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elasticsearchsearchelastic-stackelasticsearch-dsl

Elasticsearch - Relevancy of search terms

How do you tell Elasticsearch that one full text field should be less relevant than other full text fields?

Suppose I have:

"query": {
            "bool": {
                "must": {
                    "query_string": {
                        "fields": ["my_id", "title^2", "intro", "body1", "body2", "body3", "footer"],
                        "default_operator": "AND",
                        "query": "some search query"
                    }
                }
            }
}

I want footer to be treated as less relevant than the others. What is the best approach to that?

Thanks

Solution

  • A boost value between 0 and 1.0 decreases the relevance score. So for example:

    {
  "query": {
    "bool": {
      "must": {
        "query_string": {
          "fields": [
            ...
            "footer^0.5"
          ],
          ...
        }
      }
    }
  }
}

    should do the trick.