Support for distance join between points

[pinireisman]

For parallelizing clustering algorithms at scale, it would be very useful to have an optimized join query between sets of points to find pairs of points that are within distance X from one another (similar to the Distance Join in the GeoSpark-SQL project)

One can achieve that by building polygons around one set of points and then using the "point within polygon" query, but this seems wasteful.

Any plans for such a join?

thanks!