分区表(二)

alter table scales add partition (partition p2 values less than (2015));

alter table log drop partition p0;

show variables like ‘%partition%‘;

alter table user reorganize partition p0,p1,p2 into (partition p3 values less than (2011));

alter table log partition by hash(YEAR(time)) partitions 6;

alter table x partition by range(salary)(partition values less than 100);

alter table x rebuild partition p0,p1;

alter table x optimize partition p1,p2;

alter table x analyze partition p1,p2;

alter table x repair partition p1,p2;

explain partitions select * from log where YEAR(time)>2016-06-01 and YEAR(time)<2016-06-30;