Question

我正在使用elasticsearch来创建方面。它适用于计数，但我尝试更复杂的任务。问题是我不知道我想做的任务的名称....

我的实际方面查询：

"facets": {
  "name": {"terms": {"field": "name", "size": 20}}
}

回应：

"name": {
  "_type": "terms",
  "missing": 0,
  "total": 11,
  "other": 0,
  "terms": [
    {          "term": "liliales",      "count": 4        },
    {          "term": "commelinales",  "count": 3        },
    {          "term": "dioscoreales",  "count": 2        },
    {          "term": "arecales",      "count": 1        },
    {          "term": "poales",        "count": 1        }
  ] } }

这是我的数据的例子：

     name        |    rank       
_________________________________
liliales         | accepted
liliales         | accepted
liliales         | misapplied
liliales         | synonym

commelinales     | accepted
commelinales     | misapplied
commelinales     | synonym

dioscoreales     | misapplied
dioscoreales     | synonym

arecales         | accepted

poalesa          | synonym

我希望每个学期都有一个计数为“等级”的子数组，如下所示：

"name" : {
    "_type" : "terms",
    "missing" : 0,
    "total" : 11,
    "other" : 0,
    "terms" : [{
            "term" : "liliales",
            "count" : 4,
            "rank" : {
                "accepted" : 2,
                "misapplied" : 1,
                "synonym" : 1
            }
        }, {
            "term" : "commelinales",
            "count" : 3,
            "rank" : {
                "accepted" : 1,
                "misapplied" : 1,
                "synonym" : 1
            }
        }, {
            "term" : "dioscoreales",
            "count" : 2,
            "rank" : {
                "misapplied" : 1,
                "synonym" : 1
            }
        }, {
            "term" : "arecales",
            "count" : 1,
            "rank" : {
                "accepted" : 1
            }
        }, {
            "term" : "poales",
            "count" : 1,
            "rank" : {
                "synonym" : 1
            }
        }
    ]
}

这个方面的名称是什么，请问我该怎么做？

感谢提前

Answer 1

我认为您正在寻找聚合。

为构建多级聚合而构建聚合。

因此，您可以为name设置第一个级别，然后为rank设置另一个级别。

类似的东西：

GET _search
{
  "aggs": {
    "by_name": {
      "terms": {
        "field": "name"
      },
      "aggs": {
        "by_rank": {
          "terms": {
            "field": "rank"
          }
        }
      }
    }
  }
}

elasticsearch聚合（具有子面的面）

1 个答案: