В последних версиях требования безопасности увеличились.
mysql> SHOW VARIABLES LIKE 'validate_password%';
+--------------------------------------+--------+
| Variable_name | Value |
+--------------------------------------+--------+
| validate_password_check_user_name | OFF |
| validate_password_dictionary_file | |
| validate_password_length | 8 |
| validate_password_mixed_case_count | 1 |
| validate_password_number_count | 1 |
| validate_password_policy | MEDIUM |
| validate_password_special_char_count | 1 |
+--------------------------------------+--------+
7 rows in set (0,23 sec)
mysql> SET GLOBAL validate_password_length = 0;
Query OK, 0 rows affected (0,00 sec)
mysql> SET GLOBAL validate_password_mixed_case_count = 0;
Query OK, 0 rows affected (0,00 sec)
mysql> SET GLOBAL validate_password_number_count = 0;
Query OK, 0 rows affected (0,00 sec)
mysql> SET GLOBAL validate_password_special_char_count = 0;
Query OK, 0 rows affected (0,00 sec)
mysql> SHOW VARIABLES LIKE 'validate_password%';
+--------------------------------------+-------+
| Variable_name | Value |
+--------------------------------------+-------+
| validate_password_check_user_name | OFF |
| validate_password_dictionary_file | |
| validate_password_length | 4 |
| validate_password_mixed_case_count | 0 |
| validate_password_number_count | 0 |
| validate_password_policy | LOW |
| validate_password_special_char_count | 0 |
+--------------------------------------+-------+
7 rows in set (0,01 sec)
