Shaozhong SHI <[email protected]> writes: > Visually, there appears some matching polygons. Even if two geometries > represent the same shape visually, they might not be considered equal due > to tiny differences in precision or metadata. Have you encountered > problems of failure of spatial join? How did you overcome the problems? > Regards, David
Could you post your example polygons, and the queries you are using? Your question is much too open ended. It even sounds like it might be a request for help with GIS homework, but it's hard to tell :-)
