Milos Findura <findura@xxxxxxxxx> writes: > where can be problem? Presumably, one statement or the other is inside a transaction that already had a lower-grade lock on the target table. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general