ST_EndPoint
Signature
POINT ST_EndPoint(GEOMETRY geom);
Description
Returns the last coordinate of geom as a POINT, given that geom is a
LINESTRING or a MULTILINESTRING containing only one LINESTRING. Returns
NULL for all other Geometries.
Examples
SELECT ST_EndPoint('LINESTRING(1 2, 5 3, 2 6)');
-- Answer: POINT(2 6)

SELECT ST_EndPoint('MULTILINESTRING((1 1, 3 2, 3 1))');
-- Answer: POINT(3 1)
SELECT ST_EndPoint('MULTILINESTRING((1 1, 3 2, 3 1),
(1 2, 5 3, 2 6))');
-- Answer: NULL