dagc data aware grid component 数据感知网格分量
As was explained before, the DB2 optimizer is not fully aware of all the details of the spatial grid index.
前面我们解释过，DB 2优化器不完全知道空间网格索引的细节。
Of course in order for the Grid infrastructure to manage this data for you it must be made aware of it.
当然，为了让Grid基础结构为您管理这样的数据，您必须使Grid基础结构能够理解它。
But the architects were aware of these problems and adopted the grid exactly in order to control what could not be fully controlled, allowing mistakes.
但是建筑师们意识到这些问题并且采取精确的网格以掌控那些不能充分被把控的，允许出现的错误。
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