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  1. Hive
  2. HIVE-7292 Hive on Spark
  3. HIVE-8412

Make reduce side join work for all join queries [Spark Branch]

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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.1.0
    • Component/s: Spark
    • Labels:

      Description

      Regardless all these join related optimizations such as map join, bucket join, skewed join, etc, reduce side join is the fallback. That means, if a join query wasn't taken care of by any of the optimization, it should work with reduce side join (might in a less optimal fashion).

      It's found that this isn't case at the moment. For instance, auto_sortmerge_join_1.q failed to execute on Spark.

        Attachments

        1. HIVE-8412.1-spark.patch
          89 kB
          Xuefu Zhang

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              • Assignee:
                xuefuz Xuefu Zhang
                Reporter:
                xuefuz Xuefu Zhang
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                • Created:
                  Updated:
                  Resolved: