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Posted to issues@spark.apache.org by "Gengliang Wang (Jira)" <ji...@apache.org> on 2022/03/01 01:41:00 UTC

[jira] [Assigned] (SPARK-38347) Nullability propagation in transformUpWithNewOutput

     [ https://issues.apache.org/jira/browse/SPARK-38347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gengliang Wang reassigned SPARK-38347:
--------------------------------------

    Assignee: Yingyi Bu

> Nullability propagation in transformUpWithNewOutput
> ---------------------------------------------------
>
>                 Key: SPARK-38347
>                 URL: https://issues.apache.org/jira/browse/SPARK-38347
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 3.2.0
>            Reporter: Yingyi Bu
>            Assignee: Yingyi Bu
>            Priority: Major
>
> The nullability of a replaced attribute should be `a.nullable` instead of `b.nullable`:
> https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/QueryPlan.scala#L357
> The scenario is a left outer join where the RHS attributes are replaced bottom up.



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