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Re: Ordering returned rows according to a list

From: "Adam Rich" <adam(dot)r(at)sbcglobal(dot)net>
To: "'Sebastian Tennant'" <sebyte(at)smolny(dot)plus(dot)com>,<pgsql-general(at)postgresql(dot)org>
Subject: Re: Ordering returned rows according to a list
Date: 2008-12-22 17:32:45
Message-ID: 005801c9645b$4d7785d0$e8669170$ (view raw, whole thread or download thread mbox)
Lists: pgsql-general
> Hi all,
> I'd like to make a single query that returns a number of rows using a
> 'WHERE id IN (<list-of-ids>)' condition, but I'd like the rows to be
> returned in the order in which the ids are given in the list.
> Is this possible?

Depending on how many IDs you have in your list, you can accomplish this
with a CASE statement:

WHERE id IN (6, 9, 3)
WHEN 6 then 1
WHEN 9 then 2
WHEN 3 then 3 END

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