CODEWITHSUNDEEP
c#elasticsearchnest
Jose Ramirez
Jose Ramirez

Reputation: 401

id field inside object, NEST for elasticsearch

So, I have an object with an Id field; when I index it, the resulting document has the _source.id field as expected, but the _id field has the same value as _source.id.

For instance, I have this object:

var obj = new Obj {
    ...
    Id = 'some_value',
    ...
};

After indexing, I see that the ES document is like so:

{
    ...
    "_id: "some_value",
    ...
    "_source" : {
        ...
        "id" : "some_value",
        ...
    }
}

The question is: is it possible to somehow disable this behavior? like, how can I let Elasticsearch generate the value for _id (if possible)?

Upvotes: 1

Views: 1516

Answers (1)

Russ Cam
Russ Cam

Reputation: 125508

This is a feature known as Id inference. If you would prefer NEST not do it, I would recommend either

  • Renaming your Id property on the POCO to something else
  • Attribute the POCO with ElasticsearchType and assign a non-existent property name to IdProperty
[ElasticsearchType(IdProperty = "do_not_infer_id")]
public class MyDocument
{
    public int Id { get; set; }
}

Upvotes: 3

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