X-Original-To: pgsql-sql-postgresql.org@postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 4FA859FB27A for ; Fri, 15 Sep 2006 05:44:47 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 40604-01 for ; Fri, 15 Sep 2006 05:44:34 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.186]) by postgresql.org (Postfix) with ESMTP id 7D6CF9FB248 for ; Fri, 15 Sep 2006 05:44:28 -0300 (ADT) Received: from [194.25.154.138] (helo=webserv.wug.de) by mrelayeu.kundenserver.de (node=mrelayeu2) with ESMTP (Nemesis), id 0MKwtQ-1GO9JC2vsN-0003UY; Fri, 15 Sep 2006 10:44:27 +0200 Received: from kretschmer by webserv.wug.de with local (Exim 3.36 #1) id 1GO9JB-00064t-00 for pgsql-sql@postgresql.org; Fri, 15 Sep 2006 10:44:25 +0200 Date: Fri, 15 Sep 2006 10:44:25 +0200 From: "A. Kretschmer" To: pgsql-sql@postgresql.org Subject: Re: lower() not working correctly...? Message-ID: <20060915084425.GC21235@a-kretschmer.de> References: <200609151006.40801.andreak@officenet.no> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200609151006.40801.andreak@officenet.no> User-Agent: Mutt/1.5.9i X-Provags-ID: kundenserver.de abuse@kundenserver.de login:51ea9561fc3f6d9539a2acd743e4748c X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.533 tagged_above=0 required=5 tests=AWL, SPF_HELO_PASS X-Spam-Level: X-Archive-Number: 200609/103 X-Sequence-Number: 26314 am Fri, dem 15.09.2006, um 10:06:40 +0200 mailte Andreas Joseph Krogh folgendes: > I have the following query: > > select lower(firstname) || ' ' || lower(lastname) from person > > firstname and lastname are VARCHAR > > lower() returns NULL when firstname OR lastname is NULL, is this correct? Yes. You can user coalesce for this: select coalesce(lower(firstname),'') || ... HTH, Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47215, D1: 0160/7141639 (mehr: -> Header) GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net