Edward W. Rouse <ero...@comsquared.com> wrote: > Is there any way to remove a duplicate row from a table? Not my db but I have > to work with it. On version 7.4 right now. >
How to select the right records? You can try to use the ctid-column, see my simple example: test=# select * from dups ; i --- 1 1 1 2 2 3 4 (7 Zeilen) Zeit: 0,145 ms test=*# delete from dups where (ctid, i) not in (select max(ctid), i from dups group by i); DELETE 3 Zeit: 0,378 ms test=*# select * from dups ; i --- 1 2 3 4 (4 Zeilen) Andreas -- Really, I'm not out to destroy Microsoft. That will just be a completely unintentional side effect. (Linus Torvalds) "If I was god, I would recompile penguin with --enable-fly." (unknown) Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889° -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
