Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: spark-branch
    • Fix Version/s: 1.1.0
    • Component/s: Spark

      Description

      Currently the big table selection in a mapjoin is based on stats.

      We should also enable the big-table selection based on hints. See class MapJoinProcessor. This is a logical-optimizer class, so we should be able to re-use this without too many changes to hook up with SparkMapJoinResolver.

        Attachments

        1. HIVE-8911.1-spark.patch
          583 kB
          Chao Sun
        2. HIVE-8911.2-spark.patch
          597 kB
          Chao Sun
        3. HIVE-8911.3-spark.patch
          600 kB
          Chao Sun
        4. HIVE-8911.4-spark.patch
          605 kB
          Chao Sun
        5. HIVE-8911.5-spark.patch
          605 kB
          Chao Sun
        6. HIVE-8911.6-spark.patch
          601 kB
          Chao Sun

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              • Assignee:
                csun Chao Sun
                Reporter:
                szehon Szehon Ho
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                Dates

                • Created:
                  Updated:
                  Resolved: