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Message Posted: Wed, 27 Dec 2006 @ 11:09:20 GMT
<-- Anonymously Posted: Tuesday, December 26, 2006 22:19 -->
I have two large tables A and B, a1and a2 are A's PI column, b1 and b2 are B's columns(not PI).
When I execute the following query, I meet a high skewness on B's columns b1 and b2 redistribution.
Select * from large_tableA A Inner join large_tableB B On A.a1 = B.b1 And A.a2 = B.b2
Could you tell me how to prevent high skewness for this case?
Thanks for your help.
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