X-Original-To: pgsql-sql-postgresql.org@localhost.postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 431C89FA5DC for ; Thu, 1 Jun 2006 12:46:23 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 26788-01 for ; Thu, 1 Jun 2006 12:46:15 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from alvh.no-ip.org (201-221-200-231.bk11-dsl.surnet.cl [201.221.200.231]) by postgresql.org (Postfix) with ESMTP id 184219FA040 for ; Thu, 1 Jun 2006 12:46:15 -0300 (ADT) Received: by alvh.no-ip.org (Postfix, from userid 1000) id BD749C3A214; Thu, 1 Jun 2006 11:46:13 -0400 (CLT) Date: Thu, 1 Jun 2006 11:46:13 -0400 From: Alvaro Herrera To: Miroslav ?ulc Cc: pgsql-sql@postgresql.org Subject: Re: SELECT DISTINCT too slow Message-ID: <20060601154613.GC19388@surnet.cl> Mail-Followup-To: Miroslav ?ulc , pgsql-sql@postgresql.org References: <447EEAF1.7040305@startnet.cz> <12554.1149175230@sss.pgh.pa.us> <447F0A44.3080500@startnet.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <447F0A44.3080500@startnet.cz> User-Agent: Mutt/1.5.11+cvs20060403 X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.136 tagged_above=0 required=5 tests=AWL, BAYES_00, DNS_FROM_RFC_ABUSE, DNS_FROM_RFC_POST, FORGED_RCVD_HELO, RCVD_IN_SORBS_DUL, UPPERCASE_25_50 X-Spam-Level: X-Archive-Number: 200606/11 X-Sequence-Number: 25247 Miroslav ?ulc wrote: > The GROUP BY is really fast :-) Doh! How does it do it? -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc.