+Indexes
+------------
+
+| Name | Fields |
+| ------- | ---------------- |
+| PRIMARY | id |
+| uid_mid | UNIQUE, uid, mid |
+| mid | mid |
+
+Foreign Keys
+------------
+
+| Field | Target Table | Target Field |
+|-------|--------------|--------------|
+| uid | [user](help/database/db_user) | uid |
+| mid | [user](help/database/db_user) | uid |
+