Re: to_char() and order-by

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
limit10;
 
   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