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  1. Spark
  2. SPARK-41669

Speed up CollapseProject for wide tables

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.4.0
    • 3.4.0
    • SQL
    • None

    Description

      Currently, CollapseProject can be very slow when the project list contains a large number of expressions. We can speed this up by doing early pruning in `canCollapseExpressions`.

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            allisonwang-db Allison Wang
            allisonwang-db Allison Wang
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