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# 2010-01-27 - Added
#
SET @start_io_capacity = @@global.innodb_io_capacity;
SELECT @start_io_capacity;
SET @start_max_io_capacity = @@global.innodb_io_capacity_max;
SELECT @start_max_io_capacity;
#
# exists as global only
#
--echo Valid value 100 or more
select @@global.innodb_io_capacity > 99;
select @@global.innodb_io_capacity;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.innodb_io_capacity;
show global variables like 'innodb_io_capacity';
show session variables like 'innodb_io_capacity';
--disable_warnings
select * from performance_schema.global_variables where variable_name='innodb_io_capacity';
select * from performance_schema.session_variables where variable_name='innodb_io_capacity';
--enable_warnings
#
# show that it's writable
#
set global innodb_io_capacity=123;
select @@global.innodb_io_capacity;
--disable_warnings
select * from performance_schema.global_variables where variable_name='innodb_io_capacity';
select * from performance_schema.session_variables where variable_name='innodb_io_capacity';
--enable_warnings
--error ER_GLOBAL_VARIABLE
set session innodb_io_capacity=233;
#
# check the default value
#
set @@global.innodb_io_capacity=100;
set @@global.innodb_io_capacity=DEFAULT;
select @@global.innodb_io_capacity;
#
# incorrect types
#
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_io_capacity=1.1;
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_io_capacity=1e1;
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_io_capacity="foo";
set global innodb_io_capacity=7;
select @@global.innodb_io_capacity;
--disable_warnings
select * from performance_schema.global_variables where variable_name='innodb_io_capacity';
--enable_warnings
set global innodb_io_capacity=-7;
select @@global.innodb_io_capacity;
--disable_warnings
select * from performance_schema.global_variables where variable_name='innodb_io_capacity';
--enable_warnings
#
# min/max values
#
set global innodb_io_capacity=100;
select @@global.innodb_io_capacity;
set global innodb_io_capacity=@start_max_io_capacity;
select @@global.innodb_io_capacity;
set global innodb_io_capacity=@start_max_io_capacity + 1;
select @@global.innodb_io_capacity;
#
# cleanup
#
SET @@global.innodb_io_capacity = @start_io_capacity;
SELECT @@global.innodb_io_capacity;
SET @@global.innodb_io_capacity_max = @start_max_io_capacity;
SELECT @@global.innodb_io_capacity_max;
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