X-Original-To: pgsql-sql@postgresql.org
Received: from fzkmail2.fzk.de (fzkmail2.fzk.de [141.52.27.52])
	by postgresql.org (Postfix) with SMTP id D5C094760CC
	for <pgsql-sql@postgresql.org>; Fri,  7 Mar 2003 08:15:30 -0500 (EST)
Received: FROM resy5.fzk.de BY fzkmail2.fzk.de ;
 Fri Mar 07 14:15:33 2003 +0100
Received: œby rodos.fzk.de with ESMTP (8.8.6 (PHNE_17135)/8.7.1) id OAA22669; Fri, 7 Mar 2003 14:15:33 +0100 (MET)
Message-ID: <3E689B74.703028EF@rodos.fzk.de>
Date: Fri, 07 Mar 2003 14:15:32 +0100
From: Christoph Haller <ch@rodos.fzk.de>
X-Mailer: Mozilla 4.77 [en] (X11; U; HP-UX B.10.20 9000/780)
X-Accept-Language: en
MIME-Version: 1.0
To: pgsql-sql@postgresql.org
Cc: m@mat.cc
Subject: Re: problem with subselect
Content-Type: text/plain; charset=iso-8859-2
Content-Transfer-Encoding: 7bit
X-Archive-Number: 200303/191
X-Sequence-Number: 12231

>
> I have this :
>
> SELECT   date_trunc('month', f.date_creation) as mois,
>          sum(f.montant_ttc / d.taux) as facture,
>          (SELECT  sum(f2.montant_ttc / d2.taux) as facture2
>           FROM facture AS f2 JOIN devise AS d2 USING (id_devise)
>           WHERE date_trunc('month', f2.date_creation)
>                 <= date_trunc('month', f.date_creation))
> FROM   facture AS f JOIN devise AS d USING (id_devise)
> GROUP BY   date_trunc('month', f.date_creation)
>
> which does not work... telling me that
>
> "Sub-SELECT uses un-GROUPed attribute f.date_creation from outer
query"
> Which is not really true, but some way is...
>
> What I want is to get the sum of the month, and the sum of the month
and
> the previous.
>
> If someone has a clue, something, anything... :)
>
Try
... GROUP BY  mois ;

Regards, Christoph