documents.yaml

_type: parent
_id: 1
name: Ned

---
_type: child
_parent: 1
_id: 2
name: Arya

mappings.yaml

child:
    _parent: 
        type: parent

play.sh

#!/bin/bash

export ELASTICSEARCH_ENDPOINT="http://localhost:9200"

# Create indexes

curl -XPUT "$ELASTICSEARCH_ENDPOINT/play" -d '{
    "mappings": {
        "child": {
            "_parent": {
                "type": "parent"
            }
        }
    }
}'

# Index documents
curl -XPOST "$ELASTICSEARCH_ENDPOINT/_bulk?refresh=true" -d '
{"index":{"_index":"play","_type":"parent","_id":1}}
{"name":"Ned"}
{"index":{"_index":"play","_type":"child","_parent":1,"_id":2}}
{"name":"Arya"}
'

# Do searches

curl -XPOST "$ELASTICSEARCH_ENDPOINT/_search?pretty" -d '
{
    "query": {
        "has_parent": {
            "parent_type": "parent",
            "query": {
                "match_all": {}
            }
        }
    }
}
'

play.yaml

# Auto generated by Found's Play-tool at 2014-07-08T23:48:32+02:00
version: 0
title: "Parent/Child-test"
description: ""

searches.yaml

query: 
    has_parent: 
        parent_type: parent
        query: 
            match_all: {}