' COUNT(item_id),SUM(item_quantity),model_reserve-SUM(item_quantity) as item_quantity_to_buy'.
' FROM item LEFT JOIN barcode USING(barcode_id) LEFT JOIN model USING(model_id)'.
' WHERE item_valid_till=0 AND status_id=1'.
' COUNT(item_id),SUM(item_quantity),model_reserve-SUM(item_quantity) as item_quantity_to_buy'.
' FROM item LEFT JOIN barcode USING(barcode_id) LEFT JOIN model USING(model_id)'.
' WHERE item_valid_till=0 AND status_id=1'.