This method overrides django.contrib.gis.db.backends.base.operations.BaseSpatialOperations.convert_extent.
This method overrides django.contrib.gis.db.backends.base.operations.BaseSpatialOperations.geo_db_type.
This method overrides django.contrib.gis.db.backends.base.operations.BaseSpatialOperations.geometry_columns.
This method overrides django.contrib.gis.db.backends.base.operations.BaseSpatialOperations.get_distance.
This method overrides django.contrib.gis.db.backends.base.operations.BaseSpatialOperations.get_geometry_converter.
This method overrides django.contrib.gis.db.backends.base.operations.BaseSpatialOperations.spatial_aggregate_name.
This method overrides django.contrib.gis.db.backends.base.operations.BaseSpatialOperations.spatial_ref_sys.