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https://issues.apache.org/jira/browse/SPARK-2695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen updated SPARK-2695:
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Assignee: Michael Armbrust
> Figure out a good way to handle NullType columns.
> -------------------------------------------------
>
> Key: SPARK-2695
> URL: https://issues.apache.org/jira/browse/SPARK-2695
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Yin Huai
> Assignee: Michael Armbrust
> Fix For: 1.5.0
>
>
> For example, if a JSON dataset has a field which only has null values, we
> will get NullType when we turn that dataset as a SchemaRDD. We need to think
> about what is the good way to deal with NullType columns.
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