class Elasticsearch::DSL::Search::Aggregations::Missing

A single bucket aggregation that creates a bucket of all documents which are missing a value for the field

@example Passing the options as a Hash

aggregation :articles_without_tags do
  missing field: 'tags'
end

@example Passing the options as a block

search do
  aggregation :articles_without_tags do
    missing do
      field 'tags'
    end
  end
end

@see www.elastic.co/guide/en/elasticsearch/reference/master/search-aggregations-bucket-missing-aggregation.html