db.role_permission.createIndex({"role_id": 1, "permission_id": 1}, {unique: true});
db.role_permission.createIndex({"role_id": 1});
db.role_permission.createIndex({"permission_id": 1});
db.role_permission.createIndex({"permission_id": 1, "status": 1});
db.role_permission.createIndex({"create_time": 1});