From 85eb066ecdba647fcf972425d67266271e35d5cb Mon Sep 17 00:00:00 2001
From: Tom Lane
Date: Thu, 12 Dec 2013 12:40:07 -0500
Subject: Fix ancient docs/comments thinko: XID comparison is mod 2^32, not
 2^31.

Pointed out by Gianni Ciolli.
---
 doc/src/sgml/maintenance.sgml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'doc/src')

diff --git a/doc/src/sgml/maintenance.sgml b/doc/src/sgml/maintenance.sgml
index 385ee20d0cf..59d521b23b6 100644
--- a/doc/src/sgml/maintenance.sgml
+++ b/doc/src/sgml/maintenance.sgml
@@ -356,7 +356,7 @@
     <productname>PostgreSQL</productname> distinguishes a special XID
     <literal>FrozenXID</>.  This XID is always considered older
     than every normal XID. Normal XIDs are
-    compared using modulo-2<superscript>31</> arithmetic. This means
+    compared using modulo-2<superscript>32</> arithmetic. This means
     that for every normal XID, there are two billion XIDs that are
     <quote>older</> and two billion that are <quote>newer</>; another
     way to say it is that the normal XID space is circular with no
-- 
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