diff -r 000000000000 -r bb0aa2102206 pgsql-virtual_alias_maps.cf
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pgsql-virtual_alias_maps.cf	Sun Jan 06 18:22:10 2008 +0000
@@ -0,0 +1,12 @@
+# The hosts that Postfix will try to connect to
+hosts = host1.some.domain host2.some.domain
+
+# The user name and password to log into the pgsql server.
+user = postfix
+password = some_password
+
+# The database name on the servers.
+dbname = mailsys
+
+# Postfix 2.2 and later The SQL query template. See pgsql_table(5).
+query = SELECT destination FROM postfix_alias WHERE address='%s'