Column ‘XXXX‘ in order clause is ambiguous

    <select id="orderList" resultType="org.jeecg.modules.code.productorder.entity.SolutionsOrderDTO">
		
SELECT
	po.id,
	po.order_amount,
	po.order_status,
	po.order_time,
	ps.product_name,
	ps.product_main_picture_url,
	ps.first_classification,
	ps.secondary_classification,
	ps.city_area,
	ps.supplier_name
FROM
	product_order AS po
	LEFT JOIN product_solutions AS ps ON ps.id = po.product_id
	-- ${ew.customSqlSegment}MyBatis-Plus支持自定义SQL分页语句
	${ew.customSqlSegment}
	order by po.create_time
	</select>