X-Original-To: pgsql-sql-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [64.117.224.193]) by svr1.postgresql.org (Postfix) with ESMTP id 8339A30F443 for ; Mon, 23 Jun 2003 05:39:46 +0000 (GMT) Received: from svr1.postgresql.org ([64.117.224.193]) by localhost (svr1.postgresql.org [64.117.224.193]) (amavisd-new, port 10024) with ESMTP id 81404-10 for ; Mon, 23 Jun 2003 02:39:36 -0300 (ADT) Received: from water.oasis.net.au (water.oasis.net.au [210.8.139.2]) by svr1.postgresql.org (Postfix) with ESMTP id 10FF630F5E6 for ; Mon, 23 Jun 2003 02:39:34 -0300 (ADT) Received: from oasis.net.au (guardian [210.8.139.5]) by water.oasis.net.au (8.9.3/8.9.3/Debian 8.9.3-21) with ESMTP id PAA09163 for ; Mon, 23 Jun 2003 15:55:42 +1000 X-Authentication-Warning: water.oasis.net.au: Host guardian [210.8.139.5] claimed to be oasis.net.au Message-ID: <3EF6928C.60705@oasis.net.au> Date: Mon, 23 Jun 2003 15:39:24 +1000 From: Rudi Starcevic User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.3) Gecko/20030312 X-Accept-Language: en-us, en MIME-Version: 1.0 Cc: pgsql-sql@postgresql.org Subject: Re: Delete duplicates References: <20030622091522.M37248@oasis.net.au> <2976.200.59.66.253.1056316636.squirrel@webmail.akyasociados.com.ar> <00ac01c33946$8d1678e0$0a00000a@neo> In-Reply-To: <00ac01c33946$8d1678e0$0a00000a@neo> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Archive-Number: 200306/252 X-Sequence-Number: 14010 Hi, Would this be OK or a little crude (untested) : INSERT INTO new_table ( id, something ) SELECT DISTINCT ON (id) id, something FROM old_table ORDER BY id Or something similar but create a new table ? Cheers Rudi. Denis Arh wrote: >How to delete "real" duplicates? > >id | somthing >----------------------- >1 | aaa >1 | aaa >2 | bbb >2 | bbb > >(an accident with backup recovery...) > > > >Regards, >Denis Arh > >