Geo Polygon Filter - gnuhub/elasticsearch GitHub Wiki
A filter allowing to include hits that only fall within a polygon of points. Here is an example:
{
"filtered" : {
"query" : {
"match_all" : {}
},
"filter" : {
"geo_polygon" : {
"person.location" : {
"points" : [
{"lat" : 40, "lon" : -70},
{"lat" : 30, "lon" : -80},
{"lat" : 20, "lon" : -90}
]
}
}
}
}
}{
"filtered" : {
"query" : {
"match_all" : {}
},
"filter" : {
"geo_polygon" : {
"person.location" : {
"points" : [
[40, -70],
[30, -80],
[20, -90]
]
}
}
}
}
}{
"filtered" : {
"query" : {
"match_all" : {}
},
"filter" : {
"geo_polygon" : {
"person.location" : {
"points" : [
"40, -70",
"30, -80",
"20, -90"
]
}
}
}
}
}{
"filtered" : {
"query" : {
"match_all" : {}
},
"filter" : {
"geo_polygon" : {
"person.location" : {
"points" : [
"drn5x1g8cu2y",
"30, -80",
"20, -90"
]
}
}
}
}
}The filter requires the geo_point type to be set on the relevant field.
The result of the filter is not cached by default. The _cache can be set to true to cache the result of the filter. This is handy when the same points parameters are used on several (many) other queries. Note, the process of caching the first execution is higher when caching (since it needs to satisfy different queries).