ALTER LOGFILE GROUP logfile_group ADD UNDOFILE 'file_name' [INITIAL_SIZE [=] size] [WAIT] ENGINE [=] engine_name
The ALTER LOGFILE GROUP
statement is not supported by MariaDB. It was originally inherited from MySQL NDB Cluster. See MDEV-19295 for more information.
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Licensed under the Creative Commons Attribution 3.0 Unported License and the GNU Free Documentation License.
https://mariadb.com/kb/en/alter-logfile-group/