我使用postgis来计算2个地理坐标之间的距离.
select st_distance( 'POINT(15.651955 73.712769)'::geography,'POINT(14.806993 74.131451)'::geography) AS d;
它返回我53536.743496517米,大约等于54km,但实际距离是103km,我通过http://boulter.com/gps/distance/计算
我在查询中做错了吗？
