SELECT shape.ST_SymDifference(
NEW ST_Geometry('LINESTRING(2 2, 3 2, 4 1)'))
FROM sample_shapes
WHERE skey = 1067;
SELECT shape.ST_SymDifference(
NEW ST_Geometry('LINESTRING(2 2, 3 2, 4 1)'))
FROM sample_shapes
WHERE skey = 1067;