INVENTORY_BOUNDARY

INventory_Boundary is a polygon describing the border around a Geophysical_Inventory item. It has a foreign key to the instance of Geophysical_Inventory, Geophysical_Inventory_Id. Similary to Dataset_Boundary, it also has a foreign key Polygon_Geometry_Id to Area, which contains the definition of the polygon. Inventory_Boundary is also a view on the table Seismic_Boundary_Polygon that stores many different types of polygons, so the SUB_TYPE must be set to Inventory_Boundary.