elasticsearch doc['...'] Arrays and order

Question

i need to access document values stored in arrays from script. The order of the items in the array is important.

using doc['...'] to retrieve the array will mix up the order :-(

suppose a simple document like this

{
    "ar":[5,4,3,2,1]
}

retrieved using this Query:

{
  "query":{
    "match_all":{}
  },
  "script_fields": {
    "values": {
      "script": {
        "inline":"return doc['ar']"
      }
    }
  }
}

will return the array in reversed(sorted) order: [1,2,3,4,5] is there a way to prevent this behavior?

i can not resort to using _source because i need this in a "has_child" query, which does not support _source.

any ideas?

What's your ElasticSearch version? I try it in my 2.3.3 version, the ar‘s values is in the reverse order, [5,4,3,2,1]. — Jimmy Zhang

dddd1919 dddd1919 · Accepted Answer · 2017-09-27T08:54:52

Need to know how Elasticsearch indexed an array field.