From: Dawid Kuroczko <qnex42@gmail.com>
To: Riya Verghese <riya.verghese@admissioncorp.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: ORDER records based on parameters in IN clause
Date: Wed, 29 Jun 2005 13:44:00 +0200
Message-ID: <758d5e7f05062904445112c493@mail.gmail.com> (raw)
In-Reply-To: <BBA4F47BB0CEDD4D8ADD2FE21E2823673110A4@dhost002-37.dex002.intermedia.net>
References: <BBA4F47BB0CEDD4D8ADD2FE21E2823673110A4@dhost002-37.dex002.intermedia.net>
On 6/27/05, Riya Verghese <riya.verghese@admissioncorp.com> wrote:
> I have a stmt where the outer-query is limited by the results of the inner
> query. I would like the outer query to return records in the same order as
> the values provided in the IN clause (returned form the inner query).
>
> The inner_query is returning id's ordered by count(id) , i.e by most common
> occurrence.
>
> In essence,
>
> when I say
>
> select * from table where id IN (2003,1342,799, 1450)
>
> Currently postgres returns it in this order (1450,1342,799,2003)
Simplest, though not niciest solution would be:
SELECT * FROM table WHERE id IN (2003,1342,799,1450) ORDER BY id =
2003 DESC, id = 1342 DESC, id = 799 DESC, id = 1450 DESC;
You could write a function which will return position of interger
inside integer[] array and use it as order key. :-)
Regards,
Dawid
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To: pgsql-sql@postgresql.org
Cc: qnex42@gmail.com, riya.verghese@admissioncorp.com
Subject: Re: ORDER records based on parameters in IN clause
In-Reply-To: <758d5e7f05062904445112c493@mail.gmail.com>
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