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Remove some recursion in optimizer and clean up some code there.

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This commit is contained in:
Bruce Momjian
1997-12-21 05:18:48 +00:00
parent 0808e658a7
commit 78a055a659
4 changed files with 129 additions and 122 deletions
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12
src/backend/optimizer/prep/prepunion.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.11 1997/12/20 07:59:33 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.12 1997/12/21 05:18:28 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -236,9 +236,13 @@ plan_union_query(List *relids,
new_root->uniqueFlag = NULL;
new_root->sortClause = NULL;
new_root->groupClause = NULL;
new_root->qry_numAgg = 0;
new_root->qry_aggs = NULL;
del_agg_tlist_references(new_root->targetList);
if (new_root->qry_numAgg != 0)
{
new_root->qry_numAgg = 0;
pfree(new_root->qry_aggs);
new_root->qry_aggs = NULL;
del_agg_tlist_references(new_root->targetList);
}
fix_parsetree_attnums(rt_index,
rt_entry->relid,
relid,