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RE: Bind variable peeking and Dynamic sampling

From: Christian Antognini <Christian.Antognini_at_trivadis.com>
Date: Tue, 8 May 2007 21:12:17 +0200
Message-ID: <F2C9CCA71510B442AF71446CAE8AEBAF01AA51@MSXVS04.trivadis.com>


Hi Brandon

> I've filed enhancement request 6030306 to add a hint or some other
> method of forcing Oracle to always hard-parse and bind-peek for
> certain queries. If any of you agree this would be a good
> enhancement, please submit an enhancement request of your own
> and reference the above ER number and if enough of us ask for it,
> hopefully they'll add it soon.

FWIW a new plan stability feature that will be introduced in 11g should solve such problems. Sorry, I cannot provide more details because of NDA. More generally, IMHO, no hints should be provided for such problems. The query optimizer should be able to handle them.

Cheers,
Chris

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Received on Tue May 08 2007 - 14:12:17 CDT

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