If so then why do you need to use "select distinct " ?!
BTW, I just tested on my 6.5.2, This query :
"Select distinct f1 from table1 order by f2 "
works the same as this one:
"select distinct f1,f2 from table1"
>From: Jeff MacDonald <jeff@pgsql.com>
>Reply-To: Jeff MacDonald <jeff@pgsql.com>
>To: Patrick FICHE <pfiche@prologue-software.fr>
>CC: Jeff MacDonald <jeff@pgsql.com>, Pgsql-Sql <pgsql-sql@postgresql.org>
>Subject: RE: [SQL] 7.0 weirdness
>Date: Tue, 30 May 2000 10:46:30 -0300 (ADT)
>
>gid is unique..
>
>jeff
>
>On Tue, 30 May 2000, Patrick FICHE wrote:
>
> > It seems to me that it was lack of control in 6.5 version...
> > For one "gid", you may have several "created" values, so Postgres is not
> > able to decide which value must be taken and ordered
> >
> > Simple example
> > gid created
> > 1 1
> > 1 3
> > 2 2
> >
> > In which order is Postgres supposed to give the data???
> >
> >
> > Patrick Fiche
> > -----Message d'origine-----
> > De : pgsql-sql-owner@hub.org [mailto:pgsql-sql-owner@hub.org]De la part
> > de Jeff MacDonald
> > Envoy� : mardi 30 mai 2000 14:28
> > � : pgsql-sql@postgresql.org; pgsql-hackers@postgresql.org
> > Objet : [SQL] 7.0 weirdness
> >
> >
> > hi folks,
> >
> > this query works fine in 6.5 but screwie in 7.0
> >
> > 7.0
> >
> > gm=> SELECT DISTINCT gid FROM members
> > gm-> WHERE active = 't'
> > gm-> AND (gender = 0
> > gm-> AND (wantrstypemale LIKE '%Short Term%'
> > gm-> OR wantrstypemale like '%Marriage%'
> > gm-> OR wantrstypemale like '%Long Term%'
> > gm-> OR wantrstypemale like '%Penpal%'
> > gm-> OR wantrstypemale like '%Activity Partner%')
> > gm-> ) order by created desc;
> > ERROR: For SELECT DISTINCT, ORDER BY expressions must appear in target
>list
> > gm=>
> >
> >
> > any idea's ?
> >
> > jeff
> >
> >
> >
> >
>
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