Re: FW: Simple join optimized badly?

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От Mark Kirkwood
Тема Re: FW: Simple join optimized badly?
Дата
Msg-id 452E11FB.7070704@paradise.net.nz
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Ответ на FW: Simple join optimized badly?  ("H.J. Sanders" <hjs@rmax.nl>)
Ответы Re: FW: Simple join optimized badly?
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H.J. Sanders wrote:

>  why not just like in some other (commercial) databases:
>
>  a statement to say: use index ............
>
>  I know this is against all though but if even the big ones can not resist
>  the pressure of their users, why not?
>

Yeah - some could not (e.g. Oracle), but some did (e.g. DB2), and it
seemed (to me anyway) significant DB2's optimizer worked much better
than Oracle's last time I used both of them (Oracle 8/9 and DB2 7/8).

cheers

Mark

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