ST_Overlaps和ST_intersects

Question

我有以下问题：

SELECT 
  ST_Overlaps(a,b) AS a_overlap_b 
FROM 
  (SELECT ST_GeomFromText 
    ('LINESTRING(-118.291686 34.018886,-118.292677 34.022562,-118.291231 34.025650,-118.2906224 34.0244091,-118.286493 34.020362)') 
    AS a,
    ST_GeomFromText
      ('LINESTRING(-118.282340 34.018824,-118.289132 34.020923,-118.287198 34.023338,-118.282791 34.021858,-118.280270 34.022503)') 
    AS b)
  AS Foo)

当我使用ST_Overlaps运行这个查询时，它给出了false，而ST_Intersects给出了true。但是当我构建KML文件并在google中可视化它时，我也会看到这两个多边形重叠。有人能告诉我原因吗？

Answer 1

将几何学更改为多边形，而不是一行字符串。