

# 2010-01-27 - Added
#

--source include/have_innodb.inc

SET @start_global_value = @@global.innodb_io_capacity;
SELECT @start_global_value;

#
# 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';
select * from information_schema.global_variables where variable_name='innodb_io_capacity';
select * from information_schema.session_variables where variable_name='innodb_io_capacity';

#
# show that it's writable
#
set global innodb_io_capacity=123;
select @@global.innodb_io_capacity;
select * from information_schema.global_variables where variable_name='innodb_io_capacity';
select * from information_schema.session_variables where variable_name='innodb_io_capacity';
--error ER_GLOBAL_VARIABLE
set session innodb_io_capacity=444;

#
# 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;
select * from information_schema.global_variables where variable_name='innodb_io_capacity';
set global innodb_io_capacity=-7;
select @@global.innodb_io_capacity;
select * from information_schema.global_variables where variable_name='innodb_io_capacity';

#
# min/max values
#
set global innodb_io_capacity=100;
select @@global.innodb_io_capacity;

#
# cleanup
#

SET @@global.innodb_io_capacity = @start_global_value;
SELECT @@global.innodb_io_capacity;
