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  1. Hive
  2. HIVE-12899 Bring query optimization time down
  3. HIVE-13805

Extend HiveSortLimitPullUpConstantsRule to pull up constants even when SortLimit is the root of the plan

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Details

    • Sub-task
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 2.1.0
    • None
    • CBO
    • None

    Description

      Follow-up of HIVE-13068.

      Limitation in the original HiveSortLimitPullUpConstantsRule rule.

      Currently Calcite rule does not pull-up constants when the Sort/Limit operator is on top of the operator tree, as this was causing Hive limit related optimizations to not kick in.

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          relates to

          Sub-task - The sub-task of the issue HIVE-13068 Disable Hive ConstantPropagate optimizer when CBO has optimized the plan II

          • Major - Major loss of function.
          • Closed

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              rusanu Remus Rusanu
              jcamacho Jesús Camacho Rodríguez
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              Dates

                Created:
                Updated: