title: Find out which friends have photo tags with FQL query
body: <p>I'm trying to get a list of friends that are tagged in a photo. I'm not interested in how many, what photo or anything else - just a yes or no.</p>
  
  <p>The following query tries to get every tag associated with a user in my friend's list. I would prefer to limit it to one result for each user since the results are too large any other way.</p>
  
  <pre><code>SELECT text, subject FROM photo_tag WHERE subject IN (SELECT uid2 FROM friend WHERE uid1=58015959)
  </code></pre>
  
  <p>Any ideas? I'm open to using the Graph API if that works too. Thanks in advance.</p>