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https://issues.apache.org/jira/browse/SPARK-52449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18004437#comment-18004437
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Yihong He commented on SPARK-52449:
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I would like to try doing this
> Make datatypes for Expression.Literal.Map/Expression.Literal.Array optional
> ---------------------------------------------------------------------------
>
> Key: SPARK-52449
> URL: https://issues.apache.org/jira/browse/SPARK-52449
> Project: Spark
> Issue Type: Task
> Components: Connect, SQL
> Affects Versions: 4.1.0
> Reporter: Herman van Hövell
> Priority: Major
>
> The data type for the Expression.Literal.Map/Expression.Literal.Array
> literals can be inferred from their children. Lets allow for this in the
> protocol.
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