如何在Elasticsearch结果中返回geo_point的geohash？

Question

如何在Elasticsearch结果中返回geo_point的geohash？

例如，位置字段是lat / lon值。如何在结果中添加此字段的geohash？

Answer 1

您需要在查询中添加fielddata_fields，如下所示：

POST /index/_search
{
  "query": {
    "match_all": {}
  },
  "fielddata_fields": [
    "location.geohash"
  ]
}

你会得到这样的东西，_source和fielddata_fields中的地理位置

{
  "hits": {
    "total": 1,
    "max_score": 1,
    "hits": [
      {
        "_index": "test",
        "_type": "test",
        "_id": "1",
        "_score": 1,
        "_source": {
          "location": "13.0009316,77.5947316"
        },
        "fields": {
          "location.geohash": [
            "t",
            "td",
            "tdr",
            "tdr1",
            "tdr1v",
            "tdr1vw",
            "tdr1vww",
            "tdr1vwwz",
            "tdr1vwwzb",
            "tdr1vwwzbm"
          ]
        }
      }
    ]
  }
}