drop table if exists t;
create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 1;
alter table t engine=innodb;

drop table if exists t;
create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 2;
alter table t engine=innodb;

drop table if exists t;
create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 4;
alter table t engine=innodb;

drop table if exists t;
create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 8;
alter table t engine=innodb;

drop table if exists t;
create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 16;
alter table t engine=innodb;

drop table if exists t;
create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 32;
alter table t engine=innodb;

drop table if exists t;
create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 64;
alter table t engine=innodb;

drop table if exists t;
create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 128;
alter table t engine=innodb;

drop table if exists t;
create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 256;
alter table t engine=innodb;

drop table if exists t;
create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 512;
alter table t engine=innodb;

drop table if exists t;
create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 1024;
alter table t engine=innodb;

drop table if exists t;


RESULTS
-----------------

mysql> select version();
+-----------+
| version() |
+-----------+
| 5.7.16    |
+-----------+
1 row in set (0.00 sec)

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 1;
Query OK, 0 rows affected (0.01 sec)

mysql> alter table t engine=innodb;
Query OK, 0 rows affected (0.02 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected (0.00 sec)

mysql> create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 2;
Query OK, 0 rows affected (0.00 sec)

mysql> alter table t engine=innodb;
Query OK, 0 rows affected (0.02 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected (0.00 sec)

mysql> create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 4;
Query OK, 0 rows affected (0.01 sec)

mysql> alter table t engine=innodb;
Query OK, 0 rows affected (0.07 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected (0.01 sec)

mysql> create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 8;
Query OK, 0 rows affected (0.01 sec)

mysql> alter table t engine=innodb;
Query OK, 0 rows affected (0.06 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected (0.01 sec)

mysql> create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 16;
Query OK, 0 rows affected (0.01 sec)

mysql> alter table t engine=innodb;
Query OK, 0 rows affected (0.10 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected (0.02 sec)

mysql> create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 32;
Query OK, 0 rows affected (0.02 sec)

mysql> alter table t engine=innodb;
Query OK, 0 rows affected (0.56 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected (0.04 sec)

mysql> create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 64;
Query OK, 0 rows affected (0.02 sec)

mysql> alter table t engine=innodb;
Query OK, 0 rows affected (1.66 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected (0.07 sec)

mysql> create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 128;
Query OK, 0 rows affected (0.05 sec)

mysql> alter table t engine=innodb;
Query OK, 0 rows affected (4.07 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected (0.17 sec)

mysql> create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 256;
Query OK, 0 rows affected (0.10 sec)

mysql> alter table t engine=innodb;
Query OK, 0 rows affected (13.08 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected (0.41 sec)

mysql> create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 512;
Query OK, 0 rows affected (0.19 sec)

mysql> alter table t engine=innodb;
Query OK, 0 rows affected (23.09 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected (0.63 sec)

mysql> create table t(c1 int,c2 char,unique key(c1)) engine=myisam partition by linear key(c1) partitions 1024;
Query OK, 0 rows affected (0.34 sec)

mysql> alter table t engine=innodb;
Query OK, 0 rows affected (35.44 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql>
mysql> drop table if exists t;
Query OK, 0 rows affected (1.23 sec)

mysql>