Brand aggregation

brands.rb

module Workarea
  module Search
    class Brands
      include ProductDisplayRules

      def all_results
        buckets = Array.wrap(response.dig('aggregations', 'all_brands', 'buckets'))
        buckets.map { |b| b['key'] }
      end

      def response
        @response ||= Search::Storefront.search(
          query: { bool: { must: product_display_query_clauses } },
          aggs: { 'all_brands' => { terms: { field: 'facets.brand', size: 99999 } } }
        )
      end
    end
  end
end

so is this aggregation is applied on complete product list which is available or just applied on new-products??