Received: from makus.postgresql.org (makus.postgresql.org [98.129.198.125]) by mail.postgresql.org (Postfix) with ESMTP id 6177EF7658 for ; Wed, 11 Apr 2012 07:28:42 -0300 (ADT) Received: from mx4.wp.pl ([212.77.101.8]) by makus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1SHun2-0004fj-0K for pgsql-general@postgresql.org; Wed, 11 Apr 2012 10:28:41 +0000 Received: (wp-smtpd smtp.wp.pl 7582 invoked from network); 11 Apr 2012 12:28:24 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wp.pl; s=1024a; t=1334140104; bh=tSQvRwgFgmdlumpaDPL8M0dcW9aiIyvoe+qs3PNvPgQ=; h=From:To:Subject; b=nubDSshBmeGIr6s7bv3Kx9t7yGubzb1JziFraDDKc4P4YARYYD6xoxKQ3LVqsQQo5 5+Bl3Raqe/TgR22yTFI1IHfIIsAR14wXENhUhoFJHgGLROdNjjx1zx2mhqNzaCM5Xy DwlMJPxEbxqiNggZU7/qBEMguhBZLyx1VCsoYQuA= Received: from out.poczta.wp.pl (HELO localhost) ([212.77.101.240]) (envelope-sender ) by smtp.wp.pl (WP-SMTPD) with SMTP for ; 11 Apr 2012 12:28:24 +0200 Date: Wed, 11 Apr 2012 12:28:24 +0200 From: nissyre@wp.pl To: pgsql-general Subject: Query optimization Message-ID: <4f855cc8da7ef4.44131974@wp.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Transfer-Encoding: 8bit Content-Disposition: inline X-Mailer: Interfejs WWW nowej poczty Wirtualnej Polski X-User-Agent: Mozilla/5.0 (Windows NT 6.0) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.152 Safari/535.19 Organization: Poznaj Poczte WP http://poczta.wp.pl/info-start.html X-WP-IP: 217.168.137.146 X-WP-AV: skaner antywirusowy poczty Wirtualnej Polski S. A. X-WP-SPAM: NO 0000000 [wcOU] X-Pg-Spam-Score: 0.8 (/) X-Archive-Number: 201204/233 X-Sequence-Number: 186546 Hi, I'm looking for materials about query optimization in PostgreSQL. I read documentation but it doesnt contain much information. Can you recommend a good book or website when i could learn something about this? thanks in advance for your help