Extension:ContributionTracking/contribution tracking owa ref table

mysql> describe contribution_tracking_owa_ref; +---++--+-+-++ +---++--+-+-++ +---++--+-+-++
 * Field | Type          | Null | Key | Default | Extra          |
 * url  | varbinary(255) | YES  | UNI | NULL    |                |
 * id   | int(11)        | NO   | PRI | NULL    | auto_increment |