如何在Elasticsearch中对高度进行范围搜索

问题描述

如何在Elasticsearch中表示Height和HeightRange，以便更轻松地进行范围搜索

Height.java: int feet,int inches;
HeightRange.java: Height from,Height to

我要搜索范围在一定范围内（例如5英尺-6英尺）的用户

解决方法

如果我很了解您的问题，则可以使用范围查询，如下所示。我进行了如下本地测试，并提取了以下数据：

"hits" : [
  {
    "_index" : "height-index-array","_type" : "_doc","_id" : "OfCHdXUB1QlsTOLdRJgd","_score" : 1.0,"_source" : {
      "user" : "user1","height" : {
        "feet" : 5,"inch" : 8
      }
    }
  },{
    "_index" : "height-index-array","_id" : "CfCJdXUB1QlsTOLdEZxS","_source" : {
      "user" : "user2","height" : {
        "feet" : 7,"inch" : 9
      }
    }
  },"_id" : "CvCJdXUB1QlsTOLdEpx5","_source" : {
      "user" : "user3","inch" : 6
      }
    }
  },"_id" : "C_CJdXUB1QlsTOLdE5yk","_source" : {
      "user" : "user4","_id" : "T_CJdXUB1QlsTOLdFZwx","_source" : {
      "user" : "user5","height" : {
        "feet" : 2,"inch" : 3
      }
    }
  }
]

我以前在5到6之间查询height中的feet的查询：

"query": {
    "range": {
    "height.feet": {
        "gte": 5,"lte": 6
    }
    }
} 

gte等效于greater than or equal to，lte等效于less than or equal to。

结果是：

"hits" : {
    "total" : {
    "value" : 3,"relation" : "eq"
    },"max_score" : 1.0,"hits" : [
    {
        "_index" : "height-index-array","_source" : {
        "user" : "user1","height" : {
            "feet" : 5,"inch" : 8
        }
        }
    },{
        "_index" : "height-index-array","_source" : {
        "user" : "user3","inch" : 6
        }
        }
    },"_source" : {
        "user" : "user4","inch" : 8
        }
        }
    }
    ]
}

让我知道您是否有任何问题，我们将很乐意为您提供帮助：）

根据您的请求，如果您需要结合两个指标，则可以使用布尔查询：

"query": {
    "bool": {
    "must": [
        {
        "range": {
            "height.feet": {
            "gte": 5,"lte": 6
            }
        }
        },{
        "range": {
            "height.inch": {
            "gte": 6,"lte": 8
            }
        }
        }
    ]
    }
}

响应：

"hits" : [
  {
    "_index" : "height-index-array","_score" : 2.0,"inch" : 8
      }
    }
  }
]

链接： https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-range-query.html https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-bool-query.html