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  1. Hive
  2. HIVE-20775

Factor cost of each SJ reduction when costing a follow-up reduction

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Details

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

    Description

      Currently, while costing the SJ in a plan, the stats of the a TS that is reduced by a SJ are not adjusted after we have decided to keep a SJ in the tree. Ideally, we could adjust the stats to take into account decisions that have already been made.

      Attachments

        1. HIVE-20775.01.patch
          2.78 MB
          jcamachorodriguez
        2. HIVE-20775.02.patch
          2.80 MB
          jcamachorodriguez
        3. HIVE-20775.03.patch
          2.79 MB
          jcamachorodriguez
        4. HIVE-20775.04.patch
          2.80 MB
          jcamachorodriguez
        5. HIVE-20775.05.patch
          2.84 MB
          jcamachorodriguez
        6. HIVE-20775.06.patch
          2.84 MB
          jcamachorodriguez
        7. HIVE-20775.patch
          41 kB
          jcamachorodriguez

        Issue Links

        is related to

        Improvement - An improvement or enhancement to an existing feature or task. HIVE-20957 Scale down stats for plan when DPP/SJ is applied

        • Major - Major loss of function.
        • Open
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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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