Metalink note 66030.1 cites a bit of information along these lines (not that I've verified its
content).
I do remember an Oracle internals person (name I cannot recall) telling me that the tweak was done
specifically for Ora Apps where there's a keen-ness to join dozens of tables.
Cheers
Connor
- Wolfgang Breitling <breitliw_at_centrexcc.com> wrote: > Thanks, Kirti.
> As I said, I was reciting from memory and that is becoming very
> questionable at my age.
> I seem to remember having seen those two special numbers mentioned
> somewhere. I'll see if I can dig it up when I get home.
>
> At 03:37 PM 2/9/2004, you wrote:
> >Wolfgang,
> > The book mentions any number less than 80,000. Gaja did some tests with
> > 79,000 (with 8.1.7.0 on
> >Solaris, I believe) to observe the CBO behavior. There is no "magic"
> >number as such.
> >
> >Regards,
> >- Kirti
> >
>
> Wolfgang Breitling
> Oracle7, 8, 8i, 9i OCP DBA
> Centrex Consulting Corporation
> http://www.centrexcc.com
>
>
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Connor McDonald
Co-author: "Mastering Oracle PL/SQL - Practical Solutions" - available now
web: http://www.oracledba.co.uk
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Received on Mon Feb 09 2004 - 21:28:05 CST
