Function cassandra_cpp_sys::cass_data_type_sub_type_name

pub unsafe extern "C" fn cass_data_type_sub_type_name(
    data_type: *const CassDataType,
    index: usize,
    name: *mut *const c_char,
    name_length: *mut usize
) -> CassError

Gets the sub-type name of a UDT (user defined type) at the specified index.

@cassandra{2.1+}

Note: Only valid for UDT data types.

@param[in] data_type @param[in] index @param[out] name @param[out] name_length @return CASS_OK if successful, otherwise an error occurred.