Hi. I have the idea: hints joined to function. For example instead of
WHERE table1.field1=table2.field2
write:
WHERE specificeq(table1.field1,table2.field2)
and hints add to declaration of specificeq function.
2011/2/23, Robert Haas <robertmhaas@gmail.com>:
> 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.
>
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> Robert Haas
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pasman
