An example of MySQL subpartition

This is a real-world example, but I do not recommend using MySQL partitions for production

CREATE TABLE `tlog` (`ID`int (11) NOT NULL AUTO_INCREMENT COMMENT 'key ID', `VERSON` int (11) NOT NULL DEFAULT 0 COMMENT' version', `ACTIONS` varchar (100) DEFAULT NULL COMMENT 'operation record', `ADMINID` int (11) DEFAULT 1 COMMENT 'administrator ID', `IP`varchar (20) DEFAULT' 1' COMMENT 'login Ip', `CDATE`datetime NOT NULL COMMENT', `UDATE` datetime NOT NULL COMMENT 'modification time, PRIMARY KEY (`ID`, `CDATE`) KEY `ADMINID` (`ADMINID`) USING BTREE) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT=' log table 'Time: 0.024sALTER TABLE `blog`.`t _ log` PARTITION BY RANGE (year (`CDATE`)) PARTITIONS 1SUBPARTITION BY HASH (to_days (`CDATE`)) SUBPARTITIONS 4 (PARTITION `p0` VALUES LESS THAN (2020) (SUBPARTITION `s200`, SUBPARTITION `s201`, SUBPARTITION `s202`, SUBPARTITION `s203`) Time: 0.057salter table t_logADD PARTITION (PARTITION `p1` VALUES LESS THAN (2021) (SUBPARTITION `s210` ENGINE=InnoDB, SUBPARTITION `s211` ENGINE=InnoDB, SUBPARTITION `s212` ENGINE=InnoDB) SUBPARTITION `s213` ENGINE = InnoDB) Time: 0.054s