From cf714c81086a85b7558a84ebd024f6a5eec2a5ee Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter_e@gmx.net>
Date: Mon, 16 Apr 2012 22:40:54 +0300
Subject: Add compatibility information for prepared transaction commands

---
 doc/src/sgml/ref/commit_prepared.sgml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'doc/src/sgml/ref/commit_prepared.sgml')

diff --git a/doc/src/sgml/ref/commit_prepared.sgml b/doc/src/sgml/ref/commit_prepared.sgml
index 2af677fcb06..ecd0c525f20 100644
--- a/doc/src/sgml/ref/commit_prepared.sgml
+++ b/doc/src/sgml/ref/commit_prepared.sgml
@@ -83,6 +83,18 @@ COMMIT PREPARED 'foobar';
 
  </refsect1>
 
+ <refsect1>
+  <title>Compatibility</title>
+
+  <para>
+   <command>COMMIT PREPARED</command> is a
+   <productname>PostgreSQL</productname> extension.  It is intended for use by
+   external transaction management systems, some of which are covered by
+   standards (such as X/Open XA), but the SQL side of those systems is not
+   standardized.
+  </para>
+ </refsect1>
+
  <refsect1>
   <title>See Also</title>
 
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