不要直接对比字符串，应该将时间字段转换成字符串类型再进行对比。

比如：

db.collection("rideRecords")

.aggregate()

.match({

  'record.subLineId': 'l1',

  creationDate: _.gte('2022-01-30 00:00:00').and(_.lte('2022-01-30 23:59:59')),

  'record.people._id': "381d149061ac0a5a00921a680d1281fe"

})

.lookup({

  from: "sublineRecords",

  localField: "_id",

  foreignField: "rideRecords",

  as: "sublineRecords"

})

.lookup({

  from: "driverRecords",

  localField: "sublineRecords.driverRecordID",

  foreignField: "_id",

  as: "driverRecords"

})

.end()

上面语句，执行时返回空。

改成：

db.collection("rideRecords")

.aggregate()

.addFields({

  formatDate: $.dateToString({

    date:'$creationDate',

    format:'%Y-%m-%d %H:%M:%S',

    timezone:'Asia/Shanghai'

  })

})

.match({

  'record.subLineId': 's4',

  formatDate:_.gte('2022-01-30 00:00:00').and(_.lte('2022-01-30 23:59:59')),

})

.end()

关键点：把日期型通过格式转化：dateToString，转成字符类型再做比较

dateToString 相关文档：

https://developers.weixin.qq.com/miniprogram/dev/wxcloud/reference-sdk-api/database/command/aggregate/AggregateCommand.dateToString.html

参考文档：https://www.jianshu.com/p/8da04042ffdd