The ST_LineString type is used to represent a multi-segment line using straight line segments between control points.
Methods of ST_LineString:
All methods of ST_Curve
All methods of ST_Geometry
The ST_LineString type is used to represent a multi-segment line using straight line segments between control points. Each consecutive pair of points is joined with a straight line segment.
A line is an ST_LineString value with exactly two points. A linear ring is an ST_LineString value which is closed and simple.
7.2