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