From: Fujii Masao <fujii@postgresql.org>
Date: Thu, 4 Sep 2014 17:17:57 +0000 (+0900)
Subject: Fix segmentation fault that an empty prepared statement could cause.
X-Git-Tag: REL9_1_15~110
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=81bffe63c09aac9e64932250082df86bbdc9fd13;p=thirdparty%2Fpostgresql.git

Fix segmentation fault that an empty prepared statement could cause.

Back-patch to all supported branches.

Per bug #11335 from Haruka Takatsuka
---

diff --git a/src/backend/tcop/utility.c b/src/backend/tcop/utility.c
index c096b52bfd6..2d065b99f3c 100644
--- a/src/backend/tcop/utility.c
+++ b/src/backend/tcop/utility.c
@@ -2308,6 +2308,9 @@ GetCommandLogLevel(Node *parsetree)
 {
 	LogStmtLevel lev;
 
+	if (parsetree == NULL)
+		return LOGSTMT_ALL;
+
 	switch (nodeTag(parsetree))
 	{
 			/* raw plannable queries */