In another scenario, it could be counter-productive to generate the linestring for each and every row with which the spatial overlaptest shall be performed.
在另一种场景中,为将进行空间重叠测试的每一行生成linestring又可能产生完全不同的结果。
2
When you look at the spatial query that we used before in this article, you will notice that a new geometry was constructed as parameter for the overlaptest.
当看到我们在本文前面使用的空间查询时,您会注意到,为了重叠测试,一个新的几何图形被构造成参数。
3
It is important that the test and training documents do not overlap, which could skew the results.