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Message Posted: Fri, 26 Apr 2002 @ 11:23:11 GMT

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Subj:   Re: Explanation Required Please!
From:   Ulrich Arndt

You did not specify a primary index in the first create statement. By default Teradata uses the first columns - area_code - which is not a good choice as I expect and will result in many hash synonyms. In the second Statement you define a better Primary Index with less hash synonyms -> better performance.


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