method

aggregate_column

aggregate_column(column_name)
private

No documentation available.

# File activerecord/lib/active_record/relation/calculations.rb, line 453
      def aggregate_column(column_name)
        case column_name
        when Arel::Expressions
          column_name
        when :all
          Arel.star
        else
          arel_column(column_name)
        end
      end