select product_id, round(avg(if_click),3) as ctr, round(sum(if_cart)/sum(if_click),3) as cart_rate, round(sum(if_payment)/sum(if_cart),3) as payment_rate, round(sum(if_refund)/sum(if_payment),3) as refund_rate from tb_user_event where date(event_time) between '2021-10-01' and '2021-10-31' group by p...