insert into t2 select variable_name from information_schema.global_variables;insert into t2 select variable_name from information_schema.session_variables;
update t2 set variable_name= replace(variable_name, "PERFORMANCE_SCHEMA_", "PFS_");select variable_name as `There should be *no* long test name listed below:` from t2where length(variable_name) > 50;There should be *no* long test name listed below:select variable_name as `There should be *no* variables listed below:` from t2left join t1 on variable_name=test_name where test_name is null;