Hive
  1. Hive
  2. HIVE-6737

We can do order independent bucket trait propagation

    Details

    • Type: Improvement Improvement
    • Status: Open
    • Priority: Major Major
    • Resolution: Unresolved
    • Affects Version/s: 0.14.0
    • Fix Version/s: None
    • Component/s: Tez
    • Labels:
      None

      Description

      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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          People

          • Assignee:
            Unassigned
            Reporter:
            Vikram Dixit K
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            Dates

            • Created:
              Updated:

              Development