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-rw-r--r--src/backend/optimizer/plan/planagg.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/src/backend/optimizer/plan/planagg.c b/src/backend/optimizer/plan/planagg.c
index 8a6b2ad034..f0f17d5f95 100644
--- a/src/backend/optimizer/plan/planagg.c
+++ b/src/backend/optimizer/plan/planagg.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/optimizer/plan/planagg.c,v 1.43 2008/08/25 22:42:33 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/optimizer/plan/planagg.c,v 1.44 2008/12/28 18:53:56 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -95,11 +95,11 @@ optimize_minmax_aggregates(PlannerInfo *root, List *tlist, Path *best_path)
/*
* Reject unoptimizable cases.
*
- * We don't handle GROUP BY, because our current implementations of
- * grouping require looking at all the rows anyway, and so there's not
- * much point in optimizing MIN/MAX.
+ * We don't handle GROUP BY or windowing, because our current
+ * implementations of grouping require looking at all the rows anyway,
+ * and so there's not much point in optimizing MIN/MAX.
*/
- if (parse->groupClause)
+ if (parse->groupClause || parse->hasWindowFuncs)
return NULL;
/*