LC - topographically equal with no boundary LINESTRING(0 0, 0 50, 50 50, 50 0, 0 0) MULTILINESTRING( (0 0, 0 50), (0 50, 50 50), (50 50, 50 0), (50 0, 0 0)) true true true true false false true true false false true LC - equal with boundary intersection LINESTRING(0 0, 60 0, 60 60, 60 0, 120 0) MULTILINESTRING( (0 0, 60 0), (60 0, 120 0), (60 0, 60 60)) true true true true false false true true false false true