Re: Ordering YYYY MM DD in reverse chrono order

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От Clodoaldo Pinto Neto
Тема Re: Ordering YYYY MM DD in reverse chrono order
Дата
Msg-id 20040426155555.59375.qmail@web40906.mail.yahoo.com
обсуждение исходный текст
Ответ на Ordering YYYY MM DD in reverse chrono order  (otis_usenet@yahoo.com (OtisUsenet))
Список pgsql-general
Did you try

ORDER BY
date_part('year', uu.add_date) desc, date_part('month', uu.add_date) desc,
date_part('day',  uu.add_date) DESC;

Regards,
Clodoaldo
 --- OtisUsenet <otis_usenet@yahoo.com> escreveu: > 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!
>
> ---------------------------(end of broadcast)---------------------------
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>
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