如果两个执行个体只宣告非索引键属性，但名称、型别、顺序和值都相等，则这两个执行个体还是不相等。

Only properties you designate as key properties participate in tests of equality between anonymous type instances, or calculation of hash code values.

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一个全局反向索引仅仅是一个设计，其中创建的映射的键是搜索关键词，且其值是包含属性与搜索关键词的键列表。

A global reverse index is simply a design where you create a map whose key is the search term, and the value is the list of keys containing an attribute with that search term.

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包含作为实体类型属性的外部索引键资料行。

Include foreign key columns as properties on entity types.

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