The slow / fast happens in random order.

> ok.
>
> The first query is slow and the others are fast, or the slow/fast
> happens in random order ?
>
> see you !
>
> --
> Alexandre Benson Smith
> Development
> THOR Software e Comercial Ltda
> Santo Andre - Sao Paulo - Brazil
> www.thorsoftware.com.br
>