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Message Posted: Thu, 11 Jan 2001 @ 21:18:54 GMT


     
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Subj:   Re: EXPLAIN cost estimates
 
From:   Jim Downey

The fact that it says no confidence is indication that statistics have not been collected. I look through my explains for this text and low confidence to see if there is anything I can do to to increase the confidence by changing the way I wrote the query. When it says high confidence then it used statistics.



     
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