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source include/not_embedded.inc;
create user test_user@localhost;
create role test_role1;
create role test_role2;
grant test_role1 to test_user@localhost;
grant test_role2 to test_role1;
--sorted_result
select user, host from mysql.user where user not like 'root';
--sorted_result
select * from mysql.roles_mapping;
grant select (Role) on mysql.roles_mapping to test_role2;
change_user 'test_user';
--error ER_TABLEACCESS_DENIED_ERROR
select * from mysql.roles_mapping;
--sorted_result
show grants;
select current_user(), current_role();
set role test_role1;
select current_user(), current_role();
--sorted_result
show grants;
--error ER_COLUMNACCESS_DENIED_ERROR
select * from mysql.roles_mapping;
--sorted_result
select Role from mysql.roles_mapping;
--sorted_result
show grants;
use mysql;
set role none;
select current_user(), current_role();
--sorted_result
--error ER_TABLEACCESS_DENIED_ERROR
select Role from mysql.roles_mapping;
change_user 'root';
drop user 'test_user'@'localhost';
select * from mysql.tables_priv;
revoke select on mysql.roles_mapping from test_role2;
delete from mysql.user where user like'test_%';
delete from mysql.roles_mapping where Role like 'test%';
flush privileges;
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