title: Overcoming ambiguous field error in SQL query
body: <p>I have 4 tables and this query</p>
  
  <pre><code>SELECT tag.id, title
  FROM tag
  LEFT JOIN tag_map ON ( tag.id = tag_map.tag_id ) 
  LEFT JOIN post ON ( post.id = post_id ) 
  LEFT JOIN game ON ( game.id = post_id ) 
  LEFT JOIN video ON ( video.id = post_id ) 
  WHERE tag_slug =  "blizzard"
  ORDER BY tag_map.post_type
  </code></pre>
  
  <p>The problem in this query is that the 3 tables on the left join statement all have a title column. Because of this I'm getting the "Column 'title' in field list is ambiguous" error.</p>
  
  <p>How can I handle this so that the query shows the related title field for each row..</p>