删除此视图时：

drop view employees;

我收到以下错误消息：

ERROR:  cannot drop view employees because other objects depend on it
DETAIL:  view telephone_number_collection depends on view employees
view email_collection depends on view employees
policy employee_rights_select_only_own_person_address on table person_addresses depends on view employees
policy employee_rights_select_only_own_person_email on table person_emails depends on view employees
policy employee_rights_select_only_own_person_telnumber on table person_telephone_numbers depends on view employees
HINT:  Use DROP ... CASCADE to drop the dependent objects too.
SQL state: 2BP01

删除视图email\u collection和telephone\u number\u collection可以避免错误的第一部分。但我不明白第二部分：

policy employee_rights_select_only_own_person_address on table person_addresses depends on view employees
policy employee_rights_select_only_own_person_email on table person_emails depends on view employees
policy employee_rights_select_only_own_person_telnumber on table person_telephone_numbers depends on view employees

我在所描述的3个表中找不到3个策略。有人能帮我理解错误信息，分别在pgadmin中查找策略，检查我是否可以使用drop。。。在不破坏重要内容的情况下手动级联或删除策略？
edit：实际的问题是，我绑定了一个函数来替换返回类型发生了变化的函数。但那是不可能的。如果返回类型更改，则必须先删除函数，然后再创建它。

drop FUNCTION public.get_employees;

但是由于依赖于视图，所以不可能放弃函数。

ERROR:  cannot drop function get_employees() because other objects depend on it
DETAIL:  view employees depends on function get_employees()
view telephone_number_collection depends on view employees
view email_collection depends on view employees
policy employee_rights_select_only_own_person_address on table person_addresses depends on view employees
policy employee_rights_select_only_own_person_email on table person_emails depends on view employees
policy employee_rights_select_only_own_person_telnumber on table person_telephone_numbers depends on view employees
HINT:  Use DROP ... CASCADE to drop the dependent objects too.
SQL state: 2BP01

所以我问了第一个问题。我只想暂时删除所有视图和策略，并在我删除并创建public.get\u employees函数后重新创建它们；