From 38d103763d14baddf3cbfe4b00b501059fc9447f Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter_e@gmx.net>
Date: Tue, 21 Feb 2017 11:33:07 -0500
Subject: Make more use of castNode()

---
 src/backend/parser/parse_func.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'src/backend/parser/parse_func.c')

diff --git a/src/backend/parser/parse_func.c b/src/backend/parser/parse_func.c
index a52261f2e92..672f7f65f10 100644
--- a/src/backend/parser/parse_func.c
+++ b/src/backend/parser/parse_func.c
@@ -1515,8 +1515,7 @@ func_get_detail(List *funcname,
 											 &isnull);
 			Assert(!isnull);
 			str = TextDatumGetCString(proargdefaults);
-			defaults = (List *) stringToNode(str);
-			Assert(IsA(defaults, List));
+			defaults = castNode(List, stringToNode(str));
 			pfree(str);
 
 			/* Delete any unused defaults from the returned list */
-- 
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