How many posts by Matt Parker have more than 4 votes?
more than 4 votes refer to PostId > 4; DisplayName = 'Matt Parker';
SELECT COUNT(T1.Id) FROM users AS T1 INNER JOIN postHistory AS T2 ON T1.Id = T2.UserId INNER JOIN posts AS T3 ON T2.PostId = T3.Id INNER JOIN votes AS T4 ON T4.PostId = T3.Id WHERE T1.DisplayName = 'Matt Parker' GROUP BY T2.PostId, T4.Id HAVING COUNT(T4.Id) > 4