import part as part;

WHERE part.supplier.nation.region.name = 'EUROPE'
SELECT
	part.supplier.account_balance,
	part.supplier.name,
	part.supplier.nation.name,
	part.id,
	part.manufacturer,
	part.supplier.id,
	part.supplier.address,
	part.supplier.phone,
	part.supplier.comment,
	--part.supply_cost,
	min(part.supply_cost) by part.id as min_part_cost,
HAVING
	part.supply_cost = min_part_cost
ORDER BY
	part.id asc;