Elasticsearch - Is it possible to perform a spatial join in a query?

Question

I would like to perform a spatial join as you would do in PostGIS. So far I have explored the various ways outlined with Geo-shape query, but they only were possible by using a single shape or by accessing a shape in a different index by id like here:

GET /gdelt/_search
{
    "query": {
        "bool": {
            "filter": {
                "geo_shape": {
                    "location": {
                        "indexed_shape": {
                            "index": "ne_countries",
                            "id": "0bnrXnMB0RPtPof-zD-F",
                            "path": "geometry"
                        }
                    }
                }
            }
        }
    }
}

Is there a way to spatially join an index with geo_point documents with another or the same index with geo_shape documents?