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Posted to issues@spark.apache.org by "Allison Wang (Jira)" <ji...@apache.org> on 2022/12/21 20:25:00 UTC

[jira] [Created] (SPARK-41669) Speed up CollapseProject for wide tables

Allison Wang created SPARK-41669:
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             Summary: Speed up CollapseProject for wide tables
                 Key: SPARK-41669
                 URL: https://issues.apache.org/jira/browse/SPARK-41669
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.4.0
            Reporter: Allison Wang


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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