From: Karel Zak <zakkr@zf.jcu.cz>
To: Jeff Boes <jboes@nexcerpt.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: to_char() and order-by
Date: Fri, 28 Jun 2002 09:59:37 +0200
Message-ID: <20020628095937.A13987@zf.jcu.cz> (raw)
In-Reply-To: <d40a65a1.0206271127.45c44b7d@posting.google.com>
References: <d40a65a1.0206271127.45c44b7d@posting.google.com>
On Thu, Jun 27, 2002 at 12:27:11PM -0700, Jeff Boes wrote:
> Perhaps this was covered in the 7.2.x release notes, but it's mystifying us:
Please, how are data without to_char()?
select time_link from stat_fetch
where time_link is not null
order by 1 desc limit 10;
Karel
> select to_char(time_link,'999.99') from stat_fetch
> where time_link is not null
> order by 1 desc limit 10;
>
> (time_link is a double-precision column.) Under 7.1.3, this returns results like:
>
> to_char
> ---------
> 9.99
> 9.99
> 9.99
> 9.99
> 9.99
> 9.99
> 9.99
> 9.99
> 9.99
> 9.99
> (10 rows)
>
> while under 7.2.1, you get the top 10 rows in *numerical* order:
>
> to_char
> ---------
> 278.78
> 261.07
> 240.25
> 180.24
> 173.26
> 160.35
> 159.02
> 144.57
> 134.21
> 131.66
> (10 rows)
--
Karel Zak <zakkr@zf.jcu.cz>
http://home.zf.jcu.cz/~zakkr/
C, PostgreSQL, PHP, WWW, http://docs.linux.cz, http://mape.jcu.cz
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To: pgsql-sql@postgresql.org
Cc: zakkr@zf.jcu.cz, jboes@nexcerpt.com
Subject: Re: to_char() and order-by
In-Reply-To: <20020628095937.A13987@zf.jcu.cz>
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