Database Query: Support for MariaDB System-Versioned tables
MariaDB supports temporal data tables in the form of system-versioning tables (allowing you to query and operate on historic data)
SELECT * FROM t FOR SYSTEM_TIME AS OF TIMESTAMP'2016-10-09 08:07:06';
SELECT * FROM t FOR SYSTEM_TIME FROM '2016-01-01 00:00:00' TO '2017-01-01 00:00:00';
Not sure how feasible this feature request is, given this is specific to MariaDB