Received: from maia.hub.org (maia-5.hub.org [200.46.204.29]) by mail.postgresql.org (Postfix) with ESMTP id 985851337BA3 for ; Sat, 7 May 2011 07:40:00 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.29]) (amavisd-maia, port 10024) with ESMTP id 81075-01 for ; Sat, 7 May 2011 10:39:54 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from sam.nabble.com (sam.nabble.com [216.139.236.26]) by mail.postgresql.org (Postfix) with ESMTP id 927681337B97 for ; Sat, 7 May 2011 07:39:52 -0300 (ADT) Received: from [192.168.236.26] (helo=sam.nabble.com) by sam.nabble.com with esmtp (Exim 4.69) (envelope-from ) id 1QIevQ-0005a4-Oj for pgsql-performance@postgresql.org; Sat, 07 May 2011 03:39:52 -0700 Date: Sat, 7 May 2011 03:39:52 -0700 (PDT) From: Mark To: pgsql-performance@postgresql.org Message-ID: <1304764792758-4378163.post@n5.nabble.com> In-Reply-To: References: <1304245432864-4362578.post@n5.nabble.com> <1304369646236-4365717.post@n5.nabble.com> Subject: Re: Query improvement MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-0.767 tagged_above=-10 required=5 tests=BAYES_00=-1.9, FREEMAIL_FROM=0.001, T_TO_NO_BRKTS_FREEMAIL=0.01, URI_HEX=1.122 X-Spam-Level: X-Archive-Number: 201105/72 X-Sequence-Number: 43581 Thanks for replies. Finally I have used UNION and JOINS, which helped. Mainly the UNION helped a lot. Now the query takes 1sec max. Thanks a lot. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Query-improvement-tp4362578p4378163.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com.