SET @start_global_value = @@global.innodb_encryption_rotation_iops;
select @@global.innodb_encryption_rotation_iops;
@@global.innodb_encryption_rotation_iops
100
select @@session.innodb_encryption_rotation_iops;
ERROR HY000: Variable 'innodb_encryption_rotation_iops' is a GLOBAL variable
show global variables like 'innodb_encryption_rotation_iops';
Variable_name	Value
innodb_encryption_rotation_iops	100
show session variables like 'innodb_encryption_rotation_iops';
Variable_name	Value
innodb_encryption_rotation_iops	100
select * from information_schema.global_variables
where variable_name='innodb_encryption_rotation_iops';
VARIABLE_NAME	VARIABLE_VALUE
INNODB_ENCRYPTION_ROTATION_IOPS	100
select * from information_schema.session_variables
where variable_name='innodb_encryption_rotation_iops';
VARIABLE_NAME	VARIABLE_VALUE
INNODB_ENCRYPTION_ROTATION_IOPS	100
set global innodb_encryption_rotation_iops=100;
select @@global.innodb_encryption_rotation_iops;
@@global.innodb_encryption_rotation_iops
100
set global innodb_encryption_rotation_iops=50;
select @@global.innodb_encryption_rotation_iops;
@@global.innodb_encryption_rotation_iops
50
set global innodb_encryption_rotation_iops=100;
select @@global.innodb_encryption_rotation_iops;
@@global.innodb_encryption_rotation_iops
100
set session innodb_encryption_rotation_iops=50;
ERROR HY000: Variable 'innodb_encryption_rotation_iops' is a GLOBAL variable and should be set with SET GLOBAL
set global innodb_encryption_rotation_iops=1.1;
ERROR 42000: Incorrect argument type to variable 'innodb_encryption_rotation_iops'
set global innodb_encryption_rotation_iops=1e1;
ERROR 42000: Incorrect argument type to variable 'innodb_encryption_rotation_iops'
set global innodb_encryption_rotation_iops="foo";
ERROR 42000: Incorrect argument type to variable 'innodb_encryption_rotation_iops'
SET @@global.innodb_encryption_rotation_iops = @start_global_value;