查询elasticsearch中的访问字段文档

Question

例如，假设我们有这样的映射：

{
    "location":{
        "dynamic":"false",
        "properties":{
            "locality":{"type":"text"},
            "country":{"type":"text"},
            "postalCode":{"type":"text"},
            "coordinates":{"type":"geo_point"},
            "radius":{"type":"double"}
        }
    }
}

这是我的疑问：

GET index_name/location/_search
{
    "query": {
        "bool": {
            "filter": {
                "geo_distance": {
                    "coordinates": [
                        2.352222, 
                        48.999
                    ],
                    "distance": $radius <--- *(here I want to access the
                                               value of radius in document)*
                 }
            }
        }
    }
}

在Elasticsearch查询中是否存在访问字段文档值的意思？

使用脚本查询是否可行？ doc here

Answer 1

是的，实际上脚本查询可以解决问题：

GET index_name/location/_search
{
    "query": {
        "bool": {
            "must": [
                {
                    "script": {
                        "script": {
                            "inline": "doc['coordinates'].planeDistance(48.856614 , 2.37959999) <= doc['radius'].value",
                            "lang": "painless"
                        }
                    }
                 }
            ]
        }
    }
}

谢谢