>Hi everybody,
>
>Does anyone know whether VFP Select-SQL with Group By option creates a temp result set without group by first and then performs GROUP BY? Or how exactly GROUP BY works?
>
>Here is the reason I'm asking:
>
>I had select sql that returned data as a temp cursor, then I performed Group By on it to obtain results I wanted. I then figured out, that I don't need this intermediate cursor and I better would do Group By in this cursor right away. I was expecting a performance gain by doing so. However, I don't seem to have this performance gain. I haven't measured the times (my mistake, since I can not revert the code that easily), but I have an impression that speed is the same or even worse.
>
>Thanks in advance for your input.

GROUP BY is not optimizable