This method overrides django.db.backends.postgresql.introspection.DatabaseIntrospection.get_field_type.
For Oracle, the column data_type on its own is insufficient to distinguish between a FloatField and IntegerField, for example.
type of field that a geometry column is (e.g., whether it's a PointField or a PolygonField). Thus, this routine queries the PostGIS metadata tables to determine the geometry type.
Generated by nedoc v0.9 at 2020-12-29 14:04