查找限定符的可扩展性与复合查询。

Find qualifier extensibility and compound queries.

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在几个查询api中加进了复合查询以改进常用的工具使用习惯。

Compound queries were added to several of the inquiry APIs to facilitate common tooling idioms. In particular.

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该特性可以提高具有复合索引的表的查询性能。

This feature can improve query performance on tables with composite indexes.

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