我的elasticsearch查询如下：

{
    "size": 0,
    "aggs": {
        "group_by_name": {
            "terms": {
                "field": "Infos.InstanceInfo.Name.keyword",
                "size": 1000
            },
            "aggs": {
                "group_by_id": {
                    "terms": {
                        "field": "Infos.InstanceInfo.ID.keyword",
                        "size": 1000
                    },
                    "aggs": {
                        "tops": {
                            "top_hits": {
                                "size": 100,
                                "sort": {
                                    "Infos.InstanceInfo.StartTime": "asc"
                                }
                            }
                        }
                    }
                },
                "count": {
                    "cardinality": {
                        "field": "Infos.InstanceInfo.ID.keyword"
                    }
                }
            }
        }
    }
}

很好，我有一个结果：

aggregations
==>group_by_name
======>buckets:
        {key:name1}
        =========>group_by_id
        ==============>buckets
                        {key:id1}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T19:00:00"}
                        {doc2.StartTime:"2020-12-15T20:00:00"}
                        {doc3.StartTime:"2020-12-15T21:00:00"}

                        {key:id2}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T09:00:00"}
                        {doc2.StartTime:"2020-12-15T11:00:00"}
                        {doc3.StartTime:"2020-12-15T11:30:00"}

                        {key:id4}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T22:00:00"}
                        {doc2.StartTime:"2020-12-15T23:00:00"}
                        {doc3.StartTime:"2020-12-15T23:30:00"}

        {key:name2}
        =========>group_by_id
        ==============>buckets
                        {key:id5}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T05:00:00"}
                        {doc2.StartTime:"2020-12-15T05:30:00"}
                        {doc3.StartTime:"2020-12-15T06:00:00"}

                        {key:id8}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T01:00:00"}
                        {doc2.StartTime:"2020-12-15T01:00:15"}
                        {doc3.StartTime:"2020-12-15T02:00:00"}

                        {key:id9}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T08:00:00"}
                        {doc2.StartTime:"2020-12-15T09:00:15"}
                        {doc3.StartTime:"2020-12-15T10:00:00"}

现在，我正试着把里面的桶分类 group_by_id 按值聚合 StartTime 对于第一个文档，要获得如下内容：

aggregations
==>group_by_name
======>buckets:
        {key:name1}
        =========>group_by_id
        ==============>buckets
                        {key:id4}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T22:00:00"}
                        {doc2.StartTime:"2020-12-15T23:00:00"}
                        {doc3.StartTime:"2020-12-15T23:30:00"}

                        {key:id1}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T19:00:00"}
                        {doc2.StartTime:"2020-12-15T20:00:00"}
                        {doc3.StartTime:"2020-12-15T21:00:00"}

                        {key:id2}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T09:00:00"}
                        {doc2.StartTime:"2020-12-15T11:00:00"}
                        {doc3.StartTime:"2020-12-15T11:30:00"}

        {key:name2}
        =========>group_by_id
        ==============>buckets
                        {key:id9}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T08:00:00"}
                        {doc2.StartTime:"2020-12-15T09:00:15"}
                        {doc3.StartTime:"2020-12-15T10:00:00"}

                        {key:id5}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T05:00:00"}
                        {doc2.StartTime:"2020-12-15T05:30:00"}
                        {doc3.StartTime:"2020-12-15T06:00:00"}

                        {key:id8}
                        ===============>docs
                        {doc1.StartTime:"2020-12-15T01:00:00"}
                        {doc2.StartTime:"2020-12-15T01:00:15"}
                        {doc3.StartTime:"2020-12-15T02:00:00"}

你知道吗？