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MySQL 5.7 Reference Manual
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11.5.2.12 MultiSurface Class

A MultiSurface is a geometry collection composed of surface elements. MultiSurface is a noninstantiable class. Its only instantiable subclass is MultiPolygon.

MultiSurface Assertions

  • Surfaces within a MultiSurface have no interiors that intersect.

  • Surfaces within a MultiSurface have boundaries that intersect at most at a finite number of points.