Elasticsearch sort not work in "es.query"

when set es.query to:

{
  "query" : {
    "bool" : {
      "filter" : {
        "range" : {
          "collectionTimestamp" : {
            "from" : "2016-01-04T00:00Z",
            "to" : "2016-01-04T00:00:10Z",
            "include_lower" : true,
            "include_upper" : true
          }
        }
      },
      "minimum_should_match" : "1"
    }
  },
  "sort" : [ {
    "vendor" : {
      "order" : "asc",
      "missing" : "_first"
    }
  } ]
}

the query partition works good but results are not ordered.

If order by spark, spark first get all elements and then sort them to get just 10 first elements and this is very slow if results are large. but if use elasticsearch sort, when spark gets 10 first elements, it finishes the work and return the results.

[ebuildy]

At least, an error could be thrown to indicate this is not supported.

[jbaiera]

Closing this since the conversation has slowed down and drifted from the original issue. The usage of sorting within an input split is a very niche use case and not one that we have on the immediate roadmap. If there is still reasonable push from the community for it then a new issue should be opened for the feature.