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Re: Why CBO doesn't choose the low cost plan

Jared Still

2006-07-19

Replies:

On 7/19/06, eagle fan <eagle.f@gmail.com> wrote:
hi:

My oracle version is 9205 and optimizer_features_enable is set to 9.2.0.

We have a query choose a bad plan.

...
What do you think?


I think it's a bug.

Check MetaLink.

A possible candidate is Bug 4112254 - CBO may not choose best index for single table access with unpeeked bind/function

I just searched MetaLink on CBO Bug 9.2.0.5

You should probably check there.

--
Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist
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