This topic describes the ST_ForceCollection function. This function converts a geometry object into a GeometryCollection object.

Syntax

geometry  ST_ForceCollection(geometry  geomA);

Parameters

Parameter Description
geomA The geometry object that you want to specify.

Description

  • The ST_ForceCollection function is useful for simplifying the Well-Known Binary (WKB) representation.
  • This function supports circular strings, curves, and polyhedral surfaces.
  • This function supports 3D objects and does not delete z coordinates.

Examples

SELECT ST_AsText(ST_ForceCollection(ST_GeomFromText('POLYGON((1 1,2 1,2 2,1 2,1 1))')));
                     st_astext
----------------------------------------------------
 GEOMETRYCOLLECTION(POLYGON((1 1,2 1,2 2,1 2,1 1)))
(1 row)