On Jan 18 09:33, Michael Glaesemann wrote:
> On Jan 18, 2006, at 20:55 , Volkan YAZICI wrote:
> >SELECT t.id
> >FROM (SELECT id, sum(1) AS s
> > FROM id_n_rights
> > WHERE rights = ANY(ARRAY[2,5,10])
> > GROUP BY id) AS t
> >WHERE t.s = 3;
AFAICS, the bottleneck in above query is ANY(ARRAY[]) clause usage.
Instead of that, if you replace «rights = ANY(ARRAY[2,5,10])» with
«rights IN (2,5,10)» it's overhead decreases to 0.200-0.300ms domain.
Regards.
