Searching answers based on a criteria of questions

Let's now try to find the parents by querying against the child docs, which is the reverse of what we did in the previous section. Take a look at this query:

curl -XPOST localhost:9200/posts/rating/_search?pretty=true -d '{
  "query": {
    "filtered": {
      "query": {"match_all": {}},
      "filter": {
        "and": [
          {"term": {"accepted": yes}},
          {
            "has_parent": {
              "type": "post",
              "query": {
                "term": {"question": " Queries vs. Filters "}
              }
            }
          }
        ]
      }
    }
  },
  "sort": [
    { "rating" : {"order" : "desc"} }
  ]
}'

Here, we get all the ratings whose question contains the term Queries vs. Filters in a descending order.