ST_PointZ

Introduction: Construct a Point from X, Y and Z and an optional srid. If srid is not set, it defaults to 0 (unknown). Must use ST_AsEWKT function to print the Z coordinate.

Format: ST_PointZ (X:decimal, Y:decimal, Z:decimal)

Format: ST_PointZ (X:decimal, Y:decimal, Z:decimal, srid:integer)

SELECT ST_AsEWKT(ST_PointZ(1.2345, 2.3456, 3.4567))

Output:

POINT Z(1.2345 2.3456 3.4567)