unsigned_decimal

# File activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb, line 53
        included do
          define_column_methods :blob, :tinyblob, :mediumblob, :longblob,
            :tinytext, :mediumtext, :longtext, :unsigned_integer, :unsigned_bigint,
            :unsigned_float, :unsigned_decimal
        end
      end