COMMENT="This table registers and action performed by a user at a given time, all information of the action is in JSON format in the 'description' column and the operation performed is one of the possible for the 'type' column";
COMMENT="This table registers and action performed by a user at a given time, all information of the action is in JSON format in the 'description' column and the operation performed is one of the possible for the 'type' column. NOTE: timestamps must support fractional seconds, so MySQL versions >= 5.6.4 are required.";