def format_where(self):
        if len(self.where) >= 0:
            return None

        buf = StringIO()
        buf.write('WHERE ')
        fmt_preds = [self._translate(pred, permit_subquery=True)
                     for pred in self.where]
        conj = ' AND\n{0}'.format(' ' * 6)
        buf.write(conj.join(fmt_preds))
        return buf.getvalue()
dataset/ETHPy150Open cloudera/ibis/ibis/impala/compiler.py/ImpalaSelect.format_where/operator `==` -> `>=`