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Message Posted: Sun, 21 Apr 2002 @ 18:41:34 GMT


     
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Subj:   Re: Nulls in a composite Primary Key deployed as a Primary Index
 
From:   Todd A. Walter

In V2R4.0 and later, the optimizer will recognize the case of the nullable join column and will automatically insert the IS NOT NULL condition as the source is being redistributed (since it knows that the NULLS will not participate in the join anyway). This eliminates this case of skew automatically.



     
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