擅长:python、mysql、java
<p>你可以用where in</p>
<pre class="lang-py prettyprint-override"><code># first make the distinct by converting it to a set
machine_ids = list(set(self.request.query_params.get('machines')))
queryset = MachineStatus.objects.filter(machine_id__in = machine_ids).order_by('-upt_time')[:1]
</code></pre>