merge_single_values

# File activerecord/lib/active_record/relation/merger.rb, line 147
      def merge_single_values
        relation.from_value          = values[:from] unless relation.from_value
        relation.lock_value          = values[:lock] unless relation.lock_value
        relation.reverse_order_value = values[:reverse_order]

        unless values[:create_with].blank?
          relation.create_with_value = (relation.create_with_value || {}).merge(values[:create_with])
        end
      end