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https://issues.apache.org/jira/browse/SPARK-2665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14072977#comment-14072977
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Apache Spark commented on SPARK-2665:
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User 'chenghao-intel' has created a pull request for this issue:
https://github.com/apache/spark/pull/1570
> Add EqualNS support for HiveQL
> ------------------------------
>
> Key: SPARK-2665
> URL: https://issues.apache.org/jira/browse/SPARK-2665
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Reporter: Cheng Hao
>
> Hive Supports the operator "<=>", which returns same result with EQUAL(=)
> operator for non-null operands, but returns TRUE if both are NULL, FALSE if
> one of the them is NULL.
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