此方法旨在用于用户没有全部元数据的情况，包括关系两端的静态类型信息。
This method is intended to be used in scenarios where the user does not have full metadata, including the static type information for both ends of the relationship.
在静态语言中，优化器可以根据类型信息来进行决策。
In a static language, optimizers can exploit the type information to make decisions.
静态类型还可以提供更多的信息，使得编译器更容易进行优化，从而提高性能。
Static typing can also provide more information that a compiler can use to make earlier optimizations, improving performance.
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