char*query=(char*)"SELECT writer_hostgroup, hostname, port, MAX(use_ssl) use_ssl , writer_is_also_reader , max_transactions_behind FROM mysql_servers JOIN mysql_group_replication_hostgroups ON hostgroup_id=writer_hostgroup OR hostgroup_id=backup_writer_hostgroup OR hostgroup_id=reader_hostgroup OR hostgroup_id=offline_hostgroup GROUP BY hostname, port";