On Fri, 25 Jun 2004, Michael Stassen wrote:

> 
> Sergio Salvi wrote:
> > Hi!
> > 
> > Can you send the output of the following command?
> > 
> > show index from ip2org;
> > 
> > It seems you don't have an index on both fields (even though it says you 
> > have multi-field index)...
> 
> MUL doesn't mean part of a multi-field index.  From the manual 
> <http://dev.mysql.com/doc/mysql/en/DESCRIBE.html>: "The MUL value indicates 
> that multiple occurences of a given value allowed within the field."
> 

Right! Thanks for noting that.

[]s,
Salvi.

> 
> 
> > 
> > []s,
> > Sergio Salvi.
> > 
> > On Thu, 24 Jun 2004, MerchantSense wrote:
> > 
> > 
> >>Hi - I need some help :)
> >>
> >> I set up a simple mysql table:
> >> 
> >> mysql> describe ip2org;
> >> +----------+-------------+------+-----+---------+-------+
> >> | Field    | Type        | Null | Key | Default | Extra |
> >> +----------+-------------+------+-----+---------+-------+
> >> | ip_start | bigint(20)  |      | MUL | 0       |       |
> >> | ip_end   | bigint(20)  |      | MUL | 0       |       |
> >> | org      | varchar(80) |      |     |         |       |
> >> +----------+-------------+------+-----+---------+-------+
> >> 3 rows in set (0.00 sec)
> >> 
> >> It's got just over 2 million  rows, and is populated with integers.
> >>
> >> I do this:
> >> SELECT org from ip2org where ip_start<=1094799892 and 
> >> ip_end>=1094799892;
> >> 
> >> and it take 12 seconds...!
> >> 
> >> all my indexes seem to be there:
> >> mysql> explain SELECT org from ip2org where ip_start<=1094799892 and
> >> ip_end>=1094799892;
> >> 
> >>| table  | type | possible_keys   | key  | key_len | ref  | rows    | Extra
> >>| ip2org | ALL  | ip_start,ip_end | NULL |    NULL | NULL | 2943079 |where
> >>used |
> >>
> >> is this normal?  the fields are simple numbers, so it should be 
> >> lightning fast, no?  I realize it's a big table, but it's just numbers.
> >>this should come back instantly, no?
> >> thanks!
> >> 
> >>
> >>
> >>
> >>
> >>
> > 
> > 
> > 
> 
> 
> 



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