+ALTER TABLE invoice ADD COLUMN active_price_source TEXT NOT NULL DEFAULT '';
+
+UPDATE orderitems SET active_price_source = 'pricegroup/' || pricegroup_id WHERE pricegroup_id > 0;
+UPDATE delivery_order_items SET active_price_source = 'pricegroup/' || pricegroup_id WHERE pricegroup_id > 0;
+UPDATE invoice SET active_price_source = 'pricegroup/' || pricegroup_id WHERE pricegroup_id > 0;