From 5506c574e976eb40174820668a00f02e9b4b62f4 Mon Sep 17 00:00:00 2001
From: Jelte Fennema-Nio <postgres@jeltef.nl>
Date: Mon, 13 Oct 2025 11:52:22 +0200
Subject: [PATCH v1] docs: Fix protocol version 3.2 message format of
 CancelRequest

Since protocol version 3.2 the CancelRequest does not have a fixed size
length anymore. The protocol docs still listed the length field to be a
constant number though. This fixes that.

Reported-by: Dmitry Igrishin <dmitigr@gmail.com>
Backpatch-through: 18
---
 doc/src/sgml/protocol.sgml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/src/sgml/protocol.sgml b/doc/src/sgml/protocol.sgml
index b5395604fb8..9d755232873 100644
--- a/doc/src/sgml/protocol.sgml
+++ b/doc/src/sgml/protocol.sgml
@@ -4327,7 +4327,7 @@ psql "dbname=postgres replication=database" -c "IDENTIFY_SYSTEM;"
     <listitem>
      <variablelist>
       <varlistentry>
-       <term>Int32(16)</term>
+       <term>Int32</term>
        <listitem>
         <para>
          Length of message contents in bytes, including self.

base-commit: 7a662a46ebf74e9fa15cb62b592b4bf00c96fc94
-- 
2.51.0