SET @start_value = @@GLOBAL.innodb_priority_cleaner;
SELECT @@GLOBAL.innodb_priority_cleaner;
@@GLOBAL.innodb_priority_cleaner
0
SELECT @@SESSION.innodb_priority_cleaner;
ERROR HY000: Variable 'innodb_priority_cleaner' is a GLOBAL variable
SET GLOBAL innodb_priority_cleaner='OFF';
SELECT @@GLOBAL.innodb_priority_cleaner;
@@GLOBAL.innodb_priority_cleaner
0
SET GLOBAL innodb_priority_cleaner='ON';
SELECT @@GLOBAL.innodb_priority_cleaner;
@@GLOBAL.innodb_priority_cleaner
1
SET GLOBAL innodb_priority_cleaner=0;
SELECT @@GLOBAL.innodb_priority_cleaner;
@@GLOBAL.innodb_priority_cleaner
0
SET GLOBAL innodb_priority_cleaner=1;
SELECT @@GLOBAL.innodb_priority_cleaner;
@@GLOBAL.innodb_priority_cleaner
1
SET GLOBAL innodb_priority_cleaner=1.1;
ERROR 42000: Incorrect argument type to variable 'innodb_priority_cleaner'
SET GLOBAL innodb_priority_cleaner=1e1;
ERROR 42000: Incorrect argument type to variable 'innodb_priority_cleaner'
SET GLOBAL innodb_priority_cleaner=2;
ERROR 42000: Variable 'innodb_priority_cleaner' can't be set to the value of '2'
SET GLOBAL innodb_priority_cleaner='foo';
ERROR 42000: Variable 'innodb_priority_cleaner' can't be set to the value of 'foo'
SET GLOBAL innodb_priority_cleaner = @start_value;
