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In the query optimizer, when converting BETWEEN and LIKE/GLOB expressions

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into simpler forms for processing, be sure to transfer the LEFT JOIN markings.
Fix for ticket [bc878246eafe0f52c].

FossilOrigin-Name: caab361ebee5f5c3fdafd9b1abe3d1ab7c5b4db9
This commit is contained in:
drh
2013-08-28 16:27:01 +00:00
parent 38e587779d
commit d41d39f24d
4 changed files with 39 additions and 10 deletions
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9
src/where.c
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@@ -1209,8 +1209,10 @@ static int isMatchOfColumn(
** a join, then transfer the appropriate markings over to derived.
*/
static void transferJoinMarkings(Expr *pDerived, Expr *pBase){
pDerived->flags |= pBase->flags & EP_FromJoin;
pDerived->iRightJoinTable = pBase->iRightJoinTable;
if( pDerived ){
pDerived->flags |= pBase->flags & EP_FromJoin;
pDerived->iRightJoinTable = pBase->iRightJoinTable;
}
}
#if !defined(SQLITE_OMIT_OR_OPTIMIZATION) && !defined(SQLITE_OMIT_SUBQUERY)
@@ -1667,6 +1669,7 @@ static void exprAnalyze(
pNewExpr = sqlite3PExpr(pParse, ops[i],
sqlite3ExprDup(db, pExpr->pLeft, 0),
sqlite3ExprDup(db, pList->a[i].pExpr, 0), 0);
transferJoinMarkings(pNewExpr, pExpr);
idxNew = whereClauseInsert(pWC, pNewExpr, TERM_VIRTUAL|TERM_DYNAMIC);
testcase( idxNew==0 );
exprAnalyze(pSrc, pWC, idxNew);
@@ -1734,6 +1737,7 @@ static void exprAnalyze(
pNewExpr1 = sqlite3PExpr(pParse, TK_GE,
sqlite3ExprAddCollateToken(pParse,pNewExpr1,&sCollSeqName),
pStr1, 0);
transferJoinMarkings(pNewExpr1, pExpr);
idxNew1 = whereClauseInsert(pWC, pNewExpr1, TERM_VIRTUAL|TERM_DYNAMIC);
testcase( idxNew1==0 );
exprAnalyze(pSrc, pWC, idxNew1);
@@ -1741,6 +1745,7 @@ static void exprAnalyze(
pNewExpr2 = sqlite3PExpr(pParse, TK_LT,
sqlite3ExprAddCollateToken(pParse,pNewExpr2,&sCollSeqName),
pStr2, 0);
transferJoinMarkings(pNewExpr2, pExpr);
idxNew2 = whereClauseInsert(pWC, pNewExpr2, TERM_VIRTUAL|TERM_DYNAMIC);
testcase( idxNew2==0 );
exprAnalyze(pSrc, pWC, idxNew2);