--source include/have_debug_new.inc
RESET MASTER;
SET @start_global_value = @@global.gtid_executed;
SELECT @start_global_value;

#
# exists as global and session
#
select @@global.gtid_executed;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.gtid_executed;
show global variables like 'gtid_executed';
show session variables like 'gtid_executed';
--disable_warnings
select * from performance_schema.global_variables where variable_name='gtid_executed';
select * from performance_schema.session_variables where variable_name='gtid_executed';
--enable_warnings

#
# It is not writable.
#
select @@global.gtid_executed;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set @@global.gtid_executed = '';
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set @@session.gtid_executed = '';

#
# See rpl_gtid_execution.test for a comprehensive test case.
#