User authorities in ODPS (Open Data Processing Service).
add user {{username}};
grant {{action_list}} on {{object_type}} {{object_name}} to user {{username}};
show grants for {{username}};
create role {{role_name}};
grant {{action_list}} on {{object_type}} {{object_name}} to role {{role_name}};
desc role {{role_name}};
grant {{role_name}} to {{username}};