mirror of https://github.com/sqlite/sqlite
Performance optimization and size reduction in sqlite3RunParser().
FossilOrigin-Name: 41ee2bac5731d8434322e92abba580f7c759a137e576dd286fe01ab23fc440ea
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drh
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b296ab6f6a
commit
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@ -1,5 +1,5 @@
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C Move\sthe\spTriggerPrg\sand\spCleanup\selements\sof\sthe\sParse\sobject\sup\sinto\sthe\nsection\sof\sthat\sobject\sthat\sis\spersisted\sacross\scalls\sto\ssqlite3NestedParse().\nThis\sfixes\sa\smemory\sleak\n[forum:/info/24bd1fef7e9323ef|reported\sin\sforum\spost\s24bd1fef7e9323ef].
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D 2021-12-31T16:37:46.839
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C Performance\soptimization\sand\ssize\sreduction\sin\ssqlite3RunParser().
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D 2021-12-31T17:54:48.326
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F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
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F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
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F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
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@ -545,7 +545,7 @@ F src/pcache.h 4f87acd914cef5016fae3030343540d75f5b85a1877eed1a2a19b9f284248586
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F src/pcache1.c 54881292a9a5db202b2c0ac541c5e3ef9a5e8c4f1c1383adb2601d5499a60e65
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F src/pragma.c c536665ce8431c8b1efbf7e0a5c01852f49f7bf28f1954f8118b2d28e4a3797f
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F src/pragma.h 87330ed2fbfa2a1274de93ca0ab850fba336189228cb256089202c3b52766fad
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F src/prepare.c 40961a1170a4c4151a90dae29dd00fc6c155f1af8246abeeeb8f0a10b3fb9719
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F src/prepare.c 5954136ca8956eb69b515dc383abd38c2277e7c1aec898046955a430bd7243dc
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F src/printf.c 975f1f5417f2526365b6e6d7f22332e3e11806dad844701d92846292b654ba9a
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F src/random.c 097dc8b31b8fba5a9aca1697aeb9fd82078ec91be734c16bffda620ced7ab83c
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F src/resolve.c 359bc0e445d427583d2ab6110433a5dc777f64a0ecdf8d24826d8b475233ead9
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@ -614,7 +614,7 @@ F src/test_windirent.h 90dfbe95442c9762357fe128dc7ae3dc199d006de93eb33ba3972e0a9
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F src/test_window.c cdae419fdcea5bad6dcd9368c685abdad6deb59e9fc8b84b153de513d394ba3f
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F src/test_wsd.c 41cadfd9d97fe8e3e4e44f61a4a8ccd6f7ca8fe9
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F src/threads.c 4ae07fa022a3dc7c5beb373cf744a85d3c5c6c3c
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F src/tokenize.c 865911afa00fed589cd03b25c140ca88544842aaef7b81f7d41ed769a7a54120
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F src/tokenize.c 3c30e91482db69318c05e3d98510922df5d99367aed150ea01e0cd85a0a86171
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F src/treeview.c 9dfdb7ff7f6645d0a6458dbdf4ffac041c071c4533a6db8bb6e502b979ac67bc
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F src/trigger.c eaaba4e34cdce18bf6c633a4536d35e93c62684d3107d5563f0eae209640860c
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F src/update.c d6f5c7b9e072660757ac7d58175aca11c07cb95ebbb297ae7f38853700f52328
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@ -632,7 +632,7 @@ F src/vdbemem.c da4d594084d581be6436582bb44bb128feeb138a3e6c313eda6749ebdc3a65ec
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F src/vdbesort.c 513b481c8bab4a6578c92194a60cf3bc3b48736e4a53f8d2d7918121c5b594e7
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F src/vdbetrace.c fe0bc29ebd4e02c8bc5c1945f1d2e6be5927ec12c06d89b03ef2a4def34bf823
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F src/vdbevtab.c f99b275366c5fc5e2d99f734729880994ab9500bdafde7fae3b02d562b9d323c
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F src/vtab.c 9d5c3f49d3a6959b6eef287bb8fa773563102a80a835c3314c57144412709e78
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F src/vtab.c 0eddd6bed345115fb87961eb591b5dd7466fd5a09bd71cfde8af5845cf1548e8
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F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
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F src/wal.c ed0398a7adf02c31e34aada42cc86c58f413a7afe5f741a5d373ad087abde028
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F src/wal.h c3aa7825bfa2fe0d85bef2db94655f99870a285778baa36307c0a16da32b226a
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@ -1935,8 +1935,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
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F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
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F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
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P f2887e018be71bc406526935c7e99e42f12fc5d1d1c65a89dc2b9bfbca01d43d
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R f92b26ddc80815fd1b38eeec1ac33f28
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P 562805cf488a455cdc57adcb110fef9b5416d813d5eaeabacd28bccb76d7f39d
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R 25305ed262ec223a33704138fc00f328
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U drh
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Z 599b2f8e047fc42e8e3708e7636d643f
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Z 0b5fdf153f96ad1c566fd124031d0ac0
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# Remove this line to create a well-formed Fossil manifest.
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@ -1 +1 @@
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562805cf488a455cdc57adcb110fef9b5416d813d5eaeabacd28bccb76d7f39d
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41ee2bac5731d8434322e92abba580f7c759a137e576dd286fe01ab23fc440ea
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@ -570,6 +570,10 @@ int sqlite3SchemaToIndex(sqlite3 *db, Schema *pSchema){
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*/
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void sqlite3ParserReset(Parse *pParse){
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sqlite3 *db = pParse->db;
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assert( pParse->nested==0 );
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#ifndef SQLITE_OMIT_SHARED_CACHE
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sqlite3DbFree(db, pParse->aTableLock);
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#endif
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while( pParse->pCleanup ){
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ParseCleanup *pCleanup = pParse->pCleanup;
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pParse->pCleanup = pCleanup->pNext;
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@ -686,11 +686,11 @@ int sqlite3RunParser(Parse *pParse, const char *zSql, char **pzErrMsg){
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if( db->mallocFailed ){
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pParse->rc = SQLITE_NOMEM_BKPT;
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}
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if( pParse->rc!=SQLITE_OK && pParse->rc!=SQLITE_DONE && pParse->zErrMsg==0 ){
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pParse->zErrMsg = sqlite3MPrintf(db, "%s", sqlite3ErrStr(pParse->rc));
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}
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assert( pzErrMsg!=0 );
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if( pParse->zErrMsg ){
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if( pParse->zErrMsg || (pParse->rc!=SQLITE_OK && pParse->rc!=SQLITE_DONE) ){
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if( pParse->zErrMsg==0 ){
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pParse->zErrMsg = sqlite3MPrintf(db, "%s", sqlite3ErrStr(pParse->rc));
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}
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*pzErrMsg = pParse->zErrMsg;
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sqlite3_log(pParse->rc, "%s in \"%s\"",
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*pzErrMsg, pParse->zTail);
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@ -698,29 +698,18 @@ int sqlite3RunParser(Parse *pParse, const char *zSql, char **pzErrMsg){
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nErr++;
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}
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pParse->zTail = zSql;
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if( pParse->pVdbe && pParse->nErr>0 && pParse->nested==0 ){
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sqlite3VdbeDelete(pParse->pVdbe);
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pParse->pVdbe = 0;
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}
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#ifndef SQLITE_OMIT_SHARED_CACHE
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if( pParse->nested==0 ){
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sqlite3DbFree(db, pParse->aTableLock);
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pParse->aTableLock = 0;
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pParse->nTableLock = 0;
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}
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#endif
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#ifndef SQLITE_OMIT_VIRTUALTABLE
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sqlite3_free(pParse->apVtabLock);
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#endif
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if( !IN_SPECIAL_PARSE ){
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if( pParse->pNewTable && !IN_SPECIAL_PARSE ){
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/* If the pParse->declareVtab flag is set, do not delete any table
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** structure built up in pParse->pNewTable. The calling code (see vtab.c)
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** will take responsibility for freeing the Table structure.
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*/
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sqlite3DeleteTable(db, pParse->pNewTable);
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}
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if( !IN_RENAME_OBJECT ){
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if( pParse->pNewTrigger && !IN_RENAME_OBJECT ){
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sqlite3DeleteTrigger(db, pParse->pNewTrigger);
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}
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sqlite3DbFree(db, pParse->pVList);
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@ -837,8 +837,8 @@ int sqlite3_declare_vtab(sqlite3 *db, const char *zCreateTable){
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db->init.busy = 0;
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sParse.nQueryLoop = 1;
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if( SQLITE_OK==sqlite3RunParser(&sParse, zCreateTable, &zErr)
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&& sParse.pNewTable
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&& !db->mallocFailed
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&& ALWAYS(sParse.pNewTable!=0)
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&& ALWAYS(!db->mallocFailed)
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&& IsOrdinaryTable(sParse.pNewTable)
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){
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if( !pTab->aCol ){
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