Elasticsearch array field is sorted when accessed within Painless scripting language

Question

I have an integer array field, for example, my_integer_array.

I stored [3, 4, 1, 2] on the field via client and I can see that [3, 4, 1, 2] is successfully set on the document's my_integer_array field via Kibana.

But whenever I try to access the field in Painless Elasticsearch scripting language, e.g. doc['my_integer_array'], it returns [1, 2, 3, 4], not [3, 4, 1, 2]. Accessing it's element via doc['my_integer_array'][0] returns 1, not 3.

It seems like Painless provides sorted version of the field's data rather than the original array itself. Am I missing something? Can I disable this behavior and preserve the order?

P.S. I'm using elasticsearch-dsl-py Elasticsearch Python DSL library as an Elasticsearch client.

I think this so answer can give you some insights => stackoverflow.com/a/43836510/2119685 — blacatus
– blacatus, Commented Jun 2, 2017 at 9:57

Holger Will · Accepted Answer · 2017-06-27 20:53:58Z

2

You can access the array setting _source:true and then using params._source['my_integer_array'] this way the array will be unsorted in its original state.

answered Jun 27, 2017 at 20:53

Holger Will

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