我想指定表/模型名称，而不是QuerySet模型中的关系。我链接到的关系是多表继承模型。
当我使用if (isEmptyPayload(payload)) {
if (ann == null || ann.required()) {
String paramName = getParameterName(parameter);
BindingResult bindingResult = new BeanPropertyBindingResult(payload, paramName);
bindingResult.addError(new ObjectError(paramName, "Payload value must not be empty"));
throw new MethodArgumentNotValidException(message, parameter, bindingResult);
}
并使用select_for_update参数提供关系时，仅“选择要更新的父表”。
考虑这段代码：
of在这里，
order = Order.objects.filter(uuid=order_uuid).prefetch_related(
Prefetch(
lookup='items',
queryset=items
)
).select_related('outlet').select_related('user').select_related('outlet__group') \
.select_for_update(of=('self', 'outlet'))
是由
outlet
outlet = models.ForeignKey(Outlet, on_delete=models.PROTECT, related_name="orders")和Order模型都是Outlet和Transaction模型（位于另一个Django应用程序中）的子模型
通过记录PSQL，这是正在执行的查询：
Cashless（忽略SELECT
"payment_gateway_transaction"."uuid",
"payment_gateway_transaction"."ref_number",
"payment_gateway_transaction"."shop_id",
"payment_gateway_transaction"."user_id",
"payment_gateway_transaction"."timestamp",
"payment_gateway_transaction"."amount",
"payment_gateway_transaction"."payment_method",
"payment_gateway_transaction"."transaction_status",
"payment_gateway_transaction"."service",
"cashless_order"."transaction_ptr_id", "cashless_order"."token",
"cashless_order"."outlet_id", "cashless_order"."order_status",
"cashless_order"."order_start_time", "cashless_order"."order_end_time",
"cashless_order"."order_collect_time", "cashless_order"."order_review",
"cashless_order"."order_ratings", "authentication_user"."id",
"authentication_user"."password", "authentication_user"."last_login",
"authentication_user"."is_superuser", "authentication_user"."email",
"authentication_user"."student_id", "authentication_user"."first_name",
"authentication_user"."last_name", "authentication_user"."date_joined",
"authentication_user"."ip_address", "authentication_user"."mac_address",
"authentication_user"."location", "authentication_user"."phone_number",
"authentication_user"."total_spent", "authentication_user"."is_banned",
"authentication_user"."needs_student_id",
"authentication_user"."generated_at", "authentication_user"."verify_token",
"authentication_user"."is_active", "payment_gateway_shop"."uuid",
"payment_gateway_shop"."name", "payment_gateway_shop"."location_id",
"payment_gateway_shop"."location_coords",
"payment_gateway_shop"."tax_applicable",
"payment_gateway_shop"."percentage_tax",
"payment_gateway_shop"."gst_number", "payment_gateway_shop"."open",
"payment_gateway_shop"."active", "payment_gateway_shop"."group_id",
"cashless_outlet"."shop_ptr_id", "cashless_outlet"."start_time",
"cashless_outlet"."end_time", "cashless_outlet"."break_start_time",
"cashless_outlet"."break_end_time", "cashless_outlet"."items_limit",
"cashless_outlet"."image", "cashless_outlet"."description",
"cashless_outlet"."on_cashless", "cashless_outlet"."ratings",
"cashless_outlet"."latest_token", "auth_group"."id", "auth_group"."name"
FROM "cashless_order" INNER JOIN "payment_gateway_transaction" ON
("cashless_order"."transaction_ptr_id" =
"payment_gateway_transaction"."uuid") INNER JOIN "authentication_user" ON
("payment_gateway_transaction"."user_id" = "authentication_user"."id")
INNER JOIN "cashless_outlet" ON ("cashless_order"."outlet_id" =
"cashless_outlet"."shop_ptr_id") INNER JOIN "payment_gateway_shop" ON
("cashless_outlet"."shop_ptr_id" = "payment_gateway_shop"."uuid") INNER
JOIN "auth_group" ON ("payment_gateway_shop"."group_id" =
"auth_group"."id") WHERE "cashless_order"."transaction_ptr_id" = '6e413b2e-
8f07-4452-8cd2-5bc186e7ffcb'::uuid FOR UPDATE OF
"payment_gateway_transaction", "payment_gateway_shop"
表以及UUID和预取。它们按预期方式工作。）
在查询中可以看到，authentication_user和payment_gateway_transaction是锁定用于更新的表。实际上，我需要子模型（我想要锁定的payment_gateway_shop和Order子模型）。
除了未指定Outlet并在Python中重构代码外，还有其他方法可以用来指定特定表吗？这是针对Django的吗？
感谢您的帮助。