Query with grouping columns but no aggregate ignores column aliases

If a query has grouping columns but no aggregates the aliases are ignored. To reproduce start the quick start batch and run the following query:

select AtBatting as foo, baseOnBalls as bar from baseballStats 
group by AtBatting, baseOnBalls
limit 10

Result uses AtBatting and baseOnBalls instead of foo, bar

If an aggregate is added then the aliases are correct:

select AtBatting as foo, baseOnBalls as bar , count(*) from baseballStats 
group by AtBatting, baseOnBalls
limit 10

[SandishKumarHN]

working on it

[Jackie-Jiang]

Fixed by #7678