select priv into @root_priv from mysql.global_priv where user='root' and host='localhost';
grant select on *.* to current_role;
ERROR 0L000: Invalid definer
revoke select on *.* from current_role;
ERROR 0L000: Invalid definer
revoke all, grant option from current_role;
ERROR 0L000: Invalid definer
create role r1;
grant insert on test.* to r1;
grant r1 to current_user;
set role r1;
select current_role();
current_role()
r1
grant select on *.* to current_role;
show grants for current_role;
Grants for r1
GRANT SELECT ON *.* TO `r1`
GRANT INSERT ON `test`.* TO `r1`
revoke insert on test.* from current_role;
show grants for current_role;
Grants for r1
GRANT SELECT ON *.* TO `r1`
revoke all, grant option from current_role;
show grants for current_role;
Grants for r1
GRANT USAGE ON *.* TO `r1`
set password=password('foobar');
show grants;
Grants for root@localhost
GRANT `r1` TO `root`@`localhost` WITH ADMIN OPTION
GRANT ALL PRIVILEGES ON *.* TO `root`@`localhost` IDENTIFIED BY PASSWORD '*9B500343BC52E2911172EB52AE5CF4847604C6E5' WITH GRANT OPTION
GRANT PROXY ON ''@'%' TO 'root'@'localhost' WITH GRANT OPTION
GRANT USAGE ON *.* TO `r1`
grant r1 to current_user() identified by 'barfoo';
show grants;
Grants for root@localhost
GRANT `r1` TO `root`@`localhost` WITH ADMIN OPTION
GRANT ALL PRIVILEGES ON *.* TO `root`@`localhost` IDENTIFIED BY PASSWORD '*343915A8181B5728EADBDC73E1F7E6B0C3998483' WITH GRANT OPTION
GRANT PROXY ON ''@'%' TO 'root'@'localhost' WITH GRANT OPTION
GRANT USAGE ON *.* TO `r1`
set password='';
drop role r1;
update mysql.global_priv set priv=@root_priv where user='root' and host='localhost';