嵌套字段存在的 Elasticsearch 查询答案

【问题标题】：Elasticsearch query for nested field existence嵌套字段存在的 Elasticsearch 查询
【发布时间】：2020-09-04 08:25:00
【问题描述】：

我在 Elasticsearch 中保存了以下文档：

{
  "transactionGroup": [
    {
      "name": "Test123",
      "groups": [
        {
          "name": "Grp1",
          "groups": [
            {
              "name": "g1",
              "groups": [
                {
                  "name": "g11",
                  "columns": {
                    "cpm": {
                      "newValue": "0"
                    },
                    "imps": {
                      "newValue": "0"
                    }
                  }
                },
                {
                  "name": "g12",
                  "columns": {
                    "cpm": {
                      "newValue": "0"
                    },
                    "imps": {
                      "newValue": "0"
                    }
                  }
                }
              ],
              "columns": {
                "period": {
                  "newValue": "3Q"
                },
                "channelid": {
                  "newValue": "rQ"
                }
              }
            },
            {
              "name": "g2",
              "groups": [
                {
                  "name": "g21",
                  "columns": {
                    "cpm": {
                      "newValue": "0"
                    },
                    "imps": {
                      "newValue": "0"
                    }
                  }
                },
                {
                  "name": "g22",
                  "columns": {
                    "cpm": {
                      "newValue": "0"
                    },
                    "imps": {
                      "newValue": "0"
                    }
                  }
                }
              ],
              "columns": {
                "period": {
                  "newValue": "3Q"
                },
                "channelid": {
                  "newValue": "rQ"
                }
              }
            }            
          ],
          "columns": {
            "entityid": {
              "newValue": "3292"
            }
          }
        }
      ],
      "columns": {
        "lastmodifieddate": {
          "newValue": "2020-05-18 07:29:54"
        },
        "lastmodifiedby": {
          "newValue": "ajay"
        }
      }
    }
  ]
}

我想要以下查询。

如何执行exists 查询：

If a group having name="g1", nested name="g11" having column field "cpm.newvalue" ?

我正在尝试类似：

  "bool" : {
    "should" : [
      {
        "exists" : {
          "field" : "*transactionGroup.groups.groups.groups.columns.cpm.newValue",
          "boost" : 1.0
        }
      },

但它并非在所有情况下都有效。

这是映射：

{"unifiedplanner":{"_all":{"enabled":true,"norms":false},"properties":{"transactionGroup":{"properties":{"columns":{"properties":{"calendarid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"channel":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"class":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"createdby":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"createddate":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"dealyearid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"demo":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"enddate":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"endperiodid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"entityid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"equivalised":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"exceptions":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"exclusivity":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"fluidity":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"guaranteed":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"hiatus":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"lastmodifiedby":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"lastmodifieddate":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"oldValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"marketplaceid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"maxlineid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"ordertypeid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"periodbreakdown":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"planclassid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"planid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"planname":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"plannotes":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"platform":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"ratecard":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"ratingstreamid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"startdate":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"startperiodid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"type":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"version":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}}}},"groups":{"properties":{"columns":{"properties":{"$oid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"address":{"properties":{"newV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Value":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"self":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"separationtype":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"split":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"startdate":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"starttime":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"statusid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"oldValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"statusname":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"oldValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"subdivisionid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"subjecttooptiontotal":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"teamid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"title":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"username":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"version":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}}}},"groups":{"properties":{"columns":{"properties":{"$oid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"channelid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"channelname":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"class":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"cpm":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"createdby":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"createddate":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"daysinadvance":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"daysofweek":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"dollar":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"externalid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"externalsourcesystems":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"extsourceid":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"id":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"imps":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"lastmodifiedby":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"lastmodifieddate":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"oldValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"name":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"optionabledollar":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"optionablepercent":{"properties":{"newValue":{"type":"text","fields":{"keyword":{"type":"keyword","ignore_above":256}}},"type":{"type":"long"}}},"period":{"pr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【问题讨论】：

你能添加你的映射吗？
我更新了映射细节
所提到的 JSON 可能略有不同
在您的映射中，所有属性都有对象类型（平面结构化），这些都没有嵌套类型。如果数组中的任何对象具有字段，您是否要包含文档，或者您还想在其他字段上匹配数组中的对象，例如对象应该具有 name="g1"，嵌套 name="g11"
只是出于好奇，你为什么在这里有一个*？ "field" : "*tran... 我想警告您，exists 查询不支持通配符。

标签： elasticsearch

【解决方案1】：

首先，您需要决定将哪种类型分配给您的字段object 或nested。

示例如果您有一个包含名字和姓氏的数组

"users:[
        {
         "firstName":"a",
         "lastName":"b" 
        },
        {
         "firstName":"x",
         "lastName":"y" 
        }
]

在数组的字段之间不存在对象类型关系。假设如果您搜索名字为“a”且姓氏为“y”的用户。使用上述对象类型的文档将被返回（即使不存在这样的用户），因为对象不被视为单独的文档，您需要使用性能低于对象的嵌套类型。

如果您决定将我们的数组设为嵌套类型，则需要使用nested query 对其进行搜索

{
  "query": {
    "bool": {
      "filter": {
        "nested": {
          "path": "groups",
          "query": {
            "bool": {
              "must": [
                {
                  "term": {
                    "groups.name": {
                      "value": "grp1"
                    }
                  }
                },
                {
                  "nested": {
                    "path": "groups.groups",
                    "query": {
                      "exists": {
                       "field": "groups.groups.field1"--> full name needed(full heirerchy)
                      }
                    }
                  }
                }
              ]
            }
          }
        }
      }
    }
  }
}

【讨论】：