select @@global.aria_used_for_temp_tables;
@@global.aria_used_for_temp_tables
1
select @@session.aria_used_for_temp_tables;
ERROR HY000: Variable 'aria_used_for_temp_tables' is a GLOBAL variable
show global variables like 'aria_used_for_temp_tables';
Variable_name	Value
aria_used_for_temp_tables	ON
show session variables like 'aria_used_for_temp_tables';
Variable_name	Value
aria_used_for_temp_tables	ON
select * from information_schema.global_variables where variable_name='aria_used_for_temp_tables';
VARIABLE_NAME	VARIABLE_VALUE
ARIA_USED_FOR_TEMP_TABLES	ON
select * from information_schema.session_variables where variable_name='aria_used_for_temp_tables';
VARIABLE_NAME	VARIABLE_VALUE
ARIA_USED_FOR_TEMP_TABLES	ON
set global aria_used_for_temp_tables=1;
ERROR HY000: Variable 'aria_used_for_temp_tables' is a read only variable
set session aria_used_for_temp_tables=1;
ERROR HY000: Variable 'aria_used_for_temp_tables' is a read only variable