After upgrade to MariadDB 10.2.7, a schema update is marking change for all tables about default <null> column value. Change in mariadb: https://jira.mariadb.org/browse/MDEV-13132
After upgrade to MariadDB 10.2.7, a schema update is marking change for all tables about default column value.
Change in mariadb: https://jira.mariadb.org/browse/MDEV-13132