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  1. Spark
  2. SPARK-24871

Refactor Concat and MapConcat to avoid creating concatenator object for each row.

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.4.0
    • Fix Version/s: 2.4.0
    • Component/s: SQL
    • Labels:
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      Description

      Refactor Concat and MapConcat to:

      • avoid creating concatenator object for each row.
      • make Concat handle containsNull properly.
      • make Concat shortcut if null child is found.

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            • Assignee:
              ueshin Takuya Ueshin
              Reporter:
              ueshin Takuya Ueshin
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