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https://issues.apache.org/jira/browse/SPARK-2415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14055983#comment-14055983
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Takuya Ueshin commented on SPARK-2415:
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PRed: https://github.com/apache/spark/pull/1339
> RowWriteSupport should handle empty ArrayType correctly.
> --------------------------------------------------------
>
> Key: SPARK-2415
> URL: https://issues.apache.org/jira/browse/SPARK-2415
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Takuya Ueshin
>
> {{RowWriteSupport}} doesn't write empty {{ArrayType}} value, so the read
> value becomes {{null}}.
> It should write empty {{ArrayType}} value as it is.
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