我是MongoDB的新手。我为我的高尔夫俱乐部做了一个私人项目来分析这一轮。我对应用程序使用meteorjs，并在命令行上尝试了一些聚合。但我不确定我是否对这项任务有正确的看法示例文档：{"_id":"2KasYR3ytsaX8YuoT","course":{"id":"rHmYJBhRtSt38m68s","name":"CourseXYZ"},"player":{"id":"tdaYaSvXJueDq4oTN","firstname":"Just","lastname":"aPlayer"},"event":"TrainingDay","tees":[{"tee":1,"par":