Re: indexes and big tables

> I would guess the problem is the restriction on counterstamp, because
> written like that, it probably can't use the index.
>
> try something where you avoid the use of the date_part function e.g.:
>     AND counterstamp > '2001-07-26 00:00:00.0'
 I will try it, but it use the index when there is a few amount of rows.
When I insert a lot of rows like me (in milions), index isn't used. I don't
know the number of rows which makes border between using and don't using
index and I can discover it if you want. Going to try your suggestions ...

Best regards, Robert

--   _ |-|  __      Robert Vojta <vojta-at-ipex.cz>          -= Oo.oO =- |=| [Ll]     IPEX, s.r.o. "^" ====`o