[GitHub] [calcite] DonnyZone opened a new pull request #1258: [CALCITE-3088] Multi-groupsets query failed due to data type preservation check

[GitBox <gi...@apache.org>]

DonnyZone opened a new pull request #1258: [CALCITE-3088] Multi-groupsets query failed due to data type preservation check 
URL: https://github.com/apache/calcite/pull/1258
 
 
   The issue is described in [CALCITE-3088](https://issues.apache.org/jira/browse/CALCITE-3088).
   This kind of query is supported, for example, the case in **agg.iq**
   ```
   # ROLLUP on 1 column
   select deptno + 1, count(*) as c
   from emp
   group by rollup(deptno);
   ```
   However, `nullifyType` in `AggregatingSelectScope` only checks the SqlNode itself, we need to take more cases into consideration.

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