[jira] [Commented] (SPARK-16167) RowEncoder should preserve array/map type nullability.

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-16167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15346072#comment-15346072 ] 

Apache Spark commented on SPARK-16167:
--------------------------------------

User 'ueshin' has created a pull request for this issue:
https://github.com/apache/spark/pull/13873

> RowEncoder should preserve array/map type nullability.
> ------------------------------------------------------
>
>                 Key: SPARK-16167
>                 URL: https://issues.apache.org/jira/browse/SPARK-16167
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Takuya Ueshin
>
> Currently {{RowEncoder}} doesn't preserve nullability of {{ArrayType}} or {{MapType}}.
> It returns always {{containsNull = true}} for {{ArrayType}}, {{valueContainsNull = true}} for {{MapType}} and also the nullability of itself is always {{true}}.



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