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use mysql;
insert db (db,user,select_priv) values ('foo','dwr_foo','Y'), ('bar','dwr_bar','Y');
insert roles_mapping (user,role) values ('dwr_qux_dev','dwr_foo'),('dwr_qux_dev','dwr_bar');
insert global_priv values ('','dwr_foo','{"is_role":true}'), ('','dwr_bar','{"is_role":true}'),
('','dwr_qux_dev','{"access":16384,"is_role":true}');
flush privileges;
drop role dwr_foo;
drop role dwr_bar;
drop role dwr_qux_dev;
use test;
create table db_copy as select * from mysql.db;
delete from mysql.db;
flush privileges;
create user u1@localhost;
create role r1;
create role r2;
grant r1 to u1@localhost;
grant select on test.* to r2;
grant select on m_.* to r2;
grant r2 to r1;
show grants for u1@localhost;
Grants for u1@localhost
GRANT `r1` TO `u1`@`localhost`
GRANT USAGE ON *.* TO `u1`@`localhost`
show grants for r1;
Grants for r1
GRANT `r2` TO `r1`
GRANT USAGE ON *.* TO `r1`
GRANT USAGE ON *.* TO `r2`
GRANT SELECT ON `test`.* TO `r2`
GRANT SELECT ON `m_`.* TO `r2`
drop user u1@localhost;
drop role r1, r2;
insert mysql.db select * from db_copy;
flush privileges;
drop table db_copy;
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