drop user if EXISTS testuser, testuser1, testuser2, testuser3, testuser4;
drop role if EXISTS role1;
CREATE USER testuser;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser';
password_expired	password_lifetime
N	NULL
CREATE USER testuser1 PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser1';
password_expired	password_lifetime
Y	NULL
CREATE USER testuser2 PASSWORD EXPIRE DEFAULT;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser2';
password_expired	password_lifetime
N	NULL
CREATE USER testuser3 PASSWORD EXPIRE NEVER;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser3';
password_expired	password_lifetime
N	0
CREATE USER testuser4 PASSWORD EXPIRE INTERVAL 3 DAY;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser4';
password_expired	password_lifetime
N	3
CREATE ROLE role1;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'role1';
password_expired	password_lifetime
Y	NULL
ALTER USER testuser PASSWORD EXPIRE NEVER;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser';
password_expired	password_lifetime
N	0
ALTER USER testuser PASSWORD EXPIRE DEFAULT;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser';
password_expired	password_lifetime
N	NULL
ALTER USER testuser PASSWORD EXPIRE INTERVAL 3 DAY;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser';
password_expired	password_lifetime
N	3
ALTER USER testuser PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser';
password_expired	password_lifetime
Y	3
ALTER USER testuser IDENTIFIED BY '' PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser';
password_expired	password_lifetime
Y	3
ALTER USER testuser IDENTIFIED WITH 'mysql_native_password' AS '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser';
password_expired	password_lifetime
N	3
ALTER USER testuser IDENTIFIED BY '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser';
password_expired	password_lifetime
N	3
ALTER USER testuser1 PASSWORD EXPIRE NEVER;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser1';
password_expired	password_lifetime
Y	0
ALTER USER testuser1 PASSWORD EXPIRE DEFAULT;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser1';
password_expired	password_lifetime
Y	NULL
ALTER USER testuser1 PASSWORD EXPIRE INTERVAL 3 DAY;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser1';
password_expired	password_lifetime
Y	3
ALTER USER testuser1 PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser1';
password_expired	password_lifetime
Y	3
ALTER USER testuser1 IDENTIFIED BY '' PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser1';
password_expired	password_lifetime
Y	3
ALTER USER testuser1 IDENTIFIED WITH 'mysql_native_password' AS '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser1';
password_expired	password_lifetime
N	3
ALTER USER testuser1 IDENTIFIED BY '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser1';
password_expired	password_lifetime
N	3
ALTER USER testuser2 PASSWORD EXPIRE NEVER;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser2';
password_expired	password_lifetime
N	0
ALTER USER testuser2 PASSWORD EXPIRE DEFAULT;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser2';
password_expired	password_lifetime
N	NULL
ALTER USER testuser2 PASSWORD EXPIRE INTERVAL 3 DAY;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser2';
password_expired	password_lifetime
N	3
ALTER USER testuser2 PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser2';
password_expired	password_lifetime
Y	3
ALTER USER testuser2 IDENTIFIED BY '' PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser2';
password_expired	password_lifetime
Y	3
ALTER USER testuser2 IDENTIFIED WITH 'mysql_native_password' AS '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser2';
password_expired	password_lifetime
N	3
ALTER USER testuser2 IDENTIFIED BY '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser2';
password_expired	password_lifetime
N	3
ALTER USER testuser3 PASSWORD EXPIRE NEVER;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser3';
password_expired	password_lifetime
N	0
ALTER USER testuser3 PASSWORD EXPIRE DEFAULT;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser3';
password_expired	password_lifetime
N	NULL
ALTER USER testuser3 PASSWORD EXPIRE INTERVAL 3 DAY;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser3';
password_expired	password_lifetime
N	3
ALTER USER testuser3 PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser3';
password_expired	password_lifetime
Y	3
ALTER USER testuser3 IDENTIFIED BY '' PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser3';
password_expired	password_lifetime
Y	3
ALTER USER testuser3 IDENTIFIED WITH 'mysql_native_password' AS '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser3';
password_expired	password_lifetime
N	3
ALTER USER testuser3 IDENTIFIED BY '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser3';
password_expired	password_lifetime
N	3
ALTER USER testuser4 PASSWORD EXPIRE NEVER;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser4';
password_expired	password_lifetime
N	0
ALTER USER testuser4 PASSWORD EXPIRE DEFAULT;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser4';
password_expired	password_lifetime
N	NULL
ALTER USER testuser4 PASSWORD EXPIRE INTERVAL 3 DAY;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser4';
password_expired	password_lifetime
N	3
ALTER USER testuser4 PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser4';
password_expired	password_lifetime
Y	3
ALTER USER testuser4 IDENTIFIED BY '' PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser4';
password_expired	password_lifetime
Y	3
ALTER USER testuser4 IDENTIFIED WITH 'mysql_native_password' AS '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser4';
password_expired	password_lifetime
N	3
ALTER USER testuser4 IDENTIFIED BY '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser4';
password_expired	password_lifetime
N	3
ALTER USER role1 PASSWORD EXPIRE NEVER;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'role1';
password_expired	password_lifetime
Y	0
ALTER USER role1 PASSWORD EXPIRE DEFAULT;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'role1';
password_expired	password_lifetime
Y	NULL
ALTER USER role1 PASSWORD EXPIRE INTERVAL 3 DAY;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'role1';
password_expired	password_lifetime
Y	3
ALTER USER role1 PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'role1';
password_expired	password_lifetime
Y	3
ALTER USER role1 IDENTIFIED BY '' PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'role1';
password_expired	password_lifetime
Y	3
ALTER USER role1 IDENTIFIED WITH 'mysql_native_password' AS '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'role1';
password_expired	password_lifetime
N	3
ALTER USER role1 IDENTIFIED BY '';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'role1';
password_expired	password_lifetime
N	3
ALTER USER testuser PASSWORD EXPIRE;
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser';
password_expired	password_lifetime
Y	3
SET PASSWORD FOR testuser = '1234';
SELECT password_expired, password_lifetime FROM mysql.user WHERE user = 'testuser';
password_expired	password_lifetime
N	3
drop user if EXISTS ''@localhost;
CREATE USER ''@localhost IDENTIFIED BY 'pass' PASSWORD EXPIRE;
Error 3016 (HY000): The password for anonymous user cannot be expired.
CREATE USER ''@localhost IDENTIFIED BY 'pass';
ALTER USER ''@localhost PASSWORD EXPIRE;
Error 3016 (HY000): The password for anonymous user cannot be expired.
DROP USER IF EXISTS 'u1'@'localhost';
CREATE USER 'u1'@'localhost' IDENTIFIED WITH 'mysql_native_password';
ALTER USER 'u1'@'localhost' IDENTIFIED BY 'pass';
ALTER USER 'u1'@'localhost' PASSWORD EXPIRE;
SELECT password_expired FROM mysql.user WHERE user = 'u1' and host = 'localhost';
password_expired
Y
DROP USER IF EXISTS 'u1'@'localhost';
CREATE USER 'u1'@'localhost' IDENTIFIED WITH 'caching_sha2_password';
ALTER USER 'u1'@'localhost' IDENTIFIED BY 'pass';
ALTER USER 'u1'@'localhost' PASSWORD EXPIRE;
SELECT password_expired FROM mysql.user WHERE user = 'u1' and host = 'localhost';
password_expired
Y
DROP USER IF EXISTS 'u1'@'localhost';
CREATE USER 'u1'@'localhost' IDENTIFIED WITH 'tidb_sm3_password';
ALTER USER 'u1'@'localhost' IDENTIFIED BY 'pass';
ALTER USER 'u1'@'localhost' PASSWORD EXPIRE;
SELECT password_expired FROM mysql.user WHERE user = 'u1' and host = 'localhost';
password_expired
Y
drop user 'u1'@'localhost';
show variables like  "password_history";
Variable_name	Value
password_history	0
show variables like  "password_reuse_interval";
Variable_name	Value
password_reuse_interval	0
set global password_history = -1;
set global password_reuse_interval = -1;
show variables like  "password_history";
Variable_name	Value
password_history	0
show variables like  "password_reuse_interval";
Variable_name	Value
password_reuse_interval	0
set global password_history = 4294967295;
set global password_reuse_interval = 4294967295;
show variables like  "password_history";
Variable_name	Value
password_history	4294967295
show variables like  "password_reuse_interval";
Variable_name	Value
password_reuse_interval	4294967295
set global password_history = 4294967296;
set global password_reuse_interval = 4294967296;
show variables like  "password_history";
Variable_name	Value
password_history	4294967295
show variables like  "password_reuse_interval";
Variable_name	Value
password_reuse_interval	4294967295
set session password_history = 42949;
Error 1229 (HY000): Variable 'password_history' is a GLOBAL variable and should be set with SET GLOBAL
set session password_reuse_interval = 42949;
Error 1229 (HY000): Variable 'password_reuse_interval' is a GLOBAL variable and should be set with SET GLOBAL
set global password_history = DEFAULT;
set global password_reuse_interval = DEFAULT;
drop user if EXISTS testReuse;
CREATE USER testReuse;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
NULL	NULL
ALTER USER testReuse PASSWORD HISTORY 5;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
5	NULL
ALTER USER testReuse PASSWORD HISTORY 0;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
0	NULL
ALTER USER testReuse PASSWORD HISTORY DEFAULT;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
NULL	NULL
ALTER USER testReuse PASSWORD HISTORY 65536;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
65535	NULL
ALTER USER testReuse PASSWORD REUSE INTERVAL 5 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
65535	5
ALTER USER testReuse PASSWORD REUSE INTERVAL 0 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
65535	0
ALTER USER testReuse PASSWORD REUSE INTERVAL DEFAULT;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
65535	NULL
ALTER USER testReuse PASSWORD REUSE INTERVAL 65536 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
65535	65535
ALTER USER testReuse PASSWORD HISTORY 6 PASSWORD REUSE INTERVAL 6 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
6	6
ALTER USER testReuse PASSWORD HISTORY 6 PASSWORD HISTORY 7 ;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
7	6
drop USER testReuse;
CREATE USER testReuse PASSWORD HISTORY 5;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
5	NULL
drop USER testReuse;
CREATE USER testReuse PASSWORD REUSE INTERVAL 5 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
NULL	5
drop USER testReuse;
CREATE USER testReuse PASSWORD REUSE INTERVAL 5 DAY PASSWORD REUSE INTERVAL 6 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
NULL	6
drop USER testReuse;
CREATE USER testReuse PASSWORD HISTORY 5 PASSWORD REUSE INTERVAL 6 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
5	6
drop USER testReuse;
CREATE USER testReuse PASSWORD REUSE INTERVAL 6 DAY PASSWORD HISTORY 5;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
5	6
drop USER testReuse;
CREATE USER testReuse PASSWORD HISTORY -5;
Error 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your TiDB version for the right syntax to use line 1 column 40 near "-5;" 
CREATE USER testReuse PASSWORD REUSE INTERVAL -6 DAY;
Error 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your TiDB version for the right syntax to use line 1 column 47 near "-6 DAY;" 
CREATE USER testReuse PASSWORD HISTORY 65535 PASSWORD REUSE INTERVAL 65535 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
65535	65535
drop USER testReuse;
CREATE USER testReuse PASSWORD HISTORY 65536 PASSWORD REUSE INTERVAL 65536 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
65535	65535
drop USER testReuse;
CREATE USER testReuse PASSWORD HISTORY DEFAULT PASSWORD REUSE INTERVAL DEFAULT;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
NULL	NULL
drop USER testReuse;
CREATE USER testReuse PASSWORD HISTORY 0 PASSWORD REUSE INTERVAL 0 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user = 'testReuse';
Password_reuse_history	Password_reuse_time
0	0
drop user if EXISTS testReuse;
CREATE USER testReuse identified by 'test';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
set global password_history = 1;
alter USER testReuse identified by 'test';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
alter USER testReuse identified by 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
alter USER testReuse identified by 'test1';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
DROP USER testReuse;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
set global password_history = 0;
set global password_reuse_interval = 1;
CREATE USER testReuse identified by 'test';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
alter USER testReuse identified by 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
alter USER testReuse identified by 'test1';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
2
alter USER testReuse identified by 'test2';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
3
alter USER testReuse identified by 'test3';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
4
update mysql.password_history set Password_timestamp = date_sub(Password_timestamp,interval '1 0:0:1' DAY_SECOND);
alter USER testReuse identified by 'test';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
drop USER testReuse ;
set global password_reuse_interval = 0;
CREATE USER testReuse PASSWORD HISTORY 5 PASSWORD REUSE INTERVAL 6 DAY;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
drop USER testReuse ;
CREATE USER testReuse identified by 'test' PASSWORD HISTORY 5;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
alter USER testReuse identified by 'test1';
alter USER testReuse identified by 'test2';
alter USER testReuse identified by 'test3';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
4
alter USER testReuse identified by 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
alter USER testReuse identified by 'test4';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
5
alter USER testReuse identified by 'test5';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
5
alter USER testReuse identified by 'test1';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
alter USER testReuse identified by 'test';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
5
drop USER testReuse;
CREATE USER testReuse identified by 'test' PASSWORD HISTORY 5 PASSWORD REUSE INTERVAL 3 DAY;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
alter USER testReuse identified by 'test1';
alter USER testReuse identified by 'test2';
alter USER testReuse identified by 'test3';
alter USER testReuse identified by 'test4';
alter USER testReuse identified by 'test5';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
6
alter USER testReuse identified by 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
update mysql.password_history set Password_timestamp = date_sub(Password_timestamp,interval '3 0:0:1' DAY_SECOND) where user = 'testReuse' order by Password_timestamp asc limit 1;
alter USER testReuse identified by 'test';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
6
drop USER testReuse;
CREATE USER testReuse identified by 'test' PASSWORD HISTORY 5 PASSWORD REUSE INTERVAL 3 DAY;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
alter USER testReuse identified by 'test1';
alter USER testReuse identified by 'test2';
alter USER testReuse identified by 'test3';
update mysql.password_history set Password_timestamp = date_sub(Password_timestamp,interval '3 0:0:1' DAY_SECOND) where user = 'testReuse' order by Password_timestamp asc limit 1;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
4
alter USER testReuse identified by 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
ALTER USER testReuse PASSWORD HISTORY 3;
alter USER testReuse identified by 'test';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
4
drop USER testReuse;
set global password_history = 1;
set global password_reuse_interval = 1;
CREATE USER testReuse identified by 'test' PASSWORD HISTORY 0 PASSWORD REUSE INTERVAL 0 DAY;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
alter USER testReuse identified by 'test';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
drop USER testReuse;
set global password_history = 0;
set global password_reuse_interval = 360000000;
CREATE USER testReuse identified by 'test';
alter USER testReuse identified by 'test1';
alter USER testReuse identified by 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
set PASSWORD FOR testReuse = 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
alter USER testReuse identified by '';
alter USER testReuse identified by '';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
2
alter USER testReuse identified by 'test2';
set global password_reuse_interval = 4294967295;
alter USER testReuse identified by 'test3';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
4
set PASSWORD FOR testReuse = 'test4';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
5
drop USER testReuse;
set global password_reuse_interval = 0;
CREATE USER testReuse identified by 'test' PASSWORD HISTORY 5;
alter USER testReuse identified by 'test1';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
2
alter USER testReuse identified by 'test1' PASSWORD HISTORY 0;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
alter USER testReuse identified by 'test1' PASSWORD HISTORY 2 PASSWORD REUSE INTERVAL 1 DAY;
alter USER testReuse identified by 'test2';
alter USER testReuse identified by 'test3';
alter USER testReuse identified by 'test1' PASSWORD HISTORY 2 PASSWORD REUSE INTERVAL 0 DAY;
drop USER testReuse;
set global password_history = 1;
CREATE USER testReuse identified by 'test' PASSWORD HISTORY DEFAULT PASSWORD REUSE INTERVAL DEFAULT;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
ALTER USER testReuse identified by 'test' PASSWORD HISTORY DEFAULT PASSWORD REUSE INTERVAL DEFAULT;
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
ALTER USER testReuse identified by 'test1' PASSWORD HISTORY DEFAULT PASSWORD REUSE INTERVAL DEFAULT;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
set global password_history = DEFAULT;
set global password_reuse_interval = DEFAULT;
drop user if EXISTS testReuse;
CREATE USER testReuse identified with 'caching_sha2_password' by 'test' PASSWORD HISTORY 1 ;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
alter USER testReuse identified by 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
set password for testReuse = 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
alter USER testReuse identified by 'test1';
alter USER testReuse identified with 'tidb_sm3_password';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
drop USER testReuse;
CREATE USER testReuse identified with 'tidb_sm3_password' by 'test' PASSWORD HISTORY 1 ;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
alter USER testReuse identified by 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
set password for testReuse = 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
alter USER testReuse identified by 'test1';
alter USER testReuse identified with 'caching_sha2_password';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
drop USER testReuse;
CREATE USER testReuse identified with 'caching_sha2_password' by 'test' PASSWORD REUSE INTERVAL 1 DAY;
alter USER testReuse identified by 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
set password for testReuse = 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
alter USER testReuse identified by 'test1';
alter USER testReuse identified by 'test2';
alter USER testReuse identified by 'test3';
alter USER testReuse identified by 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
update mysql.password_history set Password_timestamp = date_sub(Password_timestamp,interval '1 0:0:1' DAY_SECOND) where user = 'testReuse' order by Password_timestamp asc limit 1;
alter USER testReuse identified by 'test';
drop USER testReuse;
CREATE USER testReuse identified with 'mysql_clear_password' by 'test' PASSWORD REUSE INTERVAL 1 DAY;
Error 1524 (HY000): Plugin 'mysql_clear_password' is not loaded
CREATE USER testReuse identified with 'tidb_session_token' by 'test' PASSWORD REUSE INTERVAL 1 DAY;
Error 1524 (HY000): Plugin 'tidb_session_token' is not loaded
CREATE USER testReuse identified with 'auth_socket' by 'test' PASSWORD REUSE INTERVAL 1 DAY;
ALTER USER testReuse identified by 'test' ;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
SELECT authentication_string FROM mysql.user WHERE user = 'testReuse';
authentication_string

ALTER USER testReuse identified with 'caching_sha2_password' by 'test' ;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
drop USER testReuse;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
CREATE USER testReuse identified with 'tidb_auth_token' by 'test' PASSWORD REUSE INTERVAL 1 DAY;
ALTER USER testReuse identified by 'test' ;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
set password for testReuse = 'test';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
ALTER USER testReuse identified with 'caching_sha2_password' by 'test' ;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
alter USER testReuse identified by 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
set password for testReuse = 'test';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
drop USER testReuse;
drop user if EXISTS testReuse, testReuse1, testReuse2, testReuse3;
CREATE USER testReuse identified by 'test', testReuse1 identified by 'test', testReuse2 identified by 'test' PASSWORD HISTORY 65535 PASSWORD REUSE INTERVAL 65535 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user like 'testReuse%';
Password_reuse_history	Password_reuse_time
65535	65535
65535	65535
65535	65535
ALTER USER testReuse identified by 'test1', testReuse1 identified by 'test1', testReuse2 identified by 'test1' PASSWORD HISTORY 3 PASSWORD REUSE INTERVAL 3 DAY;
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user like 'testReuse%';
Password_reuse_history	Password_reuse_time
3	3
3	3
3	3
SELECT count(*) FROM mysql.password_history WHERE user like 'testReuse%' group by user;
count(*)
2
2
2
CREATE USER testReuse3 identified by 'test';
SELECT Password_reuse_history,Password_reuse_time FROM mysql.user WHERE user like 'testReuse%';
Password_reuse_history	Password_reuse_time
3	3
3	3
3	3
NULL	NULL
SELECT count(*) FROM mysql.password_history WHERE user like 'testReuse%' group by user;
count(*)
2
2
2
ALTER USER testReuse identified by 'test1', testReuse3 identified by 'test1';
Error 3638 (HY000): Cannot use these credentials for 'testReuse@%' because they contradict the password history policy.
drop User testReuse, testReuse1, testReuse2, testReuse3;
SELECT count(*) FROM mysql.password_history WHERE user like 'testReuse%' ;
count(*)
0
drop user if EXISTS testReuse, testReuse1;
CREATE USER testReuse identified by 'test' PASSWORD HISTORY 5;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
1
alter USER testReuse identified by 'test1';
alter USER testReuse identified by 'test2';
alter USER testReuse identified by 'test3';
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
4
rename USER testReuse to testReuse1;
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse';
count(*)
0
SELECT count(*) FROM mysql.password_history WHERE user = 'testReuse1';
count(*)
4
drop user if EXISTS test1;
CREATE USER test1 IDENTIFIED WITH 'mysql_native_password' BY '1234';
ALTER USER 'test1' IDENTIFIED BY '222', 'test_not_exist'@'localhost' IDENTIFIED BY '111';
Error 1396 (HY000): Operation ALTER USER failed for 'test_not_exist'@'localhost'
SELECT authentication_string FROM mysql.User WHERE User="test1" and Host="%";
authentication_string
*A4B6157319038724E3560894F7F932C8886EBFCF
ALTER USER IF EXISTS 'test1' IDENTIFIED BY '222', 'test_not_exist'@'localhost' IDENTIFIED BY '111';
show warnings;
Level	Code	Message
Note	3162	User 'test_not_exist'@'localhost' does not exist.
SELECT authentication_string FROM mysql.User WHERE User="test1" and Host="%";
authentication_string
*899ECD04E40F745BD52A4C552BE4A818AC65FAF8