Received: from localhost (postgresql.org [64.49.215.8]) by postgresql.org (Postfix) with ESMTP id 4CA14476195 for ; Fri, 1 Nov 2002 15:18:05 -0500 (EST) Received: from mta4.snet.net (mta4.snet.net [204.60.203.76]) by postgresql.org (Postfix) with ESMTP id 9E3D8475FDD for ; Fri, 1 Nov 2002 15:18:04 -0500 (EST) Received: from pop.snet.net (pop.snet.net [204.60.203.72]) by mta4.snet.net (8.12.3/8.12.3/SNET-mx-1.2/D-1.1.1.1/O-1.1.1.1) with ESMTP id gA1KHeUm005175 for ; Fri, 1 Nov 2002 15:17:40 -0500 (EST) X-Originating-IP: [64.252.95.167] X-SBCIS-MTA: [pop.snet.net] Received: from [192.168.1.83] (167.95.252.64.snet.net [64.252.95.167]) by pop.snet.net (8.12.3/8.12.3/SNET-pop-1.2/D-1.1.1.1/O-1.1.1.1) with ESMTP id gA1KHpH8026296 for ; Fri, 1 Nov 2002 15:17:52 -0500 (EST) Subject: Does this matter? From: Wei Weng To: pgsql-performance@postgresql.org Content-Type: text/plain Organization: Message-Id: <1036181881.24810.1.camel@Monet> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.1.90 (Preview Release) Date: 01 Nov 2002 15:18:01 -0500 Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS new-20020517 X-Archive-Number: 200211/10 X-Sequence-Number: 168 Does it make a performance difference if I use a char(20) or a char(36) as the primary key? My thought is no, but I would like to hear more opinions. And a little further off topic(since we have many database experts here), does it matter on MS SQL server 7? Thanks! -- Wei Weng Network Software Engineer KenCast Inc.