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UNION work for UNION ALL and other union stuff.

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This commit is contained in:
Bruce Momjian
1997-12-27 06:41:41 +00:00
parent 2730c4a45c
commit 4ce24c8aa9
8 changed files with 178 additions and 84 deletions
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16
src/backend/optimizer/plan/planner.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planner.c,v 1.16 1997/12/24 06:06:01 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/plan/planner.c,v 1.17 1997/12/27 06:41:07 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -72,8 +72,6 @@ planner(Query *parse)
{
List *tlist = parse->targetList;
List *rangetable = parse->rtable;
char *uniqueflag = parse->uniqueFlag;
List *sortclause = parse->sortClause;
Plan *result_plan = (Plan *) NULL;
@@ -83,7 +81,7 @@ planner(Query *parse)
if (parse->unionClause)
{
result_plan = (Plan *) plan_union_queries(0, /* none */
result_plan = (Plan *) plan_union_queries( 0, /* none */
parse,
UNION_FLAG);
/* XXX do we need to do this? bjm 12/19/97 */
@@ -173,16 +171,16 @@ planner(Query *parse)
* the optimization step later.
*/
if (uniqueflag)
if (parse->uniqueFlag)
{
Plan *sortplan = make_sortplan(tlist, sortclause, result_plan);
Plan *sortplan = make_sortplan(tlist, parse->sortClause, result_plan);
return ((Plan *) make_unique(tlist, sortplan, uniqueflag));
return ((Plan *) make_unique(tlist, sortplan, parse->uniqueFlag));
}
else
{
if (sortclause)
return (make_sortplan(tlist, sortclause, result_plan));
if (parse->sortClause)
return (make_sortplan(tlist, parse->sortClause, result_plan));
else
return ((Plan *) result_plan);
}