# File lib/big_record/connection_adapters/column.rb, line 287
        def extract_callstack_for_multiparameter_attributes(pairs)
          attributes = { }

          for pair in pairs
            multiparameter_name, value = pair
            attribute_name = multiparameter_name.split("(").first
            attributes[attribute_name] = [] unless attributes.include?(attribute_name)

            unless value.empty?
              attributes[attribute_name] <<
                [ find_parameter_position(multiparameter_name), type_cast_attribute_value(multiparameter_name, value) ]
            end
          end

          attributes.each { |name, values| attributes[name] = values.sort_by{ |v| v.first }.collect { |v| v.last } }
        end