facet中的多个属性(elasticsearch)

时间:2013-03-07 17:18:50

标签: elasticsearch faceted-search

我有以下索引:

curl -XPUT "http://localhost:9200/test/" -d '
{
    "mappings": {
        "files": {
            "properties": {
                "name": {
                    "type": "string",
                    "index": "not_analyzed"
                },
                "owners": {
                    "type": "nested",
                    "properties": {
                        "name": {
                            "type":"string",
                            "index":"not_analyzed"
                        },
                        "mail": {
                            "type":"string",
                            "index":"not_analyzed"
                        }
                    }
                }
            }
        }
    }
}
'

使用示例文档:

curl -XPUT "http://localhost:9200/test/files/1" -d '
{
    "name": "first.jpg",
    "owners": [
        {
            "name": "John Smith",
            "mail": "js@example.com"
        },
        {
            "name": "Joe Smith",
            "mail": "joes@example.com"
        }
    ]
}
'

curl -XPUT "http://localhost:9200/test/files/2" -d '
{
    "name": "second.jpg",
    "owners": [
        {
            "name": "John Smith",
            "mail": "js@example.com"
        },
        {
            "name": "Ann Smith",
            "mail": "as@example.com"
        }
    ]
}
'

curl -XPUT "http://localhost:9200/test/files/3" -d '
{
    "name": "third.jpg",
    "owners": [
        {
            "name": "Kate Foo",
            "mail": "kf@example.com"
        }
    ]
}
'

我需要找到所有符合某些查询的所有者,让我们说“mit”:

curl -XGET "http://localhost:9200/test/files/_search" -d '
{
    "facets": {
        "owners": {
            "terms": {
                "field": "owners.name"
            },
            "facet_filter": {
                "query": {
                    "query_string": {
                        "query": "*mit*",
                        "default_field": "owners.name"
                    }
                }
            },
            "nested": "owners"
        }
    }
}
'

这给了我以下结果:

{
  "facets" : {
    "owners" : {
      "missing" : 0,
      "_type" : "terms",
      "other" : 0,
      "total" : 4,
      "terms" : [
        {
          "count" : 2,
          "term" : "John Smith"
        },
        {
          "count" : 1,
          "term" : "Joe Smith"
        },
        {
          "count" : 1,
          "term" : "Ann Smith"
        }
      ]
    }
  },
  "timed_out" : false,
  "hits" : {...}
}

没关系。 但我最需要的是让所有者拥有他们的电子邮件地址(对于facet中的每个条目,我需要在结果中添加其他字段)。 它可以实现吗?

1 个答案:

答案 0 :(得分:4)

我觉得不可能吗?根据您的需要,我会

  1. 使用name&创建一个复合字段发送电子邮件并在该字段上执行方面,或
  2. 除了facet之外运行查询并从查询结果中提取它,但这显然不可扩展
  3. 两步操作,获取方面,构建所需的查询并合并结果。