Received: from maia.hub.org (maia-2.hub.org [200.46.204.251]) by mail.postgresql.org (Postfix) with ESMTP id BBBAAB5DC01 for ; Wed, 20 Jul 2011 04:15:12 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.251]) (amavisd-maia, port 10024) with ESMTP id 95300-04 for ; Wed, 20 Jul 2011 07:15:06 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by mail.postgresql.org (Postfix) with ESMTP id 8AC57B5DC00 for ; Wed, 20 Jul 2011 04:15:06 -0300 (ADT) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1QjQzn-0007Qe-IZ for pgsql-sql@postgresql.org; Wed, 20 Jul 2011 09:15:03 +0200 Received: from 80.150.102.194 ([80.150.102.194]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 20 Jul 2011 09:15:03 +0200 Received: from spam_eater by 80.150.102.194 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 20 Jul 2011 09:15:03 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: pgsql-sql@postgresql.org From: Thomas Kellerer Subject: Re: to_char() accepting invalid dates? Date: Wed, 20 Jul 2011 09:15:15 +0200 Lines: 23 Message-ID: References: <201107200103.p6K13ix10517@momjian.us> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: 80.150.102.194 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.23) Gecko/20090812 Thunderbird/2.0.0.23 Mnenhy/0.7.6.666 In-Reply-To: <201107200103.p6K13ix10517@momjian.us> X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.148 tagged_above=-5 required=5 tests=BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_SORBS_WEB=0.77, RCVD_NUMERIC_HELO=1.164, RP_MATCHES_RCVD=-1.193, T_TO_NO_BRKTS_FREEMAIL=0.01 X-Spam-Level: X-Archive-Number: 201107/85 X-Sequence-Number: 35655 Bruce Momjian, 20.07.2011 03:03: >>> Well, to_char() is based on Oracle's to_char(). How does Oracle handle >>> such a date? >> >> Oracle throws an error for the above example: >> >> SQL> select to_date('20110231', 'YYYYMMDD') from dual; >> select to_date('20110231', 'YYYYMMDD') from dual >> * >> ERROR at line 1: >> ORA-01839: date not valid for month specified >> >> SQL> > > OK, it's a bug then. Let me see if I can find a fix for it. Thanks for the info. I didn't know it was modelled after the Oracle implementation. Regards Thomas