Re: POSTGRES DB 3 800 000 rows table, speed up?

On Tue, Dec 27, 2005 at 11:25:37PM +0200, Eugene wrote:
> I've indexed first two columns they are IPfrom, IPto also table is btree
> version of postgre is 7.4.8, on hosting

You should ask them to upgrade; 7.4 is getting pretty old.

> I ask db like this  SELECT * FROM ipdb2 WHERE '3229285376' BETWEEN ipfrom  
> AND ipto;

I'm pretty sure PostgreSQL won't be able to use any indexes for this
(EXPLAIN ANALYZE would verify that). Instead, expand the between out:

WHERE ipfrom >= '...' AND ipto <= '...'

Also, generally speaking, databases and CamelCase don't mix too well;
you'll probably be happier doing something like ip_from and ip_to.
-- 
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
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