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  1. Hive
  2. HIVE-11627

Reduce the number of accesses to hashmaps in PPD

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 1.3.0, 2.0.0
    • 1.3.0, 2.0.0
    • Logical Optimizer
    • None

    Description

      We retrieve the ExprInfo from the hashmap each time we want to change any of its properties. Instead, the number of calls to the hashmap could be drastically reduced by retrieving the ExprInfo once, and changing all its properties.

      Attachments

        1. HIVE-11627.01.patch
          14 kB
          jcamachorodriguez
        2. HIVE-11627.patch
          14 kB
          jcamachorodriguez

        Issue Links

          is part of

          Task - A task that needs to be done. HIVE-11315 Compilation performance issues for large queries

          • Major - Major loss of function.
          • Resolved
          relates to

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-11638 ExprNodeDesc hashMap accidentally degrades into O(N) instead of O(1)

          • Major - Major loss of function.
          • Closed

          Activity

            People

              jcamacho Jesús Camacho Rodríguez
              jcamacho Jesús Camacho Rodríguez
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              Dates

                Created:
                Updated:
                Resolved: