--source include/not_embedded.inc

#
# Only global
#

select @@global.host_cache_size;

--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.host_cache_size;

show global variables like 'host_cache_size';

show session variables like 'host_cache_size';

select * from information_schema.global_variables
  where variable_name='host_cache_size';

select * from information_schema.session_variables
  where variable_name='host_cache_size';

#
# Read-Write
#

set global host_cache_size=1;
select @@global.host_cache_size;

set global host_cache_size=12;
select @@global.host_cache_size;

set global host_cache_size=0;
select @@global.host_cache_size;

--error ER_GLOBAL_VARIABLE
set session host_cache_size=1;

# Restore default
set global host_cache_size=123;
select @@global.host_cache_size;