ST_Points — Returns a MultiPoint containing the coordinates of a geometry.


geometry ST_Points( geometry geom );


Returns a MultiPoint containing all the coordinates of a geometry. Duplicate points are preserved, including the start and end points of ring geometries. (If desired, duplicate points can be removed by calling ST_RemoveRepeatedPoints on the result).

To obtain information about the position of each coordinate in the parent geometry use ST_DumpPoints.

M and Z coordinates are preserved if present.

This method supports Circular Strings and Curves.

This function supports 3d and will not drop the z-index.

Availability: 2.3.0


SELECT ST_AsText(ST_Points('POLYGON Z ((30 10 4,10 30 5,40 40 6, 30 10))'));

MULTIPOINT Z ((30 10 4),(10 30 5),(40 40 6),(30 10 4))

See Also

ST_RemoveRepeatedPoints, ST_DumpPoints