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YYYDD

僅用于分庫(kù)

DD是一年之中的天數(shù)

(YYYY*366+DD)%分庫(kù)數(shù)

create table travelrecord (
 ....
) ENGINE=InnoDB DEFAULT CHARSET=utf8 
dbpartition by YYYYMM(xxx) dbpartitions 8
tbpartition by xxx(xxx) tbpartitions 12;

Mycat2 哈希分片 YYYYDD

YYYDD