Received: from maia.hub.org (maia-3.hub.org [200.46.204.243]) by mail.postgresql.org (Postfix) with ESMTP id 008431337B8A for ; Mon, 31 Jan 2011 12:24:16 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.243]) (amavisd-maia, port 10024) with ESMTP id 98543-07 for ; Mon, 31 Jan 2011 16:24:09 +0000 (UTC) X-Greylist: delayed 00:33:24.014123 by SQLgrey-1.7.6 Received: from oldperseverance.encs.concordia.ca (oldperseverance.encs.concordia.ca [132.205.96.94]) by mail.postgresql.org (Postfix) with ESMTP id AA4F21337B84 for ; Mon, 31 Jan 2011 12:24:08 -0400 (AST) Received: from cacao.encs.concordia.ca (emilu@cacao.encs.concordia.ca [132.205.47.225]) by oldperseverance.encs.concordia.ca (envelope-from emilu@encs.concordia.ca) (8.13.7/8.13.7) with ESMTP id p0VFohdf013210 for ; Mon, 31 Jan 2011 10:50:43 -0500 Message-ID: <4D46DA53.9050402@encs.concordia.ca> Date: Mon, 31 Jan 2011 10:50:43 -0500 From: Emi Lu Reply-To: emilu@encs.concordia.ca User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.16) Gecko/20101125 Lightning/1.0b1 Thunderbird/3.0.11 MIME-Version: 1.0 To: pgsql-sql@postgresql.org Subject: Get days between two dates? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.58 on oldperseverance.encs.concordia.ca at 2011/01/31 10:50:43 EST X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.91 tagged_above=-5 required=5 tests=BAYES_00=-1.9, T_RP_MATCHES_RCVD=-0.01 X-Spam-Level: X-Archive-Number: 201101/123 X-Sequence-Number: 35070 Good morning, Is there an existing method to get days between two dates? For example, select '2010-01-01'::date - '1999-10-12'::date Returns how many days. Thank you, -- Lu Ying