geopolyDebugFunc( int argc, sqlite3_value **argv ){ + (void)context; + (void)argc; #ifdef GEOPOLY_ENABLE_DEBUG geo_debug = sqlite3_value_int(argv[0]); +#else + (void)argv; #endif } @@ -201562,26 +213991,31 @@ static int geopolyInit( sqlite3_str *pSql; char *zSql; int ii; + (void)pAux; sqlite3_vtab_config(db, SQLITE_VTAB_CONSTRAINT_SUPPORT, 1); + sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS); /* Allocate the sqlite3_vtab structure */ nDb = strlen(argv[1]); nName = strlen(argv[2]); - pRtree = (Rtree *)sqlite3_malloc64(sizeof(Rtree)+nDb+nName+2); + pRtree = (Rtree *)sqlite3_malloc64(sizeof(Rtree)+nDb+nName*2+8); if( !pRtree ){ return SQLITE_NOMEM; } - memset(pRtree, 0, sizeof(Rtree)+nDb+nName+2); + memset(pRtree, 0, sizeof(Rtree)+nDb+nName*2+8); pRtree->nBusy = 1; pRtree->base.pModule = &rtreeModule; pRtree->zDb = (char *)&pRtree[1]; pRtree->zName = &pRtree->zDb[nDb+1]; + pRtree->zNodeName = &pRtree->zName[nName+1]; pRtree->eCoordType = RTREE_COORD_REAL32; pRtree->nDim = 2; pRtree->nDim2 = 4; memcpy(pRtree->zDb, argv[1], nDb); memcpy(pRtree->zName, argv[2], nName); + memcpy(pRtree->zNodeName, argv[2], nName); + memcpy(&pRtree->zNodeName[nName], "_node", 6); /* Create/Connect to the underlying relational database schema. If @@ -201678,6 +214112,7 @@ static int geopolyFilter( RtreeNode *pRoot = 0; int rc = SQLITE_OK; int iCell = 0; + (void)idxStr; rtreeReference(pRtree); @@ -201804,6 +214239,7 @@ static int geopolyBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){ int iRowidTerm = -1; int iFuncTerm = -1; int idxNum = 0; + (void)tab; for(ii=0; ii<pIdxInfo->nConstraint; ii++){ struct sqlite3_index_constraint *p = &pIdxInfo->aConstraint[ii]; @@ -201993,7 +214429,6 @@ static int geopolyUpdate( } if( rc==SQLITE_OK ){ int rc2; - pRtree->iReinsertHeight = -1; rc = rtreeInsertCell(pRtree, pLeaf, &cell, 0); rc2 = nodeRelease(pRtree, pLeaf); if( rc==SQLITE_OK ){ @@ -202024,7 +214459,7 @@ static int geopolyUpdate( sqlite3_free(p); nChange = 1; } - for(jj=1; jj<pRtree->nAux; jj++){ + for(jj=1; jj<nData-2; jj++){ nChange++; sqlite3_bind_value(pUp, jj+2, aData[jj+2]); } @@ -202050,6 +214485,8 @@ static int geopolyFindFunction( void (**pxFunc)(sqlite3_context*,int,sqlite3_value**), void **ppArg ){ + (void)pVtab; + (void)nArg; if( sqlite3_stricmp(zName, "geopoly_overlap")==0 ){ *pxFunc = geopolyOverlapFunc; *ppArg = 0; @@ -202088,7 +214525,8 @@ static sqlite3_module geopolyModule = { rtreeSavepoint, /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ - rtreeShadowName /* xShadowName */ + rtreeShadowName, /* xShadowName */ + rtreeIntegrity /* xIntegrity */ }; static int sqlite3_geopoly_init(sqlite3 *db){ @@ -202119,7 +214557,7 @@ static int sqlite3_geopoly_init(sqlite3 *db){ } aAgg[] = { { geopolyBBoxStep, geopolyBBoxFinal, "geopoly_group_bbox" }, }; - int i; + unsigned int i; for(i=0; i<sizeof(aFunc)/sizeof(aFunc[0]) && rc==SQLITE_OK; i++){ int enc; if( aFunc[i].bPure ){ @@ -202627,8 +215065,9 @@ static void icuRegexpFunc(sqlite3_context *p, int nArg, sqlite3_value **apArg){ if( U_SUCCESS(status) ){ sqlite3_set_auxdata(p, 0, pExpr, icuRegexpDelete); - }else{ - assert(!pExpr); + pExpr = sqlite3_get_auxdata(p, 0); + } + if( !pExpr ){ icuFunctionError(p, "uregex_open", status); return; } @@ -203339,7 +215778,7 @@ SQLITE_PRIVATE void sqlite3Fts3IcuTokenizerModule( ** The order of the columns in the data_% table does not matter. ** ** Instead of a regular table, the RBU database may also contain virtual -** tables or view named using the data_<target> naming scheme. +** tables or views named using the data_<target> naming scheme. ** ** Instead of the plain data_<target> naming scheme, RBU database tables ** may also be named data<integer>_<target>, where <integer> is any sequence @@ -203352,7 +215791,7 @@ SQLITE_PRIVATE void sqlite3Fts3IcuTokenizerModule( ** ** If the target database table is a virtual table or a table that has no ** PRIMARY KEY declaration, the data_% table must also contain a column -** named "rbu_rowid". This column is mapped to the tables implicit primary +** named "rbu_rowid". This column is mapped to the table's implicit primary ** key column - "rowid". Virtual tables for which the "rowid" column does ** not function like a primary key value cannot be updated using RBU. For ** example, if the target db contains either of the following: @@ -203786,6 +216225,34 @@ SQLITE_API void sqlite3rbu_bp_progress(sqlite3rbu *pRbu, int *pnOne, int*pnTwo); SQLITE_API int sqlite3rbu_state(sqlite3rbu *pRbu); /* +** As part of applying an RBU update or performing an RBU vacuum operation, +** the system must at one point move the *-oal file to the equivalent *-wal +** path. Normally, it does this by invoking POSIX function rename(2) directly. +** Except on WINCE platforms, where it uses win32 API MoveFileW(). This +** function may be used to register a callback that the RBU module will invoke +** instead of one of these APIs. +** +** If a callback is registered with an RBU handle, it invokes it instead +** of rename(2) when it needs to move a file within the file-system. The +** first argument passed to the xRename() callback is a copy of the second +** argument (pArg) passed to this function. The second is the full path +** to the file to move and the third the full path to which it should be +** moved. The callback function should return SQLITE_OK to indicate +** success. If an error occurs, it should return an SQLite error code. +** In this case the RBU operation will be abandoned and the error returned +** to the RBU user. +** +** Passing a NULL pointer in place of the xRename argument to this function +** restores the default behaviour. +*/ +SQLITE_API void sqlite3rbu_rename_handler( + sqlite3rbu *pRbu, + void *pArg, + int (*xRename)(void *pArg, const char *zOld, const char *zNew) +); + + +/* ** Create an RBU VFS named zName that accesses the underlying file-system ** via existing VFS zParent. Or, if the zParent parameter is passed NULL, ** then the new RBU VFS uses the default system VFS to access the file-system. @@ -204152,6 +216619,8 @@ struct sqlite3rbu { int nPagePerSector; /* Pages per sector for pTargetFd */ i64 iOalSz; i64 nPhaseOneStep; + void *pRenameArg; + int (*xRename)(void*, const char*, const char*); /* The following state variables are used as part of the incremental ** checkpoint stage (eStage==RBU_STAGE_CKPT). See comments surrounding @@ -206540,7 +219009,7 @@ static void rbuOpenDatabase(sqlite3rbu *p, sqlite3 *dbMain, int *pbRetry){ sqlite3_file_control(p->dbRbu, "main", SQLITE_FCNTL_RBUCNT, (void*)p); if( p->zState==0 ){ const char *zFile = sqlite3_db_filename(p->dbRbu, "main"); - p->zState = rbuMPrintf(p, "file://%s-vacuum?modeof=%s", zFile, zFile); + p->zState = rbuMPrintf(p, "file:///%s-vacuum?modeof=%s", zFile, zFile); } } @@ -206788,11 +219257,11 @@ static void rbuSetupCheckpoint(sqlite3rbu *p, RbuState *pState){ ** no-ops. These locks will not be released until the connection ** is closed. ** - ** * Attempting to xSync() the database file causes an SQLITE_INTERNAL + ** * Attempting to xSync() the database file causes an SQLITE_NOTICE ** error. ** ** As a result, unless an error (i.e. OOM or SQLITE_BUSY) occurs, the - ** checkpoint below fails with SQLITE_INTERNAL, and leaves the aFrame[] + ** checkpoint below fails with SQLITE_NOTICE, and leaves the aFrame[] ** array populated with a set of (frame -> page) mappings. Because the ** WRITER, CHECKPOINT and READ0 locks are still held, it is safe to copy ** data from the wal file into the database file according to the @@ -206802,7 +219271,7 @@ static void rbuSetupCheckpoint(sqlite3rbu *p, RbuState *pState){ int rc2; p->eStage = RBU_STAGE_CAPTURE; rc2 = sqlite3_exec(p->dbMain, "PRAGMA main.wal_checkpoint=restart", 0, 0,0); - if( rc2!=SQLITE_INTERNAL ) p->rc = rc2; + if( rc2!=SQLITE_NOTICE ) p->rc = rc2; } if( p->rc==SQLITE_OK && p->nFrame>0 ){ @@ -206848,7 +219317,7 @@ static int rbuCaptureWalRead(sqlite3rbu *pRbu, i64 iOff, int iAmt){ if( pRbu->mLock!=mReq ){ pRbu->rc = SQLITE_BUSY; - return SQLITE_INTERNAL; + return SQLITE_NOTICE_RBU; } pRbu->pgsz = iAmt; @@ -206898,6 +219367,11 @@ static void rbuCheckpointFrame(sqlite3rbu *p, RbuFrame *pFrame){ p->rc = pDb->pMethods->xWrite(pDb, p->aBuf, p->pgsz, iOff); } +/* +** This value is copied from the definition of ZIPVFS_CTRL_FILE_POINTER +** in zipvfs.h. +*/ +#define RBU_ZIPVFS_CTRL_FILE_POINTER 230439 /* ** Take an EXCLUSIVE lock on the database file. Return SQLITE_OK if @@ -206906,9 +219380,20 @@ static void rbuCheckpointFrame(sqlite3rbu *p, RbuFrame *pFrame){ static int rbuLockDatabase(sqlite3 *db){ int rc = SQLITE_OK; sqlite3_file *fd = 0; - sqlite3_file_control(db, "main", SQLITE_FCNTL_FILE_POINTER, &fd); - if( fd->pMethods ){ + sqlite3_file_control(db, "main", RBU_ZIPVFS_CTRL_FILE_POINTER, &fd); + if( fd ){ + sqlite3_file_control(db, "main", SQLITE_FCNTL_FILE_POINTER, &fd); + rc = fd->pMethods->xLock(fd, SQLITE_LOCK_SHARED); + if( rc==SQLITE_OK ){ + rc = fd->pMethods->xUnlock(fd, SQLITE_LOCK_NONE); + } + sqlite3_file_control(db, "main", RBU_ZIPVFS_CTRL_FILE_POINTER, &fd); + }else{ + sqlite3_file_control(db, "main", SQLITE_FCNTL_FILE_POINTER, &fd); + } + + if( rc==SQLITE_OK && fd->pMethods ){ rc = fd->pMethods->xLock(fd, SQLITE_LOCK_SHARED); if( rc==SQLITE_OK ){ rc = fd->pMethods->xLock(fd, SQLITE_LOCK_EXCLUSIVE); @@ -207000,32 +219485,7 @@ static void rbuMoveOalFile(sqlite3rbu *p){ } if( p->rc==SQLITE_OK ){ -#if defined(_WIN32_WCE) - { - LPWSTR zWideOal; - LPWSTR zWideWal; - - zWideOal = rbuWinUtf8ToUnicode(zOal); - if( zWideOal ){ - zWideWal = rbuWinUtf8ToUnicode(zWal); - if( zWideWal ){ - if( MoveFileW(zWideOal, zWideWal) ){ - p->rc = SQLITE_OK; - }else{ - p->rc = SQLITE_IOERR; - } - sqlite3_free(zWideWal); - }else{ - p->rc = SQLITE_IOERR_NOMEM; - } - sqlite3_free(zWideOal); - }else{ - p->rc = SQLITE_IOERR_NOMEM; - } - } -#else - p->rc = rename(zOal, zWal) ? SQLITE_IOERR : SQLITE_OK; -#endif + p->rc = p->xRename(p->pRenameArg, zOal, zWal); } if( p->rc!=SQLITE_OK @@ -207612,7 +220072,8 @@ static void rbuSetupOal(sqlite3rbu *p, RbuState *pState){ static void rbuDeleteOalFile(sqlite3rbu *p){ char *zOal = rbuMPrintf(p, "%s-oal", p->zTarget); if( zOal ){ - sqlite3_vfs *pVfs = sqlite3_vfs_find(0); + sqlite3_vfs *pVfs = 0; + sqlite3_file_control(p->dbMain, "main", SQLITE_FCNTL_VFS_POINTER, &pVfs); assert( pVfs && p->rc==SQLITE_OK && p->zErrmsg==0 ); pVfs->xDelete(pVfs, zOal, 0); sqlite3_free(zOal); @@ -207764,6 +220225,7 @@ static sqlite3rbu *openRbuHandle( /* Create the custom VFS. */ memset(p, 0, sizeof(sqlite3rbu)); + sqlite3rbu_rename_handler(p, 0, 0); rbuCreateVfs(p); /* Open the target, RBU and state databases */ @@ -208155,6 +220617,54 @@ SQLITE_API int sqlite3rbu_savestate(sqlite3rbu *p){ return rc; } +/* +** Default xRename callback for RBU. +*/ +static int xDefaultRename(void *pArg, const char *zOld, const char *zNew){ + int rc = SQLITE_OK; +#if defined(_WIN32_WCE) + { + LPWSTR zWideOld; + LPWSTR zWideNew; + + zWideOld = rbuWinUtf8ToUnicode(zOld); + if( zWideOld ){ + zWideNew = rbuWinUtf8ToUnicode(zNew); + if( zWideNew ){ + if( MoveFileW(zWideOld, zWideNew) ){ + rc = SQLITE_OK; + }else{ + rc = SQLITE_IOERR; + } + sqlite3_free(zWideNew); + }else{ + rc = SQLITE_IOERR_NOMEM; + } + sqlite3_free(zWideOld); + }else{ + rc = SQLITE_IOERR_NOMEM; + } + } +#else + rc = rename(zOld, zNew) ? SQLITE_IOERR : SQLITE_OK; +#endif + return rc; +} + +SQLITE_API void sqlite3rbu_rename_handler( + sqlite3rbu *pRbu, + void *pArg, + int (*xRename)(void *pArg, const char *zOld, const char *zNew) +){ + if( xRename ){ + pRbu->xRename = xRename; + pRbu->pRenameArg = pArg; + }else{ + pRbu->xRename = xDefaultRename; + pRbu->pRenameArg = 0; + } +} + /************************************************************************** ** Beginning of RBU VFS shim methods. The VFS shim modifies the behaviour ** of a standard VFS in the following ways: @@ -208211,7 +220721,7 @@ SQLITE_API int sqlite3rbu_savestate(sqlite3rbu *p){ ** database file are recorded. xShmLock() calls to unlock the same ** locks are no-ops (so that once obtained, these locks are never ** relinquished). Finally, calls to xSync() on the target database -** file fail with SQLITE_INTERNAL errors. +** file fail with SQLITE_NOTICE errors. */ static void rbuUnlockShm(rbu_file *p){ @@ -208320,9 +220830,12 @@ static int rbuVfsClose(sqlite3_file *pFile){ sqlite3_free(p->zDel); if( p->openFlags & SQLITE_OPEN_MAIN_DB ){ + const sqlite3_io_methods *pMeth = p->pReal->pMethods; rbuMainlistRemove(p); rbuUnlockShm(p); - p->pReal->pMethods->xShmUnmap(p->pReal, 0); + if( pMeth->iVersion>1 && pMeth->xShmUnmap ){ + pMeth->xShmUnmap(p->pReal, 0); + } } else if( (p->openFlags & SQLITE_OPEN_DELETEONCLOSE) && p->pRbu ){ rbuUpdateTempSize(p, 0); @@ -208490,7 +221003,7 @@ static int rbuVfsSync(sqlite3_file *pFile, int flags){ rbu_file *p = (rbu_file *)pFile; if( p->pRbu && p->pRbu->eStage==RBU_STAGE_CAPTURE ){ if( p->openFlags & SQLITE_OPEN_MAIN_DB ){ - return SQLITE_INTERNAL; + return SQLITE_NOTICE_RBU; } return SQLITE_OK; } @@ -208781,6 +221294,25 @@ static int rbuVfsOpen( rbuVfsShmUnmap, /* xShmUnmap */ 0, 0 /* xFetch, xUnfetch */ }; + static sqlite3_io_methods rbuvfs_io_methods1 = { + 1, /* iVersion */ + rbuVfsClose, /* xClose */ + rbuVfsRead, /* xRead */ + rbuVfsWrite, /* xWrite */ + rbuVfsTruncate, /* xTruncate */ + rbuVfsSync, /* xSync */ + rbuVfsFileSize, /* xFileSize */ + rbuVfsLock, /* xLock */ + rbuVfsUnlock, /* xUnlock */ + rbuVfsCheckReservedLock, /* xCheckReservedLock */ + rbuVfsFileControl, /* xFileControl */ + rbuVfsSectorSize, /* xSectorSize */ + rbuVfsDeviceCharacteristics, /* xDeviceCharacteristics */ + 0, 0, 0, 0, 0, 0 + }; + + + rbu_vfs *pRbuVfs = (rbu_vfs*)pVfs; sqlite3_vfs *pRealVfs = pRbuVfs->pRealVfs; rbu_file *pFd = (rbu_file *)pFile; @@ -208835,10 +221367,15 @@ static int rbuVfsOpen( rc = pRealVfs->xOpen(pRealVfs, zOpen, pFd->pReal, oflags, pOutFlags); } if( pFd->pReal->pMethods ){ + const sqlite3_io_methods *pMeth = pFd->pReal->pMethods; /* The xOpen() operation has succeeded. Set the sqlite3_file.pMethods ** pointer and, if the file is a main database file, link it into the ** mutex protected linked list of all such files. */ - pFile->pMethods = &rbuvfs_io_methods; + if( pMeth->iVersion<2 || pMeth->xShmLock==0 ){ + pFile->pMethods = &rbuvfs_io_methods1; + }else{ + pFile->pMethods = &rbuvfs_io_methods; + } if( flags & SQLITE_OPEN_MAIN_DB ){ rbuMainlistAdd(pFd); } @@ -209271,6 +221808,7 @@ static int statConnect( StatTable *pTab = 0; int rc = SQLITE_OK; int iDb; + (void)pAux; if( argc>=4 ){ Token nm; @@ -209324,6 +221862,7 @@ static int statBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){ int iSchema = -1; int iName = -1; int iAgg = -1; + (void)tab; /* Look for a valid schema=? constraint. If found, change the idxNum to ** 1 and request the value of that constraint be sent to xFilter. And @@ -209849,6 +222388,8 @@ static int statFilter( int iArg = 0; /* Count of argv[] parameters used so far */ int rc = SQLITE_OK; /* Result of this operation */ const char *zName = 0; /* Only provide analysis of this table */ + (void)argc; + (void)idxStr; statResetCsr(pCsr); sqlite3_finalize(pCsr->pStmt); @@ -209932,16 +222473,16 @@ static int statColumn( } break; case 4: /* ncell */ - sqlite3_result_int(ctx, pCsr->nCell); + sqlite3_result_int64(ctx, pCsr->nCell); break; case 5: /* payload */ - sqlite3_result_int(ctx, pCsr->nPayload); + sqlite3_result_int64(ctx, pCsr->nPayload); break; case 6: /* unused */ - sqlite3_result_int(ctx, pCsr->nUnused); + sqlite3_result_int64(ctx, pCsr->nUnused); break; case 7: /* mx_payload */ - sqlite3_result_int(ctx, pCsr->nMxPayload); + sqlite3_result_int64(ctx, pCsr->nMxPayload); break; case 8: /* pgoffset */ if( !pCsr->isAgg ){ @@ -209949,7 +222490,7 @@ static int statColumn( } break; case 9: /* pgsize */ - sqlite3_result_int(ctx, pCsr->szPage); + sqlite3_result_int64(ctx, pCsr->szPage); break; case 10: { /* schema */ sqlite3 *db = sqlite3_context_db_handle(ctx); @@ -209999,7 +222540,8 @@ SQLITE_PRIVATE int sqlite3DbstatRegister(sqlite3 *db){ 0, /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ - 0 /* xShadowName */ + 0, /* xShadowName */ + 0 /* xIntegrity */ }; return sqlite3_create_module(db, "dbstat", &dbstat_module, 0); } @@ -210083,8 +222625,13 @@ static int dbpageConnect( ){ DbpageTable *pTab = 0; int rc = SQLITE_OK; + (void)pAux; + (void)argc; + (void)argv; + (void)pzErr; sqlite3_vtab_config(db, SQLITE_VTAB_DIRECTONLY); + sqlite3_vtab_config(db, SQLITE_VTAB_USES_ALL_SCHEMAS); rc = sqlite3_declare_vtab(db, "CREATE TABLE x(pgno INTEGER PRIMARY KEY, data BLOB, schema HIDDEN)"); if( rc==SQLITE_OK ){ @@ -210121,6 +222668,7 @@ static int dbpageDisconnect(sqlite3_vtab *pVtab){ static int dbpageBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){ int i; int iPlan = 0; + (void)tab; /* If there is a schema= constraint, it must be honored. Report a ** ridiculously large estimated cost if the schema= constraint is @@ -210167,7 +222715,6 @@ static int dbpageBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){ ){ pIdxInfo->orderByConsumed = 1; } - sqlite3VtabWriteAll(pIdxInfo); return SQLITE_OK; } @@ -210236,6 +222783,8 @@ static int dbpageFilter( sqlite3 *db = pTab->db; Btree *pBt; + (void)idxStr; + /* Default setting is no rows of result */ pCsr->pgno = 1; pCsr->mxPgno = 0; @@ -210250,7 +222799,7 @@ static int dbpageFilter( pCsr->iDb = 0; } pBt = db->aDb[pCsr->iDb].pBt; - if( pBt==0 ) return SQLITE_OK; + if( NEVER(pBt==0) ) return SQLITE_OK; pCsr->pPager = sqlite3BtreePager(pBt); pCsr->szPage = sqlite3BtreeGetPageSize(pBt); pCsr->mxPgno = sqlite3BtreeLastPage(pBt); @@ -210285,12 +222834,18 @@ static int dbpageColumn( } case 1: { /* data */ DbPage *pDbPage = 0; - rc = sqlite3PagerGet(pCsr->pPager, pCsr->pgno, (DbPage**)&pDbPage, 0); - if( rc==SQLITE_OK ){ - sqlite3_result_blob(ctx, sqlite3PagerGetData(pDbPage), pCsr->szPage, - SQLITE_TRANSIENT); + if( pCsr->pgno==((PENDING_BYTE/pCsr->szPage)+1) ){ + /* The pending byte page. Assume it is zeroed out. Attempting to + ** request this page from the page is an SQLITE_CORRUPT error. */ + sqlite3_result_zeroblob(ctx, pCsr->szPage); + }else{ + rc = sqlite3PagerGet(pCsr->pPager, pCsr->pgno, (DbPage**)&pDbPage, 0); + if( rc==SQLITE_OK ){ + sqlite3_result_blob(ctx, sqlite3PagerGetData(pDbPage), pCsr->szPage, + SQLITE_TRANSIENT); + } + sqlite3PagerUnref(pDbPage); } - sqlite3PagerUnref(pDbPage); break; } default: { /* schema */ @@ -210299,7 +222854,7 @@ static int dbpageColumn( break; } } - return SQLITE_OK; + return rc; } static int dbpageRowid(sqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){ @@ -210325,6 +222880,7 @@ static int dbpageUpdate( Pager *pPager; int szPage; + (void)pRowid; if( pTab->db->flags & SQLITE_Defensive ){ zErr = "read-only"; goto update_fail; @@ -210334,18 +222890,20 @@ static int dbpageUpdate( goto update_fail; } pgno = sqlite3_value_int(argv[0]); - if( (Pgno)sqlite3_value_int(argv[1])!=pgno ){ + if( sqlite3_value_type(argv[0])==SQLITE_NULL + || (Pgno)sqlite3_value_int(argv[1])!=pgno + ){ zErr = "cannot insert"; goto update_fail; } zSchema = (const char*)sqlite3_value_text(argv[4]); - iDb = zSchema ? sqlite3FindDbName(pTab->db, zSchema) : -1; - if( iDb<0 ){ + iDb = ALWAYS(zSchema) ? sqlite3FindDbName(pTab->db, zSchema) : -1; + if( NEVER(iDb<0) ){ zErr = "no such schema"; goto update_fail; } pBt = pTab->db->aDb[iDb].pBt; - if( pgno<1 || pBt==0 || pgno>(int)sqlite3BtreeLastPage(pBt) ){ + if( NEVER(pgno<1) || NEVER(pBt==0) || NEVER(pgno>sqlite3BtreeLastPage(pBt)) ){ zErr = "bad page number"; goto update_fail; } @@ -210359,11 +222917,12 @@ static int dbpageUpdate( pPager = sqlite3BtreePager(pBt); rc = sqlite3PagerGet(pPager, pgno, (DbPage**)&pDbPage, 0); if( rc==SQLITE_OK ){ - rc = sqlite3PagerWrite(pDbPage); - if( rc==SQLITE_OK ){ - memcpy(sqlite3PagerGetData(pDbPage), - sqlite3_value_blob(argv[3]), - szPage); + const void *pData = sqlite3_value_blob(argv[3]); + assert( pData!=0 || pTab->db->mallocFailed ); + if( pData + && (rc = sqlite3PagerWrite(pDbPage))==SQLITE_OK + ){ + memcpy(sqlite3PagerGetData(pDbPage), pData, szPage); } } sqlite3PagerUnref(pDbPage); @@ -210385,7 +222944,7 @@ static int dbpageBegin(sqlite3_vtab *pVtab){ int i; for(i=0; i<db->nDb; i++){ Btree *pBt = db->aDb[i].pBt; - if( pBt ) sqlite3BtreeBeginTrans(pBt, 1, 0); + if( pBt ) (void)sqlite3BtreeBeginTrans(pBt, 1, 0); } return SQLITE_OK; } @@ -210419,7 +222978,8 @@ SQLITE_PRIVATE int sqlite3DbpageRegister(sqlite3 *db){ 0, /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ - 0 /* xShadowName */ + 0, /* xShadowName */ + 0 /* xIntegrity */ }; return sqlite3_create_module(db, "sqlite_dbpage", &dbpage_module, 0); } @@ -210456,6 +223016,8 @@ typedef struct SessionInput SessionInput; # endif #endif +#define SESSIONS_ROWID "_rowid_" + static int sessions_strm_chunk_size = SESSIONS_STRM_CHUNK_SIZE; typedef struct SessionHook SessionHook; @@ -210477,6 +223039,7 @@ struct sqlite3_session { int bEnable; /* True if currently recording */ int bIndirect; /* True if all changes are indirect */ int bAutoAttach; /* True to auto-attach tables */ + int bImplicitPK; /* True to handle tables with implicit PK */ int rc; /* Non-zero if an error has occurred */ void *pFilterCtx; /* First argument to pass to xTableFilter */ int (*xTableFilter)(void *pCtx, const char *zTab); @@ -210547,17 +223110,32 @@ struct sqlite3_changeset_iter { ** The data associated with each hash-table entry is a structure containing ** a subset of the initial values that the modified row contained at the ** start of the session. Or no initial values if the row was inserted. +** +** pDfltStmt: +** This is only used by the sqlite3changegroup_xxx() APIs, not by +** regular sqlite3_session objects. It is a SELECT statement that +** selects the default value for each table column. For example, +** if the table is +** +** CREATE TABLE xx(a DEFAULT 1, b, c DEFAULT 'abc') +** +** then this variable is the compiled version of: +** +** SELECT 1, NULL, 'abc' */ struct SessionTable { SessionTable *pNext; char *zName; /* Local name of table */ int nCol; /* Number of columns in table zName */ int bStat1; /* True if this is sqlite_stat1 */ + int bRowid; /* True if this table uses rowid for PK */ const char **azCol; /* Column names */ + const char **azDflt; /* Default value expressions */ u8 *abPK; /* Array of primary key flags */ int nEntry; /* Total number of entries in hash table */ int nChange; /* Size of apChange[] array */ SessionChange **apChange; /* Hash table buckets */ + sqlite3_stmt *pDfltStmt; }; /* @@ -210726,6 +223304,7 @@ struct SessionTable { struct SessionChange { u8 op; /* One of UPDATE, DELETE, INSERT */ u8 bIndirect; /* True if this change is "indirect" */ + u16 nRecordField; /* Number of fields in aRecord[] */ int nMaxSize; /* Max size of eventual changeset record */ int nRecord; /* Number of bytes in buffer aRecord[] */ u8 *aRecord; /* Buffer containing old.* record */ @@ -210751,7 +223330,7 @@ static int sessionVarintLen(int iVal){ ** Read a varint value from aBuf[] into *piVal. Return the number of ** bytes read. */ -static int sessionVarintGet(u8 *aBuf, int *piVal){ +static int sessionVarintGet(const u8 *aBuf, int *piVal){ return getVarint32(aBuf, *piVal); } @@ -210945,6 +223524,7 @@ static unsigned int sessionHashAppendType(unsigned int h, int eType){ */ static int sessionPreupdateHash( sqlite3_session *pSession, /* Session object that owns pTab */ + i64 iRowid, SessionTable *pTab, /* Session table handle */ int bNew, /* True to hash the new.* PK */ int *piHash, /* OUT: Hash value */ @@ -210953,48 +223533,53 @@ static int sessionPreupdateHash( unsigned int h = 0; /* Hash value to return */ int i; /* Used to iterate through columns */ - assert( *pbNullPK==0 ); - assert( pTab->nCol==pSession->hook.xCount(pSession->hook.pCtx) ); - for(i=0; i<pTab->nCol; i++){ - if( pTab->abPK[i] ){ - int rc; - int eType; - sqlite3_value *pVal; - - if( bNew ){ - rc = pSession->hook.xNew(pSession->hook.pCtx, i, &pVal); - }else{ - rc = pSession->hook.xOld(pSession->hook.pCtx, i, &pVal); - } - if( rc!=SQLITE_OK ) return rc; + if( pTab->bRowid ){ + assert( pTab->nCol-1==pSession->hook.xCount(pSession->hook.pCtx) ); + h = sessionHashAppendI64(h, iRowid); + }else{ + assert( *pbNullPK==0 ); + assert( pTab->nCol==pSession->hook.xCount(pSession->hook.pCtx) ); + for(i=0; i<pTab->nCol; i++){ + if( pTab->abPK[i] ){ + int rc; + int eType; + sqlite3_value *pVal; - eType = sqlite3_value_type(pVal); - h = sessionHashAppendType(h, eType); - if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){ - i64 iVal; - if( eType==SQLITE_INTEGER ){ - iVal = sqlite3_value_int64(pVal); + if( bNew ){ + rc = pSession->hook.xNew(pSession->hook.pCtx, i, &pVal); }else{ - double rVal = sqlite3_value_double(pVal); - assert( sizeof(iVal)==8 && sizeof(rVal)==8 ); - memcpy(&iVal, &rVal, 8); + rc = pSession->hook.xOld(pSession->hook.pCtx, i, &pVal); } - h = sessionHashAppendI64(h, iVal); - }else if( eType==SQLITE_TEXT || eType==SQLITE_BLOB ){ - const u8 *z; - int n; - if( eType==SQLITE_TEXT ){ - z = (const u8 *)sqlite3_value_text(pVal); + if( rc!=SQLITE_OK ) return rc; + + eType = sqlite3_value_type(pVal); + h = sessionHashAppendType(h, eType); + if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){ + i64 iVal; + if( eType==SQLITE_INTEGER ){ + iVal = sqlite3_value_int64(pVal); + }else{ + double rVal = sqlite3_value_double(pVal); + assert( sizeof(iVal)==8 && sizeof(rVal)==8 ); + memcpy(&iVal, &rVal, 8); + } + h = sessionHashAppendI64(h, iVal); + }else if( eType==SQLITE_TEXT || eType==SQLITE_BLOB ){ + const u8 *z; + int n; + if( eType==SQLITE_TEXT ){ + z = (const u8 *)sqlite3_value_text(pVal); + }else{ + z = (const u8 *)sqlite3_value_blob(pVal); + } + n = sqlite3_value_bytes(pVal); + if( !z && (eType!=SQLITE_BLOB || n>0) ) return SQLITE_NOMEM; + h = sessionHashAppendBlob(h, n, z); }else{ - z = (const u8 *)sqlite3_value_blob(pVal); + assert( eType==SQLITE_NULL ); + assert( pTab->bStat1==0 || i!=1 ); + *pbNullPK = 1; } - n = sqlite3_value_bytes(pVal); - if( !z && (eType!=SQLITE_BLOB || n>0) ) return SQLITE_NOMEM; - h = sessionHashAppendBlob(h, n, z); - }else{ - assert( eType==SQLITE_NULL ); - assert( pTab->bStat1==0 || i!=1 ); - *pbNullPK = 1; } } } @@ -211008,9 +223593,11 @@ static int sessionPreupdateHash( ** Return the number of bytes of space occupied by the value (including ** the type byte). */ -static int sessionSerialLen(u8 *a){ - int e = *a; +static int sessionSerialLen(const u8 *a){ + int e; int n; + assert( a!=0 ); + e = *a; if( e==0 || e==0xFF ) return 1; if( e==SQLITE_NULL ) return 1; if( e==SQLITE_INTEGER || e==SQLITE_FLOAT ) return 9; @@ -211277,6 +223864,7 @@ static int sessionMergeUpdate( */ static int sessionPreupdateEqual( sqlite3_session *pSession, /* Session object that owns SessionTable */ + i64 iRowid, /* Rowid value if pTab->bRowid */ SessionTable *pTab, /* Table associated with change */ SessionChange *pChange, /* Change to compare to */ int op /* Current pre-update operation */ @@ -211284,6 +223872,11 @@ static int sessionPreupdateEqual( int iCol; /* Used to iterate through columns */ u8 *a = pChange->aRecord; /* Cursor used to scan change record */ + if( pTab->bRowid ){ + if( a[0]!=SQLITE_INTEGER ) return 0; + return sessionGetI64(&a[1])==iRowid; + } + assert( op==SQLITE_INSERT || op==SQLITE_UPDATE || op==SQLITE_DELETE ); for(iCol=0; iCol<pTab->nCol; iCol++){ if( !pTab->abPK[iCol] ){ @@ -211306,6 +223899,7 @@ static int sessionPreupdateEqual( rc = pSession->hook.xOld(pSession->hook.pCtx, iCol, &pVal); } assert( rc==SQLITE_OK ); + (void)rc; /* Suppress warning about unused variable */ if( sqlite3_value_type(pVal)!=eType ) return 0; /* A SessionChange object never has a NULL value in a PK column */ @@ -211408,13 +224002,14 @@ static int sessionGrowHash( ** ** For example, if the table is declared as: ** -** CREATE TABLE tbl1(w, x, y, z, PRIMARY KEY(w, z)); +** CREATE TABLE tbl1(w, x DEFAULT 'abc', y, z, PRIMARY KEY(w, z)); ** -** Then the four output variables are populated as follows: +** Then the five output variables are populated as follows: ** ** *pnCol = 4 ** *pzTab = "tbl1" ** *pazCol = {"w", "x", "y", "z"} +** *pazDflt = {NULL, 'abc', NULL, NULL} ** *pabPK = {1, 0, 0, 1} ** ** All returned buffers are part of the same single allocation, which must @@ -211428,7 +224023,9 @@ static int sessionTableInfo( int *pnCol, /* OUT: number of columns */ const char **pzTab, /* OUT: Copy of zThis */ const char ***pazCol, /* OUT: Array of column names for table */ - u8 **pabPK /* OUT: Array of booleans - true for PK col */ + const char ***pazDflt, /* OUT: Array of default value expressions */ + u8 **pabPK, /* OUT: Array of booleans - true for PK col */ + int *pbRowid /* OUT: True if only PK is a rowid */ ){ char *zPragma; sqlite3_stmt *pStmt; @@ -211439,10 +224036,18 @@ static int sessionTableInfo( int i; u8 *pAlloc = 0; char **azCol = 0; + char **azDflt = 0; u8 *abPK = 0; + int bRowid = 0; /* Set to true to use rowid as PK */ assert( pazCol && pabPK ); + *pazCol = 0; + *pabPK = 0; + *pnCol = 0; + if( pzTab ) *pzTab = 0; + if( pazDflt ) *pazDflt = 0; + nThis = sqlite3Strlen30(zThis); if( nThis==12 && 0==sqlite3_stricmp("sqlite_stat1", zThis) ){ rc = sqlite3_table_column_metadata(db, zDb, zThis, 0, 0, 0, 0, 0, 0); @@ -211456,50 +224061,47 @@ static int sessionTableInfo( }else if( rc==SQLITE_ERROR ){ zPragma = sqlite3_mprintf(""); }else{ - *pazCol = 0; - *pabPK = 0; - *pnCol = 0; - if( pzTab ) *pzTab = 0; return rc; } }else{ zPragma = sqlite3_mprintf("PRAGMA '%q'.table_info('%q')", zDb, zThis); } if( !zPragma ){ - *pazCol = 0; - *pabPK = 0; - *pnCol = 0; - if( pzTab ) *pzTab = 0; return SQLITE_NOMEM; } rc = sqlite3_prepare_v2(db, zPragma, -1, &pStmt, 0); sqlite3_free(zPragma); if( rc!=SQLITE_OK ){ - *pazCol = 0; - *pabPK = 0; - *pnCol = 0; - if( pzTab ) *pzTab = 0; return rc; } nByte = nThis + 1; + bRowid = (pbRowid!=0); while( SQLITE_ROW==sqlite3_step(pStmt) ){ - nByte += sqlite3_column_bytes(pStmt, 1); + nByte += sqlite3_column_bytes(pStmt, 1); /* name */ + nByte += sqlite3_column_bytes(pStmt, 4); /* dflt_value */ nDbCol++; + if( sqlite3_column_int(pStmt, 5) ) bRowid = 0; /* pk */ } + if( nDbCol==0 ) bRowid = 0; + nDbCol += bRowid; + nByte += strlen(SESSIONS_ROWID); rc = sqlite3_reset(pStmt); if( rc==SQLITE_OK ){ - nByte += nDbCol * (sizeof(const char *) + sizeof(u8) + 1); + nByte += nDbCol * (sizeof(const char *)*2 + sizeof(u8) + 1 + 1); pAlloc = sessionMalloc64(pSession, nByte); if( pAlloc==0 ){ rc = SQLITE_NOMEM; + }else{ + memset(pAlloc, 0, nByte); } } if( rc==SQLITE_OK ){ azCol = (char **)pAlloc; - pAlloc = (u8 *)&azCol[nDbCol]; + azDflt = (char**)&azCol[nDbCol]; + pAlloc = (u8 *)&azDflt[nDbCol]; abPK = (u8 *)pAlloc; pAlloc = &abPK[nDbCol]; if( pzTab ){ @@ -211509,43 +224111,57 @@ static int sessionTableInfo( } i = 0; + if( bRowid ){ + size_t nName = strlen(SESSIONS_ROWID); + memcpy(pAlloc, SESSIONS_ROWID, nName+1); + azCol[i] = (char*)pAlloc; + pAlloc += nName+1; + abPK[i] = 1; + i++; + } while( SQLITE_ROW==sqlite3_step(pStmt) ){ int nName = sqlite3_column_bytes(pStmt, 1); + int nDflt = sqlite3_column_bytes(pStmt, 4); const unsigned char *zName = sqlite3_column_text(pStmt, 1); + const unsigned char *zDflt = sqlite3_column_text(pStmt, 4); + if( zName==0 ) break; memcpy(pAlloc, zName, nName+1); azCol[i] = (char *)pAlloc; pAlloc += nName+1; + if( zDflt ){ + memcpy(pAlloc, zDflt, nDflt+1); + azDflt[i] = (char *)pAlloc; + pAlloc += nDflt+1; + }else{ + azDflt[i] = 0; + } abPK[i] = sqlite3_column_int(pStmt, 5); i++; } rc = sqlite3_reset(pStmt); - } /* If successful, populate the output variables. Otherwise, zero them and ** free any allocation made. An error code will be returned in this case. */ if( rc==SQLITE_OK ){ - *pazCol = (const char **)azCol; + *pazCol = (const char**)azCol; + if( pazDflt ) *pazDflt = (const char**)azDflt; *pabPK = abPK; *pnCol = nDbCol; }else{ - *pazCol = 0; - *pabPK = 0; - *pnCol = 0; - if( pzTab ) *pzTab = 0; sessionFree(pSession, azCol); } + if( pbRowid ) *pbRowid = bRowid; sqlite3_finalize(pStmt); return rc; } /* -** This function is only called from within a pre-update handler for a -** write to table pTab, part of session pSession. If this is the first -** write to this table, initalize the SessionTable.nCol, azCol[] and -** abPK[] arrays accordingly. +** This function is called to initialize the SessionTable.nCol, azCol[] +** abPK[] and azDflt[] members of SessionTable object pTab. If these +** fields are already initilialized, this function is a no-op. ** ** If an error occurs, an error code is stored in sqlite3_session.rc and ** non-zero returned. Or, if no error occurs but the table has no primary @@ -211553,14 +224169,22 @@ static int sessionTableInfo( ** indicate that updates on this table should be ignored. SessionTable.abPK ** is set to NULL in this case. */ -static int sessionInitTable(sqlite3_session *pSession, SessionTable *pTab){ +static int sessionInitTable( + sqlite3_session *pSession, /* Optional session handle */ + SessionTable *pTab, /* Table object to initialize */ + sqlite3 *db, /* Database handle to read schema from */ + const char *zDb /* Name of db - "main", "temp" etc. */ +){ + int rc = SQLITE_OK; + if( pTab->nCol==0 ){ u8 *abPK; assert( pTab->azCol==0 || pTab->abPK==0 ); - pSession->rc = sessionTableInfo(pSession, pSession->db, pSession->zDb, - pTab->zName, &pTab->nCol, 0, &pTab->azCol, &abPK + rc = sessionTableInfo(pSession, db, zDb, + pTab->zName, &pTab->nCol, 0, &pTab->azCol, &pTab->azDflt, &abPK, + ((pSession==0 || pSession->bImplicitPK) ? &pTab->bRowid : 0) ); - if( pSession->rc==SQLITE_OK ){ + if( rc==SQLITE_OK ){ int i; for(i=0; i<pTab->nCol; i++){ if( abPK[i] ){ @@ -211572,14 +224196,321 @@ static int sessionInitTable(sqlite3_session *pSession, SessionTable *pTab){ pTab->bStat1 = 1; } - if( pSession->bEnableSize ){ + if( pSession && pSession->bEnableSize ){ pSession->nMaxChangesetSize += ( 1 + sessionVarintLen(pTab->nCol) + pTab->nCol + strlen(pTab->zName)+1 ); } } } - return (pSession->rc || pTab->abPK==0); + + if( pSession ){ + pSession->rc = rc; + return (rc || pTab->abPK==0); + } + return rc; +} + +/* +** Re-initialize table object pTab. +*/ +static int sessionReinitTable(sqlite3_session *pSession, SessionTable *pTab){ + int nCol = 0; + const char **azCol = 0; + const char **azDflt = 0; + u8 *abPK = 0; + int bRowid = 0; + + assert( pSession->rc==SQLITE_OK ); + + pSession->rc = sessionTableInfo(pSession, pSession->db, pSession->zDb, + pTab->zName, &nCol, 0, &azCol, &azDflt, &abPK, + (pSession->bImplicitPK ? &bRowid : 0) + ); + if( pSession->rc==SQLITE_OK ){ + if( pTab->nCol>nCol || pTab->bRowid!=bRowid ){ + pSession->rc = SQLITE_SCHEMA; + }else{ + int ii; + int nOldCol = pTab->nCol; + for(ii=0; ii<nCol; ii++){ + if( ii<pTab->nCol ){ + if( pTab->abPK[ii]!=abPK[ii] ){ + pSession->rc = SQLITE_SCHEMA; + } + }else if( abPK[ii] ){ + pSession->rc = SQLITE_SCHEMA; + } + } + + if( pSession->rc==SQLITE_OK ){ + const char **a = pTab->azCol; + pTab->azCol = azCol; + pTab->nCol = nCol; + pTab->azDflt = azDflt; + pTab->abPK = abPK; + azCol = a; + } + if( pSession->bEnableSize ){ + pSession->nMaxChangesetSize += (nCol - nOldCol); + pSession->nMaxChangesetSize += sessionVarintLen(nCol); + pSession->nMaxChangesetSize -= sessionVarintLen(nOldCol); + } + } + } + + sqlite3_free((char*)azCol); + return pSession->rc; +} + +/* +** Session-change object (*pp) contains an old.* record with fewer than +** nCol fields. This function updates it with the default values for +** the missing fields. +*/ +static void sessionUpdateOneChange( + sqlite3_session *pSession, /* For memory accounting */ + int *pRc, /* IN/OUT: Error code */ + SessionChange **pp, /* IN/OUT: Change object to update */ + int nCol, /* Number of columns now in table */ + sqlite3_stmt *pDflt /* SELECT <default-values...> */ +){ + SessionChange *pOld = *pp; + + while( pOld->nRecordField<nCol ){ + SessionChange *pNew = 0; + int nByte = 0; + int nIncr = 0; + int iField = pOld->nRecordField; + int eType = sqlite3_column_type(pDflt, iField); + switch( eType ){ + case SQLITE_NULL: + nIncr = 1; + break; + case SQLITE_INTEGER: + case SQLITE_FLOAT: + nIncr = 9; + break; + default: { + int n = sqlite3_column_bytes(pDflt, iField); + nIncr = 1 + sessionVarintLen(n) + n; + assert( eType==SQLITE_TEXT || eType==SQLITE_BLOB ); + break; + } + } + + nByte = nIncr + (sizeof(SessionChange) + pOld->nRecord); + pNew = sessionMalloc64(pSession, nByte); + if( pNew==0 ){ + *pRc = SQLITE_NOMEM; + return; + }else{ + memcpy(pNew, pOld, sizeof(SessionChange)); + pNew->aRecord = (u8*)&pNew[1]; + memcpy(pNew->aRecord, pOld->aRecord, pOld->nRecord); + pNew->aRecord[pNew->nRecord++] = (u8)eType; + switch( eType ){ + case SQLITE_INTEGER: { + i64 iVal = sqlite3_column_int64(pDflt, iField); + sessionPutI64(&pNew->aRecord[pNew->nRecord], iVal); + pNew->nRecord += 8; + break; + } + + case SQLITE_FLOAT: { + double rVal = sqlite3_column_double(pDflt, iField); + i64 iVal = 0; + memcpy(&iVal, &rVal, sizeof(rVal)); + sessionPutI64(&pNew->aRecord[pNew->nRecord], iVal); + pNew->nRecord += 8; + break; + } + + case SQLITE_TEXT: { + int n = sqlite3_column_bytes(pDflt, iField); + const char *z = (const char*)sqlite3_column_text(pDflt, iField); + pNew->nRecord += sessionVarintPut(&pNew->aRecord[pNew->nRecord], n); + memcpy(&pNew->aRecord[pNew->nRecord], z, n); + pNew->nRecord += n; + break; + } + + case SQLITE_BLOB: { + int n = sqlite3_column_bytes(pDflt, iField); + const u8 *z = (const u8*)sqlite3_column_blob(pDflt, iField); + pNew->nRecord += sessionVarintPut(&pNew->aRecord[pNew->nRecord], n); + memcpy(&pNew->aRecord[pNew->nRecord], z, n); + pNew->nRecord += n; + break; + } + + default: + assert( eType==SQLITE_NULL ); + break; + } + + sessionFree(pSession, pOld); + *pp = pOld = pNew; + pNew->nRecordField++; + pNew->nMaxSize += nIncr; + if( pSession ){ + pSession->nMaxChangesetSize += nIncr; + } + } + } +} + +/* +** Ensure that there is room in the buffer to append nByte bytes of data. +** If not, use sqlite3_realloc() to grow the buffer so that there is. +** +** If successful, return zero. Otherwise, if an OOM condition is encountered, +** set *pRc to SQLITE_NOMEM and return non-zero. +*/ +static int sessionBufferGrow(SessionBuffer *p, i64 nByte, int *pRc){ +#define SESSION_MAX_BUFFER_SZ (0x7FFFFF00 - 1) + i64 nReq = p->nBuf + nByte; + if( *pRc==SQLITE_OK && nReq>p->nAlloc ){ + u8 *aNew; + i64 nNew = p->nAlloc ? p->nAlloc : 128; + + do { + nNew = nNew*2; + }while( nNew<nReq ); + + /* The value of SESSION_MAX_BUFFER_SZ is copied from the implementation + ** of sqlite3_realloc64(). Allocations greater than this size in bytes + ** always fail. It is used here to ensure that this routine can always + ** allocate up to this limit - instead of up to the largest power of + ** two smaller than the limit. */ + if( nNew>SESSION_MAX_BUFFER_SZ ){ + nNew = SESSION_MAX_BUFFER_SZ; + if( nNew<nReq ){ + *pRc = SQLITE_NOMEM; + return 1; + } + } + + aNew = (u8 *)sqlite3_realloc64(p->aBuf, nNew); + if( 0==aNew ){ + *pRc = SQLITE_NOMEM; + }else{ + p->aBuf = aNew; + p->nAlloc = nNew; + } + } + return (*pRc!=SQLITE_OK); +} + + +/* +** This function is a no-op if *pRc is other than SQLITE_OK when it is +** called. Otherwise, append a string to the buffer. All bytes in the string +** up to (but not including) the nul-terminator are written to the buffer. +** +** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before +** returning. +*/ +static void sessionAppendStr( + SessionBuffer *p, + const char *zStr, + int *pRc +){ + int nStr = sqlite3Strlen30(zStr); + if( 0==sessionBufferGrow(p, nStr+1, pRc) ){ + memcpy(&p->aBuf[p->nBuf], zStr, nStr); + p->nBuf += nStr; + p->aBuf[p->nBuf] = 0x00; + } +} + +/* +** Format a string using printf() style formatting and then append it to the +** buffer using sessionAppendString(). +*/ +static void sessionAppendPrintf( + SessionBuffer *p, /* Buffer to append to */ + int *pRc, + const char *zFmt, + ... +){ + if( *pRc==SQLITE_OK ){ + char *zApp = 0; + va_list ap; + va_start(ap, zFmt); + zApp = sqlite3_vmprintf(zFmt, ap); + if( zApp==0 ){ + *pRc = SQLITE_NOMEM; + }else{ + sessionAppendStr(p, zApp, pRc); + } + va_end(ap); + sqlite3_free(zApp); + } +} + +/* +** Prepare a statement against database handle db that SELECTs a single +** row containing the default values for each column in table pTab. For +** example, if pTab is declared as: +** +** CREATE TABLE pTab(a PRIMARY KEY, b DEFAULT 123, c DEFAULT 'abcd'); +** +** Then this function prepares and returns the SQL statement: +** +** SELECT NULL, 123, 'abcd'; +*/ +static int sessionPrepareDfltStmt( + sqlite3 *db, /* Database handle */ + SessionTable *pTab, /* Table to prepare statement for */ + sqlite3_stmt **ppStmt /* OUT: Statement handle */ +){ + SessionBuffer sql = {0,0,0}; + int rc = SQLITE_OK; + const char *zSep = " "; + int ii = 0; + + *ppStmt = 0; + sessionAppendPrintf(&sql, &rc, "SELECT"); + for(ii=0; ii<pTab->nCol; ii++){ + const char *zDflt = pTab->azDflt[ii] ? pTab->azDflt[ii] : "NULL"; + sessionAppendPrintf(&sql, &rc, "%s%s", zSep, zDflt); + zSep = ", "; + } + if( rc==SQLITE_OK ){ + rc = sqlite3_prepare_v2(db, (const char*)sql.aBuf, -1, ppStmt, 0); + } + sqlite3_free(sql.aBuf); + + return rc; +} + +/* +** Table pTab has one or more existing change-records with old.* records +** with fewer than pTab->nCol columns. This function updates all such +** change-records with the default values for the missing columns. +*/ +static int sessionUpdateChanges(sqlite3_session *pSession, SessionTable *pTab){ + sqlite3_stmt *pStmt = 0; + int rc = pSession->rc; + + rc = sessionPrepareDfltStmt(pSession->db, pTab, &pStmt); + if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){ + int ii = 0; + SessionChange **pp = 0; + for(ii=0; ii<pTab->nChange; ii++){ + for(pp=&pTab->apChange[ii]; *pp; pp=&((*pp)->pNext)){ + if( (*pp)->nRecordField!=pTab->nCol ){ + sessionUpdateOneChange(pSession, &rc, pp, pTab->nCol, pStmt); + } + } + } + } + + pSession->rc = rc; + rc = sqlite3_finalize(pStmt); + if( pSession->rc==SQLITE_OK ) pSession->rc = rc; + return pSession->rc; } /* @@ -211630,6 +224561,7 @@ static int sessionUpdateMaxSize( ){ i64 nNew = 2; if( pC->op==SQLITE_INSERT ){ + if( pTab->bRowid ) nNew += 9; if( op!=SQLITE_DELETE ){ int ii; for(ii=0; ii<pTab->nCol; ii++){ @@ -211646,12 +224578,16 @@ static int sessionUpdateMaxSize( }else{ int ii; u8 *pCsr = pC->aRecord; - for(ii=0; ii<pTab->nCol; ii++){ + if( pTab->bRowid ){ + nNew += 9 + 1; + pCsr += 9; + } + for(ii=pTab->bRowid; ii<pTab->nCol; ii++){ int bChanged = 1; int nOld = 0; int eType; sqlite3_value *p = 0; - pSession->hook.xNew(pSession->hook.pCtx, ii, &p); + pSession->hook.xNew(pSession->hook.pCtx, ii-pTab->bRowid, &p); if( p==0 ){ return SQLITE_NOMEM; } @@ -211730,22 +224666,29 @@ static int sessionUpdateMaxSize( */ static void sessionPreupdateOneChange( int op, /* One of SQLITE_UPDATE, INSERT, DELETE */ + i64 iRowid, sqlite3_session *pSession, /* Session object pTab is attached to */ SessionTable *pTab /* Table that change applies to */ ){ int iHash; int bNull = 0; int rc = SQLITE_OK; + int nExpect = 0; SessionStat1Ctx stat1 = {{0,0,0,0,0},0}; if( pSession->rc ) return; /* Load table details if required */ - if( sessionInitTable(pSession, pTab) ) return; + if( sessionInitTable(pSession, pTab, pSession->db, pSession->zDb) ) return; /* Check the number of columns in this xPreUpdate call matches the ** number of columns in the table. */ - if( pTab->nCol!=pSession->hook.xCount(pSession->hook.pCtx) ){ + nExpect = pSession->hook.xCount(pSession->hook.pCtx); + if( (pTab->nCol-pTab->bRowid)<nExpect ){ + if( sessionReinitTable(pSession, pTab) ) return; + if( sessionUpdateChanges(pSession, pTab) ) return; + } + if( (pTab->nCol-pTab->bRowid)!=nExpect ){ pSession->rc = SQLITE_SCHEMA; return; } @@ -211778,14 +224721,16 @@ static void sessionPreupdateOneChange( /* Calculate the hash-key for this change. If the primary key of the row ** includes a NULL value, exit early. Such changes are ignored by the ** session module. */ - rc = sessionPreupdateHash(pSession, pTab, op==SQLITE_INSERT, &iHash, &bNull); + rc = sessionPreupdateHash( + pSession, iRowid, pTab, op==SQLITE_INSERT, &iHash, &bNull + ); if( rc!=SQLITE_OK ) goto error_out; if( bNull==0 ){ /* Search the hash table for an existing record for this row. */ SessionChange *pC; for(pC=pTab->apChange[iHash]; pC; pC=pC->pNext){ - if( sessionPreupdateEqual(pSession, pTab, pC, op) ) break; + if( sessionPreupdateEqual(pSession, iRowid, pTab, pC, op) ) break; } if( pC==0 ){ @@ -211800,7 +224745,7 @@ static void sessionPreupdateOneChange( /* Figure out how large an allocation is required */ nByte = sizeof(SessionChange); - for(i=0; i<pTab->nCol; i++){ + for(i=0; i<(pTab->nCol-pTab->bRowid); i++){ sqlite3_value *p = 0; if( op!=SQLITE_INSERT ){ TESTONLY(int trc = ) pSession->hook.xOld(pSession->hook.pCtx, i, &p); @@ -211815,9 +224760,12 @@ static void sessionPreupdateOneChange( rc = sessionSerializeValue(0, p, &nByte); if( rc!=SQLITE_OK ) goto error_out; } + if( pTab->bRowid ){ + nByte += 9; /* Size of rowid field - an integer */ + } /* Allocate the change object */ - pC = (SessionChange *)sessionMalloc64(pSession, nByte); + pC = (SessionChange*)sessionMalloc64(pSession, nByte); if( !pC ){ rc = SQLITE_NOMEM; goto error_out; @@ -211831,7 +224779,12 @@ static void sessionPreupdateOneChange( ** required values and encodings have already been cached in memory. ** It is not possible for an OOM to occur in this block. */ nByte = 0; - for(i=0; i<pTab->nCol; i++){ + if( pTab->bRowid ){ + pC->aRecord[0] = SQLITE_INTEGER; + sessionPutI64(&pC->aRecord[1], iRowid); + nByte = 9; + } + for(i=0; i<(pTab->nCol-pTab->bRowid); i++){ sqlite3_value *p = 0; if( op!=SQLITE_INSERT ){ pSession->hook.xOld(pSession->hook.pCtx, i, &p); @@ -211845,6 +224798,7 @@ static void sessionPreupdateOneChange( if( pSession->bIndirect || pSession->hook.xDepth(pSession->hook.pCtx) ){ pC->bIndirect = 1; } + pC->nRecordField = pTab->nCol; pC->nRecord = nByte; pC->op = op; pC->pNext = pTab->apChange[iHash]; @@ -211930,6 +224884,8 @@ static void xPreUpdate( int nDb = sqlite3Strlen30(zDb); assert( sqlite3_mutex_held(db->mutex) ); + (void)iKey1; + (void)iKey2; for(pSession=(sqlite3_session *)pCtx; pSession; pSession=pSession->pNext){ SessionTable *pTab; @@ -211944,9 +224900,10 @@ static void xPreUpdate( pSession->rc = sessionFindTable(pSession, zName, &pTab); if( pTab ){ assert( pSession->rc==SQLITE_OK ); - sessionPreupdateOneChange(op, pSession, pTab); + assert( op==SQLITE_UPDATE || iKey1==iKey2 ); + sessionPreupdateOneChange(op, iKey1, pSession, pTab); if( op==SQLITE_UPDATE ){ - sessionPreupdateOneChange(SQLITE_INSERT, pSession, pTab); + sessionPreupdateOneChange(SQLITE_INSERT, iKey2, pSession, pTab); } } } @@ -211985,6 +224942,7 @@ static void sessionPreupdateHooks( typedef struct SessionDiffCtx SessionDiffCtx; struct SessionDiffCtx { sqlite3_stmt *pStmt; + int bRowid; int nOldOff; }; @@ -211993,19 +224951,20 @@ struct SessionDiffCtx { */ static int sessionDiffOld(void *pCtx, int iVal, sqlite3_value **ppVal){ SessionDiffCtx *p = (SessionDiffCtx*)pCtx; - *ppVal = sqlite3_column_value(p->pStmt, iVal+p->nOldOff); + *ppVal = sqlite3_column_value(p->pStmt, iVal+p->nOldOff+p->bRowid); return SQLITE_OK; } static int sessionDiffNew(void *pCtx, int iVal, sqlite3_value **ppVal){ SessionDiffCtx *p = (SessionDiffCtx*)pCtx; - *ppVal = sqlite3_column_value(p->pStmt, iVal); + *ppVal = sqlite3_column_value(p->pStmt, iVal+p->bRowid); return SQLITE_OK; } static int sessionDiffCount(void *pCtx){ SessionDiffCtx *p = (SessionDiffCtx*)pCtx; - return p->nOldOff ? p->nOldOff : sqlite3_column_count(p->pStmt); + return (p->nOldOff ? p->nOldOff : sqlite3_column_count(p->pStmt)) - p->bRowid; } static int sessionDiffDepth(void *pCtx){ + (void)pCtx; return 0; } @@ -212079,17 +225038,18 @@ static char *sessionExprCompareOther( } static char *sessionSelectFindNew( - int nCol, const char *zDb1, /* Pick rows in this db only */ const char *zDb2, /* But not in this one */ + int bRowid, const char *zTbl, /* Table name */ const char *zExpr ){ + const char *zSel = (bRowid ? SESSIONS_ROWID ", *" : "*"); char *zRet = sqlite3_mprintf( - "SELECT * FROM \"%w\".\"%w\" WHERE NOT EXISTS (" + "SELECT %s FROM \"%w\".\"%w\" WHERE NOT EXISTS (" " SELECT 1 FROM \"%w\".\"%w\" WHERE %s" ")", - zDb1, zTbl, zDb2, zTbl, zExpr + zSel, zDb1, zTbl, zDb2, zTbl, zExpr ); return zRet; } @@ -212103,7 +225063,9 @@ static int sessionDiffFindNew( char *zExpr ){ int rc = SQLITE_OK; - char *zStmt = sessionSelectFindNew(pTab->nCol, zDb1, zDb2, pTab->zName,zExpr); + char *zStmt = sessionSelectFindNew( + zDb1, zDb2, pTab->bRowid, pTab->zName, zExpr + ); if( zStmt==0 ){ rc = SQLITE_NOMEM; @@ -212114,8 +225076,10 @@ static int sessionDiffFindNew( SessionDiffCtx *pDiffCtx = (SessionDiffCtx*)pSession->hook.pCtx; pDiffCtx->pStmt = pStmt; pDiffCtx->nOldOff = 0; + pDiffCtx->bRowid = pTab->bRowid; while( SQLITE_ROW==sqlite3_step(pStmt) ){ - sessionPreupdateOneChange(op, pSession, pTab); + i64 iRowid = (pTab->bRowid ? sqlite3_column_int64(pStmt, 0) : 0); + sessionPreupdateOneChange(op, iRowid, pSession, pTab); } rc = sqlite3_finalize(pStmt); } @@ -212125,6 +225089,27 @@ static int sessionDiffFindNew( return rc; } +/* +** Return a comma-separated list of the fully-qualified (with both database +** and table name) column names from table pTab. e.g. +** +** "main"."t1"."a", "main"."t1"."b", "main"."t1"."c" +*/ +static char *sessionAllCols( + const char *zDb, + SessionTable *pTab +){ + int ii; + char *zRet = 0; + for(ii=0; ii<pTab->nCol; ii++){ + zRet = sqlite3_mprintf("%z%s\"%w\".\"%w\".\"%w\"", + zRet, (zRet ? ", " : ""), zDb, pTab->zName, pTab->azCol[ii] + ); + if( !zRet ) break; + } + return zRet; +} + static int sessionDiffFindModified( sqlite3_session *pSession, SessionTable *pTab, @@ -212139,11 +225124,13 @@ static int sessionDiffFindModified( if( zExpr2==0 ){ rc = SQLITE_NOMEM; }else{ + char *z1 = sessionAllCols(pSession->zDb, pTab); + char *z2 = sessionAllCols(zFrom, pTab); char *zStmt = sqlite3_mprintf( - "SELECT * FROM \"%w\".\"%w\", \"%w\".\"%w\" WHERE %s AND (%z)", - pSession->zDb, pTab->zName, zFrom, pTab->zName, zExpr, zExpr2 + "SELECT %s,%s FROM \"%w\".\"%w\", \"%w\".\"%w\" WHERE %s AND (%z)", + z1, z2, pSession->zDb, pTab->zName, zFrom, pTab->zName, zExpr, zExpr2 ); - if( zStmt==0 ){ + if( zStmt==0 || z1==0 || z2==0 ){ rc = SQLITE_NOMEM; }else{ sqlite3_stmt *pStmt; @@ -212154,12 +225141,15 @@ static int sessionDiffFindModified( pDiffCtx->pStmt = pStmt; pDiffCtx->nOldOff = pTab->nCol; while( SQLITE_ROW==sqlite3_step(pStmt) ){ - sessionPreupdateOneChange(SQLITE_UPDATE, pSession, pTab); + i64 iRowid = (pTab->bRowid ? sqlite3_column_int64(pStmt, 0) : 0); + sessionPreupdateOneChange(SQLITE_UPDATE, iRowid, pSession, pTab); } rc = sqlite3_finalize(pStmt); } - sqlite3_free(zStmt); } + sqlite3_free(zStmt); + sqlite3_free(z1); + sqlite3_free(z2); } return rc; @@ -212188,7 +225178,7 @@ SQLITE_API int sqlite3session_diff( /* Locate and if necessary initialize the target table object */ rc = sessionFindTable(pSession, zTbl, &pTo); if( pTo==0 ) goto diff_out; - if( sessionInitTable(pSession, pTo) ){ + if( sessionInitTable(pSession, pTo, pSession->db, pSession->zDb) ){ rc = pSession->rc; goto diff_out; } @@ -212198,9 +225188,12 @@ SQLITE_API int sqlite3session_diff( int bHasPk = 0; int bMismatch = 0; int nCol; /* Columns in zFrom.zTbl */ + int bRowid = 0; u8 *abPK; const char **azCol = 0; - rc = sessionTableInfo(0, db, zFrom, zTbl, &nCol, 0, &azCol, &abPK); + rc = sessionTableInfo(0, db, zFrom, zTbl, &nCol, 0, &azCol, 0, &abPK, + pSession->bImplicitPK ? &bRowid : 0 + ); if( rc==SQLITE_OK ){ if( pTo->nCol!=nCol ){ bMismatch = 1; @@ -212313,6 +225306,7 @@ static void sessionDeleteTable(sqlite3_session *pSession, SessionTable *pList){ sessionFree(pSession, p); } } + sqlite3_finalize(pTab->pDfltStmt); sessionFree(pSession, (char*)pTab->azCol); /* cast works around VC++ bug */ sessionFree(pSession, pTab->apChange); sessionFree(pSession, pTab); @@ -212345,9 +225339,7 @@ SQLITE_API void sqlite3session_delete(sqlite3_session *pSession){ ** associated hash-tables. */ sessionDeleteTable(pSession, pSession->pTable); - /* Assert that all allocations have been freed and then free the - ** session object itself. */ - assert( pSession->nMalloc==0 ); + /* Free the session object. */ sqlite3_free(pSession); } @@ -212419,48 +225411,6 @@ SQLITE_API int sqlite3session_attach( } /* -** Ensure that there is room in the buffer to append nByte bytes of data. -** If not, use sqlite3_realloc() to grow the buffer so that there is. -** -** If successful, return zero. Otherwise, if an OOM condition is encountered, -** set *pRc to SQLITE_NOMEM and return non-zero. -*/ -static int sessionBufferGrow(SessionBuffer *p, i64 nByte, int *pRc){ -#define SESSION_MAX_BUFFER_SZ (0x7FFFFF00 - 1) - i64 nReq = p->nBuf + nByte; - if( *pRc==SQLITE_OK && nReq>p->nAlloc ){ - u8 *aNew; - i64 nNew = p->nAlloc ? p->nAlloc : 128; - - do { - nNew = nNew*2; - }while( nNew<nReq ); - - /* The value of SESSION_MAX_BUFFER_SZ is copied from the implementation - ** of sqlite3_realloc64(). Allocations greater than this size in bytes - ** always fail. It is used here to ensure that this routine can always - ** allocate up to this limit - instead of up to the largest power of - ** two smaller than the limit. */ - if( nNew>SESSION_MAX_BUFFER_SZ ){ - nNew = SESSION_MAX_BUFFER_SZ; - if( nNew<nReq ){ - *pRc = SQLITE_NOMEM; - return 1; - } - } - - aNew = (u8 *)sqlite3_realloc64(p->aBuf, nNew); - if( 0==aNew ){ - *pRc = SQLITE_NOMEM; - }else{ - p->aBuf = aNew; - p->nAlloc = nNew; - } - } - return (*pRc!=SQLITE_OK); -} - -/* ** Append the value passed as the second argument to the buffer passed ** as the first. ** @@ -212530,26 +225480,6 @@ static void sessionAppendBlob( /* ** This function is a no-op if *pRc is other than SQLITE_OK when it is -** called. Otherwise, append a string to the buffer. All bytes in the string -** up to (but not including) the nul-terminator are written to the buffer. -** -** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before -** returning. -*/ -static void sessionAppendStr( - SessionBuffer *p, - const char *zStr, - int *pRc -){ - int nStr = sqlite3Strlen30(zStr); - if( 0==sessionBufferGrow(p, nStr, pRc) ){ - memcpy(&p->aBuf[p->nBuf], zStr, nStr); - p->nBuf += nStr; - } -} - -/* -** This function is a no-op if *pRc is other than SQLITE_OK when it is ** called. Otherwise, append the string representation of integer iVal ** to the buffer. No nul-terminator is written. ** @@ -212580,7 +225510,7 @@ static void sessionAppendIdent( const char *zStr, /* String to quote, escape and append */ int *pRc /* IN/OUT: Error code */ ){ - int nStr = sqlite3Strlen30(zStr)*2 + 2 + 1; + int nStr = sqlite3Strlen30(zStr)*2 + 2 + 2; if( 0==sessionBufferGrow(p, nStr, pRc) ){ char *zOut = (char *)&p->aBuf[p->nBuf]; const char *zIn = zStr; @@ -212591,6 +225521,7 @@ static void sessionAppendIdent( } *zOut++ = '"'; p->nBuf = (int)((u8 *)zOut - p->aBuf); + p->aBuf[p->nBuf] = 0x00; } } @@ -212726,7 +225657,7 @@ static int sessionAppendUpdate( /* If at least one field has been modified, this is not a no-op. */ if( bChanged ) bNoop = 0; - /* Add a field to the old.* record. This is omitted if this modules is + /* Add a field to the old.* record. This is omitted if this module is ** currently generating a patchset. */ if( bPatchset==0 ){ if( bChanged || abPK[i] ){ @@ -212815,12 +225746,20 @@ static int sessionAppendDelete( ** Formulate and prepare a SELECT statement to retrieve a row from table ** zTab in database zDb based on its primary key. i.e. ** -** SELECT * FROM zDb.zTab WHERE pk1 = ? AND pk2 = ? AND ... +** SELECT *, <noop-test> FROM zDb.zTab WHERE (pk1, pk2,...) IS (?1, ?2,...) +** +** where <noop-test> is: +** +** 1 AND (?A OR ?1 IS <column>) AND ... +** +** for each non-pk <column>. */ static int sessionSelectStmt( sqlite3 *db, /* Database handle */ + int bIgnoreNoop, const char *zDb, /* Database name */ const char *zTab, /* Table name */ + int bRowid, int nCol, /* Number of columns in table */ const char **azCol, /* Names of table columns */ u8 *abPK, /* PRIMARY KEY array */ @@ -212828,16 +225767,57 @@ static int sessionSelectStmt( ){ int rc = SQLITE_OK; char *zSql = 0; + const char *zSep = ""; + const char *zCols = bRowid ? SESSIONS_ROWID ", *" : "*"; int nSql = -1; + int i; + + SessionBuffer nooptest = {0, 0, 0}; + SessionBuffer pkfield = {0, 0, 0}; + SessionBuffer pkvar = {0, 0, 0}; + + sessionAppendStr(&nooptest, ", 1", &rc); if( 0==sqlite3_stricmp("sqlite_stat1", zTab) ){ + sessionAppendStr(&nooptest, " AND (?6 OR ?3 IS stat)", &rc); + sessionAppendStr(&pkfield, "tbl, idx", &rc); + sessionAppendStr(&pkvar, + "?1, (CASE WHEN ?2=X'' THEN NULL ELSE ?2 END)", &rc + ); + zCols = "tbl, ?2, stat"; + }else{ + for(i=0; i<nCol; i++){ + if( abPK[i] ){ + sessionAppendStr(&pkfield, zSep, &rc); + sessionAppendStr(&pkvar, zSep, &rc); + zSep = ", "; + sessionAppendIdent(&pkfield, azCol[i], &rc); + sessionAppendPrintf(&pkvar, &rc, "?%d", i+1); + }else{ + sessionAppendPrintf(&nooptest, &rc, + " AND (?%d OR ?%d IS %w.%w)", i+1+nCol, i+1, zTab, azCol[i] + ); + } + } + } + + if( rc==SQLITE_OK ){ + zSql = sqlite3_mprintf( + "SELECT %s%s FROM %Q.%Q WHERE (%s) IS (%s)", + zCols, (bIgnoreNoop ? (char*)nooptest.aBuf : ""), + zDb, zTab, (char*)pkfield.aBuf, (char*)pkvar.aBuf + ); + if( zSql==0 ) rc = SQLITE_NOMEM; + } + +#if 0 + if( 0==sqlite3_stricmp("sqlite_stat1", zTab) ){ zSql = sqlite3_mprintf( "SELECT tbl, ?2, stat FROM %Q.sqlite_stat1 WHERE tbl IS ?1 AND " "idx IS (CASE WHEN ?2=X'' THEN NULL ELSE ?2 END)", zDb ); if( zSql==0 ) rc = SQLITE_NOMEM; }else{ - int i; const char *zSep = ""; SessionBuffer buf = {0, 0, 0}; @@ -212858,11 +225838,15 @@ static int sessionSelectStmt( zSql = (char*)buf.aBuf; nSql = buf.nBuf; } +#endif if( rc==SQLITE_OK ){ rc = sqlite3_prepare_v2(db, zSql, nSql, ppStmt, 0); } sqlite3_free(zSql); + sqlite3_free(nooptest.aBuf); + sqlite3_free(pkfield.aBuf); + sqlite3_free(pkvar.aBuf); return rc; } @@ -213002,18 +225986,16 @@ static int sessionGenerateChangeset( for(pTab=pSession->pTable; rc==SQLITE_OK && pTab; pTab=pTab->pNext){ if( pTab->nEntry ){ const char *zName = pTab->zName; - int nCol = 0; /* Number of columns in table */ - u8 *abPK = 0; /* Primary key array */ - const char **azCol = 0; /* Table columns */ int i; /* Used to iterate through hash buckets */ sqlite3_stmt *pSel = 0; /* SELECT statement to query table pTab */ int nRewind = buf.nBuf; /* Initial size of write buffer */ int nNoop; /* Size of buffer after writing tbl header */ + int nOldCol = pTab->nCol; /* Check the table schema is still Ok. */ - rc = sessionTableInfo(0, db, pSession->zDb, zName, &nCol, 0,&azCol,&abPK); - if( !rc && (pTab->nCol!=nCol || memcmp(abPK, pTab->abPK, nCol)) ){ - rc = SQLITE_SCHEMA; + rc = sessionReinitTable(pSession, pTab); + if( rc==SQLITE_OK && pTab->nCol!=nOldCol ){ + rc = sessionUpdateChanges(pSession, pTab); } /* Write a table header */ @@ -213021,8 +226003,9 @@ static int sessionGenerateChangeset( /* Build and compile a statement to execute: */ if( rc==SQLITE_OK ){ - rc = sessionSelectStmt( - db, pSession->zDb, zName, nCol, azCol, abPK, &pSel); + rc = sessionSelectStmt(db, 0, pSession->zDb, + zName, pTab->bRowid, pTab->nCol, pTab->azCol, pTab->abPK, &pSel + ); } nNoop = buf.nBuf; @@ -213030,22 +226013,22 @@ static int sessionGenerateChangeset( SessionChange *p; /* Used to iterate through changes */ for(p=pTab->apChange[i]; rc==SQLITE_OK && p; p=p->pNext){ - rc = sessionSelectBind(pSel, nCol, abPK, p); + rc = sessionSelectBind(pSel, pTab->nCol, pTab->abPK, p); if( rc!=SQLITE_OK ) continue; if( sqlite3_step(pSel)==SQLITE_ROW ){ if( p->op==SQLITE_INSERT ){ int iCol; sessionAppendByte(&buf, SQLITE_INSERT, &rc); sessionAppendByte(&buf, p->bIndirect, &rc); - for(iCol=0; iCol<nCol; iCol++){ + for(iCol=0; iCol<pTab->nCol; iCol++){ sessionAppendCol(&buf, pSel, iCol, &rc); } }else{ - assert( abPK!=0 ); /* Because sessionSelectStmt() returned ok */ - rc = sessionAppendUpdate(&buf, bPatchset, pSel, p, abPK); + assert( pTab->abPK!=0 ); + rc = sessionAppendUpdate(&buf, bPatchset, pSel, p, pTab->abPK); } }else if( p->op!=SQLITE_INSERT ){ - rc = sessionAppendDelete(&buf, bPatchset, p, nCol, abPK); + rc = sessionAppendDelete(&buf, bPatchset, p, pTab->nCol,pTab->abPK); } if( rc==SQLITE_OK ){ rc = sqlite3_reset(pSel); @@ -213070,7 +226053,6 @@ static int sessionGenerateChangeset( if( buf.nBuf==nNoop ){ buf.nBuf = nRewind; } - sqlite3_free((char*)azCol); /* cast works around VC++ bug */ } } @@ -213105,7 +226087,7 @@ SQLITE_API int sqlite3session_changeset( int rc; if( pnChangeset==0 || ppChangeset==0 ) return SQLITE_MISUSE; - rc = sessionGenerateChangeset(pSession, 0, 0, 0, pnChangeset,ppChangeset); + rc = sessionGenerateChangeset(pSession, 0, 0, 0, pnChangeset, ppChangeset); assert( rc || pnChangeset==0 || pSession->bEnableSize==0 || *pnChangeset<=pSession->nMaxChangesetSize ); @@ -213223,6 +226205,19 @@ SQLITE_API int sqlite3session_object_config(sqlite3_session *pSession, int op, v break; } + case SQLITE_SESSION_OBJCONFIG_ROWID: { + int iArg = *(int*)pArg; + if( iArg>=0 ){ + if( pSession->pTable ){ + rc = SQLITE_MISUSE; + }else{ + pSession->bImplicitPK = (iArg!=0); + } + } + *(int*)pArg = pSession->bImplicitPK; + break; + } + default: rc = SQLITE_MISUSE; } @@ -213481,15 +226476,19 @@ static int sessionReadRecord( } } if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){ - sqlite3_int64 v = sessionGetI64(aVal); - if( eType==SQLITE_INTEGER ){ - sqlite3VdbeMemSetInt64(apOut[i], v); + if( (pIn->nData-pIn->iNext)<8 ){ + rc = SQLITE_CORRUPT_BKPT; }else{ - double d; - memcpy(&d, &v, 8); - sqlite3VdbeMemSetDouble(apOut[i], d); + sqlite3_int64 v = sessionGetI64(aVal); + if( eType==SQLITE_INTEGER ){ + sqlite3VdbeMemSetInt64(apOut[i], v); + }else{ + double d; + memcpy(&d, &v, 8); + sqlite3VdbeMemSetDouble(apOut[i], d); + } + pIn->iNext += 8; } - pIn->iNext += 8; } } } @@ -213758,6 +226757,22 @@ static int sessionChangesetNextOne( if( p->op==SQLITE_INSERT ) p->op = SQLITE_DELETE; else if( p->op==SQLITE_DELETE ) p->op = SQLITE_INSERT; } + + /* If this is an UPDATE that is part of a changeset, then check that + ** there are no fields in the old.* record that are not (a) PK fields, + ** or (b) also present in the new.* record. + ** + ** Such records are technically corrupt, but the rebaser was at one + ** point generating them. Under most circumstances this is benign, but + ** can cause spurious SQLITE_RANGE errors when applying the changeset. */ + if( p->bPatchset==0 && p->op==SQLITE_UPDATE){ + for(i=0; i<p->nCol; i++){ + if( p->abPK[i]==0 && p->apValue[i+p->nCol]==0 ){ + sqlite3ValueFree(p->apValue[i]); + p->apValue[i] = 0; + } + } + } } return SQLITE_ROW; @@ -214195,6 +227210,8 @@ struct SessionApplyCtx { SessionBuffer rebase; /* Rebase information (if any) here */ u8 bRebaseStarted; /* If table header is already in rebase */ u8 bRebase; /* True to collect rebase information */ + u8 bIgnoreNoop; /* True to ignore no-op conflicts */ + int bRowid; }; /* Number of prepared UPDATE statements to cache. */ @@ -214445,8 +227462,10 @@ static int sessionSelectRow( const char *zTab, /* Table name */ SessionApplyCtx *p /* Session changeset-apply context */ ){ - return sessionSelectStmt( - db, "main", zTab, p->nCol, p->azCol, p->abPK, &p->pSelect); + /* TODO */ + return sessionSelectStmt(db, p->bIgnoreNoop, + "main", zTab, p->bRowid, p->nCol, p->azCol, p->abPK, &p->pSelect + ); } /* @@ -214604,22 +227623,34 @@ static int sessionBindRow( ** UPDATE, bind values from the old.* record. */ static int sessionSeekToRow( - sqlite3 *db, /* Database handle */ sqlite3_changeset_iter *pIter, /* Changeset iterator */ - u8 *abPK, /* Primary key flags array */ - sqlite3_stmt *pSelect /* SELECT statement from sessionSelectRow() */ + SessionApplyCtx *p ){ + sqlite3_stmt *pSelect = p->pSelect; int rc; /* Return code */ int nCol; /* Number of columns in table */ int op; /* Changset operation (SQLITE_UPDATE etc.) */ const char *zDummy; /* Unused */ + sqlite3_clear_bindings(pSelect); sqlite3changeset_op(pIter, &zDummy, &nCol, &op, 0); rc = sessionBindRow(pIter, op==SQLITE_INSERT ? sqlite3changeset_new : sqlite3changeset_old, - nCol, abPK, pSelect + nCol, p->abPK, pSelect ); + if( op!=SQLITE_DELETE && p->bIgnoreNoop ){ + int ii; + for(ii=0; rc==SQLITE_OK && ii<nCol; ii++){ + if( p->abPK[ii]==0 ){ + sqlite3_value *pVal = 0; + sqlite3changeset_new(pIter, ii, &pVal); + sqlite3_bind_int(pSelect, ii+1+nCol, (pVal==0)); + if( pVal ) rc = sessionBindValue(pSelect, ii+1, pVal); + } + } + } + if( rc==SQLITE_OK ){ rc = sqlite3_step(pSelect); if( rc!=SQLITE_ROW ) rc = sqlite3_reset(pSelect); @@ -214734,16 +227765,22 @@ static int sessionConflictHandler( /* Bind the new.* PRIMARY KEY values to the SELECT statement. */ if( pbReplace ){ - rc = sessionSeekToRow(p->db, pIter, p->abPK, p->pSelect); + rc = sessionSeekToRow(pIter, p); }else{ rc = SQLITE_OK; } if( rc==SQLITE_ROW ){ /* There exists another row with the new.* primary key. */ - pIter->pConflict = p->pSelect; - res = xConflict(pCtx, eType, pIter); - pIter->pConflict = 0; + if( p->bIgnoreNoop + && sqlite3_column_int(p->pSelect, sqlite3_column_count(p->pSelect)-1) + ){ + res = SQLITE_CHANGESET_OMIT; + }else{ + pIter->pConflict = p->pSelect; + res = xConflict(pCtx, eType, pIter); + pIter->pConflict = 0; + } rc = sqlite3_reset(p->pSelect); }else if( rc==SQLITE_OK ){ if( p->bDeferConstraints && eType==SQLITE_CHANGESET_CONFLICT ){ @@ -214851,7 +227888,7 @@ static int sessionApplyOneOp( sqlite3_step(p->pDelete); rc = sqlite3_reset(p->pDelete); - if( rc==SQLITE_OK && sqlite3_changes(p->db)==0 ){ + if( rc==SQLITE_OK && sqlite3_changes(p->db)==0 && p->bIgnoreNoop==0 ){ rc = sessionConflictHandler( SQLITE_CHANGESET_DATA, p, pIter, xConflict, pCtx, pbRetry ); @@ -214908,7 +227945,7 @@ static int sessionApplyOneOp( /* Check if there is a conflicting row. For sqlite_stat1, this needs ** to be done using a SELECT, as there is no PRIMARY KEY in the ** database schema to throw an exception if a duplicate is inserted. */ - rc = sessionSeekToRow(p->db, pIter, p->abPK, p->pSelect); + rc = sessionSeekToRow(pIter, p); if( rc==SQLITE_ROW ){ rc = SQLITE_CONSTRAINT; sqlite3_reset(p->pSelect); @@ -215085,6 +228122,7 @@ static int sessionChangesetApply( memset(&sApply, 0, sizeof(sApply)); sApply.bRebase = (ppRebase && pnRebase); sApply.bInvertConstraints = !!(flags & SQLITE_CHANGESETAPPLY_INVERT); + sApply.bIgnoreNoop = !!(flags & SQLITE_CHANGESETAPPLY_IGNORENOOP); sqlite3_mutex_enter(sqlite3_db_mutex(db)); if( (flags & SQLITE_CHANGESETAPPLY_NOSAVEPOINT)==0 ){ rc = sqlite3_exec(db, "SAVEPOINT changeset_apply", 0, 0, 0); @@ -215122,6 +228160,7 @@ static int sessionChangesetApply( sApply.bStat1 = 0; sApply.bDeferConstraints = 1; sApply.bRebaseStarted = 0; + sApply.bRowid = 0; memset(&sApply.constraints, 0, sizeof(SessionBuffer)); /* If an xFilter() callback was specified, invoke it now. If the @@ -215141,8 +228180,8 @@ static int sessionChangesetApply( int i; sqlite3changeset_pk(pIter, &abPK, 0); - rc = sessionTableInfo(0, - db, "main", zNew, &sApply.nCol, &zTab, &sApply.azCol, &sApply.abPK + rc = sessionTableInfo(0, db, "main", zNew, + &sApply.nCol, &zTab, &sApply.azCol, 0, &sApply.abPK, &sApply.bRowid ); if( rc!=SQLITE_OK ) break; for(i=0; i<sApply.nCol; i++){ @@ -215274,11 +228313,24 @@ SQLITE_API int sqlite3changeset_apply_v2( sqlite3_changeset_iter *pIter; /* Iterator to skip through changeset */ int bInv = !!(flags & SQLITE_CHANGESETAPPLY_INVERT); int rc = sessionChangesetStart(&pIter, 0, 0, nChangeset, pChangeset, bInv, 1); + u64 savedFlag = db->flags & SQLITE_FkNoAction; + + if( flags & SQLITE_CHANGESETAPPLY_FKNOACTION ){ + db->flags |= ((u64)SQLITE_FkNoAction); + db->aDb[0].pSchema->schema_cookie -= 32; + } + if( rc==SQLITE_OK ){ rc = sessionChangesetApply( db, pIter, xFilter, xConflict, pCtx, ppRebase, pnRebase, flags ); } + + if( (flags & SQLITE_CHANGESETAPPLY_FKNOACTION) && savedFlag==0 ){ + assert( db->flags & SQLITE_FkNoAction ); + db->flags &= ~((u64)SQLITE_FkNoAction); + db->aDb[0].pSchema->schema_cookie -= 32; + } return rc; } @@ -215366,6 +228418,9 @@ struct sqlite3_changegroup { int rc; /* Error code */ int bPatch; /* True to accumulate patchsets */ SessionTable *pList; /* List of tables in current patch */ + + sqlite3 *db; /* Configured by changegroup_schema() */ + char *zDb; /* Configured by changegroup_schema() */ }; /* @@ -215386,6 +228441,7 @@ static int sessionChangeMerge( ){ SessionChange *pNew = 0; int rc = SQLITE_OK; + assert( aRec!=0 ); if( !pExist ){ pNew = (SessionChange *)sqlite3_malloc64(sizeof(SessionChange) + nRec); @@ -215552,6 +228608,114 @@ static int sessionChangeMerge( } /* +** Check if a changeset entry with nCol columns and the PK array passed +** as the final argument to this function is compatible with SessionTable +** pTab. If so, return 1. Otherwise, if they are incompatible in some way, +** return 0. +*/ +static int sessionChangesetCheckCompat( + SessionTable *pTab, + int nCol, + u8 *abPK +){ + if( pTab->azCol && nCol<pTab->nCol ){ + int ii; + for(ii=0; ii<pTab->nCol; ii++){ + u8 bPK = (ii < nCol) ? abPK[ii] : 0; + if( pTab->abPK[ii]!=bPK ) return 0; + } + return 1; + } + return (pTab->nCol==nCol && 0==memcmp(abPK, pTab->abPK, nCol)); +} + +static int sessionChangesetExtendRecord( + sqlite3_changegroup *pGrp, + SessionTable *pTab, + int nCol, + int op, + const u8 *aRec, + int nRec, + SessionBuffer *pOut +){ + int rc = SQLITE_OK; + int ii = 0; + + assert( pTab->azCol ); + assert( nCol<pTab->nCol ); + + pOut->nBuf = 0; + if( op==SQLITE_INSERT || (op==SQLITE_DELETE && pGrp->bPatch==0) ){ + /* Append the missing default column values to the record. */ + sessionAppendBlob(pOut, aRec, nRec, &rc); + if( rc==SQLITE_OK && pTab->pDfltStmt==0 ){ + rc = sessionPrepareDfltStmt(pGrp->db, pTab, &pTab->pDfltStmt); + } + for(ii=nCol; rc==SQLITE_OK && ii<pTab->nCol; ii++){ + int eType = sqlite3_column_type(pTab->pDfltStmt, ii); + sessionAppendByte(pOut, eType, &rc); + switch( eType ){ + case SQLITE_FLOAT: + case SQLITE_INTEGER: { + i64 iVal; + if( eType==SQLITE_INTEGER ){ + iVal = sqlite3_column_int64(pTab->pDfltStmt, ii); + }else{ + double rVal = sqlite3_column_int64(pTab->pDfltStmt, ii); + memcpy(&iVal, &rVal, sizeof(i64)); + } + if( SQLITE_OK==sessionBufferGrow(pOut, 8, &rc) ){ + sessionPutI64(&pOut->aBuf[pOut->nBuf], iVal); + } + break; + } + + case SQLITE_BLOB: + case SQLITE_TEXT: { + int n = sqlite3_column_bytes(pTab->pDfltStmt, ii); + sessionAppendVarint(pOut, n, &rc); + if( eType==SQLITE_TEXT ){ + const u8 *z = (const u8*)sqlite3_column_text(pTab->pDfltStmt, ii); + sessionAppendBlob(pOut, z, n, &rc); + }else{ + const u8 *z = (const u8*)sqlite3_column_blob(pTab->pDfltStmt, ii); + sessionAppendBlob(pOut, z, n, &rc); + } + break; + } + + default: + assert( eType==SQLITE_NULL ); + break; + } + } + }else if( op==SQLITE_UPDATE ){ + /* Append missing "undefined" entries to the old.* record. And, if this + ** is an UPDATE, to the new.* record as well. */ + int iOff = 0; + if( pGrp->bPatch==0 ){ + for(ii=0; ii<nCol; ii++){ + iOff += sessionSerialLen(&aRec[iOff]); + } + sessionAppendBlob(pOut, aRec, iOff, &rc); + for(ii=0; ii<(pTab->nCol-nCol); ii++){ + sessionAppendByte(pOut, 0x00, &rc); + } + } + + sessionAppendBlob(pOut, &aRec[iOff], nRec-iOff, &rc); + for(ii=0; ii<(pTab->nCol-nCol); ii++){ + sessionAppendByte(pOut, 0x00, &rc); + } + }else{ + assert( op==SQLITE_DELETE && pGrp->bPatch ); + sessionAppendBlob(pOut, aRec, nRec, &rc); + } + + return rc; +} + +/* ** Add all changes in the changeset traversed by the iterator passed as ** the first argument to the changegroup hash tables. */ @@ -215564,6 +228728,7 @@ static int sessionChangesetToHash( int nRec; int rc = SQLITE_OK; SessionTable *pTab = 0; + SessionBuffer rec = {0, 0, 0}; while( SQLITE_ROW==sessionChangesetNext(pIter, &aRec, &nRec, 0) ){ const char *zNew; @@ -215575,6 +228740,9 @@ static int sessionChangesetToHash( SessionChange *pExist = 0; SessionChange **pp; + /* Ensure that only changesets, or only patchsets, but not a mixture + ** of both, are being combined. It is an error to try to combine a + ** changeset and a patchset. */ if( pGrp->pList==0 ){ pGrp->bPatch = pIter->bPatchset; }else if( pIter->bPatchset!=pGrp->bPatch ){ @@ -215607,18 +228775,38 @@ static int sessionChangesetToHash( pTab->zName = (char*)&pTab->abPK[nCol]; memcpy(pTab->zName, zNew, nNew+1); + if( pGrp->db ){ + pTab->nCol = 0; + rc = sessionInitTable(0, pTab, pGrp->db, pGrp->zDb); + if( rc ){ + assert( pTab->azCol==0 ); + sqlite3_free(pTab); + break; + } + } + /* The new object must be linked on to the end of the list, not ** simply added to the start of it. This is to ensure that the ** tables within the output of sqlite3changegroup_output() are in ** the right order. */ for(ppTab=&pGrp->pList; *ppTab; ppTab=&(*ppTab)->pNext); *ppTab = pTab; - }else if( pTab->nCol!=nCol || memcmp(pTab->abPK, abPK, nCol) ){ + } + + if( !sessionChangesetCheckCompat(pTab, nCol, abPK) ){ rc = SQLITE_SCHEMA; break; } } + if( nCol<pTab->nCol ){ + assert( pGrp->db ); + rc = sessionChangesetExtendRecord(pGrp, pTab, nCol, op, aRec, nRec, &rec); + if( rc ) break; + aRec = rec.aBuf; + nRec = rec.nBuf; + } + if( sessionGrowHash(0, pIter->bPatchset, pTab) ){ rc = SQLITE_NOMEM; break; @@ -215656,6 +228844,7 @@ static int sessionChangesetToHash( } } + sqlite3_free(rec.aBuf); if( rc==SQLITE_OK ) rc = pIter->rc; return rc; } @@ -215743,6 +228932,31 @@ SQLITE_API int sqlite3changegroup_new(sqlite3_changegroup **pp){ } /* +** Provide a database schema to the changegroup object. +*/ +SQLITE_API int sqlite3changegroup_schema( + sqlite3_changegroup *pGrp, + sqlite3 *db, + const char *zDb +){ + int rc = SQLITE_OK; + + if( pGrp->pList || pGrp->db ){ + /* Cannot add a schema after one or more calls to sqlite3changegroup_add(), + ** or after sqlite3changegroup_schema() has already been called. */ + rc = SQLITE_MISUSE; + }else{ + pGrp->zDb = sqlite3_mprintf("%s", zDb); + if( pGrp->zDb==0 ){ + rc = SQLITE_NOMEM; + }else{ + pGrp->db = db; + } + } + return rc; +} + +/* ** Add the changeset currently stored in buffer pData, size nData bytes, ** to changeset-group p. */ @@ -215805,6 +229019,7 @@ SQLITE_API int sqlite3changegroup_output_strm( */ SQLITE_API void sqlite3changegroup_delete(sqlite3_changegroup *pGrp){ if( pGrp ){ + sqlite3_free(pGrp->zDb); sessionDeleteTable(0, pGrp->pList); sqlite3_free(pGrp); } @@ -215954,7 +229169,7 @@ static void sessionAppendPartialUpdate( if( !pIter->abPK[i] && a1[0] ) bData = 1; memcpy(pOut, a1, n1); pOut += n1; - }else if( a2[0]!=0xFF ){ + }else if( a2[0]!=0xFF && a1[0] ){ bData = 1; memcpy(pOut, a2, n2); pOut += n2; @@ -216337,8 +229552,11 @@ struct Fts5PhraseIter { ** created with the "columnsize=0" option. ** ** xColumnText: -** This function attempts to retrieve the text of column iCol of the -** current document. If successful, (*pz) is set to point to a buffer +** If parameter iCol is less than zero, or greater than or equal to the +** number of columns in the table, SQLITE_RANGE is returned. +** +** Otherwise, this function attempts to retrieve the text of column iCol of +** the current document. If successful, (*pz) is set to point to a buffer ** containing the text in utf-8 encoding, (*pn) is set to the size in bytes ** (not characters) of the buffer and SQLITE_OK is returned. Otherwise, ** if an error occurs, an SQLite error code is returned and the final values @@ -216348,8 +229566,10 @@ struct Fts5PhraseIter { ** Returns the number of phrases in the current query expression. ** ** xPhraseSize: -** Returns the number of tokens in phrase iPhrase of the query. Phrases -** are numbered starting from zero. +** If parameter iCol is less than zero, or greater than or equal to the +** number of phrases in the current query, as returned by xPhraseCount, +** 0 is returned. Otherwise, this function returns the number of tokens in +** phrase iPhrase of the query. Phrases are numbered starting from zero. ** ** xInstCount: ** Set *pnInst to the total number of occurrences of all phrases within @@ -216365,12 +229585,13 @@ struct Fts5PhraseIter { ** Query for the details of phrase match iIdx within the current row. ** Phrase matches are numbered starting from zero, so the iIdx argument ** should be greater than or equal to zero and smaller than the value -** output by xInstCount(). +** output by xInstCount(). If iIdx is less than zero or greater than +** or equal to the value returned by xInstCount(), SQLITE_RANGE is returned. ** -** Usually, output parameter *piPhrase is set to the phrase number, *piCol +** Otherwise, output parameter *piPhrase is set to the phrase number, *piCol ** to the column in which it occurs and *piOff the token offset of the -** first token of the phrase. Returns SQLITE_OK if successful, or an error -** code (i.e. SQLITE_NOMEM) if an error occurs. +** first token of the phrase. SQLITE_OK is returned if successful, or an +** error code (i.e. SQLITE_NOMEM) if an error occurs. ** ** This API can be quite slow if used with an FTS5 table created with the ** "detail=none" or "detail=column" option. @@ -216396,6 +229617,10 @@ struct Fts5PhraseIter { ** Invoking Api.xUserData() returns a copy of the pointer passed as ** the third argument to pUserData. ** +** If parameter iPhrase is less than zero, or greater than or equal to +** the number of phrases in the query, as returned by xPhraseCount(), +** this function returns SQLITE_RANGE. +** ** If the callback function returns any value other than SQLITE_OK, the ** query is abandoned and the xQueryPhrase function returns immediately. ** If the returned value is SQLITE_DONE, xQueryPhrase returns SQLITE_OK. @@ -216510,6 +229735,39 @@ struct Fts5PhraseIter { ** ** xPhraseNextColumn() ** See xPhraseFirstColumn above. +** +** xQueryToken(pFts5, iPhrase, iToken, ppToken, pnToken) +** This is used to access token iToken of phrase iPhrase of the current +** query. Before returning, output parameter *ppToken is set to point +** to a buffer containing the requested token, and *pnToken to the +** size of this buffer in bytes. +** +** If iPhrase or iToken are less than zero, or if iPhrase is greater than +** or equal to the number of phrases in the query as reported by +** xPhraseCount(), or if iToken is equal to or greater than the number of +** tokens in the phrase, SQLITE_RANGE is returned and *ppToken and *pnToken + are both zeroed. +** +** The output text is not a copy of the query text that specified the +** token. It is the output of the tokenizer module. For tokendata=1 +** tables, this includes any embedded 0x00 and trailing data. +** +** xInstToken(pFts5, iIdx, iToken, ppToken, pnToken) +** This is used to access token iToken of phrase hit iIdx within the +** current row. If iIdx is less than zero or greater than or equal to the +** value returned by xInstCount(), SQLITE_RANGE is returned. Otherwise, +** output variable (*ppToken) is set to point to a buffer containing the +** matching document token, and (*pnToken) to the size of that buffer in +** bytes. This API is not available if the specified token matches a +** prefix query term. In that case both output variables are always set +** to 0. +** +** The output text is not a copy of the document text that was tokenized. +** It is the output of the tokenizer module. For tokendata=1 tables, this +** includes any embedded 0x00 and trailing data. +** +** This API can be quite slow if used with an FTS5 table created with the +** "detail=none" or "detail=column" option. */ struct Fts5ExtensionApi { int iVersion; /* Currently always set to 3 */ @@ -216547,6 +229805,13 @@ struct Fts5ExtensionApi { int (*xPhraseFirstColumn)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*); void (*xPhraseNextColumn)(Fts5Context*, Fts5PhraseIter*, int *piCol); + + /* Below this point are iVersion>=3 only */ + int (*xQueryToken)(Fts5Context*, + int iPhrase, int iToken, + const char **ppToken, int *pnToken + ); + int (*xInstToken)(Fts5Context*, int iIdx, int iToken, const char**, int*); }; /* @@ -216741,8 +230006,8 @@ struct Fts5ExtensionApi { ** as separate queries of the FTS index are required for each synonym. ** ** When using methods (2) or (3), it is important that the tokenizer only -** provide synonyms when tokenizing document text (method (2)) or query -** text (method (3)), not both. Doing so will not cause any errors, but is +** provide synonyms when tokenizing document text (method (3)) or query +** text (method (2)), not both. Doing so will not cause any errors, but is ** inefficient. */ typedef struct Fts5Tokenizer Fts5Tokenizer; @@ -216790,7 +230055,7 @@ struct fts5_api { int (*xCreateTokenizer)( fts5_api *pApi, const char *zName, - void *pContext, + void *pUserData, fts5_tokenizer *pTokenizer, void (*xDestroy)(void*) ); @@ -216799,7 +230064,7 @@ struct fts5_api { int (*xFindTokenizer)( fts5_api *pApi, const char *zName, - void **ppContext, + void **ppUserData, fts5_tokenizer *pTokenizer ); @@ -216807,7 +230072,7 @@ struct fts5_api { int (*xCreateFunction)( fts5_api *pApi, const char *zName, - void *pContext, + void *pUserData, fts5_extension_function xFunction, void (*xDestroy)(void*) ); @@ -216979,6 +230244,10 @@ typedef struct Fts5Config Fts5Config; ** attempt to merge together. A value of 1 sets the object to use the ** compile time default. Zero disables auto-merge altogether. ** +** bContentlessDelete: +** True if the contentless_delete option was present in the CREATE +** VIRTUAL TABLE statement. +** ** zContent: ** ** zContentRowid: @@ -217013,9 +230282,11 @@ struct Fts5Config { int nPrefix; /* Number of prefix indexes */ int *aPrefix; /* Sizes in bytes of nPrefix prefix indexes */ int eContent; /* An FTS5_CONTENT value */ + int bContentlessDelete; /* "contentless_delete=" option (dflt==0) */ char *zContent; /* content table */ char *zContentRowid; /* "content_rowid=" option value */ int bColumnsize; /* "columnsize=" option value (dflt==1) */ + int bTokendata; /* "tokendata=" option value (dflt==0) */ int eDetail; /* FTS5_DETAIL_XXX value */ char *zContentExprlist; Fts5Tokenizer *pTok; @@ -217024,6 +230295,7 @@ struct Fts5Config { int ePattern; /* FTS_PATTERN_XXX constant */ /* Values loaded from the %_config table */ + int iVersion; /* fts5 file format 'version' */ int iCookie; /* Incremented when %_config is modified */ int pgsz; /* Approximate page size used in %_data */ int nAutomerge; /* 'automerge' setting */ @@ -217032,6 +230304,8 @@ struct Fts5Config { int nHashSize; /* Bytes of memory for in-memory hash */ char *zRank; /* Name of rank function */ char *zRankArgs; /* Arguments to rank function */ + int bSecureDelete; /* 'secure-delete' */ + int nDeleteMerge; /* 'deletemerge' */ /* If non-NULL, points to sqlite3_vtab.base.zErrmsg. Often NULL. */ char **pzErrmsg; @@ -217041,8 +230315,11 @@ struct Fts5Config { #endif }; -/* Current expected value of %_config table 'version' field */ -#define FTS5_CURRENT_VERSION 4 +/* Current expected value of %_config table 'version' field. And +** the expected version if the 'secure-delete' option has ever been +** set on the table. */ +#define FTS5_CURRENT_VERSION 4 +#define FTS5_CURRENT_VERSION_SECUREDELETE 5 #define FTS5_CONTENT_NORMAL 0 #define FTS5_CONTENT_NONE 1 @@ -217111,7 +230388,7 @@ static void sqlite3Fts5BufferAppendPrintf(int *, Fts5Buffer*, char *zFmt, ...); static char *sqlite3Fts5Mprintf(int *pRc, const char *zFmt, ...); #define fts5BufferZero(x) sqlite3Fts5BufferZero(x) -#define fts5BufferAppendVarint(a,b,c) sqlite3Fts5BufferAppendVarint(a,b,c) +#define fts5BufferAppendVarint(a,b,c) sqlite3Fts5BufferAppendVarint(a,b,(i64)c) #define fts5BufferFree(a) sqlite3Fts5BufferFree(a) #define fts5BufferAppendBlob(a,b,c,d) sqlite3Fts5BufferAppendBlob(a,b,c,d) #define fts5BufferSet(a,b,c,d) sqlite3Fts5BufferSet(a,b,c,d) @@ -217198,16 +230475,19 @@ struct Fts5IndexIter { /* ** Values used as part of the flags argument passed to IndexQuery(). */ -#define FTS5INDEX_QUERY_PREFIX 0x0001 /* Prefix query */ -#define FTS5INDEX_QUERY_DESC 0x0002 /* Docs in descending rowid order */ -#define FTS5INDEX_QUERY_TEST_NOIDX 0x0004 /* Do not use prefix index */ -#define FTS5INDEX_QUERY_SCAN 0x0008 /* Scan query (fts5vocab) */ +#define FTS5INDEX_QUERY_PREFIX 0x0001 /* Prefix query */ +#define FTS5INDEX_QUERY_DESC 0x0002 /* Docs in descending rowid order */ +#define FTS5INDEX_QUERY_TEST_NOIDX 0x0004 /* Do not use prefix index */ +#define FTS5INDEX_QUERY_SCAN 0x0008 /* Scan query (fts5vocab) */ /* The following are used internally by the fts5_index.c module. They are ** defined here only to make it easier to avoid clashes with the flags ** above. */ -#define FTS5INDEX_QUERY_SKIPEMPTY 0x0010 -#define FTS5INDEX_QUERY_NOOUTPUT 0x0020 +#define FTS5INDEX_QUERY_SKIPEMPTY 0x0010 +#define FTS5INDEX_QUERY_NOOUTPUT 0x0020 +#define FTS5INDEX_QUERY_SKIPHASH 0x0040 +#define FTS5INDEX_QUERY_NOTOKENDATA 0x0080 +#define FTS5INDEX_QUERY_SCANONETERM 0x0100 /* ** Create/destroy an Fts5Index object. @@ -217276,6 +230556,10 @@ static void *sqlite3Fts5StructureRef(Fts5Index*); static void sqlite3Fts5StructureRelease(void*); static int sqlite3Fts5StructureTest(Fts5Index*, void*); +/* +** Used by xInstToken(): +*/ +static int sqlite3Fts5IterToken(Fts5IndexIter*, i64, int, int, const char**, int*); /* ** Insert or remove data to or from the index. Each time a document is @@ -217350,6 +230634,16 @@ static int sqlite3Fts5IndexReset(Fts5Index *p); static int sqlite3Fts5IndexLoadConfig(Fts5Index *p); +static int sqlite3Fts5IndexGetOrigin(Fts5Index *p, i64 *piOrigin); +static int sqlite3Fts5IndexContentlessDelete(Fts5Index *p, i64 iOrigin, i64 iRowid); + +static void sqlite3Fts5IndexIterClearTokendata(Fts5IndexIter*); + +/* Used to populate hash tables for xInstToken in detail=none/column mode. */ +static int sqlite3Fts5IndexIterWriteTokendata( + Fts5IndexIter*, const char*, int, i64 iRowid, int iCol, int iOff +); + /* ** End of interface to code in fts5_index.c. **************************************************************************/ @@ -217362,7 +230656,7 @@ static int sqlite3Fts5GetVarintLen(u32 iVal); static u8 sqlite3Fts5GetVarint(const unsigned char*, u64*); static int sqlite3Fts5PutVarint(unsigned char *p, u64 v); -#define fts5GetVarint32(a,b) sqlite3Fts5GetVarint32(a,(u32*)&b) +#define fts5GetVarint32(a,b) sqlite3Fts5GetVarint32(a,(u32*)&(b)) #define fts5GetVarint sqlite3Fts5GetVarint #define fts5FastGetVarint32(a, iOff, nVal) { \ @@ -217434,6 +230728,11 @@ static int sqlite3Fts5HashWrite( */ static void sqlite3Fts5HashClear(Fts5Hash*); +/* +** Return true if the hash is empty, false otherwise. +*/ +static int sqlite3Fts5HashIsEmpty(Fts5Hash*); + static int sqlite3Fts5HashQuery( Fts5Hash*, /* Hash table to query */ int nPre, @@ -217450,11 +230749,13 @@ static void sqlite3Fts5HashScanNext(Fts5Hash*); static int sqlite3Fts5HashScanEof(Fts5Hash*); static void sqlite3Fts5HashScanEntry(Fts5Hash *, const char **pzTerm, /* OUT: term (nul-terminated) */ + int *pnTerm, /* OUT: Size of term in bytes */ const u8 **ppDoclist, /* OUT: pointer to doclist */ int *pnDoclist /* OUT: size of doclist in bytes */ ); + /* ** End of interface to code in fts5_hash.c. **************************************************************************/ @@ -217575,6 +230876,10 @@ static int sqlite3Fts5ExprClonePhrase(Fts5Expr*, int, Fts5Expr**); static int sqlite3Fts5ExprPhraseCollist(Fts5Expr *, int, const u8 **, int *); +static int sqlite3Fts5ExprQueryToken(Fts5Expr*, int, int, const char**, int*); +static int sqlite3Fts5ExprInstToken(Fts5Expr*, i64, int, int, int, int, const char**, int*); +static void sqlite3Fts5ExprClearTokens(Fts5Expr*); + /******************************************* ** The fts5_expr.c API above this point is used by the other hand-written ** C code in this module. The interfaces below this point are called by @@ -217698,7 +231003,8 @@ static void sqlite3Fts5UnicodeAscii(u8*, u8*); #define FTS5_STAR 15 /* This file is automatically generated by Lemon from input grammar -** source file "fts5parse.y". */ +** source file "fts5parse.y". +*/ /* ** 2000-05-29 ** @@ -219288,15 +232594,19 @@ static int fts5CInstIterInit( */ typedef struct HighlightContext HighlightContext; struct HighlightContext { - CInstIter iter; /* Coalesced Instance Iterator */ - int iPos; /* Current token offset in zIn[] */ + /* Constant parameters to fts5HighlightCb() */ int iRangeStart; /* First token to include */ int iRangeEnd; /* If non-zero, last token to include */ const char *zOpen; /* Opening highlight */ const char *zClose; /* Closing highlight */ const char *zIn; /* Input text */ int nIn; /* Size of input text in bytes */ - int iOff; /* Current offset within zIn[] */ + + /* Variables modified by fts5HighlightCb() */ + CInstIter iter; /* Coalesced Instance Iterator */ + int iPos; /* Current token offset in zIn[] */ + int iOff; /* Have copied up to this offset in zIn[] */ + int bOpen; /* True if highlight is open */ char *zOut; /* Output value */ }; @@ -219329,8 +232639,8 @@ static int fts5HighlightCb( int tflags, /* Mask of FTS5_TOKEN_* flags */ const char *pToken, /* Buffer containing token */ int nToken, /* Size of token in bytes */ - int iStartOff, /* Start offset of token */ - int iEndOff /* End offset of token */ + int iStartOff, /* Start byte offset of token */ + int iEndOff /* End byte offset of token */ ){ HighlightContext *p = (HighlightContext*)pContext; int rc = SQLITE_OK; @@ -219341,35 +232651,60 @@ static int fts5HighlightCb( if( tflags & FTS5_TOKEN_COLOCATED ) return SQLITE_OK; iPos = p->iPos++; - if( p->iRangeEnd>0 ){ + if( p->iRangeEnd>=0 ){ if( iPos<p->iRangeStart || iPos>p->iRangeEnd ) return SQLITE_OK; if( p->iRangeStart && iPos==p->iRangeStart ) p->iOff = iStartOff; } - if( iPos==p->iter.iStart ){ + /* If the parenthesis is open, and this token is not part of the current + ** phrase, and the starting byte offset of this token is past the point + ** that has currently been copied into the output buffer, close the + ** parenthesis. */ + if( p->bOpen + && (iPos<=p->iter.iStart || p->iter.iStart<0) + && iStartOff>p->iOff + ){ + fts5HighlightAppend(&rc, p, p->zClose, -1); + p->bOpen = 0; + } + + /* If this is the start of a new phrase, and the highlight is not open: + ** + ** * copy text from the input up to the start of the phrase, and + ** * open the highlight. + */ + if( iPos==p->iter.iStart && p->bOpen==0 ){ fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iStartOff - p->iOff); fts5HighlightAppend(&rc, p, p->zOpen, -1); p->iOff = iStartOff; + p->bOpen = 1; } if( iPos==p->iter.iEnd ){ - if( p->iRangeEnd && p->iter.iStart<p->iRangeStart ){ + if( p->bOpen==0 ){ + assert( p->iRangeEnd>=0 ); fts5HighlightAppend(&rc, p, p->zOpen, -1); + p->bOpen = 1; } fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iEndOff - p->iOff); - fts5HighlightAppend(&rc, p, p->zClose, -1); p->iOff = iEndOff; + if( rc==SQLITE_OK ){ rc = fts5CInstIterNext(&p->iter); } } - if( p->iRangeEnd>0 && iPos==p->iRangeEnd ){ - fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iEndOff - p->iOff); - p->iOff = iEndOff; - if( iPos>=p->iter.iStart && iPos<p->iter.iEnd ){ + if( iPos==p->iRangeEnd ){ + if( p->bOpen ){ + if( p->iter.iStart>=0 && iPos>=p->iter.iStart ){ + fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iEndOff - p->iOff); + p->iOff = iEndOff; + } fts5HighlightAppend(&rc, p, p->zClose, -1); + p->bOpen = 0; } + fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iEndOff - p->iOff); + p->iOff = iEndOff; } return rc; @@ -219399,9 +232734,12 @@ static void fts5HighlightFunction( memset(&ctx, 0, sizeof(HighlightContext)); ctx.zOpen = (const char*)sqlite3_value_text(apVal[1]); ctx.zClose = (const char*)sqlite3_value_text(apVal[2]); + ctx.iRangeEnd = -1; rc = pApi->xColumnText(pFts, iCol, &ctx.zIn, &ctx.nIn); - - if( ctx.zIn ){ + if( rc==SQLITE_RANGE ){ + sqlite3_result_text(pCtx, "", -1, SQLITE_STATIC); + rc = SQLITE_OK; + }else if( ctx.zIn ){ if( rc==SQLITE_OK ){ rc = fts5CInstIterInit(pApi, pFts, iCol, &ctx.iter); } @@ -219409,6 +232747,9 @@ static void fts5HighlightFunction( if( rc==SQLITE_OK ){ rc = pApi->xTokenize(pFts, ctx.zIn, ctx.nIn, (void*)&ctx,fts5HighlightCb); } + if( ctx.bOpen ){ + fts5HighlightAppend(&rc, &ctx, ctx.zClose, -1); + } fts5HighlightAppend(&rc, &ctx, &ctx.zIn[ctx.iOff], ctx.nIn - ctx.iOff); if( rc==SQLITE_OK ){ @@ -219584,6 +232925,7 @@ static void fts5SnippetFunction( iCol = sqlite3_value_int(apVal[0]); ctx.zOpen = fts5ValueToText(apVal[1]); ctx.zClose = fts5ValueToText(apVal[2]); + ctx.iRangeEnd = -1; zEllips = fts5ValueToText(apVal[3]); nToken = sqlite3_value_int(apVal[4]); @@ -219686,6 +233028,9 @@ static void fts5SnippetFunction( if( rc==SQLITE_OK ){ rc = pApi->xTokenize(pFts, ctx.zIn, ctx.nIn, (void*)&ctx,fts5HighlightCb); } + if( ctx.bOpen ){ + fts5HighlightAppend(&rc, &ctx, ctx.zClose, -1); + } if( ctx.iRangeEnd>=(nColSize-1) ){ fts5HighlightAppend(&rc, &ctx, &ctx.zIn[ctx.iOff], ctx.nIn - ctx.iOff); }else{ @@ -219961,6 +233306,7 @@ static void sqlite3Fts5BufferAppendBlob( ){ if( nData ){ if( fts5BufferGrow(pRc, pBuf, nData) ) return; + assert( pBuf->p!=0 ); memcpy(&pBuf->p[pBuf->n], pData, nData); pBuf->n += nData; } @@ -220062,6 +233408,7 @@ static int sqlite3Fts5PoslistNext64( i64 *piOff /* IN/OUT: Current offset */ ){ int i = *pi; + assert( a!=0 || i==0 ); if( i>=n ){ /* EOF */ *piOff = -1; @@ -220069,6 +233416,7 @@ static int sqlite3Fts5PoslistNext64( }else{ i64 iOff = *piOff; u32 iVal; + assert( a!=0 ); fts5FastGetVarint32(a, i, iVal); if( iVal<=1 ){ if( iVal==0 ){ @@ -220324,6 +233672,8 @@ static void sqlite3Fts5TermsetFree(Fts5Termset *p){ #define FTS5_DEFAULT_CRISISMERGE 16 #define FTS5_DEFAULT_HASHSIZE (1024*1024) +#define FTS5_DEFAULT_DELETE_AUTOMERGE 10 /* default 10% */ + /* Maximum allowed page size */ #define FTS5_MAX_PAGE_SIZE (64*1024) @@ -220654,6 +234004,16 @@ static int fts5ConfigParseSpecial( return rc; } + if( sqlite3_strnicmp("contentless_delete", zCmd, nCmd)==0 ){ + if( (zArg[0]!='0' && zArg[0]!='1') || zArg[1]!='\0' ){ + *pzErr = sqlite3_mprintf("malformed contentless_delete=... directive"); + rc = SQLITE_ERROR; + }else{ + pConfig->bContentlessDelete = (zArg[0]=='1'); + } + return rc; + } + if( sqlite3_strnicmp("content_rowid", zCmd, nCmd)==0 ){ if( pConfig->zContentRowid ){ *pzErr = sqlite3_mprintf("multiple content_rowid=... directives"); @@ -220688,6 +234048,16 @@ static int fts5ConfigParseSpecial( return rc; } + if( sqlite3_strnicmp("tokendata", zCmd, nCmd)==0 ){ + if( (zArg[0]!='0' && zArg[0]!='1') || zArg[1]!='\0' ){ + *pzErr = sqlite3_mprintf("malformed tokendata=... directive"); + rc = SQLITE_ERROR; + }else{ + pConfig->bTokendata = (zArg[0]=='1'); + } + return rc; + } + *pzErr = sqlite3_mprintf("unrecognized option: \"%.*s\"", nCmd, zCmd); return SQLITE_ERROR; } @@ -220852,6 +234222,7 @@ static int sqlite3Fts5ConfigParse( rc = SQLITE_ERROR; } + assert( (pRet->abUnindexed && pRet->azCol) || rc!=SQLITE_OK ); for(i=3; rc==SQLITE_OK && i<nArg; i++){ const char *zOrig = azArg[i]; const char *z; @@ -220897,6 +234268,28 @@ static int sqlite3Fts5ConfigParse( sqlite3_free(zTwo); } + /* We only allow contentless_delete=1 if the table is indeed contentless. */ + if( rc==SQLITE_OK + && pRet->bContentlessDelete + && pRet->eContent!=FTS5_CONTENT_NONE + ){ + *pzErr = sqlite3_mprintf( + "contentless_delete=1 requires a contentless table" + ); + rc = SQLITE_ERROR; + } + + /* We only allow contentless_delete=1 if columnsize=0 is not present. + ** + ** This restriction may be removed at some point. + */ + if( rc==SQLITE_OK && pRet->bContentlessDelete && pRet->bColumnsize==0 ){ + *pzErr = sqlite3_mprintf( + "contentless_delete=1 is incompatible with columnsize=0" + ); + rc = SQLITE_ERROR; + } + /* If a tokenizer= option was successfully parsed, the tokenizer has ** already been allocated. Otherwise, allocate an instance of the default ** tokenizer (unicode61) now. */ @@ -221191,6 +234584,18 @@ static int sqlite3Fts5ConfigSetValue( } } + else if( 0==sqlite3_stricmp(zKey, "deletemerge") ){ + int nVal = -1; + if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){ + nVal = sqlite3_value_int(pVal); + }else{ + *pbBadkey = 1; + } + if( nVal<0 ) nVal = FTS5_DEFAULT_DELETE_AUTOMERGE; + if( nVal>100 ) nVal = 0; + pConfig->nDeleteMerge = nVal; + } + else if( 0==sqlite3_stricmp(zKey, "rank") ){ const char *zIn = (const char*)sqlite3_value_text(pVal); char *zRank; @@ -221205,6 +234610,18 @@ static int sqlite3Fts5ConfigSetValue( rc = SQLITE_OK; *pbBadkey = 1; } + } + + else if( 0==sqlite3_stricmp(zKey, "secure-delete") ){ + int bVal = -1; + if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){ + bVal = sqlite3_value_int(pVal); + } + if( bVal<0 ){ + *pbBadkey = 1; + }else{ + pConfig->bSecureDelete = (bVal ? 1 : 0); + } }else{ *pbBadkey = 1; } @@ -221227,6 +234644,7 @@ static int sqlite3Fts5ConfigLoad(Fts5Config *pConfig, int iCookie){ pConfig->nUsermerge = FTS5_DEFAULT_USERMERGE; pConfig->nCrisisMerge = FTS5_DEFAULT_CRISISMERGE; pConfig->nHashSize = FTS5_DEFAULT_HASHSIZE; + pConfig->nDeleteMerge = FTS5_DEFAULT_DELETE_AUTOMERGE; zSql = sqlite3Fts5Mprintf(&rc, zSelect, pConfig->zDb, pConfig->zName); if( zSql ){ @@ -221249,15 +234667,20 @@ static int sqlite3Fts5ConfigLoad(Fts5Config *pConfig, int iCookie){ rc = sqlite3_finalize(p); } - if( rc==SQLITE_OK && iVersion!=FTS5_CURRENT_VERSION ){ + if( rc==SQLITE_OK + && iVersion!=FTS5_CURRENT_VERSION + && iVersion!=FTS5_CURRENT_VERSION_SECUREDELETE + ){ rc = SQLITE_ERROR; if( pConfig->pzErrmsg ){ assert( 0==*pConfig->pzErrmsg ); - *pConfig->pzErrmsg = sqlite3_mprintf( - "invalid fts5 file format (found %d, expected %d) - run 'rebuild'", - iVersion, FTS5_CURRENT_VERSION + *pConfig->pzErrmsg = sqlite3_mprintf("invalid fts5 file format " + "(found %d, expected %d or %d) - run 'rebuild'", + iVersion, FTS5_CURRENT_VERSION, FTS5_CURRENT_VERSION_SECUREDELETE ); } + }else{ + pConfig->iVersion = iVersion; } if( rc==SQLITE_OK ){ @@ -221285,6 +234708,10 @@ static int sqlite3Fts5ConfigLoad(Fts5Config *pConfig, int iCookie){ /* #include "fts5Int.h" */ /* #include "fts5parse.h" */ +#ifndef SQLITE_FTS5_MAX_EXPR_DEPTH +# define SQLITE_FTS5_MAX_EXPR_DEPTH 256 +#endif + /* ** All token types in the generated fts5parse.h file are greater than 0. */ @@ -221325,11 +234752,17 @@ struct Fts5Expr { ** FTS5_NOT (nChild, apChild valid) ** FTS5_STRING (pNear valid) ** FTS5_TERM (pNear valid) +** +** iHeight: +** Distance from this node to furthest leaf. This is always 0 for nodes +** of type FTS5_STRING and FTS5_TERM. For all other nodes it is one +** greater than the largest child value. */ struct Fts5ExprNode { int eType; /* Node type */ int bEof; /* True at EOF */ int bNomatch; /* True if entry is not a match */ + int iHeight; /* Distance to tree leaf nodes */ /* Next method for this node. */ int (*xNext)(Fts5Expr*, Fts5ExprNode*, int, i64); @@ -221358,7 +234791,9 @@ struct Fts5ExprNode { struct Fts5ExprTerm { u8 bPrefix; /* True for a prefix term */ u8 bFirst; /* True if token must be first in column */ - char *zTerm; /* nul-terminated term */ + char *pTerm; /* Term data */ + int nQueryTerm; /* Effective size of term in bytes */ + int nFullTerm; /* Size of term in bytes incl. tokendata */ Fts5IndexIter *pIter; /* Iterator for this term */ Fts5ExprTerm *pSynonym; /* Pointer to first in list of synonyms */ }; @@ -221399,6 +234834,31 @@ struct Fts5Parse { int bPhraseToAnd; /* Convert "a+b" to "a AND b" */ }; +/* +** Check that the Fts5ExprNode.iHeight variables are set correctly in +** the expression tree passed as the only argument. +*/ +#ifndef NDEBUG +static void assert_expr_depth_ok(int rc, Fts5ExprNode *p){ + if( rc==SQLITE_OK ){ + if( p->eType==FTS5_TERM || p->eType==FTS5_STRING || p->eType==0 ){ + assert( p->iHeight==0 ); + }else{ + int ii; + int iMaxChild = 0; + for(ii=0; ii<p->nChild; ii++){ + Fts5ExprNode *pChild = p->apChild[ii]; + iMaxChild = MAX(iMaxChild, pChild->iHeight); + assert_expr_depth_ok(SQLITE_OK, pChild); + } + assert( p->iHeight==iMaxChild+1 ); + } + } +} +#else +# define assert_expr_depth_ok(rc, p) +#endif + static void sqlite3Fts5ParseError(Fts5Parse *pParse, const char *zFmt, ...){ va_list ap; va_start(ap, zFmt); @@ -221513,6 +234973,8 @@ static int sqlite3Fts5ExprNew( }while( sParse.rc==SQLITE_OK && t!=FTS5_EOF ); sqlite3Fts5ParserFree(pEngine, fts5ParseFree); + assert_expr_depth_ok(sParse.rc, sParse.pExpr); + /* If the LHS of the MATCH expression was a user column, apply the ** implicit column-filter. */ if( iCol<pConfig->nCol && sParse.pExpr && sParse.rc==SQLITE_OK ){ @@ -221558,6 +235020,19 @@ static int sqlite3Fts5ExprNew( } /* +** Assuming that buffer z is at least nByte bytes in size and contains a +** valid utf-8 string, return the number of characters in the string. +*/ +static int fts5ExprCountChar(const char *z, int nByte){ + int nRet = 0; + int ii; + for(ii=0; ii<nByte; ii++){ + if( (z[ii] & 0xC0)!=0x80 ) nRet++; + } + return nRet; +} + +/* ** This function is only called when using the special 'trigram' tokenizer. ** Argument zText contains the text of a LIKE or GLOB pattern matched ** against column iCol. This function creates and compiles an FTS5 MATCH @@ -221594,7 +235069,8 @@ static int sqlite3Fts5ExprPattern( if( i==nText || zText[i]==aSpec[0] || zText[i]==aSpec[1] || zText[i]==aSpec[2] ){ - if( i-iFirst>=3 ){ + + if( fts5ExprCountChar(&zText[iFirst], i-iFirst)>=3 ){ int jj; zExpr[iOut++] = '"'; for(jj=iFirst; jj<i; jj++){ @@ -221661,7 +235137,7 @@ static int sqlite3Fts5ExprAnd(Fts5Expr **pp1, Fts5Expr *p2){ Fts5Parse sParse; memset(&sParse, 0, sizeof(sParse)); - if( *pp1 ){ + if( *pp1 && p2 ){ Fts5Expr *p1 = *pp1; int nPhrase = p1->nPhrase + p2->nPhrase; @@ -221686,7 +235162,7 @@ static int sqlite3Fts5ExprAnd(Fts5Expr **pp1, Fts5Expr *p2){ } sqlite3_free(p2->apExprPhrase); sqlite3_free(p2); - }else{ + }else if( p2 ){ *pp1 = p2; } @@ -222184,7 +235660,7 @@ static int fts5ExprNearInitAll( p->pIter = 0; } rc = sqlite3Fts5IndexQuery( - pExpr->pIndex, p->zTerm, (int)strlen(p->zTerm), + pExpr->pIndex, p->pTerm, p->nQueryTerm, (pTerm->bPrefix ? FTS5INDEX_QUERY_PREFIX : 0) | (pExpr->bDesc ? FTS5INDEX_QUERY_DESC : 0), pNear->pColset, @@ -222821,7 +236297,7 @@ static void fts5ExprPhraseFree(Fts5ExprPhrase *pPhrase){ Fts5ExprTerm *pSyn; Fts5ExprTerm *pNext; Fts5ExprTerm *pTerm = &pPhrase->aTerm[i]; - sqlite3_free(pTerm->zTerm); + sqlite3_free(pTerm->pTerm); sqlite3Fts5IterClose(pTerm->pIter); for(pSyn=pTerm->pSynonym; pSyn; pSyn=pNext){ pNext = pSyn->pSynonym; @@ -222895,6 +236371,9 @@ static Fts5ExprNearset *sqlite3Fts5ParseNearset( }else{ if( pRet->nPhrase>0 ){ Fts5ExprPhrase *pLast = pRet->apPhrase[pRet->nPhrase-1]; + assert( pParse!=0 ); + assert( pParse->apPhrase!=0 ); + assert( pParse->nPhrase>=2 ); assert( pLast==pParse->apPhrase[pParse->nPhrase-2] ); if( pPhrase->nTerm==0 ){ fts5ExprPhraseFree(pPhrase); @@ -222916,6 +236395,7 @@ static Fts5ExprNearset *sqlite3Fts5ParseNearset( typedef struct TokenCtx TokenCtx; struct TokenCtx { Fts5ExprPhrase *pPhrase; + Fts5Config *pConfig; int rc; }; @@ -222949,8 +236429,12 @@ static int fts5ParseTokenize( rc = SQLITE_NOMEM; }else{ memset(pSyn, 0, (size_t)nByte); - pSyn->zTerm = ((char*)pSyn) + sizeof(Fts5ExprTerm) + sizeof(Fts5Buffer); - memcpy(pSyn->zTerm, pToken, nToken); + pSyn->pTerm = ((char*)pSyn) + sizeof(Fts5ExprTerm) + sizeof(Fts5Buffer); + pSyn->nFullTerm = pSyn->nQueryTerm = nToken; + if( pCtx->pConfig->bTokendata ){ + pSyn->nQueryTerm = (int)strlen(pSyn->pTerm); + } + memcpy(pSyn->pTerm, pToken, nToken); pSyn->pSynonym = pPhrase->aTerm[pPhrase->nTerm-1].pSynonym; pPhrase->aTerm[pPhrase->nTerm-1].pSynonym = pSyn; } @@ -222975,7 +236459,11 @@ static int fts5ParseTokenize( if( rc==SQLITE_OK ){ pTerm = &pPhrase->aTerm[pPhrase->nTerm++]; memset(pTerm, 0, sizeof(Fts5ExprTerm)); - pTerm->zTerm = sqlite3Fts5Strndup(&rc, pToken, nToken); + pTerm->pTerm = sqlite3Fts5Strndup(&rc, pToken, nToken); + pTerm->nFullTerm = pTerm->nQueryTerm = nToken; + if( pCtx->pConfig->bTokendata && rc==SQLITE_OK ){ + pTerm->nQueryTerm = (int)strlen(pTerm->pTerm); + } } } @@ -223042,6 +236530,7 @@ static Fts5ExprPhrase *sqlite3Fts5ParseTerm( memset(&sCtx, 0, sizeof(TokenCtx)); sCtx.pPhrase = pAppend; + sCtx.pConfig = pConfig; rc = fts5ParseStringFromToken(pToken, &z); if( rc==SQLITE_OK ){ @@ -223089,12 +236578,15 @@ static int sqlite3Fts5ExprClonePhrase( Fts5Expr **ppNew ){ int rc = SQLITE_OK; /* Return code */ - Fts5ExprPhrase *pOrig; /* The phrase extracted from pExpr */ + Fts5ExprPhrase *pOrig = 0; /* The phrase extracted from pExpr */ Fts5Expr *pNew = 0; /* Expression to return via *ppNew */ - TokenCtx sCtx = {0,0}; /* Context object for fts5ParseTokenize */ - - pOrig = pExpr->apExprPhrase[iPhrase]; - pNew = (Fts5Expr*)sqlite3Fts5MallocZero(&rc, sizeof(Fts5Expr)); + TokenCtx sCtx = {0,0,0}; /* Context object for fts5ParseTokenize */ + if( iPhrase<0 || iPhrase>=pExpr->nPhrase ){ + rc = SQLITE_RANGE; + }else{ + pOrig = pExpr->apExprPhrase[iPhrase]; + pNew = (Fts5Expr*)sqlite3Fts5MallocZero(&rc, sizeof(Fts5Expr)); + } if( rc==SQLITE_OK ){ pNew->apExprPhrase = (Fts5ExprPhrase**)sqlite3Fts5MallocZero(&rc, sizeof(Fts5ExprPhrase*)); @@ -223107,7 +236599,7 @@ static int sqlite3Fts5ExprClonePhrase( pNew->pRoot->pNear = (Fts5ExprNearset*)sqlite3Fts5MallocZero(&rc, sizeof(Fts5ExprNearset) + sizeof(Fts5ExprPhrase*)); } - if( rc==SQLITE_OK ){ + if( rc==SQLITE_OK && ALWAYS(pOrig!=0) ){ Fts5Colset *pColsetOrig = pOrig->pNode->pNear->pColset; if( pColsetOrig ){ sqlite3_int64 nByte; @@ -223121,26 +236613,27 @@ static int sqlite3Fts5ExprClonePhrase( } } - if( pOrig->nTerm ){ - int i; /* Used to iterate through phrase terms */ - for(i=0; rc==SQLITE_OK && i<pOrig->nTerm; i++){ - int tflags = 0; - Fts5ExprTerm *p; - for(p=&pOrig->aTerm[i]; p && rc==SQLITE_OK; p=p->pSynonym){ - const char *zTerm = p->zTerm; - rc = fts5ParseTokenize((void*)&sCtx, tflags, zTerm, (int)strlen(zTerm), - 0, 0); - tflags = FTS5_TOKEN_COLOCATED; - } - if( rc==SQLITE_OK ){ - sCtx.pPhrase->aTerm[i].bPrefix = pOrig->aTerm[i].bPrefix; - sCtx.pPhrase->aTerm[i].bFirst = pOrig->aTerm[i].bFirst; + if( rc==SQLITE_OK ){ + if( pOrig->nTerm ){ + int i; /* Used to iterate through phrase terms */ + sCtx.pConfig = pExpr->pConfig; + for(i=0; rc==SQLITE_OK && i<pOrig->nTerm; i++){ + int tflags = 0; + Fts5ExprTerm *p; + for(p=&pOrig->aTerm[i]; p && rc==SQLITE_OK; p=p->pSynonym){ + rc = fts5ParseTokenize((void*)&sCtx,tflags,p->pTerm,p->nFullTerm,0,0); + tflags = FTS5_TOKEN_COLOCATED; + } + if( rc==SQLITE_OK ){ + sCtx.pPhrase->aTerm[i].bPrefix = pOrig->aTerm[i].bPrefix; + sCtx.pPhrase->aTerm[i].bFirst = pOrig->aTerm[i].bFirst; + } } + }else{ + /* This happens when parsing a token or quoted phrase that contains + ** no token characters at all. (e.g ... MATCH '""'). */ + sCtx.pPhrase = sqlite3Fts5MallocZero(&rc, sizeof(Fts5ExprPhrase)); } - }else{ - /* This happens when parsing a token or quoted phrase that contains - ** no token characters at all. (e.g ... MATCH '""'). */ - sCtx.pPhrase = sqlite3Fts5MallocZero(&rc, sizeof(Fts5ExprPhrase)); } if( rc==SQLITE_OK && ALWAYS(sCtx.pPhrase) ){ @@ -223457,6 +236950,7 @@ static void fts5ExprAssignXNext(Fts5ExprNode *pNode){ } static void fts5ExprAddChildren(Fts5ExprNode *p, Fts5ExprNode *pSub){ + int ii = p->nChild; if( p->eType!=FTS5_NOT && pSub->eType==p->eType ){ int nByte = sizeof(Fts5ExprNode*) * pSub->nChild; memcpy(&p->apChild[p->nChild], pSub->apChild, nByte); @@ -223465,6 +236959,9 @@ static void fts5ExprAddChildren(Fts5ExprNode *p, Fts5ExprNode *pSub){ }else{ p->apChild[p->nChild++] = pSub; } + for( ; ii<p->nChild; ii++){ + p->iHeight = MAX(p->iHeight, p->apChild[ii]->iHeight + 1); + } } /* @@ -223495,6 +236992,7 @@ static Fts5ExprNode *fts5ParsePhraseToAnd( if( pRet ){ pRet->eType = FTS5_AND; pRet->nChild = nTerm; + pRet->iHeight = 1; fts5ExprAssignXNext(pRet); pParse->nPhrase--; for(ii=0; ii<nTerm; ii++){ @@ -223505,11 +237003,13 @@ static Fts5ExprNode *fts5ParsePhraseToAnd( if( parseGrowPhraseArray(pParse) ){ fts5ExprPhraseFree(pPhrase); }else{ + Fts5ExprTerm *p = &pNear->apPhrase[0]->aTerm[ii]; + Fts5ExprTerm *pTo = &pPhrase->aTerm[0]; pParse->apPhrase[pParse->nPhrase++] = pPhrase; pPhrase->nTerm = 1; - pPhrase->aTerm[0].zTerm = sqlite3Fts5Strndup( - &pParse->rc, pNear->apPhrase[0]->aTerm[ii].zTerm, -1 - ); + pTo->pTerm = sqlite3Fts5Strndup(&pParse->rc, p->pTerm, p->nFullTerm); + pTo->nQueryTerm = p->nQueryTerm; + pTo->nFullTerm = p->nFullTerm; pRet->apChild[ii] = sqlite3Fts5ParseNode(pParse, FTS5_STRING, 0, 0, sqlite3Fts5ParseNearset(pParse, 0, pPhrase) ); @@ -223600,6 +237100,14 @@ static Fts5ExprNode *sqlite3Fts5ParseNode( }else{ fts5ExprAddChildren(pRet, pLeft); fts5ExprAddChildren(pRet, pRight); + if( pRet->iHeight>SQLITE_FTS5_MAX_EXPR_DEPTH ){ + sqlite3Fts5ParseError(pParse, + "fts5 expression tree is too large (maximum depth %d)", + SQLITE_FTS5_MAX_EXPR_DEPTH + ); + sqlite3_free(pRet); + pRet = 0; + } } } } @@ -223678,7 +237186,7 @@ static Fts5ExprNode *sqlite3Fts5ParseImplicitAnd( return pRet; } -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) static char *fts5ExprTermPrint(Fts5ExprTerm *pTerm){ sqlite3_int64 nByte = 0; Fts5ExprTerm *p; @@ -223686,16 +237194,17 @@ static char *fts5ExprTermPrint(Fts5ExprTerm *pTerm){ /* Determine the maximum amount of space required. */ for(p=pTerm; p; p=p->pSynonym){ - nByte += (int)strlen(pTerm->zTerm) * 2 + 3 + 2; + nByte += pTerm->nQueryTerm * 2 + 3 + 2; } zQuoted = sqlite3_malloc64(nByte); if( zQuoted ){ int i = 0; for(p=pTerm; p; p=p->pSynonym){ - char *zIn = p->zTerm; + char *zIn = p->pTerm; + char *zEnd = &zIn[p->nQueryTerm]; zQuoted[i++] = '"'; - while( *zIn ){ + while( zIn<zEnd ){ if( *zIn=='"' ) zQuoted[i++] = '"'; zQuoted[i++] = *zIn++; } @@ -223773,8 +237282,10 @@ static char *fts5ExprPrintTcl( zRet = fts5PrintfAppend(zRet, " {"); for(iTerm=0; zRet && iTerm<pPhrase->nTerm; iTerm++){ - char *zTerm = pPhrase->aTerm[iTerm].zTerm; - zRet = fts5PrintfAppend(zRet, "%s%s", iTerm==0?"":" ", zTerm); + Fts5ExprTerm *p = &pPhrase->aTerm[iTerm]; + zRet = fts5PrintfAppend(zRet, "%s%.*s", iTerm==0?"":" ", + p->nQueryTerm, p->pTerm + ); if( pPhrase->aTerm[iTerm].bPrefix ){ zRet = fts5PrintfAppend(zRet, "*"); } @@ -223784,6 +237295,8 @@ static char *fts5ExprPrintTcl( if( zRet==0 ) return 0; } + }else if( pExpr->eType==0 ){ + zRet = sqlite3_mprintf("{}"); }else{ char const *zOp = 0; int i; @@ -224045,14 +237558,14 @@ static void fts5ExprFold( sqlite3_result_int(pCtx, sqlite3Fts5UnicodeFold(iCode, bRemoveDiacritics)); } } -#endif /* ifdef SQLITE_TEST */ +#endif /* if SQLITE_TEST || SQLITE_FTS5_DEBUG */ /* ** This is called during initialization to register the fts5_expr() scalar ** UDF with the SQLite handle passed as the only argument. */ static int sqlite3Fts5ExprInit(Fts5Global *pGlobal, sqlite3 *db){ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) struct Fts5ExprFunc { const char *z; void (*x)(sqlite3_context*,int,sqlite3_value**); @@ -224173,6 +237686,17 @@ static int fts5ExprColsetTest(Fts5Colset *pColset, int iCol){ return 0; } +/* +** pToken is a buffer nToken bytes in size that may or may not contain +** an embedded 0x00 byte. If it does, return the number of bytes in +** the buffer before the 0x00. If it does not, return nToken. +*/ +static int fts5QueryTerm(const char *pToken, int nToken){ + int ii; + for(ii=0; ii<nToken && pToken[ii]; ii++){} + return ii; +} + static int fts5ExprPopulatePoslistsCb( void *pCtx, /* Copy of 2nd argument to xTokenize() */ int tflags, /* Mask of FTS5_TOKEN_* flags */ @@ -224184,22 +237708,33 @@ static int fts5ExprPopulatePoslistsCb( Fts5ExprCtx *p = (Fts5ExprCtx*)pCtx; Fts5Expr *pExpr = p->pExpr; int i; + int nQuery = nToken; + i64 iRowid = pExpr->pRoot->iRowid; UNUSED_PARAM2(iUnused1, iUnused2); - if( nToken>FTS5_MAX_TOKEN_SIZE ) nToken = FTS5_MAX_TOKEN_SIZE; + if( nQuery>FTS5_MAX_TOKEN_SIZE ) nQuery = FTS5_MAX_TOKEN_SIZE; + if( pExpr->pConfig->bTokendata ){ + nQuery = fts5QueryTerm(pToken, nQuery); + } if( (tflags & FTS5_TOKEN_COLOCATED)==0 ) p->iOff++; for(i=0; i<pExpr->nPhrase; i++){ - Fts5ExprTerm *pTerm; + Fts5ExprTerm *pT; if( p->aPopulator[i].bOk==0 ) continue; - for(pTerm=&pExpr->apExprPhrase[i]->aTerm[0]; pTerm; pTerm=pTerm->pSynonym){ - int nTerm = (int)strlen(pTerm->zTerm); - if( (nTerm==nToken || (nTerm<nToken && pTerm->bPrefix)) - && memcmp(pTerm->zTerm, pToken, nTerm)==0 + for(pT=&pExpr->apExprPhrase[i]->aTerm[0]; pT; pT=pT->pSynonym){ + if( (pT->nQueryTerm==nQuery || (pT->nQueryTerm<nQuery && pT->bPrefix)) + && memcmp(pT->pTerm, pToken, pT->nQueryTerm)==0 ){ int rc = sqlite3Fts5PoslistWriterAppend( &pExpr->apExprPhrase[i]->poslist, &p->aPopulator[i].writer, p->iOff ); + if( rc==SQLITE_OK && pExpr->pConfig->bTokendata && !pT->bPrefix ){ + int iCol = p->iOff>>32; + int iTokOff = p->iOff & 0x7FFFFFFF; + rc = sqlite3Fts5IndexIterWriteTokendata( + pT->pIter, pToken, nToken, iRowid, iCol, iTokOff + ); + } if( rc ) return rc; break; } @@ -224336,6 +237871,83 @@ static int sqlite3Fts5ExprPhraseCollist( } /* +** Does the work of the fts5_api.xQueryToken() API method. +*/ +static int sqlite3Fts5ExprQueryToken( + Fts5Expr *pExpr, + int iPhrase, + int iToken, + const char **ppOut, + int *pnOut +){ + Fts5ExprPhrase *pPhrase = 0; + + if( iPhrase<0 || iPhrase>=pExpr->nPhrase ){ + return SQLITE_RANGE; + } + pPhrase = pExpr->apExprPhrase[iPhrase]; + if( iToken<0 || iToken>=pPhrase->nTerm ){ + return SQLITE_RANGE; + } + + *ppOut = pPhrase->aTerm[iToken].pTerm; + *pnOut = pPhrase->aTerm[iToken].nFullTerm; + return SQLITE_OK; +} + +/* +** Does the work of the fts5_api.xInstToken() API method. +*/ +static int sqlite3Fts5ExprInstToken( + Fts5Expr *pExpr, + i64 iRowid, + int iPhrase, + int iCol, + int iOff, + int iToken, + const char **ppOut, + int *pnOut +){ + Fts5ExprPhrase *pPhrase = 0; + Fts5ExprTerm *pTerm = 0; + int rc = SQLITE_OK; + + if( iPhrase<0 || iPhrase>=pExpr->nPhrase ){ + return SQLITE_RANGE; + } + pPhrase = pExpr->apExprPhrase[iPhrase]; + if( iToken<0 || iToken>=pPhrase->nTerm ){ + return SQLITE_RANGE; + } + pTerm = &pPhrase->aTerm[iToken]; + if( pTerm->bPrefix==0 ){ + if( pExpr->pConfig->bTokendata ){ + rc = sqlite3Fts5IterToken( + pTerm->pIter, iRowid, iCol, iOff+iToken, ppOut, pnOut + ); + }else{ + *ppOut = pTerm->pTerm; + *pnOut = pTerm->nFullTerm; + } + } + return rc; +} + +/* +** Clear the token mappings for all Fts5IndexIter objects mannaged by +** the expression passed as the only argument. +*/ +static void sqlite3Fts5ExprClearTokens(Fts5Expr *pExpr){ + int ii; + for(ii=0; ii<pExpr->nPhrase; ii++){ + Fts5ExprTerm *pT; + for(pT=&pExpr->apExprPhrase[ii]->aTerm[0]; pT; pT=pT->pSynonym){ + sqlite3Fts5IndexIterClearTokendata(pT->pIter); + } + } +} + +/* ** 2014 August 11 ** ** The author disclaims copyright to this source code. In place of @@ -224373,10 +237985,15 @@ struct Fts5Hash { /* ** Each entry in the hash table is represented by an object of the -** following type. Each object, its key (a nul-terminated string) and -** its current data are stored in a single memory allocation. The -** key immediately follows the object in memory. The position list -** data immediately follows the key data in memory. +** following type. Each object, its key, and its current data are stored +** in a single memory allocation. The key immediately follows the object +** in memory. The position list data immediately follows the key data +** in memory. +** +** The key is Fts5HashEntry.nKey bytes in size. It consists of a single +** byte identifying the index (either the main term index or a prefix-index), +** followed by the term data. For example: "0token". There is no +** nul-terminator - in this case nKey=6. ** ** The data that follows the key is in a similar, but not identical format ** to the doclist data stored in the database. It is: @@ -224511,8 +238128,7 @@ static int fts5HashResize(Fts5Hash *pHash){ unsigned int iHash; Fts5HashEntry *p = apOld[i]; apOld[i] = p->pHashNext; - iHash = fts5HashKey(nNew, (u8*)fts5EntryKey(p), - (int)strlen(fts5EntryKey(p))); + iHash = fts5HashKey(nNew, (u8*)fts5EntryKey(p), p->nKey); p->pHashNext = apNew[iHash]; apNew[iHash] = p; } @@ -224596,7 +238212,7 @@ static int sqlite3Fts5HashWrite( for(p=pHash->aSlot[iHash]; p; p=p->pHashNext){ char *zKey = fts5EntryKey(p); if( zKey[0]==bByte - && p->nKey==nToken + && p->nKey==nToken+1 && memcmp(&zKey[1], pToken, nToken)==0 ){ break; @@ -224626,9 +238242,9 @@ static int sqlite3Fts5HashWrite( zKey[0] = bByte; memcpy(&zKey[1], pToken, nToken); assert( iHash==fts5HashKey(pHash->nSlot, (u8*)zKey, nToken+1) ); - p->nKey = nToken; + p->nKey = nToken+1; zKey[nToken+1] = '\0'; - p->nData = nToken+1 + 1 + sizeof(Fts5HashEntry); + p->nData = nToken+1 + sizeof(Fts5HashEntry); p->pHashNext = pHash->aSlot[iHash]; pHash->aSlot[iHash] = p; pHash->nEntry++; @@ -224745,12 +238361,17 @@ static Fts5HashEntry *fts5HashEntryMerge( *ppOut = p1; p1 = 0; }else{ - int i = 0; char *zKey1 = fts5EntryKey(p1); char *zKey2 = fts5EntryKey(p2); - while( zKey1[i]==zKey2[i] ) i++; + int nMin = MIN(p1->nKey, p2->nKey); + + int cmp = memcmp(zKey1, zKey2, nMin); + if( cmp==0 ){ + cmp = p1->nKey - p2->nKey; + } + assert( cmp!=0 ); - if( ((u8)zKey1[i])>((u8)zKey2[i]) ){ + if( cmp>0 ){ /* p2 is smaller */ *ppOut = p2; ppOut = &p2->pScanNext; @@ -224769,10 +238390,8 @@ static Fts5HashEntry *fts5HashEntryMerge( } /* -** Extract all tokens from hash table iHash and link them into a list -** in sorted order. The hash table is cleared before returning. It is -** the responsibility of the caller to free the elements of the returned -** list. +** Link all tokens from hash table iHash into a list in sorted order. The +** tokens are not removed from the hash table. */ static int fts5HashEntrySort( Fts5Hash *pHash, @@ -224794,7 +238413,7 @@ static int fts5HashEntrySort( Fts5HashEntry *pIter; for(pIter=pHash->aSlot[iSlot]; pIter; pIter=pIter->pHashNext){ if( pTerm==0 - || (pIter->nKey+1>=nTerm && 0==memcmp(fts5EntryKey(pIter), pTerm, nTerm)) + || (pIter->nKey>=nTerm && 0==memcmp(fts5EntryKey(pIter), pTerm, nTerm)) ){ Fts5HashEntry *pEntry = pIter; pEntry->pScanNext = 0; @@ -224812,7 +238431,6 @@ static int fts5HashEntrySort( pList = fts5HashEntryMerge(pList, ap[i]); } - pHash->nEntry = 0; sqlite3_free(ap); *ppSorted = pList; return SQLITE_OK; @@ -224834,12 +238452,11 @@ static int sqlite3Fts5HashQuery( for(p=pHash->aSlot[iHash]; p; p=p->pHashNext){ zKey = fts5EntryKey(p); - assert( p->nKey+1==(int)strlen(zKey) ); - if( nTerm==p->nKey+1 && memcmp(zKey, pTerm, nTerm)==0 ) break; + if( nTerm==p->nKey && memcmp(zKey, pTerm, nTerm)==0 ) break; } if( p ){ - int nHashPre = sizeof(Fts5HashEntry) + nTerm + 1; + int nHashPre = sizeof(Fts5HashEntry) + nTerm; int nList = p->nData - nHashPre; u8 *pRet = (u8*)(*ppOut = sqlite3_malloc64(nPre + nList + 10)); if( pRet ){ @@ -224866,6 +238483,28 @@ static int sqlite3Fts5HashScanInit( return fts5HashEntrySort(p, pTerm, nTerm, &p->pScan); } +#ifdef SQLITE_DEBUG +static int fts5HashCount(Fts5Hash *pHash){ + int nEntry = 0; + int ii; + for(ii=0; ii<pHash->nSlot; ii++){ + Fts5HashEntry *p = 0; + for(p=pHash->aSlot[ii]; p; p=p->pHashNext){ + nEntry++; + } + } + return nEntry; +} +#endif + +/* +** Return true if the hash table is empty, false otherwise. +*/ +static int sqlite3Fts5HashIsEmpty(Fts5Hash *pHash){ + assert( pHash->nEntry==fts5HashCount(pHash) ); + return pHash->nEntry==0; +} + static void sqlite3Fts5HashScanNext(Fts5Hash *p){ assert( !sqlite3Fts5HashScanEof(p) ); p->pScan = p->pScan->pScanNext; @@ -224878,19 +238517,22 @@ static int sqlite3Fts5HashScanEof(Fts5Hash *p){ static void sqlite3Fts5HashScanEntry( Fts5Hash *pHash, const char **pzTerm, /* OUT: term (nul-terminated) */ + int *pnTerm, /* OUT: Size of term in bytes */ const u8 **ppDoclist, /* OUT: pointer to doclist */ int *pnDoclist /* OUT: size of doclist in bytes */ ){ Fts5HashEntry *p; if( (p = pHash->pScan) ){ char *zKey = fts5EntryKey(p); - int nTerm = (int)strlen(zKey); + int nTerm = p->nKey; fts5HashAddPoslistSize(pHash, p, 0); *pzTerm = zKey; - *ppDoclist = (const u8*)&zKey[nTerm+1]; - *pnDoclist = p->nData - (sizeof(Fts5HashEntry) + nTerm + 1); + *pnTerm = nTerm; + *ppDoclist = (const u8*)&zKey[nTerm]; + *pnDoclist = p->nData - (sizeof(Fts5HashEntry) + nTerm); }else{ *pzTerm = 0; + *pnTerm = 0; *ppDoclist = 0; *pnDoclist = 0; } @@ -224952,6 +238594,26 @@ static void sqlite3Fts5HashScanEntry( # error "FTS5_MAX_PREFIX_INDEXES is too large" #endif +#define FTS5_MAX_LEVEL 64 + +/* +** There are two versions of the format used for the structure record: +** +** 1. the legacy format, that may be read by all fts5 versions, and +** +** 2. the V2 format, which is used by contentless_delete=1 databases. +** +** Both begin with a 4-byte "configuration cookie" value. Then, a legacy +** format structure record contains a varint - the number of levels in +** the structure. Whereas a V2 structure record contains the constant +** 4 bytes [0xff 0x00 0x00 0x01]. This is unambiguous as the value of a +** varint has to be at least 16256 to begin with "0xFF". And the default +** maximum number of levels is 64. +** +** See below for more on structure record formats. +*/ +#define FTS5_STRUCTURE_V2 "\xFF\x00\x00\x01" + /* ** Details: ** @@ -224959,7 +238621,7 @@ static void sqlite3Fts5HashScanEntry( ** ** CREATE TABLE %_data(id INTEGER PRIMARY KEY, block BLOB); ** -** , contains the following 5 types of records. See the comments surrounding +** , contains the following 6 types of records. See the comments surrounding ** the FTS5_*_ROWID macros below for a description of how %_data rowids are ** assigned to each fo them. ** @@ -224968,12 +238630,12 @@ static void sqlite3Fts5HashScanEntry( ** The set of segments that make up an index - the index structure - are ** recorded in a single record within the %_data table. The record consists ** of a single 32-bit configuration cookie value followed by a list of -** SQLite varints. If the FTS table features more than one index (because -** there are one or more prefix indexes), it is guaranteed that all share -** the same cookie value. +** SQLite varints. ** -** Immediately following the configuration cookie, the record begins with -** three varints: +** If the structure record is a V2 record, the configuration cookie is +** followed by the following 4 bytes: [0xFF 0x00 0x00 0x01]. +** +** Next, the record continues with three varints: ** ** + number of levels, ** + total number of segments on all levels, @@ -224988,6 +238650,12 @@ static void sqlite3Fts5HashScanEntry( ** + first leaf page number (often 1, always greater than 0) ** + final leaf page number ** +** Then, for V2 structures only: +** +** + lower origin counter value, +** + upper origin counter value, +** + the number of tombstone hash pages. +** ** 2. The Averages Record: ** ** A single record within the %_data table. The data is a list of varints. @@ -225103,6 +238771,38 @@ static void sqlite3Fts5HashScanEntry( ** * A list of delta-encoded varints - the first rowid on each subsequent ** child page. ** +** 6. Tombstone Hash Page +** +** These records are only ever present in contentless_delete=1 tables. +** There are zero or more of these associated with each segment. They +** are used to store the tombstone rowids for rows contained in the +** associated segments. +** +** The set of nHashPg tombstone hash pages associated with a single +** segment together form a single hash table containing tombstone rowids. +** To find the page of the hash on which a key might be stored: +** +** iPg = (rowid % nHashPg) +** +** Then, within page iPg, which has nSlot slots: +** +** iSlot = (rowid / nHashPg) % nSlot +** +** Each tombstone hash page begins with an 8 byte header: +** +** 1-byte: Key-size (the size in bytes of each slot). Either 4 or 8. +** 1-byte: rowid-0-tombstone flag. This flag is only valid on the +** first tombstone hash page for each segment (iPg=0). If set, +** the hash table contains rowid 0. If clear, it does not. +** Rowid 0 is handled specially. +** 2-bytes: unused. +** 4-bytes: Big-endian integer containing number of entries on page. +** +** Following this are nSlot 4 or 8 byte slots (depending on the key-size +** in the first byte of the page header). The number of slots may be +** determined based on the size of the page record and the key-size: +** +** nSlot = (nByte - 8) / key-size */ /* @@ -225136,6 +238836,7 @@ static void sqlite3Fts5HashScanEntry( #define FTS5_SEGMENT_ROWID(segid, pgno) fts5_dri(segid, 0, 0, pgno) #define FTS5_DLIDX_ROWID(segid, height, pgno) fts5_dri(segid, 1, height, pgno) +#define FTS5_TOMBSTONE_ROWID(segid,ipg) fts5_dri(segid+(1<<16), 0, 0, ipg) #ifdef SQLITE_DEBUG static int sqlite3Fts5Corrupt() { return SQLITE_CORRUPT_VTAB; } @@ -225162,6 +238863,9 @@ typedef struct Fts5SegWriter Fts5SegWriter; typedef struct Fts5Structure Fts5Structure; typedef struct Fts5StructureLevel Fts5StructureLevel; typedef struct Fts5StructureSegment Fts5StructureSegment; +typedef struct Fts5TokenDataIter Fts5TokenDataIter; +typedef struct Fts5TokenDataMap Fts5TokenDataMap; +typedef struct Fts5TombstoneArray Fts5TombstoneArray; struct Fts5Data { u8 *p; /* Pointer to buffer containing record */ @@ -225171,6 +238875,12 @@ struct Fts5Data { /* ** One object per %_data table. +** +** nContentlessDelete: +** The number of contentless delete operations since the most recent +** call to fts5IndexFlush() or fts5IndexDiscardData(). This is tracked +** so that extra auto-merge work can be done by fts5IndexFlush() to +** account for the delete operations. */ struct Fts5Index { Fts5Config *pConfig; /* Virtual table configuration */ @@ -225185,19 +238895,25 @@ struct Fts5Index { int nPendingData; /* Current bytes of pending data */ i64 iWriteRowid; /* Rowid for current doc being written */ int bDelete; /* Current write is a delete */ + int nContentlessDelete; /* Number of contentless delete ops */ + int nPendingRow; /* Number of INSERT in hash table */ /* Error state. */ int rc; /* Current error code */ + int flushRc; /* State used by the fts5DataXXX() functions. */ sqlite3_blob *pReader; /* RO incr-blob open on %_data table */ sqlite3_stmt *pWriter; /* "INSERT ... %_data VALUES(?,?)" */ sqlite3_stmt *pDeleter; /* "DELETE FROM %_data ... id>=? AND id<=?" */ sqlite3_stmt *pIdxWriter; /* "INSERT ... %_idx VALUES(?,?,?,?)" */ - sqlite3_stmt *pIdxDeleter; /* "DELETE FROM %_idx WHERE segid=? */ + sqlite3_stmt *pIdxDeleter; /* "DELETE FROM %_idx WHERE segid=?" */ sqlite3_stmt *pIdxSelect; + sqlite3_stmt *pIdxNextSelect; int nRead; /* Total number of blocks read */ + sqlite3_stmt *pDeleteFromIdx; + sqlite3_stmt *pDataVersion; i64 iStructVersion; /* data_version when pStruct read */ Fts5Structure *pStruct; /* Current db structure (or NULL) */ @@ -225217,11 +238933,23 @@ struct Fts5DoclistIter { ** The contents of the "structure" record for each index are represented ** using an Fts5Structure record in memory. Which uses instances of the ** other Fts5StructureXXX types as components. +** +** nOriginCntr: +** This value is set to non-zero for structure records created for +** contentlessdelete=1 tables only. In that case it represents the +** origin value to apply to the next top-level segment created. */ struct Fts5StructureSegment { int iSegid; /* Segment id */ int pgnoFirst; /* First leaf page number in segment */ int pgnoLast; /* Last leaf page number in segment */ + + /* contentlessdelete=1 tables only: */ + u64 iOrigin1; + u64 iOrigin2; + int nPgTombstone; /* Number of tombstone hash table pages */ + u64 nEntryTombstone; /* Number of tombstone entries that "count" */ + u64 nEntry; /* Number of rows in this segment */ }; struct Fts5StructureLevel { int nMerge; /* Number of segments in incr-merge */ @@ -225231,6 +238959,7 @@ struct Fts5StructureLevel { struct Fts5Structure { int nRef; /* Object reference count */ u64 nWriteCounter; /* Total leaves written to level 0 */ + u64 nOriginCntr; /* Origin value for next top-level segment */ int nSegment; /* Total segments in this structure */ int nLevel; /* Number of levels in this index */ Fts5StructureLevel aLevel[1]; /* Array of nLevel level objects */ @@ -225290,9 +239019,6 @@ struct Fts5CResult { ** iLeafOffset: ** Byte offset within the current leaf that is the first byte of the ** position list data (one byte passed the position-list size field). -** rowid field of the current entry. Usually this is the size field of the -** position list data. The exception is if the rowid for the current entry -** is the last thing on the leaf page. ** ** pLeaf: ** Buffer containing current leaf page data. Set to NULL at EOF. @@ -225322,6 +239048,13 @@ struct Fts5CResult { ** ** iTermIdx: ** Index of current term on iTermLeafPgno. +** +** apTombstone/nTombstone: +** These are used for contentless_delete=1 tables only. When the cursor +** is first allocated, the apTombstone[] array is allocated so that it +** is large enough for all tombstones hash pages associated with the +** segment. The pages themselves are loaded lazily from the database as +** they are required. */ struct Fts5SegIter { Fts5StructureSegment *pSeg; /* Segment to iterate through */ @@ -225330,6 +239063,7 @@ struct Fts5SegIter { Fts5Data *pLeaf; /* Current leaf data */ Fts5Data *pNextLeaf; /* Leaf page (iLeafPgno+1) */ i64 iLeafOffset; /* Byte offset within current leaf */ + Fts5TombstoneArray *pTombArray; /* Array of tombstone pages */ /* Next method */ void (*xNext)(Fts5Index*, Fts5SegIter*, int*); @@ -225357,6 +239091,15 @@ struct Fts5SegIter { }; /* +** Array of tombstone pages. Reference counted. +*/ +struct Fts5TombstoneArray { + int nRef; /* Number of pointers to this object */ + int nTombstone; + Fts5Data *apTombstone[1]; /* Array of tombstone pages */ +}; + +/* ** Argument is a pointer to an Fts5Data structure that contains a ** leaf page. */ @@ -225400,9 +239143,16 @@ struct Fts5SegIter { ** poslist: ** Used by sqlite3Fts5IterPoslist() when the poslist needs to be buffered. ** There is no way to tell if this is populated or not. +** +** pColset: +** If not NULL, points to an object containing a set of column indices. +** Only matches that occur in one of these columns will be returned. +** The Fts5Iter does not own the Fts5Colset object, and so it is not +** freed when the iterator is closed - it is owned by the upper layer. */ struct Fts5Iter { Fts5IndexIter base; /* Base class containing output vars */ + Fts5TokenDataIter *pTokenDataIter; Fts5Index *pIndex; /* Index that owns this iterator */ Fts5Buffer poslist; /* Buffer containing current poslist */ @@ -225420,7 +239170,6 @@ struct Fts5Iter { Fts5SegIter aSeg[1]; /* Array of segment iterators */ }; - /* ** An instance of the following type is used to iterate through the contents ** of a doclist-index record. @@ -225460,6 +239209,60 @@ static u16 fts5GetU16(const u8 *aIn){ } /* +** The only argument points to a buffer at least 8 bytes in size. This +** function interprets the first 8 bytes of the buffer as a 64-bit big-endian +** unsigned integer and returns the result. +*/ +static u64 fts5GetU64(u8 *a){ + return ((u64)a[0] << 56) + + ((u64)a[1] << 48) + + ((u64)a[2] << 40) + + ((u64)a[3] << 32) + + ((u64)a[4] << 24) + + ((u64)a[5] << 16) + + ((u64)a[6] << 8) + + ((u64)a[7] << 0); +} + +/* +** The only argument points to a buffer at least 4 bytes in size. This +** function interprets the first 4 bytes of the buffer as a 32-bit big-endian +** unsigned integer and returns the result. +*/ +static u32 fts5GetU32(const u8 *a){ + return ((u32)a[0] << 24) + + ((u32)a[1] << 16) + + ((u32)a[2] << 8) + + ((u32)a[3] << 0); +} + +/* +** Write iVal, formated as a 64-bit big-endian unsigned integer, to the +** buffer indicated by the first argument. +*/ +static void fts5PutU64(u8 *a, u64 iVal){ + a[0] = ((iVal >> 56) & 0xFF); + a[1] = ((iVal >> 48) & 0xFF); + a[2] = ((iVal >> 40) & 0xFF); + a[3] = ((iVal >> 32) & 0xFF); + a[4] = ((iVal >> 24) & 0xFF); + a[5] = ((iVal >> 16) & 0xFF); + a[6] = ((iVal >> 8) & 0xFF); + a[7] = ((iVal >> 0) & 0xFF); +} + +/* +** Write iVal, formated as a 32-bit big-endian unsigned integer, to the +** buffer indicated by the first argument. +*/ +static void fts5PutU32(u8 *a, u32 iVal){ + a[0] = ((iVal >> 24) & 0xFF); + a[1] = ((iVal >> 16) & 0xFF); + a[2] = ((iVal >> 8) & 0xFF); + a[3] = ((iVal >> 0) & 0xFF); +} + +/* ** Allocate and return a buffer at least nByte bytes in size. ** ** If an OOM error is encountered, return NULL and set the error code in @@ -225686,10 +239489,17 @@ static void fts5DataDelete(Fts5Index *p, i64 iFirst, i64 iLast){ /* ** Remove all records associated with segment iSegid. */ -static void fts5DataRemoveSegment(Fts5Index *p, int iSegid){ +static void fts5DataRemoveSegment(Fts5Index *p, Fts5StructureSegment *pSeg){ + int iSegid = pSeg->iSegid; i64 iFirst = FTS5_SEGMENT_ROWID(iSegid, 0); i64 iLast = FTS5_SEGMENT_ROWID(iSegid+1, 0)-1; fts5DataDelete(p, iFirst, iLast); + + if( pSeg->nPgTombstone ){ + i64 iTomb1 = FTS5_TOMBSTONE_ROWID(iSegid, 0); + i64 iTomb2 = FTS5_TOMBSTONE_ROWID(iSegid, pSeg->nPgTombstone-1); + fts5DataDelete(p, iTomb1, iTomb2); + } if( p->pIdxDeleter==0 ){ Fts5Config *pConfig = p->pConfig; fts5IndexPrepareStmt(p, &p->pIdxDeleter, sqlite3_mprintf( @@ -225800,11 +239610,19 @@ static int fts5StructureDecode( int nSegment = 0; sqlite3_int64 nByte; /* Bytes of space to allocate at pRet */ Fts5Structure *pRet = 0; /* Structure object to return */ + int bStructureV2 = 0; /* True for FTS5_STRUCTURE_V2 */ + u64 nOriginCntr = 0; /* Largest origin value seen so far */ /* Grab the cookie value */ if( piCookie ) *piCookie = sqlite3Fts5Get32(pData); i = 4; + /* Check if this is a V2 structure record. Set bStructureV2 if it is. */ + if( 0==memcmp(&pData[i], FTS5_STRUCTURE_V2, 4) ){ + i += 4; + bStructureV2 = 1; + } + /* Read the total number of levels and segments from the start of the ** structure record. */ i += fts5GetVarint32(&pData[i], nLevel); @@ -225851,9 +239669,18 @@ static int fts5StructureDecode( rc = FTS5_CORRUPT; break; } + assert( pSeg!=0 ); i += fts5GetVarint32(&pData[i], pSeg->iSegid); i += fts5GetVarint32(&pData[i], pSeg->pgnoFirst); i += fts5GetVarint32(&pData[i], pSeg->pgnoLast); + if( bStructureV2 ){ + i += fts5GetVarint(&pData[i], &pSeg->iOrigin1); + i += fts5GetVarint(&pData[i], &pSeg->iOrigin2); + i += fts5GetVarint32(&pData[i], pSeg->nPgTombstone); + i += fts5GetVarint(&pData[i], &pSeg->nEntryTombstone); + i += fts5GetVarint(&pData[i], &pSeg->nEntry); + nOriginCntr = MAX(nOriginCntr, pSeg->iOrigin2); + } if( pSeg->pgnoLast<pSeg->pgnoFirst ){ rc = FTS5_CORRUPT; break; @@ -225864,6 +239691,9 @@ static int fts5StructureDecode( } } if( nSegment!=0 && rc==SQLITE_OK ) rc = FTS5_CORRUPT; + if( bStructureV2 ){ + pRet->nOriginCntr = nOriginCntr+1; + } if( rc!=SQLITE_OK ){ fts5StructureRelease(pRet); @@ -225881,6 +239711,7 @@ static int fts5StructureDecode( */ static void fts5StructureAddLevel(int *pRc, Fts5Structure **ppStruct){ fts5StructureMakeWritable(pRc, ppStruct); + assert( (ppStruct!=0 && (*ppStruct)!=0) || (*pRc)!=SQLITE_OK ); if( *pRc==SQLITE_OK ){ Fts5Structure *pStruct = *ppStruct; int nLevel = pStruct->nLevel; @@ -226075,6 +239906,7 @@ static void fts5StructureWrite(Fts5Index *p, Fts5Structure *pStruct){ Fts5Buffer buf; /* Buffer to serialize record into */ int iLvl; /* Used to iterate through levels */ int iCookie; /* Cookie value to store */ + int nHdr = (pStruct->nOriginCntr>0 ? (4+4+9+9+9) : (4+9+9)); assert( pStruct->nSegment==fts5StructureCountSegments(pStruct) ); memset(&buf, 0, sizeof(Fts5Buffer)); @@ -226083,9 +239915,12 @@ static void fts5StructureWrite(Fts5Index *p, Fts5Structure *pStruct){ iCookie = p->pConfig->iCookie; if( iCookie<0 ) iCookie = 0; - if( 0==sqlite3Fts5BufferSize(&p->rc, &buf, 4+9+9+9) ){ + if( 0==sqlite3Fts5BufferSize(&p->rc, &buf, nHdr) ){ sqlite3Fts5Put32(buf.p, iCookie); buf.n = 4; + if( pStruct->nOriginCntr>0 ){ + fts5BufferSafeAppendBlob(&buf, FTS5_STRUCTURE_V2, 4); + } fts5BufferSafeAppendVarint(&buf, pStruct->nLevel); fts5BufferSafeAppendVarint(&buf, pStruct->nSegment); fts5BufferSafeAppendVarint(&buf, (i64)pStruct->nWriteCounter); @@ -226099,9 +239934,17 @@ static void fts5StructureWrite(Fts5Index *p, Fts5Structure *pStruct){ assert( pLvl->nMerge<=pLvl->nSeg ); for(iSeg=0; iSeg<pLvl->nSeg; iSeg++){ - fts5BufferAppendVarint(&p->rc, &buf, pLvl->aSeg[iSeg].iSegid); - fts5BufferAppendVarint(&p->rc, &buf, pLvl->aSeg[iSeg].pgnoFirst); - fts5BufferAppendVarint(&p->rc, &buf, pLvl->aSeg[iSeg].pgnoLast); + Fts5StructureSegment *pSeg = &pLvl->aSeg[iSeg]; + fts5BufferAppendVarint(&p->rc, &buf, pSeg->iSegid); + fts5BufferAppendVarint(&p->rc, &buf, pSeg->pgnoFirst); + fts5BufferAppendVarint(&p->rc, &buf, pSeg->pgnoLast); + if( pStruct->nOriginCntr>0 ){ + fts5BufferAppendVarint(&p->rc, &buf, pSeg->iOrigin1); + fts5BufferAppendVarint(&p->rc, &buf, pSeg->iOrigin2); + fts5BufferAppendVarint(&p->rc, &buf, pSeg->nPgTombstone); + fts5BufferAppendVarint(&p->rc, &buf, pSeg->nEntryTombstone); + fts5BufferAppendVarint(&p->rc, &buf, pSeg->nEntry); + } } } @@ -226244,9 +240087,9 @@ static int fts5DlidxLvlNext(Fts5DlidxLvl *pLvl){ } if( iOff<pData->nn ){ - i64 iVal; + u64 iVal; pLvl->iLeafPgno += (iOff - pLvl->iOff) + 1; - iOff += fts5GetVarint(&pData->p[iOff], (u64*)&iVal); + iOff += fts5GetVarint(&pData->p[iOff], &iVal); pLvl->iRowid += iVal; pLvl->iOff = iOff; }else{ @@ -226339,42 +240182,25 @@ static int fts5DlidxLvlPrev(Fts5DlidxLvl *pLvl){ pLvl->bEof = 1; }else{ u8 *a = pLvl->pData->p; - i64 iVal; - int iLimit; - int ii; - int nZero = 0; - - /* Currently iOff points to the first byte of a varint. This block - ** decrements iOff until it points to the first byte of the previous - ** varint. Taking care not to read any memory locations that occur - ** before the buffer in memory. */ - iLimit = (iOff>9 ? iOff-9 : 0); - for(iOff--; iOff>iLimit; iOff--){ - if( (a[iOff-1] & 0x80)==0 ) break; - } - - fts5GetVarint(&a[iOff], (u64*)&iVal); - pLvl->iRowid -= iVal; - pLvl->iLeafPgno--; - - /* Skip backwards past any 0x00 varints. */ - for(ii=iOff-1; ii>=pLvl->iFirstOff && a[ii]==0x00; ii--){ - nZero++; - } - if( ii>=pLvl->iFirstOff && (a[ii] & 0x80) ){ - /* The byte immediately before the last 0x00 byte has the 0x80 bit - ** set. So the last 0x00 is only a varint 0 if there are 8 more 0x80 - ** bytes before a[ii]. */ - int bZero = 0; /* True if last 0x00 counts */ - if( (ii-8)>=pLvl->iFirstOff ){ - int j; - for(j=1; j<=8 && (a[ii-j] & 0x80); j++); - bZero = (j>8); + + pLvl->iOff = 0; + fts5DlidxLvlNext(pLvl); + while( 1 ){ + int nZero = 0; + int ii = pLvl->iOff; + u64 delta = 0; + + while( a[ii]==0 ){ + nZero++; + ii++; } - if( bZero==0 ) nZero--; + ii += sqlite3Fts5GetVarint(&a[ii], &delta); + + if( ii>=iOff ) break; + pLvl->iLeafPgno += nZero+1; + pLvl->iRowid += delta; + pLvl->iOff = ii; } - pLvl->iLeafPgno -= nZero; - pLvl->iOff = iOff - nZero; } return pLvl->bEof; @@ -226570,7 +240396,7 @@ static void fts5SegIterLoadRowid(Fts5Index *p, Fts5SegIter *pIter){ i64 iOff = pIter->iLeafOffset; ASSERT_SZLEAF_OK(pIter->pLeaf); - if( iOff>=pIter->pLeaf->szLeaf ){ + while( iOff>=pIter->pLeaf->szLeaf ){ fts5SegIterNextPage(p, pIter); if( pIter->pLeaf==0 ){ if( p->rc==SQLITE_OK ) p->rc = FTS5_CORRUPT; @@ -226642,6 +240468,25 @@ static void fts5SegIterSetNext(Fts5Index *p, Fts5SegIter *pIter){ } /* +** Allocate a tombstone hash page array object (pIter->pTombArray) for +** the iterator passed as the second argument. If an OOM error occurs, +** leave an error in the Fts5Index object. +*/ +static void fts5SegIterAllocTombstone(Fts5Index *p, Fts5SegIter *pIter){ + const int nTomb = pIter->pSeg->nPgTombstone; + if( nTomb>0 ){ + int nByte = nTomb * sizeof(Fts5Data*) + sizeof(Fts5TombstoneArray); + Fts5TombstoneArray *pNew; + pNew = (Fts5TombstoneArray*)sqlite3Fts5MallocZero(&p->rc, nByte); + if( pNew ){ + pNew->nTombstone = nTomb; + pNew->nRef = 1; + pIter->pTombArray = pNew; + } + } +} + +/* ** Initialize the iterator object pIter to iterate through the entries in ** segment pSeg. The iterator is left pointing to the first entry when ** this function returns. @@ -226669,10 +240514,12 @@ static void fts5SegIterInit( fts5SegIterSetNext(p, pIter); pIter->pSeg = pSeg; pIter->iLeafPgno = pSeg->pgnoFirst-1; - fts5SegIterNextPage(p, pIter); + do { + fts5SegIterNextPage(p, pIter); + }while( p->rc==SQLITE_OK && pIter->pLeaf && pIter->pLeaf->nn==4 ); } - if( p->rc==SQLITE_OK ){ + if( p->rc==SQLITE_OK && pIter->pLeaf ){ pIter->iLeafOffset = 4; assert( pIter->pLeaf!=0 ); assert_nc( pIter->pLeaf->nn>4 ); @@ -226680,6 +240527,7 @@ static void fts5SegIterInit( pIter->iPgidxOff = pIter->pLeaf->szLeaf+1; fts5SegIterLoadTerm(p, pIter, 0); fts5SegIterLoadNPos(p, pIter); + fts5SegIterAllocTombstone(p, pIter); } } @@ -226866,7 +240714,7 @@ static void fts5SegIterNext_None( iOff = pIter->iLeafOffset; /* Next entry is on the next page */ - if( pIter->pSeg && iOff>=pIter->pLeaf->szLeaf ){ + while( pIter->pSeg && iOff>=pIter->pLeaf->szLeaf ){ fts5SegIterNextPage(p, pIter); if( p->rc || pIter->pLeaf==0 ) return; pIter->iRowid = 0; @@ -226890,15 +240738,16 @@ static void fts5SegIterNext_None( }else{ const u8 *pList = 0; const char *zTerm = 0; + int nTerm = 0; int nList; sqlite3Fts5HashScanNext(p->pHash); - sqlite3Fts5HashScanEntry(p->pHash, &zTerm, &pList, &nList); + sqlite3Fts5HashScanEntry(p->pHash, &zTerm, &nTerm, &pList, &nList); if( pList==0 ) goto next_none_eof; pIter->pLeaf->p = (u8*)pList; pIter->pLeaf->nn = nList; pIter->pLeaf->szLeaf = nList; pIter->iEndofDoclist = nList; - sqlite3Fts5BufferSet(&p->rc,&pIter->term, (int)strlen(zTerm), (u8*)zTerm); + sqlite3Fts5BufferSet(&p->rc,&pIter->term, nTerm, (u8*)zTerm); pIter->iLeafOffset = fts5GetVarint(pList, (u64*)&pIter->iRowid); } @@ -226964,11 +240813,12 @@ static void fts5SegIterNext( }else if( pIter->pSeg==0 ){ const u8 *pList = 0; const char *zTerm = 0; + int nTerm = 0; int nList = 0; assert( (pIter->flags & FTS5_SEGITER_ONETERM) || pbNewTerm ); if( 0==(pIter->flags & FTS5_SEGITER_ONETERM) ){ sqlite3Fts5HashScanNext(p->pHash); - sqlite3Fts5HashScanEntry(p->pHash, &zTerm, &pList, &nList); + sqlite3Fts5HashScanEntry(p->pHash, &zTerm, &nTerm, &pList, &nList); } if( pList==0 ){ fts5DataRelease(pIter->pLeaf); @@ -226978,8 +240828,7 @@ static void fts5SegIterNext( pIter->pLeaf->nn = nList; pIter->pLeaf->szLeaf = nList; pIter->iEndofDoclist = nList+1; - sqlite3Fts5BufferSet(&p->rc, &pIter->term, (int)strlen(zTerm), - (u8*)zTerm); + sqlite3Fts5BufferSet(&p->rc, &pIter->term, nTerm, (u8*)zTerm); pIter->iLeafOffset = fts5GetVarint(pList, (u64*)&pIter->iRowid); *pbNewTerm = 1; } @@ -227059,7 +240908,7 @@ static void fts5SegIterReverse(Fts5Index *p, Fts5SegIter *pIter){ Fts5Data *pLast = 0; int pgnoLast = 0; - if( pDlidx ){ + if( pDlidx && p->pConfig->iVersion==FTS5_CURRENT_VERSION ){ int iSegid = pIter->pSeg->iSegid; pgnoLast = fts5DlidxIterPgno(pDlidx); pLast = fts5LeafRead(p, FTS5_SEGMENT_ROWID(iSegid, pgnoLast)); @@ -227365,7 +241214,7 @@ static void fts5SegIterSeekInit( fts5LeafSeek(p, bGe, pIter, pTerm, nTerm); } - if( p->rc==SQLITE_OK && bGe==0 ){ + if( p->rc==SQLITE_OK && (bGe==0 || (flags & FTS5INDEX_QUERY_SCANONETERM)) ){ pIter->flags |= FTS5_SEGITER_ONETERM; if( pIter->pLeaf ){ if( flags & FTS5INDEX_QUERY_DESC ){ @@ -227381,6 +241230,9 @@ static void fts5SegIterSeekInit( } fts5SegIterSetNext(p, pIter); + if( 0==(flags & FTS5INDEX_QUERY_SCANONETERM) ){ + fts5SegIterAllocTombstone(p, pIter); + } /* Either: ** @@ -227397,6 +241249,79 @@ static void fts5SegIterSeekInit( ); } + +/* +** SQL used by fts5SegIterNextInit() to find the page to open. +*/ +static sqlite3_stmt *fts5IdxNextStmt(Fts5Index *p){ + if( p->pIdxNextSelect==0 ){ + Fts5Config *pConfig = p->pConfig; + fts5IndexPrepareStmt(p, &p->pIdxNextSelect, sqlite3_mprintf( + "SELECT pgno FROM '%q'.'%q_idx' WHERE " + "segid=? AND term>? ORDER BY term ASC LIMIT 1", + pConfig->zDb, pConfig->zName + )); + + } + return p->pIdxNextSelect; +} + +/* +** This is similar to fts5SegIterSeekInit(), except that it initializes +** the segment iterator to point to the first term following the page +** with pToken/nToken on it. +*/ +static void fts5SegIterNextInit( + Fts5Index *p, + const char *pTerm, int nTerm, + Fts5StructureSegment *pSeg, /* Description of segment */ + Fts5SegIter *pIter /* Object to populate */ +){ + int iPg = -1; /* Page of segment to open */ + int bDlidx = 0; + sqlite3_stmt *pSel = 0; /* SELECT to find iPg */ + + pSel = fts5IdxNextStmt(p); + if( pSel ){ + assert( p->rc==SQLITE_OK ); + sqlite3_bind_int(pSel, 1, pSeg->iSegid); + sqlite3_bind_blob(pSel, 2, pTerm, nTerm, SQLITE_STATIC); + + if( sqlite3_step(pSel)==SQLITE_ROW ){ + i64 val = sqlite3_column_int64(pSel, 0); + iPg = (int)(val>>1); + bDlidx = (val & 0x0001); + } + p->rc = sqlite3_reset(pSel); + sqlite3_bind_null(pSel, 2); + if( p->rc ) return; + } + + memset(pIter, 0, sizeof(*pIter)); + pIter->pSeg = pSeg; + pIter->flags |= FTS5_SEGITER_ONETERM; + if( iPg>=0 ){ + pIter->iLeafPgno = iPg - 1; + fts5SegIterNextPage(p, pIter); + fts5SegIterSetNext(p, pIter); + } + if( pIter->pLeaf ){ + const u8 *a = pIter->pLeaf->p; + int iTermOff = 0; + + pIter->iPgidxOff = pIter->pLeaf->szLeaf; + pIter->iPgidxOff += fts5GetVarint32(&a[pIter->iPgidxOff], iTermOff); + pIter->iLeafOffset = iTermOff; + fts5SegIterLoadTerm(p, pIter, 0); + fts5SegIterLoadNPos(p, pIter); + if( bDlidx ) fts5SegIterLoadDlidx(p, pIter); + + assert( p->rc!=SQLITE_OK || + fts5BufferCompareBlob(&pIter->term, (const u8*)pTerm, nTerm)>0 + ); + } +} + /* ** Initialize the object pIter to point to term pTerm/nTerm within the ** in-memory hash table. If there is no such term in the hash-table, the @@ -227423,14 +241348,21 @@ static void fts5SegIterHashInit( const u8 *pList = 0; p->rc = sqlite3Fts5HashScanInit(p->pHash, (const char*)pTerm, nTerm); - sqlite3Fts5HashScanEntry(p->pHash, (const char**)&z, &pList, &nList); - n = (z ? (int)strlen((const char*)z) : 0); + sqlite3Fts5HashScanEntry(p->pHash, (const char**)&z, &n, &pList, &nList); if( pList ){ pLeaf = fts5IdxMalloc(p, sizeof(Fts5Data)); if( pLeaf ){ pLeaf->p = (u8*)pList; } } + + /* The call to sqlite3Fts5HashScanInit() causes the hash table to + ** fill the size field of all existing position lists. This means they + ** can no longer be appended to. Since the only scenario in which they + ** can be appended to is if the previous operation on this table was + ** a DELETE, by clearing the Fts5Index.bDelete flag we can avoid this + ** possibility altogether. */ + p->bDelete = 0; }else{ p->rc = sqlite3Fts5HashQuery(p->pHash, sizeof(Fts5Data), (const char*)pTerm, nTerm, (void**)&pLeaf, &nList @@ -227462,12 +241394,44 @@ static void fts5SegIterHashInit( } /* +** Array ap[] contains n elements. Release each of these elements using +** fts5DataRelease(). Then free the array itself using sqlite3_free(). +*/ +static void fts5IndexFreeArray(Fts5Data **ap, int n){ + if( ap ){ + int ii; + for(ii=0; ii<n; ii++){ + fts5DataRelease(ap[ii]); + } + sqlite3_free(ap); + } +} + +/* +** Decrement the ref-count of the object passed as the only argument. If it +** reaches 0, free it and its contents. +*/ +static void fts5TombstoneArrayDelete(Fts5TombstoneArray *p){ + if( p ){ + p->nRef--; + if( p->nRef<=0 ){ + int ii; + for(ii=0; ii<p->nTombstone; ii++){ + fts5DataRelease(p->apTombstone[ii]); + } + sqlite3_free(p); + } + } +} + +/* ** Zero the iterator passed as the only argument. */ static void fts5SegIterClear(Fts5SegIter *pIter){ fts5BufferFree(&pIter->term); fts5DataRelease(pIter->pLeaf); fts5DataRelease(pIter->pNextLeaf); + fts5TombstoneArrayDelete(pIter->pTombArray); fts5DlidxIterFree(pIter->pDlidx); sqlite3_free(pIter->aRowidOffset); memset(pIter, 0, sizeof(Fts5SegIter)); @@ -227601,7 +241565,6 @@ static int fts5MultiIterDoCompare(Fts5Iter *pIter, int iOut){ assert_nc( i2!=0 ); pRes->bTermEq = 1; if( p1->iRowid==p2->iRowid ){ - p1->bDel = p2->bDel; return i2; } res = ((p1->iRowid > p2->iRowid)==pIter->bRev) ? -1 : +1; @@ -227620,7 +241583,8 @@ static int fts5MultiIterDoCompare(Fts5Iter *pIter, int iOut){ /* ** Move the seg-iter so that it points to the first rowid on page iLeafPgno. -** It is an error if leaf iLeafPgno does not exist or contains no rowids. +** It is an error if leaf iLeafPgno does not exist. Unless the db is +** a 'secure-delete' db, if it contains no rowids then this is also an error. */ static void fts5SegIterGotoPage( Fts5Index *p, /* FTS5 backend object */ @@ -227635,21 +241599,23 @@ static void fts5SegIterGotoPage( fts5DataRelease(pIter->pNextLeaf); pIter->pNextLeaf = 0; pIter->iLeafPgno = iLeafPgno-1; - fts5SegIterNextPage(p, pIter); - assert( p->rc!=SQLITE_OK || pIter->iLeafPgno==iLeafPgno ); - if( p->rc==SQLITE_OK && ALWAYS(pIter->pLeaf!=0) ){ + while( p->rc==SQLITE_OK ){ int iOff; - u8 *a = pIter->pLeaf->p; - int n = pIter->pLeaf->szLeaf; - + fts5SegIterNextPage(p, pIter); + if( pIter->pLeaf==0 ) break; iOff = fts5LeafFirstRowidOff(pIter->pLeaf); - if( iOff<4 || iOff>=n ){ - p->rc = FTS5_CORRUPT; - }else{ - iOff += fts5GetVarint(&a[iOff], (u64*)&pIter->iRowid); - pIter->iLeafOffset = iOff; - fts5SegIterLoadNPos(p, pIter); + if( iOff>0 ){ + u8 *a = pIter->pLeaf->p; + int n = pIter->pLeaf->szLeaf; + if( iOff<4 || iOff>=n ){ + p->rc = FTS5_CORRUPT; + }else{ + iOff += fts5GetVarint(&a[iOff], (u64*)&pIter->iRowid); + pIter->iLeafOffset = iOff; + fts5SegIterLoadNPos(p, pIter); + } + break; } } } @@ -227710,7 +241676,6 @@ static void fts5SegIterNextFrom( }while( p->rc==SQLITE_OK ); } - /* ** Free the iterator object passed as the second argument. */ @@ -227803,6 +241768,85 @@ static void fts5MultiIterSetEof(Fts5Iter *pIter){ } /* +** The argument to this macro must be an Fts5Data structure containing a +** tombstone hash page. This macro returns the key-size of the hash-page. +*/ +#define TOMBSTONE_KEYSIZE(pPg) (pPg->p[0]==4 ? 4 : 8) + +#define TOMBSTONE_NSLOT(pPg) \ + ((pPg->nn > 16) ? ((pPg->nn-8) / TOMBSTONE_KEYSIZE(pPg)) : 1) + +/* +** Query a single tombstone hash table for rowid iRowid. Return true if +** it is found or false otherwise. The tombstone hash table is one of +** nHashTable tables. +*/ +static int fts5IndexTombstoneQuery( + Fts5Data *pHash, /* Hash table page to query */ + int nHashTable, /* Number of pages attached to segment */ + u64 iRowid /* Rowid to query hash for */ +){ + const int szKey = TOMBSTONE_KEYSIZE(pHash); + const int nSlot = TOMBSTONE_NSLOT(pHash); + int iSlot = (iRowid / nHashTable) % nSlot; + int nCollide = nSlot; + + if( iRowid==0 ){ + return pHash->p[1]; + }else if( szKey==4 ){ + u32 *aSlot = (u32*)&pHash->p[8]; + while( aSlot[iSlot] ){ + if( fts5GetU32((u8*)&aSlot[iSlot])==iRowid ) return 1; + if( nCollide--==0 ) break; + iSlot = (iSlot+1)%nSlot; + } + }else{ + u64 *aSlot = (u64*)&pHash->p[8]; + while( aSlot[iSlot] ){ + if( fts5GetU64((u8*)&aSlot[iSlot])==iRowid ) return 1; + if( nCollide--==0 ) break; + iSlot = (iSlot+1)%nSlot; + } + } + + return 0; +} + +/* +** Return true if the iterator passed as the only argument points +** to an segment entry for which there is a tombstone. Return false +** if there is no tombstone or if the iterator is already at EOF. +*/ +static int fts5MultiIterIsDeleted(Fts5Iter *pIter){ + int iFirst = pIter->aFirst[1].iFirst; + Fts5SegIter *pSeg = &pIter->aSeg[iFirst]; + Fts5TombstoneArray *pArray = pSeg->pTombArray; + + if( pSeg->pLeaf && pArray ){ + /* Figure out which page the rowid might be present on. */ + int iPg = ((u64)pSeg->iRowid) % pArray->nTombstone; + assert( iPg>=0 ); + + /* If tombstone hash page iPg has not yet been loaded from the + ** database, load it now. */ + if( pArray->apTombstone[iPg]==0 ){ + pArray->apTombstone[iPg] = fts5DataRead(pIter->pIndex, + FTS5_TOMBSTONE_ROWID(pSeg->pSeg->iSegid, iPg) + ); + if( pArray->apTombstone[iPg]==0 ) return 0; + } + + return fts5IndexTombstoneQuery( + pArray->apTombstone[iPg], + pArray->nTombstone, + pSeg->iRowid + ); + } + + return 0; +} + +/* ** Move the iterator to the next entry. ** ** If an error occurs, an error code is left in Fts5Index.rc. It is not @@ -227839,7 +241883,9 @@ static void fts5MultiIterNext( fts5AssertMultiIterSetup(p, pIter); assert( pSeg==&pIter->aSeg[pIter->aFirst[1].iFirst] && pSeg->pLeaf ); - if( pIter->bSkipEmpty==0 || pSeg->nPos ){ + if( (pIter->bSkipEmpty==0 || pSeg->nPos) + && 0==fts5MultiIterIsDeleted(pIter) + ){ pIter->xSetOutputs(pIter, pSeg); return; } @@ -227871,7 +241917,9 @@ static void fts5MultiIterNext2( } fts5AssertMultiIterSetup(p, pIter); - }while( fts5MultiIterIsEmpty(p, pIter) ); + }while( (fts5MultiIterIsEmpty(p, pIter) || fts5MultiIterIsDeleted(pIter)) + && (p->rc==SQLITE_OK) + ); } } @@ -227884,7 +241932,7 @@ static Fts5Iter *fts5MultiIterAlloc( int nSeg ){ Fts5Iter *pNew; - int nSlot; /* Power of two >= nSeg */ + i64 nSlot; /* Power of two >= nSeg */ for(nSlot=2; nSlot<nSeg; nSlot=nSlot*2); pNew = fts5IdxMalloc(p, @@ -228329,6 +242377,32 @@ static void fts5IterSetOutputCb(int *pRc, Fts5Iter *pIter){ } } +/* +** All the component segment-iterators of pIter have been set up. This +** functions finishes setup for iterator pIter itself. +*/ +static void fts5MultiIterFinishSetup(Fts5Index *p, Fts5Iter *pIter){ + int iIter; + for(iIter=pIter->nSeg-1; iIter>0; iIter--){ + int iEq; + if( (iEq = fts5MultiIterDoCompare(pIter, iIter)) ){ + Fts5SegIter *pSeg = &pIter->aSeg[iEq]; + if( p->rc==SQLITE_OK ) pSeg->xNext(p, pSeg, 0); + fts5MultiIterAdvanced(p, pIter, iEq, iIter); + } + } + fts5MultiIterSetEof(pIter); + fts5AssertMultiIterSetup(p, pIter); + + if( (pIter->bSkipEmpty && fts5MultiIterIsEmpty(p, pIter)) + || fts5MultiIterIsDeleted(pIter) + ){ + fts5MultiIterNext(p, pIter, 0, 0); + }else if( pIter->base.bEof==0 ){ + Fts5SegIter *pSeg = &pIter->aSeg[pIter->aFirst[1].iFirst]; + pIter->xSetOutputs(pIter, pSeg); + } +} /* ** Allocate a new Fts5Iter object. @@ -228364,7 +242438,7 @@ static void fts5MultiIterNew( if( iLevel<0 ){ assert( pStruct->nSegment==fts5StructureCountSegments(pStruct) ); nSeg = pStruct->nSegment; - nSeg += (p->pHash ? 1 : 0); + nSeg += (p->pHash && 0==(flags & FTS5INDEX_QUERY_SKIPHASH)); }else{ nSeg = MIN(pStruct->aLevel[iLevel].nSeg, nSegment); } @@ -228385,7 +242459,7 @@ static void fts5MultiIterNew( if( p->rc==SQLITE_OK ){ if( iLevel<0 ){ Fts5StructureLevel *pEnd = &pStruct->aLevel[pStruct->nLevel]; - if( p->pHash ){ + if( p->pHash && 0==(flags & FTS5INDEX_QUERY_SKIPHASH) ){ /* Add a segment iterator for the current contents of the hash table. */ Fts5SegIter *pIter = &pNew->aSeg[iIter++]; fts5SegIterHashInit(p, pTerm, nTerm, flags, pIter); @@ -228410,29 +242484,12 @@ static void fts5MultiIterNew( assert( iIter==nSeg ); } - /* If the above was successful, each component iterators now points + /* If the above was successful, each component iterator now points ** to the first entry in its segment. In this case initialize the ** aFirst[] array. Or, if an error has occurred, free the iterator ** object and set the output variable to NULL. */ if( p->rc==SQLITE_OK ){ - for(iIter=pNew->nSeg-1; iIter>0; iIter--){ - int iEq; - if( (iEq = fts5MultiIterDoCompare(pNew, iIter)) ){ - Fts5SegIter *pSeg = &pNew->aSeg[iEq]; - if( p->rc==SQLITE_OK ) pSeg->xNext(p, pSeg, 0); - fts5MultiIterAdvanced(p, pNew, iEq, iIter); - } - } - fts5MultiIterSetEof(pNew); - fts5AssertMultiIterSetup(p, pNew); - - if( pNew->bSkipEmpty && fts5MultiIterIsEmpty(p, pNew) ){ - fts5MultiIterNext(p, pNew, 0, 0); - }else if( pNew->base.bEof==0 ){ - Fts5SegIter *pSeg = &pNew->aSeg[pNew->aFirst[1].iFirst]; - pNew->xSetOutputs(pNew, pSeg); - } - + fts5MultiIterFinishSetup(p, pNew); }else{ fts5MultiIterFree(pNew); *ppOut = 0; @@ -228457,7 +242514,6 @@ static void fts5MultiIterNew2( pNew = fts5MultiIterAlloc(p, 2); if( pNew ){ Fts5SegIter *pIter = &pNew->aSeg[1]; - pIter->flags = FTS5_SEGITER_ONETERM; if( pData->szLeaf>0 ){ pIter->pLeaf = pData; @@ -228604,7 +242660,10 @@ static void fts5IndexDiscardData(Fts5Index *p){ if( p->pHash ){ sqlite3Fts5HashClear(p->pHash); p->nPendingData = 0; + p->nPendingRow = 0; + p->flushRc = SQLITE_OK; } + p->nContentlessDelete = 0; } /* @@ -228818,7 +242877,7 @@ static void fts5WriteDlidxAppend( } if( pDlidx->bPrevValid ){ - iVal = iRowid - pDlidx->iPrev; + iVal = (u64)iRowid - (u64)pDlidx->iPrev; }else{ i64 iPgno = (i==0 ? pWriter->writer.pgno : pDlidx[-1].pgno); assert( pDlidx->buf.n==0 ); @@ -228985,7 +243044,9 @@ static void fts5WriteAppendRowid( fts5BufferAppendVarint(&p->rc, &pPage->buf, iRowid); }else{ assert_nc( p->rc || iRowid>pWriter->iPrevRowid ); - fts5BufferAppendVarint(&p->rc, &pPage->buf, iRowid - pWriter->iPrevRowid); + fts5BufferAppendVarint(&p->rc, &pPage->buf, + (u64)iRowid - (u64)pWriter->iPrevRowid + ); } pWriter->iPrevRowid = iRowid; pWriter->bFirstRowidInDoclist = 0; @@ -229003,7 +243064,7 @@ static void fts5WriteAppendPoslistData( const u8 *a = aData; int n = nData; - assert( p->pConfig->pgsz>0 ); + assert( p->pConfig->pgsz>0 || p->rc!=SQLITE_OK ); while( p->rc==SQLITE_OK && (pPage->buf.n + pPage->pgidx.n + n)>=p->pConfig->pgsz ){ @@ -229138,7 +243199,7 @@ static void fts5TrimSegments(Fts5Index *p, Fts5Iter *pIter){ fts5BufferAppendBlob(&p->rc, &buf, sizeof(aHdr), aHdr); fts5BufferAppendVarint(&p->rc, &buf, pSeg->term.n); fts5BufferAppendBlob(&p->rc, &buf, pSeg->term.n, pSeg->term.p); - fts5BufferAppendBlob(&p->rc, &buf, pData->szLeaf-iOff,&pData->p[iOff]); + fts5BufferAppendBlob(&p->rc, &buf,pData->szLeaf-iOff,&pData->p[iOff]); if( p->rc==SQLITE_OK ){ /* Set the szLeaf field */ fts5PutU16(&buf.p[2], (u16)buf.n); @@ -229239,6 +243300,12 @@ static void fts5IndexMergeLevel( /* Read input from all segments in the input level */ nInput = pLvl->nSeg; + + /* Set the range of origins that will go into the output segment. */ + if( pStruct->nOriginCntr>0 ){ + pSeg->iOrigin1 = pLvl->aSeg[0].iOrigin1; + pSeg->iOrigin2 = pLvl->aSeg[pLvl->nSeg-1].iOrigin2; + } } bOldest = (pLvlOut->nSeg==1 && pStruct->nLevel==iLvl+2); @@ -229298,8 +243365,11 @@ static void fts5IndexMergeLevel( int i; /* Remove the redundant segments from the %_data table */ + assert( pSeg->nEntry==0 ); for(i=0; i<nInput; i++){ - fts5DataRemoveSegment(p, pLvl->aSeg[i].iSegid); + Fts5StructureSegment *pOld = &pLvl->aSeg[i]; + pSeg->nEntry += (pOld->nEntry - pOld->nEntryTombstone); + fts5DataRemoveSegment(p, pOld); } /* Remove the redundant segments from the input level */ @@ -229326,6 +243396,43 @@ static void fts5IndexMergeLevel( } /* +** If this is not a contentless_delete=1 table, or if the 'deletemerge' +** configuration option is set to 0, then this function always returns -1. +** Otherwise, it searches the structure object passed as the second argument +** for a level suitable for merging due to having a large number of +** tombstones in the tombstone hash. If one is found, its index is returned. +** Otherwise, if there is no suitable level, -1. +*/ +static int fts5IndexFindDeleteMerge(Fts5Index *p, Fts5Structure *pStruct){ + Fts5Config *pConfig = p->pConfig; + int iRet = -1; + if( pConfig->bContentlessDelete && pConfig->nDeleteMerge>0 ){ + int ii; + int nBest = 0; + + for(ii=0; ii<pStruct->nLevel; ii++){ + Fts5StructureLevel *pLvl = &pStruct->aLevel[ii]; + i64 nEntry = 0; + i64 nTomb = 0; + int iSeg; + for(iSeg=0; iSeg<pLvl->nSeg; iSeg++){ + nEntry += pLvl->aSeg[iSeg].nEntry; + nTomb += pLvl->aSeg[iSeg].nEntryTombstone; + } + assert_nc( nEntry>0 || pLvl->nSeg==0 ); + if( nEntry>0 ){ + int nPercent = (nTomb * 100) / nEntry; + if( nPercent>=pConfig->nDeleteMerge && nPercent>nBest ){ + iRet = ii; + nBest = nPercent; + } + } + } + } + return iRet; +} + +/* ** Do up to nPg pages of automerge work on the index. ** ** Return true if any changes were actually made, or false otherwise. @@ -229344,14 +243451,15 @@ static int fts5IndexMerge( int iBestLvl = 0; /* Level offering the most input segments */ int nBest = 0; /* Number of input segments on best level */ - /* Set iBestLvl to the level to read input segments from. */ + /* Set iBestLvl to the level to read input segments from. Or to -1 if + ** there is no level suitable to merge segments from. */ assert( pStruct->nLevel>0 ); for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){ Fts5StructureLevel *pLvl = &pStruct->aLevel[iLvl]; if( pLvl->nMerge ){ if( pLvl->nMerge>nBest ){ iBestLvl = iLvl; - nBest = pLvl->nMerge; + nBest = nMin; } break; } @@ -229360,22 +243468,18 @@ static int fts5IndexMerge( iBestLvl = iLvl; } } - - /* If nBest is still 0, then the index must be empty. */ -#ifdef SQLITE_DEBUG - for(iLvl=0; nBest==0 && iLvl<pStruct->nLevel; iLvl++){ - assert( pStruct->aLevel[iLvl].nSeg==0 ); + if( nBest<nMin ){ + iBestLvl = fts5IndexFindDeleteMerge(p, pStruct); } -#endif - if( nBest<nMin && pStruct->aLevel[iBestLvl].nMerge==0 ){ - break; - } + if( iBestLvl<0 ) break; bRet = 1; fts5IndexMergeLevel(p, &pStruct, iBestLvl, &nRem); if( p->rc==SQLITE_OK && pStruct->aLevel[iBestLvl].nMerge==0 ){ fts5StructurePromote(p, iBestLvl+1, pStruct); } + + if( nMin==1 ) nMin = 2; } *ppStruct = pStruct; return bRet; @@ -229416,16 +243520,16 @@ static void fts5IndexCrisismerge( ){ const int nCrisis = p->pConfig->nCrisisMerge; Fts5Structure *pStruct = *ppStruct; - int iLvl = 0; - - assert( p->rc!=SQLITE_OK || pStruct->nLevel>0 ); - while( p->rc==SQLITE_OK && pStruct->aLevel[iLvl].nSeg>=nCrisis ){ - fts5IndexMergeLevel(p, &pStruct, iLvl, 0); - assert( p->rc!=SQLITE_OK || pStruct->nLevel>(iLvl+1) ); - fts5StructurePromote(p, iLvl+1, pStruct); - iLvl++; + if( pStruct && pStruct->nLevel>0 ){ + int iLvl = 0; + while( p->rc==SQLITE_OK && pStruct->aLevel[iLvl].nSeg>=nCrisis ){ + fts5IndexMergeLevel(p, &pStruct, iLvl, 0); + assert( p->rc!=SQLITE_OK || pStruct->nLevel>(iLvl+1) ); + fts5StructurePromote(p, iLvl+1, pStruct); + iLvl++; + } + *ppStruct = pStruct; } - *ppStruct = pStruct; } static int fts5IndexReturn(Fts5Index *p){ @@ -229460,6 +243564,469 @@ static int fts5PoslistPrefix(const u8 *aBuf, int nMax){ } /* +** Execute the SQL statement: +** +** DELETE FROM %_idx WHERE (segid, (pgno/2)) = ($iSegid, $iPgno); +** +** This is used when a secure-delete operation removes the last term +** from a segment leaf page. In that case the %_idx entry is removed +** too. This is done to ensure that if all instances of a token are +** removed from an fts5 database in secure-delete mode, no trace of +** the token itself remains in the database. +*/ +static void fts5SecureDeleteIdxEntry( + Fts5Index *p, /* FTS5 backend object */ + int iSegid, /* Id of segment to delete entry for */ + int iPgno /* Page number within segment */ +){ + if( iPgno!=1 ){ + assert( p->pConfig->iVersion==FTS5_CURRENT_VERSION_SECUREDELETE ); + if( p->pDeleteFromIdx==0 ){ + fts5IndexPrepareStmt(p, &p->pDeleteFromIdx, sqlite3_mprintf( + "DELETE FROM '%q'.'%q_idx' WHERE (segid, (pgno/2)) = (?1, ?2)", + p->pConfig->zDb, p->pConfig->zName + )); + } + if( p->rc==SQLITE_OK ){ + sqlite3_bind_int(p->pDeleteFromIdx, 1, iSegid); + sqlite3_bind_int(p->pDeleteFromIdx, 2, iPgno); + sqlite3_step(p->pDeleteFromIdx); + p->rc = sqlite3_reset(p->pDeleteFromIdx); + } + } +} + +/* +** This is called when a secure-delete operation removes a position-list +** that overflows onto segment page iPgno of segment pSeg. This function +** rewrites node iPgno, and possibly one or more of its right-hand peers, +** to remove this portion of the position list. +** +** Output variable (*pbLastInDoclist) is set to true if the position-list +** removed is followed by a new term or the end-of-segment, or false if +** it is followed by another rowid/position list. +*/ +static void fts5SecureDeleteOverflow( + Fts5Index *p, + Fts5StructureSegment *pSeg, + int iPgno, + int *pbLastInDoclist +){ + const int bDetailNone = (p->pConfig->eDetail==FTS5_DETAIL_NONE); + int pgno; + Fts5Data *pLeaf = 0; + assert( iPgno!=1 ); + + *pbLastInDoclist = 1; + for(pgno=iPgno; p->rc==SQLITE_OK && pgno<=pSeg->pgnoLast; pgno++){ + i64 iRowid = FTS5_SEGMENT_ROWID(pSeg->iSegid, pgno); + int iNext = 0; + u8 *aPg = 0; + + pLeaf = fts5DataRead(p, iRowid); + if( pLeaf==0 ) break; + aPg = pLeaf->p; + + iNext = fts5GetU16(&aPg[0]); + if( iNext!=0 ){ + *pbLastInDoclist = 0; + } + if( iNext==0 && pLeaf->szLeaf!=pLeaf->nn ){ + fts5GetVarint32(&aPg[pLeaf->szLeaf], iNext); + } + + if( iNext==0 ){ + /* The page contains no terms or rowids. Replace it with an empty + ** page and move on to the right-hand peer. */ + const u8 aEmpty[] = {0x00, 0x00, 0x00, 0x04}; + assert_nc( bDetailNone==0 || pLeaf->nn==4 ); + if( bDetailNone==0 ) fts5DataWrite(p, iRowid, aEmpty, sizeof(aEmpty)); + fts5DataRelease(pLeaf); + pLeaf = 0; + }else if( bDetailNone ){ + break; + }else if( iNext>=pLeaf->szLeaf || pLeaf->nn<pLeaf->szLeaf || iNext<4 ){ + p->rc = FTS5_CORRUPT; + break; + }else{ + int nShift = iNext - 4; + int nPg; + + int nIdx = 0; + u8 *aIdx = 0; + + /* Unless the current page footer is 0 bytes in size (in which case + ** the new page footer will be as well), allocate and populate a + ** buffer containing the new page footer. Set stack variables aIdx + ** and nIdx accordingly. */ + if( pLeaf->nn>pLeaf->szLeaf ){ + int iFirst = 0; + int i1 = pLeaf->szLeaf; + int i2 = 0; + + i1 += fts5GetVarint32(&aPg[i1], iFirst); + if( iFirst<iNext ){ + p->rc = FTS5_CORRUPT; + break; + } + aIdx = sqlite3Fts5MallocZero(&p->rc, (pLeaf->nn-pLeaf->szLeaf)+2); + if( aIdx==0 ) break; + i2 = sqlite3Fts5PutVarint(aIdx, iFirst-nShift); + if( i1<pLeaf->nn ){ + memcpy(&aIdx[i2], &aPg[i1], pLeaf->nn-i1); + i2 += (pLeaf->nn-i1); + } + nIdx = i2; + } + + /* Modify the contents of buffer aPg[]. Set nPg to the new size + ** in bytes. The new page is always smaller than the old. */ + nPg = pLeaf->szLeaf - nShift; + memmove(&aPg[4], &aPg[4+nShift], nPg-4); + fts5PutU16(&aPg[2], nPg); + if( fts5GetU16(&aPg[0]) ) fts5PutU16(&aPg[0], 4); + if( nIdx>0 ){ + memcpy(&aPg[nPg], aIdx, nIdx); + nPg += nIdx; + } + sqlite3_free(aIdx); + + /* Write the new page to disk and exit the loop */ + assert( nPg>4 || fts5GetU16(aPg)==0 ); + fts5DataWrite(p, iRowid, aPg, nPg); + break; + } + } + fts5DataRelease(pLeaf); +} + +/* +** Completely remove the entry that pSeg currently points to from +** the database. +*/ +static void fts5DoSecureDelete( + Fts5Index *p, + Fts5SegIter *pSeg +){ + const int bDetailNone = (p->pConfig->eDetail==FTS5_DETAIL_NONE); + int iSegid = pSeg->pSeg->iSegid; + u8 *aPg = pSeg->pLeaf->p; + int nPg = pSeg->pLeaf->nn; + int iPgIdx = pSeg->pLeaf->szLeaf; + + u64 iDelta = 0; + int iNextOff = 0; + int iOff = 0; + int nIdx = 0; + u8 *aIdx = 0; + int bLastInDoclist = 0; + int iIdx = 0; + int iStart = 0; + int iDelKeyOff = 0; /* Offset of deleted key, if any */ + + nIdx = nPg-iPgIdx; + aIdx = sqlite3Fts5MallocZero(&p->rc, nIdx+16); + if( p->rc ) return; + memcpy(aIdx, &aPg[iPgIdx], nIdx); + + /* At this point segment iterator pSeg points to the entry + ** this function should remove from the b-tree segment. + ** + ** In detail=full or detail=column mode, pSeg->iLeafOffset is the + ** offset of the first byte in the position-list for the entry to + ** remove. Immediately before this comes two varints that will also + ** need to be removed: + ** + ** + the rowid or delta rowid value for the entry, and + ** + the size of the position list in bytes. + ** + ** Or, in detail=none mode, there is a single varint prior to + ** pSeg->iLeafOffset - the rowid or delta rowid value. + ** + ** This block sets the following variables: + ** + ** iStart: + ** The offset of the first byte of the rowid or delta-rowid + ** value for the doclist entry being removed. + ** + ** iDelta: + ** The value of the rowid or delta-rowid value for the doclist + ** entry being removed. + ** + ** iNextOff: + ** The offset of the next entry following the position list + ** for the one being removed. If the position list for this + ** entry overflows onto the next leaf page, this value will be + ** greater than pLeaf->szLeaf. + */ + { + int iSOP; /* Start-Of-Position-list */ + if( pSeg->iLeafPgno==pSeg->iTermLeafPgno ){ + iStart = pSeg->iTermLeafOffset; + }else{ + iStart = fts5GetU16(&aPg[0]); + } + + iSOP = iStart + fts5GetVarint(&aPg[iStart], &iDelta); + assert_nc( iSOP<=pSeg->iLeafOffset ); + + if( bDetailNone ){ + while( iSOP<pSeg->iLeafOffset ){ + if( aPg[iSOP]==0x00 ) iSOP++; + if( aPg[iSOP]==0x00 ) iSOP++; + iStart = iSOP; + iSOP = iStart + fts5GetVarint(&aPg[iStart], &iDelta); + } + + iNextOff = iSOP; + if( iNextOff<pSeg->iEndofDoclist && aPg[iNextOff]==0x00 ) iNextOff++; + if( iNextOff<pSeg->iEndofDoclist && aPg[iNextOff]==0x00 ) iNextOff++; + + }else{ + int nPos = 0; + iSOP += fts5GetVarint32(&aPg[iSOP], nPos); + while( iSOP<pSeg->iLeafOffset ){ + iStart = iSOP + (nPos/2); + iSOP = iStart + fts5GetVarint(&aPg[iStart], &iDelta); + iSOP += fts5GetVarint32(&aPg[iSOP], nPos); + } + assert_nc( iSOP==pSeg->iLeafOffset ); + iNextOff = pSeg->iLeafOffset + pSeg->nPos; + } + } + + iOff = iStart; + + /* If the position-list for the entry being removed flows over past + ** the end of this page, delete the portion of the position-list on the + ** next page and beyond. + ** + ** Set variable bLastInDoclist to true if this entry happens + ** to be the last rowid in the doclist for its term. */ + if( iNextOff>=iPgIdx ){ + int pgno = pSeg->iLeafPgno+1; + fts5SecureDeleteOverflow(p, pSeg->pSeg, pgno, &bLastInDoclist); + iNextOff = iPgIdx; + } + + if( pSeg->bDel==0 ){ + if( iNextOff!=iPgIdx ){ + /* Loop through the page-footer. If iNextOff (offset of the + ** entry following the one we are removing) is equal to the + ** offset of a key on this page, then the entry is the last + ** in its doclist. */ + int iKeyOff = 0; + for(iIdx=0; iIdx<nIdx; /* no-op */){ + u32 iVal = 0; + iIdx += fts5GetVarint32(&aIdx[iIdx], iVal); + iKeyOff += iVal; + if( iKeyOff==iNextOff ){ + bLastInDoclist = 1; + } + } + } + + /* If this is (a) the first rowid on a page and (b) is not followed by + ** another position list on the same page, set the "first-rowid" field + ** of the header to 0. */ + if( fts5GetU16(&aPg[0])==iStart && (bLastInDoclist || iNextOff==iPgIdx) ){ + fts5PutU16(&aPg[0], 0); + } + } + + if( pSeg->bDel ){ + iOff += sqlite3Fts5PutVarint(&aPg[iOff], iDelta); + aPg[iOff++] = 0x01; + }else if( bLastInDoclist==0 ){ + if( iNextOff!=iPgIdx ){ + u64 iNextDelta = 0; + iNextOff += fts5GetVarint(&aPg[iNextOff], &iNextDelta); + iOff += sqlite3Fts5PutVarint(&aPg[iOff], iDelta + iNextDelta); + } + }else if( + pSeg->iLeafPgno==pSeg->iTermLeafPgno + && iStart==pSeg->iTermLeafOffset + ){ + /* The entry being removed was the only position list in its + ** doclist. Therefore the term needs to be removed as well. */ + int iKey = 0; + int iKeyOff = 0; + + /* Set iKeyOff to the offset of the term that will be removed - the + ** last offset in the footer that is not greater than iStart. */ + for(iIdx=0; iIdx<nIdx; iKey++){ + u32 iVal = 0; + iIdx += fts5GetVarint32(&aIdx[iIdx], iVal); + if( (iKeyOff+iVal)>(u32)iStart ) break; + iKeyOff += iVal; + } + assert_nc( iKey>=1 ); + + /* Set iDelKeyOff to the value of the footer entry to remove from + ** the page. */ + iDelKeyOff = iOff = iKeyOff; + + if( iNextOff!=iPgIdx ){ + /* This is the only position-list associated with the term, and there + ** is another term following it on this page. So the subsequent term + ** needs to be moved to replace the term associated with the entry + ** being removed. */ + int nPrefix = 0; + int nSuffix = 0; + int nPrefix2 = 0; + int nSuffix2 = 0; + + iDelKeyOff = iNextOff; + iNextOff += fts5GetVarint32(&aPg[iNextOff], nPrefix2); + iNextOff += fts5GetVarint32(&aPg[iNextOff], nSuffix2); + + if( iKey!=1 ){ + iKeyOff += fts5GetVarint32(&aPg[iKeyOff], nPrefix); + } + iKeyOff += fts5GetVarint32(&aPg[iKeyOff], nSuffix); + + nPrefix = MIN(nPrefix, nPrefix2); + nSuffix = (nPrefix2 + nSuffix2) - nPrefix; + + if( (iKeyOff+nSuffix)>iPgIdx || (iNextOff+nSuffix2)>iPgIdx ){ + p->rc = FTS5_CORRUPT; + }else{ + if( iKey!=1 ){ + iOff += sqlite3Fts5PutVarint(&aPg[iOff], nPrefix); + } + iOff += sqlite3Fts5PutVarint(&aPg[iOff], nSuffix); + if( nPrefix2>pSeg->term.n ){ + p->rc = FTS5_CORRUPT; + }else if( nPrefix2>nPrefix ){ + memcpy(&aPg[iOff], &pSeg->term.p[nPrefix], nPrefix2-nPrefix); + iOff += (nPrefix2-nPrefix); + } + memmove(&aPg[iOff], &aPg[iNextOff], nSuffix2); + iOff += nSuffix2; + iNextOff += nSuffix2; + } + } + }else if( iStart==4 ){ + int iPgno; + + assert_nc( pSeg->iLeafPgno>pSeg->iTermLeafPgno ); + /* The entry being removed may be the only position list in + ** its doclist. */ + for(iPgno=pSeg->iLeafPgno-1; iPgno>pSeg->iTermLeafPgno; iPgno-- ){ + Fts5Data *pPg = fts5DataRead(p, FTS5_SEGMENT_ROWID(iSegid, iPgno)); + int bEmpty = (pPg && pPg->nn==4); + fts5DataRelease(pPg); + if( bEmpty==0 ) break; + } + + if( iPgno==pSeg->iTermLeafPgno ){ + i64 iId = FTS5_SEGMENT_ROWID(iSegid, pSeg->iTermLeafPgno); + Fts5Data *pTerm = fts5DataRead(p, iId); + if( pTerm && pTerm->szLeaf==pSeg->iTermLeafOffset ){ + u8 *aTermIdx = &pTerm->p[pTerm->szLeaf]; + int nTermIdx = pTerm->nn - pTerm->szLeaf; + int iTermIdx = 0; + int iTermOff = 0; + + while( 1 ){ + u32 iVal = 0; + int nByte = fts5GetVarint32(&aTermIdx[iTermIdx], iVal); + iTermOff += iVal; + if( (iTermIdx+nByte)>=nTermIdx ) break; + iTermIdx += nByte; + } + nTermIdx = iTermIdx; + + memmove(&pTerm->p[iTermOff], &pTerm->p[pTerm->szLeaf], nTermIdx); + fts5PutU16(&pTerm->p[2], iTermOff); + + fts5DataWrite(p, iId, pTerm->p, iTermOff+nTermIdx); + if( nTermIdx==0 ){ + fts5SecureDeleteIdxEntry(p, iSegid, pSeg->iTermLeafPgno); + } + } + fts5DataRelease(pTerm); + } + } + + /* Assuming no error has occurred, this block does final edits to the + ** leaf page before writing it back to disk. Input variables are: + ** + ** nPg: Total initial size of leaf page. + ** iPgIdx: Initial offset of page footer. + ** + ** iOff: Offset to move data to + ** iNextOff: Offset to move data from + */ + if( p->rc==SQLITE_OK ){ + const int nMove = nPg - iNextOff; /* Number of bytes to move */ + int nShift = iNextOff - iOff; /* Distance to move them */ + + int iPrevKeyOut = 0; + int iKeyIn = 0; + + memmove(&aPg[iOff], &aPg[iNextOff], nMove); + iPgIdx -= nShift; + nPg = iPgIdx; + fts5PutU16(&aPg[2], iPgIdx); + + for(iIdx=0; iIdx<nIdx; /* no-op */){ + u32 iVal = 0; + iIdx += fts5GetVarint32(&aIdx[iIdx], iVal); + iKeyIn += iVal; + if( iKeyIn!=iDelKeyOff ){ + int iKeyOut = (iKeyIn - (iKeyIn>iOff ? nShift : 0)); + nPg += sqlite3Fts5PutVarint(&aPg[nPg], iKeyOut - iPrevKeyOut); + iPrevKeyOut = iKeyOut; + } + } + + if( iPgIdx==nPg && nIdx>0 && pSeg->iLeafPgno!=1 ){ + fts5SecureDeleteIdxEntry(p, iSegid, pSeg->iLeafPgno); + } + + assert_nc( nPg>4 || fts5GetU16(aPg)==0 ); + fts5DataWrite(p, FTS5_SEGMENT_ROWID(iSegid,pSeg->iLeafPgno), aPg, nPg); + } + sqlite3_free(aIdx); +} + +/* +** This is called as part of flushing a delete to disk in 'secure-delete' +** mode. It edits the segments within the database described by argument +** pStruct to remove the entries for term zTerm, rowid iRowid. +*/ +static void fts5FlushSecureDelete( + Fts5Index *p, + Fts5Structure *pStruct, + const char *zTerm, + int nTerm, + i64 iRowid +){ + const int f = FTS5INDEX_QUERY_SKIPHASH; + Fts5Iter *pIter = 0; /* Used to find term instance */ + + fts5MultiIterNew(p, pStruct, f, 0, (const u8*)zTerm, nTerm, -1, 0, &pIter); + if( fts5MultiIterEof(p, pIter)==0 ){ + i64 iThis = fts5MultiIterRowid(pIter); + if( iThis<iRowid ){ + fts5MultiIterNextFrom(p, pIter, iRowid); + } + + if( p->rc==SQLITE_OK + && fts5MultiIterEof(p, pIter)==0 + && iRowid==fts5MultiIterRowid(pIter) + ){ + Fts5SegIter *pSeg = &pIter->aSeg[pIter->aFirst[1].iFirst]; + fts5DoSecureDelete(p, pSeg); + } + } + + fts5MultiIterFree(pIter); +} + + +/* ** Flush the contents of in-memory hash table iHash to a new level-0 ** segment on disk. Also update the corresponding structure record. ** @@ -229475,143 +244042,197 @@ static void fts5FlushOneHash(Fts5Index *p){ /* Obtain a reference to the index structure and allocate a new segment-id ** for the new level-0 segment. */ pStruct = fts5StructureRead(p); - iSegid = fts5AllocateSegid(p, pStruct); fts5StructureInvalidate(p); - if( iSegid ){ - const int pgsz = p->pConfig->pgsz; - int eDetail = p->pConfig->eDetail; - Fts5StructureSegment *pSeg; /* New segment within pStruct */ - Fts5Buffer *pBuf; /* Buffer in which to assemble leaf page */ - Fts5Buffer *pPgidx; /* Buffer in which to assemble pgidx */ + if( sqlite3Fts5HashIsEmpty(pHash)==0 ){ + iSegid = fts5AllocateSegid(p, pStruct); + if( iSegid ){ + const int pgsz = p->pConfig->pgsz; + int eDetail = p->pConfig->eDetail; + int bSecureDelete = p->pConfig->bSecureDelete; + Fts5StructureSegment *pSeg; /* New segment within pStruct */ + Fts5Buffer *pBuf; /* Buffer in which to assemble leaf page */ + Fts5Buffer *pPgidx; /* Buffer in which to assemble pgidx */ + + Fts5SegWriter writer; + fts5WriteInit(p, &writer, iSegid); + + pBuf = &writer.writer.buf; + pPgidx = &writer.writer.pgidx; + + /* fts5WriteInit() should have initialized the buffers to (most likely) + ** the maximum space required. */ + assert( p->rc || pBuf->nSpace>=(pgsz + FTS5_DATA_PADDING) ); + assert( p->rc || pPgidx->nSpace>=(pgsz + FTS5_DATA_PADDING) ); + + /* Begin scanning through hash table entries. This loop runs once for each + ** term/doclist currently stored within the hash table. */ + if( p->rc==SQLITE_OK ){ + p->rc = sqlite3Fts5HashScanInit(pHash, 0, 0); + } + while( p->rc==SQLITE_OK && 0==sqlite3Fts5HashScanEof(pHash) ){ + const char *zTerm; /* Buffer containing term */ + int nTerm; /* Size of zTerm in bytes */ + const u8 *pDoclist; /* Pointer to doclist for this term */ + int nDoclist; /* Size of doclist in bytes */ - Fts5SegWriter writer; - fts5WriteInit(p, &writer, iSegid); + /* Get the term and doclist for this entry. */ + sqlite3Fts5HashScanEntry(pHash, &zTerm, &nTerm, &pDoclist, &nDoclist); + if( bSecureDelete==0 ){ + fts5WriteAppendTerm(p, &writer, nTerm, (const u8*)zTerm); + if( p->rc!=SQLITE_OK ) break; + assert( writer.bFirstRowidInPage==0 ); + } - pBuf = &writer.writer.buf; - pPgidx = &writer.writer.pgidx; + if( !bSecureDelete && pgsz>=(pBuf->n + pPgidx->n + nDoclist + 1) ){ + /* The entire doclist will fit on the current leaf. */ + fts5BufferSafeAppendBlob(pBuf, pDoclist, nDoclist); + }else{ + int bTermWritten = !bSecureDelete; + i64 iRowid = 0; + i64 iPrev = 0; + int iOff = 0; + + /* The entire doclist will not fit on this leaf. The following + ** loop iterates through the poslists that make up the current + ** doclist. */ + while( p->rc==SQLITE_OK && iOff<nDoclist ){ + u64 iDelta = 0; + iOff += fts5GetVarint(&pDoclist[iOff], &iDelta); + iRowid += iDelta; + + /* If in secure delete mode, and if this entry in the poslist is + ** in fact a delete, then edit the existing segments directly + ** using fts5FlushSecureDelete(). */ + if( bSecureDelete ){ + if( eDetail==FTS5_DETAIL_NONE ){ + if( iOff<nDoclist && pDoclist[iOff]==0x00 ){ + fts5FlushSecureDelete(p, pStruct, zTerm, nTerm, iRowid); + iOff++; + if( iOff<nDoclist && pDoclist[iOff]==0x00 ){ + iOff++; + nDoclist = 0; + }else{ + continue; + } + } + }else if( (pDoclist[iOff] & 0x01) ){ + fts5FlushSecureDelete(p, pStruct, zTerm, nTerm, iRowid); + if( p->rc!=SQLITE_OK || pDoclist[iOff]==0x01 ){ + iOff++; + continue; + } + } + } - /* fts5WriteInit() should have initialized the buffers to (most likely) - ** the maximum space required. */ - assert( p->rc || pBuf->nSpace>=(pgsz + FTS5_DATA_PADDING) ); - assert( p->rc || pPgidx->nSpace>=(pgsz + FTS5_DATA_PADDING) ); + if( p->rc==SQLITE_OK && bTermWritten==0 ){ + fts5WriteAppendTerm(p, &writer, nTerm, (const u8*)zTerm); + bTermWritten = 1; + assert( p->rc!=SQLITE_OK || writer.bFirstRowidInPage==0 ); + } - /* Begin scanning through hash table entries. This loop runs once for each - ** term/doclist currently stored within the hash table. */ - if( p->rc==SQLITE_OK ){ - p->rc = sqlite3Fts5HashScanInit(pHash, 0, 0); - } - while( p->rc==SQLITE_OK && 0==sqlite3Fts5HashScanEof(pHash) ){ - const char *zTerm; /* Buffer containing term */ - const u8 *pDoclist; /* Pointer to doclist for this term */ - int nDoclist; /* Size of doclist in bytes */ - - /* Write the term for this entry to disk. */ - sqlite3Fts5HashScanEntry(pHash, &zTerm, &pDoclist, &nDoclist); - fts5WriteAppendTerm(p, &writer, (int)strlen(zTerm), (const u8*)zTerm); - if( p->rc!=SQLITE_OK ) break; - - assert( writer.bFirstRowidInPage==0 ); - if( pgsz>=(pBuf->n + pPgidx->n + nDoclist + 1) ){ - /* The entire doclist will fit on the current leaf. */ - fts5BufferSafeAppendBlob(pBuf, pDoclist, nDoclist); - }else{ - i64 iRowid = 0; - u64 iDelta = 0; - int iOff = 0; - - /* The entire doclist will not fit on this leaf. The following - ** loop iterates through the poslists that make up the current - ** doclist. */ - while( p->rc==SQLITE_OK && iOff<nDoclist ){ - iOff += fts5GetVarint(&pDoclist[iOff], &iDelta); - iRowid += iDelta; - - if( writer.bFirstRowidInPage ){ - fts5PutU16(&pBuf->p[0], (u16)pBuf->n); /* first rowid on page */ - pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iRowid); - writer.bFirstRowidInPage = 0; - fts5WriteDlidxAppend(p, &writer, iRowid); + if( writer.bFirstRowidInPage ){ + fts5PutU16(&pBuf->p[0], (u16)pBuf->n); /* first rowid on page */ + pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iRowid); + writer.bFirstRowidInPage = 0; + fts5WriteDlidxAppend(p, &writer, iRowid); + }else{ + u64 iRowidDelta = (u64)iRowid - (u64)iPrev; + pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iRowidDelta); + } if( p->rc!=SQLITE_OK ) break; - }else{ - pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iDelta); - } - assert( pBuf->n<=pBuf->nSpace ); + assert( pBuf->n<=pBuf->nSpace ); + iPrev = iRowid; - if( eDetail==FTS5_DETAIL_NONE ){ - if( iOff<nDoclist && pDoclist[iOff]==0 ){ - pBuf->p[pBuf->n++] = 0; - iOff++; + if( eDetail==FTS5_DETAIL_NONE ){ if( iOff<nDoclist && pDoclist[iOff]==0 ){ pBuf->p[pBuf->n++] = 0; iOff++; + if( iOff<nDoclist && pDoclist[iOff]==0 ){ + pBuf->p[pBuf->n++] = 0; + iOff++; + } + } + if( (pBuf->n + pPgidx->n)>=pgsz ){ + fts5WriteFlushLeaf(p, &writer); } - } - if( (pBuf->n + pPgidx->n)>=pgsz ){ - fts5WriteFlushLeaf(p, &writer); - } - }else{ - int bDummy; - int nPos; - int nCopy = fts5GetPoslistSize(&pDoclist[iOff], &nPos, &bDummy); - nCopy += nPos; - if( (pBuf->n + pPgidx->n + nCopy) <= pgsz ){ - /* The entire poslist will fit on the current leaf. So copy - ** it in one go. */ - fts5BufferSafeAppendBlob(pBuf, &pDoclist[iOff], nCopy); }else{ - /* The entire poslist will not fit on this leaf. So it needs - ** to be broken into sections. The only qualification being - ** that each varint must be stored contiguously. */ - const u8 *pPoslist = &pDoclist[iOff]; - int iPos = 0; - while( p->rc==SQLITE_OK ){ - int nSpace = pgsz - pBuf->n - pPgidx->n; - int n = 0; - if( (nCopy - iPos)<=nSpace ){ - n = nCopy - iPos; - }else{ - n = fts5PoslistPrefix(&pPoslist[iPos], nSpace); - } - assert( n>0 ); - fts5BufferSafeAppendBlob(pBuf, &pPoslist[iPos], n); - iPos += n; - if( (pBuf->n + pPgidx->n)>=pgsz ){ - fts5WriteFlushLeaf(p, &writer); + int bDel = 0; + int nPos = 0; + int nCopy = fts5GetPoslistSize(&pDoclist[iOff], &nPos, &bDel); + if( bDel && bSecureDelete ){ + fts5BufferAppendVarint(&p->rc, pBuf, nPos*2); + iOff += nCopy; + nCopy = nPos; + }else{ + nCopy += nPos; + } + if( (pBuf->n + pPgidx->n + nCopy) <= pgsz ){ + /* The entire poslist will fit on the current leaf. So copy + ** it in one go. */ + fts5BufferSafeAppendBlob(pBuf, &pDoclist[iOff], nCopy); + }else{ + /* The entire poslist will not fit on this leaf. So it needs + ** to be broken into sections. The only qualification being + ** that each varint must be stored contiguously. */ + const u8 *pPoslist = &pDoclist[iOff]; + int iPos = 0; + while( p->rc==SQLITE_OK ){ + int nSpace = pgsz - pBuf->n - pPgidx->n; + int n = 0; + if( (nCopy - iPos)<=nSpace ){ + n = nCopy - iPos; + }else{ + n = fts5PoslistPrefix(&pPoslist[iPos], nSpace); + } + assert( n>0 ); + fts5BufferSafeAppendBlob(pBuf, &pPoslist[iPos], n); + iPos += n; + if( (pBuf->n + pPgidx->n)>=pgsz ){ + fts5WriteFlushLeaf(p, &writer); + } + if( iPos>=nCopy ) break; } - if( iPos>=nCopy ) break; } + iOff += nCopy; } - iOff += nCopy; } } - } - /* TODO2: Doclist terminator written here. */ - /* pBuf->p[pBuf->n++] = '\0'; */ - assert( pBuf->n<=pBuf->nSpace ); - if( p->rc==SQLITE_OK ) sqlite3Fts5HashScanNext(pHash); - } - sqlite3Fts5HashClear(pHash); - fts5WriteFinish(p, &writer, &pgnoLast); + /* TODO2: Doclist terminator written here. */ + /* pBuf->p[pBuf->n++] = '\0'; */ + assert( pBuf->n<=pBuf->nSpace ); + if( p->rc==SQLITE_OK ) sqlite3Fts5HashScanNext(pHash); + } + fts5WriteFinish(p, &writer, &pgnoLast); - /* Update the Fts5Structure. It is written back to the database by the - ** fts5StructureRelease() call below. */ - if( pStruct->nLevel==0 ){ - fts5StructureAddLevel(&p->rc, &pStruct); - } - fts5StructureExtendLevel(&p->rc, pStruct, 0, 1, 0); - if( p->rc==SQLITE_OK ){ - pSeg = &pStruct->aLevel[0].aSeg[ pStruct->aLevel[0].nSeg++ ]; - pSeg->iSegid = iSegid; - pSeg->pgnoFirst = 1; - pSeg->pgnoLast = pgnoLast; - pStruct->nSegment++; + assert( p->rc!=SQLITE_OK || bSecureDelete || pgnoLast>0 ); + if( pgnoLast>0 ){ + /* Update the Fts5Structure. It is written back to the database by the + ** fts5StructureRelease() call below. */ + if( pStruct->nLevel==0 ){ + fts5StructureAddLevel(&p->rc, &pStruct); + } + fts5StructureExtendLevel(&p->rc, pStruct, 0, 1, 0); + if( p->rc==SQLITE_OK ){ + pSeg = &pStruct->aLevel[0].aSeg[ pStruct->aLevel[0].nSeg++ ]; + pSeg->iSegid = iSegid; + pSeg->pgnoFirst = 1; + pSeg->pgnoLast = pgnoLast; + if( pStruct->nOriginCntr>0 ){ + pSeg->iOrigin1 = pStruct->nOriginCntr; + pSeg->iOrigin2 = pStruct->nOriginCntr; + pSeg->nEntry = p->nPendingRow; + pStruct->nOriginCntr++; + } + pStruct->nSegment++; + } + fts5StructurePromote(p, 0, pStruct); + } } - fts5StructurePromote(p, 0, pStruct); } - fts5IndexAutomerge(p, &pStruct, pgnoLast); + fts5IndexAutomerge(p, &pStruct, pgnoLast + p->nContentlessDelete); fts5IndexCrisismerge(p, &pStruct); fts5StructureWrite(p, pStruct); fts5StructureRelease(pStruct); @@ -229622,10 +244243,21 @@ static void fts5FlushOneHash(Fts5Index *p){ */ static void fts5IndexFlush(Fts5Index *p){ /* Unless it is empty, flush the hash table to disk */ - if( p->nPendingData ){ + if( p->flushRc ){ + p->rc = p->flushRc; + return; + } + if( p->nPendingData || p->nContentlessDelete ){ assert( p->pHash ); - p->nPendingData = 0; fts5FlushOneHash(p); + if( p->rc==SQLITE_OK ){ + sqlite3Fts5HashClear(p->pHash); + p->nPendingData = 0; + p->nPendingRow = 0; + p->nContentlessDelete = 0; + }else if( p->nPendingData || p->nContentlessDelete ){ + p->flushRc = p->rc; + } } } @@ -229641,17 +244273,22 @@ static Fts5Structure *fts5IndexOptimizeStruct( /* Figure out if this structure requires optimization. A structure does ** not require optimization if either: ** - ** + it consists of fewer than two segments, or - ** + all segments are on the same level, or - ** + all segments except one are currently inputs to a merge operation. + ** 1. it consists of fewer than two segments, or + ** 2. all segments are on the same level, or + ** 3. all segments except one are currently inputs to a merge operation. ** - ** In the first case, return NULL. In the second, increment the ref-count - ** on *pStruct and return a copy of the pointer to it. + ** In the first case, if there are no tombstone hash pages, return NULL. In + ** the second, increment the ref-count on *pStruct and return a copy of the + ** pointer to it. */ - if( nSeg<2 ) return 0; + if( nSeg==0 ) return 0; for(i=0; i<pStruct->nLevel; i++){ int nThis = pStruct->aLevel[i].nSeg; - if( nThis==nSeg || (nThis==nSeg-1 && pStruct->aLevel[i].nMerge==nThis) ){ + int nMerge = pStruct->aLevel[i].nMerge; + if( nThis>0 && (nThis==nSeg || (nThis==nSeg-1 && nMerge==nThis)) ){ + if( nSeg==1 && nThis==1 && pStruct->aLevel[i].aSeg[0].nPgTombstone==0 ){ + return 0; + } fts5StructureRef(pStruct); return pStruct; } @@ -229664,10 +244301,11 @@ static Fts5Structure *fts5IndexOptimizeStruct( if( pNew ){ Fts5StructureLevel *pLvl; nByte = nSeg * sizeof(Fts5StructureSegment); - pNew->nLevel = pStruct->nLevel+1; + pNew->nLevel = MIN(pStruct->nLevel+1, FTS5_MAX_LEVEL); pNew->nRef = 1; pNew->nWriteCounter = pStruct->nWriteCounter; - pLvl = &pNew->aLevel[pStruct->nLevel]; + pNew->nOriginCntr = pStruct->nOriginCntr; + pLvl = &pNew->aLevel[pNew->nLevel-1]; pLvl->aSeg = (Fts5StructureSegment*)sqlite3Fts5MallocZero(&p->rc, nByte); if( pLvl->aSeg ){ int iLvl, iSeg; @@ -229697,7 +244335,9 @@ static int sqlite3Fts5IndexOptimize(Fts5Index *p){ assert( p->rc==SQLITE_OK ); fts5IndexFlush(p); + assert( p->rc!=SQLITE_OK || p->nContentlessDelete==0 ); pStruct = fts5StructureRead(p); + assert( p->rc!=SQLITE_OK || pStruct!=0 ); fts5StructureInvalidate(p); if( pStruct ){ @@ -229726,7 +244366,10 @@ static int sqlite3Fts5IndexOptimize(Fts5Index *p){ ** INSERT command. */ static int sqlite3Fts5IndexMerge(Fts5Index *p, int nMerge){ - Fts5Structure *pStruct = fts5StructureRead(p); + Fts5Structure *pStruct = 0; + + fts5IndexFlush(p); + pStruct = fts5StructureRead(p); if( pStruct ){ int nMin = p->pConfig->nUsermerge; fts5StructureInvalidate(p); @@ -229734,7 +244377,7 @@ static int sqlite3Fts5IndexMerge(Fts5Index *p, int nMerge){ Fts5Structure *pNew = fts5IndexOptimizeStruct(p, pStruct); fts5StructureRelease(pStruct); pStruct = pNew; - nMin = 2; + nMin = 1; nMerge = nMerge*-1; } if( pStruct && pStruct->nLevel ){ @@ -229749,7 +244392,7 @@ static int sqlite3Fts5IndexMerge(Fts5Index *p, int nMerge){ static void fts5AppendRowid( Fts5Index *p, - i64 iDelta, + u64 iDelta, Fts5Iter *pUnused, Fts5Buffer *pBuf ){ @@ -229759,7 +244402,7 @@ static void fts5AppendRowid( static void fts5AppendPoslist( Fts5Index *p, - i64 iDelta, + u64 iDelta, Fts5Iter *pMulti, Fts5Buffer *pBuf ){ @@ -229834,10 +244477,10 @@ static void fts5MergeAppendDocid( } #endif -#define fts5MergeAppendDocid(pBuf, iLastRowid, iRowid) { \ - assert( (pBuf)->n!=0 || (iLastRowid)==0 ); \ - fts5BufferSafeAppendVarint((pBuf), (iRowid) - (iLastRowid)); \ - (iLastRowid) = (iRowid); \ +#define fts5MergeAppendDocid(pBuf, iLastRowid, iRowid) { \ + assert( (pBuf)->n!=0 || (iLastRowid)==0 ); \ + fts5BufferSafeAppendVarint((pBuf), (u64)(iRowid) - (u64)(iLastRowid)); \ + (iLastRowid) = (iRowid); \ } /* @@ -229969,7 +244612,7 @@ static void fts5MergePrefixLists( /* Initialize a doclist-iterator for each input buffer. Arrange them in ** a linked-list starting at pHead in ascending order of rowid. Avoid ** linking any iterators already at EOF into the linked list at all. */ - assert( nBuf+1<=sizeof(aMerger)/sizeof(aMerger[0]) ); + assert( nBuf+1<=(int)(sizeof(aMerger)/sizeof(aMerger[0])) ); memset(aMerger, 0, sizeof(PrefixMerger)*(nBuf+1)); pHead = &aMerger[nBuf]; fts5DoclistIterInit(p1, &pHead->iter); @@ -230100,7 +244743,7 @@ static void fts5SetupPrefixIter( u8 *pToken, /* Buffer containing prefix to match */ int nToken, /* Size of buffer pToken in bytes */ Fts5Colset *pColset, /* Restrict matches to these columns */ - Fts5Iter **ppIter /* OUT: New iterator */ + Fts5Iter **ppIter /* OUT: New iterator */ ){ Fts5Structure *pStruct; Fts5Buffer *aBuf; @@ -230108,7 +244751,7 @@ static void fts5SetupPrefixIter( int nMerge = 1; void (*xMerge)(Fts5Index*, Fts5Buffer*, int, Fts5Buffer*); - void (*xAppend)(Fts5Index*, i64, Fts5Iter*, Fts5Buffer*); + void (*xAppend)(Fts5Index*, u64, Fts5Iter*, Fts5Buffer*); if( p->pConfig->eDetail==FTS5_DETAIL_NONE ){ xMerge = fts5MergeRowidLists; xAppend = fts5AppendRowid; @@ -230121,8 +244764,9 @@ static void fts5SetupPrefixIter( aBuf = (Fts5Buffer*)fts5IdxMalloc(p, sizeof(Fts5Buffer)*nBuf); pStruct = fts5StructureRead(p); + assert( p->rc!=SQLITE_OK || (aBuf && pStruct) ); - if( aBuf && pStruct ){ + if( p->rc==SQLITE_OK ){ const int flags = FTS5INDEX_QUERY_SCAN | FTS5INDEX_QUERY_SKIPEMPTY | FTS5INDEX_QUERY_NOOUTPUT; @@ -230134,6 +244778,12 @@ static void fts5SetupPrefixIter( int bNewTerm = 1; memset(&doclist, 0, sizeof(doclist)); + + /* If iIdx is non-zero, then it is the number of a prefix-index for + ** prefixes 1 character longer than the prefix being queried for. That + ** index contains all the doclists required, except for the one + ** corresponding to the prefix itself. That one is extracted from the + ** main term index here. */ if( iIdx!=0 ){ int dummy = 0; const int f2 = FTS5INDEX_QUERY_SKIPEMPTY|FTS5INDEX_QUERY_NOOUTPUT; @@ -230147,7 +244797,7 @@ static void fts5SetupPrefixIter( Fts5SegIter *pSeg = &p1->aSeg[ p1->aFirst[1].iFirst ]; p1->xSetOutputs(p1, pSeg); if( p1->base.nData ){ - xAppend(p, p1->base.iRowid-iLastRowid, p1, &doclist); + xAppend(p, (u64)p1->base.iRowid-(u64)iLastRowid, p1, &doclist); iLastRowid = p1->base.iRowid; } } @@ -230157,6 +244807,7 @@ static void fts5SetupPrefixIter( pToken[0] = FTS5_MAIN_PREFIX + iIdx; fts5MultiIterNew(p, pStruct, flags, pColset, pToken, nToken, -1, 0, &p1); fts5IterSetOutputCb(&p->rc, p1); + for( /* no-op */ ; fts5MultiIterEof(p, p1)==0; fts5MultiIterNext2(p, p1, &bNewTerm) @@ -230172,7 +244823,6 @@ static void fts5SetupPrefixIter( } if( p1->base.nData==0 ) continue; - if( p1->base.iRowid<=iLastRowid && doclist.n>0 ){ for(i=0; p->rc==SQLITE_OK && doclist.n; i++){ int i1 = i*nMerge; @@ -230195,7 +244845,7 @@ static void fts5SetupPrefixIter( iLastRowid = 0; } - xAppend(p, p1->base.iRowid-iLastRowid, p1, &doclist); + xAppend(p, (u64)p1->base.iRowid-(u64)iLastRowid, p1, &doclist); iLastRowid = p1->base.iRowid; } @@ -230211,7 +244861,7 @@ static void fts5SetupPrefixIter( } fts5MultiIterFree(p1); - pData = fts5IdxMalloc(p, sizeof(Fts5Data)+doclist.n+FTS5_DATA_ZERO_PADDING); + pData = fts5IdxMalloc(p, sizeof(*pData)+doclist.n+FTS5_DATA_ZERO_PADDING); if( pData ){ pData->p = (u8*)&pData[1]; pData->nn = pData->szLeaf = doclist.n; @@ -230248,6 +244898,9 @@ static int sqlite3Fts5IndexBeginWrite(Fts5Index *p, int bDelete, i64 iRowid){ p->iWriteRowid = iRowid; p->bDelete = bDelete; + if( bDelete==0 ){ + p->nPendingRow++; + } return fts5IndexReturn(p); } @@ -230285,6 +244938,9 @@ static int sqlite3Fts5IndexReinit(Fts5Index *p){ fts5StructureInvalidate(p); fts5IndexDiscardData(p); memset(&s, 0, sizeof(Fts5Structure)); + if( p->pConfig->bContentlessDelete ){ + s.nOriginCntr = 1; + } fts5DataWrite(p, FTS5_AVERAGES_ROWID, (const u8*)"", 0); fts5StructureWrite(p, &s); return fts5IndexReturn(p); @@ -230348,7 +245004,9 @@ static int sqlite3Fts5IndexClose(Fts5Index *p){ sqlite3_finalize(p->pIdxWriter); sqlite3_finalize(p->pIdxDeleter); sqlite3_finalize(p->pIdxSelect); + sqlite3_finalize(p->pIdxNextSelect); sqlite3_finalize(p->pDataVersion); + sqlite3_finalize(p->pDeleteFromIdx); sqlite3Fts5HashFree(p->pHash); sqlite3_free(p->zDataTbl); sqlite3_free(p); @@ -230443,6 +245101,454 @@ static int sqlite3Fts5IndexWrite( } /* +** pToken points to a buffer of size nToken bytes containing a search +** term, including the index number at the start, used on a tokendata=1 +** table. This function returns true if the term in buffer pBuf matches +** token pToken/nToken. +*/ +static int fts5IsTokendataPrefix( + Fts5Buffer *pBuf, + const u8 *pToken, + int nToken +){ + return ( + pBuf->n>=nToken + && 0==memcmp(pBuf->p, pToken, nToken) + && (pBuf->n==nToken || pBuf->p[nToken]==0x00) + ); +} + +/* +** Ensure the segment-iterator passed as the only argument points to EOF. +*/ +static void fts5SegIterSetEOF(Fts5SegIter *pSeg){ + fts5DataRelease(pSeg->pLeaf); + pSeg->pLeaf = 0; +} + +/* +** Usually, a tokendata=1 iterator (struct Fts5TokenDataIter) accumulates an +** array of these for each row it visits. Or, for an iterator used by an +** "ORDER BY rank" query, it accumulates an array of these for the entire +** query. +** +** Each instance in the array indicates the iterator (and therefore term) +** associated with position iPos of rowid iRowid. This is used by the +** xInstToken() API. +*/ +struct Fts5TokenDataMap { + i64 iRowid; /* Row this token is located in */ + i64 iPos; /* Position of token */ + int iIter; /* Iterator token was read from */ +}; + +/* +** An object used to supplement Fts5Iter for tokendata=1 iterators. +*/ +struct Fts5TokenDataIter { + int nIter; + int nIterAlloc; + + int nMap; + int nMapAlloc; + Fts5TokenDataMap *aMap; + + Fts5PoslistReader *aPoslistReader; + int *aPoslistToIter; + Fts5Iter *apIter[1]; +}; + +/* +** This function appends iterator pAppend to Fts5TokenDataIter pIn and +** returns the result. +*/ +static Fts5TokenDataIter *fts5AppendTokendataIter( + Fts5Index *p, /* Index object (for error code) */ + Fts5TokenDataIter *pIn, /* Current Fts5TokenDataIter struct */ + Fts5Iter *pAppend /* Append this iterator */ +){ + Fts5TokenDataIter *pRet = pIn; + + if( p->rc==SQLITE_OK ){ + if( pIn==0 || pIn->nIter==pIn->nIterAlloc ){ + int nAlloc = pIn ? pIn->nIterAlloc*2 : 16; + int nByte = nAlloc * sizeof(Fts5Iter*) + sizeof(Fts5TokenDataIter); + Fts5TokenDataIter *pNew = (Fts5TokenDataIter*)sqlite3_realloc(pIn, nByte); + + if( pNew==0 ){ + p->rc = SQLITE_NOMEM; + }else{ + if( pIn==0 ) memset(pNew, 0, nByte); + pRet = pNew; + pNew->nIterAlloc = nAlloc; + } + } + } + if( p->rc ){ + sqlite3Fts5IterClose((Fts5IndexIter*)pAppend); + }else{ + pRet->apIter[pRet->nIter++] = pAppend; + } + assert( pRet==0 || pRet->nIter<=pRet->nIterAlloc ); + + return pRet; +} + +/* +** Delete an Fts5TokenDataIter structure and its contents. +*/ +static void fts5TokendataIterDelete(Fts5TokenDataIter *pSet){ + if( pSet ){ + int ii; + for(ii=0; ii<pSet->nIter; ii++){ + fts5MultiIterFree(pSet->apIter[ii]); + } + sqlite3_free(pSet->aPoslistReader); + sqlite3_free(pSet->aMap); + sqlite3_free(pSet); + } +} + +/* +** Append a mapping to the token-map belonging to object pT. +*/ +static void fts5TokendataIterAppendMap( + Fts5Index *p, + Fts5TokenDataIter *pT, + int iIter, + i64 iRowid, + i64 iPos +){ + if( p->rc==SQLITE_OK ){ + if( pT->nMap==pT->nMapAlloc ){ + int nNew = pT->nMapAlloc ? pT->nMapAlloc*2 : 64; + int nByte = nNew * sizeof(Fts5TokenDataMap); + Fts5TokenDataMap *aNew; + + aNew = (Fts5TokenDataMap*)sqlite3_realloc(pT->aMap, nByte); + if( aNew==0 ){ + p->rc = SQLITE_NOMEM; + return; + } + + pT->aMap = aNew; + pT->nMapAlloc = nNew; + } + + pT->aMap[pT->nMap].iRowid = iRowid; + pT->aMap[pT->nMap].iPos = iPos; + pT->aMap[pT->nMap].iIter = iIter; + pT->nMap++; + } +} + +/* +** The iterator passed as the only argument must be a tokendata=1 iterator +** (pIter->pTokenDataIter!=0). This function sets the iterator output +** variables (pIter->base.*) according to the contents of the current +** row. +*/ +static void fts5IterSetOutputsTokendata(Fts5Iter *pIter){ + int ii; + int nHit = 0; + i64 iRowid = SMALLEST_INT64; + int iMin = 0; + + Fts5TokenDataIter *pT = pIter->pTokenDataIter; + + pIter->base.nData = 0; + pIter->base.pData = 0; + + for(ii=0; ii<pT->nIter; ii++){ + Fts5Iter *p = pT->apIter[ii]; + if( p->base.bEof==0 ){ + if( nHit==0 || p->base.iRowid<iRowid ){ + iRowid = p->base.iRowid; + nHit = 1; + pIter->base.pData = p->base.pData; + pIter->base.nData = p->base.nData; + iMin = ii; + }else if( p->base.iRowid==iRowid ){ + nHit++; + } + } + } + + if( nHit==0 ){ + pIter->base.bEof = 1; + }else{ + int eDetail = pIter->pIndex->pConfig->eDetail; + pIter->base.bEof = 0; + pIter->base.iRowid = iRowid; + + if( nHit==1 && eDetail==FTS5_DETAIL_FULL ){ + fts5TokendataIterAppendMap(pIter->pIndex, pT, iMin, iRowid, -1); + }else + if( nHit>1 && eDetail!=FTS5_DETAIL_NONE ){ + int nReader = 0; + int nByte = 0; + i64 iPrev = 0; + + /* Allocate array of iterators if they are not already allocated. */ + if( pT->aPoslistReader==0 ){ + pT->aPoslistReader = (Fts5PoslistReader*)sqlite3Fts5MallocZero( + &pIter->pIndex->rc, + pT->nIter * (sizeof(Fts5PoslistReader) + sizeof(int)) + ); + if( pT->aPoslistReader==0 ) return; + pT->aPoslistToIter = (int*)&pT->aPoslistReader[pT->nIter]; + } + + /* Populate an iterator for each poslist that will be merged */ + for(ii=0; ii<pT->nIter; ii++){ + Fts5Iter *p = pT->apIter[ii]; + if( iRowid==p->base.iRowid ){ + pT->aPoslistToIter[nReader] = ii; + sqlite3Fts5PoslistReaderInit( + p->base.pData, p->base.nData, &pT->aPoslistReader[nReader++] + ); + nByte += p->base.nData; + } + } + + /* Ensure the output buffer is large enough */ + if( fts5BufferGrow(&pIter->pIndex->rc, &pIter->poslist, nByte+nHit*10) ){ + return; + } + + /* Ensure the token-mapping is large enough */ + if( eDetail==FTS5_DETAIL_FULL && pT->nMapAlloc<(pT->nMap + nByte) ){ + int nNew = (pT->nMapAlloc + nByte) * 2; + Fts5TokenDataMap *aNew = (Fts5TokenDataMap*)sqlite3_realloc( + pT->aMap, nNew*sizeof(Fts5TokenDataMap) + ); + if( aNew==0 ){ + pIter->pIndex->rc = SQLITE_NOMEM; + return; + } + pT->aMap = aNew; + pT->nMapAlloc = nNew; + } + + pIter->poslist.n = 0; + + while( 1 ){ + i64 iMinPos = LARGEST_INT64; + + /* Find smallest position */ + iMin = 0; + for(ii=0; ii<nReader; ii++){ + Fts5PoslistReader *pReader = &pT->aPoslistReader[ii]; + if( pReader->bEof==0 ){ + if( pReader->iPos<iMinPos ){ + iMinPos = pReader->iPos; + iMin = ii; + } + } + } + + /* If all readers were at EOF, break out of the loop. */ + if( iMinPos==LARGEST_INT64 ) break; + + sqlite3Fts5PoslistSafeAppend(&pIter->poslist, &iPrev, iMinPos); + sqlite3Fts5PoslistReaderNext(&pT->aPoslistReader[iMin]); + + if( eDetail==FTS5_DETAIL_FULL ){ + pT->aMap[pT->nMap].iPos = iMinPos; + pT->aMap[pT->nMap].iIter = pT->aPoslistToIter[iMin]; + pT->aMap[pT->nMap].iRowid = iRowid; + pT->nMap++; + } + } + + pIter->base.pData = pIter->poslist.p; + pIter->base.nData = pIter->poslist.n; + } + } +} + +/* +** The iterator passed as the only argument must be a tokendata=1 iterator +** (pIter->pTokenDataIter!=0). This function advances the iterator. If +** argument bFrom is false, then the iterator is advanced to the next +** entry. Or, if bFrom is true, it is advanced to the first entry with +** a rowid of iFrom or greater. +*/ +static void fts5TokendataIterNext(Fts5Iter *pIter, int bFrom, i64 iFrom){ + int ii; + Fts5TokenDataIter *pT = pIter->pTokenDataIter; + + for(ii=0; ii<pT->nIter; ii++){ + Fts5Iter *p = pT->apIter[ii]; + if( p->base.bEof==0 + && (p->base.iRowid==pIter->base.iRowid || (bFrom && p->base.iRowid<iFrom)) + ){ + fts5MultiIterNext(p->pIndex, p, bFrom, iFrom); + while( bFrom && p->base.bEof==0 + && p->base.iRowid<iFrom + && p->pIndex->rc==SQLITE_OK + ){ + fts5MultiIterNext(p->pIndex, p, 0, 0); + } + } + } + + fts5IterSetOutputsTokendata(pIter); +} + +/* +** If the segment-iterator passed as the first argument is at EOF, then +** set pIter->term to a copy of buffer pTerm. +*/ +static void fts5TokendataSetTermIfEof(Fts5Iter *pIter, Fts5Buffer *pTerm){ + if( pIter && pIter->aSeg[0].pLeaf==0 ){ + fts5BufferSet(&pIter->pIndex->rc, &pIter->aSeg[0].term, pTerm->n, pTerm->p); + } +} + +/* +** This function sets up an iterator to use for a non-prefix query on a +** tokendata=1 table. +*/ +static Fts5Iter *fts5SetupTokendataIter( + Fts5Index *p, /* FTS index to query */ + const u8 *pToken, /* Buffer containing query term */ + int nToken, /* Size of buffer pToken in bytes */ + Fts5Colset *pColset /* Colset to filter on */ +){ + Fts5Iter *pRet = 0; + Fts5TokenDataIter *pSet = 0; + Fts5Structure *pStruct = 0; + const int flags = FTS5INDEX_QUERY_SCANONETERM | FTS5INDEX_QUERY_SCAN; + + Fts5Buffer bSeek = {0, 0, 0}; + Fts5Buffer *pSmall = 0; + + fts5IndexFlush(p); + pStruct = fts5StructureRead(p); + + while( p->rc==SQLITE_OK ){ + Fts5Iter *pPrev = pSet ? pSet->apIter[pSet->nIter-1] : 0; + Fts5Iter *pNew = 0; + Fts5SegIter *pNewIter = 0; + Fts5SegIter *pPrevIter = 0; + + int iLvl, iSeg, ii; + + pNew = fts5MultiIterAlloc(p, pStruct->nSegment); + if( pSmall ){ + fts5BufferSet(&p->rc, &bSeek, pSmall->n, pSmall->p); + fts5BufferAppendBlob(&p->rc, &bSeek, 1, (const u8*)"\0"); + }else{ + fts5BufferSet(&p->rc, &bSeek, nToken, pToken); + } + if( p->rc ){ + sqlite3Fts5IterClose((Fts5IndexIter*)pNew); + break; + } + + pNewIter = &pNew->aSeg[0]; + pPrevIter = (pPrev ? &pPrev->aSeg[0] : 0); + for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){ + for(iSeg=pStruct->aLevel[iLvl].nSeg-1; iSeg>=0; iSeg--){ + Fts5StructureSegment *pSeg = &pStruct->aLevel[iLvl].aSeg[iSeg]; + int bDone = 0; + + if( pPrevIter ){ + if( fts5BufferCompare(pSmall, &pPrevIter->term) ){ + memcpy(pNewIter, pPrevIter, sizeof(Fts5SegIter)); + memset(pPrevIter, 0, sizeof(Fts5SegIter)); + bDone = 1; + }else if( pPrevIter->iEndofDoclist>pPrevIter->pLeaf->szLeaf ){ + fts5SegIterNextInit(p,(const char*)bSeek.p,bSeek.n-1,pSeg,pNewIter); + bDone = 1; + } + } + + if( bDone==0 ){ + fts5SegIterSeekInit(p, bSeek.p, bSeek.n, flags, pSeg, pNewIter); + } + + if( pPrevIter ){ + if( pPrevIter->pTombArray ){ + pNewIter->pTombArray = pPrevIter->pTombArray; + pNewIter->pTombArray->nRef++; + } + }else{ + fts5SegIterAllocTombstone(p, pNewIter); + } + + pNewIter++; + if( pPrevIter ) pPrevIter++; + if( p->rc ) break; + } + } + fts5TokendataSetTermIfEof(pPrev, pSmall); + + pNew->bSkipEmpty = 1; + pNew->pColset = pColset; + fts5IterSetOutputCb(&p->rc, pNew); + + /* Loop through all segments in the new iterator. Find the smallest + ** term that any segment-iterator points to. Iterator pNew will be + ** used for this term. Also, set any iterator that points to a term that + ** does not match pToken/nToken to point to EOF */ + pSmall = 0; + for(ii=0; ii<pNew->nSeg; ii++){ + Fts5SegIter *pII = &pNew->aSeg[ii]; + if( 0==fts5IsTokendataPrefix(&pII->term, pToken, nToken) ){ + fts5SegIterSetEOF(pII); + } + if( pII->pLeaf && (!pSmall || fts5BufferCompare(pSmall, &pII->term)>0) ){ + pSmall = &pII->term; + } + } + + /* If pSmall is still NULL at this point, then the new iterator does + ** not point to any terms that match the query. So delete it and break + ** out of the loop - all required iterators have been collected. */ + if( pSmall==0 ){ + sqlite3Fts5IterClose((Fts5IndexIter*)pNew); + break; + } + + /* Append this iterator to the set and continue. */ + pSet = fts5AppendTokendataIter(p, pSet, pNew); + } + + if( p->rc==SQLITE_OK && pSet ){ + int ii; + for(ii=0; ii<pSet->nIter; ii++){ + Fts5Iter *pIter = pSet->apIter[ii]; + int iSeg; + for(iSeg=0; iSeg<pIter->nSeg; iSeg++){ + pIter->aSeg[iSeg].flags |= FTS5_SEGITER_ONETERM; + } + fts5MultiIterFinishSetup(p, pIter); + } + } + + if( p->rc==SQLITE_OK ){ + pRet = fts5MultiIterAlloc(p, 0); + } + if( pRet ){ + pRet->pTokenDataIter = pSet; + if( pSet ){ + fts5IterSetOutputsTokendata(pRet); + }else{ + pRet->base.bEof = 1; + } + }else{ + fts5TokendataIterDelete(pSet); + } + + fts5StructureRelease(pStruct); + fts5BufferFree(&bSeek); + return pRet; +} + + +/* ** Open a new iterator to iterate though all rowid that match the ** specified token or token prefix. */ @@ -230463,8 +245569,13 @@ static int sqlite3Fts5IndexQuery( if( sqlite3Fts5BufferSize(&p->rc, &buf, nToken+1)==0 ){ int iIdx = 0; /* Index to search */ int iPrefixIdx = 0; /* +1 prefix index */ + int bTokendata = pConfig->bTokendata; if( nToken>0 ) memcpy(&buf.p[1], pToken, nToken); + if( flags & (FTS5INDEX_QUERY_NOTOKENDATA|FTS5INDEX_QUERY_SCAN) ){ + bTokendata = 0; + } + /* Figure out which index to search and set iIdx accordingly. If this ** is a prefix query for which there is no prefix index, set iIdx to ** greater than pConfig->nPrefix to indicate that the query will be @@ -230490,7 +245601,10 @@ static int sqlite3Fts5IndexQuery( } } - if( iIdx<=pConfig->nPrefix ){ + if( bTokendata && iIdx==0 ){ + buf.p[0] = '0'; + pRet = fts5SetupTokendataIter(p, buf.p, nToken+1, pColset); + }else if( iIdx<=pConfig->nPrefix ){ /* Straight index lookup */ Fts5Structure *pStruct = fts5StructureRead(p); buf.p[0] = (u8)(FTS5_MAIN_PREFIX + iIdx); @@ -230537,7 +245651,11 @@ static int sqlite3Fts5IndexQuery( static int sqlite3Fts5IterNext(Fts5IndexIter *pIndexIter){ Fts5Iter *pIter = (Fts5Iter*)pIndexIter; assert( pIter->pIndex->rc==SQLITE_OK ); - fts5MultiIterNext(pIter->pIndex, pIter, 0, 0); + if( pIter->pTokenDataIter ){ + fts5TokendataIterNext(pIter, 0, 0); + }else{ + fts5MultiIterNext(pIter->pIndex, pIter, 0, 0); + } return fts5IndexReturn(pIter->pIndex); } @@ -230570,7 +245688,11 @@ static int sqlite3Fts5IterNextScan(Fts5IndexIter *pIndexIter){ */ static int sqlite3Fts5IterNextFrom(Fts5IndexIter *pIndexIter, i64 iMatch){ Fts5Iter *pIter = (Fts5Iter*)pIndexIter; - fts5MultiIterNextFrom(pIter->pIndex, pIter, iMatch); + if( pIter->pTokenDataIter ){ + fts5TokendataIterNext(pIter, 1, iMatch); + }else{ + fts5MultiIterNextFrom(pIter->pIndex, pIter, iMatch); + } return fts5IndexReturn(pIter->pIndex); } @@ -230586,12 +245708,106 @@ static const char *sqlite3Fts5IterTerm(Fts5IndexIter *pIndexIter, int *pn){ } /* +** This is used by xInstToken() to access the token at offset iOff, column +** iCol of row iRowid. The token is returned via output variables *ppOut +** and *pnOut. The iterator passed as the first argument must be a tokendata=1 +** iterator (pIter->pTokenDataIter!=0). +*/ +static int sqlite3Fts5IterToken( + Fts5IndexIter *pIndexIter, + i64 iRowid, + int iCol, + int iOff, + const char **ppOut, int *pnOut +){ + Fts5Iter *pIter = (Fts5Iter*)pIndexIter; + Fts5TokenDataIter *pT = pIter->pTokenDataIter; + Fts5TokenDataMap *aMap = pT->aMap; + i64 iPos = (((i64)iCol)<<32) + iOff; + + int i1 = 0; + int i2 = pT->nMap; + int iTest = 0; + + while( i2>i1 ){ + iTest = (i1 + i2) / 2; + + if( aMap[iTest].iRowid<iRowid ){ + i1 = iTest+1; + }else if( aMap[iTest].iRowid>iRowid ){ + i2 = iTest; + }else{ + if( aMap[iTest].iPos<iPos ){ + if( aMap[iTest].iPos<0 ){ + break; + } + i1 = iTest+1; + }else if( aMap[iTest].iPos>iPos ){ + i2 = iTest; + }else{ + break; + } + } + } + + if( i2>i1 ){ + Fts5Iter *pMap = pT->apIter[aMap[iTest].iIter]; + *ppOut = (const char*)pMap->aSeg[0].term.p+1; + *pnOut = pMap->aSeg[0].term.n-1; + } + + return SQLITE_OK; +} + +/* +** Clear any existing entries from the token-map associated with the +** iterator passed as the only argument. +*/ +static void sqlite3Fts5IndexIterClearTokendata(Fts5IndexIter *pIndexIter){ + Fts5Iter *pIter = (Fts5Iter*)pIndexIter; + if( pIter && pIter->pTokenDataIter ){ + pIter->pTokenDataIter->nMap = 0; + } +} + +/* +** Set a token-mapping for the iterator passed as the first argument. This +** is used in detail=column or detail=none mode when a token is requested +** using the xInstToken() API. In this case the caller tokenizers the +** current row and configures the token-mapping via multiple calls to this +** function. +*/ +static int sqlite3Fts5IndexIterWriteTokendata( + Fts5IndexIter *pIndexIter, + const char *pToken, int nToken, + i64 iRowid, int iCol, int iOff +){ + Fts5Iter *pIter = (Fts5Iter*)pIndexIter; + Fts5TokenDataIter *pT = pIter->pTokenDataIter; + Fts5Index *p = pIter->pIndex; + int ii; + + assert( p->pConfig->eDetail!=FTS5_DETAIL_FULL ); + assert( pIter->pTokenDataIter ); + + for(ii=0; ii<pT->nIter; ii++){ + Fts5Buffer *pTerm = &pT->apIter[ii]->aSeg[0].term; + if( nToken==pTerm->n-1 && memcmp(pToken, pTerm->p+1, nToken)==0 ) break; + } + if( ii<pT->nIter ){ + fts5TokendataIterAppendMap(p, pT, ii, iRowid, (((i64)iCol)<<32) + iOff); + } + return fts5IndexReturn(p); +} + +/* ** Close an iterator opened by an earlier call to sqlite3Fts5IndexQuery(). */ static void sqlite3Fts5IterClose(Fts5IndexIter *pIndexIter){ if( pIndexIter ){ Fts5Iter *pIter = (Fts5Iter*)pIndexIter; Fts5Index *pIndex = pIter->pIndex; + fts5TokendataIterDelete(pIter->pTokenDataIter); fts5MultiIterFree(pIter); sqlite3Fts5IndexCloseReader(pIndex); } @@ -230675,6 +245891,347 @@ static int sqlite3Fts5IndexLoadConfig(Fts5Index *p){ return fts5IndexReturn(p); } +/* +** Retrieve the origin value that will be used for the segment currently +** being accumulated in the in-memory hash table when it is flushed to +** disk. If successful, SQLITE_OK is returned and (*piOrigin) set to +** the queried value. Or, if an error occurs, an error code is returned +** and the final value of (*piOrigin) is undefined. +*/ +static int sqlite3Fts5IndexGetOrigin(Fts5Index *p, i64 *piOrigin){ + Fts5Structure *pStruct; + pStruct = fts5StructureRead(p); + if( pStruct ){ + *piOrigin = pStruct->nOriginCntr; + fts5StructureRelease(pStruct); + } + return fts5IndexReturn(p); +} + +/* +** Buffer pPg contains a page of a tombstone hash table - one of nPg pages +** associated with the same segment. This function adds rowid iRowid to +** the hash table. The caller is required to guarantee that there is at +** least one free slot on the page. +** +** If parameter bForce is false and the hash table is deemed to be full +** (more than half of the slots are occupied), then non-zero is returned +** and iRowid not inserted. Or, if bForce is true or if the hash table page +** is not full, iRowid is inserted and zero returned. +*/ +static int fts5IndexTombstoneAddToPage( + Fts5Data *pPg, + int bForce, + int nPg, + u64 iRowid +){ + const int szKey = TOMBSTONE_KEYSIZE(pPg); + const int nSlot = TOMBSTONE_NSLOT(pPg); + const int nElem = fts5GetU32(&pPg->p[4]); + int iSlot = (iRowid / nPg) % nSlot; + int nCollide = nSlot; + + if( szKey==4 && iRowid>0xFFFFFFFF ) return 2; + if( iRowid==0 ){ + pPg->p[1] = 0x01; + return 0; + } + + if( bForce==0 && nElem>=(nSlot/2) ){ + return 1; + } + + fts5PutU32(&pPg->p[4], nElem+1); + if( szKey==4 ){ + u32 *aSlot = (u32*)&pPg->p[8]; + while( aSlot[iSlot] ){ + iSlot = (iSlot + 1) % nSlot; + if( nCollide--==0 ) return 0; + } + fts5PutU32((u8*)&aSlot[iSlot], (u32)iRowid); + }else{ + u64 *aSlot = (u64*)&pPg->p[8]; + while( aSlot[iSlot] ){ + iSlot = (iSlot + 1) % nSlot; + if( nCollide--==0 ) return 0; + } + fts5PutU64((u8*)&aSlot[iSlot], iRowid); + } + + return 0; +} + +/* +** This function attempts to build a new hash containing all the keys +** currently in the tombstone hash table for segment pSeg. The new +** hash will be stored in the nOut buffers passed in array apOut[]. +** All pages of the new hash use key-size szKey (4 or 8). +** +** Return 0 if the hash is successfully rebuilt into the nOut pages. +** Or non-zero if it is not (because one page became overfull). In this +** case the caller should retry with a larger nOut parameter. +** +** Parameter pData1 is page iPg1 of the hash table being rebuilt. +*/ +static int fts5IndexTombstoneRehash( + Fts5Index *p, + Fts5StructureSegment *pSeg, /* Segment to rebuild hash of */ + Fts5Data *pData1, /* One page of current hash - or NULL */ + int iPg1, /* Which page of the current hash is pData1 */ + int szKey, /* 4 or 8, the keysize */ + int nOut, /* Number of output pages */ + Fts5Data **apOut /* Array of output hash pages */ +){ + int ii; + int res = 0; + + /* Initialize the headers of all the output pages */ + for(ii=0; ii<nOut; ii++){ + apOut[ii]->p[0] = szKey; + fts5PutU32(&apOut[ii]->p[4], 0); + } + + /* Loop through the current pages of the hash table. */ + for(ii=0; res==0 && ii<pSeg->nPgTombstone; ii++){ + Fts5Data *pData = 0; /* Page ii of the current hash table */ + Fts5Data *pFree = 0; /* Free this at the end of the loop */ + + if( iPg1==ii ){ + pData = pData1; + }else{ + pFree = pData = fts5DataRead(p, FTS5_TOMBSTONE_ROWID(pSeg->iSegid, ii)); + } + + if( pData ){ + int szKeyIn = TOMBSTONE_KEYSIZE(pData); + int nSlotIn = (pData->nn - 8) / szKeyIn; + int iIn; + for(iIn=0; iIn<nSlotIn; iIn++){ + u64 iVal = 0; + + /* Read the value from slot iIn of the input page into iVal. */ + if( szKeyIn==4 ){ + u32 *aSlot = (u32*)&pData->p[8]; + if( aSlot[iIn] ) iVal = fts5GetU32((u8*)&aSlot[iIn]); + }else{ + u64 *aSlot = (u64*)&pData->p[8]; + if( aSlot[iIn] ) iVal = fts5GetU64((u8*)&aSlot[iIn]); + } + + /* If iVal is not 0 at this point, insert it into the new hash table */ + if( iVal ){ + Fts5Data *pPg = apOut[(iVal % nOut)]; + res = fts5IndexTombstoneAddToPage(pPg, 0, nOut, iVal); + if( res ) break; + } + } + + /* If this is page 0 of the old hash, copy the rowid-0-flag from the + ** old hash to the new. */ + if( ii==0 ){ + apOut[0]->p[1] = pData->p[1]; + } + } + fts5DataRelease(pFree); + } + + return res; +} + +/* +** This is called to rebuild the hash table belonging to segment pSeg. +** If parameter pData1 is not NULL, then one page of the existing hash table +** has already been loaded - pData1, which is page iPg1. The key-size for +** the new hash table is szKey (4 or 8). +** +** If successful, the new hash table is not written to disk. Instead, +** output parameter (*pnOut) is set to the number of pages in the new +** hash table, and (*papOut) to point to an array of buffers containing +** the new page data. +** +** If an error occurs, an error code is left in the Fts5Index object and +** both output parameters set to 0 before returning. +*/ +static void fts5IndexTombstoneRebuild( + Fts5Index *p, + Fts5StructureSegment *pSeg, /* Segment to rebuild hash of */ + Fts5Data *pData1, /* One page of current hash - or NULL */ + int iPg1, /* Which page of the current hash is pData1 */ + int szKey, /* 4 or 8, the keysize */ + int *pnOut, /* OUT: Number of output pages */ + Fts5Data ***papOut /* OUT: Output hash pages */ +){ + const int MINSLOT = 32; + int nSlotPerPage = MAX(MINSLOT, (p->pConfig->pgsz - 8) / szKey); + int nSlot = 0; /* Number of slots in each output page */ + int nOut = 0; + + /* Figure out how many output pages (nOut) and how many slots per + ** page (nSlot). There are three possibilities: + ** + ** 1. The hash table does not yet exist. In this case the new hash + ** table will consist of a single page with MINSLOT slots. + ** + ** 2. The hash table exists but is currently a single page. In this + ** case an attempt is made to grow the page to accommodate the new + ** entry. The page is allowed to grow up to nSlotPerPage (see above) + ** slots. + ** + ** 3. The hash table already consists of more than one page, or of + ** a single page already so large that it cannot be grown. In this + ** case the new hash consists of (nPg*2+1) pages of nSlotPerPage + ** slots each, where nPg is the current number of pages in the + ** hash table. + */ + if( pSeg->nPgTombstone==0 ){ + /* Case 1. */ + nOut = 1; + nSlot = MINSLOT; + }else if( pSeg->nPgTombstone==1 ){ + /* Case 2. */ + int nElem = (int)fts5GetU32(&pData1->p[4]); + assert( pData1 && iPg1==0 ); + nOut = 1; + nSlot = MAX(nElem*4, MINSLOT); + if( nSlot>nSlotPerPage ) nOut = 0; + } + if( nOut==0 ){ + /* Case 3. */ + nOut = (pSeg->nPgTombstone * 2 + 1); + nSlot = nSlotPerPage; + } + + /* Allocate the required array and output pages */ + while( 1 ){ + int res = 0; + int ii = 0; + int szPage = 0; + Fts5Data **apOut = 0; + + /* Allocate space for the new hash table */ + assert( nSlot>=MINSLOT ); + apOut = (Fts5Data**)sqlite3Fts5MallocZero(&p->rc, sizeof(Fts5Data*) * nOut); + szPage = 8 + nSlot*szKey; + for(ii=0; ii<nOut; ii++){ + Fts5Data *pNew = (Fts5Data*)sqlite3Fts5MallocZero(&p->rc, + sizeof(Fts5Data)+szPage + ); + if( pNew ){ + pNew->nn = szPage; + pNew->p = (u8*)&pNew[1]; + apOut[ii] = pNew; + } + } + + /* Rebuild the hash table. */ + if( p->rc==SQLITE_OK ){ + res = fts5IndexTombstoneRehash(p, pSeg, pData1, iPg1, szKey, nOut, apOut); + } + if( res==0 ){ + if( p->rc ){ + fts5IndexFreeArray(apOut, nOut); + apOut = 0; + nOut = 0; + } + *pnOut = nOut; + *papOut = apOut; + break; + } + + /* If control flows to here, it was not possible to rebuild the hash + ** table. Free all buffers and then try again with more pages. */ + assert( p->rc==SQLITE_OK ); + fts5IndexFreeArray(apOut, nOut); + nSlot = nSlotPerPage; + nOut = nOut*2 + 1; + } +} + + +/* +** Add a tombstone for rowid iRowid to segment pSeg. +*/ +static void fts5IndexTombstoneAdd( + Fts5Index *p, + Fts5StructureSegment *pSeg, + u64 iRowid +){ + Fts5Data *pPg = 0; + int iPg = -1; + int szKey = 0; + int nHash = 0; + Fts5Data **apHash = 0; + + p->nContentlessDelete++; + + if( pSeg->nPgTombstone>0 ){ + iPg = iRowid % pSeg->nPgTombstone; + pPg = fts5DataRead(p, FTS5_TOMBSTONE_ROWID(pSeg->iSegid,iPg)); + if( pPg==0 ){ + assert( p->rc!=SQLITE_OK ); + return; + } + + if( 0==fts5IndexTombstoneAddToPage(pPg, 0, pSeg->nPgTombstone, iRowid) ){ + fts5DataWrite(p, FTS5_TOMBSTONE_ROWID(pSeg->iSegid,iPg), pPg->p, pPg->nn); + fts5DataRelease(pPg); + return; + } + } + + /* Have to rebuild the hash table. First figure out the key-size (4 or 8). */ + szKey = pPg ? TOMBSTONE_KEYSIZE(pPg) : 4; + if( iRowid>0xFFFFFFFF ) szKey = 8; + + /* Rebuild the hash table */ + fts5IndexTombstoneRebuild(p, pSeg, pPg, iPg, szKey, &nHash, &apHash); + assert( p->rc==SQLITE_OK || (nHash==0 && apHash==0) ); + + /* If all has succeeded, write the new rowid into one of the new hash + ** table pages, then write them all out to disk. */ + if( nHash ){ + int ii = 0; + fts5IndexTombstoneAddToPage(apHash[iRowid % nHash], 1, nHash, iRowid); + for(ii=0; ii<nHash; ii++){ + i64 iTombstoneRowid = FTS5_TOMBSTONE_ROWID(pSeg->iSegid, ii); + fts5DataWrite(p, iTombstoneRowid, apHash[ii]->p, apHash[ii]->nn); + } + pSeg->nPgTombstone = nHash; + fts5StructureWrite(p, p->pStruct); + } + + fts5DataRelease(pPg); + fts5IndexFreeArray(apHash, nHash); +} + +/* +** Add iRowid to the tombstone list of the segment or segments that contain +** rows from origin iOrigin. Return SQLITE_OK if successful, or an SQLite +** error code otherwise. +*/ +static int sqlite3Fts5IndexContentlessDelete(Fts5Index *p, i64 iOrigin, i64 iRowid){ + Fts5Structure *pStruct; + pStruct = fts5StructureRead(p); + if( pStruct ){ + int bFound = 0; /* True after pSeg->nEntryTombstone incr. */ + int iLvl; + for(iLvl=pStruct->nLevel-1; iLvl>=0; iLvl--){ + int iSeg; + for(iSeg=pStruct->aLevel[iLvl].nSeg-1; iSeg>=0; iSeg--){ + Fts5StructureSegment *pSeg = &pStruct->aLevel[iLvl].aSeg[iSeg]; + if( pSeg->iOrigin1<=(u64)iOrigin && pSeg->iOrigin2>=(u64)iOrigin ){ + if( bFound==0 ){ + pSeg->nEntryTombstone++; + bFound = 1; + } + fts5IndexTombstoneAdd(p, pSeg, iRowid); + } + } + } + fts5StructureRelease(pStruct); + } + return fts5IndexReturn(p); +} /************************************************************************* ************************************************************************** @@ -230758,7 +246315,9 @@ static int fts5QueryCksum( int eDetail = p->pConfig->eDetail; u64 cksum = *pCksum; Fts5IndexIter *pIter = 0; - int rc = sqlite3Fts5IndexQuery(p, z, n, flags, 0, &pIter); + int rc = sqlite3Fts5IndexQuery( + p, z, n, (flags | FTS5INDEX_QUERY_NOTOKENDATA), 0, &pIter + ); while( rc==SQLITE_OK && ALWAYS(pIter!=0) && 0==sqlite3Fts5IterEof(pIter) ){ i64 rowid = pIter->iRowid; @@ -230925,7 +246484,7 @@ static void fts5IndexIntegrityCheckEmpty( } static void fts5IntegrityCheckPgidx(Fts5Index *p, Fts5Data *pLeaf){ - int iTermOff = 0; + i64 iTermOff = 0; int ii; Fts5Buffer buf1 = {0,0,0}; @@ -230934,7 +246493,7 @@ static void fts5IntegrityCheckPgidx(Fts5Index *p, Fts5Data *pLeaf){ ii = pLeaf->szLeaf; while( ii<pLeaf->nn && p->rc==SQLITE_OK ){ int res; - int iOff; + i64 iOff; int nIncr; ii += fts5GetVarint32(&pLeaf->p[ii], nIncr); @@ -230979,6 +246538,7 @@ static void fts5IndexIntegrityCheckSegment( Fts5StructureSegment *pSeg /* Segment to check internal consistency */ ){ Fts5Config *pConfig = p->pConfig; + int bSecureDelete = (pConfig->iVersion==FTS5_CURRENT_VERSION_SECUREDELETE); sqlite3_stmt *pStmt = 0; int rc2; int iIdxPrevLeaf = pSeg->pgnoFirst-1; @@ -231014,7 +246574,19 @@ static void fts5IndexIntegrityCheckSegment( ** is also a rowid pointer within the leaf page header, it points to a ** location before the term. */ if( pLeaf->nn<=pLeaf->szLeaf ){ - p->rc = FTS5_CORRUPT; + + if( nIdxTerm==0 + && pConfig->iVersion==FTS5_CURRENT_VERSION_SECUREDELETE + && pLeaf->nn==pLeaf->szLeaf + && pLeaf->nn==4 + ){ + /* special case - the very first page in a segment keeps its %_idx + ** entry even if all the terms are removed from it by secure-delete + ** operations. */ + }else{ + p->rc = FTS5_CORRUPT; + } + }else{ int iOff; /* Offset of first term on leaf */ int iRowidOff; /* Offset of first rowid on leaf */ @@ -231078,9 +246650,12 @@ static void fts5IndexIntegrityCheckSegment( ASSERT_SZLEAF_OK(pLeaf); if( iRowidOff>=pLeaf->szLeaf ){ p->rc = FTS5_CORRUPT; - }else{ + }else if( bSecureDelete==0 || iRowidOff>0 ){ + i64 iDlRowid = fts5DlidxIterRowid(pDlidx); fts5GetVarint(&pLeaf->p[iRowidOff], (u64*)&iRowid); - if( iRowid!=fts5DlidxIterRowid(pDlidx) ) p->rc = FTS5_CORRUPT; + if( iRowid<iDlRowid || (bSecureDelete==0 && iRowid!=iDlRowid) ){ + p->rc = FTS5_CORRUPT; + } } fts5DataRelease(pLeaf); } @@ -231174,6 +246749,7 @@ static int sqlite3Fts5IndexIntegrityCheck(Fts5Index *p, u64 cksum, int bUseCksum /* If this is a new term, query for it. Update cksum3 with the results. */ fts5TestTerm(p, &term, z, n, cksum2, &cksum3); + if( p->rc ) break; if( eDetail==FTS5_DETAIL_NONE ){ if( 0==fts5MultiIterIsEmpty(p, pIter) ){ @@ -231209,13 +246785,14 @@ static int sqlite3Fts5IndexIntegrityCheck(Fts5Index *p, u64 cksum, int bUseCksum ** function only. */ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) /* ** Decode a segment-data rowid from the %_data table. This function is ** the opposite of macro FTS5_SEGMENT_ROWID(). */ static void fts5DecodeRowid( i64 iRowid, /* Rowid from %_data table */ + int *pbTombstone, /* OUT: Tombstone hash flag */ int *piSegid, /* OUT: Segment id */ int *pbDlidx, /* OUT: Dlidx flag */ int *piHeight, /* OUT: Height */ @@ -231231,13 +246808,16 @@ static void fts5DecodeRowid( iRowid >>= FTS5_DATA_DLI_B; *piSegid = (int)(iRowid & (((i64)1 << FTS5_DATA_ID_B) - 1)); + iRowid >>= FTS5_DATA_ID_B; + + *pbTombstone = (int)(iRowid & 0x0001); } -#endif /* SQLITE_TEST */ +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) static void fts5DebugRowid(int *pRc, Fts5Buffer *pBuf, i64 iKey){ - int iSegid, iHeight, iPgno, bDlidx; /* Rowid compenents */ - fts5DecodeRowid(iKey, &iSegid, &bDlidx, &iHeight, &iPgno); + int iSegid, iHeight, iPgno, bDlidx, bTomb; /* Rowid compenents */ + fts5DecodeRowid(iKey, &bTomb, &iSegid, &bDlidx, &iHeight, &iPgno); if( iSegid==0 ){ if( iKey==FTS5_AVERAGES_ROWID ){ @@ -231247,14 +246827,16 @@ static void fts5DebugRowid(int *pRc, Fts5Buffer *pBuf, i64 iKey){ } } else{ - sqlite3Fts5BufferAppendPrintf(pRc, pBuf, "{%ssegid=%d h=%d pgno=%d}", - bDlidx ? "dlidx " : "", iSegid, iHeight, iPgno + sqlite3Fts5BufferAppendPrintf(pRc, pBuf, "{%s%ssegid=%d h=%d pgno=%d}", + bDlidx ? "dlidx " : "", + bTomb ? "tombstone " : "", + iSegid, iHeight, iPgno ); } } -#endif /* SQLITE_TEST */ +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) static void fts5DebugStructure( int *pRc, /* IN/OUT: error code */ Fts5Buffer *pBuf, @@ -231269,16 +246851,22 @@ static void fts5DebugStructure( ); for(iSeg=0; iSeg<pLvl->nSeg; iSeg++){ Fts5StructureSegment *pSeg = &pLvl->aSeg[iSeg]; - sqlite3Fts5BufferAppendPrintf(pRc, pBuf, " {id=%d leaves=%d..%d}", + sqlite3Fts5BufferAppendPrintf(pRc, pBuf, " {id=%d leaves=%d..%d", pSeg->iSegid, pSeg->pgnoFirst, pSeg->pgnoLast ); + if( pSeg->iOrigin1>0 ){ + sqlite3Fts5BufferAppendPrintf(pRc, pBuf, " origin=%lld..%lld", + pSeg->iOrigin1, pSeg->iOrigin2 + ); + } + sqlite3Fts5BufferAppendPrintf(pRc, pBuf, "}"); } sqlite3Fts5BufferAppendPrintf(pRc, pBuf, "}"); } } -#endif /* SQLITE_TEST */ +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) /* ** This is part of the fts5_decode() debugging aid. ** @@ -231303,9 +246891,9 @@ static void fts5DecodeStructure( fts5DebugStructure(pRc, pBuf, p); fts5StructureRelease(p); } -#endif /* SQLITE_TEST */ +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) /* ** This is part of the fts5_decode() debugging aid. ** @@ -231328,9 +246916,9 @@ static void fts5DecodeAverages( zSpace = " "; } } -#endif /* SQLITE_TEST */ +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) /* ** Buffer (a/n) is assumed to contain a list of serialized varints. Read ** each varint and append its string representation to buffer pBuf. Return @@ -231347,9 +246935,9 @@ static int fts5DecodePoslist(int *pRc, Fts5Buffer *pBuf, const u8 *a, int n){ } return iOff; } -#endif /* SQLITE_TEST */ +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) /* ** The start of buffer (a/n) contains the start of a doclist. The doclist ** may or may not finish within the buffer. This function appends a text @@ -231382,9 +246970,9 @@ static int fts5DecodeDoclist(int *pRc, Fts5Buffer *pBuf, const u8 *a, int n){ return iOff; } -#endif /* SQLITE_TEST */ +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) /* ** This function is part of the fts5_decode() debugging function. It is ** only ever used with detail=none tables. @@ -231425,9 +247013,27 @@ static void fts5DecodeRowidList( sqlite3Fts5BufferAppendPrintf(pRc, pBuf, " %lld%s", iRowid, zApp); } } -#endif /* SQLITE_TEST */ +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) +static void fts5BufferAppendTerm(int *pRc, Fts5Buffer *pBuf, Fts5Buffer *pTerm){ + int ii; + fts5BufferGrow(pRc, pBuf, pTerm->n*2 + 1); + if( *pRc==SQLITE_OK ){ + for(ii=0; ii<pTerm->n; ii++){ + if( pTerm->p[ii]==0x00 ){ + pBuf->p[pBuf->n++] = '\\'; + pBuf->p[pBuf->n++] = '0'; + }else{ + pBuf->p[pBuf->n++] = pTerm->p[ii]; + } + } + pBuf->p[pBuf->n] = 0x00; + } +} +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ + +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) /* ** The implementation of user-defined scalar function fts5_decode(). */ @@ -231438,6 +247044,7 @@ static void fts5DecodeFunction( ){ i64 iRowid; /* Rowid for record being decoded */ int iSegid,iHeight,iPgno,bDlidx;/* Rowid components */ + int bTomb; const u8 *aBlob; int n; /* Record to decode */ u8 *a = 0; Fts5Buffer s; /* Build up text to return here */ @@ -231460,7 +247067,7 @@ static void fts5DecodeFunction( if( a==0 ) goto decode_out; if( n>0 ) memcpy(a, aBlob, n); - fts5DecodeRowid(iRowid, &iSegid, &bDlidx, &iHeight, &iPgno); + fts5DecodeRowid(iRowid, &bTomb, &iSegid, &bDlidx, &iHeight, &iPgno); fts5DebugRowid(&rc, &s, iRowid); if( bDlidx ){ @@ -231479,6 +247086,28 @@ static void fts5DecodeFunction( " %d(%lld)", lvl.iLeafPgno, lvl.iRowid ); } + }else if( bTomb ){ + u32 nElem = fts5GetU32(&a[4]); + int szKey = (aBlob[0]==4 || aBlob[0]==8) ? aBlob[0] : 8; + int nSlot = (n - 8) / szKey; + int ii; + sqlite3Fts5BufferAppendPrintf(&rc, &s, " nElem=%d", (int)nElem); + if( aBlob[1] ){ + sqlite3Fts5BufferAppendPrintf(&rc, &s, " 0"); + } + for(ii=0; ii<nSlot; ii++){ + u64 iVal = 0; + if( szKey==4 ){ + u32 *aSlot = (u32*)&aBlob[8]; + if( aSlot[ii] ) iVal = fts5GetU32((u8*)&aSlot[ii]); + }else{ + u64 *aSlot = (u64*)&aBlob[8]; + if( aSlot[ii] ) iVal = fts5GetU64((u8*)&aSlot[ii]); + } + if( iVal!=0 ){ + sqlite3Fts5BufferAppendPrintf(&rc, &s, " %lld", (i64)iVal); + } + } }else if( iSegid==0 ){ if( iRowid==FTS5_AVERAGES_ROWID ){ fts5DecodeAverages(&rc, &s, a, n); @@ -231504,16 +247133,15 @@ static void fts5DecodeFunction( fts5DecodeRowidList(&rc, &s, &a[4], iTermOff-4); iOff = iTermOff; - while( iOff<szLeaf ){ + while( iOff<szLeaf && rc==SQLITE_OK ){ int nAppend; /* Read the term data for the next term*/ iOff += fts5GetVarint32(&a[iOff], nAppend); term.n = nKeep; fts5BufferAppendBlob(&rc, &term, nAppend, &a[iOff]); - sqlite3Fts5BufferAppendPrintf( - &rc, &s, " term=%.*s", term.n, (const char*)term.p - ); + sqlite3Fts5BufferAppendPrintf(&rc, &s, " term="); + fts5BufferAppendTerm(&rc, &s, &term); iOff += nAppend; /* Figure out where the doclist for this term ends */ @@ -231524,8 +247152,11 @@ static void fts5DecodeFunction( }else{ iTermOff = szLeaf; } - - fts5DecodeRowidList(&rc, &s, &a[iOff], iTermOff-iOff); + if( iTermOff>szLeaf ){ + rc = FTS5_CORRUPT; + }else{ + fts5DecodeRowidList(&rc, &s, &a[iOff], iTermOff-iOff); + } iOff = iTermOff; if( iOff<szLeaf ){ iOff += fts5GetVarint32(&a[iOff], nKeep); @@ -231618,9 +247249,8 @@ static void fts5DecodeFunction( fts5BufferAppendBlob(&rc, &term, nByte, &a[iOff]); iOff += nByte; - sqlite3Fts5BufferAppendPrintf( - &rc, &s, " term=%.*s", term.n, (const char*)term.p - ); + sqlite3Fts5BufferAppendPrintf(&rc, &s, " term="); + fts5BufferAppendTerm(&rc, &s, &term); iOff += fts5DecodeDoclist(&rc, &s, &a[iOff], iEnd-iOff); } @@ -231636,9 +247266,9 @@ static void fts5DecodeFunction( } fts5BufferFree(&s); } -#endif /* SQLITE_TEST */ +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) /* ** The implementation of user-defined scalar function fts5_rowid(). */ @@ -231672,7 +247302,235 @@ static void fts5RowidFunction( } } } -#endif /* SQLITE_TEST */ +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ + +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) + +typedef struct Fts5StructVtab Fts5StructVtab; +struct Fts5StructVtab { + sqlite3_vtab base; +}; + +typedef struct Fts5StructVcsr Fts5StructVcsr; +struct Fts5StructVcsr { + sqlite3_vtab_cursor base; + Fts5Structure *pStruct; + int iLevel; + int iSeg; + int iRowid; +}; + +/* +** Create a new fts5_structure() table-valued function. +*/ +static int fts5structConnectMethod( + sqlite3 *db, + void *pAux, + int argc, const char *const*argv, + sqlite3_vtab **ppVtab, + char **pzErr +){ + Fts5StructVtab *pNew = 0; + int rc = SQLITE_OK; + + rc = sqlite3_declare_vtab(db, + "CREATE TABLE xyz(" + "level, segment, merge, segid, leaf1, leaf2, loc1, loc2, " + "npgtombstone, nentrytombstone, nentry, struct HIDDEN);" + ); + if( rc==SQLITE_OK ){ + pNew = sqlite3Fts5MallocZero(&rc, sizeof(*pNew)); + } + + *ppVtab = (sqlite3_vtab*)pNew; + return rc; +} + +/* +** We must have a single struct=? constraint that will be passed through +** into the xFilter method. If there is no valid stmt=? constraint, +** then return an SQLITE_CONSTRAINT error. +*/ +static int fts5structBestIndexMethod( + sqlite3_vtab *tab, + sqlite3_index_info *pIdxInfo +){ + int i; + int rc = SQLITE_CONSTRAINT; + struct sqlite3_index_constraint *p; + pIdxInfo->estimatedCost = (double)100; + pIdxInfo->estimatedRows = 100; + pIdxInfo->idxNum = 0; + for(i=0, p=pIdxInfo->aConstraint; i<pIdxInfo->nConstraint; i++, p++){ + if( p->usable==0 ) continue; + if( p->op==SQLITE_INDEX_CONSTRAINT_EQ && p->iColumn==11 ){ + rc = SQLITE_OK; + pIdxInfo->aConstraintUsage[i].omit = 1; + pIdxInfo->aConstraintUsage[i].argvIndex = 1; + break; + } + } + return rc; +} + +/* +** This method is the destructor for bytecodevtab objects. +*/ +static int fts5structDisconnectMethod(sqlite3_vtab *pVtab){ + Fts5StructVtab *p = (Fts5StructVtab*)pVtab; + sqlite3_free(p); + return SQLITE_OK; +} + +/* +** Constructor for a new bytecodevtab_cursor object. +*/ +static int fts5structOpenMethod(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCsr){ + int rc = SQLITE_OK; + Fts5StructVcsr *pNew = 0; + + pNew = sqlite3Fts5MallocZero(&rc, sizeof(*pNew)); + *ppCsr = (sqlite3_vtab_cursor*)pNew; + + return SQLITE_OK; +} + +/* +** Destructor for a bytecodevtab_cursor. +*/ +static int fts5structCloseMethod(sqlite3_vtab_cursor *cur){ + Fts5StructVcsr *pCsr = (Fts5StructVcsr*)cur; + fts5StructureRelease(pCsr->pStruct); + sqlite3_free(pCsr); + return SQLITE_OK; +} + + +/* +** Advance a bytecodevtab_cursor to its next row of output. +*/ +static int fts5structNextMethod(sqlite3_vtab_cursor *cur){ + Fts5StructVcsr *pCsr = (Fts5StructVcsr*)cur; + Fts5Structure *p = pCsr->pStruct; + + assert( pCsr->pStruct ); + pCsr->iSeg++; + pCsr->iRowid++; + while( pCsr->iLevel<p->nLevel && pCsr->iSeg>=p->aLevel[pCsr->iLevel].nSeg ){ + pCsr->iLevel++; + pCsr->iSeg = 0; + } + if( pCsr->iLevel>=p->nLevel ){ + fts5StructureRelease(pCsr->pStruct); + pCsr->pStruct = 0; + } + return SQLITE_OK; +} + +/* +** Return TRUE if the cursor has been moved off of the last +** row of output. +*/ +static int fts5structEofMethod(sqlite3_vtab_cursor *cur){ + Fts5StructVcsr *pCsr = (Fts5StructVcsr*)cur; + return pCsr->pStruct==0; +} + +static int fts5structRowidMethod( + sqlite3_vtab_cursor *cur, + sqlite_int64 *piRowid +){ + Fts5StructVcsr *pCsr = (Fts5StructVcsr*)cur; + *piRowid = pCsr->iRowid; + return SQLITE_OK; +} + +/* +** Return values of columns for the row at which the bytecodevtab_cursor +** is currently pointing. +*/ +static int fts5structColumnMethod( + sqlite3_vtab_cursor *cur, /* The cursor */ + sqlite3_context *ctx, /* First argument to sqlite3_result_...() */ + int i /* Which column to return */ +){ + Fts5StructVcsr *pCsr = (Fts5StructVcsr*)cur; + Fts5Structure *p = pCsr->pStruct; + Fts5StructureSegment *pSeg = &p->aLevel[pCsr->iLevel].aSeg[pCsr->iSeg]; + + switch( i ){ + case 0: /* level */ + sqlite3_result_int(ctx, pCsr->iLevel); + break; + case 1: /* segment */ + sqlite3_result_int(ctx, pCsr->iSeg); + break; + case 2: /* merge */ + sqlite3_result_int(ctx, pCsr->iSeg < p->aLevel[pCsr->iLevel].nMerge); + break; + case 3: /* segid */ + sqlite3_result_int(ctx, pSeg->iSegid); + break; + case 4: /* leaf1 */ + sqlite3_result_int(ctx, pSeg->pgnoFirst); + break; + case 5: /* leaf2 */ + sqlite3_result_int(ctx, pSeg->pgnoLast); + break; + case 6: /* origin1 */ + sqlite3_result_int64(ctx, pSeg->iOrigin1); + break; + case 7: /* origin2 */ + sqlite3_result_int64(ctx, pSeg->iOrigin2); + break; + case 8: /* npgtombstone */ + sqlite3_result_int(ctx, pSeg->nPgTombstone); + break; + case 9: /* nentrytombstone */ + sqlite3_result_int64(ctx, pSeg->nEntryTombstone); + break; + case 10: /* nentry */ + sqlite3_result_int64(ctx, pSeg->nEntry); + break; + } + return SQLITE_OK; +} + +/* +** Initialize a cursor. +** +** idxNum==0 means show all subprograms +** idxNum==1 means show only the main bytecode and omit subprograms. +*/ +static int fts5structFilterMethod( + sqlite3_vtab_cursor *pVtabCursor, + int idxNum, const char *idxStr, + int argc, sqlite3_value **argv +){ + Fts5StructVcsr *pCsr = (Fts5StructVcsr *)pVtabCursor; + int rc = SQLITE_OK; + + const u8 *aBlob = 0; + int nBlob = 0; + + assert( argc==1 ); + fts5StructureRelease(pCsr->pStruct); + pCsr->pStruct = 0; + + nBlob = sqlite3_value_bytes(argv[0]); + aBlob = (const u8*)sqlite3_value_blob(argv[0]); + rc = fts5StructureDecode(aBlob, nBlob, 0, &pCsr->pStruct); + if( rc==SQLITE_OK ){ + pCsr->iLevel = 0; + pCsr->iRowid = 0; + pCsr->iSeg = -1; + rc = fts5structNextMethod(pVtabCursor); + } + + return rc; +} + +#endif /* SQLITE_TEST || SQLITE_FTS5_DEBUG */ /* ** This is called as part of registering the FTS5 module with database @@ -231683,7 +247541,7 @@ static void fts5RowidFunction( ** SQLite error code is returned instead. */ static int sqlite3Fts5IndexInit(sqlite3 *db){ -#ifdef SQLITE_TEST +#if defined(SQLITE_TEST) || defined(SQLITE_FTS5_DEBUG) int rc = sqlite3_create_function( db, "fts5_decode", 2, SQLITE_UTF8, 0, fts5DecodeFunction, 0, 0 ); @@ -231700,6 +247558,37 @@ static int sqlite3Fts5IndexInit(sqlite3 *db){ db, "fts5_rowid", -1, SQLITE_UTF8, 0, fts5RowidFunction, 0, 0 ); } + + if( rc==SQLITE_OK ){ + static const sqlite3_module fts5structure_module = { + 0, /* iVersion */ + 0, /* xCreate */ + fts5structConnectMethod, /* xConnect */ + fts5structBestIndexMethod, /* xBestIndex */ + fts5structDisconnectMethod, /* xDisconnect */ + 0, /* xDestroy */ + fts5structOpenMethod, /* xOpen */ + fts5structCloseMethod, /* xClose */ + fts5structFilterMethod, /* xFilter */ + fts5structNextMethod, /* xNext */ + fts5structEofMethod, /* xEof */ + fts5structColumnMethod, /* xColumn */ + fts5structRowidMethod, /* xRowid */ + 0, /* xUpdate */ + 0, /* xBegin */ + 0, /* xSync */ + 0, /* xCommit */ + 0, /* xRollback */ + 0, /* xFindFunction */ + 0, /* xRename */ + 0, /* xSavepoint */ + 0, /* xRelease */ + 0, /* xRollbackTo */ + 0, /* xShadowName */ + 0 /* xIntegrity */ + }; + rc = sqlite3_create_module(db, "fts5_structure", &fts5structure_module, 0); + } return rc; #else return SQLITE_OK; @@ -231835,6 +247724,8 @@ struct Fts5FullTable { Fts5Storage *pStorage; /* Document store */ Fts5Global *pGlobal; /* Global (connection wide) data */ Fts5Cursor *pSortCsr; /* Sort data from this cursor */ + int iSavepoint; /* Successful xSavepoint()+1 */ + #ifdef SQLITE_DEBUG struct Fts5TransactionState ts; #endif @@ -231978,7 +247869,7 @@ static void fts5CheckTransactionState(Fts5FullTable *p, int op, int iSavepoint){ break; case FTS5_SYNC: - assert( p->ts.eState==1 ); + assert( p->ts.eState==1 || p->ts.eState==2 ); p->ts.eState = 2; break; @@ -231993,21 +247884,21 @@ static void fts5CheckTransactionState(Fts5FullTable *p, int op, int iSavepoint){ break; case FTS5_SAVEPOINT: - assert( p->ts.eState==1 ); + assert( p->ts.eState>=1 ); assert( iSavepoint>=0 ); assert( iSavepoint>=p->ts.iSavepoint ); p->ts.iSavepoint = iSavepoint; break; case FTS5_RELEASE: - assert( p->ts.eState==1 ); + assert( p->ts.eState>=1 ); assert( iSavepoint>=0 ); assert( iSavepoint<=p->ts.iSavepoint ); p->ts.iSavepoint = iSavepoint-1; break; case FTS5_ROLLBACKTO: - assert( p->ts.eState==1 ); + assert( p->ts.eState>=1 ); assert( iSavepoint>=-1 ); /* The following assert() can fail if another vtab strikes an error ** within an xSavepoint() call then SQLite calls xRollbackTo() - without @@ -232123,6 +248014,13 @@ static int fts5InitVtab( pConfig->pzErrmsg = 0; } + if( rc==SQLITE_OK && pConfig->eContent==FTS5_CONTENT_NORMAL ){ + rc = sqlite3_vtab_config(db, SQLITE_VTAB_CONSTRAINT_SUPPORT, (int)1); + } + if( rc==SQLITE_OK ){ + rc = sqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS); + } + if( rc!=SQLITE_OK ){ fts5FreeVtab(pTab); pTab = 0; @@ -232365,12 +248263,15 @@ static int fts5BestIndexMethod(sqlite3_vtab *pVTab, sqlite3_index_info *pInfo){ } idxStr[iIdxStr] = '\0'; - /* Set idxFlags flags for the ORDER BY clause */ + /* Set idxFlags flags for the ORDER BY clause + ** + ** Note that tokendata=1 tables cannot currently handle "ORDER BY rowid DESC". + */ if( pInfo->nOrderBy==1 ){ int iSort = pInfo->aOrderBy[0].iColumn; if( iSort==(pConfig->nCol+1) && bSeenMatch ){ idxFlags |= FTS5_BI_ORDER_RANK; - }else if( iSort==-1 ){ + }else if( iSort==-1 && (!pInfo->aOrderBy[0].desc || !pConfig->bTokendata) ){ idxFlags |= FTS5_BI_ORDER_ROWID; } if( BitFlagTest(idxFlags, FTS5_BI_ORDER_RANK|FTS5_BI_ORDER_ROWID) ){ @@ -232622,6 +248523,16 @@ static int fts5NextMethod(sqlite3_vtab_cursor *pCursor){ ); assert( !CsrFlagTest(pCsr, FTS5CSR_EOF) ); + /* If this cursor uses FTS5_PLAN_MATCH and this is a tokendata=1 table, + ** clear any token mappings accumulated at the fts5_index.c level. In + ** other cases, specifically FTS5_PLAN_SOURCE and FTS5_PLAN_SORTED_MATCH, + ** we need to retain the mappings for the entire query. */ + if( pCsr->ePlan==FTS5_PLAN_MATCH + && ((Fts5Table*)pCursor->pVtab)->pConfig->bTokendata + ){ + sqlite3Fts5ExprClearTokens(pCsr->pExpr); + } + if( pCsr->ePlan<3 ){ int bSkip = 0; if( (rc = fts5CursorReseek(pCsr, &bSkip)) || bSkip ) return rc; @@ -233047,6 +248958,9 @@ static int fts5FilterMethod( pCsr->iFirstRowid = fts5GetRowidLimit(pRowidGe, SMALLEST_INT64); } + rc = sqlite3Fts5IndexLoadConfig(pTab->p.pIndex); + if( rc!=SQLITE_OK ) goto filter_out; + if( pTab->pSortCsr ){ /* If pSortCsr is non-NULL, then this call is being made as part of ** processing for a "... MATCH <expr> ORDER BY rank" query (ePlan is @@ -233069,6 +248983,7 @@ static int fts5FilterMethod( pCsr->pExpr = pTab->pSortCsr->pExpr; rc = fts5CursorFirst(pTab, pCsr, bDesc); }else if( pCsr->pExpr ){ + assert( rc==SQLITE_OK ); rc = fts5CursorParseRank(pConfig, pCsr, pRank); if( rc==SQLITE_OK ){ if( bOrderByRank ){ @@ -233240,6 +249155,7 @@ static int fts5SpecialInsert( Fts5Config *pConfig = pTab->p.pConfig; int rc = SQLITE_OK; int bError = 0; + int bLoadConfig = 0; if( 0==sqlite3_stricmp("delete-all", zCmd) ){ if( pConfig->eContent==FTS5_CONTENT_NORMAL ){ @@ -233251,6 +249167,7 @@ static int fts5SpecialInsert( }else{ rc = sqlite3Fts5StorageDeleteAll(pTab->pStorage); } + bLoadConfig = 1; }else if( 0==sqlite3_stricmp("rebuild", zCmd) ){ if( pConfig->eContent==FTS5_CONTENT_NONE ){ fts5SetVtabError(pTab, @@ -233260,6 +249177,7 @@ static int fts5SpecialInsert( }else{ rc = sqlite3Fts5StorageRebuild(pTab->pStorage); } + bLoadConfig = 1; }else if( 0==sqlite3_stricmp("optimize", zCmd) ){ rc = sqlite3Fts5StorageOptimize(pTab->pStorage); }else if( 0==sqlite3_stricmp("merge", zCmd) ){ @@ -233272,8 +249190,13 @@ static int fts5SpecialInsert( }else if( 0==sqlite3_stricmp("prefix-index", zCmd) ){ pConfig->bPrefixIndex = sqlite3_value_int(pVal); #endif + }else if( 0==sqlite3_stricmp("flush", zCmd) ){ + rc = sqlite3Fts5FlushToDisk(&pTab->p); }else{ - rc = sqlite3Fts5IndexLoadConfig(pTab->p.pIndex); + rc = sqlite3Fts5FlushToDisk(&pTab->p); + if( rc==SQLITE_OK ){ + rc = sqlite3Fts5IndexLoadConfig(pTab->p.pIndex); + } if( rc==SQLITE_OK ){ rc = sqlite3Fts5ConfigSetValue(pTab->p.pConfig, zCmd, pVal, &bError); } @@ -233285,6 +249208,12 @@ static int fts5SpecialInsert( } } } + + if( rc==SQLITE_OK && bLoadConfig ){ + pTab->p.pConfig->iCookie--; + rc = sqlite3Fts5IndexLoadConfig(pTab->p.pIndex); + } + return rc; } @@ -233341,9 +249270,10 @@ static int fts5UpdateMethod( Fts5Config *pConfig = pTab->p.pConfig; int eType0; /* value_type() of apVal[0] */ int rc = SQLITE_OK; /* Return code */ + int bUpdateOrDelete = 0; /* A transaction must be open when this is called. */ - assert( pTab->ts.eState==1 ); + assert( pTab->ts.eState==1 || pTab->ts.eState==2 ); assert( pVtab->zErrMsg==0 ); assert( nArg==1 || nArg==(2+pConfig->nCol+2) ); @@ -233351,6 +249281,11 @@ static int fts5UpdateMethod( || sqlite3_value_type(apVal[0])==SQLITE_NULL ); assert( pTab->p.pConfig->pzErrmsg==0 ); + if( pConfig->pgsz==0 ){ + rc = sqlite3Fts5IndexLoadConfig(pTab->p.pIndex); + if( rc!=SQLITE_OK ) return rc; + } + pTab->p.pConfig->pzErrmsg = &pTab->p.base.zErrMsg; /* Put any active cursors into REQUIRE_SEEK state. */ @@ -233365,7 +249300,14 @@ static int fts5UpdateMethod( if( pConfig->eContent!=FTS5_CONTENT_NORMAL && 0==sqlite3_stricmp("delete", z) ){ - rc = fts5SpecialDelete(pTab, apVal); + if( pConfig->bContentlessDelete ){ + fts5SetVtabError(pTab, + "'delete' may not be used with a contentless_delete=1 table" + ); + rc = SQLITE_ERROR; + }else{ + rc = fts5SpecialDelete(pTab, apVal); + } }else{ rc = fts5SpecialInsert(pTab, z, apVal[2 + pConfig->nCol + 1]); } @@ -233382,7 +249324,7 @@ static int fts5UpdateMethod( ** Cases 3 and 4 may violate the rowid constraint. */ int eConflict = SQLITE_ABORT; - if( pConfig->eContent==FTS5_CONTENT_NORMAL ){ + if( pConfig->eContent==FTS5_CONTENT_NORMAL || pConfig->bContentlessDelete ){ eConflict = sqlite3_vtab_on_conflict(pConfig->db); } @@ -233390,8 +249332,12 @@ static int fts5UpdateMethod( assert( nArg!=1 || eType0==SQLITE_INTEGER ); /* Filter out attempts to run UPDATE or DELETE on contentless tables. - ** This is not suported. */ - if( eType0==SQLITE_INTEGER && fts5IsContentless(pTab) ){ + ** This is not suported. Except - they are both supported if the CREATE + ** VIRTUAL TABLE statement contained "contentless_delete=1". */ + if( eType0==SQLITE_INTEGER + && pConfig->eContent==FTS5_CONTENT_NONE + && pConfig->bContentlessDelete==0 + ){ pTab->p.base.zErrMsg = sqlite3_mprintf( "cannot %s contentless fts5 table: %s", (nArg>1 ? "UPDATE" : "DELETE from"), pConfig->zName @@ -233403,6 +249349,7 @@ static int fts5UpdateMethod( else if( nArg==1 ){ i64 iDel = sqlite3_value_int64(apVal[0]); /* Rowid to delete */ rc = sqlite3Fts5StorageDelete(pTab->pStorage, iDel, 0); + bUpdateOrDelete = 1; } /* INSERT or UPDATE */ @@ -233414,10 +249361,12 @@ static int fts5UpdateMethod( } else if( eType0!=SQLITE_INTEGER ){ - /* If this is a REPLACE, first remove the current entry (if any) */ + /* An INSERT statement. If the conflict-mode is REPLACE, first remove + ** the current entry (if any). */ if( eConflict==SQLITE_REPLACE && eType1==SQLITE_INTEGER ){ i64 iNew = sqlite3_value_int64(apVal[1]); /* Rowid to delete */ rc = sqlite3Fts5StorageDelete(pTab->pStorage, iNew, 0); + bUpdateOrDelete = 1; } fts5StorageInsert(&rc, pTab, apVal, pRowid); } @@ -233446,10 +249395,24 @@ static int fts5UpdateMethod( rc = sqlite3Fts5StorageDelete(pTab->pStorage, iOld, 0); fts5StorageInsert(&rc, pTab, apVal, pRowid); } + bUpdateOrDelete = 1; } } } + if( rc==SQLITE_OK + && bUpdateOrDelete + && pConfig->bSecureDelete + && pConfig->iVersion==FTS5_CURRENT_VERSION + ){ + rc = sqlite3Fts5StorageConfigValue( + pTab->pStorage, "version", 0, FTS5_CURRENT_VERSION_SECUREDELETE + ); + if( rc==SQLITE_OK ){ + pConfig->iVersion = FTS5_CURRENT_VERSION_SECUREDELETE; + } + } + pTab->p.pConfig->pzErrmsg = 0; return rc; } @@ -233462,8 +249425,7 @@ static int fts5SyncMethod(sqlite3_vtab *pVtab){ Fts5FullTable *pTab = (Fts5FullTable*)pVtab; fts5CheckTransactionState(pTab, FTS5_SYNC, 0); pTab->p.pConfig->pzErrmsg = &pTab->p.base.zErrMsg; - fts5TripCursors(pTab); - rc = sqlite3Fts5StorageSync(pTab->pStorage); + rc = sqlite3Fts5FlushToDisk(&pTab->p); pTab->p.pConfig->pzErrmsg = 0; return rc; } @@ -233559,7 +249521,10 @@ static int fts5ApiColumnText( ){ int rc = SQLITE_OK; Fts5Cursor *pCsr = (Fts5Cursor*)pCtx; - if( fts5IsContentless((Fts5FullTable*)(pCsr->base.pVtab)) + Fts5Table *pTab = (Fts5Table*)(pCsr->base.pVtab); + if( iCol<0 || iCol>=pTab->pConfig->nCol ){ + rc = SQLITE_RANGE; + }else if( fts5IsContentless((Fts5FullTable*)(pCsr->base.pVtab)) || pCsr->ePlan==FTS5_PLAN_SPECIAL ){ *pz = 0; @@ -233584,8 +249549,9 @@ static int fts5CsrPoslist( int rc = SQLITE_OK; int bLive = (pCsr->pSorter==0); - if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_POSLIST) ){ - + if( iPhrase<0 || iPhrase>=sqlite3Fts5ExprPhraseCount(pCsr->pExpr) ){ + rc = SQLITE_RANGE; + }else if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_POSLIST) ){ if( pConfig->eDetail!=FTS5_DETAIL_FULL ){ Fts5PoslistPopulator *aPopulator; int i; @@ -233609,15 +249575,21 @@ static int fts5CsrPoslist( CsrFlagClear(pCsr, FTS5CSR_REQUIRE_POSLIST); } - if( pCsr->pSorter && pConfig->eDetail==FTS5_DETAIL_FULL ){ - Fts5Sorter *pSorter = pCsr->pSorter; - int i1 = (iPhrase==0 ? 0 : pSorter->aIdx[iPhrase-1]); - *pn = pSorter->aIdx[iPhrase] - i1; - *pa = &pSorter->aPoslist[i1]; + if( rc==SQLITE_OK ){ + if( pCsr->pSorter && pConfig->eDetail==FTS5_DETAIL_FULL ){ + Fts5Sorter *pSorter = pCsr->pSorter; + int i1 = (iPhrase==0 ? 0 : pSorter->aIdx[iPhrase-1]); + *pn = pSorter->aIdx[iPhrase] - i1; + *pa = &pSorter->aPoslist[i1]; + }else{ + *pn = sqlite3Fts5ExprPoslist(pCsr->pExpr, iPhrase, pa); + } }else{ - *pn = sqlite3Fts5ExprPoslist(pCsr->pExpr, iPhrase, pa); + *pa = 0; + *pn = 0; } + return rc; } @@ -233724,12 +249696,6 @@ static int fts5ApiInst( ){ if( iIdx<0 || iIdx>=pCsr->nInstCount ){ rc = SQLITE_RANGE; -#if 0 - }else if( fts5IsOffsetless((Fts5Table*)pCsr->base.pVtab) ){ - *piPhrase = pCsr->aInst[iIdx*3]; - *piCol = pCsr->aInst[iIdx*3 + 2]; - *piOff = -1; -#endif }else{ *piPhrase = pCsr->aInst[iIdx*3]; *piCol = pCsr->aInst[iIdx*3 + 1]; @@ -233984,13 +249950,56 @@ static int fts5ApiPhraseFirstColumn( return rc; } +/* +** xQueryToken() API implemenetation. +*/ +static int fts5ApiQueryToken( + Fts5Context* pCtx, + int iPhrase, + int iToken, + const char **ppOut, + int *pnOut +){ + Fts5Cursor *pCsr = (Fts5Cursor*)pCtx; + return sqlite3Fts5ExprQueryToken(pCsr->pExpr, iPhrase, iToken, ppOut, pnOut); +} + +/* +** xInstToken() API implemenetation. +*/ +static int fts5ApiInstToken( + Fts5Context *pCtx, + int iIdx, + int iToken, + const char **ppOut, int *pnOut +){ + Fts5Cursor *pCsr = (Fts5Cursor*)pCtx; + int rc = SQLITE_OK; + if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_INST)==0 + || SQLITE_OK==(rc = fts5CacheInstArray(pCsr)) + ){ + if( iIdx<0 || iIdx>=pCsr->nInstCount ){ + rc = SQLITE_RANGE; + }else{ + int iPhrase = pCsr->aInst[iIdx*3]; + int iCol = pCsr->aInst[iIdx*3 + 1]; + int iOff = pCsr->aInst[iIdx*3 + 2]; + i64 iRowid = fts5CursorRowid(pCsr); + rc = sqlite3Fts5ExprInstToken( + pCsr->pExpr, iRowid, iPhrase, iCol, iOff, iToken, ppOut, pnOut + ); + } + } + return rc; +} + static int fts5ApiQueryPhrase(Fts5Context*, int, void*, int(*)(const Fts5ExtensionApi*, Fts5Context*, void*) ); static const Fts5ExtensionApi sFts5Api = { - 2, /* iVersion */ + 3, /* iVersion */ fts5ApiUserData, fts5ApiColumnCount, fts5ApiRowCount, @@ -234010,6 +250019,8 @@ static const Fts5ExtensionApi sFts5Api = { fts5ApiPhraseNext, fts5ApiPhraseFirstColumn, fts5ApiPhraseNextColumn, + fts5ApiQueryToken, + fts5ApiInstToken }; /* @@ -234230,6 +250241,12 @@ static int fts5ColumnMethod( sqlite3_result_value(pCtx, sqlite3_column_value(pCsr->pStmt, iCol+1)); } pConfig->pzErrmsg = 0; + }else if( pConfig->bContentlessDelete && sqlite3_vtab_nochange(pCtx) ){ + char *zErr = sqlite3_mprintf("cannot UPDATE a subset of " + "columns on fts5 contentless-delete table: %s", pConfig->zName + ); + sqlite3_result_error(pCtx, zErr, -1); + sqlite3_free(zErr); } return rc; } @@ -234268,8 +250285,10 @@ static int fts5RenameMethod( sqlite3_vtab *pVtab, /* Virtual table handle */ const char *zName /* New name of table */ ){ + int rc; Fts5FullTable *pTab = (Fts5FullTable*)pVtab; - return sqlite3Fts5StorageRename(pTab->pStorage, zName); + rc = sqlite3Fts5StorageRename(pTab->pStorage, zName); + return rc; } static int sqlite3Fts5FlushToDisk(Fts5Table *pTab){ @@ -234283,9 +250302,15 @@ static int sqlite3Fts5FlushToDisk(Fts5Table *pTab){ ** Flush the contents of the pending-terms table to disk. */ static int fts5SavepointMethod(sqlite3_vtab *pVtab, int iSavepoint){ - UNUSED_PARAM(iSavepoint); /* Call below is a no-op for NDEBUG builds */ - fts5CheckTransactionState((Fts5FullTable*)pVtab, FTS5_SAVEPOINT, iSavepoint); - return sqlite3Fts5FlushToDisk((Fts5Table*)pVtab); + Fts5FullTable *pTab = (Fts5FullTable*)pVtab; + int rc = SQLITE_OK; + + fts5CheckTransactionState(pTab, FTS5_SAVEPOINT, iSavepoint); + rc = sqlite3Fts5FlushToDisk((Fts5Table*)pVtab); + if( rc==SQLITE_OK ){ + pTab->iSavepoint = iSavepoint+1; + } + return rc; } /* @@ -234294,9 +250319,16 @@ static int fts5SavepointMethod(sqlite3_vtab *pVtab, int iSavepoint){ ** This is a no-op. */ static int fts5ReleaseMethod(sqlite3_vtab *pVtab, int iSavepoint){ - UNUSED_PARAM(iSavepoint); /* Call below is a no-op for NDEBUG builds */ - fts5CheckTransactionState((Fts5FullTable*)pVtab, FTS5_RELEASE, iSavepoint); - return sqlite3Fts5FlushToDisk((Fts5Table*)pVtab); + Fts5FullTable *pTab = (Fts5FullTable*)pVtab; + int rc = SQLITE_OK; + fts5CheckTransactionState(pTab, FTS5_RELEASE, iSavepoint); + if( (iSavepoint+1)<pTab->iSavepoint ){ + rc = sqlite3Fts5FlushToDisk(&pTab->p); + if( rc==SQLITE_OK ){ + pTab->iSavepoint = iSavepoint; + } + } + return rc; } /* @@ -234306,10 +250338,14 @@ static int fts5ReleaseMethod(sqlite3_vtab *pVtab, int iSavepoint){ */ static int fts5RollbackToMethod(sqlite3_vtab *pVtab, int iSavepoint){ Fts5FullTable *pTab = (Fts5FullTable*)pVtab; - UNUSED_PARAM(iSavepoint); /* Call below is a no-op for NDEBUG builds */ + int rc = SQLITE_OK; fts5CheckTransactionState(pTab, FTS5_ROLLBACKTO, iSavepoint); fts5TripCursors(pTab); - return sqlite3Fts5StorageRollback(pTab->pStorage); + if( (iSavepoint+1)<=pTab->iSavepoint ){ + pTab->p.pConfig->pgsz = 0; + rc = sqlite3Fts5StorageRollback(pTab->pStorage); + } + return rc; } /* @@ -234511,7 +250547,7 @@ static void fts5SourceIdFunc( ){ assert( nArg==0 ); UNUSED_PARAM2(nArg, apUnused); - sqlite3_result_text(pCtx, "fts5: 2022-05-06 15:25:27 78d9c993d404cdfaa7fdd2973fa1052e3da9f66215cff9c5540ebe55c407d9fe", -1, SQLITE_TRANSIENT); + sqlite3_result_text(pCtx, "fts5: 2024-01-30 16:01:20 e876e51a0ed5c5b3126f52e532044363a014bc594cfefa87ffb5b82257cc467a", -1, SQLITE_TRANSIENT); } /* @@ -234529,9 +250565,40 @@ static int fts5ShadowName(const char *zName){ return 0; } +/* +** Run an integrity check on the FTS5 data structures. Return a string +** if anything is found amiss. Return a NULL pointer if everything is +** OK. +*/ +static int fts5IntegrityMethod( + sqlite3_vtab *pVtab, /* the FTS5 virtual table to check */ + const char *zSchema, /* Name of schema in which this table lives */ + const char *zTabname, /* Name of the table itself */ + int isQuick, /* True if this is a quick-check */ + char **pzErr /* Write error message here */ +){ + Fts5FullTable *pTab = (Fts5FullTable*)pVtab; + int rc; + + assert( pzErr!=0 && *pzErr==0 ); + UNUSED_PARAM(isQuick); + rc = sqlite3Fts5StorageIntegrity(pTab->pStorage, 0); + if( (rc&0xff)==SQLITE_CORRUPT ){ + *pzErr = sqlite3_mprintf("malformed inverted index for FTS5 table %s.%s", + zSchema, zTabname); + }else if( rc!=SQLITE_OK ){ + *pzErr = sqlite3_mprintf("unable to validate the inverted index for" + " FTS5 table %s.%s: %s", + zSchema, zTabname, sqlite3_errstr(rc)); + } + sqlite3Fts5IndexCloseReader(pTab->p.pIndex); + + return SQLITE_OK; +} + static int fts5Init(sqlite3 *db){ static const sqlite3_module fts5Mod = { - /* iVersion */ 3, + /* iVersion */ 4, /* xCreate */ fts5CreateMethod, /* xConnect */ fts5ConnectMethod, /* xBestIndex */ fts5BestIndexMethod, @@ -234554,7 +250621,8 @@ static int fts5Init(sqlite3 *db){ /* xSavepoint */ fts5SavepointMethod, /* xRelease */ fts5ReleaseMethod, /* xRollbackTo */ fts5RollbackToMethod, - /* xShadowName */ fts5ShadowName + /* xShadowName */ fts5ShadowName, + /* xIntegrity */ fts5IntegrityMethod }; int rc; @@ -234584,7 +250652,9 @@ static int fts5Init(sqlite3 *db){ } if( rc==SQLITE_OK ){ rc = sqlite3_create_function( - db, "fts5_source_id", 0, SQLITE_UTF8, p, fts5SourceIdFunc, 0, 0 + db, "fts5_source_id", 0, + SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS, + p, fts5SourceIdFunc, 0, 0 ); } } @@ -234722,10 +250792,10 @@ static int fts5StorageGetStmt( "INSERT INTO %Q.'%q_content' VALUES(%s)", /* INSERT_CONTENT */ "REPLACE INTO %Q.'%q_content' VALUES(%s)", /* REPLACE_CONTENT */ "DELETE FROM %Q.'%q_content' WHERE id=?", /* DELETE_CONTENT */ - "REPLACE INTO %Q.'%q_docsize' VALUES(?,?)", /* REPLACE_DOCSIZE */ + "REPLACE INTO %Q.'%q_docsize' VALUES(?,?%s)", /* REPLACE_DOCSIZE */ "DELETE FROM %Q.'%q_docsize' WHERE id=?", /* DELETE_DOCSIZE */ - "SELECT sz FROM %Q.'%q_docsize' WHERE id=?", /* LOOKUP_DOCSIZE */ + "SELECT sz%s FROM %Q.'%q_docsize' WHERE id=?", /* LOOKUP_DOCSIZE */ "REPLACE INTO %Q.'%q_config' VALUES(?,?)", /* REPLACE_CONFIG */ "SELECT %s FROM %s AS T", /* SCAN */ @@ -234773,6 +250843,19 @@ static int fts5StorageGetStmt( break; } + case FTS5_STMT_REPLACE_DOCSIZE: + zSql = sqlite3_mprintf(azStmt[eStmt], pC->zDb, pC->zName, + (pC->bContentlessDelete ? ",?" : "") + ); + break; + + case FTS5_STMT_LOOKUP_DOCSIZE: + zSql = sqlite3_mprintf(azStmt[eStmt], + (pC->bContentlessDelete ? ",origin" : ""), + pC->zDb, pC->zName + ); + break; + default: zSql = sqlite3_mprintf(azStmt[eStmt], pC->zDb, pC->zName); break; @@ -234962,9 +251045,11 @@ static int sqlite3Fts5StorageOpen( } if( rc==SQLITE_OK && pConfig->bColumnsize ){ - rc = sqlite3Fts5CreateTable( - pConfig, "docsize", "id INTEGER PRIMARY KEY, sz BLOB", 0, pzErr - ); + const char *zCols = "id INTEGER PRIMARY KEY, sz BLOB"; + if( pConfig->bContentlessDelete ){ + zCols = "id INTEGER PRIMARY KEY, sz BLOB, origin INTEGER"; + } + rc = sqlite3Fts5CreateTable(pConfig, "docsize", zCols, 0, pzErr); } if( rc==SQLITE_OK ){ rc = sqlite3Fts5CreateTable( @@ -235041,7 +251126,7 @@ static int fts5StorageDeleteFromIndex( ){ Fts5Config *pConfig = p->pConfig; sqlite3_stmt *pSeek = 0; /* SELECT to read row iDel from %_data */ - int rc; /* Return code */ + int rc = SQLITE_OK; /* Return code */ int rc2; /* sqlite3_reset() return code */ int iCol; Fts5InsertCtx ctx; @@ -235057,7 +251142,6 @@ static int fts5StorageDeleteFromIndex( ctx.pStorage = p; ctx.iCol = -1; - rc = sqlite3Fts5IndexBeginWrite(p->pIndex, 1, iDel); for(iCol=1; rc==SQLITE_OK && iCol<=pConfig->nCol; iCol++){ if( pConfig->abUnindexed[iCol-1]==0 ){ const char *zText; @@ -235094,6 +251178,37 @@ static int fts5StorageDeleteFromIndex( return rc; } +/* +** This function is called to process a DELETE on a contentless_delete=1 +** table. It adds the tombstone required to delete the entry with rowid +** iDel. If successful, SQLITE_OK is returned. Or, if an error occurs, +** an SQLite error code. +*/ +static int fts5StorageContentlessDelete(Fts5Storage *p, i64 iDel){ + i64 iOrigin = 0; + sqlite3_stmt *pLookup = 0; + int rc = SQLITE_OK; + + assert( p->pConfig->bContentlessDelete ); + assert( p->pConfig->eContent==FTS5_CONTENT_NONE ); + + /* Look up the origin of the document in the %_docsize table. Store + ** this in stack variable iOrigin. */ + rc = fts5StorageGetStmt(p, FTS5_STMT_LOOKUP_DOCSIZE, &pLookup, 0); + if( rc==SQLITE_OK ){ + sqlite3_bind_int64(pLookup, 1, iDel); + if( SQLITE_ROW==sqlite3_step(pLookup) ){ + iOrigin = sqlite3_column_int64(pLookup, 1); + } + rc = sqlite3_reset(pLookup); + } + + if( rc==SQLITE_OK && iOrigin!=0 ){ + rc = sqlite3Fts5IndexContentlessDelete(p->pIndex, iOrigin, iDel); + } + + return rc; +} /* ** Insert a record into the %_docsize table. Specifically, do: @@ -235114,10 +251229,17 @@ static int fts5StorageInsertDocsize( rc = fts5StorageGetStmt(p, FTS5_STMT_REPLACE_DOCSIZE, &pReplace, 0); if( rc==SQLITE_OK ){ sqlite3_bind_int64(pReplace, 1, iRowid); - sqlite3_bind_blob(pReplace, 2, pBuf->p, pBuf->n, SQLITE_STATIC); - sqlite3_step(pReplace); - rc = sqlite3_reset(pReplace); - sqlite3_bind_null(pReplace, 2); + if( p->pConfig->bContentlessDelete ){ + i64 iOrigin = 0; + rc = sqlite3Fts5IndexGetOrigin(p->pIndex, &iOrigin); + sqlite3_bind_int64(pReplace, 3, iOrigin); + } + if( rc==SQLITE_OK ){ + sqlite3_bind_blob(pReplace, 2, pBuf->p, pBuf->n, SQLITE_STATIC); + sqlite3_step(pReplace); + rc = sqlite3_reset(pReplace); + sqlite3_bind_null(pReplace, 2); + } } } return rc; @@ -235181,7 +251303,15 @@ static int sqlite3Fts5StorageDelete(Fts5Storage *p, i64 iDel, sqlite3_value **ap /* Delete the index records */ if( rc==SQLITE_OK ){ - rc = fts5StorageDeleteFromIndex(p, iDel, apVal); + rc = sqlite3Fts5IndexBeginWrite(p->pIndex, 1, iDel); + } + + if( rc==SQLITE_OK ){ + if( p->pConfig->bContentlessDelete ){ + rc = fts5StorageContentlessDelete(p, iDel); + }else{ + rc = fts5StorageDeleteFromIndex(p, iDel, apVal); + } } /* Delete the %_docsize record */ @@ -235258,7 +251388,7 @@ static int sqlite3Fts5StorageRebuild(Fts5Storage *p){ } if( rc==SQLITE_OK ){ - rc = fts5StorageGetStmt(p, FTS5_STMT_SCAN, &pScan, 0); + rc = fts5StorageGetStmt(p, FTS5_STMT_SCAN, &pScan, pConfig->pzErrmsg); } while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pScan) ){ @@ -235769,7 +251899,9 @@ static int sqlite3Fts5StorageSync(Fts5Storage *p){ i64 iLastRowid = sqlite3_last_insert_rowid(p->pConfig->db); if( p->bTotalsValid ){ rc = fts5StorageSaveTotals(p); - p->bTotalsValid = 0; + if( rc==SQLITE_OK ){ + p->bTotalsValid = 0; + } } if( rc==SQLITE_OK ){ rc = sqlite3Fts5IndexSync(p->pIndex); @@ -236043,6 +252175,12 @@ static const unsigned char sqlite3Utf8Trans1[] = { #endif /* ifndef SQLITE_AMALGAMATION */ +#define FTS5_SKIP_UTF8(zIn) { \ + if( ((unsigned char)(*(zIn++)))>=0xc0 ){ \ + while( (((unsigned char)*zIn) & 0xc0)==0x80 ){ zIn++; } \ + } \ +} + typedef struct Unicode61Tokenizer Unicode61Tokenizer; struct Unicode61Tokenizer { unsigned char aTokenChar[128]; /* ASCII range token characters */ @@ -237078,6 +253216,7 @@ static int fts5PorterTokenize( typedef struct TrigramTokenizer TrigramTokenizer; struct TrigramTokenizer { int bFold; /* True to fold to lower-case */ + int iFoldParam; /* Parameter to pass to Fts5UnicodeFold() */ }; /* @@ -237104,6 +253243,7 @@ static int fts5TriCreate( }else{ int i; pNew->bFold = 1; + pNew->iFoldParam = 0; for(i=0; rc==SQLITE_OK && i<nArg; i+=2){ const char *zArg = azArg[i+1]; if( 0==sqlite3_stricmp(azArg[i], "case_sensitive") ){ @@ -237112,10 +253252,21 @@ static int fts5TriCreate( }else{ pNew->bFold = (zArg[0]=='0'); } + }else if( 0==sqlite3_stricmp(azArg[i], "remove_diacritics") ){ + if( (zArg[0]!='0' && zArg[0]!='1' && zArg[0]!='2') || zArg[1] ){ + rc = SQLITE_ERROR; + }else{ + pNew->iFoldParam = (zArg[0]!='0') ? 2 : 0; + } }else{ rc = SQLITE_ERROR; } } + + if( pNew->iFoldParam!=0 && pNew->bFold==0 ){ + rc = SQLITE_ERROR; + } + if( rc!=SQLITE_OK ){ fts5TriDelete((Fts5Tokenizer*)pNew); pNew = 0; @@ -237138,40 +253289,62 @@ static int fts5TriTokenize( TrigramTokenizer *p = (TrigramTokenizer*)pTok; int rc = SQLITE_OK; char aBuf[32]; + char *zOut = aBuf; + int ii; const unsigned char *zIn = (const unsigned char*)pText; const unsigned char *zEof = &zIn[nText]; u32 iCode; + int aStart[3]; /* Input offset of each character in aBuf[] */ UNUSED_PARAM(unusedFlags); - while( 1 ){ - char *zOut = aBuf; - int iStart = zIn - (const unsigned char*)pText; - const unsigned char *zNext; - - READ_UTF8(zIn, zEof, iCode); - if( iCode==0 ) break; - zNext = zIn; - if( zIn<zEof ){ - if( p->bFold ) iCode = sqlite3Fts5UnicodeFold(iCode, 0); - WRITE_UTF8(zOut, iCode); + + /* Populate aBuf[] with the characters for the first trigram. */ + for(ii=0; ii<3; ii++){ + do { + aStart[ii] = zIn - (const unsigned char*)pText; READ_UTF8(zIn, zEof, iCode); - if( iCode==0 ) break; - }else{ - break; - } - if( zIn<zEof ){ - if( p->bFold ) iCode = sqlite3Fts5UnicodeFold(iCode, 0); - WRITE_UTF8(zOut, iCode); + if( iCode==0 ) return SQLITE_OK; + if( p->bFold ) iCode = sqlite3Fts5UnicodeFold(iCode, p->iFoldParam); + }while( iCode==0 ); + WRITE_UTF8(zOut, iCode); + } + + /* At the start of each iteration of this loop: + ** + ** aBuf: Contains 3 characters. The 3 characters of the next trigram. + ** zOut: Points to the byte following the last character in aBuf. + ** aStart[3]: Contains the byte offset in the input text corresponding + ** to the start of each of the three characters in the buffer. + */ + assert( zIn<=zEof ); + while( 1 ){ + int iNext; /* Start of character following current tri */ + const char *z1; + + /* Read characters from the input up until the first non-diacritic */ + do { + iNext = zIn - (const unsigned char*)pText; READ_UTF8(zIn, zEof, iCode); if( iCode==0 ) break; - if( p->bFold ) iCode = sqlite3Fts5UnicodeFold(iCode, 0); - WRITE_UTF8(zOut, iCode); - }else{ - break; - } - rc = xToken(pCtx, 0, aBuf, zOut-aBuf, iStart, iStart + zOut-aBuf); - if( rc!=SQLITE_OK ) break; - zIn = zNext; + if( p->bFold ) iCode = sqlite3Fts5UnicodeFold(iCode, p->iFoldParam); + }while( iCode==0 ); + + /* Pass the current trigram back to fts5 */ + rc = xToken(pCtx, 0, aBuf, zOut-aBuf, aStart[0], iNext); + if( iCode==0 || rc!=SQLITE_OK ) break; + + /* Remove the first character from buffer aBuf[]. Append the character + ** with codepoint iCode. */ + z1 = aBuf; + FTS5_SKIP_UTF8(z1); + memmove(aBuf, z1, zOut - z1); + zOut -= (z1 - aBuf); + WRITE_UTF8(zOut, iCode); + + /* Update the aStart[] array */ + aStart[0] = aStart[1]; + aStart[1] = aStart[2]; + aStart[2] = iNext; } return rc; @@ -237194,7 +253367,9 @@ static int sqlite3Fts5TokenizerPattern( ){ if( xCreate==fts5TriCreate ){ TrigramTokenizer *p = (TrigramTokenizer*)pTok; - return p->bFold ? FTS5_PATTERN_LIKE : FTS5_PATTERN_GLOB; + if( p->iFoldParam==0 ){ + return p->bFold ? FTS5_PATTERN_LIKE : FTS5_PATTERN_GLOB; + } } return FTS5_PATTERN_NONE; } @@ -238983,7 +255158,7 @@ static int fts5VocabFilterMethod( if( pEq ){ zTerm = (const char *)sqlite3_value_text(pEq); nTerm = sqlite3_value_bytes(pEq); - f = 0; + f = FTS5INDEX_QUERY_NOTOKENDATA; }else{ if( pGe ){ zTerm = (const char *)sqlite3_value_text(pGe); @@ -239137,7 +255312,8 @@ static int sqlite3Fts5VocabInit(Fts5Global *pGlobal, sqlite3 *db){ /* xSavepoint */ 0, /* xRelease */ 0, /* xRollbackTo */ 0, - /* xShadowName */ 0 + /* xShadowName */ 0, + /* xIntegrity */ 0 }; void *p = (void*)pGlobal; @@ -239182,6 +255358,16 @@ SQLITE_EXTENSION_INIT1 #ifndef SQLITE_OMIT_VIRTUALTABLE + +#define STMT_NUM_INTEGER_COLUMN 10 +typedef struct StmtRow StmtRow; +struct StmtRow { + sqlite3_int64 iRowid; /* Rowid value */ + char *zSql; /* column "sql" */ + int aCol[STMT_NUM_INTEGER_COLUMN+1]; /* all other column values */ + StmtRow *pNext; /* Next row to return */ +}; + /* stmt_vtab is a subclass of sqlite3_vtab which will ** serve as the underlying representation of a stmt virtual table */ @@ -239199,8 +255385,7 @@ typedef struct stmt_cursor stmt_cursor; struct stmt_cursor { sqlite3_vtab_cursor base; /* Base class - must be first */ sqlite3 *db; /* Database connection for this cursor */ - sqlite3_stmt *pStmt; /* Statement cursor is currently pointing at */ - sqlite3_int64 iRowid; /* The rowid */ + StmtRow *pRow; /* Current row */ }; /* @@ -239240,11 +255425,15 @@ static int stmtConnect( #define STMT_COLUMN_MEM 10 /* SQLITE_STMTSTATUS_MEMUSED */ + (void)pAux; + (void)argc; + (void)argv; + (void)pzErr; rc = sqlite3_declare_vtab(db, "CREATE TABLE x(sql,ncol,ro,busy,nscan,nsort,naidx,nstep," "reprep,run,mem)"); if( rc==SQLITE_OK ){ - pNew = sqlite3_malloc( sizeof(*pNew) ); + pNew = sqlite3_malloc64( sizeof(*pNew) ); *ppVtab = (sqlite3_vtab*)pNew; if( pNew==0 ) return SQLITE_NOMEM; memset(pNew, 0, sizeof(*pNew)); @@ -239266,7 +255455,7 @@ static int stmtDisconnect(sqlite3_vtab *pVtab){ */ static int stmtOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){ stmt_cursor *pCur; - pCur = sqlite3_malloc( sizeof(*pCur) ); + pCur = sqlite3_malloc64( sizeof(*pCur) ); if( pCur==0 ) return SQLITE_NOMEM; memset(pCur, 0, sizeof(*pCur)); pCur->db = ((stmt_vtab*)p)->db; @@ -239274,10 +255463,21 @@ static int stmtOpen(sqlite3_vtab *p, sqlite3_vtab_cursor **ppCursor){ return SQLITE_OK; } +static void stmtCsrReset(stmt_cursor *pCur){ + StmtRow *pRow = 0; + StmtRow *pNext = 0; + for(pRow=pCur->pRow; pRow; pRow=pNext){ + pNext = pRow->pNext; + sqlite3_free(pRow); + } + pCur->pRow = 0; +} + /* ** Destructor for a stmt_cursor. */ static int stmtClose(sqlite3_vtab_cursor *cur){ + stmtCsrReset((stmt_cursor*)cur); sqlite3_free(cur); return SQLITE_OK; } @@ -239288,8 +255488,9 @@ static int stmtClose(sqlite3_vtab_cursor *cur){ */ static int stmtNext(sqlite3_vtab_cursor *cur){ stmt_cursor *pCur = (stmt_cursor*)cur; - pCur->iRowid++; - pCur->pStmt = sqlite3_next_stmt(pCur->db, pCur->pStmt); + StmtRow *pNext = pCur->pRow->pNext; + sqlite3_free(pCur->pRow); + pCur->pRow = pNext; return SQLITE_OK; } @@ -239303,39 +255504,11 @@ static int stmtColumn( int i /* Which column to return */ ){ stmt_cursor *pCur = (stmt_cursor*)cur; - switch( i ){ - case STMT_COLUMN_SQL: { - sqlite3_result_text(ctx, sqlite3_sql(pCur->pStmt), -1, SQLITE_TRANSIENT); - break; - } - case STMT_COLUMN_NCOL: { - sqlite3_result_int(ctx, sqlite3_column_count(pCur->pStmt)); - break; - } - case STMT_COLUMN_RO: { - sqlite3_result_int(ctx, sqlite3_stmt_readonly(pCur->pStmt)); - break; - } - case STMT_COLUMN_BUSY: { - sqlite3_result_int(ctx, sqlite3_stmt_busy(pCur->pStmt)); - break; - } - default: { - assert( i==STMT_COLUMN_MEM ); - i = SQLITE_STMTSTATUS_MEMUSED + - STMT_COLUMN_NSCAN - SQLITE_STMTSTATUS_FULLSCAN_STEP; - /* Fall thru */ - } - case STMT_COLUMN_NSCAN: - case STMT_COLUMN_NSORT: - case STMT_COLUMN_NAIDX: - case STMT_COLUMN_NSTEP: - case STMT_COLUMN_REPREP: - case STMT_COLUMN_RUN: { - sqlite3_result_int(ctx, sqlite3_stmt_status(pCur->pStmt, - i-STMT_COLUMN_NSCAN+SQLITE_STMTSTATUS_FULLSCAN_STEP, 0)); - break; - } + StmtRow *pRow = pCur->pRow; + if( i==STMT_COLUMN_SQL ){ + sqlite3_result_text(ctx, pRow->zSql, -1, SQLITE_TRANSIENT); + }else{ + sqlite3_result_int(ctx, pRow->aCol[i]); } return SQLITE_OK; } @@ -239346,7 +255519,7 @@ static int stmtColumn( */ static int stmtRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){ stmt_cursor *pCur = (stmt_cursor*)cur; - *pRowid = pCur->iRowid; + *pRowid = pCur->pRow->iRowid; return SQLITE_OK; } @@ -239356,7 +255529,7 @@ static int stmtRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){ */ static int stmtEof(sqlite3_vtab_cursor *cur){ stmt_cursor *pCur = (stmt_cursor*)cur; - return pCur->pStmt==0; + return pCur->pRow==0; } /* @@ -239371,9 +255544,57 @@ static int stmtFilter( int argc, sqlite3_value **argv ){ stmt_cursor *pCur = (stmt_cursor *)pVtabCursor; - pCur->pStmt = 0; - pCur->iRowid = 0; - return stmtNext(pVtabCursor); + sqlite3_stmt *p = 0; + sqlite3_int64 iRowid = 1; + StmtRow **ppRow = 0; + + (void)idxNum; + (void)idxStr; + (void)argc; + (void)argv; + stmtCsrReset(pCur); + ppRow = &pCur->pRow; + for(p=sqlite3_next_stmt(pCur->db, 0); p; p=sqlite3_next_stmt(pCur->db, p)){ + const char *zSql = sqlite3_sql(p); + sqlite3_int64 nSql = zSql ? strlen(zSql)+1 : 0; + StmtRow *pNew = (StmtRow*)sqlite3_malloc64(sizeof(StmtRow) + nSql); + + if( pNew==0 ) return SQLITE_NOMEM; + memset(pNew, 0, sizeof(StmtRow)); + if( zSql ){ + pNew->zSql = (char*)&pNew[1]; + memcpy(pNew->zSql, zSql, nSql); + } + pNew->aCol[STMT_COLUMN_NCOL] = sqlite3_column_count(p); + pNew->aCol[STMT_COLUMN_RO] = sqlite3_stmt_readonly(p); + pNew->aCol[STMT_COLUMN_BUSY] = sqlite3_stmt_busy(p); + pNew->aCol[STMT_COLUMN_NSCAN] = sqlite3_stmt_status( + p, SQLITE_STMTSTATUS_FULLSCAN_STEP, 0 + ); + pNew->aCol[STMT_COLUMN_NSORT] = sqlite3_stmt_status( + p, SQLITE_STMTSTATUS_SORT, 0 + ); + pNew->aCol[STMT_COLUMN_NAIDX] = sqlite3_stmt_status( + p, SQLITE_STMTSTATUS_AUTOINDEX, 0 + ); + pNew->aCol[STMT_COLUMN_NSTEP] = sqlite3_stmt_status( + p, SQLITE_STMTSTATUS_VM_STEP, 0 + ); + pNew->aCol[STMT_COLUMN_REPREP] = sqlite3_stmt_status( + p, SQLITE_STMTSTATUS_REPREPARE, 0 + ); + pNew->aCol[STMT_COLUMN_RUN] = sqlite3_stmt_status( + p, SQLITE_STMTSTATUS_RUN, 0 + ); + pNew->aCol[STMT_COLUMN_MEM] = sqlite3_stmt_status( + p, SQLITE_STMTSTATUS_MEMUSED, 0 + ); + pNew->iRowid = iRowid++; + *ppRow = pNew; + ppRow = &pNew->pNext; + } + + return SQLITE_OK; } /* @@ -239386,6 +255607,7 @@ static int stmtBestIndex( sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo ){ + (void)tab; pIdxInfo->estimatedCost = (double)500; pIdxInfo->estimatedRows = 500; return SQLITE_OK; @@ -239420,6 +255642,7 @@ static sqlite3_module stmtModule = { 0, /* xRelease */ 0, /* xRollbackTo */ 0, /* xShadowName */ + 0 /* xIntegrity */ }; #endif /* SQLITE_OMIT_VIRTUALTABLE */ |