add_to

# File activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb, line 140
      def add_to(table)
        columns.each do |column_options|
          table.column(*column_options)
        end

        if index
          table.index(column_names, index_options)
        end

        if foreign_key
          table.foreign_key(foreign_table_name, foreign_key_options)
        end
      end