[
   {
      "name":"A",
      "score":2
   },
   {
      "name":"b",
      "score":2
   },
   {
      "name":"b",
      "score":1
   },
 {
      "name":"c",
      "score":1
   }
]

can i sort on score on groupBy query so the result looks like this group_key " b" : score (2+1) , "a" : score(2) , "c": score(1) @Kishore Nallan