Vikram Dixit K created HIVE-6736:
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Summary: We can do order independent bucket trait propagation
Key: HIVE-6736
URL: https://issues.apache.org/jira/browse/HIVE-6736
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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