text: #sql("listDetail")
  	SELECT
  	c.id id,
  	g.name name,
  	g.caption caption,
  	p.sn product_id,
  	p.specification_values specification_values,
  	c.quantity quantity,
  	p.price price,
    g.image image,
    g.sn goodsId
  FROM
  	cart c
  	LEFT JOIN product p ON c.product_id = p.sn
  	LEFT JOIN goods g ON p.goods_sn = g.sn
  WHERE
  	c.user_id = #para(userId)
  #end