Received: from maia.hub.org (maia-3.hub.org [200.46.204.243]) by mail.postgresql.org (Postfix) with ESMTP id 6E4191337BA6 for ; Thu, 27 Jan 2011 17:33:46 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.243]) (amavisd-maia, port 10024) with ESMTP id 17563-01 for ; Thu, 27 Jan 2011 21:33:38 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from hrndva-omtalb.mail.rr.com (hrndva-omtalb.mail.rr.com [71.74.56.123]) by mail.postgresql.org (Postfix) with ESMTP id C71151337B4E for ; Thu, 27 Jan 2011 17:33:38 -0400 (AST) X-Authority-Analysis: v=1.1 cv=3uSaImBeuprzHBlOOPjkqgu+7PcxSRW0m2Aphm9Zmck= c=1 sm=0 a=cYhYf6uZ5ZgA:10 a=8nJEP1OIZ-IA:10 a=RAii6je2cdnAH6ATCOpc6g==:17 a=_Ixf_7qHAAAA:8 a=SOv0ZBkdSs0sW7rnCDMA:9 a=zZCmxEuJNXYfoZlZT0dUSq0WNmEA:4 a=wPNLvfGTeEIA:10 a=ryAo9hy1-OkA:10 a=6vsjEBoLwlAA:10 a=0tfO7MgyNwYA:10 a=RAii6je2cdnAH6ATCOpc6g==:117 X-Cloudmark-Score: 0 X-Originating-IP: 74.73.87.196 Received: from [74.73.87.196] ([74.73.87.196:53203] helo=[192.168.1.103]) by hrndva-oedge04.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id D9/FA-04612-2B4E14D4; Thu, 27 Jan 2011 21:33:38 +0000 Message-ID: <4D41E4B2.4070000@vmsinfo.com> Date: Thu, 27 Jan 2011 16:33:38 -0500 From: Mladen Gogala User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.13) Gecko/20101207 Lightning/1.0b2 Thunderbird/3.1.7 MIME-Version: 1.0 To: Scott Marlowe CC: Igor Neyman , Tom Lane , David Wilson , Kenneth Marshall , "pgsql-performance@postgresql.org" Subject: Re: Postgres 9.0 has a bias against indexes References: <4D419214.8060003@vmsinfo.com> <20110127154539.GE6475@aart.is.rice.edu> <4D41959B.8020901@vmsinfo.com> <17268.1296146447@sss.pgh.pa.us> <4D41A496.70205@vmsinfo.com> <4D41D62C.40501@vmsinfo.com> <4D41D91A.3010308@vmsinfo.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.9 tagged_above=-10 required=5 tests=BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001 X-Spam-Level: X-Archive-Number: 201101/301 X-Sequence-Number: 42088 On 1/27/2011 4:25 PM, Scott Marlowe wrote: > On Oracle? Then how can it get the values it needs without having to > hit the data store? It can't. It does hit the data store. -- Mladen Gogala Sr. Oracle DBA 1500 Broadway New York, NY 10036 (212) 329-5251 www.vmsinfo.com