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create user foo;
create role role1;
create role role2;
create role role3;
grant role1 to foo;
grant role2 to role1;
grant role3 to foo;
connect foo, localhost, foo;
select * from information_schema.applicable_roles;
GRANTEE ROLE_NAME IS_GRANTABLE IS_DEFAULT
foo@% role1 NO NO
foo@% role3 NO NO
role1 role2 NO NULL
set default role role3;
select * from information_schema.applicable_roles;
GRANTEE ROLE_NAME IS_GRANTABLE IS_DEFAULT
foo@% role1 NO NO
foo@% role3 NO YES
role1 role2 NO NULL
set default role role1;
select * from information_schema.applicable_roles;
GRANTEE ROLE_NAME IS_GRANTABLE IS_DEFAULT
foo@% role1 NO YES
foo@% role3 NO NO
role1 role2 NO NULL
disconnect foo;
connection default;
select * from information_schema.applicable_roles;
GRANTEE ROLE_NAME IS_GRANTABLE IS_DEFAULT
role1 role2 NO NULL
root@localhost role1 YES NO
root@localhost role2 YES NO
root@localhost role3 YES NO
set default role none for foo;
connect foo, localhost, foo;
select * from information_schema.applicable_roles;
GRANTEE ROLE_NAME IS_GRANTABLE IS_DEFAULT
foo@% role1 NO NO
foo@% role3 NO NO
role1 role2 NO NULL
disconnect foo;
connection default;
select * from information_schema.applicable_roles;
GRANTEE ROLE_NAME IS_GRANTABLE IS_DEFAULT
role1 role2 NO NULL
root@localhost role1 YES NO
root@localhost role2 YES NO
root@localhost role3 YES NO
set default role role1;
select * from information_schema.applicable_roles;
GRANTEE ROLE_NAME IS_GRANTABLE IS_DEFAULT
role1 role2 NO NULL
root@localhost role1 YES YES
root@localhost role2 YES NO
root@localhost role3 YES NO
set default role role2;
select * from information_schema.applicable_roles;
GRANTEE ROLE_NAME IS_GRANTABLE IS_DEFAULT
role1 role2 NO NULL
root@localhost role1 YES NO
root@localhost role2 YES YES
root@localhost role3 YES NO
set default role role3;
select * from information_schema.applicable_roles;
GRANTEE ROLE_NAME IS_GRANTABLE IS_DEFAULT
role1 role2 NO NULL
root@localhost role1 YES NO
root@localhost role2 YES NO
root@localhost role3 YES YES
set default role none;
select * from information_schema.applicable_roles;
GRANTEE ROLE_NAME IS_GRANTABLE IS_DEFAULT
role1 role2 NO NULL
root@localhost role1 YES NO
root@localhost role2 YES NO
root@localhost role3 YES NO
drop role role3;
drop role role2;
drop role role1;
drop user foo;
update mysql.global_priv set priv=json_compact(json_remove(priv, '$.default_role'));
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