C# NEST ElastichSearch property store but not index

Question

I want the B field stored in Elasticsearch but never indexing. When I search for "Nash" I do not want to search within the B field. So the B field is not indexed in elastic.

    [ElasticsearchType(Name = "ES6")]
    public class ES6
    {
        public string A { get; set; }

        public string B { get; set; }
    }

    elasticClient.IndexDocument(new ES6 { A = "John", B = "Nash" });

    elasticClient.IndexDocument(new ES6 { A = "Nash", B = "John" });

Tim · Accepted Answer · 2018-10-23 13:19:55Z

1

If you want to have a field not be indexed you can use the NEST Attributes to show that the field should not be indexed.

https://www.elastic.co/guide/en/elasticsearch/client/net-api/current/attribute-mapping.html

In your example, it would probably be something like this:

[ElasticsearchType(Name = "ES6")]
public class ES6
{
    [Text]
    public string A { get; set; }

    [Keyword(Index = false)]
    public string B { get; set; }
}

Setting it to keyword will make sure it is not analyzed and setting Index = false will tell Elastic not to index it.

answered Oct 23, 2018 at 13:19

Tim

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