Re: returned row number

From: "Keith Worthington" <keithw(at)narrowpathinc(dot)com>
To: Bruno Wolff III <bruno(at)wolff(dot)to>
Cc: PostgreSQL Novice <pgsql-novice(at)postgresql(dot)org>
Subject: Re: returned row number
Date: 2005-05-06 21:00:21
Message-ID: 20050506205935.M94900@narrowpathinc.com
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On Fri, 6 May 2005 16:00:16 -0500, Bruno Wolff III wrote
> On Fri, May 06, 2005 at 15:45:02 -0400,
> Keith Worthington <keithw(at)narrowpathinc(dot)com> wrote:
> > Hi All,
> >
> > I have a quick question. Is there a simple way to access
> > the returned record number?
> >
> > I want to be able to do something like
> >
> > SELECT record AS record_no,
> > column1,
> > column2
> > FROM table1
> > WHERE column2 < 100
> > ORDER BY column1;
> >
> > record_no | column1 | column2
> > ----------+---------+---------
> > 1 | A | 1.75
> > 2 | F | 93
> > 3 | M | 12.5
> > 4 | N | 0
> > 5 | Q | 57.6
>
> Normally the best thing to do is have the application count.
> You can use a subquery to get the counts, but it will be a
> lot slower. You could also write a set returning function
> to do this.
>

This query is actually in a SRF.

Can you suggest how to proceed?

Kind Regards,
Keith

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