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Overview
| Comment: | Fix an unreachable conditional in the WHERE clause analysis logic. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
24924a58197e558a9e8800cc5c91dc8f |
| User & Date: | drh 2015-09-05 19:21:00 |
Context
|
2015-09-05
| ||
| 22:36 | Omit all use of Expr nodes for TK_AS, as those nodes no longer served a useful purpose and in fact interferred with the query planner. (check-in: 7ab0b258 user: drh tags: trunk) | |
| 19:52 | Experiment with a different fts5 leaf page format that allows faster seeks. (check-in: a1f4c3b5 user: dan tags: fts5-incompatible) | |
| 19:21 | Fix an unreachable conditional in the WHERE clause analysis logic. (check-in: 24924a58 user: drh tags: trunk) | |
| 19:07 | Get STAT4 range scan estimates work again when the bounds are determined by date/time functions. (check-in: d2761357 user: drh tags: trunk) | |
Changes
Changes to src/where.c.
187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 |
&& pTerm->u.leftColumn==iColumn
&& (iColumn!=(-2)
|| sqlite3ExprCompare(pTerm->pExpr->pLeft,pScan->pIdxExpr,iCur)==0)
&& (pScan->iEquiv<=1 || !ExprHasProperty(pTerm->pExpr, EP_FromJoin))
){
if( (pTerm->eOperator & WO_EQUIV)!=0
&& pScan->nEquiv<ArraySize(pScan->aiCur)
&& (pX = sqlite3ExprSkipCollate(pTerm->pExpr->pRight))->op==TK_COLUMN
){
int j;
for(j=0; j<pScan->nEquiv; j++){
if( pScan->aiCur[j]==pX->iTable
&& pScan->aiColumn[j]==pX->iColumn ){
break;
}
}
if( j==pScan->nEquiv ){
|
< > > |
187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 |
&& pTerm->u.leftColumn==iColumn
&& (iColumn!=(-2)
|| sqlite3ExprCompare(pTerm->pExpr->pLeft,pScan->pIdxExpr,iCur)==0)
&& (pScan->iEquiv<=1 || !ExprHasProperty(pTerm->pExpr, EP_FromJoin))
){
if( (pTerm->eOperator & WO_EQUIV)!=0
&& pScan->nEquiv<ArraySize(pScan->aiCur)
){
int j;
pX = sqlite3ExprSkipCollate(pTerm->pExpr->pRight);
assert( pX->op==TK_COLUMN );
for(j=0; j<pScan->nEquiv; j++){
if( pScan->aiCur[j]==pX->iTable
&& pScan->aiColumn[j]==pX->iColumn ){
break;
}
}
if( j==pScan->nEquiv ){
|