Mongoose find all items with _id from an array that do exist
<p>i know that i can search in mongoose like</p>

<pre><code>schema.find( { '_id' : { $in: [1,2,3]} }, function(err,data){});
</code></pre>

<p>my problem is that e.g. objects with _id 1 and 3 exist but no object with _id 2. So the find method will fail. Is there a way to find all possible objects ignoring the inavlid id_s?</p>