多边形查询 geo_polygon

查找地理点位于指定多边形的文档。

简单样例

GET /_search
{
    "query": {
        "bool" : {
            "must" : {
                "match_all" : {}
            },
            "filter" : {
                "geo_polygon" : {
                    "person.location" : {
                        "points" : [
                            {"lat" : 40, "lon" : -70},
                            {"lat" : 30, "lon" : -80},
                            {"lat" : 20, "lon" : -90}
                        ]
                    }
                }
            }
        }
    }
}

查询格式

1. 数组方式

GET /_search
{
    "query": {
        "bool" : {
            "must" : {
                "match_all" : {}
            },
            "filter" : {
                "geo_polygon" : {
                    "person.location" : {
                        "points" : [
                            [-70, 40],
                            [-80, 30],
                            [-90, 20]
                        ]
                    }
                }
            }
        }
    }
}

2. 字符串方式

GET /_search
{
    "query": {
        "bool" : {
            "must" : {
                "match_all" : {}
            },
            "filter" : {
               "geo_polygon" : {
                    "person.location" : {
                        "points" : [
                            "40, -70",
                            "30, -80",
                            "20, -90"
                        ]
                    }
                }
            }
        }
    }
}

3. Geohash

GET /_search
{
    "query": {
        "bool" : {
            "must" : {
                "match_all" : {}
            },
            "filter" : {
               "geo_polygon" : {
                    "person.location" : {
                        "points" : [
                            "drn5x1g8cu2y",
                            "30, -80",
                            "20, -90"
                        ]
                    }
                }
            }
        }
    }
}

参数说明

Ignore Unmapped

在查询具有不同mapping的多个索引时，ignore_unmapped 选项将忽略未映射的字段。当设置为 false（默认值）时，如果字段未映射，查询将抛出异常。