Re: How to analyze a odd column distribution
- From: Wolfgang Breitling <breitliw@xxxxxxxxxxxxx>
- To: aleon68@xxxxxxxxx
- Date: Wed, 19 Jan 2005 12:08:33 -0700
If you have a histogram then the optimizer should correctly recognize
the historic outliers.
How did you create the histogram, what does dba_histograms contain for
that column and what are the problem queries like?
BTW I see a Y3K problem looming.
Alfonso León wrote:
> Hello everyone:
>
> Now there
> are about 5 million records and half of them are historic so there are
> 2.5 million records with 31-dec-2999 and it is confusing the
> optimizer.
>
--
Regards
Wolfgang Breitling
Centrex Consulting Corporation
www.centrexcc.com
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