On 4/2/06, Jim C. Nasby <jnasby@xxxxxxxxxxxxx> wrote: > On Sat, Apr 01, 2006 at 11:23:37AM +1000, chris smith wrote: > > On 4/1/06, Brendan Duddridge <brendan@xxxxxxxxxxxxxx> 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/
