mysql子分区的使用注意

CREATE TABLE ts (id INT, purchased DATE)

    PARTITION BY RANGE(YEAR(purchased))

    SUBPARTITION BY HASH(TO_DAYS(purchased))

    (

        PARTITION p0 VALUES LESS THAN (1990)

        (

            SUBPARTITION s0a

                DATA DIRECTORY = '/disk0'

                INDEX DIRECTORY = '/disk1',

            SUBPARTITION s0b

                DATA DIRECTORY = '/disk2'

                INDEX DIRECTORY = '/disk3'

        ),

        PARTITION p1 VALUES LESS THAN (2000)

        (

            SUBPARTITION s1a

                DATA DIRECTORY = '/disk4/data'

                INDEX DIRECTORY = '/disk4/idx',

            SUBPARTITION s1b

                DATA DIRECTORY = '/disk5/data'

                INDEX DIRECTORY = '/disk5/idx'

        ),

        PARTITION p2 VALUES LESS THAN MAXVALUE

        (

            SUBPARTITION s2a,

            SUBPARTITION s2b

        )

    );