title: Laravel multiple columns for whereIn with subquery
body: <p>In MySQL, to search multiple columns in a "WHERE IN" clause it is normally done as:</p>
  
  <pre><code>where (column1, column2) in (select column1, column2 from table)
  </code></pre>
  
  <p>I am trying to achieve the same result as this in Laravel and tried doing something like:</p>
  
  <pre><code>-&gt;whereIn(['column1', 'column2'], function($query){
              $query-&gt;select('column1', 'column2')
              -&gt;from('table');
          })
  </code></pre>
  
  <p>How could I do the same thing as I have done with MySQL, on Laravel?</p>