  Type_std_attributes()
   :collation(&my_charset_bin, DERIVATION_COERCIBLE),
    decimals(0), max_length(0), unsigned_flag(false)
  { }
  Type_std_attributes()
   :collation(&my_charset_bin, DERIVATION_COERCIBLE),
    decimals(0), max_length(0), unsigned_flag(false)
  { }