On Wed, Feb 16, 2011 at 4:22 PM, Bruce Momjian <bruce@momjian.us> wrote:
> I am not excited about the idea of putting these correlations in
> queries. What would be more intesting would be for analyze to build a
> correlation coeffficent matrix showing how columns are correlated:
>
> a b c
> a 1 .4 0
> b .1 1 -.3
> c .2 .3 1
>
> and those correlations could be used to weigh how the single-column
> statistics should be combined.
If you can make it work, I'll take it... it's (much) easier said than
done, though.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
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