X-Original-To: pgsql-hackers-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [64.117.224.130]) by svr1.postgresql.org (Postfix) with ESMTP id 16C6ED1C517 for ; Thu, 7 Aug 2003 22:51:20 +0000 (GMT) Received: from svr1.postgresql.org ([64.117.224.193]) by localhost (neptune.hub.org [64.117.224.130]) (amavisd-new, port 10024) with ESMTP id 42067-03 for ; Thu, 7 Aug 2003 19:49:57 -0300 (ADT) Received: from sss.pgh.pa.us (unknown [192.204.191.242]) by svr1.postgresql.org (Postfix) with ESMTP id 23F1ED1C488 for ; Thu, 7 Aug 2003 19:51:09 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.12.9/8.12.9) with ESMTP id h77Mp3Sa009453; Thu, 7 Aug 2003 18:51:03 -0400 (EDT) To: Sean Chittenden Cc: Manfred Koizar , pgsql-hackers@postgresql.org Subject: Re: Correlation in cost_index() In-reply-to: <20030807204419.GJ94710@perrin.int.nxad.com> References: <29475.1033598929@sss.pgh.pa.us> <20030807204419.GJ94710@perrin.int.nxad.com> Comments: In-reply-to Sean Chittenden message dated "Thu, 07 Aug 2003 13:44:19 -0700" Date: Thu, 07 Aug 2003 18:51:03 -0400 Message-ID: <9452.1060296663@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: by amavisd-new at postgresql.org X-Archive-Number: 200308/419 X-Sequence-Number: 42077 Sean Chittenden writes: > Hrm, after an hour of searching and reading, I think one of the better > papers on the subject can be found here: > http://www.cs.ust.hk/faculty/dimitris/PAPERS/TKDE-NNmodels.pdf Interesting paper, but I don't see the connection to index order correlation? regards, tom lane