I just read from GEOS 3.7 documentation that there is a new IndexedFacetDistance imported from JTS. Reading from the JTS link, I cannot tell what the new distance metric does except that it's taking advantage of R-tree index in computing something.
So, what does the distance compute functionally?
Is its result going to be the same as
ST_HausdorffDistance or another existing distance measure in PostGIS, or is the distance for two given geometries going to be a different number from any existing distance?