From d23179d0501d1ace59d4cbd9220fbc9fa83585bd Mon Sep 17 00:00:00 2001
From: Dianjin Wang <wangdianjin@gmail.com>
Date: Mon, 26 Oct 2026 13:54:34 +0800
Subject: [PATCH] Fix redeclared $macro in gen_node_support.pl

The read-fast block of gen_node_support.pl declared "my $macro" a second
time in the same scope as the read block just above it, computing the
same value, so every build that generates node support prints

  "my" variable $macro masks earlier declaration in same scope at
  gen_node_support.pl line 1035.

Reuse the variable from the read block instead. The generated files are
unchanged.

Assisted-by: Claude Code
---
 src/backend/nodes/gen_node_support.pl | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/backend/nodes/gen_node_support.pl b/src/backend/nodes/gen_node_support.pl
index df7b8e43e97..3fa4ae6b0d4 100755
--- a/src/backend/nodes/gen_node_support.pl
+++ b/src/backend/nodes/gen_node_support.pl
@@ -1032,10 +1032,6 @@ sub elem
 ";
 		
 		# for read fast
-		my $macro =
-			(@{ $node_type_info{$n}->{fields} } > 0)
-				? 'READ_LOCALS'
-				: 'READ_LOCALS_NO_FIELDS';
 		print $rfaf "
 static $n *
 _read${n}(void)