AngersZhuuuu edited a comment on pull request #30144:
URL: https://github.com/apache/spark/pull/30144#issuecomment-716442277
> postgres=# select a, b, c, sum(v) from t group by rollup(a, b), cube(b,
c), grouping sets(a, c);
FYI @maropu, for this sql, we should support
```
SELECT A, B, SUM(C) FROM TBL GROUP BY A, grouping sets(A, B)
```
first, I will rase a new jira for this.
How about support mixed CUBE/ROLLUP first then implement GROUPING SETS in
that pr.
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