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Infrastructure changes to handle name resolution differently. This is needed

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to fix various long-standing problems with column names in joins.  It will
also make the implementation of correlated subqueries easier. (CVS 2228)

FossilOrigin-Name: 4a7534396a72ccb300303df28798bb2c50293782
This commit is contained in:
drh
2005-01-17 22:08:19 +00:00
parent 3719d7f9c4
commit 626a879a25
11 changed files with 503 additions and 442 deletions
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12
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 1.222 2005/01/17 08:57:09 danielk1977 Exp $
** $Id: select.c,v 1.223 2005/01/17 22:08:19 drh Exp $
*/
#include "sqliteInt.h"
@@ -2186,7 +2186,7 @@ static int processOrderGroupBy(
sqlite3ExprDelete(pE);
pE = pOrderBy->a[i].pExpr = sqlite3ExprDup(pEList->a[iCol-1].pExpr);
}
if( sqlite3ExprResolveAndCheck(pParse, pTabList, pEList, pE, isAgg, 0) ){
if( sqlite3ExprResolveNames(pParse, pTabList, pEList, pE, isAgg, 0, 1) ){
return 1;
}
if( sqlite3ExprIsConstant(pE) ){
@@ -2355,12 +2355,12 @@ int sqlite3Select(
** Resolve the column names and do a semantics check on all the expressions.
*/
for(i=0; i<pEList->nExpr; i++){
if( sqlite3ExprResolveAndCheck(pParse, pTabList, 0, pEList->a[i].pExpr,
1, &isAgg) ){
if( sqlite3ExprResolveNames(pParse, pTabList, 0, pEList->a[i].pExpr,
1, &isAgg, 1) ){
goto select_end;
}
}
if( sqlite3ExprResolveAndCheck(pParse, pTabList, pEList, pWhere, 0, 0) ){
if( sqlite3ExprResolveNames(pParse, pTabList, pEList, pWhere, 0, 0, 1) ){
goto select_end;
}
if( pHaving ){
@@ -2368,7 +2368,7 @@ int sqlite3Select(
sqlite3ErrorMsg(pParse, "a GROUP BY clause is required before HAVING");
goto select_end;
}
if( sqlite3ExprResolveAndCheck(pParse, pTabList, pEList,pHaving,1,&isAgg) ){
if( sqlite3ExprResolveNames(pParse, pTabList, pEList,pHaving,1,&isAgg,1) ){
goto select_end;
}
}