From 398d2794ebb63bb80ff3c896a1cd84878ef4c821 Mon Sep 17 00:00:00 2001
From: Konstantin Knizhnik <knizhnik@garret.ru>
Date: Thu, 13 Mar 2025 18:30:32 +0200
Subject: [PATCH] Handle DEBUG_COMPARE_LOCAL mode in neon_zeroextend (#11220)

## Problem

DEBUG_COMPARE_LOCAL is not supported in neon_zeroextend added in PG16

## Summary of changes

Add support of DEBUG_COMPARE_LOCAL in neon_zeroextend

Co-authored-by: Konstantin Knizhnik <knizhnik@neon.tech>
---
 pgxn/neon/pagestore_smgr.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pgxn/neon/pagestore_smgr.c b/pgxn/neon/pagestore_smgr.c
index 1135212e22..6fe95df3dd 100644
--- a/pgxn/neon/pagestore_smgr.c
+++ b/pgxn/neon/pagestore_smgr.c
@@ -2898,6 +2898,11 @@ neon_zeroextend(SMgrRelation reln, ForkNumber forkNum, BlockNumber blocknum,
 						relpath(reln->smgr_rlocator, forkNum),
 						InvalidBlockNumber)));
 
+#ifdef DEBUG_COMPARE_LOCAL
+	if (IS_LOCAL_REL(reln))
+		mdzeroextend(reln, forkNum, blocknum, nblocks, skipFsync);
+#endif
+
 	/* Don't log any pages if we're not allowed to do so. */
 	if (!XLogInsertAllowed())
 		return;