Match-only text field type

A variant of text that trades scoring and efficiency of positional queries for space efficiency. This field effectively stores data the same way as a text field that only indexes documents (index_options: docs) and disables norms (norms: false). Term queries perform as fast if not faster as on text fields, however queries that need positions such as the match_phrase query perform slower as they need to look at the _source document to verify whether a phrase matches. All queries return constant scores that are equal to 1.0.

Analysis is not configurable: text is always analyzed with the default analyzer (standard by default).

span queries are not supported with this field, use interval queries instead, or the text field type if you absolutely need span queries.

Other than that, match_only_text supports the same queries as text. And like text, it does not support sorting and has only limited support for aggregations.

PUT logs
{
  "mappings": {
    "properties": {
      "@timestamp": {
        "type": "date"
      },
      "message": {
        "type": "match_only_text"
      }
    }
  }
}

The following mapping parameters are accepted:

doc_values Stack 9.5+ The Elastic Stack includes Elastic's core products such as Elasticsearch, Kibana, Logstash, and Beats. Availability Generally available since 9.5 This functionality is generally available and ready for production usage. Unless stated otherwise on the page, this functionality is available when your Elastic Stack is deployed on Elastic Cloud Hosted, Elastic Cloud Enterprise, Elastic Cloud on Kubernetes, and self-managed environments. This documentation corresponds to the latest patch available for each minor version. If you're not using the latest patch, check the release notes for changes. Serverless Elastic Cloud Serverless projects are autoscaled environments, fully managed by Elastic and available on Elastic Cloud. Availability Generally available This functionality is generally available and ready for production usage. Serverless interfaces and procedures might differ from classic Elastic Stack deployments.

Whether the field's values should be stored in doc values for retrieval and ES|QL queries. Accepts true or false (default). Unlike most field types, match_only_text doc values do not support sorting or aggregation.

fields

Multi-fields allow the same string value to be indexed in multiple ways for different purposes, such as one field for search and a multi-field for sorting and aggregations, or the same string value analyzed by different analyzers.

meta

Metadata about the field.