[jira] [Created] (HIVE-8089) Ordering is lost when limit is put in outer query

["Laljo John Pullokkaran (JIRA)" <ji...@apache.org>]

Laljo John Pullokkaran created HIVE-8089:
--------------------------------------------

             Summary: Ordering is lost when limit is put in outer query
                 Key: HIVE-8089
                 URL: https://issues.apache.org/jira/browse/HIVE-8089
             Project: Hive
          Issue Type: Bug
            Reporter: Laljo John Pullokkaran


It seems like hive supports order by, limit in sub queries (compiler doesn't complain). However ordering seems to be lost based on where you place the limit.   I haven't debugged the issue.

ex:
select key, c_int from (select key, c_int from (select key, c_int from t1 order by c_int limit 5)t1)t1;
null	NULL
null	NULL
1	1
1	1
1	1

select key, c_int from (select key, c_int from (select key, c_int from t1 order by c_int)t1 limit 5)t1;
1	1
1	1
1	1
null	NULL
null	NULL

select key, c_int from (select key, c_int from (select key, c_int from t1 order by c_int limit 5)t1 limit 5)t1;
1	1
1	1
1	1
null	NULL
null	NULL



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