create table t2 (a int not null, primary key(a)) engine='InnoDB' partition by key (a) partitions 8192; show create table t2; Table Create Table t2 CREATE TABLE `t2` ( `a` int(11) NOT NULL, PRIMARY KEY (`a`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 /*!50100 PARTITION BY KEY (a) PARTITIONS 8192 */ 65535 inserts; select count(*) from t2; count(*) 65535 select count(*) from t2 partition (p0); count(*) 8 select count(*) from t2 partition (p10); count(*) 0 select count(*) from t2 partition (p100); count(*) 2 select count(*) from t2 partition (p1000); count(*) 22 select count(*) from t2 partition (p4000); count(*) 2 select count(*) from t2 partition (p8000); count(*) 2 select count(*) from t2 partition (p8191); count(*) 7 select * from t2 partition (p0); a 35503 37977 38009 38108 38109 38140 38141 39061 select * from t2 partition (p10); a select * from t2 partition (p100); a 14987 15903 select * from t2 partition (p1000); a 9883 13835 20549 20581 20680 20681 20682 20683 20712 20713 20714 20715 28741 28773 28872 28873 28874 28875 28904 28905 28906 28907 select * from t2 partition (p4000); a 18959 27151 select * from t2 partition (p8000); a 10373 32379 select * from t2 partition (p8191); a 690 1471 1503 4690 4722 7230 14597 delete from t2 partition (p8191); select * from t2 partition (p8191); a insert into t2 partition (p8191) values (690), (1471); select * from t2 partition (p8191); a 690 1471 update t2 partition (p8191) set a=4690 where a= 690; select * from t2 partition (p8191); a 1471 4690 load data infile 'MYSQL_TMP_DIR/data01' into table t2 partition (p8191) fields terminated by ','; select * from t2 partition (p8191); a 1471 4690 7230 14597 drop table t2;