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。

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The Generate button will prepare and execute the SQL statement, and place the resulting data in a grid (on the Data Grid tab) or in individual data-aware controls (in the Data Controls tab).

Generate 按钮将准备并执行 SQL 语句，将由此产生的数据放入一个窗格中（在 Data Grid 选项卡上），或者放入单独的数据感知控件中（在 Data Controls 选项卡中）。

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