v1-0001-Flush-WAL-in-bgwriter.patch

From 9317e86e4b2b3ba202ce090f383ac48526b97955 Mon Sep 17 00:00:00 2001
From: Nazir Bilal Yavuz <byavuz81@gmail.com>
Date: Wed, 21 Jun 2023 13:39:13 +0300
Subject: [PATCH v1] Flush WAL in bgwriter

bgwriter generates WAL but it doesn't flush them, so they can't be seen
in pg_stat_wal. Call pgstat_report_wal() to flush WAL in bgwriter.
---
 src/backend/postmaster/bgwriter.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/backend/postmaster/bgwriter.c b/src/backend/postmaster/bgwriter.c
index caad642ec9..f2e4f23d9f 100644
--- a/src/backend/postmaster/bgwriter.c
+++ b/src/backend/postmaster/bgwriter.c
@@ -241,6 +241,7 @@ BackgroundWriterMain(void)
 
 		/* Report pending statistics to the cumulative stats system */
 		pgstat_report_bgwriter();
+		pgstat_report_wal(true);
 
 		if (FirstCallSinceLastCheckpoint())
 		{
-- 
2.40.1