An ST_MultiSurface is a collection of zero or more ST_Surface values, and all of the surfaces are within the spatial reference system.
Methods of ST_MultiSurface:
All methods of ST_GeomCollection type can also be called on a ST_MultiSurface type:
All methods of ST_Geometry type can also be called on a ST_MultiSurface type:
SQL/MM (ISO/IEC 13249-3: 2006) 9.5
ST_MultiSurface constructor
ST_Area method
ST_Centroid method
ST_MultiSurfaceAggr method
ST_Perimeter method
ST_PointOnSurface method
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