ST_MakePoint

ST_MakePoint returns a point geometry whose coordinate values are the input values.

Syntax

ST_MakePoint(x, y)

ST_MakePoint(x, y, z)

ST_MakePoint(x, y, z, m)

Arguments

x

A value of data type DOUBLE PRECISION representing the first coordinate.

y

A value of data type DOUBLE PRECISION representing the second coordinate.

z

A value of data type DOUBLE PRECISION representing the third coordinate.

m

A value of data type DOUBLE PRECISION representing the fourth coordinate.

Return type

GEOMETRY of subtype POINT.

The spatial reference system identifier (SRID) value of the returned geometry is set to 0.

If x, y, z, or m is null, then null is returned.

Examples

The following SQL returns a GEOMETRY type of subtype POINT with the provided coordinates.

SELECT ST_AsText(ST_MakePoint(1,3));

st_astext
-----------
 POINT(1 3)              

The following SQL returns a GEOMETRY type of subtype POINT with the provided coordinates.

SELECT ST_AsEWKT(ST_MakePoint(1, 2, 3));

st_asewkt
----------------
 POINT Z (1 2 3)              

The following SQL returns a GEOMETRY type of subtype POINT with the provided coordinates.

SELECT ST_AsEWKT(ST_MakePoint(1, 2, 3, 4));

st_asewkt
-------------------
 POINT ZM (1 2 3 4)