Extension:CentralAuth/globalnames table

mysql> describe globalnames;
+---------+----------------+------+-----+---------+-------+
| Field   | Type           | Null | Key | Default | Extra |
+---------+----------------+------+-----+---------+-------+
| gn_name | varbinary(255) | NO   | PRI | NULL    |       |
+---------+----------------+------+-----+---------+-------+