Hi,
The smb_roleGeneralPermissions is is identical to yours.
My Plesk is clean install, without any upgrades.
mysql> desc smb_roleGeneralPermissions;
+-------------------------+---------+------+-----+---------+---------------------+
| Field | Type | Null | Key | Default | Extra |
+-------------------------+---------+------+-----+---------+---------------------+
| id | int(11) | NO | PRI | NULL | auto_increment |
| roleId | int(11) | NO | MUL | NULL | |
| generalPermissionId | int(11) | NO | | NULL | |
| isAllowed | int(11) | YES | | NULL | |
+-------------------------+---------+------+-----+---------+---------------------+
4 rows in set (0.00 sec)