Github user HeartSaVioR commented on the issue:
https://github.com/apache/storm/pull/1635
> SELECT GRPID, COUNT(*) AS CNT, MAX(AGE) AS MAX_AGE, MIN(AGE) AS MIN_AGE,
AVG(AGE) AS AVG_AGE, MAX(AGE) - MIN(AGE) AS DIFF FROM FOO GROUP BY GRPID
Below link is a Trident logical/physical plan for above query.
https://docs.google.com/spreadsheets/d/1tTyIxbNafvVw0tQjWjiBQCKDCPbbnfbT5JZ7F5JEBNE/edit?usp=sharing
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