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Exists Query

An exists query returns documents that contain an indexed value for a specified field. This query is useful for checking if a document contains a specific field.

Example

import (
    es "github.com/elastic/go-elasticsearch/v8"

    "github.com/sdqri/effdsl/v2"
    eq "github.com/sdqri/effdsl/v2/queries/existsquery"
)

query, err := effdsl.Define(
    effdsl.WithQuery(
        eq.ExistsQuery("field_name"),
    ),
)

res, err := es.Search(
    es.Search.WithBody(strings.NewReader(query)),
)

Parameters

  • Field (string)
    (Required, positional) The field you wish to search. This is a required parameter.

Additional Information

For more details on the exists query and its parameters, refer to the official Elasticsearch documentation on exists queries.