Content-Type: text/plain;
  charset="iso-8859-1"
From: Gary Stainburn <gary.stainburn@ringways.co.uk>
Organization: Ringways Garages Ltd
To: pgsql-sql@postgresql.org
Subject: Re: Concat and view - Re: create view error
Date: Mon, 7 Jul 2003 16:10:25 +0100
User-Agent: KMail/1.4.3
References: <200307071240.23936.gary.stainburn@ringways.co.uk>
	<200307071401.38483.gary.stainburn@ringways.co.uk>
	<200307071534.20970.dev@archonet.com>
In-Reply-To: <200307071534.20970.dev@archonet.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Message-Id: <200307071610.25690.gary.stainburn@ringways.co.uk>

On Monday 07 Jul 2003 3:34 pm, Richard Huxton wrote:
> On Monday 07 Jul 2003 2:12 pm, Gary Stainburn wrote:
> > I've managed to get the view I wanted by using sub-selects - as shown
> > below, but I now have the 'lid' field showing in the resulting view three
> > times (as lid, lnid and lnaid).  How can I remove lnid and lnaid from the
> > result?
> >
> > create view loco_dets as
> >   select * from locos l
> >       left outer join
>
> [snip]
>
> Don't do "select *" do "select field_a,field_b..." - the * doesn't just
> refer to the locos table.

Sorry if I didn't make myself plain enough, but I had

create view loco_dets as 
    select * from locos l               -- includes lid which I want
       left outer join
          (select lnid, lnumber.......) ln on ln.lnid = l.lid
.......

The problem is that I have to have lnid in the sub-select to allow the 'on' 
clause to work, but I don't want lnid to appear in the resulting view.

-- 
Gary Stainburn
 
This email does not contain private or confidential material as it
may be snooped on by interested government parties for unknown
and undisclosed purposes - Regulation of Investigatory Powers Act, 2000