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Message Posted: Fri, 22 Nov 2002 @ 19:24:19 GMT

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Subj:   Re: More Statistics Questions
From:   Belle, Patrick A


How're you doin'?

I think your observation is quite correct. Unless you reference all components of the index, the optimizer won't choose it. Now if you subject one column of the index to a range constraint and the other to an equality constraint, you may get lucky if the optimizer can reduce the range constraint to a "small number of discrete values".

Pat Belle
Teradata Certified Master

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