--source include/have_lock_order.inc

#
# Only global
#

select @@global.lock_order_debug_loop;

--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.lock_order_debug_loop;

show global variables like 'lock_order_debug_loop';

show session variables like 'lock_order_debug_loop';

select * from performance_schema.global_variables
  where variable_name='lock_order_debug_loop';

select * from performance_schema.session_variables
  where variable_name='lock_order_debug_loop';

#
# Read-only
#

--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set global lock_order_debug_loop=1;

--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set session lock_order_debug_loop=1;