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From "Takeshi Yamamuro (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-23798) The CreateArray and ConcatArray should return the default array type when no children provided
Date Wed, 02 May 2018 00:13:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-23798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16460329#comment-16460329
] 

Takeshi Yamamuro commented on SPARK-23798:
------------------------------------------

That pr was to make the behaviour along with the hive one.
WDYT [~smilegator] ? 

> The CreateArray and ConcatArray should return the default array type when no children
provided
> ----------------------------------------------------------------------------------------------
>
>                 Key: SPARK-23798
>                 URL: https://issues.apache.org/jira/browse/SPARK-23798
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: Marek Novotny
>            Priority: Minor
>
> The expressions should return ArrayType.defaultConcreteType.



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