Elasticsearch地理位置搜索不返回里程单位的结果

Question

我正在使用elasticsearch在用户位置附近返回商家。

如果我以距离单位公里的距离搜索＆＃39; km＆＃39;我得到了预期的结果，但如果我使用里程数＆＃39; m＆＃39;它返回0次点击

带命中的km请求示例

{
  "sort" : [
      {
          "_geo_distance" : {
              "location" : {
                    "lon": -0.11454850000000001,
                    "lat": 51.4911665
              }, 
              "order" : "asc",
              "unit" : "km"
          }
      }
  ],
  "query": {
    "filtered" : {
        "query" : {
            "match_all" : {}
        },
        "filter" : {
            "geo_distance" : {
                "distance" : "1km",
                "location" : {
                    "lon": -0.11454850000000001,
                    "lat": 51.4911665
                }
            }
        }
    }
  }
}

1km = 0.6英里所以此查询应返回与上述相同数量的结果，但返回0

{
  "sort" : [
      {
          "_geo_distance" : {
              "location" : {
                    "lon": -0.11454850000000001,
                    "lat": 51.4911665
              }, 
              "order" : "asc",
              "unit" : "m"
          }
      }
  ],
  "query": {
    "filtered" : {
        "query" : {
            "match_all" : {}
        },
        "filter" : {
            "geo_distance" : {
                "distance" : "1m",
                "location" : {
                    "lon": -0.11454850000000001,
                    "lat": 51.4911665
                }
            }
        }
    }
  }
}

为什么会出现这种情况？

Answer 1

您只需使用correct distance unit：m表示米，而您需要使用mi

{
  "sort" : [
      {
          "_geo_distance" : {
              "location" : {
                    "lon": -0.11454850000000001,
                    "lat": 51.4911665
              }, 
              "order" : "asc",
              "unit" : "mi"                     <--- here
          }
      }
  ],
  "query": {
    "filtered" : {
        "query" : {
            "match_all" : {}
        },
        "filter" : {
            "geo_distance" : {
                "distance" : "1mi",             <--- here
                "location" : {
                    "lon": -0.11454850000000001,
                    "lat": 51.4911665
                }
            }
        }
    }
  }
}