Если вы исправите group by
, мне интересно, решит ли это проблему:
select b.bellhop_full_name,
count(*) as Moves,
avg(o.order_review_score) as Order_Rating
from _gospel.bellhop_order_relationship b join
_gospel.orders o
on o.order_id = b.order_id join
_gospel.incidents i
on o.order_id = i.order_id
group by b.bellhop_full_name;