am Wed, dem 08.10.2008, um 13:20:47 +0200 mailte A B folgendes: > Assuming you have a table where some rows have the same values in all > columnes, how do you find these rows? You can use the ctid-column: test=*# select * from dup; a | b ---+--- 1 | 1 1 | 2 2 | 1 1 | 1 3 | 3 3 | 3 (6 rows) test=*# select * from dup where (ctid,a,b) not in (select distinct on (a,b) ctid,* from dup); a | b ---+--- 1 | 1 3 | 3 (2 rows) Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header) GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net
