每当尝试查询一个空间列时，DB 2加入一个转换，该转换将内部的、结构化类型的表示转换为应用程序能理解的表示。
Whenever you try to query a spatial column, DB2 injects a transformation from the internal, structured type representation to a representation that can be understood by the application.
除了实现SPARQL之外，ARQ的查询引擎还可以解析使用RDQL或者它自己内部的查询语言表示的查询。
In addition to implementing SPARQL, ARQ's query engine can also parse queries expressed in RDQL or its own internal query language.
除了实现SPARQL之外，ARQ的查询引擎还可以解析使用RDQL或者它自己内部的查询语言表示的查询。
In addition to implementing SPARQL, ARQ's query engine can also parse queries expressed in RDQL or its own internal query language.
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