Received: from maia.hub.org (maia-2.hub.org [200.46.204.251]) by mail.postgresql.org (Postfix) with ESMTP id 481AA1981822 for ; Tue, 8 Nov 2011 06:01:59 -0400 (AST) 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 93152-07 for ; Tue, 8 Nov 2011 10:01:53 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0-rc2 Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by mail.postgresql.org (Postfix) with ESMTP id 54EB81981821 for ; Tue, 8 Nov 2011 06:01:52 -0400 (AST) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1RNiV4-000805-Rn for pgsql-sql@postgresql.org; Tue, 08 Nov 2011 11:01:51 +0100 Received: from ip-118-90-61-76.xdsl.xnet.co.nz ([118.90.61.76]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 08 Nov 2011 11:01:50 +0100 Received: from jasen by ip-118-90-61-76.xdsl.xnet.co.nz with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 08 Nov 2011 11:01:50 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: pgsql-sql@postgresql.org From: Jasen Betts Subject: Re: Number timestamped rows Date: 8 Nov 2011 09:36:12 GMT Organization: Dis (not Dat) Organisation Lines: 18 Message-ID: References: <20111102163619.135780@gmx.net> 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-118-90-61-76.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-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-3.101 tagged_above=-5 required=5 tests=BAYES_00=-1.9, RP_MATCHES_RCVD=-1.201 X-Spam-Level: X-Archive-Number: 201111/31 X-Sequence-Number: 36004 On 2011-11-02, Jan Peters wrote: > Dear all, > maybe a stupid question, but: I have a table that is ordered like this: > Tables aren't ordered. Sometimes they may seem to be ordered, but they seldom stay that way for long. > and I would like to number them according to their timestamps like this: > How would I do this with an UPDATE statement (e.g.) in pgsql? If you want ordered data use an ORDER BY clause in the select, there is no other reliable way. -- ⚂⚃ 100% natural