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Changes In Branch dbconfig-defensive Excluding Merge-Ins
This is equivalent to a diff from dcb8c735 to 76094345
2018-11-05
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19:37 | Add the SQLITE_DBCONFIG_DEFENSIVE flag. (check-in: 11d98414 user: drh tags: trunk) | |
13:35 | Fix a assert() in the query planner that can arise when doing row-value operations on a PRIMARY KEY that contains duplicate columns. Ticket [1a84668dcfdebaf12415d]. (check-in: 1309c84a user: drh tags: branch-3.25) | |
2018-11-03
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17:31 | Correct the internal logic for SQLITE_DBCONFIG_DEFENSIVE. (Closed-Leaf check-in: 76094345 user: drh tags: dbconfig-defensive) | |
16:51 | Add extra defenses against strategically corrupt databases to fts3/4. (check-in: d44318f5 user: dan tags: trunk) | |
16:09 | Add the SQLITE_DBCONFIG_DEFENSIVE flag. (check-in: af3f29d4 user: drh tags: dbconfig-defensive) | |
13:11 | Fix a assert() in the query planner that can arise when doing row-value operations on a PRIMARY KEY that contains duplicate columns. Ticket [1a84668dcfdebaf12415d]. (check-in: dcb8c735 user: drh tags: trunk) | |
2018-11-02
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17:38 | Enhance triggers so that they can use table-valued-functions that exist in schemas outside of the schema in which the trigger is defined. (check-in: 1fa74930 user: drh tags: trunk) | |
Changes to src/btree.c.
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3108 3109 3110 3111 3112 3113 3114 | pBt->usableSize = usableSize; pBt->pageSize = pageSize; freeTempSpace(pBt); rc = sqlite3PagerSetPagesize(pBt->pPager, &pBt->pageSize, pageSize-usableSize); return rc; } | | | 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 | pBt->usableSize = usableSize; pBt->pageSize = pageSize; freeTempSpace(pBt); rc = sqlite3PagerSetPagesize(pBt->pPager, &pBt->pageSize, pageSize-usableSize); return rc; } if( sqlite3WritableSchema(pBt->db)==0 && nPage>nPageFile ){ rc = SQLITE_CORRUPT_BKPT; goto page1_init_failed; } /* EVIDENCE-OF: R-28312-64704 However, the usable size is not allowed to ** be less than 480. In other words, if the page size is 512, then the ** reserved space size cannot exceed 32. */ if( usableSize<480 ){ |
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Changes to src/build.c.
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792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 | assert( db->init.iDb==0 || db->init.busy || IN_RENAME_OBJECT || (db->mDbFlags & DBFLAG_Vacuum)!=0); iDb = db->init.iDb; *pUnqual = pName1; } return iDb; } /* ** This routine is used to check if the UTF-8 string zName is a legal ** unqualified name for a new schema object (table, index, view or ** trigger). All names are legal except those that begin with the string ** "sqlite_" (in upper, lower or mixed case). This portion of the namespace ** is reserved for internal use. */ int sqlite3CheckObjectName(Parse *pParse, const char *zName){ if( !pParse->db->init.busy && pParse->nested==0 | > > > > > > > > > > > > > > | | 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 | assert( db->init.iDb==0 || db->init.busy || IN_RENAME_OBJECT || (db->mDbFlags & DBFLAG_Vacuum)!=0); iDb = db->init.iDb; *pUnqual = pName1; } return iDb; } /* ** True if PRAGMA writable_schema is ON */ int sqlite3WritableSchema(sqlite3 *db){ testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==0 ); testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))== SQLITE_WriteSchema ); testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))== SQLITE_Defensive ); testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))== (SQLITE_WriteSchema|SQLITE_Defensive) ); return (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==SQLITE_WriteSchema; } /* ** This routine is used to check if the UTF-8 string zName is a legal ** unqualified name for a new schema object (table, index, view or ** trigger). All names are legal except those that begin with the string ** "sqlite_" (in upper, lower or mixed case). This portion of the namespace ** is reserved for internal use. */ int sqlite3CheckObjectName(Parse *pParse, const char *zName){ if( !pParse->db->init.busy && pParse->nested==0 && sqlite3WritableSchema(pParse->db)==0 && 0==sqlite3StrNICmp(zName, "sqlite_", 7) ){ sqlite3ErrorMsg(pParse, "object name reserved for internal use: %s", zName); return SQLITE_ERROR; } return SQLITE_OK; } |
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Changes to src/dbpage.c.
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309 310 311 312 313 314 315 316 317 318 319 320 321 322 | char *zErr = 0; const char *zSchema; int iDb; Btree *pBt; Pager *pPager; int szPage; if( argc==1 ){ zErr = "cannot delete"; goto update_fail; } pgno = sqlite3_value_int(argv[0]); if( (Pgno)sqlite3_value_int(argv[1])!=pgno ){ zErr = "cannot insert"; | > > > > | 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 | char *zErr = 0; const char *zSchema; int iDb; Btree *pBt; Pager *pPager; int szPage; if( pTab->db->flags & SQLITE_Defensive ){ zErr = "read-only"; goto update_fail; } if( argc==1 ){ zErr = "cannot delete"; goto update_fail; } pgno = sqlite3_value_int(argv[0]); if( (Pgno)sqlite3_value_int(argv[1])!=pgno ){ zErr = "cannot insert"; |
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Changes to src/delete.c.
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59 60 61 62 63 64 65 | ** been specified. ** ** In either case leave an error message in pParse and return non-zero. */ if( ( IsVirtual(pTab) && sqlite3GetVTable(pParse->db, pTab)->pMod->pModule->xUpdate==0 ) || ( (pTab->tabFlags & TF_Readonly)!=0 | | | | 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | ** been specified. ** ** In either case leave an error message in pParse and return non-zero. */ if( ( IsVirtual(pTab) && sqlite3GetVTable(pParse->db, pTab)->pMod->pModule->xUpdate==0 ) || ( (pTab->tabFlags & TF_Readonly)!=0 && sqlite3WritableSchema(pParse->db)==0 && pParse->nested==0) ){ sqlite3ErrorMsg(pParse, "table %s may not be modified", pTab->zName); return 1; } #ifndef SQLITE_OMIT_VIEW if( !viewOk && pTab->pSelect ){ |
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Changes to src/main.c.
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831 832 833 834 835 836 837 838 839 840 841 842 843 844 | { SQLITE_DBCONFIG_ENABLE_TRIGGER, SQLITE_EnableTrigger }, { SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER, SQLITE_Fts3Tokenizer }, { SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION, SQLITE_LoadExtension }, { SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE, SQLITE_NoCkptOnClose }, { SQLITE_DBCONFIG_ENABLE_QPSG, SQLITE_EnableQPSG }, { SQLITE_DBCONFIG_TRIGGER_EQP, SQLITE_TriggerEQP }, { SQLITE_DBCONFIG_RESET_DATABASE, SQLITE_ResetDatabase }, }; unsigned int i; rc = SQLITE_ERROR; /* IMP: R-42790-23372 */ for(i=0; i<ArraySize(aFlagOp); i++){ if( aFlagOp[i].op==op ){ int onoff = va_arg(ap, int); int *pRes = va_arg(ap, int*); | > | 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 | { SQLITE_DBCONFIG_ENABLE_TRIGGER, SQLITE_EnableTrigger }, { SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER, SQLITE_Fts3Tokenizer }, { SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION, SQLITE_LoadExtension }, { SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE, SQLITE_NoCkptOnClose }, { SQLITE_DBCONFIG_ENABLE_QPSG, SQLITE_EnableQPSG }, { SQLITE_DBCONFIG_TRIGGER_EQP, SQLITE_TriggerEQP }, { SQLITE_DBCONFIG_RESET_DATABASE, SQLITE_ResetDatabase }, { SQLITE_DBCONFIG_DEFENSIVE, SQLITE_Defensive }, }; unsigned int i; rc = SQLITE_ERROR; /* IMP: R-42790-23372 */ for(i=0; i<ArraySize(aFlagOp); i++){ if( aFlagOp[i].op==op ){ int onoff = va_arg(ap, int); int *pRes = va_arg(ap, int*); |
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Changes to src/shell.c.in.
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5952 5953 5954 5955 5956 5957 5958 5959 5960 5961 5962 5963 5964 5965 | { "enable_trigger", SQLITE_DBCONFIG_ENABLE_TRIGGER }, { "fts3_tokenizer", SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER }, { "load_extension", SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION }, { "no_ckpt_on_close", SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE }, { "enable_qpsg", SQLITE_DBCONFIG_ENABLE_QPSG }, { "trigger_eqp", SQLITE_DBCONFIG_TRIGGER_EQP }, { "reset_database", SQLITE_DBCONFIG_RESET_DATABASE }, }; int ii, v; open_db(p, 0); for(ii=0; ii<ArraySize(aDbConfig); ii++){ if( nArg>1 && strcmp(azArg[1], aDbConfig[ii].zName)!=0 ) continue; if( nArg>=3 ){ sqlite3_db_config(p->db, aDbConfig[ii].op, booleanValue(azArg[2]), 0); | > | 5952 5953 5954 5955 5956 5957 5958 5959 5960 5961 5962 5963 5964 5965 5966 | { "enable_trigger", SQLITE_DBCONFIG_ENABLE_TRIGGER }, { "fts3_tokenizer", SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER }, { "load_extension", SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION }, { "no_ckpt_on_close", SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE }, { "enable_qpsg", SQLITE_DBCONFIG_ENABLE_QPSG }, { "trigger_eqp", SQLITE_DBCONFIG_TRIGGER_EQP }, { "reset_database", SQLITE_DBCONFIG_RESET_DATABASE }, { "defensive", SQLITE_DBCONFIG_DEFENSIVE }, }; int ii, v; open_db(p, 0); for(ii=0; ii<ArraySize(aDbConfig); ii++){ if( nArg>1 && strcmp(azArg[1], aDbConfig[ii].zName)!=0 ) continue; if( nArg>=3 ){ sqlite3_db_config(p->db, aDbConfig[ii].op, booleanValue(azArg[2]), 0); |
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Changes to src/sqlite.h.in.
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2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 | ** <li> sqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 1, 0); ** <li> [sqlite3_exec](db, "[VACUUM]", 0, 0, 0); ** <li> sqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 0, 0); ** </ol> ** Because resetting a database is destructive and irreversible, the ** process requires the use of this obscure API and multiple steps to help ** ensure that it does not happen by accident. ** </dd> ** </dl> */ #define SQLITE_DBCONFIG_MAINDBNAME 1000 /* const char* */ #define SQLITE_DBCONFIG_LOOKASIDE 1001 /* void* int int */ #define SQLITE_DBCONFIG_ENABLE_FKEY 1002 /* int int* */ #define SQLITE_DBCONFIG_ENABLE_TRIGGER 1003 /* int int* */ #define SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1004 /* int int* */ #define SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION 1005 /* int int* */ #define SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE 1006 /* int int* */ #define SQLITE_DBCONFIG_ENABLE_QPSG 1007 /* int int* */ #define SQLITE_DBCONFIG_TRIGGER_EQP 1008 /* int int* */ #define SQLITE_DBCONFIG_RESET_DATABASE 1009 /* int int* */ | > > > > > > > > > > > > > > > > > > > > > > > > | | 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 | ** <li> sqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 1, 0); ** <li> [sqlite3_exec](db, "[VACUUM]", 0, 0, 0); ** <li> sqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 0, 0); ** </ol> ** Because resetting a database is destructive and irreversible, the ** process requires the use of this obscure API and multiple steps to help ** ensure that it does not happen by accident. ** ** <dt>SQLITE_DBCONFIG_DEFENSIVE</dt> ** <dd>The SQLITE_DBCONFIG_DEFENSIVE option actives or deactivates the ** "defensive" flag for a database connection. When the defensive ** flag is enabled, some obscure features of SQLite are disabled in order ** to reduce the attack surface. Applications that run untrusted SQL ** can activate this flag to reduce the risk of zero-day exploits. ** <p> ** Features disabled by the defensive flag include: ** <ul> ** <li>The [PRAGMA writable_schema=ON] statement. ** <li>Writes to the [sqlite_dbpage] virtual table. ** </ul> ** New restrictions may be added in future releases. ** <p> ** To be clear: It should never be possible for hostile SQL to cause ** arbitrary memory reads, memory leaks, buffer overflows, assertion ** faults, arbitrary code execution, crashes, or other mischief, regardless ** of the value of the defensive flag. Any occurrance of these problems ** is considered a serious bug and will be fixed promptly. It is not ** necessary to enable the defensive flag in order to make SQLite secure ** against attack. The defensive flag merely provides an additional layer ** of defense against unknown vulnerabilities. ** </dd> ** </dl> */ #define SQLITE_DBCONFIG_MAINDBNAME 1000 /* const char* */ #define SQLITE_DBCONFIG_LOOKASIDE 1001 /* void* int int */ #define SQLITE_DBCONFIG_ENABLE_FKEY 1002 /* int int* */ #define SQLITE_DBCONFIG_ENABLE_TRIGGER 1003 /* int int* */ #define SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1004 /* int int* */ #define SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION 1005 /* int int* */ #define SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE 1006 /* int int* */ #define SQLITE_DBCONFIG_ENABLE_QPSG 1007 /* int int* */ #define SQLITE_DBCONFIG_TRIGGER_EQP 1008 /* int int* */ #define SQLITE_DBCONFIG_RESET_DATABASE 1009 /* int int* */ #define SQLITE_DBCONFIG_DEFENSIVE 1010 /* int int* */ #define SQLITE_DBCONFIG_MAX 1010 /* Largest DBCONFIG */ /* ** CAPI3REF: Enable Or Disable Extended Result Codes ** METHOD: sqlite3 ** ** ^The sqlite3_extended_result_codes() routine enables or disables the ** [extended result codes] feature of SQLite. ^The extended result |
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Changes to src/sqliteInt.h.
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1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 | #define SQLITE_CellSizeCk 0x00200000 /* Check btree cell sizes on load */ #define SQLITE_Fts3Tokenizer 0x00400000 /* Enable fts3_tokenizer(2) */ #define SQLITE_EnableQPSG 0x00800000 /* Query Planner Stability Guarantee*/ #define SQLITE_TriggerEQP 0x01000000 /* Show trigger EXPLAIN QUERY PLAN */ #define SQLITE_ResetDatabase 0x02000000 /* Reset the database */ #define SQLITE_LegacyAlter 0x04000000 /* Legacy ALTER TABLE behaviour */ #define SQLITE_NoSchemaError 0x08000000 /* Do not report schema parse errors*/ /* Flags used only if debugging */ #define HI(X) ((u64)(X)<<32) #ifdef SQLITE_DEBUG #define SQLITE_SqlTrace HI(0x0001) /* Debug print SQL as it executes */ #define SQLITE_VdbeListing HI(0x0002) /* Debug listings of VDBE progs */ #define SQLITE_VdbeTrace HI(0x0004) /* True to trace VDBE execution */ | > | 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 | #define SQLITE_CellSizeCk 0x00200000 /* Check btree cell sizes on load */ #define SQLITE_Fts3Tokenizer 0x00400000 /* Enable fts3_tokenizer(2) */ #define SQLITE_EnableQPSG 0x00800000 /* Query Planner Stability Guarantee*/ #define SQLITE_TriggerEQP 0x01000000 /* Show trigger EXPLAIN QUERY PLAN */ #define SQLITE_ResetDatabase 0x02000000 /* Reset the database */ #define SQLITE_LegacyAlter 0x04000000 /* Legacy ALTER TABLE behaviour */ #define SQLITE_NoSchemaError 0x08000000 /* Do not report schema parse errors*/ #define SQLITE_Defensive 0x10000000 /* Input SQL is likely hostile */ /* Flags used only if debugging */ #define HI(X) ((u64)(X)<<32) #ifdef SQLITE_DEBUG #define SQLITE_SqlTrace HI(0x0001) /* Debug print SQL as it executes */ #define SQLITE_VdbeListing HI(0x0002) /* Debug listings of VDBE progs */ #define SQLITE_VdbeTrace HI(0x0004) /* True to trace VDBE execution */ |
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4199 4200 4201 4202 4203 4204 4205 4206 4207 4208 4209 4210 4211 4212 | CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr); CollSeq *sqlite3ExprNNCollSeq(Parse *pParse, Expr *pExpr); int sqlite3ExprCollSeqMatch(Parse*,Expr*,Expr*); Expr *sqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*, int); Expr *sqlite3ExprAddCollateString(Parse*,Expr*,const char*); Expr *sqlite3ExprSkipCollate(Expr*); int sqlite3CheckCollSeq(Parse *, CollSeq *); int sqlite3CheckObjectName(Parse *, const char *); void sqlite3VdbeSetChanges(sqlite3 *, int); int sqlite3AddInt64(i64*,i64); int sqlite3SubInt64(i64*,i64); int sqlite3MulInt64(i64*,i64); int sqlite3AbsInt32(int); #ifdef SQLITE_ENABLE_8_3_NAMES | > | 4200 4201 4202 4203 4204 4205 4206 4207 4208 4209 4210 4211 4212 4213 4214 | CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr); CollSeq *sqlite3ExprNNCollSeq(Parse *pParse, Expr *pExpr); int sqlite3ExprCollSeqMatch(Parse*,Expr*,Expr*); Expr *sqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*, int); Expr *sqlite3ExprAddCollateString(Parse*,Expr*,const char*); Expr *sqlite3ExprSkipCollate(Expr*); int sqlite3CheckCollSeq(Parse *, CollSeq *); int sqlite3WritableSchema(sqlite3*); int sqlite3CheckObjectName(Parse *, const char *); void sqlite3VdbeSetChanges(sqlite3 *, int); int sqlite3AddInt64(i64*,i64); int sqlite3SubInt64(i64*,i64); int sqlite3MulInt64(i64*,i64); int sqlite3AbsInt32(int); #ifdef SQLITE_ENABLE_8_3_NAMES |
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Changes to src/test1.c.
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7552 7553 7554 7555 7556 7557 7558 7559 7560 7561 7562 7563 7564 7565 | { "TRIGGER", SQLITE_DBCONFIG_ENABLE_TRIGGER }, { "FTS3_TOKENIZER", SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER }, { "LOAD_EXTENSION", SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION }, { "NO_CKPT_ON_CLOSE",SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE }, { "QPSG", SQLITE_DBCONFIG_ENABLE_QPSG }, { "TRIGGER_EQP", SQLITE_DBCONFIG_TRIGGER_EQP }, { "RESET_DB", SQLITE_DBCONFIG_RESET_DATABASE }, }; int i; int v; const char *zSetting; sqlite3 *db; if( objc!=4 ){ | > | 7552 7553 7554 7555 7556 7557 7558 7559 7560 7561 7562 7563 7564 7565 7566 | { "TRIGGER", SQLITE_DBCONFIG_ENABLE_TRIGGER }, { "FTS3_TOKENIZER", SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER }, { "LOAD_EXTENSION", SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION }, { "NO_CKPT_ON_CLOSE",SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE }, { "QPSG", SQLITE_DBCONFIG_ENABLE_QPSG }, { "TRIGGER_EQP", SQLITE_DBCONFIG_TRIGGER_EQP }, { "RESET_DB", SQLITE_DBCONFIG_RESET_DATABASE }, { "DEFENSIVE", SQLITE_DBCONFIG_DEFENSIVE }, }; int i; int v; const char *zSetting; sqlite3 *db; if( objc!=4 ){ |
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Changes to test/index.test.
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621 622 623 624 625 626 627 628 629 630 631 632 633 634 | # little outside the focus of this test scripts, but this has got to be # tested somewhere. do_test index-18.1 { catchsql { CREATE TABLE sqlite_t1(a, b, c); } } {1 {object name reserved for internal use: sqlite_t1}} do_test index-18.2 { catchsql { CREATE INDEX sqlite_i1 ON t7(c); } } {1 {object name reserved for internal use: sqlite_i1}} ifcapable view { do_test index-18.3 { | > > > > > > > | 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 | # little outside the focus of this test scripts, but this has got to be # tested somewhere. do_test index-18.1 { catchsql { CREATE TABLE sqlite_t1(a, b, c); } } {1 {object name reserved for internal use: sqlite_t1}} do_test index-18.1.2 { sqlite3_db_config db DEFENSIVE 1 catchsql { CREATE TABLE sqlite_t1(a, b, c); } } {1 {object name reserved for internal use: sqlite_t1}} sqlite3_db_config db DEFENSIVE 0 do_test index-18.2 { catchsql { CREATE INDEX sqlite_i1 ON t7(c); } } {1 {object name reserved for internal use: sqlite_i1}} ifcapable view { do_test index-18.3 { |
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