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From: Pablo Barrón <amentoraz@gmail.com>
To: pgsql-sql@postgresql.org
Subject: ordering by multiple columns
Date: Wed, 14 Mar 2007 16:50:34 +0100
Message-ID: <d4d13b4c0703140850i4957116bw8a25255131a56346@mail.gmail.com> (raw)

 Hi!

 I'm trying to order a list in which the first parameter to order is a
specific field, and the second should vary depending on a specific
condition. More explicit, I would like to do something like:

 - ORDER BY a.column1, [b.column2 if c.value != 19 || c.column2 if
c.value==19]

 That is to say, use a column if a value on each row isn't 19, OR use a
different column if it isn't. How could I solve this? I've got to have a
global order over my query, so I cannot separate it into two queries, etc
:-?

 Thank you!

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