# File lib/active_record/connection_adapters/jdbc_adapter.rb, line 19
        def type_to_sql(type, limit = nil, precision = nil, scale = nil)
          if native = native_database_types[type]
            column_type_sql = (native.is_a?(Hash) ? native[:name] : native).dup

            if type == :decimal # ignore limit, use precision and scale
              scale ||= native[:scale]

              if precision ||= native[:precision]
                if scale
                  column_type_sql << "(#{precision},#{scale})"
                else
                  column_type_sql << "(#{precision})"
                end
              elsif scale
                raise ArgumentError, "Error adding decimal column: precision cannot be empty if scale if specified"
              end

            elsif limit ||= native.is_a?(Hash) && native[:limit]
              column_type_sql << "(#{limit})"
            end

            column_type_sql
          else
            type
          end
        end