select car from Car car inner join car.dealerships dealershipwhere dealership in :dealerships
该参数必须是Dealership实例的集合。
如果要使用经销商ID的集合，请使用
select car from Car car inner join car.dealerships dealershipwhere dealership.id in :dealershipIds
请记住，JPQL始终使用实体，映射的属性和关联。永远不要表和列名。
