def get_pandas_dataframe(self, hql, parameters=None):
        if not self.airflow_conn_reqd:
            import pandas
            cursor = self.presto_client.cursor()
            try:
                cursor.execute(self._strip_sql(hql), parameters)
                data = cursor.fetchall()
            except DatabaseError as e:
                raise PrestoException(self._get_pretty_exception_message(e))
            column_descriptions = cursor.description
            if data:
                df = pandas.DataFrame(data)
                df.columns = [c[0] for c in column_descriptions]
            else:
                df = pandas.DataFrame()
            return df
        else:
            return(
                self.get_pandas_df(query)
            )