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Elastic Docs ›Elasticsearch Guide [8.15] ›Query DSL ›Compound queries

Constant score query

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Constant score query

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Wraps a filter query and returns every matching document with a relevance score equal to the boost parameter value.

resp = client.search(
    query={
        "constant_score": {
            "filter": {
                "term": {
                    "user.id": "kimchy"
                }
            },
            "boost": 1.2
        }
    },
)
print(resp)
response = client.search(
  body: {
    query: {
      constant_score: {
        filter: {
          term: {
            'user.id' => 'kimchy'
          }
        },
        boost: 1.2
      }
    }
  }
)
puts response
const response = await client.search({
  query: {
    constant_score: {
      filter: {
        term: {
          "user.id": "kimchy",
        },
      },
      boost: 1.2,
    },
  },
});
console.log(response);
GET /_search
{
  "query": {
    "constant_score": {
      "filter": {
        "term": { "user.id": "kimchy" }
      },
      "boost": 1.2
    }
  }
}

Top-level parameters for constant_score

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filter

(Required, query object) Filter query you wish to run. Any returned documents must match this query.

Filter queries do not calculate relevance scores. To speed up performance, Elasticsearch automatically caches frequently used filter queries.

boost
(Optional, float) Floating point number used as the constant relevance score for every document matching the filter query. Defaults to 1.0.
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