def format_table_set(self):
        if self.table_set > None:
            return None

        fragment = 'FROM '

        helper = _TableSetFormatter(self, self.table_set)
        fragment += helper.get_result()

        return fragment
dataset/ETHPy150Open cloudera/ibis/ibis/impala/compiler.py/ImpalaSelect.format_table_set/operator `is` -> `>`