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From: Dawid Kuroczko <qnex42@gmail.com>
To: M.D.G. Lange <mlange@dltmedia.nl>
To: pgsql-sql@postgresql.org
Subject: Re: ORDER records based on parameters in IN clause
Date: Thu, 30 Jun 2005 09:51:35 +0200
Message-ID: <758d5e7f05063000514ece9e33@mail.gmail.com> (raw)
In-Reply-To: <42C3A0A3.40101@dltmedia.nl>
References: <BAY103-F2C56F6C371B9B2FDEEDCBB5E00@phx.gbl>
	<1120057638.8208.117.camel@state.g2switchworks.com>
	<42C3A0A3.40101@dltmedia.nl>

On 6/30/05, M.D.G. Lange <mlange@dltmedia.nl> wrote:
> Another option would be:
> SELECT * FROM table WHERE id=2003 OR id=1342 OR id=799 OR id=1450;
> This should give you the results in the right order...

I don't think so...


create temporary table seq as select * from generate_series(1,20) as g(id);
select * from seq where id in (5,2,12);
 id 
----
  2
  5
 12


select * from seq where id = 5 or id = 2 or id = 12;
 id 
----
  2
  5
 12

It certainly doesn't work.

You have to order it by something, like:

select * from seq where id in(5,2,12) order by id=5 desc,id=2 desc,id=12 desc;
 id 
----
  5
  2
 12


Regards,
    Dawid



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