In response to Kashmir : > > cant seem to find anything about this, > would it possible at all to create a percentile-aggregate in pgres? > any pointers? > tia > -k I'm not sure if i understand your problem, but how about: test=*# select * from percentile ; id | value ----+------- 1 | 10 2 | 20 3 | 30 4 | 50 (4 rows) test=*# select a.id, a.value, (a.value*100/foo.summe)::numeric(10,2) from percentile a, (select sum(value) as summe from percentile ) as foo group by a.id, a.value, foo.summe order by id; id | value | numeric ----+-------+--------- 1 | 10 | 9.00 2 | 20 | 18.00 3 | 30 | 27.00 4 | 50 | 45.00 (4 rows) HTH, Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header) GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general