Parse the 'Field Descriptor' (Metadata) packet.

        This is compatible with MySQL 4.1+ (not compatible with MySQL 4.0).

def _parse_field_descriptor(self, encoding):
        """Parse the 'Field Descriptor' (Metadata) packet.

        This is compatible with MySQL 4.1+ (not compatible with MySQL 4.0).
        """
        self.catalog = self.read_length_coded_string()
        self.db = self.read_length_coded_string()
        self.table_name = self.read_length_coded_string().decode(encoding)
        self.org_table = self.read_length_coded_string().decode(encoding)
        self.name = self.read_length_coded_string().decode(encoding)
        self.org_name = self.read_length_coded_string().decode(encoding)
        self.charsetnr, self.length, self.type_code, self.flags, self.scale = (
            self.read_struct('<xHIBHBxx'))