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  1. Hive
  2. HIVE-20069

Fix reoptimization in case of DPP and Semijoin optimization

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 3.2.0, 4.0.0-alpha-1
    • Query Planning
    • None

    Description

      reported by t3rmin4t0r

      In case dynamic partition pruning; the operator statistics became partial; to only reflect the actually scanned partitions; but they are being used as an information about the "full" table...which leads to the exchange of the 2 tables being joined...which is really unfortunate...

      Attachments

        1. HIVE-20069.01.patch
          14 kB
          Zoltan Haindrich
        2. HIVE-20069.02.patch
          38 kB
          Zoltan Haindrich
        3. HIVE-20069.02.patch
          38 kB
          Zoltan Haindrich
        4. HIVE-20069.02.patch
          38 kB
          Zoltan Haindrich
        5. HIVE-20069.02.patch
          38 kB
          Zoltan Haindrich

        Issue Links

          blocks

          Bug - A problem which impairs or prevents the functions of the product. HIVE-20087 Fix reoptimization for semijoin reduction cases

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              kgyrtkirk Zoltan Haindrich
              kgyrtkirk Zoltan Haindrich
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              Dates

                Created:
                Updated:
                Resolved: