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

["Xiao Li (JIRA)" <ji...@apache.org>]

Xiao Li created SPARK-12745:
-------------------------------

             Summary: 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 allow 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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