pg_upgrade docs: mention modification of postgresql.conf in new cluster

Mention it might be necessary to modify postgresql.conf in the new
cluster to match the old cluster.

Backpatch to 9.2.

Suggested by user.

diff --git a/doc/src/sgml/pgupgrade.sgml b/doc/src/sgml/pgupgrade.sgml
index 998cb2fc9a57c23ffcaa0f940b201444dac8a372..8bf3050fbe55a83f4970f22630a487772af618b1 100644 (file)
--- a/doc/src/sgml/pgupgrade.sgml
+++ b/doc/src/sgml/pgupgrade.sgml
@@ -389,7 +389,9 @@ pg_upgrade.exe
 
     <para>
      If you modified <filename>pg_hba.conf</> to use <literal>trust</>,
-     restore its original authentication settings.
+     restore its original authentication settings.  It might also be
+     necessary to adjust other configurations files in the new cluster to
+     match the old cluster, e.g. <filename>postgresql.conf</>.
     </para>
    </step>