REPAIR [NO_WRITE_TO_BINLOG | LOCAL] VIEW view_name[, view_name] ... [FROM MYSQL]
REPAIR VIEW statement was introduced to assist with fixing MDEV-6916, an issue introduced in MariaDB 5.2 where the view algorithms were swapped compared to their MySQL on disk representation. It checks whether the view algorithm is correct. It is run as part of mariadb-upgrade, and should not normally be required in regular use.
By default it corrects the checksum and if necessary adds the mariadb-version field. If the optional
FROM MYSQL clause is used, and no mariadb-version field is present, the MERGE and TEMPTABLE algorithms are toggled.