ST_RemovePoint

Introduction: RETURN Line with removed point at given index, position can be omitted and then last one will be removed.

Format: ST_RemovePoint(geom: geometry, position: integer)

Format: ST_RemovePoint(geom: geometry)

SQL example:

SELECT ST_RemovePoint(ST_GeomFromText('LINESTRING(0 0, 1 1, 1 0)'), 1)

Output: LINESTRING(0 0, 1 0)