From: Richard Huxton <dev@archonet.com>
To: Adam Witney <awitney@sghms.ac.uk>,
	pgsql-sql <pgsql-sql@postgresql.org>
Subject: Re: query or design question
Date: Mon, 20 Oct 2003 18:12:49 +0100
User-Agent: KMail/1.5
References: <BBB97E48.26975%awitney@sghms.ac.uk>
In-Reply-To: <BBB97E48.26975%awitney@sghms.ac.uk>
MIME-Version: 1.0
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <200310201812.49869.dev@archonet.com>

On Monday 20 October 2003 11:58, Adam Witney wrote:
> Hi,
>
> I have a table like so
>
> CREATE TABLE imagene (
> id             int
> bioassay_id    int
> gene_id        text
> s_row          int
> s_column       int
> s_meta_row     int
> s_meta_column  int
> sig_median     numeric
> bkg_median     numeric
> );

> And I need to generate an output like this......
>
>              bioassay_id=106        bioassay_id=107
>          ----------------------  ----------------------
> gene_id, sig_median, bkg_median, sig_median, bkg_median


> I am not sure if a crosstab function will do this?

There are some examples in contrib/tablefunc that might well be useful for 
you. You should also check out the "Set Returning Functions" article on 
http://techdocs.postgresql.org/

If you find your requirements getting particularly complex, I'd be tempted to 
do the hard work in the application.

-- 
  Richard Huxton
  Archonet Ltd