Syntax
------ 
GeometryCollection(g1,g2,...)
 
Description
----------- 
Constructs a WKB GeometryCollection. If any argument is not
a well-formed WKB representation of a geometry, the return
value is NULL.
 
Examples
-------- 
CREATE TABLE gis_geometrycollection (g GEOMETRYCOLLECTION);
SHOW FIELDS FROM gis_geometrycollection;
 
INSERT INTO gis_geometrycollection VALUES
 (GeomCollFromText('GEOMETRYCOLLECTION(POINT(0 0),
LINESTRING(0 0,10 10))')),
 (GeometryFromWKB(AsWKB(GeometryCollection(Point(44, 6),
LineString(Point(3, 6), Point(7, 9)))))),
 (GeomFromText('GeometryCollection()')),
 (GeomFromText('GeometryCollection EMPTY'));
 

 
 
 
 
 
 
 

URL: https://mariadb.com/kb/en/geometrycollection/