IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
« IDs Range query »
Elastic Docs ›Elasticsearch Guide [7.5] ›Query DSL ›Term-level queries

Prefix query

edit
IMPORTANT: This documentation is no longer updated. Refer to Elastic's version policy and the latest documentation.

Prefix query

edit

Returns documents that contain a specific prefix in a provided field.

Example request

edit

The following search returns documents where the user field contains a term that begins with ki.

GET /_search
{
    "query": {
        "prefix": {
            "user": {
                "value": "ki"
            }
        }
    }
}

Top-level parameters for prefix

edit
<field>
(Required, object) Field you wish to search.

Parameters for <field>

edit
value
(Required, string) Beginning characters of terms you wish to find in the provided <field>.
rewrite
(Optional, string) Method used to rewrite the query. For valid values and more information, see the rewrite parameter.

Notes

edit

Short request example

edit

You can simplify the prefix query syntax by combining the <field> and value parameters. For example:

GET /_search
{
    "query": {
        "prefix" : { "user" : "ki" }
    }
}

Speed up prefix queries

edit

You can speed up prefix queries using the index_prefixes mapping parameter. If enabled, Elasticsearch indexes prefixes between 2 and 5 characters in a separate field. This lets Elasticsearch run prefix queries more efficiently at the cost of a larger index.

« IDs Range query »