On 4/2/06, Jim C. Nasby <jnasby(at)pervasive(dot)com> wrote:
> On Sat, Apr 01, 2006 at 11:23:37AM +1000, chris smith wrote:
> > On 4/1/06, Brendan Duddridge <brendan(at)clickspace(dot)com> wrote:
> > > Hi Jim,
> > >
> > > I'm not quite sure what you mean by the correlation of category_id?
> >
> > It means how many distinct values does it have (at least that's my
> > understanding of it ;) ).
>
> Your understanding is wrong. :) What you're discussing is n_distinct.
Geez, I'm going well this week ;)
Thanks for the detailed info.
--
Postgresql & php tutorials
http://www.designmagick.com/