user_and_questions.sql

select u.display_name
 ,s.amount
 ,u.location
from [bigquery-public-data:stackoverflow.users] u
join (
 select s.owner_user_id,
 count(*) amount
 from [bigquery-public-data:stackoverflow.posts_questions] s 
 group by s.owner_user_id
) s
on s.owner_user_id = u.id
where REGEXP_MATCH(u.location, '(?i)indonesia')
order by s.amount desc
limit 10