Update to SQLite 3.7.7.1
JacobF
parent
4af1f2963c
commit
99de37ff94
7520
src/sqlite/sqlite3.c
7520
src/sqlite/sqlite3.c
File diff suppressed because it is too large
Load Diff
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@ -107,9 +107,9 @@ extern "C" {
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** [sqlite3_libversion_number()], [sqlite3_sourceid()],
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** [sqlite_version()] and [sqlite_source_id()].
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*/
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#define SQLITE_VERSION "3.7.6.3"
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#define SQLITE_VERSION_NUMBER 3007006
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#define SQLITE_SOURCE_ID "2011-05-19 13:26:54 ed1da510a239ea767a01dc332b667119fa3c908e"
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#define SQLITE_VERSION "3.7.7.1"
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#define SQLITE_VERSION_NUMBER 3007007
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#define SQLITE_SOURCE_ID "2011-06-28 17:39:05 af0d91adf497f5f36ec3813f04235a6e195a605f"
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/*
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** CAPI3REF: Run-Time Library Version Numbers
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@ -310,7 +310,7 @@ typedef int (*sqlite3_callback)(void*,int,char**, char**);
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** argument. ^If the callback function of the 3rd argument to
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** sqlite3_exec() is not NULL, then it is invoked for each result row
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** coming out of the evaluated SQL statements. ^The 4th argument to
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** to sqlite3_exec() is relayed through to the 1st argument of each
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** sqlite3_exec() is relayed through to the 1st argument of each
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** callback invocation. ^If the callback pointer to sqlite3_exec()
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** is NULL, then no callback is ever invoked and result rows are
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** ignored.
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@ -375,7 +375,8 @@ SQLITE_API int sqlite3_exec(
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**
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** New error codes may be added in future versions of SQLite.
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**
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** See also: [SQLITE_IOERR_READ | extended result codes]
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** See also: [SQLITE_IOERR_READ | extended result codes],
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** [sqlite3_vtab_on_conflict()] [SQLITE_ROLLBACK | result codes].
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*/
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#define SQLITE_OK 0 /* Successful result */
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/* beginning-of-error-codes */
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@ -452,17 +453,21 @@ SQLITE_API int sqlite3_exec(
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#define SQLITE_IOERR_SHMOPEN (SQLITE_IOERR | (18<<8))
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#define SQLITE_IOERR_SHMSIZE (SQLITE_IOERR | (19<<8))
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#define SQLITE_IOERR_SHMLOCK (SQLITE_IOERR | (20<<8))
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#define SQLITE_IOERR_SHMMAP (SQLITE_IOERR | (21<<8))
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#define SQLITE_IOERR_SEEK (SQLITE_IOERR | (22<<8))
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#define SQLITE_LOCKED_SHAREDCACHE (SQLITE_LOCKED | (1<<8))
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#define SQLITE_BUSY_RECOVERY (SQLITE_BUSY | (1<<8))
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#define SQLITE_CANTOPEN_NOTEMPDIR (SQLITE_CANTOPEN | (1<<8))
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#define SQLITE_CORRUPT_VTAB (SQLITE_CORRUPT | (1<<8))
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#define SQLITE_READONLY_RECOVERY (SQLITE_READONLY | (1<<8))
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#define SQLITE_READONLY_CANTLOCK (SQLITE_READONLY | (2<<8))
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/*
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** CAPI3REF: Flags For File Open Operations
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**
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** These bit values are intended for use in the
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** 3rd parameter to the [sqlite3_open_v2()] interface and
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** in the 4th parameter to the xOpen method of the
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** [sqlite3_vfs] object.
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** in the 4th parameter to the [sqlite3_vfs.xOpen] method.
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*/
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#define SQLITE_OPEN_READONLY 0x00000001 /* Ok for sqlite3_open_v2() */
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#define SQLITE_OPEN_READWRITE 0x00000002 /* Ok for sqlite3_open_v2() */
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@ -470,6 +475,7 @@ SQLITE_API int sqlite3_exec(
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#define SQLITE_OPEN_DELETEONCLOSE 0x00000008 /* VFS only */
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#define SQLITE_OPEN_EXCLUSIVE 0x00000010 /* VFS only */
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#define SQLITE_OPEN_AUTOPROXY 0x00000020 /* VFS only */
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#define SQLITE_OPEN_URI 0x00000040 /* Ok for sqlite3_open_v2() */
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#define SQLITE_OPEN_MAIN_DB 0x00000100 /* VFS only */
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#define SQLITE_OPEN_TEMP_DB 0x00000200 /* VFS only */
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#define SQLITE_OPEN_TRANSIENT_DB 0x00000400 /* VFS only */
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@ -580,17 +586,18 @@ struct sqlite3_file {
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/*
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** CAPI3REF: OS Interface File Virtual Methods Object
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**
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** Every file opened by the [sqlite3_vfs] xOpen method populates an
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** Every file opened by the [sqlite3_vfs.xOpen] method populates an
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** [sqlite3_file] object (or, more commonly, a subclass of the
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** [sqlite3_file] object) with a pointer to an instance of this object.
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** This object defines the methods used to perform various operations
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** against the open file represented by the [sqlite3_file] object.
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**
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** If the xOpen method sets the sqlite3_file.pMethods element
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** If the [sqlite3_vfs.xOpen] method sets the sqlite3_file.pMethods element
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** to a non-NULL pointer, then the sqlite3_io_methods.xClose method
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** may be invoked even if the xOpen reported that it failed. The
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** only way to prevent a call to xClose following a failed xOpen
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** is for the xOpen to set the sqlite3_file.pMethods element to NULL.
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** may be invoked even if the [sqlite3_vfs.xOpen] reported that it failed. The
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** only way to prevent a call to xClose following a failed [sqlite3_vfs.xOpen]
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** is for the [sqlite3_vfs.xOpen] to set the sqlite3_file.pMethods element
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** to NULL.
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**
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** The flags argument to xSync may be one of [SQLITE_SYNC_NORMAL] or
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** [SQLITE_SYNC_FULL]. The first choice is the normal fsync().
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@ -762,7 +769,8 @@ typedef struct sqlite3_mutex sqlite3_mutex;
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**
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** An instance of the sqlite3_vfs object defines the interface between
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** the SQLite core and the underlying operating system. The "vfs"
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** in the name of the object stands for "virtual file system".
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** in the name of the object stands for "virtual file system". See
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** the [VFS | VFS documentation] for further information.
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**
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** The value of the iVersion field is initially 1 but may be larger in
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** future versions of SQLite. Additional fields may be appended to this
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@ -791,6 +799,7 @@ typedef struct sqlite3_mutex sqlite3_mutex;
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** The zName field holds the name of the VFS module. The name must
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** be unique across all VFS modules.
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**
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** [[sqlite3_vfs.xOpen]]
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** ^SQLite guarantees that the zFilename parameter to xOpen
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** is either a NULL pointer or string obtained
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** from xFullPathname() with an optional suffix added.
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@ -868,6 +877,7 @@ typedef struct sqlite3_mutex sqlite3_mutex;
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** element will be valid after xOpen returns regardless of the success
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** or failure of the xOpen call.
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**
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** [[sqlite3_vfs.xAccess]]
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** ^The flags argument to xAccess() may be [SQLITE_ACCESS_EXISTS]
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** to test for the existence of a file, or [SQLITE_ACCESS_READWRITE] to
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** test whether a file is readable and writable, or [SQLITE_ACCESS_READ]
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@ -892,7 +902,7 @@ typedef struct sqlite3_mutex sqlite3_mutex;
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** method returns a Julian Day Number for the current date and time as
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** a floating point value.
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** ^The xCurrentTimeInt64() method returns, as an integer, the Julian
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** Day Number multipled by 86400000 (the number of milliseconds in
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** Day Number multiplied by 86400000 (the number of milliseconds in
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** a 24-hour day).
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** ^SQLite will use the xCurrentTimeInt64() method to get the current
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** date and time if that method is available (if iVersion is 2 or
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@ -1114,9 +1124,9 @@ SQLITE_API int sqlite3_os_end(void);
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** implementation of an application-defined [sqlite3_os_init()].
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**
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** The first argument to sqlite3_config() is an integer
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** [SQLITE_CONFIG_SINGLETHREAD | configuration option] that determines
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** [configuration option] that determines
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** what property of SQLite is to be configured. Subsequent arguments
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** vary depending on the [SQLITE_CONFIG_SINGLETHREAD | configuration option]
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** vary depending on the [configuration option]
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** in the first argument.
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**
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** ^When a configuration option is set, sqlite3_config() returns [SQLITE_OK].
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@ -1226,6 +1236,7 @@ struct sqlite3_mem_methods {
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/*
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** CAPI3REF: Configuration Options
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** KEYWORDS: {configuration option}
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**
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** These constants are the available integer configuration options that
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** can be passed as the first argument to the [sqlite3_config()] interface.
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@ -1238,7 +1249,7 @@ struct sqlite3_mem_methods {
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** is invoked.
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**
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** <dl>
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** <dt>SQLITE_CONFIG_SINGLETHREAD</dt>
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** [[SQLITE_CONFIG_SINGLETHREAD]] <dt>SQLITE_CONFIG_SINGLETHREAD</dt>
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** <dd>There are no arguments to this option. ^This option sets the
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** [threading mode] to Single-thread. In other words, it disables
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** all mutexing and puts SQLite into a mode where it can only be used
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@ -1249,7 +1260,7 @@ struct sqlite3_mem_methods {
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** [SQLITE_ERROR] if called with the SQLITE_CONFIG_SINGLETHREAD
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** configuration option.</dd>
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**
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** <dt>SQLITE_CONFIG_MULTITHREAD</dt>
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** [[SQLITE_CONFIG_MULTITHREAD]] <dt>SQLITE_CONFIG_MULTITHREAD</dt>
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** <dd>There are no arguments to this option. ^This option sets the
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** [threading mode] to Multi-thread. In other words, it disables
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** mutexing on [database connection] and [prepared statement] objects.
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@ -1263,7 +1274,7 @@ struct sqlite3_mem_methods {
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** [sqlite3_config()] will return [SQLITE_ERROR] if called with the
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** SQLITE_CONFIG_MULTITHREAD configuration option.</dd>
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**
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** <dt>SQLITE_CONFIG_SERIALIZED</dt>
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** [[SQLITE_CONFIG_SERIALIZED]] <dt>SQLITE_CONFIG_SERIALIZED</dt>
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** <dd>There are no arguments to this option. ^This option sets the
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** [threading mode] to Serialized. In other words, this option enables
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** all mutexes including the recursive
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@ -1279,7 +1290,7 @@ struct sqlite3_mem_methods {
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** [sqlite3_config()] will return [SQLITE_ERROR] if called with the
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** SQLITE_CONFIG_SERIALIZED configuration option.</dd>
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**
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** <dt>SQLITE_CONFIG_MALLOC</dt>
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** [[SQLITE_CONFIG_MALLOC]] <dt>SQLITE_CONFIG_MALLOC</dt>
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** <dd> ^(This option takes a single argument which is a pointer to an
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** instance of the [sqlite3_mem_methods] structure. The argument specifies
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** alternative low-level memory allocation routines to be used in place of
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@ -1287,7 +1298,7 @@ struct sqlite3_mem_methods {
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** its own private copy of the content of the [sqlite3_mem_methods] structure
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** before the [sqlite3_config()] call returns.</dd>
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**
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** <dt>SQLITE_CONFIG_GETMALLOC</dt>
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** [[SQLITE_CONFIG_GETMALLOC]] <dt>SQLITE_CONFIG_GETMALLOC</dt>
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** <dd> ^(This option takes a single argument which is a pointer to an
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** instance of the [sqlite3_mem_methods] structure. The [sqlite3_mem_methods]
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** structure is filled with the currently defined memory allocation routines.)^
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@ -1295,7 +1306,7 @@ struct sqlite3_mem_methods {
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** routines with a wrapper that simulations memory allocation failure or
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** tracks memory usage, for example. </dd>
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**
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** <dt>SQLITE_CONFIG_MEMSTATUS</dt>
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** [[SQLITE_CONFIG_MEMSTATUS]] <dt>SQLITE_CONFIG_MEMSTATUS</dt>
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** <dd> ^This option takes single argument of type int, interpreted as a
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** boolean, which enables or disables the collection of memory allocation
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** statistics. ^(When memory allocation statistics are disabled, the
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@ -1311,7 +1322,7 @@ struct sqlite3_mem_methods {
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** allocation statistics are disabled by default.
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** </dd>
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**
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** <dt>SQLITE_CONFIG_SCRATCH</dt>
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** [[SQLITE_CONFIG_SCRATCH]] <dt>SQLITE_CONFIG_SCRATCH</dt>
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** <dd> ^This option specifies a static memory buffer that SQLite can use for
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** scratch memory. There are three arguments: A pointer an 8-byte
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** aligned memory buffer from which the scratch allocations will be
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@ -1327,9 +1338,9 @@ struct sqlite3_mem_methods {
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** scratch memory beyond what is provided by this configuration option, then
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** [sqlite3_malloc()] will be used to obtain the memory needed.</dd>
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**
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** <dt>SQLITE_CONFIG_PAGECACHE</dt>
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** [[SQLITE_CONFIG_PAGECACHE]] <dt>SQLITE_CONFIG_PAGECACHE</dt>
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** <dd> ^This option specifies a static memory buffer that SQLite can use for
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** the database page cache with the default page cache implemenation.
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** the database page cache with the default page cache implementation.
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** This configuration should not be used if an application-define page
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** cache implementation is loaded using the SQLITE_CONFIG_PCACHE option.
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** There are three arguments to this option: A pointer to 8-byte aligned
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@ -1348,7 +1359,7 @@ struct sqlite3_mem_methods {
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** be aligned to an 8-byte boundary or subsequent behavior of SQLite
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** will be undefined.</dd>
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**
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** <dt>SQLITE_CONFIG_HEAP</dt>
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** [[SQLITE_CONFIG_HEAP]] <dt>SQLITE_CONFIG_HEAP</dt>
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** <dd> ^This option specifies a static memory buffer that SQLite will use
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** for all of its dynamic memory allocation needs beyond those provided
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** for by [SQLITE_CONFIG_SCRATCH] and [SQLITE_CONFIG_PAGECACHE].
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@ -1365,7 +1376,7 @@ struct sqlite3_mem_methods {
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** The minimum allocation size is capped at 2^12. Reasonable values
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** for the minimum allocation size are 2^5 through 2^8.</dd>
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**
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** <dt>SQLITE_CONFIG_MUTEX</dt>
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** [[SQLITE_CONFIG_MUTEX]] <dt>SQLITE_CONFIG_MUTEX</dt>
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** <dd> ^(This option takes a single argument which is a pointer to an
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** instance of the [sqlite3_mutex_methods] structure. The argument specifies
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** alternative low-level mutex routines to be used in place
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@ -1377,7 +1388,7 @@ struct sqlite3_mem_methods {
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** [sqlite3_config()] with the SQLITE_CONFIG_MUTEX configuration option will
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** return [SQLITE_ERROR].</dd>
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**
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** <dt>SQLITE_CONFIG_GETMUTEX</dt>
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** [[SQLITE_CONFIG_GETMUTEX]] <dt>SQLITE_CONFIG_GETMUTEX</dt>
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** <dd> ^(This option takes a single argument which is a pointer to an
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** instance of the [sqlite3_mutex_methods] structure. The
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** [sqlite3_mutex_methods]
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@ -1390,7 +1401,7 @@ struct sqlite3_mem_methods {
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** [sqlite3_config()] with the SQLITE_CONFIG_GETMUTEX configuration option will
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** return [SQLITE_ERROR].</dd>
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**
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** <dt>SQLITE_CONFIG_LOOKASIDE</dt>
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** [[SQLITE_CONFIG_LOOKASIDE]] <dt>SQLITE_CONFIG_LOOKASIDE</dt>
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** <dd> ^(This option takes two arguments that determine the default
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** memory allocation for the lookaside memory allocator on each
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** [database connection]. The first argument is the
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@ -1400,18 +1411,18 @@ struct sqlite3_mem_methods {
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** verb to [sqlite3_db_config()] can be used to change the lookaside
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** configuration on individual connections.)^ </dd>
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**
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** <dt>SQLITE_CONFIG_PCACHE</dt>
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** [[SQLITE_CONFIG_PCACHE]] <dt>SQLITE_CONFIG_PCACHE</dt>
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** <dd> ^(This option takes a single argument which is a pointer to
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** an [sqlite3_pcache_methods] object. This object specifies the interface
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** to a custom page cache implementation.)^ ^SQLite makes a copy of the
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** object and uses it for page cache memory allocations.</dd>
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**
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** <dt>SQLITE_CONFIG_GETPCACHE</dt>
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** [[SQLITE_CONFIG_GETPCACHE]] <dt>SQLITE_CONFIG_GETPCACHE</dt>
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** <dd> ^(This option takes a single argument which is a pointer to an
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** [sqlite3_pcache_methods] object. SQLite copies of the current
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** page cache implementation into that object.)^ </dd>
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**
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** <dt>SQLITE_CONFIG_LOG</dt>
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** [[SQLITE_CONFIG_LOG]] <dt>SQLITE_CONFIG_LOG</dt>
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** <dd> ^The SQLITE_CONFIG_LOG option takes two arguments: a pointer to a
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** function with a call signature of void(*)(void*,int,const char*),
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** and a pointer to void. ^If the function pointer is not NULL, it is
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@ -1429,6 +1440,18 @@ struct sqlite3_mem_methods {
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** In a multi-threaded application, the application-defined logger
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** function must be threadsafe. </dd>
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**
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** [[SQLITE_CONFIG_URI]] <dt>SQLITE_CONFIG_URI
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** <dd> This option takes a single argument of type int. If non-zero, then
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** URI handling is globally enabled. If the parameter is zero, then URI handling
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** is globally disabled. If URI handling is globally enabled, all filenames
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** passed to [sqlite3_open()], [sqlite3_open_v2()], [sqlite3_open16()] or
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** specified as part of [ATTACH] commands are interpreted as URIs, regardless
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** of whether or not the [SQLITE_OPEN_URI] flag is set when the database
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** connection is opened. If it is globally disabled, filenames are
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** only interpreted as URIs if the SQLITE_OPEN_URI flag is set when the
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** database connection is opened. By default, URI handling is globally
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** disabled. The default value may be changed by compiling with the
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** [SQLITE_USE_URI] symbol defined.
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** </dl>
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*/
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#define SQLITE_CONFIG_SINGLETHREAD 1 /* nil */
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@ -1447,6 +1470,7 @@ struct sqlite3_mem_methods {
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#define SQLITE_CONFIG_PCACHE 14 /* sqlite3_pcache_methods* */
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#define SQLITE_CONFIG_GETPCACHE 15 /* sqlite3_pcache_methods* */
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#define SQLITE_CONFIG_LOG 16 /* xFunc, void* */
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#define SQLITE_CONFIG_URI 17 /* int */
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/*
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** CAPI3REF: Database Connection Configuration Options
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@ -1532,13 +1556,17 @@ SQLITE_API int sqlite3_extended_result_codes(sqlite3*, int onoff);
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**
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** ^This routine returns the [rowid] of the most recent
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** successful [INSERT] into the database from the [database connection]
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** in the first argument. ^If no successful [INSERT]s
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** in the first argument. ^As of SQLite version 3.7.7, this routines
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** records the last insert rowid of both ordinary tables and [virtual tables].
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** ^If no successful [INSERT]s
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** have ever occurred on that database connection, zero is returned.
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**
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** ^(If an [INSERT] occurs within a trigger, then the [rowid] of the inserted
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** row is returned by this routine as long as the trigger is running.
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** But once the trigger terminates, the value returned by this routine
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** reverts to the last value inserted before the trigger fired.)^
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** ^(If an [INSERT] occurs within a trigger or within a [virtual table]
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** method, then this routine will return the [rowid] of the inserted
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** row as long as the trigger or virtual table method is running.
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** But once the trigger or virtual table method ends, the value returned
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** by this routine reverts to what it was before the trigger or virtual
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** table method began.)^
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**
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** ^An [INSERT] that fails due to a constraint violation is not a
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** successful [INSERT] and does not change the value returned by this
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@ -2201,6 +2229,9 @@ SQLITE_API int sqlite3_set_authorizer(
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** to signal SQLite whether or not the action is permitted. See the
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** [sqlite3_set_authorizer | authorizer documentation] for additional
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** information.
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**
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** Note that SQLITE_IGNORE is also used as a [SQLITE_ROLLBACK | return code]
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** from the [sqlite3_vtab_on_conflict()] interface.
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*/
|
||||
#define SQLITE_DENY 1 /* Abort the SQL statement with an error */
|
||||
#define SQLITE_IGNORE 2 /* Don't allow access, but don't generate an error */
|
||||
|
|
@ -2323,7 +2354,7 @@ SQLITE_API void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*);
|
|||
/*
|
||||
** CAPI3REF: Opening A New Database Connection
|
||||
**
|
||||
** ^These routines open an SQLite database file whose name is given by the
|
||||
** ^These routines open an SQLite database file as specified by the
|
||||
** filename argument. ^The filename argument is interpreted as UTF-8 for
|
||||
** sqlite3_open() and sqlite3_open_v2() and as UTF-16 in the native byte
|
||||
** order for sqlite3_open16(). ^(A [database connection] handle is usually
|
||||
|
|
@ -2350,7 +2381,7 @@ SQLITE_API void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*);
|
|||
** sqlite3_open_v2() can take one of
|
||||
** the following three values, optionally combined with the
|
||||
** [SQLITE_OPEN_NOMUTEX], [SQLITE_OPEN_FULLMUTEX], [SQLITE_OPEN_SHAREDCACHE],
|
||||
** and/or [SQLITE_OPEN_PRIVATECACHE] flags:)^
|
||||
** [SQLITE_OPEN_PRIVATECACHE], and/or [SQLITE_OPEN_URI] flags:)^
|
||||
**
|
||||
** <dl>
|
||||
** ^(<dt>[SQLITE_OPEN_READONLY]</dt>
|
||||
|
|
@ -2369,9 +2400,8 @@ SQLITE_API void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*);
|
|||
** </dl>
|
||||
**
|
||||
** If the 3rd parameter to sqlite3_open_v2() is not one of the
|
||||
** combinations shown above or one of the combinations shown above combined
|
||||
** with the [SQLITE_OPEN_NOMUTEX], [SQLITE_OPEN_FULLMUTEX],
|
||||
** [SQLITE_OPEN_SHAREDCACHE] and/or [SQLITE_OPEN_PRIVATECACHE] flags,
|
||||
** combinations shown above optionally combined with other
|
||||
** [SQLITE_OPEN_READONLY | SQLITE_OPEN_* bits]
|
||||
** then the behavior is undefined.
|
||||
**
|
||||
** ^If the [SQLITE_OPEN_NOMUTEX] flag is set, then the database connection
|
||||
|
|
@ -2386,6 +2416,11 @@ SQLITE_API void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*);
|
|||
** [SQLITE_OPEN_PRIVATECACHE] flag causes the database connection to not
|
||||
** participate in [shared cache mode] even if it is enabled.
|
||||
**
|
||||
** ^The fourth parameter to sqlite3_open_v2() is the name of the
|
||||
** [sqlite3_vfs] object that defines the operating system interface that
|
||||
** the new database connection should use. ^If the fourth parameter is
|
||||
** a NULL pointer then the default [sqlite3_vfs] object is used.
|
||||
**
|
||||
** ^If the filename is ":memory:", then a private, temporary in-memory database
|
||||
** is created for the connection. ^This in-memory database will vanish when
|
||||
** the database connection is closed. Future versions of SQLite might
|
||||
|
|
@ -2398,10 +2433,111 @@ SQLITE_API void sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*);
|
|||
** on-disk database will be created. ^This private database will be
|
||||
** automatically deleted as soon as the database connection is closed.
|
||||
**
|
||||
** ^The fourth parameter to sqlite3_open_v2() is the name of the
|
||||
** [sqlite3_vfs] object that defines the operating system interface that
|
||||
** the new database connection should use. ^If the fourth parameter is
|
||||
** a NULL pointer then the default [sqlite3_vfs] object is used.
|
||||
** [[URI filenames in sqlite3_open()]] <h3>URI Filenames</h3>
|
||||
**
|
||||
** ^If [URI filename] interpretation is enabled, and the filename argument
|
||||
** begins with "file:", then the filename is interpreted as a URI. ^URI
|
||||
** filename interpretation is enabled if the [SQLITE_OPEN_URI] flag is
|
||||
** set in the fourth argument to sqlite3_open_v2(), or if it has
|
||||
** been enabled globally using the [SQLITE_CONFIG_URI] option with the
|
||||
** [sqlite3_config()] method or by the [SQLITE_USE_URI] compile-time option.
|
||||
** As of SQLite version 3.7.7, URI filename interpretation is turned off
|
||||
** by default, but future releases of SQLite might enable URI filename
|
||||
** interpretation by default. See "[URI filenames]" for additional
|
||||
** information.
|
||||
**
|
||||
** URI filenames are parsed according to RFC 3986. ^If the URI contains an
|
||||
** authority, then it must be either an empty string or the string
|
||||
** "localhost". ^If the authority is not an empty string or "localhost", an
|
||||
** error is returned to the caller. ^The fragment component of a URI, if
|
||||
** present, is ignored.
|
||||
**
|
||||
** ^SQLite uses the path component of the URI as the name of the disk file
|
||||
** which contains the database. ^If the path begins with a '/' character,
|
||||
** then it is interpreted as an absolute path. ^If the path does not begin
|
||||
** with a '/' (meaning that the authority section is omitted from the URI)
|
||||
** then the path is interpreted as a relative path.
|
||||
** ^On windows, the first component of an absolute path
|
||||
** is a drive specification (e.g. "C:").
|
||||
**
|
||||
** [[core URI query parameters]]
|
||||
** The query component of a URI may contain parameters that are interpreted
|
||||
** either by SQLite itself, or by a [VFS | custom VFS implementation].
|
||||
** SQLite interprets the following three query parameters:
|
||||
**
|
||||
** <ul>
|
||||
** <li> <b>vfs</b>: ^The "vfs" parameter may be used to specify the name of
|
||||
** a VFS object that provides the operating system interface that should
|
||||
** be used to access the database file on disk. ^If this option is set to
|
||||
** an empty string the default VFS object is used. ^Specifying an unknown
|
||||
** VFS is an error. ^If sqlite3_open_v2() is used and the vfs option is
|
||||
** present, then the VFS specified by the option takes precedence over
|
||||
** the value passed as the fourth parameter to sqlite3_open_v2().
|
||||
**
|
||||
** <li> <b>mode</b>: ^(The mode parameter may be set to either "ro", "rw" or
|
||||
** "rwc". Attempting to set it to any other value is an error)^.
|
||||
** ^If "ro" is specified, then the database is opened for read-only
|
||||
** access, just as if the [SQLITE_OPEN_READONLY] flag had been set in the
|
||||
** third argument to sqlite3_prepare_v2(). ^If the mode option is set to
|
||||
** "rw", then the database is opened for read-write (but not create)
|
||||
** access, as if SQLITE_OPEN_READWRITE (but not SQLITE_OPEN_CREATE) had
|
||||
** been set. ^Value "rwc" is equivalent to setting both
|
||||
** SQLITE_OPEN_READWRITE and SQLITE_OPEN_CREATE. ^If sqlite3_open_v2() is
|
||||
** used, it is an error to specify a value for the mode parameter that is
|
||||
** less restrictive than that specified by the flags passed as the third
|
||||
** parameter.
|
||||
**
|
||||
** <li> <b>cache</b>: ^The cache parameter may be set to either "shared" or
|
||||
** "private". ^Setting it to "shared" is equivalent to setting the
|
||||
** SQLITE_OPEN_SHAREDCACHE bit in the flags argument passed to
|
||||
** sqlite3_open_v2(). ^Setting the cache parameter to "private" is
|
||||
** equivalent to setting the SQLITE_OPEN_PRIVATECACHE bit.
|
||||
** ^If sqlite3_open_v2() is used and the "cache" parameter is present in
|
||||
** a URI filename, its value overrides any behaviour requested by setting
|
||||
** SQLITE_OPEN_PRIVATECACHE or SQLITE_OPEN_SHAREDCACHE flag.
|
||||
** </ul>
|
||||
**
|
||||
** ^Specifying an unknown parameter in the query component of a URI is not an
|
||||
** error. Future versions of SQLite might understand additional query
|
||||
** parameters. See "[query parameters with special meaning to SQLite]" for
|
||||
** additional information.
|
||||
**
|
||||
** [[URI filename examples]] <h3>URI filename examples</h3>
|
||||
**
|
||||
** <table border="1" align=center cellpadding=5>
|
||||
** <tr><th> URI filenames <th> Results
|
||||
** <tr><td> file:data.db <td>
|
||||
** Open the file "data.db" in the current directory.
|
||||
** <tr><td> file:/home/fred/data.db<br>
|
||||
** file:///home/fred/data.db <br>
|
||||
** file://localhost/home/fred/data.db <br> <td>
|
||||
** Open the database file "/home/fred/data.db".
|
||||
** <tr><td> file://darkstar/home/fred/data.db <td>
|
||||
** An error. "darkstar" is not a recognized authority.
|
||||
** <tr><td style="white-space:nowrap">
|
||||
** file:///C:/Documents%20and%20Settings/fred/Desktop/data.db
|
||||
** <td> Windows only: Open the file "data.db" on fred's desktop on drive
|
||||
** C:. Note that the %20 escaping in this example is not strictly
|
||||
** necessary - space characters can be used literally
|
||||
** in URI filenames.
|
||||
** <tr><td> file:data.db?mode=ro&cache=private <td>
|
||||
** Open file "data.db" in the current directory for read-only access.
|
||||
** Regardless of whether or not shared-cache mode is enabled by
|
||||
** default, use a private cache.
|
||||
** <tr><td> file:/home/fred/data.db?vfs=unix-nolock <td>
|
||||
** Open file "/home/fred/data.db". Use the special VFS "unix-nolock".
|
||||
** <tr><td> file:data.db?mode=readonly <td>
|
||||
** An error. "readonly" is not a valid option for the "mode" parameter.
|
||||
** </table>
|
||||
**
|
||||
** ^URI hexadecimal escape sequences (%HH) are supported within the path and
|
||||
** query components of a URI. A hexadecimal escape sequence consists of a
|
||||
** percent sign - "%" - followed by exactly two hexadecimal digits
|
||||
** specifying an octet value. ^Before the path or query components of a
|
||||
** URI filename are interpreted, they are encoded using UTF-8 and all
|
||||
** hexadecimal escape sequences replaced by a single byte containing the
|
||||
** corresponding octet. If this process generates an invalid UTF-8 encoding,
|
||||
** the results are undefined.
|
||||
**
|
||||
** <b>Note to Windows users:</b> The encoding used for the filename argument
|
||||
** of sqlite3_open() and sqlite3_open_v2() must be UTF-8, not whatever
|
||||
|
|
@ -2424,6 +2560,26 @@ SQLITE_API int sqlite3_open_v2(
|
|||
const char *zVfs /* Name of VFS module to use */
|
||||
);
|
||||
|
||||
/*
|
||||
** CAPI3REF: Obtain Values For URI Parameters
|
||||
**
|
||||
** This is a utility routine, useful to VFS implementations, that checks
|
||||
** to see if a database file was a URI that contained a specific query
|
||||
** parameter, and if so obtains the value of the query parameter.
|
||||
**
|
||||
** The zFilename argument is the filename pointer passed into the xOpen()
|
||||
** method of a VFS implementation. The zParam argument is the name of the
|
||||
** query parameter we seek. This routine returns the value of the zParam
|
||||
** parameter if it exists. If the parameter does not exist, this routine
|
||||
** returns a NULL pointer.
|
||||
**
|
||||
** If the zFilename argument to this function is not a pointer that SQLite
|
||||
** passed into the xOpen VFS method, then the behavior of this routine
|
||||
** is undefined and probably undesirable.
|
||||
*/
|
||||
SQLITE_API const char *sqlite3_uri_parameter(const char *zFilename, const char *zParam);
|
||||
|
||||
|
||||
/*
|
||||
** CAPI3REF: Error Codes And Messages
|
||||
**
|
||||
|
|
@ -2539,43 +2695,45 @@ SQLITE_API int sqlite3_limit(sqlite3*, int id, int newVal);
|
|||
** Additional information is available at [limits | Limits in SQLite].
|
||||
**
|
||||
** <dl>
|
||||
** ^(<dt>SQLITE_LIMIT_LENGTH</dt>
|
||||
** [[SQLITE_LIMIT_LENGTH]] ^(<dt>SQLITE_LIMIT_LENGTH</dt>
|
||||
** <dd>The maximum size of any string or BLOB or table row, in bytes.<dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_LIMIT_SQL_LENGTH</dt>
|
||||
** [[SQLITE_LIMIT_SQL_LENGTH]] ^(<dt>SQLITE_LIMIT_SQL_LENGTH</dt>
|
||||
** <dd>The maximum length of an SQL statement, in bytes.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_LIMIT_COLUMN</dt>
|
||||
** [[SQLITE_LIMIT_COLUMN]] ^(<dt>SQLITE_LIMIT_COLUMN</dt>
|
||||
** <dd>The maximum number of columns in a table definition or in the
|
||||
** result set of a [SELECT] or the maximum number of columns in an index
|
||||
** or in an ORDER BY or GROUP BY clause.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_LIMIT_EXPR_DEPTH</dt>
|
||||
** [[SQLITE_LIMIT_EXPR_DEPTH]] ^(<dt>SQLITE_LIMIT_EXPR_DEPTH</dt>
|
||||
** <dd>The maximum depth of the parse tree on any expression.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_LIMIT_COMPOUND_SELECT</dt>
|
||||
** [[SQLITE_LIMIT_COMPOUND_SELECT]] ^(<dt>SQLITE_LIMIT_COMPOUND_SELECT</dt>
|
||||
** <dd>The maximum number of terms in a compound SELECT statement.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_LIMIT_VDBE_OP</dt>
|
||||
** [[SQLITE_LIMIT_VDBE_OP]] ^(<dt>SQLITE_LIMIT_VDBE_OP</dt>
|
||||
** <dd>The maximum number of instructions in a virtual machine program
|
||||
** used to implement an SQL statement. This limit is not currently
|
||||
** enforced, though that might be added in some future release of
|
||||
** SQLite.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_LIMIT_FUNCTION_ARG</dt>
|
||||
** [[SQLITE_LIMIT_FUNCTION_ARG]] ^(<dt>SQLITE_LIMIT_FUNCTION_ARG</dt>
|
||||
** <dd>The maximum number of arguments on a function.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_LIMIT_ATTACHED</dt>
|
||||
** [[SQLITE_LIMIT_ATTACHED]] ^(<dt>SQLITE_LIMIT_ATTACHED</dt>
|
||||
** <dd>The maximum number of [ATTACH | attached databases].)^</dd>
|
||||
**
|
||||
** [[SQLITE_LIMIT_LIKE_PATTERN_LENGTH]]
|
||||
** ^(<dt>SQLITE_LIMIT_LIKE_PATTERN_LENGTH</dt>
|
||||
** <dd>The maximum length of the pattern argument to the [LIKE] or
|
||||
** [GLOB] operators.</dd>)^
|
||||
**
|
||||
** [[SQLITE_LIMIT_VARIABLE_NUMBER]]
|
||||
** ^(<dt>SQLITE_LIMIT_VARIABLE_NUMBER</dt>
|
||||
** <dd>The maximum index number of any [parameter] in an SQL statement.)^
|
||||
**
|
||||
** ^(<dt>SQLITE_LIMIT_TRIGGER_DEPTH</dt>
|
||||
** [[SQLITE_LIMIT_TRIGGER_DEPTH]] ^(<dt>SQLITE_LIMIT_TRIGGER_DEPTH</dt>
|
||||
** <dd>The maximum depth of recursion for triggers.</dd>)^
|
||||
** </dl>
|
||||
*/
|
||||
|
|
@ -3104,7 +3262,7 @@ SQLITE_API const void *sqlite3_column_decltype16(sqlite3_stmt*,int);
|
|||
** ^[SQLITE_BUSY] means that the database engine was unable to acquire the
|
||||
** database locks it needs to do its job. ^If the statement is a [COMMIT]
|
||||
** or occurs outside of an explicit transaction, then you can retry the
|
||||
** statement. If the statement is not a [COMMIT] and occurs within a
|
||||
** statement. If the statement is not a [COMMIT] and occurs within an
|
||||
** explicit transaction then you should rollback the transaction before
|
||||
** continuing.
|
||||
**
|
||||
|
|
@ -3383,7 +3541,7 @@ SQLITE_API sqlite3_value *sqlite3_column_value(sqlite3_stmt*, int iCol);
|
|||
** CAPI3REF: Destroy A Prepared Statement Object
|
||||
**
|
||||
** ^The sqlite3_finalize() function is called to delete a [prepared statement].
|
||||
** ^If the most recent evaluation of the statement encountered no errors or
|
||||
** ^If the most recent evaluation of the statement encountered no errors
|
||||
** or if the statement is never been evaluated, then sqlite3_finalize() returns
|
||||
** SQLITE_OK. ^If the most recent evaluation of statement S failed, then
|
||||
** sqlite3_finalize(S) returns the appropriate [error code] or
|
||||
|
|
@ -4610,6 +4768,11 @@ struct sqlite3_module {
|
|||
void (**pxFunc)(sqlite3_context*,int,sqlite3_value**),
|
||||
void **ppArg);
|
||||
int (*xRename)(sqlite3_vtab *pVtab, const char *zNew);
|
||||
/* The methods above are in version 1 of the sqlite_module object. Those
|
||||
** below are for version 2 and greater. */
|
||||
int (*xSavepoint)(sqlite3_vtab *pVTab, int);
|
||||
int (*xRelease)(sqlite3_vtab *pVTab, int);
|
||||
int (*xRollbackTo)(sqlite3_vtab *pVTab, int);
|
||||
};
|
||||
|
||||
/*
|
||||
|
|
@ -5292,7 +5455,7 @@ struct sqlite3_mutex_methods {
|
|||
**
|
||||
** ^If the argument to sqlite3_mutex_held() is a NULL pointer then
|
||||
** the routine should return 1. This seems counter-intuitive since
|
||||
** clearly the mutex cannot be held if it does not exist. But the
|
||||
** clearly the mutex cannot be held if it does not exist. But
|
||||
** the reason the mutex does not exist is because the build is not
|
||||
** using mutexes. And we do not want the assert() containing the
|
||||
** call to sqlite3_mutex_held() to fail, so a non-zero return is
|
||||
|
|
@ -5415,7 +5578,8 @@ SQLITE_API int sqlite3_test_control(int op, ...);
|
|||
#define SQLITE_TESTCTRL_ISKEYWORD 16
|
||||
#define SQLITE_TESTCTRL_PGHDRSZ 17
|
||||
#define SQLITE_TESTCTRL_SCRATCHMALLOC 18
|
||||
#define SQLITE_TESTCTRL_LAST 18
|
||||
#define SQLITE_TESTCTRL_LOCALTIME_FAULT 19
|
||||
#define SQLITE_TESTCTRL_LAST 19
|
||||
|
||||
/*
|
||||
** CAPI3REF: SQLite Runtime Status
|
||||
|
|
@ -5424,7 +5588,7 @@ SQLITE_API int sqlite3_test_control(int op, ...);
|
|||
** about the performance of SQLite, and optionally to reset various
|
||||
** highwater marks. ^The first argument is an integer code for
|
||||
** the specific parameter to measure. ^(Recognized integer codes
|
||||
** are of the form [SQLITE_STATUS_MEMORY_USED | SQLITE_STATUS_...].)^
|
||||
** are of the form [status parameters | SQLITE_STATUS_...].)^
|
||||
** ^The current value of the parameter is returned into *pCurrent.
|
||||
** ^The highest recorded value is returned in *pHighwater. ^If the
|
||||
** resetFlag is true, then the highest record value is reset after
|
||||
|
|
@ -5451,12 +5615,13 @@ SQLITE_API int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetF
|
|||
|
||||
/*
|
||||
** CAPI3REF: Status Parameters
|
||||
** KEYWORDS: {status parameters}
|
||||
**
|
||||
** These integer constants designate various run-time status parameters
|
||||
** that can be returned by [sqlite3_status()].
|
||||
**
|
||||
** <dl>
|
||||
** ^(<dt>SQLITE_STATUS_MEMORY_USED</dt>
|
||||
** [[SQLITE_STATUS_MEMORY_USED]] ^(<dt>SQLITE_STATUS_MEMORY_USED</dt>
|
||||
** <dd>This parameter is the current amount of memory checked out
|
||||
** using [sqlite3_malloc()], either directly or indirectly. The
|
||||
** figure includes calls made to [sqlite3_malloc()] by the application
|
||||
|
|
@ -5466,23 +5631,24 @@ SQLITE_API int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetF
|
|||
** this parameter. The amount returned is the sum of the allocation
|
||||
** sizes as reported by the xSize method in [sqlite3_mem_methods].</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_STATUS_MALLOC_SIZE</dt>
|
||||
** [[SQLITE_STATUS_MALLOC_SIZE]] ^(<dt>SQLITE_STATUS_MALLOC_SIZE</dt>
|
||||
** <dd>This parameter records the largest memory allocation request
|
||||
** handed to [sqlite3_malloc()] or [sqlite3_realloc()] (or their
|
||||
** internal equivalents). Only the value returned in the
|
||||
** *pHighwater parameter to [sqlite3_status()] is of interest.
|
||||
** The value written into the *pCurrent parameter is undefined.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_STATUS_MALLOC_COUNT</dt>
|
||||
** [[SQLITE_STATUS_MALLOC_COUNT]] ^(<dt>SQLITE_STATUS_MALLOC_COUNT</dt>
|
||||
** <dd>This parameter records the number of separate memory allocations
|
||||
** currently checked out.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_STATUS_PAGECACHE_USED</dt>
|
||||
** [[SQLITE_STATUS_PAGECACHE_USED]] ^(<dt>SQLITE_STATUS_PAGECACHE_USED</dt>
|
||||
** <dd>This parameter returns the number of pages used out of the
|
||||
** [pagecache memory allocator] that was configured using
|
||||
** [SQLITE_CONFIG_PAGECACHE]. The
|
||||
** value returned is in pages, not in bytes.</dd>)^
|
||||
**
|
||||
** [[SQLITE_STATUS_PAGECACHE_OVERFLOW]]
|
||||
** ^(<dt>SQLITE_STATUS_PAGECACHE_OVERFLOW</dt>
|
||||
** <dd>This parameter returns the number of bytes of page cache
|
||||
** allocation which could not be satisfied by the [SQLITE_CONFIG_PAGECACHE]
|
||||
|
|
@ -5492,13 +5658,13 @@ SQLITE_API int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetF
|
|||
** [SQLITE_CONFIG_PAGECACHE]) and allocations that overflowed because
|
||||
** no space was left in the page cache.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_STATUS_PAGECACHE_SIZE</dt>
|
||||
** [[SQLITE_STATUS_PAGECACHE_SIZE]] ^(<dt>SQLITE_STATUS_PAGECACHE_SIZE</dt>
|
||||
** <dd>This parameter records the largest memory allocation request
|
||||
** handed to [pagecache memory allocator]. Only the value returned in the
|
||||
** *pHighwater parameter to [sqlite3_status()] is of interest.
|
||||
** The value written into the *pCurrent parameter is undefined.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_STATUS_SCRATCH_USED</dt>
|
||||
** [[SQLITE_STATUS_SCRATCH_USED]] ^(<dt>SQLITE_STATUS_SCRATCH_USED</dt>
|
||||
** <dd>This parameter returns the number of allocations used out of the
|
||||
** [scratch memory allocator] configured using
|
||||
** [SQLITE_CONFIG_SCRATCH]. The value returned is in allocations, not
|
||||
|
|
@ -5506,7 +5672,7 @@ SQLITE_API int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetF
|
|||
** outstanding at time, this parameter also reports the number of threads
|
||||
** using scratch memory at the same time.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_STATUS_SCRATCH_OVERFLOW</dt>
|
||||
** [[SQLITE_STATUS_SCRATCH_OVERFLOW]] ^(<dt>SQLITE_STATUS_SCRATCH_OVERFLOW</dt>
|
||||
** <dd>This parameter returns the number of bytes of scratch memory
|
||||
** allocation which could not be satisfied by the [SQLITE_CONFIG_SCRATCH]
|
||||
** buffer and where forced to overflow to [sqlite3_malloc()]. The values
|
||||
|
|
@ -5516,13 +5682,13 @@ SQLITE_API int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetF
|
|||
** slots were available.
|
||||
** </dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_STATUS_SCRATCH_SIZE</dt>
|
||||
** [[SQLITE_STATUS_SCRATCH_SIZE]] ^(<dt>SQLITE_STATUS_SCRATCH_SIZE</dt>
|
||||
** <dd>This parameter records the largest memory allocation request
|
||||
** handed to [scratch memory allocator]. Only the value returned in the
|
||||
** *pHighwater parameter to [sqlite3_status()] is of interest.
|
||||
** The value written into the *pCurrent parameter is undefined.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_STATUS_PARSER_STACK</dt>
|
||||
** [[SQLITE_STATUS_PARSER_STACK]] ^(<dt>SQLITE_STATUS_PARSER_STACK</dt>
|
||||
** <dd>This parameter records the deepest parser stack. It is only
|
||||
** meaningful if SQLite is compiled with [YYTRACKMAXSTACKDEPTH].</dd>)^
|
||||
** </dl>
|
||||
|
|
@ -5547,9 +5713,9 @@ SQLITE_API int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetF
|
|||
** about a single [database connection]. ^The first argument is the
|
||||
** database connection object to be interrogated. ^The second argument
|
||||
** is an integer constant, taken from the set of
|
||||
** [SQLITE_DBSTATUS_LOOKASIDE_USED | SQLITE_DBSTATUS_*] macros, that
|
||||
** [SQLITE_DBSTATUS options], that
|
||||
** determines the parameter to interrogate. The set of
|
||||
** [SQLITE_DBSTATUS_LOOKASIDE_USED | SQLITE_DBSTATUS_*] macros is likely
|
||||
** [SQLITE_DBSTATUS options] is likely
|
||||
** to grow in future releases of SQLite.
|
||||
**
|
||||
** ^The current value of the requested parameter is written into *pCur
|
||||
|
|
@ -5566,6 +5732,7 @@ SQLITE_API int sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int r
|
|||
|
||||
/*
|
||||
** CAPI3REF: Status Parameters for database connections
|
||||
** KEYWORDS: {SQLITE_DBSTATUS options}
|
||||
**
|
||||
** These constants are the available integer "verbs" that can be passed as
|
||||
** the second argument to the [sqlite3_db_status()] interface.
|
||||
|
|
@ -5577,15 +5744,16 @@ SQLITE_API int sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int r
|
|||
** if a discontinued or unsupported verb is invoked.
|
||||
**
|
||||
** <dl>
|
||||
** ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_USED</dt>
|
||||
** [[SQLITE_DBSTATUS_LOOKASIDE_USED]] ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_USED</dt>
|
||||
** <dd>This parameter returns the number of lookaside memory slots currently
|
||||
** checked out.</dd>)^
|
||||
**
|
||||
** ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_HIT</dt>
|
||||
** [[SQLITE_DBSTATUS_LOOKASIDE_HIT]] ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_HIT</dt>
|
||||
** <dd>This parameter returns the number malloc attempts that were
|
||||
** satisfied using lookaside memory. Only the high-water value is meaningful;
|
||||
** the current value is always zero.)^
|
||||
**
|
||||
** [[SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE]]
|
||||
** ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE</dt>
|
||||
** <dd>This parameter returns the number malloc attempts that might have
|
||||
** been satisfied using lookaside memory but failed due to the amount of
|
||||
|
|
@ -5593,6 +5761,7 @@ SQLITE_API int sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int r
|
|||
** Only the high-water value is meaningful;
|
||||
** the current value is always zero.)^
|
||||
**
|
||||
** [[SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL]]
|
||||
** ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL</dt>
|
||||
** <dd>This parameter returns the number malloc attempts that might have
|
||||
** been satisfied using lookaside memory but failed due to all lookaside
|
||||
|
|
@ -5600,12 +5769,12 @@ SQLITE_API int sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int r
|
|||
** Only the high-water value is meaningful;
|
||||
** the current value is always zero.)^
|
||||
**
|
||||
** ^(<dt>SQLITE_DBSTATUS_CACHE_USED</dt>
|
||||
** [[SQLITE_DBSTATUS_CACHE_USED]] ^(<dt>SQLITE_DBSTATUS_CACHE_USED</dt>
|
||||
** <dd>This parameter returns the approximate number of of bytes of heap
|
||||
** memory used by all pager caches associated with the database connection.)^
|
||||
** ^The highwater mark associated with SQLITE_DBSTATUS_CACHE_USED is always 0.
|
||||
**
|
||||
** ^(<dt>SQLITE_DBSTATUS_SCHEMA_USED</dt>
|
||||
** [[SQLITE_DBSTATUS_SCHEMA_USED]] ^(<dt>SQLITE_DBSTATUS_SCHEMA_USED</dt>
|
||||
** <dd>This parameter returns the approximate number of of bytes of heap
|
||||
** memory used to store the schema for all databases associated
|
||||
** with the connection - main, temp, and any [ATTACH]-ed databases.)^
|
||||
|
|
@ -5614,7 +5783,7 @@ SQLITE_API int sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int r
|
|||
** [shared cache mode] being enabled.
|
||||
** ^The highwater mark associated with SQLITE_DBSTATUS_SCHEMA_USED is always 0.
|
||||
**
|
||||
** ^(<dt>SQLITE_DBSTATUS_STMT_USED</dt>
|
||||
** [[SQLITE_DBSTATUS_STMT_USED]] ^(<dt>SQLITE_DBSTATUS_STMT_USED</dt>
|
||||
** <dd>This parameter returns the approximate number of of bytes of heap
|
||||
** and lookaside memory used by all prepared statements associated with
|
||||
** the database connection.)^
|
||||
|
|
@ -5636,7 +5805,7 @@ SQLITE_API int sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int r
|
|||
** CAPI3REF: Prepared Statement Status
|
||||
**
|
||||
** ^(Each prepared statement maintains various
|
||||
** [SQLITE_STMTSTATUS_SORT | counters] that measure the number
|
||||
** [SQLITE_STMTSTATUS counters] that measure the number
|
||||
** of times it has performed specific operations.)^ These counters can
|
||||
** be used to monitor the performance characteristics of the prepared
|
||||
** statements. For example, if the number of table steps greatly exceeds
|
||||
|
|
@ -5647,7 +5816,7 @@ SQLITE_API int sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int r
|
|||
** ^(This interface is used to retrieve and reset counter values from
|
||||
** a [prepared statement]. The first argument is the prepared statement
|
||||
** object to be interrogated. The second argument
|
||||
** is an integer code for a specific [SQLITE_STMTSTATUS_SORT | counter]
|
||||
** is an integer code for a specific [SQLITE_STMTSTATUS counter]
|
||||
** to be interrogated.)^
|
||||
** ^The current value of the requested counter is returned.
|
||||
** ^If the resetFlg is true, then the counter is reset to zero after this
|
||||
|
|
@ -5659,24 +5828,25 @@ SQLITE_API int sqlite3_stmt_status(sqlite3_stmt*, int op,int resetFlg);
|
|||
|
||||
/*
|
||||
** CAPI3REF: Status Parameters for prepared statements
|
||||
** KEYWORDS: {SQLITE_STMTSTATUS counter} {SQLITE_STMTSTATUS counters}
|
||||
**
|
||||
** These preprocessor macros define integer codes that name counter
|
||||
** values associated with the [sqlite3_stmt_status()] interface.
|
||||
** The meanings of the various counters are as follows:
|
||||
**
|
||||
** <dl>
|
||||
** <dt>SQLITE_STMTSTATUS_FULLSCAN_STEP</dt>
|
||||
** [[SQLITE_STMTSTATUS_FULLSCAN_STEP]] <dt>SQLITE_STMTSTATUS_FULLSCAN_STEP</dt>
|
||||
** <dd>^This is the number of times that SQLite has stepped forward in
|
||||
** a table as part of a full table scan. Large numbers for this counter
|
||||
** may indicate opportunities for performance improvement through
|
||||
** careful use of indices.</dd>
|
||||
**
|
||||
** <dt>SQLITE_STMTSTATUS_SORT</dt>
|
||||
** [[SQLITE_STMTSTATUS_SORT]] <dt>SQLITE_STMTSTATUS_SORT</dt>
|
||||
** <dd>^This is the number of sort operations that have occurred.
|
||||
** A non-zero value in this counter may indicate an opportunity to
|
||||
** improvement performance through careful use of indices.</dd>
|
||||
**
|
||||
** <dt>SQLITE_STMTSTATUS_AUTOINDEX</dt>
|
||||
** [[SQLITE_STMTSTATUS_AUTOINDEX]] <dt>SQLITE_STMTSTATUS_AUTOINDEX</dt>
|
||||
** <dd>^This is the number of rows inserted into transient indices that
|
||||
** were created automatically in order to help joins run faster.
|
||||
** A non-zero value in this counter may indicate an opportunity to
|
||||
|
|
@ -5727,6 +5897,7 @@ typedef struct sqlite3_pcache sqlite3_pcache;
|
|||
** the application may discard the parameter after the call to
|
||||
** [sqlite3_config()] returns.)^
|
||||
**
|
||||
** [[the xInit() page cache method]]
|
||||
** ^(The xInit() method is called once for each effective
|
||||
** call to [sqlite3_initialize()])^
|
||||
** (usually only once during the lifetime of the process). ^(The xInit()
|
||||
|
|
@ -5737,6 +5908,7 @@ typedef struct sqlite3_pcache sqlite3_pcache;
|
|||
** built-in default page cache is used instead of the application defined
|
||||
** page cache.)^
|
||||
**
|
||||
** [[the xShutdown() page cache method]]
|
||||
** ^The xShutdown() method is called by [sqlite3_shutdown()].
|
||||
** It can be used to clean up
|
||||
** any outstanding resources before process shutdown, if required.
|
||||
|
|
@ -5751,6 +5923,7 @@ typedef struct sqlite3_pcache sqlite3_pcache;
|
|||
** ^SQLite will never invoke xInit() more than once without an intervening
|
||||
** call to xShutdown().
|
||||
**
|
||||
** [[the xCreate() page cache methods]]
|
||||
** ^SQLite invokes the xCreate() method to construct a new cache instance.
|
||||
** SQLite will typically create one cache instance for each open database file,
|
||||
** though this is not guaranteed. ^The
|
||||
|
|
@ -5775,6 +5948,7 @@ typedef struct sqlite3_pcache sqlite3_pcache;
|
|||
** ^Hence, a cache created with bPurgeable false will
|
||||
** never contain any unpinned pages.
|
||||
**
|
||||
** [[the xCachesize() page cache method]]
|
||||
** ^(The xCachesize() method may be called at any time by SQLite to set the
|
||||
** suggested maximum cache-size (number of pages stored by) the cache
|
||||
** instance passed as the first argument. This is the value configured using
|
||||
|
|
@ -5782,14 +5956,16 @@ typedef struct sqlite3_pcache sqlite3_pcache;
|
|||
** parameter, the implementation is not required to do anything with this
|
||||
** value; it is advisory only.
|
||||
**
|
||||
** [[the xPagecount() page cache methods]]
|
||||
** The xPagecount() method must return the number of pages currently
|
||||
** stored in the cache, both pinned and unpinned.
|
||||
**
|
||||
** [[the xFetch() page cache methods]]
|
||||
** The xFetch() method locates a page in the cache and returns a pointer to
|
||||
** the page, or a NULL pointer.
|
||||
** A "page", in this context, means a buffer of szPage bytes aligned at an
|
||||
** 8-byte boundary. The page to be fetched is determined by the key. ^The
|
||||
** mimimum key value is 1. After it has been retrieved using xFetch, the page
|
||||
** minimum key value is 1. After it has been retrieved using xFetch, the page
|
||||
** is considered to be "pinned".
|
||||
**
|
||||
** If the requested page is already in the page cache, then the page cache
|
||||
|
|
@ -5813,6 +5989,7 @@ typedef struct sqlite3_pcache sqlite3_pcache;
|
|||
** attempt to unpin one or more cache pages by spilling the content of
|
||||
** pinned pages to disk and synching the operating system disk cache.
|
||||
**
|
||||
** [[the xUnpin() page cache method]]
|
||||
** ^xUnpin() is called by SQLite with a pointer to a currently pinned page
|
||||
** as its second argument. If the third parameter, discard, is non-zero,
|
||||
** then the page must be evicted from the cache.
|
||||
|
|
@ -5825,6 +6002,7 @@ typedef struct sqlite3_pcache sqlite3_pcache;
|
|||
** call to xUnpin() unpins the page regardless of the number of prior calls
|
||||
** to xFetch().
|
||||
**
|
||||
** [[the xRekey() page cache methods]]
|
||||
** The xRekey() method is used to change the key value associated with the
|
||||
** page passed as the second argument. If the cache
|
||||
** previously contains an entry associated with newKey, it must be
|
||||
|
|
@ -5837,6 +6015,7 @@ typedef struct sqlite3_pcache sqlite3_pcache;
|
|||
** of these pages are pinned, they are implicitly unpinned, meaning that
|
||||
** they can be safely discarded.
|
||||
**
|
||||
** [[the xDestroy() page cache method]]
|
||||
** ^The xDestroy() method is used to delete a cache allocated by xCreate().
|
||||
** All resources associated with the specified cache should be freed. ^After
|
||||
** calling the xDestroy() method, SQLite considers the [sqlite3_pcache*]
|
||||
|
|
@ -5899,7 +6078,7 @@ typedef struct sqlite3_backup sqlite3_backup;
|
|||
** There should be exactly one call to sqlite3_backup_finish() for each
|
||||
** successful call to sqlite3_backup_init().
|
||||
**
|
||||
** <b>sqlite3_backup_init()</b>
|
||||
** [[sqlite3_backup_init()]] <b>sqlite3_backup_init()</b>
|
||||
**
|
||||
** ^The D and N arguments to sqlite3_backup_init(D,N,S,M) are the
|
||||
** [database connection] associated with the destination database
|
||||
|
|
@ -5926,7 +6105,7 @@ typedef struct sqlite3_backup sqlite3_backup;
|
|||
** sqlite3_backup_finish() functions to perform the specified backup
|
||||
** operation.
|
||||
**
|
||||
** <b>sqlite3_backup_step()</b>
|
||||
** [[sqlite3_backup_step()]] <b>sqlite3_backup_step()</b>
|
||||
**
|
||||
** ^Function sqlite3_backup_step(B,N) will copy up to N pages between
|
||||
** the source and destination databases specified by [sqlite3_backup] object B.
|
||||
|
|
@ -5983,7 +6162,7 @@ typedef struct sqlite3_backup sqlite3_backup;
|
|||
** by the backup operation, then the backup database is automatically
|
||||
** updated at the same time.
|
||||
**
|
||||
** <b>sqlite3_backup_finish()</b>
|
||||
** [[sqlite3_backup_finish()]] <b>sqlite3_backup_finish()</b>
|
||||
**
|
||||
** When sqlite3_backup_step() has returned [SQLITE_DONE], or when the
|
||||
** application wishes to abandon the backup operation, the application
|
||||
|
|
@ -6006,7 +6185,8 @@ typedef struct sqlite3_backup sqlite3_backup;
|
|||
** is not a permanent error and does not affect the return value of
|
||||
** sqlite3_backup_finish().
|
||||
**
|
||||
** <b>sqlite3_backup_remaining(), sqlite3_backup_pagecount()</b>
|
||||
** [[sqlite3_backup__remaining()]] [[sqlite3_backup_pagecount()]]
|
||||
** <b>sqlite3_backup_remaining() and sqlite3_backup_pagecount()</b>
|
||||
**
|
||||
** ^Each call to sqlite3_backup_step() sets two values inside
|
||||
** the [sqlite3_backup] object: the number of pages still to be backed
|
||||
|
|
@ -6392,6 +6572,93 @@ SQLITE_API int sqlite3_wal_checkpoint_v2(
|
|||
#define SQLITE_CHECKPOINT_FULL 1
|
||||
#define SQLITE_CHECKPOINT_RESTART 2
|
||||
|
||||
/*
|
||||
** CAPI3REF: Virtual Table Interface Configuration
|
||||
**
|
||||
** This function may be called by either the [xConnect] or [xCreate] method
|
||||
** of a [virtual table] implementation to configure
|
||||
** various facets of the virtual table interface.
|
||||
**
|
||||
** If this interface is invoked outside the context of an xConnect or
|
||||
** xCreate virtual table method then the behavior is undefined.
|
||||
**
|
||||
** At present, there is only one option that may be configured using
|
||||
** this function. (See [SQLITE_VTAB_CONSTRAINT_SUPPORT].) Further options
|
||||
** may be added in the future.
|
||||
*/
|
||||
SQLITE_API int sqlite3_vtab_config(sqlite3*, int op, ...);
|
||||
|
||||
/*
|
||||
** CAPI3REF: Virtual Table Configuration Options
|
||||
**
|
||||
** These macros define the various options to the
|
||||
** [sqlite3_vtab_config()] interface that [virtual table] implementations
|
||||
** can use to customize and optimize their behavior.
|
||||
**
|
||||
** <dl>
|
||||
** <dt>SQLITE_VTAB_CONSTRAINT_SUPPORT
|
||||
** <dd>Calls of the form
|
||||
** [sqlite3_vtab_config](db,SQLITE_VTAB_CONSTRAINT_SUPPORT,X) are supported,
|
||||
** where X is an integer. If X is zero, then the [virtual table] whose
|
||||
** [xCreate] or [xConnect] method invoked [sqlite3_vtab_config()] does not
|
||||
** support constraints. In this configuration (which is the default) if
|
||||
** a call to the [xUpdate] method returns [SQLITE_CONSTRAINT], then the entire
|
||||
** statement is rolled back as if [ON CONFLICT | OR ABORT] had been
|
||||
** specified as part of the users SQL statement, regardless of the actual
|
||||
** ON CONFLICT mode specified.
|
||||
**
|
||||
** If X is non-zero, then the virtual table implementation guarantees
|
||||
** that if [xUpdate] returns [SQLITE_CONSTRAINT], it will do so before
|
||||
** any modifications to internal or persistent data structures have been made.
|
||||
** If the [ON CONFLICT] mode is ABORT, FAIL, IGNORE or ROLLBACK, SQLite
|
||||
** is able to roll back a statement or database transaction, and abandon
|
||||
** or continue processing the current SQL statement as appropriate.
|
||||
** If the ON CONFLICT mode is REPLACE and the [xUpdate] method returns
|
||||
** [SQLITE_CONSTRAINT], SQLite handles this as if the ON CONFLICT mode
|
||||
** had been ABORT.
|
||||
**
|
||||
** Virtual table implementations that are required to handle OR REPLACE
|
||||
** must do so within the [xUpdate] method. If a call to the
|
||||
** [sqlite3_vtab_on_conflict()] function indicates that the current ON
|
||||
** CONFLICT policy is REPLACE, the virtual table implementation should
|
||||
** silently replace the appropriate rows within the xUpdate callback and
|
||||
** return SQLITE_OK. Or, if this is not possible, it may return
|
||||
** SQLITE_CONSTRAINT, in which case SQLite falls back to OR ABORT
|
||||
** constraint handling.
|
||||
** </dl>
|
||||
*/
|
||||
#define SQLITE_VTAB_CONSTRAINT_SUPPORT 1
|
||||
|
||||
/*
|
||||
** CAPI3REF: Determine The Virtual Table Conflict Policy
|
||||
**
|
||||
** This function may only be called from within a call to the [xUpdate] method
|
||||
** of a [virtual table] implementation for an INSERT or UPDATE operation. ^The
|
||||
** value returned is one of [SQLITE_ROLLBACK], [SQLITE_IGNORE], [SQLITE_FAIL],
|
||||
** [SQLITE_ABORT], or [SQLITE_REPLACE], according to the [ON CONFLICT] mode
|
||||
** of the SQL statement that triggered the call to the [xUpdate] method of the
|
||||
** [virtual table].
|
||||
*/
|
||||
SQLITE_API int sqlite3_vtab_on_conflict(sqlite3 *);
|
||||
|
||||
/*
|
||||
** CAPI3REF: Conflict resolution modes
|
||||
**
|
||||
** These constants are returned by [sqlite3_vtab_on_conflict()] to
|
||||
** inform a [virtual table] implementation what the [ON CONFLICT] mode
|
||||
** is for the SQL statement being evaluated.
|
||||
**
|
||||
** Note that the [SQLITE_IGNORE] constant is also used as a potential
|
||||
** return value from the [sqlite3_set_authorizer()] callback and that
|
||||
** [SQLITE_ABORT] is also a [result code].
|
||||
*/
|
||||
#define SQLITE_ROLLBACK 1
|
||||
/* #define SQLITE_IGNORE 2 // Also used by sqlite3_authorizer() callback */
|
||||
#define SQLITE_FAIL 3
|
||||
/* #define SQLITE_ABORT 4 // Also an error code */
|
||||
#define SQLITE_REPLACE 5
|
||||
|
||||
|
||||
|
||||
/*
|
||||
** Undo the hack that converts floating point types to integer for
|
||||
|
|
|
|||
Loading…
Reference in New Issue