Hey Paul, we have this feature added as a Lua script, but adding it in a native way could be interesting actually. Itamar Haber wrote the Lua script and was pushing for adding it in a native way, I wanted to check after the release the actual demand for it.
This would be extremely helpful. We work with local governments and they have a cornucopia of geo-boundaries to query across. PostGIS works really well, but providing a cache-layer on top via Redis for simple counts would be amazing.
