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|
--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;
|
