Question

我想对elasticsearch进行geo_point查询，但它对我来说不起作用。我总是得到geo_polygon查询的空结果。也许我的映射是错误的或我获取数据的方式。

映射：

 curl -XPUT 'localhost:9200/botanique_localisation/' -d '{
    "mappings":{
        "botanique_localisation" : {
            "_all" : {"enabled" : true},
            "_index" : {"enabled" : true},
            "_id" : {"index": "not_analyzed", "store" : false},
            "properties" : {
                "_id" : {"type" : "string", "store" : "no","index": "not_analyzed"  } ,
                "LOCATION" : { "type" : "geo_point","lat_lon" :true ,"validate":true  , "store":"yes" }             
            }
        }
    }
  }'

在oracle中创建视图

 create view all_specimens_localisation as select RAWTOHEX( SPECIMENS.occurrenceid ) as "_id" , 
 decode(LOCALISATIONS.decimalLatitude ||',' || LOCALISATIONS.decimalLongitude, ',', null ,
  '{"lat":' || replace(LOCALISATIONS.decimalLatitude,',' ,'.' ) ||',"lon":' || replace(LOCALISATIONS.decimalLongitude , ',' ,'.' ) || '}'
 ) as location 
 from SPECIMENS left outer join ... where rownum < 1000 ;

我在sql中创建了一个json对象，因为将lat_lon作为字符串发送并不适合我（弹性不要将字符串拆分为写http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/mapping-geo-point-type.html#_lat_lon_as_string_6）

创建从oracle到elasticsearch的河流

   curl -XPUT 'localhost:9200/_river/localisation_river/_meta' -d '{
      "type" : "jdbc",
      "jdbc" : {
        "index" : "botanique_localisation",
        "bulk_size" : 2000,
        "max_bulk_requests" : 10,
        "bulk_flush_interval" : "1s",
        "type" : "specimens",
        "url" : "********",
        "user" : "********",
        "password" : "********", 
        "sql" : "select * from all_specimens_localisation"
     }
}'

弹性研究中索引数据的例子

{
    _index: botanique_localisation
    _type: specimens
    _id: 38C8F872A449491C881791DE8B501B17
    _score: 1.4142135
    _source: {
        LOCATION: {
            lon: 47.05
            lat: -19.95
        }
    }
}

工作范围查询

       curl -XGET 'localhost:9200/botanique_localisation/specimens/_search?size=10&pretty' -d '
{ "query": {  "bool": { "must": [
    { "range": {
            "LOCATION.lon": {
                "from": 47.04,
                "to": 47.08
            }
        }
    },{ "range": {
            "LOCATION.lat": {
                "from": -20,
                "to": -19.90
            }
        }
    }
]}}}'

结果：

hits:{[
{    "_index": botanique_localisation,
    "_type": specimens,
    "_id": 38C8F872A449491C881791DE8B501B17,
    "_score": 1.4142135,
    "_source": {
        "LOCATION": { "lon": 47.05, "lat": -19.95 }
    }
},...

现在好玩的不工作了！使用geo_polygon查询：

curl -XGET 'localhost:9200/botanique_localisation/_search?size=10&pretty' -d '{
    "query":{
        "filtered" : {
            "query" : { "match_all" : {}},
            "filter" : {
                "geo_polygon" : {
                    "LOCATION" : {
                        "points" : [
                            { "lat": 100, "lon": -100},
                            { "lat": 100, "lon": 100},
                            { "lat": -100, "lon": 100 },
                            { "lat": -100 , "lon": -100 }                            
                        ]
                    }
                }
            }
        }
    }
}'

此返回没有命中！

我失踪了什么？谢谢

Answer 1

此查询工作：

    curl -XGET 'localhost:9200/botanique_localisation/_search?pretty' -d '{
        "query" : {
            "filtered" : {
                "filter" : {
                    "geo_bounding_box" : {
                        "type" : "indexed",
                        "LOCATION" : {
                            "top_left" : {
                                "lat" : 50,
                                "lon" : -50
                            },
                            "bottom_right" : {
                                "lat" :-50,
                                "lon" : 50
                            }
                        }
                    }
                }
            }
        } 
    }'

elasticsearch geo_point无法正常工作

1 个答案: