time query的意思|示意

REOPT once: query optimization occurs once at query execution time, when the query is executed for the first time.

REOPT ONCE：查询执行中只发生一次查询优化，即在查询第一次执行时。

So we create a spatial grid index that will be used at query time.

所以我们创建一个空间网格索引，这个索引将在查询时用到。

The effects of clustering the rows by their spatial properties rely on accessing just a subset of the data during query time.

按照空间属性聚集这些行的效果取决于在查询时对一个数据子集的访问。

This feature limits the server load and reduces the waiting time for large query sets.

该特性限制了服务器负载，并降低了大型查询集合的等待时间。

Such rules can significantly reduce query execution time.

这些规则可以显著减少查询执行时间。

The index could improve the efficiency of run-time query without affecting the data collection tasks.

该技术在不影响数据收集任务的前提下，可以提供对所收集数据的高效查询。