insert into history_minutely_${yearAndMonth} values (#{map.mac},#{map.time},#{map.json}) CREATE TABLE IF NOT EXISTS `history_minutely_${yearAndMonth}` ( `mac` varchar(30) CHARACTER SET latin1 DEFAULT NULL, `time` datetime DEFAULT NULL, `json` json DEFAULT NULL, KEY `_idx_mac` (`mac`) USING BTREE, KEY `_idx_time` (`time`) USING BTREE, KEY `_idx_mac_time` (`mac`,`time`) USING BTREE ) ENGINE=InnoDB DEFAULT CHARSET=utf8;