1difference - toxic second point 2:memory: #use in-memory database 3SELECT ST_Difference(MakePoint(136,-35), GeomFromText('POLYGON((136 -35, 135.2 -34.5, 136 -35.2, 136 -35, 135.2 -34.5))')) 41 # rows (not including the header row) 51 # columns 6ST_Difference(MakePoint(136,-35), GeomFromText('POLYGON((136 -35, 135.2 -34.5, 136 -35.2, 136 -35, 135.2 -34.5))')) 7(NULL) 8 9