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Elastic Docs ›Elasticsearch Guide [7.11] ›Query DSL ›Specialized queries

Script query

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Script query

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Filters documents based on a provided script. The script query is typically used in a filter context.

Using scripts can result in slower search speeds. See Scripts and search speed.

Example request

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GET /_search
{
  "query": {
    "bool": {
      "filter": {
        "script": {
          "script": {
            "source": "doc['num1'].value > 1",
            "lang": "painless"
          }
        }
      }
    }
  }
}

Top-level parameters for script

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script
(Required, script object) Contains a script to run as a query. This script must return a boolean value, true or false.

Notes

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Custom Parameters

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Like filters, scripts are cached for faster execution. If you frequently change the arguments of a script, we recommend you store them in the script’s params parameter. For example:

GET /_search
{
  "query": {
    "bool": {
      "filter": {
        "script": {
          "script": {
            "source": "doc['num1'].value > params.param1",
            "lang": "painless",
            "params": {
              "param1": 5
            }
          }
        }
      }
    }
  }
}

Allow expensive queries

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Script queries will not be executed if search.allow_expensive_queries is set to false.

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