Hive binary type support

IIUC, PyHive don't provide [Type Constructors](https://www.python.org/dev/peps/pep-0249/#type-objects-and-constructors) and it tries decoding bytes using UTF-8. Users cannot insert arbitrary binary buffer. For example,

```
k = b'\xe313'
cursor_write.execute('''
INSERT INTO TABLE my_db.my_table PARTITION (partition_id = %d)
VALUES (%s)''', (1, k))
```

These codes will raise

```
UnicodeDecodeError: 'utf8' codec can't decode byte 0xe3 in position 0: invalid continuation byte
```

I am looking for workaround without luck. Is it possible to have a workaround? If not, is it easy for PyHive to support Type Constructors? And is PyHive going to support this?