From 809fc91fddd7fc91ee04983589cb7860d3a2b012 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Fri, 24 Jul 1998 15:54:10 +0000
Subject: [PATCH] Fix HAVING patch missing cast.

---
 src/backend/optimizer/plan/subselect.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/backend/optimizer/plan/subselect.c b/src/backend/optimizer/plan/subselect.c
index b5e4b1d8c8..c980144a0c 100644
--- a/src/backend/optimizer/plan/subselect.c
+++ b/src/backend/optimizer/plan/subselect.c
@@ -411,7 +411,7 @@ SS_process_sublinks(Node *expr)
            * Otherwise aggregate functions will fail later on (at execution 
            * time!) Reason: The rewite System makes several copies of the
            * VAR nodes and in this case it should not do so :-( */
-	    if(expr->lefthand != NULL)
+	    if(((SubLink *) expr)->lefthand != NULL)
 		{
 			lfirst(((Expr *) lfirst(((SubLink *)expr)->oper))->args) = 
 			lfirst(((SubLink *)expr)->lefthand);