以该查询为例:
SELECT
e.user_id,
e.expired,
e.confirmed,
e.email
FROM email_tokens as e
WHERE e.user_id = 33
查看我们一位最活跃的用户,返回结果如下:
user_id,expired,confirmed,email
33,false,false,somebody@somewhere.com
33,true,false,somebody@somewhere.com
33,true,true,somebody@somewhere.com
33,true,false,somebody@somewhere.com
33,true,false,somebody@somewhere.com
33,true,false,somebody@somewhere.com
33,true,false,somebody@somewhere.com
33,true,false,somebody@somewhere.com
33,true,false,somebody@somewhere.com
33,true,false,somebody@somewhere.com
33,true,false,somebody@somewhere.com
33,true,false,somebody@somewhere.com
33,true,true,somebody@somewhere.com
唯一未过期的行显示该邮箱尚未确认。