在非受管模式下，应用程序负责服务质量。
In non-managed mode, the application is responsible for quality of service.
Auto—在Automatic模式下，应用规则以判断是否需要创建片段级统计，否则默认为表级别分布。
AUTO - in Automatic mode, apply rules to determine if Fragment level Statistics should be created, otherwise default to table level distributions.
在应用程序端，可以接受绑定模式的应用程序，并在客户端模式下运行而不做任何更改，在许多情况下，这就是确切的实际做法。
On the application side, it is possible to take a bindings mode application and run it in client mode without any changes, and in many cases, this is exactly what happened.
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