我想总结stake表中的tickets，并按照customer_id表中的date_trunc('day')和bonus表中的CREATE TABLE tickets (
ticket_id integer,
customer_id integer,
stake integer,
reg_date date
);
CREATE TABLE bonus (
bonus_id integer,
customer_id integer,
reg_date date
);
insert into tickets
values
(1,100, 12,'2019-01-10 11:00'),
(2,100, 10,'2019-01-10 12:00'),
(3,100, 30,'2019-01-10 13:00'),
(4,100, 10,'2019-01-11 14:00'),
(5,100, 15,'2019-01-11 15:00'),
(6,102, 25,'2019-01-10 10:00'),
(7,102, 25,'2019-01-10 11:10'),
(8,102, 13,'2019-01-11 12:40'),
(9,102, 9,'2019-01-12 15:00'),
(10,102, 7,'2019-01-13 18:00'),
(13,103, 15,'2019-01-12 19:00'),
(14,103, 11,'2019-01-12 22:00'),
(15,103, 11,'2019-01-14 02:00'),
(16,103, 11,'2019-01-14 10:00')
;
insert into bonus
values
(200,100,'2019-01-10 05:00'),
(201,100,'2019-01-10 06:00'),
(202,100,'2019-01-10 15:00'),
(203,100,'2019-01-10 15:50'),
(204,100,'2019-01-10 16:10'),
(205,100,'2019-01-10 16:15'),
(206,100,'2019-01-10 16:22'),
(207,100,'2019-01-11 10:10'),
(208,100,'2019-01-11 16:10'),
(209,102,'2019-01-10 10:00'),
(210,102,'2019-01-10 11:00'),
(211,102,'2019-01-10 12:00'),
(212,102,'2019-01-10 13:00'),
(213,103,'2019-01-11 11:00'),
(214,103,'2019-01-11 18:00'),
(215,103,'2019-01-12 15:00'),
(216,103,'2019-01-12 16:00'),
(217,103,'2019-01-14 02:00')
select
customer_id,
date_trunc('day', b.reg_date),
sum(t.stake)
from tickets t
join bonus b using (customer_id)
where date_trunc('day', b.reg_date) = date_trunc('day', t.reg_date)
group by 1,2
order by 1
进行分组。
问题在于行正被相乘，我不知道如何解决。
https://www.db-fiddle.com/f/yWCvFamMAY9uGtoZupiAQ/4
102,2019-01-10, 50
客户102的输出应为：
{{1}}
答案 0 :(得分：1)
好的，我想您想获取const scrollHeightSpy = jest
.spyOn(document.documentElement, 'scrollHeight', 'get')
.mockImplementation(() => 100);
表中列stake的摘要数据，并且记录的tickets对已经出现在第二个表customer_id, reg_date中，并且所有业务与bonus无关，对吗？ bonus_id中的customer_id, reg_date对是重复的，因此您需要在其上有一个bonus，然后从票证中distinct join数据。完整的SQL和结果如下：
sum