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Posted to issues@spark.apache.org by "Tanel Kiis (Jira)" <ji...@apache.org> on 2021/02/27 22:45:00 UTC

[jira] [Created] (SPARK-34565) Collapse Window nodes with Project between them

Tanel Kiis created SPARK-34565:
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             Summary: Collapse Window nodes with Project between them
                 Key: SPARK-34565
                 URL: https://issues.apache.org/jira/browse/SPARK-34565
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 3.2.0
            Reporter: Tanel Kiis


The CollapseWindow optimizer rule can be imroved to also collapse Window nodes, that have a Project between them. This sort of Window - Project - Window chains will happen when chaining the dataframe.withColumn calls.



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