I am trying to create a complex id for my model which combines a custom string field and an @autoincrement field. Here is what I have tried.

model Order {
  orderNo           Int            @unique @default(autoincrement())
  prefix            String         @default("SMO-SP-") // generated based on order source and shipping method
  orderType         OrderType      @default(CUSTOM)

@@id(name: "id", [prefix, orderNo])
}

model OrderItem {
  id        Int      @id @default(autoincrement())
  orderId   String
  order     Order    @relation(fields: [orderId], references: [id])
  quantity  Int
}

I expected the named id field would be used as a reference but throws the error

Error validating: The argument `references` must refer only to existing fields in the related model `Order`. The following fields do not exist in the related model: id

I cant seem to find a solution in the prisma documentation.