What are the positions of players whose average number of points scored by that position is larger than 20?
SELECT POSITION FROM player GROUP BY name HAVING avg(Points)  >=  20
SELECT POSITION FROM player GROUP BY name HAVING avg(Points)  >=  20
[{'Position': 'Prop'}, {'Position': 'Right Wing'}, {'Position': 'Second Row'}, {'Position': 'Second Row'}, {'Position': 'Stand Off'}, {'Position': 'Right Centre'}, {'Position': 'Full Back'}, {'Position': 'Scrum Half'}, {'Position': 'Loose Forward'}, {'Position': 'Hooker'}]