Extension:Newsletter/nl subscriptions table

mysql> describe nl_subscriptions; +---+-+--+-+-+---+ +---+-+--+-+-+---+ +---+-+--+-+-+---+
 * Field            | Type    | Null | Key | Default | Extra |
 * nls_newsletter_id | int(11) | NO  | PRI | NULL    |       |
 * nls_subscriber_id | int(11) | NO  | PRI | NULL    |       |