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Changes to reduce the heap space consumed by triggers, views and tables in the in-memory representation of the schema. Also to reduce the space used by prepared statements slightly. (CVS 6305)

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FossilOrigin-Name: d9f6ffbc5ea090ba0daac571fc9a6c68b9c864e4
This commit is contained in:
danielk1977
2009-02-19 14:39:25 +00:00
parent 076d4661a6
commit 6ab3a2ec8a
27 changed files with 664 additions and 366 deletions
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9
src/walker.c
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@@ -12,7 +12,7 @@
** This file contains routines used for walking the parser tree for
** an SQL statement.
**
** $Id: walker.c,v 1.1 2008/08/20 16:35:10 drh Exp $
** $Id: walker.c,v 1.2 2009/02/19 14:39:25 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <stdlib.h>
@@ -45,9 +45,10 @@ int sqlite3WalkExpr(Walker *pWalker, Expr *pExpr){
if( rc==WRC_Continue ){
if( sqlite3WalkExpr(pWalker, pExpr->pLeft) ) return WRC_Abort;
if( sqlite3WalkExpr(pWalker, pExpr->pRight) ) return WRC_Abort;
if( sqlite3WalkExprList(pWalker, pExpr->pList) ) return WRC_Abort;
if( sqlite3WalkSelect(pWalker, pExpr->pSelect) ){
return WRC_Abort;
if( ExprHasProperty(pExpr, EP_xIsSelect) ){
if( sqlite3WalkSelect(pWalker, pExpr->x.pSelect) ) return WRC_Abort;
}else{
if( sqlite3WalkExprList(pWalker, pExpr->x.pList) ) return WRC_Abort;
}
}
return rc & WRC_Abort;