public static function getPrimaryColumns()
    {
        return [
            MonitoringStorage::COLUMN_DELIVERY_EXECUTION_ID,
            MonitoringStorage::COLUMN_STATUS,
            MonitoringStorage::COLUMN_CURRENT_ASSESSMENT_ITEM,
            MonitoringStorage::COLUMN_TEST_TAKER,
            MonitoringStorage::COLUMN_AUTHORIZED_BY,
            MonitoringStorage::COLUMN_START_TIME,
            MonitoringStorage::COLUMN_END_TIME,
            MonitoringStorage::DELIVERY_ID,
            MonitoringStorage::DELIVERY_NAME,
        ];
    }