If both types of query exist on your query object, then your connector should execute a combined query.
如果在查询对象上存在这两种查询，那么连接器应该执行组合查询。
Combined queries should only apply if your connector can execute the combined query as a single operation.
只有在连接器能够将组合查询作为单一操作执行时，才应该应用组合查询。
By analyzing the basic principle to the design of combined query and taking data view and the characters of.
通过分析组合查询的一般性设计原则，结合数据视图和。
应用推荐