Fix another problem in 8.2 changes that allowed "one-time" qual conditions to

be checked at plan levels below the top; namely, we have to allow for Result
nodes inserted just above a nestloop inner indexscan.  Should think about
using the general Param mechanism to pass down outer-relation variables, but
for the moment we need a back-patchable solution.  Per report from Phil Frost.

1 files changed, 9 insertions, 1 deletions

diff --git a/src/backend/optimizer/plan/setrefs.c b/src/backend/optimizer/plan/setrefs.c
index c356d265e84..bec0ddf7c4b 100644
--- a/src/backend/optimizer/plan/setrefs.c
+++ b/src/backend/optimizer/plan/setrefs.c
@@ -9,7 +9,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/optimizer/plan/setrefs.c,v 1.128 2007/01/22 01:35:20 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/optimizer/plan/setrefs.c,v 1.129 2007/02/16 03:49:04 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -936,6 +936,14 @@ set_inner_join_references(Plan *inner_plan, indexed_tlist *outer_itlist)
 									  outer_itlist);
 		}
 	}
+	else if (IsA(inner_plan, Result))
+	{
+		/* Recurse through a gating Result node (similar to Append case) */
+		Result	   *result = (Result *) inner_plan;
+
+		if (result->plan.lefttree)
+			set_inner_join_references(result->plan.lefttree, outer_itlist);
+	}
 	else if (IsA(inner_plan, TidScan))
 	{
 		TidScan    *innerscan = (TidScan *) inner_plan;