This article outlines the database structure for the MMv4 order_item_status database table.

• id
  Primary key of this table.
  int(10) | unsigned | indexed
• order_item_id
  Reference to the order items's SID number: order_item.id.
  int(10) | unsigned | indexed
• status
  The current status of the order item.
  int(10) | unsigned | indexed
• create_date
  Unix timestamp of the date the order item status was created.
  int(10) | unsigned | Values: 0/timestamp | indexed