diff options
| -rw-r--r-- | libs/sqlite3/src/sqlite3.c | 4720 | ||||
| -rw-r--r-- | libs/sqlite3/src/sqlite3.h | 117 |
2 files changed, 3346 insertions, 1491 deletions
diff --git a/libs/sqlite3/src/sqlite3.c b/libs/sqlite3/src/sqlite3.c index 51d5dbd0ee..2763b1b495 100644 --- a/libs/sqlite3/src/sqlite3.c +++ b/libs/sqlite3/src/sqlite3.c @@ -1,6 +1,6 @@ /****************************************************************************** ** This file is an amalgamation of many separate C source files from SQLite -** version 3.39.4. By combining all the individual C code files into this +** version 3.40.0. 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 @@ -452,9 +452,9 @@ extern "C" { ** [sqlite3_libversion_number()], [sqlite3_sourceid()], ** [sqlite_version()] and [sqlite_source_id()]. */ -#define SQLITE_VERSION "3.39.4" -#define SQLITE_VERSION_NUMBER 3039004 -#define SQLITE_SOURCE_ID "2022-09-29 15:55:41 a29f9949895322123f7c38fbe94c649a9d6e6c9cd0c3b41c96d694552f26b309" +#define SQLITE_VERSION "3.40.0" +#define SQLITE_VERSION_NUMBER 3040000 +#define SQLITE_SOURCE_ID "2022-11-16 12:10:08 89c459e766ea7e9165d0beeb124708b955a4950d0f4792f457465d71b158d318" /* ** CAPI3REF: Run-Time Library Version Numbers @@ -976,13 +976,17 @@ 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 +1064,14 @@ 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 +1176,8 @@ 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 @@ -1560,6 +1570,26 @@ 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 +1767,7 @@ 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); @@ -2615,6 +2645,7 @@ 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> @@ -3730,6 +3761,9 @@ 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 +3779,7 @@ 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 @@ -4004,10 +4038,10 @@ 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 +4070,9 @@ 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 @@ -4104,14 +4138,14 @@ 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 @@ -5814,6 +5848,16 @@ SQLITE_API SQLITE_DEPRECATED int sqlite3_memory_alarm(void(*)(void*,sqlite3_int6 ** then the conversion is performed. Otherwise no conversion occurs. ** The [SQLITE_INTEGER | datatype] after conversion is returned.)^ ** +** ^(The sqlite3_value_encoding(X) interface returns one of [SQLITE_UTF8], +** [SQLITE_UTF16BE], or [SQLITE_UTF16LE] according to the current 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). +** ** ^Within the [xUpdate] method of a [virtual table], the ** sqlite3_value_nochange(X) interface returns true if and only if ** the column corresponding to X is unchanged by the UPDATE operation @@ -5878,6 +5922,7 @@ SQLITE_API int sqlite3_value_type(sqlite3_value*); SQLITE_API int sqlite3_value_numeric_type(sqlite3_value*); SQLITE_API int sqlite3_value_nochange(sqlite3_value*); SQLITE_API int sqlite3_value_frombind(sqlite3_value*); +SQLITE_API int sqlite3_value_encoding(sqlite3_value*); /* ** CAPI3REF: Finding The Subtype Of SQL Values @@ -5931,7 +5976,7 @@ 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 @@ -6136,9 +6181,10 @@ 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 @@ -6634,7 +6680,7 @@ SQLITE_API const char *sqlite3_db_name(sqlite3 *db, int N); ** <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 @@ -6771,7 +6817,7 @@ 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. @@ -6892,6 +6938,11 @@ 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, @@ -6990,7 +7041,7 @@ 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 @@ -9285,7 +9336,7 @@ 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 @@ -9713,7 +9764,7 @@ 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 */ /* @@ -13154,7 +13205,7 @@ struct fts5_api { ** autoconf-based build */ #if defined(_HAVE_SQLITE_CONFIG_H) && !defined(SQLITECONFIG_H) -#include "config.h" +#include "sqlite_cfg.h" #define SQLITECONFIG_H 1 #endif @@ -14637,6 +14688,7 @@ 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; @@ -14702,6 +14754,7 @@ 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 @@ -14716,6 +14769,331 @@ 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 *******************************************/ /* @@ -15560,48 +15938,48 @@ typedef struct VdbeOpList VdbeOpList; #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_Goto 8 /* jump */ -#define OP_Gosub 9 /* jump */ -#define OP_InitCoroutine 10 /* jump */ -#define OP_Yield 11 /* jump */ -#define OP_MustBeInt 12 /* jump */ -#define OP_Jump 13 /* jump */ -#define OP_Once 14 /* jump */ -#define OP_If 15 /* jump */ -#define OP_IfNot 16 /* jump */ -#define OP_IsNullOrType 17 /* jump, synopsis: if typeof(r[P1]) IN (P3,5) goto P2 */ -#define OP_IfNullRow 18 /* jump, synopsis: if P1.nullRow then r[P3]=NULL, goto 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_SeekLT 20 /* jump, synopsis: key=r[P3@P4] */ -#define OP_SeekLE 21 /* jump, synopsis: key=r[P3@P4] */ -#define OP_SeekGE 22 /* jump, synopsis: key=r[P3@P4] */ -#define OP_SeekGT 23 /* jump, synopsis: key=r[P3@P4] */ -#define OP_IfNotOpen 24 /* jump, synopsis: if( !csr[P1] ) goto P2 */ -#define OP_IfNoHope 25 /* jump, synopsis: key=r[P3@P4] */ -#define OP_NoConflict 26 /* jump, synopsis: key=r[P3@P4] */ -#define OP_NotFound 27 /* jump, synopsis: key=r[P3@P4] */ -#define OP_Found 28 /* jump, synopsis: key=r[P3@P4] */ -#define OP_SeekRowid 29 /* jump, synopsis: intkey=r[P3] */ -#define OP_NotExists 30 /* jump, synopsis: intkey=r[P3] */ -#define OP_Last 31 /* jump */ -#define OP_IfSmaller 32 /* jump */ -#define OP_SorterSort 33 /* jump */ -#define OP_Sort 34 /* jump */ -#define OP_Rewind 35 /* jump */ -#define OP_SorterNext 36 /* jump */ -#define OP_Prev 37 /* jump */ -#define OP_Next 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] */ @@ -15611,12 +15989,12 @@ 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 @@ -15752,13 +16130,13 @@ typedef struct VdbeOpList VdbeOpList; #define OPFLG_OUT3 0x20 /* out3: P3 is an output */ #define OPFLG_INITIALIZER {\ /* 0 */ 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x01, 0x00,\ -/* 8 */ 0x01, 0x01, 0x01, 0x03, 0x03, 0x01, 0x01, 0x03,\ -/* 16 */ 0x03, 0x03, 0x01, 0x12, 0x09, 0x09, 0x09, 0x09,\ -/* 24 */ 0x01, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x01,\ +/* 8 */ 0x01, 0x01, 0x01, 0x01, 0x03, 0x03, 0x01, 0x01,\ +/* 16 */ 0x03, 0x03, 0x01, 0x12, 0x01, 0x09, 0x09, 0x09,\ +/* 24 */ 0x09, 0x01, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09,\ /* 32 */ 0x01, 0x01, 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,\ +/* 40 */ 0x01, 0x01, 0x01, 0x26, 0x26, 0x01, 0x23, 0x0b,\ +/* 48 */ 0x01, 0x01, 0x03, 0x03, 0x0b, 0x0b, 0x0b, 0x0b,\ +/* 56 */ 0x0b, 0x0b, 0x01, 0x03, 0x03, 0x03, 0x01, 0x01,\ /* 64 */ 0x01, 0x00, 0x00, 0x02, 0x02, 0x08, 0x00, 0x10,\ /* 72 */ 0x10, 0x10, 0x00, 0x10, 0x00, 0x10, 0x10, 0x00,\ /* 80 */ 0x00, 0x10, 0x10, 0x00, 0x00, 0x00, 0x02, 0x02,\ @@ -15850,6 +16228,7 @@ 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); @@ -15864,6 +16243,7 @@ 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*); @@ -16212,297 +16592,6 @@ 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 - -/* 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 mutex.h in the middle of sqliteInt.h *****************/ /************** Begin file mutex.h *******************************************/ /* @@ -16748,6 +16837,7 @@ struct Lookaside { #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 */ @@ -17092,6 +17182,7 @@ struct sqlite3 { #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_AllOpts 0xffffffff /* All optimizations */ /* @@ -17664,7 +17755,7 @@ 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 @@ -17881,10 +17972,22 @@ 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 @@ -17920,6 +18023,8 @@ struct 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 nSampleCol; /* Size of IndexSample.anEq[] and so on */ @@ -17928,7 +18033,7 @@ struct Index { 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 */ }; /* @@ -18196,7 +18301,7 @@ struct Expr { #define EP_Reduced 0x004000 /* Expr struct EXPR_REDUCEDSIZE bytes only */ #define EP_Win 0x008000 /* Contains window functions */ #define EP_TokenOnly 0x010000 /* Expr struct EXPR_TOKENONLYSIZE bytes only */ -#define EP_MemToken 0x020000 /* Need to sqlite3DbFree() Expr.zToken */ + /* 0x020000 // Available for reuse */ #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 */ @@ -18381,6 +18486,14 @@ struct IdList { ** 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 @@ -18420,14 +18533,14 @@ struct SrcItem { 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 (1<<N) set if column N of pTab is used */ + 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; }; @@ -18441,23 +18554,11 @@ struct OnOrUsing { }; /* -** 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. +** 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 */ @@ -18802,7 +18903,7 @@ 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, SRT_Table, and similar */ ExprList *pOrderBy; /* Key columns for SRT_Queue and SRT_DistQueue */ }; @@ -18868,6 +18969,28 @@ struct TriggerPrg { #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 */ + 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 ** should be performed after parsing to deallocation resources obtained ** during the parse and which are no longer needed. @@ -18908,7 +19031,7 @@ 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() */ @@ -18925,6 +19048,7 @@ struct Parse { int nLabelAlloc; /* Number of slots in aLabel */ int *aLabel; /* Space to hold the labels */ ExprList *pConstExpr;/* Constant expressions */ + IndexedExpr *pIdxExpr;/* List of expressions used by active indexes */ 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 */ @@ -19360,15 +19484,15 @@ 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() */ } u; }; @@ -19674,6 +19798,7 @@ 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); @@ -19694,12 +19819,16 @@ SQLITE_PRIVATE int sqlite3HeapNearlyFull(void); */ #ifdef SQLITE_USE_ALLOCA # define sqlite3StackAllocRaw(D,N) alloca(N) +# define sqlite3StackAllocRawNN(D,N) alloca(N) # define sqlite3StackAllocZero(D,N) memset(alloca(N), 0, N) # define sqlite3StackFree(D,P) +# define sqlite3StackFreeNN(D,P) #else # define sqlite3StackAllocRaw(D,N) sqlite3DbMallocRaw(D,N) +# define sqlite3StackAllocRawNN(D,N) sqlite3DbMallocRawNN(D,N) # define sqlite3StackAllocZero(D,N) sqlite3DbMallocZero(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 @@ -20198,6 +20327,7 @@ 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 i64 sqlite3RealToI64(double); SQLITE_PRIVATE void sqlite3Int64ToText(i64,char*); SQLITE_PRIVATE int sqlite3AtoF(const char *z, double*, int, u8); SQLITE_PRIVATE int sqlite3GetInt32(const char *, int*); @@ -20243,6 +20373,7 @@ 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); @@ -20314,7 +20445,6 @@ 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; @@ -20758,6 +20888,10 @@ 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 + #endif /* SQLITEINT_H */ /************** End of sqliteInt.h *******************************************/ @@ -20989,7 +21123,7 @@ 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 @@ -21154,6 +21288,9 @@ 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 @@ -21644,9 +21781,6 @@ 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 @@ -22126,10 +22260,6 @@ 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[] = { @@ -22140,14 +22270,6 @@ 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", @@ -22599,7 +22721,7 @@ 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[] */ int nMem; /* Number of memory locations currently allocated */ @@ -23157,6 +23279,8 @@ 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) ){ @@ -23182,6 +23306,7 @@ SQLITE_API int sqlite3_db_status( } } db->pnBytesFreed = 0; + db->lookaside.pEnd = db->lookaside.pTrueEnd; sqlite3BtreeLeaveAll(db); *pHighwater = 0; @@ -23199,9 +23324,12 @@ 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){ + 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 */ @@ -23537,7 +23665,7 @@ 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; @@ -24046,7 +24174,7 @@ 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; @@ -24727,9 +24855,11 @@ 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){ @@ -24844,6 +24974,7 @@ 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; @@ -29063,17 +29194,33 @@ 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. +** Parnoid 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); @@ -29109,7 +29256,7 @@ 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 @@ -29133,18 +29280,16 @@ 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) ); @@ -29200,14 +29345,11 @@ 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 @@ -29218,6 +29360,7 @@ 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 @@ -29226,6 +29369,10 @@ 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)) ); @@ -29233,6 +29380,43 @@ 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); @@ -32344,16 +32528,41 @@ SQLITE_PRIVATE void sqlite3ShowWinFunc(const Window *p){ sqlite3TreeViewWinFunc( ** 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 @@ -32383,53 +32592,46 @@ 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); - } - 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; + sqlite3OsRandomness(pVfs, 44, (char*)&wsdPrng.s[4]); } - 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); } @@ -35287,48 +35489,48 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){ /* 5 */ "Vacuum" OpHelp(""), /* 6 */ "VFilter" OpHelp("iplan=r[P3] zplan='P4'"), /* 7 */ "VUpdate" OpHelp("data=r[P3@P2]"), - /* 8 */ "Goto" OpHelp(""), - /* 9 */ "Gosub" OpHelp(""), - /* 10 */ "InitCoroutine" OpHelp(""), - /* 11 */ "Yield" OpHelp(""), - /* 12 */ "MustBeInt" OpHelp(""), - /* 13 */ "Jump" OpHelp(""), - /* 14 */ "Once" OpHelp(""), - /* 15 */ "If" OpHelp(""), - /* 16 */ "IfNot" OpHelp(""), - /* 17 */ "IsNullOrType" OpHelp("if typeof(r[P1]) IN (P3,5) goto P2"), - /* 18 */ "IfNullRow" OpHelp("if P1.nullRow then r[P3]=NULL, goto 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 */ "SeekLT" OpHelp("key=r[P3@P4]"), - /* 21 */ "SeekLE" OpHelp("key=r[P3@P4]"), - /* 22 */ "SeekGE" OpHelp("key=r[P3@P4]"), - /* 23 */ "SeekGT" OpHelp("key=r[P3@P4]"), - /* 24 */ "IfNotOpen" OpHelp("if( !csr[P1] ) goto P2"), - /* 25 */ "IfNoHope" OpHelp("key=r[P3@P4]"), - /* 26 */ "NoConflict" OpHelp("key=r[P3@P4]"), - /* 27 */ "NotFound" OpHelp("key=r[P3@P4]"), - /* 28 */ "Found" OpHelp("key=r[P3@P4]"), - /* 29 */ "SeekRowid" OpHelp("intkey=r[P3]"), - /* 30 */ "NotExists" OpHelp("intkey=r[P3]"), - /* 31 */ "Last" OpHelp(""), - /* 32 */ "IfSmaller" OpHelp(""), - /* 33 */ "SorterSort" OpHelp(""), - /* 34 */ "Sort" OpHelp(""), - /* 35 */ "Rewind" OpHelp(""), - /* 36 */ "SorterNext" OpHelp(""), - /* 37 */ "Prev" OpHelp(""), - /* 38 */ "Next" 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]"), @@ -35338,12 +35540,12 @@ 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(""), @@ -35472,6 +35674,981 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int 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 */ +}; + +/* +** 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; + c = aIn[i]; + if( c==0 ) break; + }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); + 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[133073]; + 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, sizeof(aData)-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], sizeof(aData)-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[131073]; + 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->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 @@ -35562,13 +36739,13 @@ 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 # include <sys/mman.h> @@ -43533,8 +44710,16 @@ 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 @@ -48304,9 +49489,10 @@ static int winMakeEndInDirSep(int nBuf, char *zBuf){ } /* -** If sqlite3_temp_directory is not, take the mutex and return true. +** If sqlite3_temp_directory is defined, take the mutex and return true. ** -** If sqlite3_temp_directory is NULL, omit the mutex and return false. +** 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)); @@ -49342,7 +50528,8 @@ static int winFullPathname( char *zFull /* Output buffer */ ){ int rc; - sqlite3_mutex *pMutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_TEMPDIR); + 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); @@ -51136,12 +52323,20 @@ 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; + 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(" 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; @@ -51150,22 +52345,33 @@ struct PCache { 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( ((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. +*/ +#ifdef SQLITE_DEBUG +static int pageOnDirtyList(PCache *pCache, PgHdr *pPg){ + PgHdr *p; + for(p=pCache->pDirty; p; p=p->pDirtyNext){ + if( p==pPg ) return 1; + } + return 0; +} +#endif + +/* ** Check invariants on a PgHdr entry. Return true if everything is OK. ** Return false if any invariant is violated. ** @@ -51183,8 +52389,13 @@ 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( !pageOnDirtyList(pCache, pPg) );/* CLEAN pages not on dirty list */ + }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 ){ @@ -51458,8 +52669,9 @@ 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; } @@ -51587,6 +52799,7 @@ SQLITE_PRIVATE void SQLITE_NOINLINE sqlite3PcacheRelease(PgHdr *p){ pcacheUnpin(p); }else{ pcacheManageDirtyList(p, PCACHE_DIRTYLIST_FRONT); + assert( sqlite3PcachePageSanity(p) ); } } } @@ -51630,6 +52843,7 @@ 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) ); } @@ -52007,12 +53221,13 @@ 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. @@ -52057,30 +53272,40 @@ 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. +** +** 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. ** -** Note: Variables isBulkLocal and isAnchor were once type "u8". That works, +** 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. +** 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 */ }; /* @@ -52406,25 +53631,13 @@ 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; @@ -52448,9 +53661,6 @@ static void pcache1FreePage(PgHdr1 *p){ pCache->pFree = p; }else{ pcache1Free(p->page.pBuf); -#ifdef SQLITE_PCACHE_SEPARATE_HEADER - sqlite3_free(p); -#endif } (*pCache->pnPurgeable)--; } @@ -53217,9 +54427,6 @@ 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); @@ -59708,6 +60915,7 @@ 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; @@ -61299,7 +62507,7 @@ SQLITE_PRIVATE int sqlite3PagerGetJournalMode(Pager *pPager){ SQLITE_PRIVATE int sqlite3PagerOkToChangeJournalMode(Pager *pPager){ assert( assert_pager_state(pPager) ); if( pPager->eState>=PAGER_WRITER_CACHEMOD ) return 0; - if( isOpen(pPager->jfd) && pPager->journalOff>0 ) return 0; + if( NEVER(isOpen(pPager->jfd) && pPager->journalOff>0) ) return 0; return 1; } @@ -66807,6 +68015,7 @@ 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; @@ -68379,8 +69588,7 @@ 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; @@ -68434,39 +69642,38 @@ 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[iCellStart], &data[iCellStart], usableSize - iCellStart); + 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<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); + 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); @@ -68523,7 +69730,6 @@ 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 */ @@ -68539,9 +69745,9 @@ static u8 *pageFindSlot(MemPage *pPg, int nByte, int *pRc){ iAddr = pc; pTmp = &aData[pc]; pc = get2byte(pTmp); - if( pc<=iAddr+size ){ + 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; @@ -68693,7 +69899,7 @@ 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); } @@ -69175,9 +70381,7 @@ getAndInitPage_error1: pCur->pPage = pCur->apPage[pCur->iPage]; } testcase( pgno==0 ); - assert( pgno!=0 || rc==SQLITE_CORRUPT - || rc==SQLITE_IOERR_NOMEM - || rc==SQLITE_NOMEM ); + assert( pgno!=0 || rc!=SQLITE_OK ); return rc; } @@ -70613,6 +71817,9 @@ 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; @@ -72119,8 +73326,6 @@ SQLITE_PRIVATE const void *sqlite3BtreePayloadFetch(BtCursor *pCur, u32 *pAmt){ ** vice-versa). */ static int moveToChild(BtCursor *pCur, u32 newPgno){ - BtShared *pBt = pCur->pBt; - assert( cursorOwnsBtShared(pCur) ); assert( pCur->eState==CURSOR_VALID ); assert( pCur->iPage<BTCURSOR_MAX_DEPTH ); @@ -72134,7 +73339,8 @@ 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); + return getAndInitPage(pCur->pBt, newPgno, &pCur->pPage, pCur, + pCur->curPagerFlags); } #ifdef SQLITE_DEBUG @@ -72240,7 +73446,7 @@ static int moveToRoot(BtCursor *pCur){ } sqlite3BtreeClearCursor(pCur); } - rc = getAndInitPage(pCur->pBtree->pBt, pCur->pgnoRoot, &pCur->pPage, + rc = getAndInitPage(pCur->pBt, pCur->pgnoRoot, &pCur->pPage, 0, pCur->curPagerFlags); if( rc!=SQLITE_OK ){ pCur->eState = CURSOR_INVALID; @@ -72948,14 +74154,7 @@ 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( NEVER(!pPage->isInit) || sqlite3FaultSim(412) ){ return SQLITE_CORRUPT_BKPT; } @@ -73131,8 +74330,8 @@ 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 ){ @@ -73881,12 +75080,6 @@ 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 ){ @@ -75651,6 +76844,11 @@ 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]; @@ -79494,6 +80692,16 @@ 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<=(double)SMALLEST_INT64 ) return SMALLEST_INT64; + if( r>=(double)LARGEST_INT64) return LARGEST_INT64; + return (i64)r; +} + /* ** Convert pMem so that it has type MEM_Real or MEM_Int. ** Invalidate any prior representations. @@ -79515,7 +80723,7 @@ 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); @@ -79567,6 +80775,7 @@ SQLITE_PRIVATE int sqlite3VdbeMemCast(Mem *pMem, u8 aff, u8 encoding){ 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); + if( encoding!=SQLITE_UTF8 ) pMem->n &= ~1; return sqlite3VdbeChangeEncoding(pMem, encoding); } } @@ -80702,6 +81911,9 @@ 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; @@ -80747,10 +81959,10 @@ 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; assert( p->eVdbeState==VDBE_INIT_STATE ); p->pParse = pParse; @@ -80832,21 +82044,28 @@ 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; @@ -81167,7 +82386,7 @@ SQLITE_PRIVATE void sqlite3VdbeExplain(Parse *pParse, u8 bPush, const char *zFmt iThis = v->nOp; 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; } @@ -81525,8 +82744,8 @@ static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){ p->readOnly = 1; p->bIsReader = 0; pOp = &p->aOp[p->nOp-1]; - while(1){ - + assert( p->aOp[0].opcode==OP_Init ); + while( 1 /* Loop termates 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 @@ -81555,6 +82774,10 @@ static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){ p->bIsReader = 1; break; } + case OP_Init: { + assert( pOp->p2>=0 ); + goto resolve_p2_values_loop_exit; + } #ifndef SQLITE_OMIT_VIRTUALTABLE case OP_VUpdate: { if( pOp->p2>nMaxArgs ) nMaxArgs = pOp->p2; @@ -81587,11 +82810,12 @@ 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--; } +resolve_p2_values_loop_exit: if( aLabel ){ - sqlite3DbFreeNN(p->db, pParse->aLabel); + sqlite3DbNNFreeNN(p->db, pParse->aLabel); pParse->aLabel = 0; } pParse->nLabel = 0; @@ -81840,15 +83064,19 @@ 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){ @@ -81857,6 +83085,18 @@ 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. */ @@ -81884,7 +83124,7 @@ 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{ @@ -81898,8 +83138,9 @@ SQLITE_PRIVATE void sqlite3VdbeJumpHereOrPopInst(Vdbe *p, int addr){ ** the FuncDef is not ephermal, 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); } } @@ -81908,11 +83149,12 @@ 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 ); @@ -81925,7 +83167,7 @@ static void freeP4(sqlite3 *db, int p4type, void *p4){ case P4_INT64: case P4_DYNAMIC: case P4_INTARRAY: { - sqlite3DbFree(db, p4); + if( p4 ) sqlite3DbNNFreeNN(db, p4); break; } case P4_KEYINFO: { @@ -81964,6 +83206,7 @@ static void freeP4(sqlite3 *db, int p4type, void *p4){ */ static void vdbeFreeOpArray(sqlite3 *db, Op *aOp, int nOp){ assert( nOp>=0 ); + assert( db!=0 ); if( aOp ){ Op *pOp = &aOp[nOp-1]; while(1){ /* Exit via break */ @@ -81974,7 +83217,7 @@ static void vdbeFreeOpArray(sqlite3 *db, Op *aOp, int nOp){ if( pOp==aOp ) break; pOp--; } - sqlite3DbFreeNN(db, aOp); + sqlite3DbNNFreeNN(db, aOp); } } @@ -82205,13 +83448,13 @@ 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 @@ -82227,9 +83470,6 @@ SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetOp(Vdbe *p, int addr){ ** zeros, which is correct. MSVC generates a warning, nevertheless. */ static VdbeOp dummy; /* Ignore the MSVC warning about no initializer */ assert( p->eVdbeState==VDBE_INIT_STATE ); - if( addr<0 ){ - addr = p->nOp - 1; - } assert( (addr>=0 && addr<p->nOp) || p->db->mallocFailed ); if( p->db->mallocFailed ){ return (VdbeOp*)&dummy; @@ -82238,6 +83478,12 @@ SQLITE_PRIVATE VdbeOp *sqlite3VdbeGetOp(Vdbe *p, int addr){ } } +/* Return the most recently added opcode +*/ +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 @@ -82725,7 +83971,7 @@ static void releaseMemArray(Mem *p, int N){ 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; } @@ -83717,7 +84963,7 @@ 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 ); @@ -84246,10 +85492,11 @@ SQLITE_PRIVATE void sqlite3VdbeDeleteAuxData(sqlite3 *db, AuxData **pp, int iOp, */ static void sqlite3VdbeClearObject(sqlite3 *db, Vdbe *p){ SubProgram *pSub, *pNext; + assert( db!=0 ); assert( p->db==0 || p->db==db ); if( p->aColName ){ releaseMemArray(p->aColName, p->nResColumn*COLNAME_N); - sqlite3DbFreeNN(db, p->aColName); + sqlite3DbNNFreeNN(db, p->aColName); } for(pSub=p->pProgram; pSub; pSub=pNext){ pNext = pSub->pNext; @@ -84258,11 +85505,11 @@ static void sqlite3VdbeClearObject(sqlite3 *db, Vdbe *p){ } if( p->eVdbeState!=VDBE_INIT_STATE ){ releaseMemArray(p->aVar, p->nVar); - if( p->pVList ) sqlite3DbFreeNN(db, p->pVList); - if( p->pFree ) sqlite3DbFreeNN(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->zSql); + if( p->zSql ) sqlite3DbNNFreeNN(db, p->zSql); #ifdef SQLITE_ENABLE_NORMALIZE sqlite3DbFree(db, p->zNormSql); { @@ -84292,20 +85539,17 @@ 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( db->pnBytesFreed==0 ){ - 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; + assert( p->ppVPrev!=0 ); + *p->ppVPrev = p->pVNext; + if( p->pVNext ){ + p->pVNext->ppVPrev = p->ppVPrev; } } - sqlite3DbFreeNN(db, p); + sqlite3DbNNFreeNN(db, p); } /* @@ -85260,7 +86504,7 @@ 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 */ @@ -85270,7 +86514,7 @@ 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 ){ @@ -85295,7 +86539,7 @@ SQLITE_PRIVATE int sqlite3VdbeRecordCompareWithSkip( ** 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; + rc = serial_type==10 ? -1 : +1; }else if( serial_type==0 ){ rc = -1; }else{ @@ -85376,7 +86620,7 @@ 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 ){ @@ -85398,8 +86642,13 @@ 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 @@ -85800,7 +87049,7 @@ 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; } } @@ -85921,13 +87170,14 @@ 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 ) sqlite3VdbeMemReleaseMalloc(pMem); } - sqlite3DbFreeNN(db, p); + sqlite3DbNNFreeNN(db, p); } } #endif /* SQLITE_ENABLE_PREUPDATE_HOOK */ @@ -85998,7 +87248,7 @@ 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 */ @@ -86115,7 +87365,9 @@ 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); } @@ -86323,6 +87575,9 @@ 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){ @@ -87437,7 +88692,7 @@ 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; @@ -87450,12 +88705,11 @@ static int vdbeUnbind(Vdbe *p, int i){ "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; @@ -87492,7 +88746,7 @@ 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]; @@ -87541,7 +88795,7 @@ 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); @@ -87554,7 +88808,7 @@ 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); @@ -87564,7 +88818,7 @@ 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); } @@ -87579,7 +88833,7 @@ 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); @@ -87657,7 +88911,7 @@ 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); @@ -87817,7 +89071,7 @@ 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; @@ -87842,8 +89096,11 @@ SQLITE_API int sqlite3_stmt_status(sqlite3_stmt *pStmt, int op, int resetFlag){ sqlite3_mutex_enter(db->mutex); v = 0; db->pnBytesFreed = (int*)&v; + 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]; @@ -88683,7 +89940,8 @@ 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; @@ -88845,17 +90103,18 @@ 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; } @@ -90100,7 +91359,6 @@ 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 */ @@ -90109,12 +91367,12 @@ 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 ){ @@ -90136,9 +91394,12 @@ 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); @@ -90953,19 +92214,90 @@ 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. +** +** 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; } @@ -91008,11 +92340,14 @@ 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( ALWAYS(pC) && pC->nullRow ){ sqlite3VdbeMemSetNull(aMem + pOp->p3); goto jump_to_p2; } @@ -91063,7 +92398,7 @@ case OP_Offset: { /* out3 */ ** 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. @@ -91072,10 +92407,12 @@ 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: { u32 p2; /* column number to retrieve */ @@ -93014,7 +94351,13 @@ 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); @@ -93077,7 +94420,7 @@ 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 @@ -93087,8 +94430,8 @@ 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 @@ -93098,29 +94441,51 @@ 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 constraing. 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 initally 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: { @@ -93131,14 +94496,25 @@ 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]; @@ -93172,8 +94548,9 @@ 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); @@ -93183,7 +94560,8 @@ 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); @@ -93259,12 +94637,16 @@ 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; @@ -94455,7 +95837,9 @@ case OP_SorterNext: { /* jump */ case OP_Prev: /* jump */ 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 ); @@ -94468,7 +95852,9 @@ case OP_Prev: /* jump */ case OP_Next: /* jump */ 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 ); @@ -94675,10 +96061,10 @@ 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. */ @@ -95580,7 +96966,7 @@ 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 @@ -101178,6 +102564,8 @@ 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 @@ -101619,9 +103007,7 @@ static void resolveAlias( pExpr->y.pWin->pOwner = pExpr; } } - sqlite3ParserAddCleanup(pParse, - (void(*)(sqlite3*,void*))sqlite3ExprDelete, - pDup); + sqlite3ExprDeferredDelete(pParse, pDup); } } @@ -103715,9 +105101,8 @@ SQLITE_PRIVATE char sqlite3ExprAffinity(const Expr *pExpr){ if( op==TK_REGISTER ) op = pExpr->op2; if( op==TK_COLUMN || op==TK_AGG_COLUMN ){ assert( ExprUseYTab(pExpr) ); - if( pExpr->y.pTab ){ - return sqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn); - } + assert( pExpr->y.pTab!=0 ); + return sqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn); } if( op==TK_SELECT ){ assert( ExprUseXSelect(pExpr) ); @@ -103835,17 +105220,14 @@ SQLITE_PRIVATE CollSeq *sqlite3ExprCollSeq(Parse *pParse, const Expr *pExpr){ int op = p->op; if( op==TK_REGISTER ) op = p->op2; if( op==TK_AGG_COLUMN || 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; @@ -104430,7 +105812,9 @@ 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 ){ @@ -104573,15 +105957,26 @@ 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); } } @@ -104867,6 +106262,7 @@ 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 ); @@ -104898,12 +106294,8 @@ 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){ @@ -104934,8 +106326,9 @@ SQLITE_PRIVATE void sqlite3ClearOnOrUsing(sqlite3 *db, OnOrUsing *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, + (void(*)(sqlite3*,void*))sqlite3ExprDelete, + pExpr); } /* Invoke sqlite3RenameExprUnmap() and sqlite3ExprDelete() on the @@ -105009,7 +106402,6 @@ static int dupedExprStructSize(const Expr *p, int flags){ }else{ assert( !ExprHasProperty(p, EP_TokenOnly|EP_Reduced) ); assert( !ExprHasProperty(p, EP_OuterON) ); - assert( !ExprHasProperty(p, EP_MemToken) ); assert( !ExprHasVVAProperty(p, EP_NoReduce) ); if( p->pLeft || p->x.pList ){ nSize = EXPR_REDUCEDSIZE | EP_Reduced; @@ -105113,7 +106505,7 @@ static Expr *exprDup(sqlite3 *db, const Expr *p, int dupFlags, u8 **pzBuffer){ } /* 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); @@ -105689,12 +107081,13 @@ 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); @@ -106872,6 +108265,7 @@ 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) ); @@ -106985,7 +108379,7 @@ 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 */ @@ -107438,10 +108832,7 @@ SQLITE_PRIVATE void sqlite3ExprCodeGetColumnOfTable( ){ Column *pCol; assert( v!=0 ); - if( pTab==0 ){ - sqlite3VdbeAddOp3(v, OP_Column, iTabCur, iCol, regOut); - return; - } + assert( pTab!=0 ); if( iCol<0 || iCol==pTab->iPKey ){ sqlite3VdbeAddOp2(v, OP_Rowid, iTabCur, regOut); VdbeComment((v, "%s.rowid", pTab->zName)); @@ -107499,7 +108890,7 @@ SQLITE_PRIVATE int sqlite3ExprCodeGetColumn( assert( pParse->pVdbe!=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; } return iReg; @@ -107568,7 +108959,7 @@ 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 ){ + if( sqlite3VdbeGetLastOp(v)->opcode==OP_Copy ){ sqlite3VdbeChangeP5(v, 1); /* Tag trailing OP_Copy as not mergable */ } } @@ -107691,6 +109082,53 @@ static int exprCodeInlineFunction( return target; } +/* +** Check to see if pExpr is one of the indexed expressions on pParse->pIdxExpr. +** 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->pIdxExpr; p; p=p->pIENext){ + 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; + 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->pIdxExpr; + pParse->pIdxExpr = 0; + sqlite3ExprCode(pParse, pExpr, target); + pParse->pIdxExpr = 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 */ +} + /* ** Generate code into the current Vdbe to evaluate the given @@ -107719,6 +109157,11 @@ SQLITE_PRIVATE int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target) expr_code_doover: if( pExpr==0 ){ op = TK_NULL; + }else if( pParse->pIdxExpr!=0 + && !ExprHasProperty(pExpr, EP_Leaf) + && (r1 = sqlite3IndexedExprLookup(pParse, pExpr, target))>=0 + ){ + return r1; }else{ assert( !ExprHasVVAProperty(pExpr,EP_Immutable) ); op = pExpr->op; @@ -107739,7 +109182,7 @@ expr_code_doover: pCol->iSorterColumn, target); if( pCol->iColumn<0 ){ VdbeComment((v,"%s.rowid",pTab->zName)); - }else{ + }else if( ALWAYS(pTab!=0) ){ VdbeComment((v,"%s.%s", pTab->zName, pTab->aCol[pCol->iColumn].zCnName)); if( pTab->aCol[pCol->iColumn].affinity==SQLITE_AFF_REAL ){ @@ -107764,11 +109207,8 @@ expr_code_doover: 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"; assert( SQLITE_AFF_BLOB=='A' ); @@ -107830,12 +109270,10 @@ expr_code_doover: } } 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: { @@ -108334,6 +109772,21 @@ expr_code_doover: case TK_IF_NULL_ROW: { int addrINR; u8 okConstFactor = pParse->okConstFactor; + AggInfo *pAggInfo = pExpr->pAggInfo; + if( pAggInfo ){ + assert( pExpr->iAgg>=0 && pExpr->iAgg<pAggInfo->nColumn ); + if( !pAggInfo->directMode ){ + inReg = pAggInfo->aCol[pExpr->iAgg].iMem; + break; + } + if( pExpr->pAggInfo->useSortingIdx ){ + sqlite3VdbeAddOp3(v, OP_Column, pAggInfo->sortingIdxPTab, + pAggInfo->aCol[pExpr->iAgg].iSorterColumn, + target); + inReg = target; + break; + } + } 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 @@ -108675,7 +110128,7 @@ 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 */ @@ -108874,6 +110327,7 @@ 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); @@ -109048,6 +110502,7 @@ 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); @@ -109201,7 +110656,13 @@ 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) ); @@ -109503,10 +110964,10 @@ 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; @@ -109711,6 +111172,7 @@ 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; @@ -109727,7 +111189,7 @@ SQLITE_PRIVATE int sqlite3ReferencesSrcList(Parse *pParse, Expr *pExpr, SrcList 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 ){ @@ -109758,8 +111220,8 @@ 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 ){ + if( pExpr->op!=TK_AGG_FUNCTION ){ + assert( pExpr->op==TK_AGG_COLUMN || pExpr->op==TK_IF_NULL_ROW ); assert( iAgg>=0 && iAgg<pAggInfo->nColumn ); if( pAggInfo->aCol[iAgg].pCExpr==pExpr ){ pExpr = sqlite3ExprDup(db, pExpr, 0); @@ -109769,6 +111231,7 @@ static int agginfoPersistExprCb(Walker *pWalker, Expr *pExpr){ } } }else{ + assert( pExpr->op==TK_AGG_FUNCTION ); assert( iAgg>=0 && iAgg<pAggInfo->nFunc ); if( pAggInfo->aFunc[iAgg].pFExpr==pExpr ){ pExpr = sqlite3ExprDup(db, pExpr, 0); @@ -109839,10 +111302,12 @@ static int analyzeAggregate(Walker *pWalker, Expr *pExpr){ assert( pNC->ncFlags & NC_UAggInfo ); switch( pExpr->op ){ + 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) ){ @@ -109860,8 +111325,10 @@ static int analyzeAggregate(Walker *pWalker, Expr *pExpr){ int k; pCol = pAggInfo->aCol; for(k=0; k<pAggInfo->nColumn; k++, pCol++){ - if( pCol->iTable==pExpr->iTable && - pCol->iColumn==pExpr->iColumn ){ + if( pCol->iTable==pExpr->iTable + && pCol->iColumn==pExpr->iColumn + && pExpr->op!=TK_IF_NULL_ROW + ){ break; } } @@ -109876,15 +111343,17 @@ static int analyzeAggregate(Walker *pWalker, Expr *pExpr){ pCol->iMem = ++pParse->nMem; pCol->iSorterColumn = -1; pCol->pCExpr = pExpr; - if( pAggInfo->pGroupBy ){ + 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 ){ + if( pE->op==TK_COLUMN + && pE->iTable==pExpr->iTable + && pE->iColumn==pExpr->iColumn + ){ pCol->iSorterColumn = j; break; } @@ -109901,7 +111370,9 @@ static int analyzeAggregate(Walker *pWalker, Expr *pExpr){ */ ExprSetVVAProperty(pExpr, EP_NoReduce); pExpr->pAggInfo = pAggInfo; - pExpr->op = TK_AGG_COLUMN; + if( pExpr->op==TK_COLUMN ){ + pExpr->op = TK_AGG_COLUMN; + } pExpr->iAgg = (i16)k; break; } /* endif pExpr->iTable==pItem->iCursor */ @@ -113321,6 +114792,7 @@ 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)); @@ -115323,6 +116795,7 @@ 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; @@ -115352,7 +116825,6 @@ SQLITE_PRIVATE void sqlite3FinishCoding(Parse *pParse){ if( pParse->bReturning ){ Returning *pReturning = pParse->u1.pReturning; int addrRewind; - int i; int reg; if( pReturning->nRetCol ){ @@ -115389,76 +116861,69 @@ 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); - 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 ); + 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); + /* 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); - /* Initialize any AUTOINCREMENT data structures required. - */ - sqlite3AutoincrementBegin(pParse); + /* Initialize any AUTOINCREMENT data structures required. + */ + 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 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; + sqlite3ExprCode(pParse, pEL->a[i].pExpr, iReg); } + } - if( pParse->bReturning ){ - Returning *pRet = pParse->u1.pReturning; - if( pRet->nRetCol ){ - 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 @@ -115643,7 +117108,7 @@ 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); @@ -115656,7 +117121,7 @@ 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; } @@ -115965,16 +117430,17 @@ 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) ){ @@ -116011,7 +117477,8 @@ 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 @@ -116021,7 +117488,7 @@ 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 @@ -116058,8 +117525,9 @@ 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); } @@ -117463,7 +118931,8 @@ 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. ** @@ -117491,7 +118960,7 @@ static void recomputeColumnsNotIndexed(Index *pIdx){ } } pIdx->colNotIdxed = ~m; - assert( (pIdx->colNotIdxed>>63)==1 ); + assert( (pIdx->colNotIdxed>>63)==1 ); /* See note-20221022-a */ } /* @@ -118232,7 +119701,7 @@ 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 */ @@ -118257,9 +119726,10 @@ 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 @@ -118355,6 +119825,11 @@ 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 @@ -119220,7 +120695,7 @@ 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; } @@ -119373,6 +120848,7 @@ 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 ); @@ -119384,6 +120860,7 @@ SQLITE_PRIVATE void sqlite3CreateIndex( } if( pTab->aCol[j].colFlags & COLFLAG_VIRTUAL ){ pIndex->bHasVCol = 1; + pIndex->bHasExpr = 1; } } pIndex->aiColumn[i] = (i16)j; @@ -119873,12 +121350,13 @@ 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); } - sqlite3DbFreeNN(db, pList); + sqlite3DbNNFreeNN(db, pList); } /* @@ -120081,11 +121559,12 @@ 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); @@ -120096,7 +121575,7 @@ SQLITE_PRIVATE void sqlite3SrcListDelete(sqlite3 *db, SrcList *pList){ sqlite3ExprDelete(db, pItem->u3.pOn); } } - sqlite3DbFreeNN(db, pList); + sqlite3DbNNFreeNN(db, pList); } /* @@ -121348,19 +122827,21 @@ 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); @@ -121459,18 +122940,42 @@ 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; @@ -121482,9 +122987,11 @@ 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){ if( tabIsReadOnly(pParse, pTab) ){ @@ -121845,9 +123352,10 @@ 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 @@ -122047,7 +123555,7 @@ 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 @@ -123130,7 +124638,7 @@ 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 ){ @@ -123213,7 +124721,13 @@ 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, '['); + } } /* @@ -123221,7 +124735,13 @@ 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); + } } /* @@ -126215,11 +127735,12 @@ 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{ @@ -126349,6 +127870,7 @@ SQLITE_PRIVATE const char *sqlite3IndexAffinityStr(sqlite3 *db, Index *pIdx){ aff = SQLITE_AFF_INTEGER; }else{ assert( x==XN_EXPR ); + assert( pIdx->bHasExpr ); assert( pIdx->aColExpr!=0 ); aff = sqlite3ExprAffinity(pIdx->aColExpr->a[n].pExpr); } @@ -126363,6 +127885,28 @@ SQLITE_PRIVATE const char *sqlite3IndexAffinityStr(sqlite3 *db, Index *pIdx){ } /* +** 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; + } + } + do{ + zColAff[j--] = 0; + }while( j>=0 && zColAff[j]<=SQLITE_AFF_BLOB ); + } + return zColAff; +} + +/* ** Make changes to the evolving bytecode to do affinity transformations ** of values that are about to be gathered into a row for table pTab. ** @@ -126403,7 +127947,7 @@ 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 ){ @@ -126412,7 +127956,7 @@ 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; @@ -126426,22 +127970,11 @@ 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 ); @@ -126450,7 +127983,7 @@ 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); } @@ -126536,7 +128069,7 @@ 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 @@ -127442,7 +128975,12 @@ 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); + } } } @@ -127579,7 +129117,9 @@ 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 @@ -127663,7 +129203,7 @@ 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 @@ -129890,9 +131430,9 @@ 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*); @@ -129916,6 +131456,8 @@ struct sqlite3_api_routines { 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*); }; /* @@ -130240,6 +131782,8 @@ typedef int (*sqlite3_loadext_entry)( #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 #endif /* !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) */ #if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) @@ -130752,7 +132296,9 @@ static const sqlite3_api_routines sqlite3Apis = { 0, 0, #endif - sqlite3_db_name + sqlite3_db_name, + /* Version 3.40.0 and later */ + sqlite3_value_type }; /* True if x is the directory separator character @@ -133552,15 +135098,24 @@ 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( 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. @@ -133574,52 +135129,157 @@ 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. + */ + mxCol = pTab->nCol-1; + while( mxCol>=0 + && ((pTab->aCol[mxCol].colFlags & COLFLAG_VIRTUAL)!=0 + || pTab->iPKey==mxCol) ) mxCol--; + if( mxCol>=0 ){ + sqlite3ExprCodeGetColumnOfTable(v, pTab, 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 jmp2 = sqlite3VdbeAddOp4Int(v, OP_IsType, p1, labelOk, p3, p4); + sqlite3VdbeChangeP5(v, 0x0f); + 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); }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 ){ @@ -133707,6 +135367,9 @@ SQLITE_PRIVATE void sqlite3Pragma( integrityCheckResultRow(v); sqlite3VdbeJumpHere(v, addr); } + if( pPk ){ + sqlite3ReleaseTempRange(pParse, r2, pPk->nKeyCol); + } } } } @@ -133857,6 +135520,11 @@ 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[] = { @@ -135105,15 +136773,15 @@ 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); } @@ -135236,7 +136904,7 @@ 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 @@ -135277,7 +136945,9 @@ 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; @@ -135672,6 +137342,7 @@ 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); @@ -135691,7 +137362,7 @@ 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; } @@ -136882,6 +138553,9 @@ static void selectInnerLoop( testcase( eDest==SRT_Fifo ); testcase( eDest==SRT_DistFifo ); sqlite3VdbeAddOp3(v, OP_MakeRecord, regResult, nResultCol, r1+nPrefixReg); + if( pDest->zAffSdst ){ + sqlite3VdbeChangeP4(v, -1, pDest->zAffSdst, nResultCol); + } #ifndef SQLITE_OMIT_CTE if( eDest==SRT_DistFifo ){ /* If the destination is DistFifo, then cursor (iParm+1) is open @@ -137097,9 +138771,10 @@ 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); } } @@ -137419,9 +139094,6 @@ 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 @@ -139287,8 +140959,8 @@ static int multiSelectOrderBy( */ sqlite3VdbeResolveLabel(v, labelEnd); - /* Reassemble 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 ){ sqlite3ParserAddCleanup(pParse, (void(*)(sqlite3*,void*))sqlite3SelectDelete, pSplit->pPrior); @@ -139321,7 +140993,7 @@ static int multiSelectOrderBy( ** 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 integer constant. Even though the table +** 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 @@ -139347,6 +141019,7 @@ typedef struct SubstContext { int iNewTable; /* New table number */ 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 */ @@ -139388,9 +141061,10 @@ static Expr *substExpr( #endif { Expr *pNew; - Expr *pCopy = pSubst->pEList->a[pExpr->iColumn].pExpr; + int iColumn = pExpr->iColumn; + Expr *pCopy = pSubst->pEList->a[iColumn].pExpr; Expr ifNullRow; - assert( pSubst->pEList!=0 && pExpr->iColumn<pSubst->pEList->nExpr ); + assert( pSubst->pEList!=0 && iColumn<pSubst->pEList->nExpr ); assert( pExpr->pRight==0 ); if( sqlite3ExprIsVector(pCopy) ){ sqlite3VectorErrorMsg(pSubst->pParse, pCopy); @@ -139401,6 +141075,7 @@ static Expr *substExpr( ifNullRow.op = TK_IF_NULL_ROW; ifNullRow.pLeft = pCopy; ifNullRow.iTable = pSubst->iNewTable; + ifNullRow.iColumn = -99; ifNullRow.flags = EP_IfNullRow; pCopy = &ifNullRow; } @@ -139427,11 +141102,16 @@ static Expr *substExpr( /* 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); } @@ -139624,6 +141304,18 @@ 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; +} + #if !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) /* ** This routine attempts to flatten subqueries as a performance optimization. @@ -139668,7 +141360,8 @@ 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. ** @@ -139725,6 +141418,8 @@ static void renumberCursors( ** (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, @@ -139776,19 +141471,13 @@ static void renumberCursors( ** 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. This must be the -** the case if: -** (27a) the subquery is not compound query, and +** 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. ** -** (29) Either the subquery is not the right-hand operand of a join with an -** ON or USING clause nor the right-hand operand of a NATURAL JOIN, or -** the right-most table within the FROM clause of the subquery -** is not part of an outer join. -** ** ** 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 @@ -139880,16 +141569,10 @@ 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|JT_LTORJ))!=0 ){ if( pSubSrc->nSrc>1 /* (3a) */ - || isAgg /* (3c) */ || IsVirtual(pSubSrc->a[0].pTab) /* (3b) */ || (p->selFlags & SF_Distinct)!=0 /* (3d) */ || (pSubitem->fg.jointype & JT_RIGHT)!=0 /* (26) */ @@ -139898,15 +141581,6 @@ static int flattenSubquery( } isOuterJoin = 1; } -#ifdef SQLITE_EXTRA_IFNULLROW - else if( iFrom>0 && !isAgg ){ - /* Setting isOuterJoin 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. */ - isOuterJoin = -1; - } -#endif assert( pSubSrc->nSrc>0 ); /* True by restriction (7) */ if( iFrom>0 && (pSubSrc->a[0].fg.jointype & JT_LTORJ)!=0 ){ @@ -139916,41 +141590,13 @@ static int flattenSubquery( return 0; /* (28) */ } - /* Restriction (29): - ** - ** We do not want two constraints on the same term of the flattened - ** query where one constraint has EP_InnerON and the other is EP_OuterON. - ** To prevent this, one or the other of the following conditions must be - ** false: - ** - ** (29a) The right-most entry in the FROM clause of the subquery - ** must not be part of an outer join. - ** - ** (29b) The subquery itself must not be the right operand of a - ** NATURAL join or a join that as an ON or USING clause. - ** - ** These conditions are sufficient to keep an EP_OuterON from being - ** flattened into an EP_InnerON. Restrictions (3a) and (27a) prevent - ** an EP_InnerON from being flattened into an EP_OuterON. - */ - if( pSubSrc->nSrc>=2 - && (pSubSrc->a[pSubSrc->nSrc-1].fg.jointype & JT_OUTER)!=0 - ){ - if( (pSubitem->fg.jointype & JT_NATURAL)!=0 - || pSubitem->fg.isUsing - || NEVER(pSubitem->u3.pOn!=0) /* ON clause already shifted into WHERE */ - || pSubitem->fg.isOn - ){ - return 0; - } - } - /* 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 ** that make up the compound SELECT are allowed to be aggregate or distinct ** queries. */ if( pSub->pPrior ){ + int ii; if( pSub->pOrderBy ){ return 0; /* Restriction (20) */ } @@ -139983,7 +141629,6 @@ static int flattenSubquery( /* 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; } @@ -139992,6 +141637,21 @@ static int flattenSubquery( /* Restriction (23) */ if( (p->selFlags & SF_Recursive) ) return 0; + /* Restriction (17h) */ + for(ii=0; ii<pSub->pEList->nExpr; ii++){ + char aff; + assert( pSub->pEList->a[ii].pExpr!=0 ); + aff = sqlite3ExprAffinity(pSub->pEList->a[ii].pExpr); + for(pSub1=pSub->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 0; + } + } + } + if( pSrc->nSrc>1 ){ if( pParse->nSelect>500 ) return 0; if( OptimizationDisabled(db, SQLITE_FlttnUnionAll) ) return 0; @@ -140225,6 +141885,7 @@ static int flattenSubquery( x.iNewTable = iNewParent; x.isOuterJoin = isOuterJoin; x.pEList = pSub->pEList; + x.pCList = findLeftmostExprlist(pSub); substSelect(&x, pParent, 0); } @@ -140244,7 +141905,7 @@ 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]); @@ -140634,6 +142295,13 @@ static int pushDownWindowCheck(Parse *pParse, Select *pSubq, Expr *pExpr){ ** be materialized. (This restriction is implemented in the calling ** routine.) ** +** (8) The subquery may not be a compound that uses UNION, INTERSECT, +** or EXCEPT. (We could, perhaps, relax this restriction to allow +** this case if none of the comparisons operators between left and +** right arms of the compound use a collation other than BINARY. +** But it is a lot of work to check that case for an obscure and +** minor optimization, so we omit it for now.) +** ** Return 0 if no changes are made and non-zero if one or more WHERE clause ** terms are duplicated into the subquery. */ @@ -140653,6 +142321,10 @@ static int pushDownWhereTerms( if( pSubq->pPrior ){ Select *pSel; 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 ) return 0; /* restriction (8) */ if( pSel->pWin ) return 0; /* restriction (6b) */ } }else{ @@ -140707,6 +142379,7 @@ static int pushDownWhereTerms( x.iNewTable = pSrc->iCursor; 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) ){ @@ -141231,9 +142904,9 @@ 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. */ @@ -142066,7 +143739,7 @@ static void havingToWhere(Parse *pParse, Select *p){ /* ** 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, +** If it is, then return the SrcItem for the prior view. If it is not, ** then return 0. */ static SrcItem *isSelfJoinView( @@ -142684,7 +144357,10 @@ SQLITE_PRIVATE int sqlite3Select( } sqlite3SelectDestInit(&dest, SRT_EphemTab, pItem->iCursor); ExplainQueryPlan((pParse, 1, "MATERIALIZE %!S", pItem)); + dest.zAffSdst = sqlite3TableAffinityStr(db, pItem->pTab); sqlite3Select(pParse, pSub, &dest); + sqlite3DbFree(db, dest.zAffSdst); + dest.zAffSdst = 0; pItem->pTab->nRowLogEst = pSub->nSelectRow; if( onceAddr ) sqlite3VdbeJumpHere(v, onceAddr); sqlite3VdbeAddOp2(v, OP_Return, pItem->regReturn, topAddr+1); @@ -142804,7 +144480,7 @@ 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; @@ -143026,8 +144702,13 @@ SQLITE_PRIVATE int sqlite3Select( sqlite3TreeViewExprList(0, pMinMaxOrderBy, 0, "ORDERBY"); } for(ii=0; ii<pAggInfo->nColumn; ii++){ - sqlite3DebugPrintf("agg-column[%d] iMem=%d\n", - ii, pAggInfo->aCol[ii].iMem); + struct AggInfo_col *pCol = &pAggInfo->aCol[ii]; + sqlite3DebugPrintf( + "agg-column[%d] pTab=%s iTable=%d iColumn=%d iMem=%d" + " iSorterColumn=%d\n", + ii, pCol->pTab ? pCol->pTab->zName : "NULL", + pCol->iTable, pCol->iColumn, pCol->iMem, + pCol->iSorterColumn); sqlite3TreeViewExpr(0, pAggInfo->aCol[ii].pCExpr, 0); } for(ii=0; ii<pAggInfo->nFunc; ii++){ @@ -143105,7 +144786,7 @@ SQLITE_PRIVATE int sqlite3Select( sqlite3VdbeAddOp2(v, OP_Gosub, regReset, addrReset); SELECTTRACE(1,pParse,p,("WhereBegin\n")); pWInfo = sqlite3WhereBegin(pParse, pTabList, pWhere, pGroupBy, pDistinct, - 0, (sDistinct.isTnct==2 ? WHERE_DISTINCTBY : WHERE_GROUPBY) + p, (sDistinct.isTnct==2 ? WHERE_DISTINCTBY : WHERE_GROUPBY) | (orderByGrp ? WHERE_SORTBYGROUP : 0) | distFlag, 0 ); if( pWInfo==0 ){ @@ -143148,15 +144829,15 @@ 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); sqlite3VdbeAddOp3(v, OP_MakeRecord, regBase, nCol, regRecord); sqlite3VdbeAddOp2(v, OP_SorterInsert, pAggInfo->sortingIdx, regRecord); @@ -143404,7 +145085,7 @@ SQLITE_PRIVATE int sqlite3Select( SELECTTRACE(1,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; } @@ -144888,7 +146569,7 @@ 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 ){ @@ -145234,11 +146915,14 @@ 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), @@ -145249,7 +146933,7 @@ 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 @@ -146689,6 +148373,7 @@ 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; @@ -147002,6 +148687,7 @@ 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"); @@ -147073,12 +148759,17 @@ 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, @@ -147591,7 +149282,8 @@ 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++){ @@ -148391,7 +150083,7 @@ 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 ); @@ -148998,7 +150690,7 @@ 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 @@ -149070,20 +150762,6 @@ 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 @@ -149098,10 +150776,10 @@ 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 */ @@ -149120,7 +150798,6 @@ 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 */ @@ -149268,6 +150945,7 @@ 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 */ +#define WHERE_VIEWSCAN 0x02000000 /* A full-scan of a VIEW or subquery */ #endif /* !defined(SQLITE_WHEREINT_H) */ @@ -150147,7 +151825,7 @@ 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 ); @@ -150471,143 +152149,6 @@ 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_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 @@ -150676,6 +152217,8 @@ 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); @@ -150827,9 +152370,9 @@ 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")); } } @@ -150937,6 +152480,8 @@ 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); @@ -151288,6 +152833,11 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( ** guess. */ addrSeekScan = sqlite3VdbeAddOp1(v, OP_SeekScan, (pIdx->aiRowLogEst[0]+9)/10); + if( pRangeStart ){ + sqlite3VdbeChangeP5(v, 1); + sqlite3VdbeChangeP2(v, addrSeekScan, sqlite3VdbeCurrentAddr(v)+1); + addrSeekScan = 0; + } VdbeCoverage(v); } sqlite3VdbeAddOp4Int(v, op, iIdxCur, addrNxt, regBase, nConstraint); @@ -151363,8 +152913,8 @@ 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); @@ -151426,27 +152976,6 @@ 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|WHERE_RIGHT_JOIN))==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. @@ -151559,7 +153088,7 @@ 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); @@ -151812,7 +153341,7 @@ SQLITE_PRIVATE Bitmask sqlite3WhereCodeOneLoopStart( assert( pLevel->op==OP_Return ); pLevel->p2 = sqlite3VdbeCurrentAddr(v); - if( pWInfo->nLevel>1 ){ sqlite3StackFree(db, pOrTab); } + if( pWInfo->nLevel>1 ){ sqlite3DbFreeNN(db, pOrTab); } if( !untestedTerms ) disableTerm(pLevel, pTerm); }else #endif /* SQLITE_OMIT_OR_OPTIMIZATION */ @@ -152440,7 +153969,7 @@ 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; @@ -152557,8 +154086,7 @@ 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) ); @@ -152583,7 +154111,7 @@ 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; @@ -152608,13 +154136,12 @@ 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); @@ -153163,6 +154690,7 @@ static SQLITE_NOINLINE int exprMightBeIndexed2( 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 ){ aiCurCol[0] = iCur; aiCurCol[1] = XN_EXPR; @@ -153776,9 +155304,9 @@ 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 */ ){ @@ -154771,6 +156299,43 @@ 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 @@ -154786,16 +156351,10 @@ static int termCanDriveIndex( if( pTerm->leftCursor!=pSrc->iCursor ) return 0; if( (pTerm->eOperator & (WO_EQ|WO_IS))==0 ) return 0; assert( (pSrc->fg.jointype & JT_RIGHT)==0 ); - if( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))!=0 ){ - 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; /* See tag-20191211-001 */ - } + if( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))!=0 + && !constraintCompatibleWithOuterJoin(pTerm,pSrc) + ){ + return 0; /* See https://sqlite.org/forum/forumpost/51e6959f61 */ } if( (pTerm->prereqRight & notReady)!=0 ) return 0; assert( (pTerm->eOperator & (WO_OR|WO_AND))==0 ); @@ -155207,22 +156766,10 @@ 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 nor to the either table of a - ** RIGHT JOIN. See tag-20191211-001 for the - ** equivalent restriction for ordinary tables. */ - if( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))!=0 ){ - testcase( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))==JT_LEFT ); - testcase( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))==JT_RIGHT ); - 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 - ){ - continue; - } + if( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))!=0 + && !constraintCompatibleWithOuterJoin(pTerm,pSrc) + ){ + continue; } nTerm++; pTerm->wtFlags |= TERM_OK; @@ -155595,7 +157142,7 @@ 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]; } @@ -156224,12 +157771,18 @@ 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; } /* @@ -156253,7 +157806,9 @@ 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; } @@ -156271,8 +157826,9 @@ 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); } /* @@ -156280,30 +157836,19 @@ static void whereLoopDelete(sqlite3 *db, WhereLoop *p){ */ static void whereInfoFree(sqlite3 *db, WhereInfo *pWInfo){ assert( pWInfo!=0 ); + assert( db!=0 ); sqlite3WhereClauseClear(&pWInfo->sWC); while( pWInfo->pLoops ){ WhereLoop *p = pWInfo->pLoops; pWInfo->pLoops = p->pNextLoop; whereLoopDelete(db, p); } - assert( pWInfo->pExprMods==0 ); while( pWInfo->pMemToFree ){ WhereMemBlock *pNext = pWInfo->pMemToFree->pNext; - sqlite3DbFreeNN(db, pWInfo->pMemToFree); + sqlite3DbNNFreeNN(db, pWInfo->pMemToFree); pWInfo->pMemToFree = pNext; } - 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); - } + sqlite3DbNNFreeNN(db, pWInfo); } /* @@ -156870,32 +158415,11 @@ 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 nor by the left table of a - ** RIGHT JOIN. Only constraints in the ON clause are allowed. - ** See tag-20191211-002 for the vtab equivalent. - ** - ** 2022-06-06: 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. - ** - ** 2022-06-10: The same condition applies to termCanDriveIndex() above. - ** https://sqlite.org/forum/forumpost/51e6959f61 - */ - if( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))!=0 ){ - testcase( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))==JT_LEFT ); - testcase( (pSrc->fg.jointype & (JT_LEFT|JT_LTORJ|JT_RIGHT))==JT_RIGHT ); - 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 - ){ - continue; - } + 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{ @@ -156906,7 +158430,11 @@ 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; @@ -156999,38 +158527,39 @@ 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 @@ -157275,6 +158804,94 @@ static int whereUsablePartialIndex( } /* +** Structure passed to the whereIsCoveringIndex Walker callback. +*/ +struct CoveringIndexCheck { + Index *pIdx; /* The index */ + int iTabCur; /* Cursor number for the corresponding table */ +}; + +/* +** Information passed in is pWalk->u.pCovIdxCk. Call is 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. +*/ +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 */ + if( pExpr->op!=TK_COLUMN && pExpr->op!=TK_AGG_COLUMN ) return WRC_Continue; + if( pExpr->iColumn<(BMS-1) ) return WRC_Continue; + if( pExpr->iTable!=pWalk->u.pCovIdxCk->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; + } + pWalk->eCode = 1; + return WRC_Abort; +} + + +/* +** pIdx is an index that covers all of the low-number columns used by +** pWInfo->pSelect (columns from 0 through 62). But there are columns +** in pWInfo->pSelect beyond 62. This routine tries to answer the question +** of whether pIdx covers *all* columns in the query. +** +** Return 0 if pIdx is a covering index. Return non-zero if pIdx is +** not a covering index or if we are unable to determine if pIdx is a +** covering index. +** +** This routine is an optimization. It is always safe to return non-zero. +** But returning zero when non-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; + 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 1; + } + 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 1; + } + ck.pIdx = pIdx; + ck.iTabCur = iTabCur; + memset(&w, 0, sizeof(w)); + w.xExprCallback = whereIsCoveringIndexWalkCallback; + w.xSelectCallback = sqlite3SelectWalkNoop; + w.u.pCovIdxCk = &ck; + w.eCode = 0; + sqlite3WalkSelect(&w, pWInfo->pSelect); + return w.eCode; +} + +/* ** 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. @@ -157476,6 +159093,9 @@ static int whereLoopAddBtree( #else pNew->rRun = rSize + 16; #endif + if( IsView(pTab) || (pTab->tabFlags & TF_Ephemeral)!=0 ){ + pNew->wsFlags |= WHERE_VIEWSCAN; + } ApplyCostMultiplier(pNew->rRun, pTab->costMult); whereLoopOutputAdjust(pWC, pNew, rSize); rc = whereLoopInsert(pBuilder, pNew); @@ -157488,6 +159108,9 @@ static int whereLoopAddBtree( m = 0; }else{ m = pSrc->colUsed & pProbe->colNotIdxed; + if( m==TOPBIT ){ + m = whereIsCoveringIndex(pWInfo, pProbe, pSrc->iCursor); + } pNew->wsFlags = (m==0) ? (WHERE_IDX_ONLY|WHERE_INDEXED) : WHERE_INDEXED; } @@ -158202,7 +159825,13 @@ static int whereLoopAddAll(WhereLoopBuilder *pBuilder){ /* 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; @@ -158707,7 +160336,6 @@ 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 */ @@ -158726,7 +160354,6 @@ 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. @@ -158749,7 +160376,7 @@ 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; @@ -158799,9 +160426,9 @@ 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; @@ -158820,7 +160447,9 @@ 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); @@ -158848,6 +160477,13 @@ static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){ rUnsorted -= 2; /* TUNING: Slight bias in favor of no-sort plans */ } + /* TUNING: A full-scan of a VIEW or subquery in the outer loop + ** is not so bad. */ + if( iLoop==0 && (pWLoop->wsFlags & WHERE_VIEWSCAN)!=0 ){ + rCost += -10; + nOut += -30; + } + /* Check to see if pWLoop should be added to the set of ** mxChoice best-so-far paths. ** @@ -158998,7 +160634,7 @@ 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; } @@ -159080,7 +160716,7 @@ 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; } @@ -159380,6 +161016,77 @@ static SQLITE_NOINLINE void whereCheckIfBloomFilterIsUseful( } /* +** This is an sqlite3ParserAddCleanup() callback that is invoked to +** free the Parse->pIdxExpr list when the Parse object is destroyed. +*/ +static void whereIndexedExprCleanup(sqlite3 *db, void *pObject){ + Parse *pParse = (Parse*)pObject; + while( pParse->pIdxExpr!=0 ){ + IndexedExpr *p = pParse->pIdxExpr; + pParse->pIdxExpr = p->pIENext; + sqlite3ExprDelete(db, p->pExpr); + sqlite3DbFreeNN(db, p); + } +} + +/* +** 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->pIdxExpr 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->pIdxExpr */ + 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; + p = sqlite3DbMallocRaw(pParse->db, sizeof(IndexedExpr)); + if( p==0 ) break; + p->pIENext = pParse->pIdxExpr; + p->pExpr = sqlite3ExprDup(pParse->db, pExpr, 0); + p->iDataCur = pTabItem->iCursor; + p->iIdxCur = iIdxCur; + p->iIdxCol = i; + p->bMaybeNullRow = bMaybeNullRow; +#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS + p->zIdxName = pIdx->zName; +#endif + pParse->pIdxExpr = p; + if( p->pIENext==0 ){ + sqlite3ParserAddCleanup(pParse, whereIndexedExprCleanup, pParse); + } + } +} + +/* ** 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 @@ -159473,7 +161180,7 @@ 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 */ @@ -159542,7 +161249,9 @@ 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; @@ -159550,9 +161259,7 @@ 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)); @@ -159621,7 +161328,9 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( /* Analyze all of the subexpressions. */ sqlite3WhereExprAnalyze(pTabList, &pWInfo->sWC); - sqlite3WhereAddLimit(&pWInfo->sWC, pLimit); + 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 @@ -159924,6 +161633,9 @@ SQLITE_PRIVATE WhereInfo *sqlite3WhereBegin( op = OP_ReopenIdx; }else{ iIndexCur = pParse->nTab++; + if( pIx->bHasExpr && OptimizationEnabled(db, SQLITE_IndexedExpr) ){ + whereAddIndexedExpr(pParse, pIx, iIndexCur, pTabItem); + } } pLevel->iIdxCur = iIndexCur; assert( pIx!=0 ); @@ -160046,8 +161758,6 @@ 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); } @@ -160266,7 +161976,6 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ } assert( pWInfo->nLevel<=pTabList->nSrc ); - if( pWInfo->pExprMods ) whereUndoExprMods(pWInfo); for(i=0, pLevel=pWInfo->a; i<pWInfo->nLevel; i++, pLevel++){ int k, last; VdbeOp *pOp, *pLastOp; @@ -160320,6 +162029,16 @@ SQLITE_PRIVATE void sqlite3WhereEnd(WhereInfo *pWInfo){ }else{ last = pWInfo->iEndWhere; } + if( pIdx->bHasExpr ){ + IndexedExpr *p = pParse->pIdxExpr; + while( p ){ + if( p->iIdxCur==pLevel->iIdxCur ){ + p->iDataCur = -1; + p->iIdxCur = -1; + } + p = p->pIENext; + } + } k = pLevel->addrBody + 1; #ifdef SQLITE_DEBUG if( db->flags & SQLITE_VdbeAddopTrace ){ @@ -161313,7 +163032,6 @@ 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; @@ -162584,10 +164302,9 @@ 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). @@ -170164,7 +171881,7 @@ SQLITE_PRIVATE int sqlite3RunParser(Parse *pParse, const char *zSql){ if( pParse->pNewTrigger && !IN_RENAME_OBJECT ){ sqlite3DeleteTrigger(db, pParse->pNewTrigger); } - if( pParse->pVList ) sqlite3DbFreeNN(db, pParse->pVList); + if( pParse->pVList ) sqlite3DbNNFreeNN(db, pParse->pVList); db->pParse = pParentParse; assert( nErr==0 || pParse->rc!=SQLITE_OK ); return nErr; @@ -171520,18 +173237,19 @@ 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; @@ -171610,6 +173328,7 @@ SQLITE_API int sqlite3_db_cacheflush(sqlite3 *db){ SQLITE_API int sqlite3_db_config(sqlite3 *db, int op, ...){ va_list ap; int rc; + sqlite3_mutex_enter(db->mutex); va_start(ap, op); switch( op ){ case SQLITE_DBCONFIG_MAINDBNAME: { @@ -171675,6 +173394,7 @@ SQLITE_API int sqlite3_db_config(sqlite3 *db, int op, ...){ } } va_end(ap); + sqlite3_mutex_leave(db->mutex); return rc; } @@ -174045,6 +175765,19 @@ 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. @@ -174075,6 +175808,12 @@ 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, @@ -175184,7 +176923,7 @@ 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, @@ -175220,10 +176959,10 @@ 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); } @@ -175474,8 +177213,8 @@ 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) ){ @@ -201378,7 +203117,7 @@ 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: @@ -206005,6 +207744,34 @@ 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. @@ -206371,6 +208138,8 @@ 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 @@ -208759,7 +210528,7 @@ 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); } } @@ -209219,32 +210988,7 @@ 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 @@ -209983,6 +211727,7 @@ 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 */ @@ -210374,6 +212119,54 @@ 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: @@ -212504,12 +214297,18 @@ 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 */ @@ -212518,7 +214317,7 @@ static int dbpageColumn( break; } } - return SQLITE_OK; + return rc; } static int dbpageRowid(sqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){ @@ -212578,11 +214377,12 @@ 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); @@ -212602,11 +214402,12 @@ static int dbpageBegin(sqlite3_vtab *pVtab){ DbpageTable *pTab = (DbpageTable *)pVtab; sqlite3 *db = pTab->db; int i; - for(i=0; i<db->nDb; i++){ + int rc = SQLITE_OK; + for(i=0; rc==SQLITE_OK && i<db->nDb; i++){ Btree *pBt = db->aDb[i].pBt; - if( pBt ) sqlite3BtreeBeginTrans(pBt, 1, 0); + if( pBt ) rc = sqlite3BtreeBeginTrans(pBt, 1, 0); } - return SQLITE_OK; + return rc; } @@ -219330,7 +221131,7 @@ 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) @@ -231207,7 +233008,9 @@ 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; @@ -231971,7 +233774,7 @@ static int sqlite3Fts5IndexMerge(Fts5Index *p, int nMerge){ static void fts5AppendRowid( Fts5Index *p, - i64 iDelta, + u64 iDelta, Fts5Iter *pUnused, Fts5Buffer *pBuf ){ @@ -231981,7 +233784,7 @@ static void fts5AppendRowid( static void fts5AppendPoslist( Fts5Index *p, - i64 iDelta, + u64 iDelta, Fts5Iter *pMulti, Fts5Buffer *pBuf ){ @@ -232056,10 +233859,10 @@ 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); \ } /* @@ -232330,7 +234133,7 @@ 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; @@ -232369,7 +234172,7 @@ 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; } } @@ -232417,7 +234220,7 @@ 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; } @@ -233396,6 +235199,7 @@ 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) ){ @@ -236733,7 +238537,7 @@ static void fts5SourceIdFunc( ){ assert( nArg==0 ); UNUSED_PARAM2(nArg, apUnused); - sqlite3_result_text(pCtx, "fts5: 2022-09-29 15:55:41 a29f9949895322123f7c38fbe94c649a9d6e6c9cd0c3b41c96d694552f26b309", -1, SQLITE_TRANSIENT); + sqlite3_result_text(pCtx, "fts5: 2022-11-16 12:10:08 89c459e766ea7e9165d0beeb124708b955a4950d0f4792f457465d71b158d318", -1, SQLITE_TRANSIENT); } /* diff --git a/libs/sqlite3/src/sqlite3.h b/libs/sqlite3/src/sqlite3.h index 9b284d2764..2859cc09b4 100644 --- a/libs/sqlite3/src/sqlite3.h +++ b/libs/sqlite3/src/sqlite3.h @@ -146,9 +146,9 @@ extern "C" { ** [sqlite3_libversion_number()], [sqlite3_sourceid()], ** [sqlite_version()] and [sqlite_source_id()]. */ -#define SQLITE_VERSION "3.39.4" -#define SQLITE_VERSION_NUMBER 3039004 -#define SQLITE_SOURCE_ID "2022-09-29 15:55:41 a29f9949895322123f7c38fbe94c649a9d6e6c9cd0c3b41c96d694552f26b309" +#define SQLITE_VERSION "3.40.0" +#define SQLITE_VERSION_NUMBER 3040000 +#define SQLITE_SOURCE_ID "2022-11-16 12:10:08 89c459e766ea7e9165d0beeb124708b955a4950d0f4792f457465d71b158d318" /* ** CAPI3REF: Run-Time Library Version Numbers @@ -670,13 +670,17 @@ 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 @@ -754,7 +758,14 @@ 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 @@ -859,9 +870,8 @@ 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 @@ -1254,6 +1264,26 @@ 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 @@ -1431,7 +1461,7 @@ 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); @@ -2309,6 +2339,7 @@ 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> @@ -3424,6 +3455,9 @@ 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 @@ -3439,7 +3473,7 @@ 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 @@ -3698,10 +3732,10 @@ 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 @@ -3730,9 +3764,9 @@ 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 @@ -3798,14 +3832,14 @@ 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 @@ -5508,6 +5542,16 @@ SQLITE_API SQLITE_DEPRECATED int sqlite3_memory_alarm(void(*)(void*,sqlite3_int6 ** then the conversion is performed. Otherwise no conversion occurs. ** The [SQLITE_INTEGER | datatype] after conversion is returned.)^ ** +** ^(The sqlite3_value_encoding(X) interface returns one of [SQLITE_UTF8], +** [SQLITE_UTF16BE], or [SQLITE_UTF16LE] according to the current 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). +** ** ^Within the [xUpdate] method of a [virtual table], the ** sqlite3_value_nochange(X) interface returns true if and only if ** the column corresponding to X is unchanged by the UPDATE operation @@ -5572,6 +5616,7 @@ SQLITE_API int sqlite3_value_type(sqlite3_value*); SQLITE_API int sqlite3_value_numeric_type(sqlite3_value*); SQLITE_API int sqlite3_value_nochange(sqlite3_value*); SQLITE_API int sqlite3_value_frombind(sqlite3_value*); +SQLITE_API int sqlite3_value_encoding(sqlite3_value*); /* ** CAPI3REF: Finding The Subtype Of SQL Values @@ -5625,7 +5670,7 @@ 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 @@ -5830,9 +5875,10 @@ 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 @@ -6328,7 +6374,7 @@ SQLITE_API const char *sqlite3_db_name(sqlite3 *db, int N); ** <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 @@ -6465,7 +6511,7 @@ 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. @@ -6586,6 +6632,11 @@ 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, @@ -6684,7 +6735,7 @@ 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 @@ -8979,7 +9030,7 @@ 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 @@ -9407,7 +9458,7 @@ 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 */ /* |