2 files changed, 22 insertions, 2 deletions
diff --git a/src/backend/access/hash/hash_xlog.c b/src/backend/access/hash/hash_xlog.c
index e8e06c62a95..40debf40288 100644
--- a/src/backend/access/hash/hash_xlog.c
+++ b/src/backend/access/hash/hash_xlog.c
@@ -655,7 +655,10 @@ hash_xlog_squeeze_page(XLogReaderState *record)
 		 */
 		(void) XLogReadBufferForRedoExtended(record, 0, RBM_NORMAL, true, &bucketbuf);
 
-		action = XLogReadBufferForRedo(record, 1, &writebuf);
+		if (xldata->ntups > 0 || xldata->is_prev_bucket_same_wrt)
+			action = XLogReadBufferForRedo(record, 1, &writebuf);
+		else
+			action = BLK_NOTFOUND;
 	}
 
 	/* replay the record for adding entries in overflow buffer */
diff --git a/src/backend/access/hash/hashovfl.c b/src/backend/access/hash/hashovfl.c
index 9d1ff20b922..2bd4432265c 100644
--- a/src/backend/access/hash/hashovfl.c
+++ b/src/backend/access/hash/hashovfl.c
@@ -668,14 +668,31 @@ _hash_freeovflpage(Relation rel, Buffer bucketbuf, Buffer ovflbuf,
 			XLogRegisterBuffer(0, bucketbuf, flags);
 		}
 
-		XLogRegisterBuffer(1, wbuf, REGBUF_STANDARD);
 		if (xlrec.ntups > 0)
 		{
+			XLogRegisterBuffer(1, wbuf, REGBUF_STANDARD);
 			XLogRegisterBufData(1, (char *) itup_offsets,
 								nitups * sizeof(OffsetNumber));
 			for (i = 0; i < nitups; i++)
 				XLogRegisterBufData(1, (char *) itups[i], tups_size[i]);
 		}
+		else if (xlrec.is_prim_bucket_same_wrt || xlrec.is_prev_bucket_same_wrt)
+		{
+			uint8		wbuf_flags;
+
+			/*
+			 * A write buffer needs to be registered even if no tuples are
+			 * added to it to ensure that we can acquire a cleanup lock on it
+			 * if it is the same as primary bucket buffer or update the
+			 * nextblkno if it is same as the previous bucket buffer.
+			 */
+			Assert(xlrec.ntups == 0);
+
+			wbuf_flags = REGBUF_STANDARD;
+			if (!xlrec.is_prev_bucket_same_wrt)
+				wbuf_flags |= REGBUF_NO_CHANGE;
+			XLogRegisterBuffer(1, wbuf, wbuf_flags);
+		}
 
 		XLogRegisterBuffer(2, ovflbuf, REGBUF_STANDARD);