How many coaches does each club has? List the club id, name and the number of coaches.
SELECT T1.club_id ,  T1.club_name, count(*) FROM club AS T1 JOIN coach AS T2 ON T1.club_id  =  T2.club_id GROUP BY T1.club_id
SELECT T1.club_id ,  T1.club_name, count(*) FROM club AS T1 JOIN coach AS T2 ON T1.club_id  =  T2.club_id GROUP BY T1.club_id
[{'Club_ID': 1, 'Club_name': 'AIK', 'count(*)': 3}, {'Club_ID': 3, 'Club_name': 'Djurgårdens IF', 'count(*)': 2}]