v3-0002-use-shared-buffers-when-failsafe-active.patch

From 6f40d87f4f462d48a67721260be7e30a7438520e Mon Sep 17 00:00:00 2001
From: Melanie Plageman <melanieplageman@gmail.com>
Date: Wed, 22 Feb 2023 12:26:01 -0500
Subject: [PATCH v3 2/3] use shared buffers when failsafe active

---
 src/backend/access/heap/vacuumlazy.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/backend/access/heap/vacuumlazy.c b/src/backend/access/heap/vacuumlazy.c
index 8f14cf85f3..b319a244d5 100644
--- a/src/backend/access/heap/vacuumlazy.c
+++ b/src/backend/access/heap/vacuumlazy.c
@@ -2622,6 +2622,11 @@ lazy_check_wraparound_failsafe(LVRelState *vacrel)
 	if (unlikely(vacuum_xid_failsafe_check(&vacrel->cutoffs)))
 	{
 		vacrel->failsafe_active = true;
+		/*
+		 * Assume the caller who allocated the memory for the
+		 * BufferAccessStrategy object will free it.
+		 */
+		vacrel->bstrategy = NULL;
 
 		/* Disable index vacuuming, index cleanup, and heap rel truncation */
 		vacrel->do_index_vacuuming = false;
-- 
2.37.2