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Fix the memory leak introduced by check-in (725). (CVS 726)

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FossilOrigin-Name: b957dafc26383af514795df18bc7b8f367c9bd21
This commit is contained in:
drh
2002-08-25 18:29:11 +00:00
parent 4b59ab5e64
commit d94a669894
7 changed files with 76 additions and 40 deletions
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7
src/select.c
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@@ -12,7 +12,7 @@
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.108 2002/08/24 18:24:54 drh Exp $
** $Id: select.c,v 1.109 2002/08/25 18:29:12 drh Exp $
*/
#include "sqliteInt.h"
@@ -808,6 +808,7 @@ static int fillInColumnList(Parse *pParse, Select *p){
if( sqliteViewGetColumnNames(pParse, pTab) ){
return 1;
}
sqliteSelectDelete(pTabList->a[i].pSelect);
pTabList->a[i].pSelect = sqliteSelectDup(pTab->pSelect);
}
}
@@ -1309,8 +1310,11 @@ static void substExpr(Expr *pExpr, int iTable, ExprList *pEList, int iSub){
pNew = pEList->a[pExpr->iColumn].pExpr;
assert( pNew!=0 );
pExpr->op = pNew->op;
assert( pExpr->pLeft==0 );
pExpr->pLeft = sqliteExprDup(pNew->pLeft);
assert( pExpr->pRight==0 );
pExpr->pRight = sqliteExprDup(pNew->pRight);
assert( pExpr->pList==0 );
pExpr->pList = sqliteExprListDup(pNew->pList);
pExpr->iTable = pNew->iTable;
pExpr->iColumn = pNew->iColumn;
@@ -1495,6 +1499,7 @@ int flattenSubquery(Select *p, int iFrom, int isAgg, int subqueryIsAgg){
}
pSrc->a[iFrom].pTab = pSubSrc->a[0].pTab;
pSubSrc->a[0].pTab = 0;
assert( pSrc->a[iFrom].pSelect==pSub );
pSrc->a[iFrom].pSelect = pSubSrc->a[0].pSelect;
pSubSrc->a[0].pSelect = 0;
sqliteSelectDelete(pSub);