MQP Prepares metadata response based on PCODP responses (a, b) and returns it to QFS (c).

mqp基于P CODP响应(a, b)准备元数据响应并将其返回给QFS (c)。

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MQP (metadata Query Planner) - internal component that prepares and executes metadata queries.

MQP (Metadata Query Planner) -准备和执行元数据查询的内部组件。

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