Extension:CentralAuth/global group restrictions table
mysql> describe global_group_restrictions; +-----------+----------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-----------+----------------+------+-----+---------+-------+ | ggr_group | varbinary(255) | NO | PRI | NULL | | | ggr_set | int(11) | NO | MUL | NULL | | +-----------+----------------+------+-----+---------+-------+