anton5798 commented on PR #45133:
URL: https://github.com/apache/spark/pull/45133#issuecomment-1965406873
UPD: the current proposed approach actually looks incorrect to me. It fails
for queries like (adds extra group by condition, and thus returns 2 rows):
```
SELECT
sum(salary),
sum(salary) FILTER (WHERE EXISTS (SELECT 1
FROM dept
WHERE emp.dept_id = dept.dept_id))
FROM emp;
```
Will work on fixing this.
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