[jira] [Commented] (SPARK-12745) Limit is not supported inside Set Operation

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

    [ https://issues.apache.org/jira/browse/SPARK-12745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15091314#comment-15091314 ] 

Apache Spark commented on SPARK-12745:
--------------------------------------

User 'gatorsmile' has created a pull request for this issue:
https://github.com/apache/spark/pull/10689

> Limit is not supported inside Set Operation
> -------------------------------------------
>
>                 Key: SPARK-12745
>                 URL: https://issues.apache.org/jira/browse/SPARK-12745
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 1.6.0
>            Reporter: Xiao Li
>
> The current SQLContext allows the following query, which is copied from a test case in SQLQuerySuite:
> {code}
>      checkAnswer(sql(
>        """
>          |select key from ((select * from testData limit 1)
>          |  union all (select * from testData limit 1)) x limit 1
>        """.stripMargin),
>        Row(1)
>      )
> {code}
> However, it is rejected in the Hive parser. 



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