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From "Vikram Dixit K (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-6737) We can do order independent bucket trait propagation
Date Tue, 25 Mar 2014 00:01:46 GMT
Vikram Dixit K created HIVE-6737:
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             Summary: We can do order independent bucket trait propagation
                 Key: HIVE-6737
                 URL: https://issues.apache.org/jira/browse/HIVE-6737
             Project: Hive
          Issue Type: Improvement
          Components: Tez
    Affects Versions: 0.14.0
            Reporter: Vikram Dixit K


>From HIVE-6447

1. You can have the case where
parentOfParent bucketCols is a,b
and parent bucketCols is b,a
i.e. bucketing trait doesn't depend on order.

2. You can also have the case
parentOfParent trait is (a)
and join is on (a,b) You can avoid shuffle in this case.



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