Nested Filter

A nested filter, works in a similar fashion to the nested query, except used as a filter. It follows exactly the same structure, but also allows to cache the results (set _cache to true), and have it named (set the _name value). For example:

{
    "filtered" : {
        "query" : { "match_all" : {} },
        "filter" : {
            "nested" : {
                "path" : "obj1",
                "query" : {
                    "bool" : {
                        "must" : [
                            {
                                "text" : {"obj1.name" : "blue"}
                            },
                            {
                                "range" : {"obj1.count" : {"gt" : 5}}
                            }
                        ]
                    }
                },
                "_cache" : true
            }
        }
    }
}