[jira] [Created] (SPARK-12687) Support from clause surrounded by `()`

["Davies Liu (JIRA)" <ji...@apache.org>]

Davies Liu created SPARK-12687:
----------------------------------

             Summary: Support from clause surrounded by `()`
                 Key: SPARK-12687
                 URL: https://issues.apache.org/jira/browse/SPARK-12687
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
            Reporter: Davies Liu


This query can't be parsed under Hive parser:

{code}
(select * from t1) union (select * from t2)
{code}

also this one:

{code}
select * from ((select * from t1) union (select * from t2)) t
{code}



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