contrib/sqlite3/sqlite3.c

16095 ** Call it a "virtual meta value".
16106 #define BTREE_DATA_VERSION        15  /* A virtual meta-value */
44923 ** meta-layer over top of the primitive locking implemented above.  For
63812 ** meta-data associated with pPg (i.e. data stored in the nExtra bytes
69172 **     40      60     15 4-byte meta values passed to higher layers
80029     /* Read the value of meta[3] from the database to determine where the
80030     ** root page of the new table should go. meta[3] is the largest root-page
80031     ** created so far, so the new root-page is (meta[3]+1).
80111     /* Update the pointer-map and meta-data with the new root-page number. */
80272 ** The last root page is recorded in meta[3] and the value of
80273 ** meta[3] is updated by this procedure.
80373 ** Read the meta-information out of a database file.  Meta[0]
80375 ** through meta[15] are available for use by higher layers.  Meta[0]
80378 ** The schema layer numbers meta values differently.  At the schema
80386 ** pattern is the same as header meta values, and so it is convenient to
80416 ** Write meta-information back into the database.  Meta[0] is
101137 ** whether meta data associated with a user function argument using the
101156 ** whether meta data associated with a user function argument using the
138487         ** "incremental", write the value of meta[6] in the database
138488         ** file. Before writing to meta[6], check that meta[3] indicates
140857   int meta[5];
140920   /* Get the database meta information.
140923   **    meta[0]   Schema cookie.  Changes with each schema change.
140924   **    meta[1]   File format of schema layer.
140925   **    meta[2]   Size of the page cache.
140926   **    meta[3]   Largest rootpage (auto/incr_vacuum mode)
140927   **    meta[4]   Db text encoding. 1:UTF-8 2:UTF-16LE 3:UTF-16BE
140928   **    meta[5]   User version
140929   **    meta[6]   Incremental vacuum mode
140930   **    meta[7]   unused
140931   **    meta[8]   unused
140932   **    meta[9]   unused
140935   ** the possible values of meta[4].
140937   for(i=0; i<ArraySize(meta); i++){
140938     sqlite3BtreeGetMeta(pDb->pBt, i+1, (u32 *)&meta[i]);
140941     memset(meta, 0, sizeof(meta));
140943   pDb->pSchema->schema_cookie = meta[BTREE_SCHEMA_VERSION-1];
140950   if( meta[BTREE_TEXT_ENCODING-1] ){  /* text encoding */
140955       encoding = (u8)meta[BTREE_TEXT_ENCODING-1] & 3;
140970       if( (meta[BTREE_TEXT_ENCODING-1] & 3)!=ENC(db) ){
140982     size = sqlite3AbsInt32(meta[BTREE_DEFAULT_CACHE_SIZE-1]);
140997   pDb->pSchema->file_format = (u8)meta[BTREE_FILE_FORMAT-1];
141012   if( iDb==0 && meta[BTREE_FILE_FORMAT-1]>=4 ){
141164     ** will be closed immediately after reading the meta-value. */
154022     u32 meta;
154025     /* This array determines which meta meta values are preserved in the
154026     ** vacuum.  Even entries are the meta value number and odd entries
154027     ** are an increment to apply to the meta value after the vacuum.
154042     /* Copy Btree meta values */
154046       sqlite3BtreeGetMeta(pMain, aCopy[i], &meta);
154047       rc = sqlite3BtreeUpdateMeta(pTemp, aCopy[i], meta+aCopy[i+1]);
182012 ** Return meta information about a specific column of a database table.
182080   /* The following block stores the meta information that will be returned
182088   **        explicitly declared column. Copy meta information from *pCol.
183744 ** The segment directory in table %_segdir stores meta-information for
183756 ** The meta-information in the segment directory is:
194175   ** else we need to reindex.  One solution would be a meta-table to