`select from(select curdate() as click_date, abs(-32) as id ) a
Left join
Select * from (select curdate() as click_date2, abs(-32) as id) b` 怎么连接起来
不去重的
a union all b
去重的
a union b
`select from(select curdate() as click_date, abs(-32) as id ) a
Left join
Select * from (select curdate() as click_date2, abs(-32) as id) b` 怎么连接起来
不去重的
a union all b
去重的
a union b