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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2021/02/27 23:02:00 UTC

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

     [ https://issues.apache.org/jira/browse/SPARK-34565?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-34565:
------------------------------------

    Assignee:     (was: Apache Spark)

> 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
>            Priority: Major
>
> 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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