在Elasticsearch距离脚本中访问嵌套属性。

我在elasticsearch中的索引具有以下映射:

"couchbaseDocument": {

"properties": {

"doc": {

"properties": {

"properties": {

"properties": {

"location": {

"type": "geo_point"

源文档如下:

{"properties" : {"location":"43.706596,-79.4030464"}}

我正在尝试使用距离脚本来基于地理点计算距离。我在elasticsearch结果中发现了该帖子的Return

distance吗?帮我 我正在尝试获取所有结果,按半径1km进行过滤,获取距离,然后对geo_point进行排序。查询的结构如下:

{

"query": {

"match_all": {}

},

"filter": {

"geo_distance": {

"distance": "1km",

"doc.properties.location": {

"lat": 43.710323,

"lon": -79.395284

}

}

},

"script_fields": {

"distancePLANE": {

"params": {

"lat": 43.710323,

"lon": -79.395284

},

"script": "doc[properties]['location'].distanceInKm(lat, lon)"

},

"distanceARC" :{

"params": {

"lat": 43.710323,

"lon": -79.395284

},

"script": "doc[properties]['location'].arcDistanceInKm(lat,lon)"

}

},

"sort": [

{

"_geo_distance":{

"doc.properties.location": [-79.395284,43.710323],

"order": "desc",

"unit": "km"

}

}

],

"track_scores": true

}

我收到状态为500的以下错误:

"PropertyAccessException[[Error: could not access: properties; in class: org.elasticsearch.search.lookup.DocLookup]\n[Near : {... doc[properties]['location'].distan ....}]\n                 ^\n[Line: 1, Column: 5]]"

我尝试以这种方式重写查询:

..."script": "doc['properties']['location'].arcDistanceInKm(lat,lon)"...

然后我得到这个错误:

"CompileException[[Error: No field found for [properties] in mapping with types [couchbaseDocument]]\n[Near : {... doc['properties']['location']. ....}]\n             ^\n[Line: 1, Column: 1]]; nested: ElasticSearchIllegalArgumentException[No field found for [properties] in mapping with types [couchbaseDocument]]; "

当我从查询中一起删除脚本部分时,排序和过滤工作正常。使用脚本时是否有其他方法来访问嵌套字段?任何见解将不胜感激!

谢谢!

回答:

如我的评论中所述,当您按_geo_distance排序时,返回的“

_sort”字段是实际距离。因此,无需进行单独的计算。此处的详细信息:http : //elasticsearch-users.115913.n3.nabble.com/search-

by-distance-and-getting-the-actual-distance-

td3317140.html#a3936224

以上是 在Elasticsearch距离脚本中访问嵌套属性。 的全部内容, 来源链接: utcz.com/qa/424595.html

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