文件名称:kongjiancuncu
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空间存储结构的目标:方便空间选取和连接查询。
在响应一条查询时,存取方法只需要查询该空间中所有对象的一个关联子集。-Space to store the structure of the goal: to facilitate spatial selection and join queries. In response to a query, access method need only check all the objects in the space of an associated subset.
在响应一条查询时,存取方法只需要查询该空间中所有对象的一个关联子集。-Space to store the structure of the goal: to facilitate spatial selection and join queries. In response to a query, access method need only check all the objects in the space of an associated subset.
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kongjiancuncu.ppt