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Message Posted: Sat, 09 Nov 2013 @ 09:44:21 GMT


     
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Subj:   Re: Statistics on multi column UPI
 
From:   Vinay Bagare

For UPI, I would think random sampling should give optimizer almost accurate information and prepare best cost based plan.

Short answer, I would not collect stats on UPI (especially in your case as all columns are part of SQL - joining or residual condition).


Best,

Vinay Bagare



     
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