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  1. Spark
  2. SPARK-22692 Reduce the number of generated mutable states
  3. SPARK-22746

Avoid the generation of useless mutable states by SortMergeJoin

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    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.3.0
    • 2.3.0
    • SQL
    • None

    Description

      Generated code in SortMergeJoin uses global mutable variables to extend lifetime of variables in a nested loop. The generated code can use local variables instead of global mutable variables.

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            kiszk Kazuaki Ishizaki
            kiszk Kazuaki Ishizaki
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