v3-0001-Fix-memory-leak-in-pgoutput.patch

From 242bff0c2fecf6b777bfd72ac077810822d8015d Mon Sep 17 00:00:00 2001
From: "yangboyu.yby" <yangboyu.yby@alibaba-inc.com>
Date: Wed, 20 Nov 2024 11:14:09 +0800
Subject: [PATCH] Fix memory leak in pgoutput

---
 src/backend/replication/pgoutput/pgoutput.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/backend/replication/pgoutput/pgoutput.c b/src/backend/replication/pgoutput/pgoutput.c
index 00e7024563e..36b2c5fbbfe 100644
--- a/src/backend/replication/pgoutput/pgoutput.c
+++ b/src/backend/replication/pgoutput/pgoutput.c
@@ -2055,9 +2055,25 @@ get_rel_sync_entry(PGOutputData *data, Relation relation)
 		 * Tuple slots cleanups. (Will be rebuilt later if needed).
 		 */
 		if (entry->old_slot)
+		{
+			TupleDesc       *desc = &entry->old_slot->tts_tupleDescriptor;
+
+			Assert((*desc)->tdrefcount == -1);
+
+			FreeTupleDesc(*desc);
+			*desc = NULL;
 			ExecDropSingleTupleTableSlot(entry->old_slot);
+		}
 		if (entry->new_slot)
+		{
+			TupleDesc       *desc = &entry->new_slot->tts_tupleDescriptor;
+
+			Assert((*desc)->tdrefcount == -1);
+
+			FreeTupleDesc(*desc);
+			*desc = NULL;
 			ExecDropSingleTupleTableSlot(entry->new_slot);
+		}
 
 		entry->old_slot = NULL;
 		entry->new_slot = NULL;
-- 
2.32.0.3.g01195cf9f