id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc 4988,SFCGAL doesn't specify unknown type when dealing with curves,robe,robe,"Minor issue but: ST_3DDifference returns: {{{ ERROR: LWGEOM2SFCGAL: Unknown geometry type ! }}} With curved surfaces - a query such as: {{{ SELECT ST_3DDifference('POLYHEDRALSURFACE Z (((-72.2 41.755 0,-72.2 41.755 1,-72.2 42.755 1,-72.2 42.755 0,-72.2 41.755 0)),((-72.2 41.755 0,-72.2 42.755 0,-71.2 42.755 0,-71.2 41.755 0,-72.2 41.755 0)),((-72.2 41.755 0,-71.2 41.755 0,-71.2 41.755 1,-72.2 41.755 1,-72.2 41.755 0)),((-71.2 42.755 0,-71.2 42.755 1,-71.2 41.755 1,-71.2 41.755 0,-71.2 42.755 0)),((-72.2 42.755 0,-72.2 42.755 1,-71.2 42.755 1,-71.2 42.755 0,-72.2 42.755 0)),((-72.2 41.755 1,-71.2 41.755 1,-71.2 42.755 1,-72.2 42.755 1,-72.2 41.755 1)))'::geometry,' MULTISURFACE(CURVEPOLYGON(CIRCULARSTRING(-71.0821 42.3036,-71.4821 42.3036,-71.7821 42.7036,-71.0821 42.7036,-71.0821 42.3036),(-71.1821 42.4036,-71.3821 42.6036,-71.3821 42.4036,-71.1821 42.4036)))'::geometry); }}} Same issue with ST_3DUnion",defect,closed,low,PostGIS 3.3.2,sfcgal,master,fixed,,