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From "Ashish Thusoo (JIRA)" <j...@apache.org>
Subject [jira] Created: (HIVE-1398) Support union all without an outer select *
Date Wed, 09 Jun 2010 22:13:13 GMT
Support union all without an outer select *
-------------------------------------------

                 Key: HIVE-1398
                 URL: https://issues.apache.org/jira/browse/HIVE-1398
             Project: Hadoop Hive
          Issue Type: Improvement
          Components: Query Processor
            Reporter: Ashish Thusoo
            Assignee: Ashish Thusoo


In hive for union alls the query has to be wrapped in an sub query as shown below:

select * from 
(select c1 from t1
  union all
  select c2 from t2);

This JIRA proposes to fix that to support

select c1 from t1
union all
select c2 from t2;


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