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https://issues.apache.org/jira/browse/PHOENIX-996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Taylor resolved PHOENIX-996.
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Resolution: Won't Fix
> Support for Group concat function in phoenix
> --------------------------------------------
>
> Key: PHOENIX-996
> URL: https://issues.apache.org/jira/browse/PHOENIX-996
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Nitin Kumar
> Priority: Blocker
>
> Hi James,
> Its really great to see the promptness by phoenix team for resolving certain
> critical issues/enhancement(particularly all my issues resolved till date).
> ex:- https://issues.apache.org/jira/browse/PHOENIX-136
> I am again stuck with one use case(and we are in advanced stage of our
> product which uses phoenix for aggregation etc)
> Use case: Support for group concat
> ex(SQL query):-
> SELECT student_name,
> GROUP_CONCAT(DISTINCT test_score
> ORDER BY test_score DESC SEPARATOR ' ')
> FROM student
> GROUP BY student_name;
> Is it possible to achieve this in phoenix?
> Note:- This is supported in Hive. They have something called as collect_set()
> Regards,
> Nitin
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