user | sg_message_id | event | datetime -------------------------------------------------------------------------------- john player | ekjf939e9313140_34k | delivered | 04/13/2018 12:56:30 john player | ekjf939e9313140_34k | opened | 04/15/2018 16:05:00 cristian dior | dsfsk0340344030fkjkj | delivered | 04/12/2018 18:45:21 cristian dior | dsfsk0340344030fkjkj | opened | 04/13/2018 15:40:17
对于用户,对于每个唯一的 sg_message_id ,如何创建Excel数据透视表,该表可以显示电子邮件传递之间经过的小时数当打开时?