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create database mysqltest1;
create table mysqltest1.t1 (a int, b int);
create table mysqltest1.t2 (a int, b int);
insert mysqltest1.t1 values (1,2),(3,4);
insert mysqltest1.t2 values (5,6),(7,8);
create procedure mysqltest1.pr1() select "pr1";
create user foo@localhost;
create role role1;
create role role2;
grant role2 to role1;
grant role1 to foo@localhost;
grant reload on *.* to role2;
grant select on mysql.* to role2;
grant execute on procedure mysqltest1.pr1 to role2;
grant select on mysqltest1.t1 to role2;
grant select (a) on mysqltest1.t2 to role2;
connect foo,localhost,foo;
flush tables;
ERROR 42000: Access denied; you need (at least one of) the RELOAD privilege(s) for this operation
select * from mysql.roles_mapping;
ERROR 42000: SELECT command denied to user 'foo'@'localhost' for table 'roles_mapping'
show tables from mysqltest1;
ERROR 42000: Access denied for user 'foo'@'localhost' to database 'mysqltest1'
set role role1;
flush tables;
select * from mysql.roles_mapping;
Host User Role Admin_option
role1 role2 N
localhost foo role1 N
localhost root role1 Y
localhost root role2 Y
show tables from mysqltest1;
Tables_in_mysqltest1
t1
t2
select * from mysqltest1.t1;
a b
1 2
3 4
select * from mysqltest1.t2;
ERROR 42000: SELECT command denied to user 'foo'@'localhost' for table 't2'
select a from mysqltest1.t2;
a
5
7
call mysqltest1.pr1();
pr1
pr1
connection default;
revoke execute on procedure mysqltest1.pr1 from role2;
connection foo;
call mysqltest1.pr1();
ERROR 42000: execute command denied to user 'foo'@'localhost' for routine 'mysqltest1.pr1'
connection default;
drop role role2;
connection foo;
show grants;
Grants for foo@localhost
GRANT `role1` TO `foo`@`localhost`
GRANT USAGE ON *.* TO `foo`@`localhost`
GRANT USAGE ON *.* TO `role1`
select * from information_schema.enabled_roles;
ROLE_NAME
role1
flush tables;
select * from mysql.roles_mapping;
ERROR 42000: SELECT command denied to user 'foo'@'localhost' for table 'roles_mapping'
select * from mysqltest1.t1;
ERROR 42000: SELECT command denied to user 'foo'@'localhost' for table 't1'
select a from mysqltest1.t2;
ERROR 42000: SELECT command denied to user 'foo'@'localhost' for table 't2'
set role none;
connection default;
grant reload on *.* to role1;
grant select on mysql.* to role1;
grant execute on procedure mysqltest1.pr1 to role1;
grant select on mysqltest1.t1 to role1;
grant select (a) on mysqltest1.t2 to role1;
connection foo;
set role role1;
flush tables;
select * from mysql.roles_mapping;
Host User Role Admin_option
localhost foo role1 N
localhost root role1 Y
show tables from mysqltest1;
Tables_in_mysqltest1
t1
t2
select * from mysqltest1.t1;
a b
1 2
3 4
select * from mysqltest1.t2;
ERROR 42000: SELECT command denied to user 'foo'@'localhost' for table 't2'
select a from mysqltest1.t2;
a
5
7
call mysqltest1.pr1();
pr1
pr1
connection default;
drop role role1;
connection foo;
flush tables;
select * from mysql.roles_mapping;
ERROR 42000: SELECT command denied to user 'foo'@'localhost' for table 'roles_mapping'
select * from mysqltest1.t1;
ERROR 42000: SELECT command denied to user 'foo'@'localhost' for table 't1'
select a from mysqltest1.t2;
ERROR 42000: SELECT command denied to user 'foo'@'localhost' for table 't2'
show grants;
Grants for foo@localhost
GRANT USAGE ON *.* TO `foo`@`localhost`
select * from information_schema.enabled_roles;
ROLE_NAME
NULL
select * from information_schema.enabled_roles;
ROLE_NAME
NULL
select current_role();
current_role()
role1
disconnect foo;
connection default;
drop user foo@localhost;
drop database mysqltest1;
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