[jira] [Created] (CALCITE-4664) When group by is same as sub-query, grouping sets are missing

["xiejiajun (Jira)" <ji...@apache.org>]

xiejiajun created CALCITE-4664:
----------------------------------

             Summary: When group by is same as sub-query, grouping sets are missing
                 Key: CALCITE-4664
                 URL: https://issues.apache.org/jira/browse/CALCITE-4664
             Project: Calcite
          Issue Type: Bug
          Components: core
            Reporter: xiejiajun


For example:
{code:java}
SELECT
t.ID, t.NAME, count(t.AGE) T_AGE
FROM
(SELECT u.ID, u.NAME, u.AGE
FROM USERS u
GROUP BY u.ID, u.NAME, u.AGE
) t
GROUP BY t.ID, t.NAME, t.AGE
GROUPING SETS(
(t.ID, t.NAME),
(t.ID, t.NAME, t.AGE)
)
{code}
will be
{code}
SELECT u.ID, u.NAME, u.AGE
FROM USERS u
GROUP BY u.ID, u.NAME, u.AGE
{code}
groupings set is missing
 



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