From: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: Tue, 27 Aug 2013 18:53:17 +0000 (-0400)
Subject: Initialize cached OID to Invalid in new hash entries
X-Git-Tag: REL9_4_BETA1~1194
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e246cfc95f020b5fcb20a1fb946efe77113edf00;p=postgresql

Initialize cached OID to Invalid in new hash entries

Andres Freund; bug detected by valgrind
---

diff --git a/src/backend/utils/cache/relfilenodemap.c b/src/backend/utils/cache/relfilenodemap.c
index 2a8f83775d..f3f9a09899 100644
--- a/src/backend/utils/cache/relfilenodemap.c
+++ b/src/backend/utils/cache/relfilenodemap.c
@@ -180,6 +180,9 @@ RelidByRelfilenode(Oid reltablespace, Oid relfilenode)
 	if (found)
 		return entry->relid;
 
+	/* initialize empty/negative cache entry before doing the actual lookup */
+	entry->relid = InvalidOid;
+
 	/* ok, no previous cache entry, do it the hard way */
 
 	/* check shared tables */