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  1. Hive
  2. HIVE-15489

Alternatively use table scan stats for HoS

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.2.0
    • 2.3.0
    • Spark, Statistics
    • None

    Description

      For MapJoin in HoS, we should provide an option to only use stats in the TS rather than the populated stats in each of the join branch. This could be pretty conservative but more reliable.

      Attachments

        1. HIVE-15489.1.patch
          9 kB
          Chao Sun
        2. HIVE-15489.2.patch
          9 kB
          Chao Sun
        3. HIVE-15489.3.patch
          9 kB
          Chao Sun
        4. HIVE-15489.6.patch
          10 kB
          Chao Sun
        5. HIVE-15489.7.patch
          24 kB
          Chao Sun
        6. HIVE-15489.wip.patch
          9 kB
          Chao Sun

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              csun Chao Sun
              csun Chao Sun
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              Dates

                Created:
                Updated:
                Resolved: