No need to call XLogEnsureRecordSpace when the relation is unlogged.

hlinnaka · hlinnaka · commit 622983ea6964 · 2014-11-21T15:13:15.000+02:00
Amit Kapila
diff --git a/src/backend/access/gin/ginfast.c b/src/backend/access/gin/ginfast.c
@@ -552,7 +552,8 @@ shiftList(Relation index, Buffer metabuffer, BlockNumber newHead,
 		 * prepare the XLogInsert machinery for that before entering the
 		 * critical section.
 		 */
-		XLogEnsureRecordSpace(data.ndeleted, 0);
+		if (RelationNeedsWAL(index))
+			XLogEnsureRecordSpace(data.ndeleted, 0);
 
 		START_CRIT_SECTION();
 
