This is very challenging. Take my words for it. Try on any polygons you created and modified.
On Wed, 29 Oct 2025 at 14:36, Greg Troxel <[email protected]> wrote: > 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 :-) > >
