Extension:ConfirmAccount/account credentials table

Schema
mysql> describe account_credentials; +-+--+--+-+-++ +-+--+--+-+-++ +-+--+--+-+-++
 * Field                  | Type             | Null | Key | Default | Extra          |
 * acd_id                 | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
 * acd_user_id            | int(10) unsigned | NO   | MUL | NULL    |                |
 * acd_real_name          | varbinary(255)   | NO   |     |         |                |
 * acd_email              | tinyblob         | NO   |     | NULL    |                |
 * acd_email_authenticated | varbinary(14)   | YES  |     | NULL    |                |
 * acd_bio                | mediumblob       | NO   |     | NULL    |                |
 * acd_notes              | mediumblob       | NO   |     | NULL    |                |
 * acd_urls               | mediumblob       | NO   |     | NULL    |                |
 * acd_ip                 | varbinary(255)   | YES  |     |         |                |
 * acd_xff                | varbinary(255)   | YES  |     |         |                |
 * acd_agent              | varbinary(255)   | YES  |     |         |                |
 * acd_filename           | varbinary(255)   | YES  |     | NULL    |                |
 * acd_storage_key        | varbinary(64)    | YES  |     | NULL    |                |
 * acd_areas              | mediumblob       | NO   |     | NULL    |                |
 * acd_registration       | varbinary(14)    | NO   |     | NULL    |                |
 * acd_accepted           | varbinary(14)    | YES  |     | NULL    |                |
 * acd_user               | int(10) unsigned | NO   |     | 0       |                |
 * acd_comment            | varbinary(255)   | NO   |     |         |                |