Comments - MariaDB Connector/J 2.2.6 Release Notes
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Boolean data type is missing.
In Create table: Active BOOLEAN NOT NULL, is accepted
In Column view, converted: Active tinyint(1)
That's because BOOLEAN is an alias for tiyint (see documentation https://mariadb.com/kb/en/library/boolean/ ) There is a task for 10.4 to save real datatype : https://jira.mariadb.org/browse/MDEV-15558
Thanks. I vote for that task!