Elasticsearch——Geo-distance查询

在距某个geopoint的给定距离内匹配“geo_point”和“geo_shape”值。

例如：

假设以下文档已编制索引：

PUT /my_locations
{"mappings": {"properties": {"pin": {"properties": {"location": {"type": "geo_point"}}}}}
}PUT /my_locations/_doc/1
{"pin": {"location": {"lat": 40.12,"lon": -71.34}}
}PUT /my_geoshapes
{"mappings": {"properties": {"pin": {"properties": {"location": {"type": "geo_shape"}}}}}
}PUT /my_geoshapes/_doc/1
{"pin": {"location": {"type" : "polygon","coordinates" : [[[13.0 ,51.5], [15.0, 51.5], [15.0, 54.0], [13.0, 54.0], [13.0 ,51.5]]]}}
}

使用geo_distance过滤器匹配另一个geopoint指定距离内的geo_point值：

GET /my_locations/_search
{"query": {"bool": {"must": {"match_all": {}},"filter": {"geo_distance": {"distance": "200km","pin.location": {"lat": 40,"lon": -70}}}}}
}

使用相同的过滤器匹配给定距离内的geo_shape：

GET my_geoshapes/_search
{"query": {"bool": {"must": {"match_all": {}},"filter": {"geo_distance": {"distance": "200km","pin.location": {"lat": 40,"lon": -70}}}}}
}

要同时匹配geo_point和geo_shape值，请搜索两个索引：

GET my_locations,my_geoshapes/_search
{"query": {"bool": {"must": {"match_all": {}},"filter": {"geo_distance": {"distance": "200km","pin.location": {"lat": 40,"lon": -70}}}}}
}

Accepted Formats

与geo_point类型大致相同,可以接受geo point的不同表示方式，过滤器也可以接受它：

Lat Lon As Properties

GET /my_locations/_search
{"query": {"bool": {"must": {"match_all": {}},"filter": {"geo_distance": {"distance": "12km","pin.location": {"lat": 40,"lon": -70}}}}}
}

Lat Lon As Array

[lon，lat]格式，注意，此处lon/lat的顺序，以符合GeoJSON。

GET /my_locations/_search
{"query": {"bool": {"must": {"match_all": {}},"filter": {"geo_distance": {"distance": "12km","pin.location": [ -70, 40 ]}}}}
}

Lat Lon As String

格式为lat，lon。

GET /my_locations/_search
{"query": {"bool": {"must": {"match_all": {}},"filter": {"geo_distance": {"distance": "12km","pin.location": "40,-70"}}}}
}

Geohash

GET /my_locations/_search
{"query": {"bool": {"must": {"match_all": {}},"filter": {"geo_distance": {"distance": "12km","pin.location": "drm3btev3e86"}}}}
}

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Elasticsearch——Geo-distance查询

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