Initialize cached OID to Invalid in new hash entries

alvherre · alvherre · commit e246cfc95f02 · 2013-08-27T14:53:17.000-04:00
Andres Freund; bug detected by valgrind
diff --git 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 */
