My goal is to calculate the volume of a room whose geometry is POLYHEDRALSURFACE. First, I tried to use "ST_Volume" on my geom directly and got the following error "ERROR: function st_volume(geometry) does not exist". Then, I checked my geom is solid or not by using "ST_IsSolid", still got error "ERROR: function st_issolid(geometry) does not exist".
My PostGIS version is 2.5.