我有以下查询：

GET index_name/_search
{
  "size": 0,"aggs": {
    "my_buckets": {
      "composite": {
        "size": 100,"sources": [
          {
            "field1": {
              "terms": {
                "field": "field1"
              }
            }
          },{
            "field2": {
              "terms": {
                "field": "field2.raw"
              }
            }
          },{
            "field3": {
              "terms": {
                "field": "field3"
              }
            }
          },{
            "field4": {
              "terms": {
                "field": "field4.raw"
              }
            }
          },...
          {
            "field7": {
              "terms": {
                "field": "field7"
              }
            }
          }
        ]
      },"aggregations": {
        "hits": {
          "top_hits": { 
            "size": 100,"_source": {
              "includes": "field10"
            }
          }
        }
      }
    }
  }
}

但是，结果只有8个存储桶和一个后键。我认为在key说完之后，我们会有更多结果。在那种情况下，为什么不在同一请求中检索到它？ size不指定我希望从聚合结果中获得的存储桶数吗？

以下是我的回复：

{
  ...
  "hits" : {
   ...
  },"aggregations" : {
    "my_buckets" : {
      "after_key" : {
        "field1" : 0.0,"field2" : "0.0","field3" : some-value,"field4" : "0.0","field5" : "some-value","field6" : "0.0","field7" : 0
      },"buckets" : [
        {
          "key" : {
            "field1" : 0.0,"field7" : 0
          },"doc_count" : 1,"hits" : {
            "hits" : {
              "total" : 1,"max_score" : 1.0,"hits" : [
                ...
              ]
            }
          }
        },{
          "key" : {
            "field1" : 0.0,"hits" : [
               ...
              ]
            }
          }
        },"hits" : [
                {
                  ...
                }
              ]
            }
          }
        },{
          "field1" : 0.0,"doc_count" : 2,"hits" : {
            "hits" : {
              "total" : 2,"hits" : [
                {
                  ...
                },{
                 ...
                }
              ]
            }
          }
        }
      ]
    }
  }
}

我在这里想念什么？