#
# exists as a session only
#
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@global.rand_seed2;
select @@session.rand_seed2;
show global variables like 'rand_seed2';
show session variables like 'rand_seed2';
select * from information_schema.global_variables where variable_name='rand_seed2';
select * from information_schema.session_variables where variable_name='rand_seed2';

#
# show that it's writable
#
set session rand_seed2=1;
select @@session.rand_seed2;
--error ER_LOCAL_VARIABLE
set global rand_seed2=1;

#
# incorrect types
#
--error ER_WRONG_TYPE_FOR_VAR
set session rand_seed2=1.1;
--error ER_WRONG_TYPE_FOR_VAR
set session rand_seed2=1e1;
--error ER_WRONG_TYPE_FOR_VAR
set session rand_seed2="foo";