>Hi Fabio,
>
>I did not test speed here. I see what you're doing here though, trying to use rushmore to let the db engine to come to to the conclusion earlier that there is no match. It is somewhat a pitty that the DB engine is not able to determine that in the first place by using a constant like .F.
>
>Walter,
>

I Agree.

VFP Engine cut a WHERE .F. or a INNER JOIN ON .F.

But LEFT/RIGHT/FULL JOIN are executed with a CARTESIAN product !!

Fabio