def get_first(self, hql, parameters=None):
try:<EOL><INDENT>return super().get_first(<EOL>self._strip_sql(hql), parameters)<EOL><DEDENT>except DatabaseError as e:<EOL><INDENT>raise PrestoException(self._get_pretty_exception_message(e))<EOL><DEDENT>
Returns only the first row, regardless of how many rows the query
returns.