This method is overriden in:
This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_constraints.
This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_field_type.
For Oracle, the column data_type on its own is insufficient to distinguish between a FloatField and IntegerField, for example.
This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_key_columns.
This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_primary_key_column.
This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_relations.
This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_sequences.
This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_table_description.
This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.get_table_list.
This method overrides django.db.backends.base.introspection.BaseDatabaseIntrospection.identifier_converter.