Add a sorting section to the pinned query

Author: SerethiX

docs/reference/query-dsl/pinned-query.asciidoc

@@ -78,3 +78,33 @@ GET /_search
 
 <1> The document with id `1` from `my-index-000001` will be the first result.
 <2> When `_index` is missing, all documents with id `4` from the queried indices will be pinned with the same score.
+
+==== Sorting
+
+The `pinned` query internally uses the calculated relevance to pin the requested documents to the top of the results set.
+
+As soon any sorting is involved, the pinned query will be have no effect.
+
+[source,console]
+--------------------------------------------------
+POST /_search
+{
+ "sort": [
+   {
+     "price": {
+       "order": "desc"
+     }
+   }
+ ],
+ "query": {
+   "pinned": {
+     "ids": [ "1", "4"],
+     "organic": {
+       "match": {
+         "description": "iphone"
+       }
+     }
+   }
+ }
+}
+--------------------------------------------------