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  1. Spark
  2. SPARK-26316

Because of the perf degradation in TPC-DS, we currently partial revert SPARK-21052:Add hash map metrics to join,

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.3.0, 2.3.1, 2.3.2, 2.4.0
    • 2.3.3, 2.4.1, 3.0.0
    • SQL
    • None

    Description

      The code of  L486 and L487 in  SPARK-21052 cause performance degradation in spark2.3. The result of  all queries in TPC-DS with 1TB is in TPC-DS result

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            Jk_Self Ke Jia
            Jk_Self Ke Jia
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              Updated:
              Resolved:

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