Carter Shanklin created HIVE-16648:
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Summary: Allow select distinct with group by
Key: HIVE-16648
URL: https://issues.apache.org/jira/browse/HIVE-16648
Project: Hive
Issue Type: Sub-task
Reporter: Carter Shanklin
Although there are very few legitimate reasons to have both "select distinct"
and "group by" in the same query, it is still used from time to time and other
systems support it.
Illustrating the issue:
{code}
hive> create table test (c1 integer);
OK
Time taken: 0.073 seconds
hive> select distinct c1 from test group by c1;
FAILED: SemanticException 1:38 SELECT DISTINCT and GROUP BY can not be in the
same query. Error encountered near token 'c1'
{code}
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