Re: numeric SORT order

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От Ben Ausden
Тема Re: numeric SORT order
Дата
Msg-id 4174BB57B89ED411A8BB000102A30F51406156@NAVY
обсуждение исходный текст
Ответ на numeric SORT order  (Ben Ausden <benedict@navyblue.com>)
Ответы Re: numeric SORT order  (Jeff Eckermann <jeff_eckermann@yahoo.com>)
Список pgsql-general
thanks Mitch.
the problem is that casting to int won't work for non-numeric data
(obviously), and I can't guarantee that values in this column will
definitely be numeric... I should have made that clearer in my post. Ideally
I'd like to sort numbers in numeric order and text in regular alphabetic
order, like: 1,2,3,40,50,a,b,c,d,e...[etc]


-ben

> -----Original Message-----
> From: Mitch Vincent [mailto:mitch@doot.org]
> Sent: 28 January 2002 21:07
> To: Ben Ausden; pgsql-general@postgresql.org
> Subject: Re: [GENERAL] numeric SORT order
>
>
> select * from whatever order by field1::text::integer;
>
> seems to work..
>
>
> ----- Original Message -----
> From: "Ben Ausden" <benedict@navyblue.com>
> To: <pgsql-general@postgresql.org>
> Sent: Monday, January 28, 2002 1:47 PM
> Subject: [GENERAL] numeric SORT order
>
>
> > Hi,
> >
> >
> > Is there any way to persuade postgresql to sort a VARCHAR column in
> numeric
> > order first, and then text order?
> >
> > e.g
> >
> > 1, 2, 3, 10, 20, 25, 30, 40
> >
> > instead of:
> >
> > 1, 10, 2, 20, 25, 3, 30, 40
>

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