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RewritePreprocessQuery tried to match resjunk targets against

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result relation ... wrong ...
This commit is contained in:
Tom Lane 1999-07-11 17:54:30 +00:00
parent f8d856af2c
commit eeaeb1bda8
1 changed files with 9 additions and 6 deletions
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15
src/backend/rewrite/rewriteHandler.c
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@ -6,7 +6,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteHandler.c,v 1.47 1999/06/21 01:26:56 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteHandler.c,v 1.48 1999/07/11 17:54:30 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -2610,6 +2610,8 @@ RewritePreprocessQuery(Query *parsetree)
* target relation. FixNew() depends on it when replacing
* *new* references in a rule action by the expressions
* from the rewritten query.
* resjunk targets are somewhat arbitrarily given a resno of 0;
* this is to prevent FixNew() from matching them to var nodes.
* ----------
*/
if (parsetree->resultRelation > 0)
@ -2617,8 +2619,6 @@ RewritePreprocessQuery(Query *parsetree)
RangeTblEntry *rte;
Relation rd;
List *tl;
TargetEntry *tle;
int resdomno;
rte = (RangeTblEntry *) nth(parsetree->resultRelation - 1,
parsetree->rtable);
@ -2626,9 +2626,12 @@ RewritePreprocessQuery(Query *parsetree)
foreach(tl, parsetree->targetList)
{
tle = (TargetEntry *) lfirst(tl);
resdomno = attnameAttNum(rd, tle->resdom->resname);
tle->resdom->resno = resdomno;
TargetEntry *tle = (TargetEntry *) lfirst(tl);
if (! tle->resdom->resjunk)
tle->resdom->resno = attnameAttNum(rd, tle->resdom->resname);
else
tle->resdom->resno = 0;
}
heap_close(rd);