--source include/windows.inc --source include/not_embedded.inc # # only global # select @@global.shared_memory; --error ER_INCORRECT_GLOBAL_LOCAL_VAR select @@session.shared_memory; show global variables like 'shared_memory'; show session variables like 'shared_memory'; select * from information_schema.global_variables where variable_name='shared_memory'; select * from information_schema.session_variables where variable_name='shared_memory'; # # show that it's read-only # --error ER_INCORRECT_GLOBAL_LOCAL_VAR set global shared_memory=1; --error ER_INCORRECT_GLOBAL_LOCAL_VAR set session shared_memory=1;