Which engineer has visited the most times? Show the engineer id, first name and last name.
SELECT T1.engineer_id ,  T1.first_name ,  T1.last_name FROM Maintenance_Engineers AS T1 JOIN Engineer_Visits AS T2 GROUP BY T1.engineer_id ORDER BY count(*) DESC LIMIT 1
SELECT T1.engineer_id ,  T1.first_name ,  T1.last_name FROM Maintenance_Engineers AS T1 JOIN Engineer_Visits AS T2 GROUP BY T1.engineer_id ORDER BY count(*) DESC LIMIT 1
[{'engineer_id': 1, 'first_name': 'Etha', 'last_name': 'Reinger'}]