CODEWITHSUNDEEP
elasticsearch
Denisa Corbu
Denisa Corbu

Reputation: 301

Multi match doesnt work with constant score

I am trying to disable TF/IDF using constant_score for a multi_match query.

GET cities/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "constant_score": {
            "query": {
              "multi_match": {
                "query": "new york",
                "fields": [
                 "city",
                 "village"
                ]
              }
            }
          }
        }
      ]
    }
  }
}

but i got the following error:

 "reason": "[constant_score] query does not support [query]".

I also tried without using the query wrapper

GET cities/_search
    {
      "query": {
        "bool": {
          "must": [
            {
              "constant_score": {
                  "multi_match": {
                    "query": "new york",
                    "fields": [
                     "city",
                     "village"
                    ]
                  }
              }
            }
          ]
        }
      }
    }

But i got the following error :

"[constant_score] query does not support [multi_match]".

Is there a workaround to use them together?

Upvotes: 1

Views: 1305

Answers (1)

Hooman Bahreini
Hooman Bahreini

Reputation: 15579

I am no expert in elasticsearch, but reading this documentation

constant_score query

A query which wraps another query, but executes it in filter context. All matching documents are given the same “constant” _score.

I believe you need something like this:

GET cities/_search
{
  "query": {
    "constant_score": {
      "filter": {
        "multi_match": {
          "query": "new york",
          "fields": [
            "city",
            "village"
          ]
        }
      }
    }
  }
}

Upvotes: 1

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