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  1. Hive
  2. HIVE-5270

Enable hash joins using tez

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: tez-branch
    • Fix Version/s: 0.13.0
    • Component/s: Tez
    • Labels:
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      Description

      Since hash join involves replicating a hash table to all the map tasks, an equivalent operation needs to be performed in tez. In the tez world, such an operation is done via a broadcast edge (TEZ-410). We need to rework the planning and execution phases within hive for this.

        Attachments

        1. HIVE-5270.4.patch
          44 kB
          Gunther Hagleitner
        2. HIVE-5270.2.patch
          41 kB
          Gunther Hagleitner
        3. HIVE-5270.1.patch
          51 kB
          Gunther Hagleitner
        4. BroadCastJoinsHiveOnTez.pdf
          32 kB
          Vikram Dixit K

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              • Assignee:
                vikram.dixit Vikram Dixit K
                Reporter:
                vikram.dixit Vikram Dixit K
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                • Created:
                  Updated:
                  Resolved: