Re: _index_join_enabled in 9i

It disables index hash joins (hashing a scan of two indexes on a single table to generate a result without visiting the table). If you are upgrading, you weren't using that path before, so won't miss it if you switch it off now.

Regards

Jonathan Lewis
http://www.jlcomp.demon.co.uk

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• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Wednesday, December 03, 2003 8:54 PM

>
> We have discovered an... opportunity... and Oracle's suggestion is to set
> _index_join_enabled = false
>
> Anyone seen any detrimental effects of setting this parameter to false in
> 9.2.0.#?
>
> April Wells
> Oracle DBA/Oracle Apps DBA
> Corporate Systems
> Amarillo Texas
> /\
> / \
> / \
> \ /
> \/
> >\<
> \
> >\<
> \
> Few people really enjoy the simple pleasure of flying a kite
> Adam Wells age 11
>

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