* @note: this returns false for multi-source replication GTID sets
* @see https://mariadb.com/kb/en/mariadb/gtid
* @see https://dev.mysql.com/doc/refman/5.6/en/replication-gtids-concepts.html
* @note: this returns false for multi-source replication GTID sets
* @see https://mariadb.com/kb/en/mariadb/gtid
* @see https://dev.mysql.com/doc/refman/5.6/en/replication-gtids-concepts.html