not supported in mysql since https dev mysql comworklogtask id11808 not supported in mysql since https dev mysql com worklog task id 11808
from django.contrib.gis.db.backends.base.features import BaseSpatialFeatures
from django.db.backends.mysql.features import DatabaseFeatures as MySQLDatabaseFeatures
from django.utils.functional import cached_property


class DatabaseFeatures(BaseSpatialFeatures, MySQLDatabaseFeatures):
    empty_intersection_returns_none = False
    has_spatialrefsys_table = False
    supports_add_srs_entry = False
    supports_distance_geodetic = False
    supports_length_geodetic = False
    supports_area_geodetic = False
    supports_transform = False
    supports_null_geometries = False
    supports_num_points_poly = False
    unsupported_geojson_options = {"crs"}

    @cached_property
    def supports_geometry_field_unique_index(self):
        
        return self.connection.mysql_is_mariadb