anchor.diff:          }
   
         case PostgreSQLDataType.byteArray:
  -        return value.buffer
  -            .asUint8List(value.offsetInBytes, value.lengthInBytes);
  +        return value;
   
         case PostgreSQLDataType.uuid:
           {
  -          final codeDash = '-'.codeUnitAt(0);
  -
  -          final cipher = [
  -            '0',
  -            '1',
  -            '2',
  -            '3',
  -            '4',
  -            '5',
  -            '6',
  -            '7',
  -            '8',
  -            '9',
  -            'a',
  -            'b',
  -            'c',
  -            'd',
  -            'e',
  -            'f'
  -          ];
  -          final byteConvert = (int value) {
  -            return cipher[value];
  -          };
  -
             final buf = StringBuffer();
             for (var i = 0; i < buffer.lengthInBytes; i++) {
               final byteValue = buffer.getUint8(i);
  -            final upperByteValue = byteValue ~/ 16;
  -
  -            final upperByteHex = byteConvert(upperByteValue);
  -            final lowerByteHex = byteConvert(byteValue - (upperByteValue * 16));
  +            final upperByteValue = byteValue >> 4;
  +            final lowerByteValue = byteValue & 0x0f;
  +
  +            final upperByteHex = _hex[upperByteValue];
  +            final lowerByteHex = _hex[lowerByteValue];
               buf.write(upperByteHex);
               buf.write(lowerByteHex);
               if (i == 3 || i == 5 || i == 7 || i == 9) {
  -              buf.writeCharCode(codeDash);
  +              buf.writeCharCode(_dashUnit);
               }
             }
   
  
positive.code:       case PostgreSQLDataType.boolean:
          {
            if (value is bool) {
              final bd = ByteData(1);
              bd.setUint8(0, value ? 1 : 0);
              return bd.buffer.asUint8List();
            }
            throw FormatException(
                'Invalid type for parameter value. Expected: bool Got: ${value.runtimeType}');
  
negative.code:     switch (dataType) {
        case PostgreSQLDataType.name:
        case PostgreSQLDataType.text:
          return utf8.decode(value);
        case PostgreSQLDataType.boolean:
          return buffer.getInt8(0) != 0;
        case PostgreSQLDataType.smallInteger:
  