=== modified file 'account/wizard/account_report_common.py'
--- account/wizard/account_report_common.py	2011-01-14 00:11:01 +0000
+++ account/wizard/account_report_common.py	2011-10-07 16:02:04 +0000
@@ -70,7 +70,7 @@
                                WHERE f.id = %s
                                ORDER BY p.date_start ASC
                                LIMIT 1) AS period_start
-                UNION
+                UNION ALL
                 SELECT * FROM (SELECT p.id
                                FROM account_period p
                                LEFT JOIN account_fiscalyear f ON (p.fiscalyear_id = f.id)