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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2022/07/20 12:44:00 UTC
[jira] [Assigned] (SPARK-39825) Fix PushDownLeftSemiAntiJoin push through project
[ https://issues.apache.org/jira/browse/SPARK-39825?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-39825:
------------------------------------
Assignee: Apache Spark
> Fix PushDownLeftSemiAntiJoin push through project
> -------------------------------------------------
>
> Key: SPARK-39825
> URL: https://issues.apache.org/jira/browse/SPARK-39825
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.4.0
> Reporter: XiDuo You
> Assignee: Apache Spark
> Priority: Major
>
> Push LeftSemi/LeftAnti through project is not always effective
> 1. project is used to do column pruning, so it conflicts with ColumnPruning
> 2. if the project contains complex expression and join condition reference it, it can be regression since the complex expression will be evaluated more than once
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