Received: from makus.postgresql.org (makus.postgresql.org [98.129.198.125]) by mail.postgresql.org (Postfix) with ESMTP id 7C560C05965 for ; Mon, 13 Feb 2012 04:20:16 -0400 (AST) Received: from plane.gmane.org ([80.91.229.3]) by makus.postgresql.org with esmtp (Exim 4.72) (envelope-from ) id 1Rwr8x-0004ih-Oe for pgsql-sql@postgresql.org; Mon, 13 Feb 2012 08:20:16 +0000 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Rwr8k-0002ox-Pv for pgsql-sql@postgresql.org; Mon, 13 Feb 2012 09:20:02 +0100 Received: from ip-118-90-57-128.xdsl.xnet.co.nz ([118.90.57.128]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 13 Feb 2012 09:20:02 +0100 Received: from jasen by ip-118-90-57-128.xdsl.xnet.co.nz with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 13 Feb 2012 09:20:02 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: pgsql-sql@postgresql.org From: Jasen Betts Subject: Re: time interval math Date: 11 Feb 2012 03:18:43 GMT Organization: Dis (not Dat) Organisation Lines: 12 Message-ID: References: <032001cce69c$767bc010$63734030$@com> <034901cce737$86614180$9323c480$@com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: ip-118-90-57-128.xdsl.xnet.co.nz X-Face: ?)Aw4rXwN5u0~$nqKj`xPz>xHCwgi^q+^?Ri*+R(&uv2=E1Q0Zk(>h!~o2ID@6{uf8s; a +M[5[U[QT7xFN%^gR"=tuJw%TXXR'Fp~W; (T"1(739R%m0Yyyv*gkGoPA.$b,D.w:z+<'"=-lVT?6 {T?=R^:W5g|E2#EhjKCa+nt":4b}dU7GYB*HBxn&Td$@f%.kl^:7X8rQWd[NTc"P"u6nkisze/Q; 8 "9Z{peQF,w)7UjV$c|RO/mQW/NMgWfr5*$-Z%u46"/00mx-,\R'fLPe.)^ User-Agent: slrn/pre1.0.0-18 (Linux) X-Pg-Spam-Score: 0.8 (/) X-Archive-Number: 201202/40 X-Sequence-Number: 36333 On 2012-02-09, Edward W. Rouse wrote: >> the operation abs() is meaninless on the type interval >> eg: what is abs( '1 month - 32 days + 24 hours'::interval ) > > If you need to add 30 intervals together, then +- is not meaningless. if you stop reading after one line you miss the answer. -- ⚂⚃ 100% natural