Description:
The following log files shows the execution of the same statementes except that the table in the second log is with partitioning:
1. log:
SET @max_row = 20;
create table t1 (a bigint unsigned not null, primary key(a)) engine='MYISAM' ;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` bigint(20) unsigned NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
insert into t1 values (18446744073709551615), (0xFFFFFFFFFFFFFFFE), (18446744073709551613), (18446744073709551612);
select * from t1;
a
18446744073709551612
18446744073709551613
18446744073709551614
18446744073709551615
select * from t1 where a=18446744073709551615;
a
18446744073709551615
delete from t1 where a=18446744073709551615;
select * from t1;
a
18446744073709551612
18446744073709551613
18446744073709551614
2. log:
SET @max_row = 20;
create table t1 (a bigint unsigned not null, primary key(a)) engine='MYISAM'
partition by key (a) partitions 10;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` bigint(20) unsigned NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 /*!50100 PARTITION BY KEY (a) PARTITIONS 10 */
insert into t1 values (18446744073709551615), (0xFFFFFFFFFFFFFFFE), (18446744073709551613), (18446744073709551612);
select * from t1;
a
18446744073709551612
18446744073709551613
18446744073709551614
18446744073709551615
select * from t1 where a=18446744073709551615;
a
delete from t1 where a=18446744073709551615;
select * from t1;
a
18446744073709551612
18446744073709551613
18446744073709551614
18446744073709551615
How to repeat:
execute the following statments with and without partitioning:
create table t1 (a bigint unsigned not null, primary key(a))
partition by key (a) partitions 10;
show create table t1;
insert into t1 values (18446744073709551615), (0xFFFFFFFFFFFFFFFE), (18446744073709551613), (18446744073709551612);
select * from t1;
select * from t1 where a=18446744073709551615;
# select * from t1 where a='18446744073709551615';
delete from t1 where a=18446744073709551615;
select * from t1;
#drop table t1;
