earth_surface_feature.position_on_earth_surface
Specifies the various earth surface positions of this feature. position_on_earth_surface.earth_surface_feature
Indicates various earth surface features which are located by this position. pos_on_esrf_s: Implements a foreign key to a row in one of the tables projected from entity position_on_earth_surface depending on the value of the next column (See below). pos_on_esrf_t: Defines the name of the referenced table. Possible values are defined in @position_on_earth_surface. esrf_feature_s: Implements a foreign key to a row in one of the tables projected from entity earth_surface_feature depending on the value of the next column (See below). esrf_feature_t: Defines the name of the referenced table. Possible values are defined in @earth_surface_feature.