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  1. Hive
  2. HIVE-21780

SetHashGroupByMinReduction should check parent operator number of rows to compute reduction

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 4.0.0-alpha-1
    • Physical Optimizer
    • None

    Description

      Currently it incorrectly checks the number of rows in the Group By operator itself.

      Attachments

        1. HIVE-21780.patch
          2 kB
          jcamachorodriguez
        2. HIVE-21780.01.patch
          957 kB
          jcamachorodriguez

        Issue Links

        relates to

        Improvement - An improvement or enhancement to an existing feature or task. HIVE-21399 Adjust hive.map.aggr.hash.min.reduction statically depending on group by statistics

        • Major - Major loss of function.
        • Closed

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            jcamacho Jesús Camacho Rodríguez Assign to me
            jcamacho Jesús Camacho Rodríguez
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            Dates

              Created:
              Updated:
              Resolved:

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