From: ogjunk-pgjedan@yahoo.com
To: pgsql-sql@postgresql.org
Subject: Order by YYYY MM DD in reverse chrono order trouble
Date: Wed, 21 Apr 2004 03:30:03 -0700 (PDT)
Message-ID: <20040421103003.79774.qmail@web12703.mail.yahoo.com> (raw)
Hello,
I am trying to select distinct dates and order them in the reverse
chronological order. Although the column type is TIMESTAMP, in this
case I want only YYYY, MM, and DD back.
I am using the following query, but it's not returning dates back in
the reverse chronological order:
SELECT DISTINCT
date_part('year', uu.add_date), date_part('month', uu.add_date),
date_part('day', uu.add_date)
FROM uus INNER JOIN ui ON uus.user_id=ui.id INNER JOIN uu ON
ui.id=uu.user_id
WHERE uus.x_id=1
ORDER BY
date_part('year', uu.add_date), date_part('month', uu.add_date),
date_part('day', uu.add_date) DESC;
This is what the above query returns:
date_part | date_part | date_part
-----------+-----------+-----------
2004 | 2 | 6
2004 | 4 | 20
(2 rows)
I am trying to get back something like this:
2004 4 20
2004 4 19
2004 2 6
...
My query is obviously wrong, but I can't see the mistake. I was
wondering if anyone else can see it. Just changing DESC to ASC, did
not work.
Thank you!
Otis
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Subject: Re: Order by YYYY MM DD in reverse chrono order trouble
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