ElasticSearch 地理距离过滤器在数组中有多个位置 - 可能吗? [英] ElasticSearch geo distance filter with multiple locations in array - possible?
问题描述
假设我们在 ElasticSearch 索引中有一堆文档.每个文档有多个位置在一个数组中,像这样:
Let's say we have a bunch of documents in an ElasticSearch index. Each documents has multiple locations in an array, like this:
{
"name": "foobar",
"locations": [
{
"lat": 40.708519,
"lon": -74.003212
},
{
"lat": 39.752609,
"lon": -104.998100
},
{
"lat": 51.506321,
"lon": -0.127140
}
]
}
geo_distance
过滤器可以处理多个位置/点每个文件.一旦单个位置/点与过滤器匹配,文档将包含在过滤器中.
the
geo_distance
filter can work with multiple locations / points per document. Once a single location / point matches the filter, the document will be included in the filter.
那么,是否可以创建一个地理距离过滤器来检查数组中的所有位置?
So, is it possible to create a geo distance filter which checks all the locations in the array?
不幸的是,这似乎不起作用:
This doesn't seem to work, unfortunately:
{
"filter": {
"geo_distance": {
"distance": "100 km",
"locations": "40, -105"
}
}
}
throws "QueryParsingException[[myIndex] failed to find geo_point field [locations]
" 因为 locations
不是单个 geo_point
而是一个数组geo_point
s.
throws "QueryParsingException[[myIndex] failed to find geo_point field [locations]
" since locations
is not a single geo_point
but an array of geo_point
s.
推荐答案
您是否指定了 geo_point 映射为您的文档?
Did you specify a geo_point mapping for your document?
curl -XDELETE 'http://localhost:9200/twitter/'
curl -XPUT 'http://localhost:9200/twitter/'
curl -XPUT 'http://localhost:9200/twitter/tweet/_mapping' -d '
{
"tweet" : {
"properties" : {
"locations" : {"type" : "geo_point"}
}
}
}'
curl -XPUT 'http://localhost:9200/twitter/tweet/1' -d '
{
"user": "kimchy",
"postDate": "2009-11-15T13:12:00",
"message": "Trying out Elastic Search, so far so good?",
"locations" : [{
"lat" : 50.00,
"lon" : 10.00
},
{
"lat" : 40.00,
"lon" : 9.00
}]
}'
curl -XPUT 'http://localhost:9200/twitter/tweet/2' -d '
{
"user": "kimchy",
"postDate": "2009-11-15T13:12:00",
"message": "Trying out Elastic Search, so far so good?",
"locations" : [{
"lat" : 30.00,
"lon" : 8.00
},
{
"lat" : 20.00,
"lon" : 7.00
}]
}'
curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d '{
"query": {
"filtered" : {
"query" : {
"match_all" : {}
},
"filter" : {
"geo_distance" : {
"distance" : "20km",
"tweet.locations" : {
"lat" : 40.00,
"lon" : 9.00
}
}
}
}
}
}'
这篇关于ElasticSearch 地理距离过滤器在数组中有多个位置 - 可能吗?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!