[jira] [Resolved] (SPARK-24734) Fix containsNull of Concat for array type.

["Wenchen Fan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-24734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan resolved SPARK-24734.
---------------------------------
       Resolution: Fixed
    Fix Version/s: 2.4.0

Issue resolved by pull request 21704
[https://github.com/apache/spark/pull/21704]

> Fix containsNull of Concat for array type.
> ------------------------------------------
>
>                 Key: SPARK-24734
>                 URL: https://issues.apache.org/jira/browse/SPARK-24734
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: Takuya Ueshin
>            Assignee: Takuya Ueshin
>            Priority: Major
>             Fix For: 2.4.0
>
>
> Currently {{Concat}} for array type uses the data type of the first child as its own data type, but the children might include an array containing nulls.
> We should aware the nullabilities of all children.



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