gistfile1.eclass

curl -XPUT localhost:9200/test -d '{
    "mappings" : {
        "child" : {
            "_parent" : {
                "type" : "parent"
            }
        }
    }
}'

curl -XPUT localhost:9200/test/parent/1 -d '{
    "p_field" : "pvalue"
}'

curl -XPUT localhost:9200/test/child/1?parent=1 -d '{
    "c_field" : "cvalue"
}'

curl -XPOST localhost:9200/_refresh

curl localhost:9200/test/_search?pretty=true -d '{
    "query" : {
        "constant_score" : {
            "filter" : {
                "has_child" : {
                    "type" : "child",
                    "query" : {
                        "term" : {
                            "c_field" : "cvalue"
                        }
                    }
                }
            }
        }
    }
}'

curl localhost:9200/test/parent/_search?pretty=true -d '{
    "query" : {
        "match_all" : {}
    },
    "facets" : {
        "facet1" : {
            "filter" : {
                "has_child" : {
                    "type" : "child",
                    "query" : {
                        "term" : {
                            "c_field" : "cvalue"
                        }
                    }
                }
            }
        }
    }
}'