database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-20 15:22:23 +03:00
Code Activity

Replaced targetlist entry in GroupClause by reference number

Browse Source 
in Resdom and GroupClause so changing of resno's doesn't confuse
the grouping any more.

Jan
This commit is contained in:
Jan Wieck
1999-05-12 15:02:39 +00:00
parent 1a87c14c9c
commit 79c2576f77
22 changed files with 242 additions and 199 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
src/backend/parser/parse_agg.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_agg.c,v 1.18 1999/04/29 01:13:13 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_agg.c,v 1.19 1999/05/12 15:01:48 wieck Exp $
*
*-------------------------------------------------------------------------
*/
@ -32,8 +32,9 @@
#include "utils/lsyscache.h"
static bool contain_agg_clause(Node *clause);
static bool exprIsAggOrGroupCol(Node *expr, List *groupClause);
static bool tleIsAggOrGroupCol(TargetEntry *tle, List *groupClause);
static bool exprIsAggOrGroupCol(Node *expr, List *groupClause, List *tlist);
static bool tleIsAggOrGroupCol(TargetEntry *tle, List *groupClause,
List *tlist);
/*
* contain_agg_clause
@ -100,7 +101,7 @@ contain_agg_clause(Node *clause)
* returns true if the expression does not contain non-group columns.
*/
static bool
exprIsAggOrGroupCol(Node *expr, List *groupClause)
exprIsAggOrGroupCol(Node *expr, List *groupClause, List *tlist)
{
List *gl;
@ -113,7 +114,7 @@ exprIsAggOrGroupCol(Node *expr, List *groupClause)
{
GroupClause *grpcl = lfirst(gl);
if (equal(expr, grpcl->entry->expr))
if (equal(expr, get_groupclause_expr(grpcl, tlist)))
return TRUE;
}
@ -122,7 +123,7 @@ exprIsAggOrGroupCol(Node *expr, List *groupClause)
List *temp;
foreach(temp, ((Expr *) expr)->args)
if (!exprIsAggOrGroupCol(lfirst(temp), groupClause))
if (!exprIsAggOrGroupCol(lfirst(temp), groupClause, tlist))
return FALSE;
return TRUE;
}
@ -135,7 +136,7 @@ exprIsAggOrGroupCol(Node *expr, List *groupClause)
* returns true if the TargetEntry is Agg or GroupCol.
*/
static bool
tleIsAggOrGroupCol(TargetEntry *tle, List *groupClause)
tleIsAggOrGroupCol(TargetEntry *tle, List *groupClause, List *tlist)
{
Node *expr = tle->expr;
List *gl;
@ -147,7 +148,7 @@ tleIsAggOrGroupCol(TargetEntry *tle, List *groupClause)
{
GroupClause *grpcl = lfirst(gl);
if (tle->resdom->resno == grpcl->entry->resdom->resno)
if (tle->resdom->resgroupref == grpcl->tleGroupref)
{
if (contain_agg_clause((Node *) expr))
elog(ERROR, "Aggregates not allowed in GROUP BY clause");
@ -163,7 +164,7 @@ tleIsAggOrGroupCol(TargetEntry *tle, List *groupClause)
List *temp;
foreach(temp, ((Expr *) expr)->args)
if (!exprIsAggOrGroupCol(lfirst(temp), groupClause))
if (!exprIsAggOrGroupCol(lfirst(temp), groupClause, tlist))
return FALSE;
return TRUE;
}
@ -200,7 +201,7 @@ parseCheckAggregates(ParseState *pstate, Query *qry)
{
TargetEntry *tle = lfirst(tl);
if (!tleIsAggOrGroupCol(tle, qry->groupClause))
if (!tleIsAggOrGroupCol(tle, qry->groupClause, qry->targetList))
elog(ERROR,
"Illegal use of aggregates or non-group column in target list");
}
@ -210,7 +211,7 @@ parseCheckAggregates(ParseState *pstate, Query *qry)
* restriction as those in the target list.
*/
if (!exprIsAggOrGroupCol(qry->havingQual, qry->groupClause))
if (!exprIsAggOrGroupCol(qry->havingQual, qry->groupClause, qry->targetList))
elog(ERROR,
"Illegal use of aggregates or non-group column in HAVING clause");
return;