gaoyajun02 opened a new pull request #33574:
URL: https://github.com/apache/spark/pull/33574
### What changes were proposed in this pull request?
Currently, references to grouping sets are reported as errors after
aggregated expressions, e.g.
```
SELECT count(name) c, name
FROM VALUES ('Alice'), ('Bob') people(name)
GROUP BY name GROUPING SETS(name);
```
Error in query: expression 'people.`name`' is neither present in the group
by, nor is it an aggregate function. Add to group by or wrap in first() (or
first_value) if you don't care which value you get.;;
### Why are the changes needed?
Fix the map anonymous function in the constructAggregateExprs function does
not use underscores to avoid
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Unit tests.
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