我的弹性映射中有一个嵌套对象。我正在尝试为该嵌套对象创建过滤器查询答案

【问题标题】：There is a nested object in my Elastic mapping. I am trying to create a filter query for that nested object我的弹性映射中有一个嵌套对象。我正在尝试为该嵌套对象创建过滤器查询
【发布时间】：2020-09-13 17:35:04
【问题描述】：

据我所知，当我将对象声明为嵌套对象时，它创建了一个类似数组的结构来存储该对象类型的多个对象。这是映射 json 文件的示例。

{
    "employee": {
        "dynamic": "strict",
        "properties": {
            "id": {
                "type": "keyword"
            },
            "name": {
             "type": "keyword"
            },
            "previous_job_documents": {
                "type": "nested",
                "properties": {
                    "id": {
                        "type": "keyword"
                    },
                    "status": {
                        "type": "keyword"
                    },
                    "type": {
                        "type": "integer"
                    }
                   }
                  }
                }}}

从弹性中获取的示例数据。

  "data": {
    "nodes": {
      "totalCount": 465,
      "edges": [
        {
          "id": "b6ecb8aa-4d12-44d6-8ed7-9ee1003d0d54",
          "name": "test",
          "previous_job_documents": [
            {
              "type": "RELIEVING_LETTER",
              "status": "NOT_SUBMITTED"
            },
            {
              "type": "OFFER_LETTER",
              "status": "SUBMITTED"
            },
            {
              "type": "PAYSLIP_FIRST_MONTH",
              "status": "VERIFIED"
            },
            {
              "type": "PAYSLIP_SECOND_MONTH",
              "status": "NOT_SUBMITTED"
            },
            {
              "type": "PAYSLIP_THIRD_MONTH",
              "status": "NOT_SUBMITTED"
            }
          ]
        }
        ]
        }}}

问题：我想编写一个过滤器，它会找到所有名称为 test 且 RELIEVING_LETTER 为 NOT_SUBMITTED 且 OFFER_LETTER 为 SUBMITTED 的员工。

这是我在过滤器中尝试的：

{
  "filters": {
    "Employee": 
    {"AND": [{"name": "test"},
      {
        "path": "previous_job_documents"
        "AND": [
            {
              "term": {
                "previous_job_documents.type": {
                  "value": "RELIEVING_LETTER"
                }
              }
            },
            {
              "term": {
                "previous_job_documents.status": {
                  "value": "NOT_SUBMITTED"
                }
              }
            },


          {
              "term": {
                "previous_job_documents.type": {
                  "value": "OFFER_LETTER"
                }
              }
            },
            {
              "term": {
                "previous_job_documents.status": {
                  "value": "SUBMITTED"
                }
              }
            }
        ]
      }
        ]
    }
  }
}

【问题讨论】：

标签： elasticsearch graphql kibana

【解决方案1】：

您需要对匹配查询中的嵌套字段使用嵌套查询（因为嵌套字段将单独存储）。

 {
"query":{
"bool":{
"must":[
{
    "match":{"name":"user2"}
},    
{
        "nested":{
            "path": "previous_job_documents",
            "query":{
            "bool":{
                "must":[
                    {"match": {"previous_job_documents.type": "RELIEVING_LETTER"}},
                    {"match":{"previous_job_documents.status":"NOT_SUBMITTED"}}
                ]
            }
        }
    }
    },
    {
        "nested":{
            "path": "previous_job_documents",
            "query":{
            "bool":{
                "must":[
                    {"match": {"previous_job_documents.type": "OFFER_LETTER"}},
                    {"match":{"previous_job_documents.status":"SUBMITTED"}}
                ]
            }
        }
    }
}
]
}
}
}

【讨论】：