bug fix reported by johnjdevine - see http://sourceforge.net/forum/forum.php?thread_id=2644846&forum_id=676076

git-svn-id: https://svn.code.sf.net/p/postfixadmin/code/trunk@493 a1433add-5e2c-0410-b055-b7f2511e0802

upgrade.php

@@ -564,7 +564,7 @@ function upgrade_4_pgsql() {
     $result = db_query_parsed("
         BEGIN;
             ALTER TABLE $table_vacation RENAME COLUMN domain to domain_old;
-            ALTER TABLE $table_vacation ADD COLUMN domain varchar(255) REFERENCES $domain;
+            ALTER TABLE $table_vacation ADD COLUMN domain varchar(255) REFERENCES $table_domain;
             UPDATE $table_vacation SET domain = domain_old;
             ALTER TABLE $table_vacation DROP COLUMN domain_old;
         COMMIT;