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Re: optimizer_max_permutations

From: Arul kumar <rakumar_at_mahindrabt.com>
Date: Wed, 18 Oct 2000 15:34:34 +0530
Message-Id: <10653.119610@fatcity.com> 





Hi Marc,



The Parameter OPTIMIZER_MAX_PERMUTATIONS is given in docs. So, u can rely on it.



One thing we have to agree that, by reducing the value from 80000 to any lesser
value we r not allowing Oracle to try for all possible PATHs. ( We may lose some
good EXECUTION PLAN(s).



So, setting (or modifying ) this parameter at INSTANCE level is not suggestable.
Make it for that Session or Query only (using ALTER SESSION ) as specified by
Jay.



bi.
Received on Wed Oct 18 2000 - 05:04:34 CDT












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