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#
# show the global and session values;
#
select @@global.old;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.old;
show global variables like 'old';
show session variables like 'old';
select * from information_schema.global_variables where variable_name='old';
select * from information_schema.session_variables where variable_name='old';
#
# show that it's read-only
#
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set global old=1;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set session old=1;
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