dptesta

curl -XDELETE localhost:9200/nested_aggs
curl -XPUT localhost:9200/nested_aggs
curl -XPUT localhost:9200/nested_aggs/user/_mapping -d '
{
    "_id" : {"index": "not_analyzed", "path" : "userId"},
    "properties": {
        "userId": {"type": "string", "index": "not_analyzed"},
        "groups": {
           "type": "nested",
           "properties": {