题解 | 支付间隔平均值
支付间隔平均值
https://www.nowcoder.com/practice/847431ad931e45348eb1ab5657144c28
select cast( round(avg(abs((timestampdiff (second, o.logtime, s.logtime))))) as signed ) gap from order_log o left join select_log s on o.order_id = s.order_id