On 1/11/08, alphax <alphax@xxxxxxxxxxx> wrote: > I want to determines a given record which visible to current transaction > whether or not be updated after some time point, that time point is > indicated by aother transaction id started and committed in past time. I'm not sure I understand, but maybe this thread will help? http://archives.postgresql.org/pgsql-general/2007-10/msg00503.php ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org/