During plan generation for the query, the query optimizer communicates with the non-relational wrapper.
在为查询生成计划的过程中，查询优化器与非关系包装器通信。
For relational nicknames, the wrapper validates the existence of the data source objects and retrieves the column definitions and index information, if any, when the nickname is defined.
对于关系昵称，包装器确认数据源对象是否存在，如果定义了昵称，还将获取列定义和索引信息。
During the registration step for relational nicknames, the wrapper modules try to retrieve remote catalog information for the underlying object.
在关系昵称的注册步骤中，包装器模块试图获取底层对象的远程编目信息。
The remote access plan contained in the RPD operator is constructed by the wrapper and contains the necessary specification to invoke the remote request from the non-relational data source.
RPD操作符中的远程访问计划是由包装器构造的，其中包含为调用来自非关系数据源的远程请求所需的规范。
Characteristics of the non-relational data source are encapsulated within the wrapper.
非关系数据源的特征都封装在包装器中。
The Rsdn. Framework. Data is a namespace that represents a higher-level wrapper for ADO. NET with high performance object-relational mapping.
这是个为ado.net的高级包装器提供的命名空间，该包装器具有很高的对象-关系映射性能。
The Rsdn. Framework. Data is a namespace that represents a higher-level wrapper for ADO. NET with high performance object-relational mapping.
这是个为ado.net的高级包装器提供的命名空间，该包装器具有很高的对象-关系映射性能。
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