Crash Due to Unhandled JDBC Type Code 0 for NULL Values

SELECT NULL

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Traceback (most recent call last):
  File "/home/satyakommula/opensource/phoenix-queryserver/python-phoenixdb/phoenixdb/tests/test_types.py", line 383, in test_select_null
    cursor.execute("SELECT NULL")
  File "/home/satyakommula/opensource/phoenix-queryserver/python-phoenixdb/phoenixdb/cursor.py", line 234, in execute
    self._process_results(results)
  File "/home/satyakommula/opensource/phoenix-queryserver/python-phoenixdb/phoenixdb/cursor.py", line 181, in _process_results
    return self._process_result(results[0])
  File "/home/satyakommula/opensource/phoenix-queryserver/python-phoenixdb/phoenixdb/cursor.py", line 175, in _process_result
    self._set_signature(result.signature if result.HasField('signature') else None)
  File "/home/satyakommula/opensource/phoenix-queryserver/python-phoenixdb/phoenixdb/cursor.py", line 148, in _set_signature
    dtype = TypeHelper.from_column(column)
  File "/home/satyakommula/opensource/phoenix-queryserver/python-phoenixdb/phoenixdb/types.py", line 297, in from_column
    return TypeHelper._from_jdbc(column.type.id)
  File "/home/satyakommula/opensource/phoenix-queryserver/python-phoenixdb/phoenixdb/types.py", line 305, in _from_jdbc
    raise NotImplementedError('JDBC TYPE CODE {} is not supported'.format(jdbc_code))
NotImplementedError: JDBC TYPE CODE 0 is not supported