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Overview
| Comment: | Enhance WhereLoopBuilder.iPlanLimit to handle a case involving the OR optimization discovered overnight by OSSFuzz. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
7b59930a1d7b664b54d5a2bc9fa38592 |
| User & Date: | drh 2018-09-22 15:05:32 |
Context
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2018-09-23
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| 02:01 | Fix a faulty assert() in the validation logic for the LEFT JOIN strength reduction optimization. Problem found by OSSFuzz. check-in: 2fd62fcc user: drh tags: trunk | |
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2018-09-22
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| 15:05 | Enhance WhereLoopBuilder.iPlanLimit to handle a case involving the OR optimization discovered overnight by OSSFuzz. check-in: 7b59930a user: drh tags: trunk | |
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2018-09-21
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| 23:41 | Fix harmless compiler warning when compiled with SQLITE_OMIT_AUTHORIZATION. check-in: 50f2fa19 user: mistachkin tags: trunk | |
Changes
Changes to src/where.c.
2123 2123 static int whereLoopInsert(WhereLoopBuilder *pBuilder, WhereLoop *pTemplate){ 2124 2124 WhereLoop **ppPrev, *p; 2125 2125 WhereInfo *pWInfo = pBuilder->pWInfo; 2126 2126 sqlite3 *db = pWInfo->pParse->db; 2127 2127 int rc; 2128 2128 2129 2129 /* Stop the search once we hit the query planner search limit */ 2130 - if( pBuilder->iPlanLimit==0 ) return SQLITE_DONE; 2130 + if( pBuilder->iPlanLimit==0 ){ 2131 + WHERETRACE(0xffffffff,("=== query planner search limit reached ===\n")); 2132 + if( pBuilder->pOrSet ) pBuilder->pOrSet->n = 0; 2133 + return SQLITE_DONE; 2134 + } 2131 2135 pBuilder->iPlanLimit--; 2132 2136 2133 2137 /* If pBuilder->pOrSet is defined, then only keep track of the costs 2134 2138 ** and prereqs. 2135 2139 */ 2136 2140 if( pBuilder->pOrSet!=0 ){ 2137 2141 if( pTemplate->nLTerm ){
Changes to test/fuzzdata5.db.
cannot compute difference between binary files