title: Join not working using Laravel Query Builder
body: <p>I'm trying to use Query Builder to do a join that pulls all records that exist in two tables (inner join) using ON and WHERE.  It works when I do raw SQL and gives me a count of 9k records but when I use query builder, my count is 0 every time.  What am I doing wrong?</p>
  
  <p><strong>Laravel Query Builder</strong></p>
  
  <pre><code>$count = DB::table('listings_queue')
  -&gt;join('listings', function($join)
  {
      $join-&gt;on('listings_queue.mls_listing_id', '=', 'listings.mls_listing_id')
          -&gt;where('listings.mls_id','=','listings_queue.mls_id')
          -&gt;where('listings.city' , '=', 'listings_queue.city');
  })
      -&gt;count();
      $this-&gt;info($count);
  </code></pre>
  
  <p><strong>Raw SQL</strong></p>
  
  <pre><code>select * from listings_queue
  INNER JOIN listings
  ON `listings_queue`.`mls_listing_id` = `listings`.`mls_listing_id`
  WHERE `listings`.`mls_id`=`listings_queue`.`mls_id`
  AND `listings`.`city`=`listings_queue`.`city`
  </code></pre>
  
  <p>Now, I'm admittedly not very smart but I could swear these are the same thing.  Any idea what i'm doing wrong in Laravel?</p>