--- Stuart <[EMAIL PROTECTED]> wrote: > > you will need to use pre insert trigger since you cannot use column > > references in default expression. > > > > you could use this same trigger to either: > > - create sequences as needed and apply the right one > > - with locking, lookup for last id of typ > > - with locking, keep another table of typ and nextval
here is supplementary information of gap-less sequences: http://www.varlena.com/GeneralBits/130.php Regards, Richard Broersma Jr. ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org