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Changes In Branch OR-clause-improvement Excluding Merge-Ins
This is equivalent to a diff from 2910ef6409 to ab94603974
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2016-01-29
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| 18:11 | Avoid unnecessary WHERE clause term tests when coding a join where one of the tables contains a OR constraint. (check-in: 512caa1ad3 user: drh tags: trunk) | |
| 16:57 | Avoid unnecessary WHERE clause term tests when coding a join where one of the tables contains a OR constraint. (Closed-Leaf check-in: ab94603974 user: drh tags: OR-clause-improvement) | |
| 08:38 | Avoid two more instances of pointer arithmetic on freed pointers. (check-in: 2910ef6409 user: dan tags: trunk) | |
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2016-01-28
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| 18:22 | Modify the order of terms in an "if" condition to avoid implicitly comparing a dangling pointer to NULL following an OOM error. (check-in: 5372f80083 user: dan tags: trunk) | |
Changes to src/wherecode.c.
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1397 1398 1399 1400 1401 1402 1403 | 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 | - + + + |
*/
if( pWC->nTerm>1 ){
int iTerm;
for(iTerm=0; iTerm<pWC->nTerm; iTerm++){
Expr *pExpr = pWC->a[iTerm].pExpr;
if( &pWC->a[iTerm] == pTerm ) continue;
if( ExprHasProperty(pExpr, EP_FromJoin) ) continue;
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