Received: from localhost (unknown [200.46.204.184]) by postgresql.org (Postfix) with ESMTP id 6A8979F9854 for ; Sat, 3 Nov 2007 22:45:50 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.184]) (amavisd-maia, port 10024) with ESMTP id 96785-02 for ; Sat, 3 Nov 2007 22:45:33 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by postgresql.org (Postfix) with ESMTP id 6665D9F9847 for ; Sat, 3 Nov 2007 22:45:41 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.1/8.14.1) with ESMTP id lA41jbi2003370; Sat, 3 Nov 2007 21:45:37 -0400 (EDT) To: "Whatever Deep" cc: pgsql-performance@postgresql.org Subject: Re: "MixedCase sensitive quoted" names In-reply-to: <4438f1690711031640t759aa734i25dc5b9ff7979e33@mail.gmail.com> References: <4438f1690711031640t759aa734i25dc5b9ff7979e33@mail.gmail.com> Comments: In-reply-to "Whatever Deep" message dated "Sun, 04 Nov 2007 00:40:42 +0100" Date: Sat, 03 Nov 2007 21:45:37 -0400 Message-ID: <3369.1194140737@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200711/43 X-Sequence-Number: 27458 "Whatever Deep" writes: > This question may sound dumb, but I would like to know if using > "MixedCase sensitive quoted" names instead of lowercase names for > object names has any negative hit to the database performance. I can't imagine you could measure any performance difference ... the two cases involve slightly different code paths in scan.l, but after that it doesn't matter. regards, tom lane