0001-Use-per-tuple-context-in-ExecGetAllUpdatedCols.patch

From 9a6eccebaea969eb5d2e15de99aaabb40b02499c Mon Sep 17 00:00:00 2001
From: Tomas Vondra <tomas.vondra@postgresql.org>
Date: Tue, 23 May 2023 17:45:47 +0200
Subject: [PATCH] Use per-tuple context in ExecGetAllUpdatedCols

---
 src/backend/executor/execUtils.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/backend/executor/execUtils.c b/src/backend/executor/execUtils.c
index 25aba9a243a..37f2fa173f6 100644
--- a/src/backend/executor/execUtils.c
+++ b/src/backend/executor/execUtils.c
@@ -1349,8 +1349,16 @@ ExecGetExtraUpdatedCols(ResultRelInfo *relinfo, EState *estate)
 Bitmapset *
 ExecGetAllUpdatedCols(ResultRelInfo *relinfo, EState *estate)
 {
-	return bms_union(ExecGetUpdatedCols(relinfo, estate),
-					 ExecGetExtraUpdatedCols(relinfo, estate));
+	Bitmapset	   *ret;
+	MemoryContext	oldcxt
+		= MemoryContextSwitchTo(GetPerTupleMemoryContext(estate));
+
+	ret = bms_union(ExecGetUpdatedCols(relinfo, estate),
+					ExecGetExtraUpdatedCols(relinfo, estate));
+
+	MemoryContextSwitchTo(oldcxt);
+
+	return ret;
 }
 
 /*
-- 
2.40.1