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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