(mysql.info) gis-class-geometrycollection

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(mysql.info) gis-class-polygon

(mysql.info) opengis-geometry-model

(mysql.info) gis-class-multipoint

 
 16.2.8 Class `GeometryCollection'
 ---------------------------------
 
 A `GeometryCollection' is a geometry that is a collection of one or
 more geometries of any class.
 
 All the elements in a `GeometryCollection' must be in the same Spatial
 Reference System (that is, in the same coordinate system). There are no
 other constraints on the elements of a `GeometryCollection', although
 the subclasses of `GeometryCollection' described in the following
 sections may restrict membership.  Restrictions may be based on:
 
    * Element type (for example, a `MultiPoint' may contain only `Point'
      elements)
 
    * Dimension
 
    * Constraints on the degree of spatial overlap between elements
 

Info Catalog

(mysql.info) gis-class-polygon

(mysql.info) opengis-geometry-model

(mysql.info) gis-class-multipoint