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Overview
| Comment: | Fix crash in sqlite3_vtab_collation() when called for an IS NOT NULL constraint. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
ad38d2c4f073705c02c7b38675e8ae86 |
| User & Date: | dan 2017-12-19 18:56:28 |
Context
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2017-12-20
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| 23:46 | Lowercase local variable names in the SHA3 extension in order to avoid collisions with macros in termios.h. check-in: 3ec73711 user: drh tags: trunk | |
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2017-12-19
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| 18:56 | Fix crash in sqlite3_vtab_collation() when called for an IS NOT NULL constraint. check-in: ad38d2c4 user: dan tags: trunk | |
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2017-12-16
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| 19:36 | Add the sqlite3_vtab_collation() function, which allows an xBestIndex callback to determine the collation sequence that SQLite will use for a comparison. And the SQLITE_DBCONFIG_FULL_EQP configuration option, which enhances the output of "EXPLAIN QUERY PLAN" so that it includes statements run by triggers. And the code for the sqlite3_expert extension and command line application. check-in: 4c782c95 user: dan tags: trunk | |
Changes
Changes to ext/expert/expert1.test.
287 287 } { 288 288 SELECT * FROM t2, t1 WHERE b=? AND d=? AND t2.rowid=t1.rowid 289 289 } { 290 290 CREATE INDEX t2_idx_00000064 ON t2(d); 291 291 0|0|0|SEARCH TABLE t2 USING INDEX t2_idx_00000064 (d=?) 292 292 0|1|1|SEARCH TABLE t1 USING INTEGER PRIMARY KEY (rowid=?) 293 293 } 294 + 295 +do_setup_rec_test $tn.16 { 296 + CREATE TABLE t1(a, b); 297 +} { 298 + SELECT * FROM t1 WHERE b IS NOT NULL; 299 +} { 300 + (no new indexes) 301 + 0|0|0|SCAN TABLE t1 302 +} 294 303 295 304 } 296 305 297 306 proc do_candidates_test {tn sql res} { 298 307 set res [squish [string trim $res]] 299 308 300 309 set expert [sqlite3_expert_new db]
Changes to src/where.c.
3156 3156 ** array. Or, if iCons is out of range or there is no active xBestIndex 3157 3157 ** call, return NULL. 3158 3158 */ 3159 3159 const char *sqlite3_vtab_collation(sqlite3 *db, int iCons){ 3160 3160 struct BestIndexCtx *p = (struct BestIndexCtx*)db->pBestIndexCtx; 3161 3161 const char *zRet = 0; 3162 3162 if( p && iCons>=0 && iCons<p->pIdxInfo->nConstraint ){ 3163 + CollSeq *pC = 0; 3163 3164 int iTerm = p->pIdxInfo->aConstraint[iCons].iTermOffset; 3164 3165 Expr *pX = p->pWC->a[iTerm].pExpr; 3165 - CollSeq *pC = sqlite3BinaryCompareCollSeq(p->pParse,pX->pLeft,pX->pRight); 3166 + if( pX->pLeft ){ 3167 + pC = sqlite3BinaryCompareCollSeq(p->pParse, pX->pLeft, pX->pRight); 3168 + } 3166 3169 zRet = (pC ? pC->zName : "BINARY"); 3167 3170 } 3168 3171 return zRet; 3169 3172 } 3170 3173 3171 3174 /* 3172 3175 ** Add all WhereLoop objects for a table of the join identified by