Mycat2 哈希分片 MM

MM

僅用于分表

僅支持DATE/DATETIME

月份(1-12)%分表數(shù)

tbpartitions不超過12

create table travelrecord (
 ....
) ENGINE=InnoDB DEFAULT CHARSET=utf8 
dbpartition by xxx(xxx) dbpartition 12
tbpartition by MM(xxx) tbpartitions 12;