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MySQL 8.0 Reference Manual  /  ...  /  GeometryCollection Class

Pre-General Availability Draft: 2017-12-16

11.5.2.8 GeometryCollection Class

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


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