From 3ced32d24e14af1877171c085a635b4ccdf8930c Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Wed, 7 Sep 2011 14:42:34 -0400
Subject: In pg_upgrade, disallow migration of 8.3 clusters using contrib/ltree
 because its internal format was changed in 8.4.

Backpatch to 9.0 and 9.1.

Report by depesz, diagnosis by Tom.
---
 doc/src/sgml/pgupgrade.sgml | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'doc/src')

diff --git a/doc/src/sgml/pgupgrade.sgml b/doc/src/sgml/pgupgrade.sgml
index 2d8bbce6b40..9b0718df6b0 100644
--- a/doc/src/sgml/pgupgrade.sgml
+++ b/doc/src/sgml/pgupgrade.sgml
@@ -487,6 +487,11 @@ psql --username postgres --file script.sql postgres
    You must drop any such columns and upgrade them manually.
   </para>
 
+  <para>
+   pg_upgrade will not work if the <filename>ltree</>
+   contrib module is installed in a database.
+  </para>
+
   <para>
    pg_upgrade will require a table rebuild if:
    <itemizedlist>
-- 
cgit v1.2.3