# ulong global --source include/have_maria.inc SET @start_global_value = @@global.aria_checkpoint_log_activity; # # exists as global only # select @@global.aria_checkpoint_log_activity; --error ER_INCORRECT_GLOBAL_LOCAL_VAR select @@session.aria_checkpoint_log_activity; show global variables like 'aria_checkpoint_log_activity'; show session variables like 'aria_checkpoint_log_activity'; select * from information_schema.global_variables where variable_name='aria_checkpoint_log_activity'; select * from information_schema.session_variables where variable_name='aria_checkpoint_log_activity'; # # show that it's writable # set global aria_checkpoint_log_activity=1; select @@global.aria_checkpoint_log_activity; --error ER_GLOBAL_VARIABLE set session aria_checkpoint_log_activity=1; # # incorrect types # --error ER_WRONG_TYPE_FOR_VAR set global aria_checkpoint_log_activity=1.1; --error ER_WRONG_TYPE_FOR_VAR set global aria_checkpoint_log_activity=1e1; --error ER_WRONG_TYPE_FOR_VAR set global aria_checkpoint_log_activity="foo"; # # min/max values # set global aria_checkpoint_log_activity=0; select @@global.aria_checkpoint_log_activity; set global aria_checkpoint_log_activity=cast(-1 as unsigned int); select @@global.aria_checkpoint_log_activity; SET @@global.aria_checkpoint_log_activity = @start_global_value;