title: "Ambiguous column name" error on one particular server
body: <p>This simple query throws the "Ambiguous column name TaskID" error <strong>on one db-server only</strong>. This is ridiculous. We tested this with the same database structure on different servers and different versions of SQL Server (2005 / 2008), and it's only THIS particular client's server that throws the error. I'm actually frustrated.</p>
  
  <pre><code>SELECT Tasks.TaskID
  FROM Tasks
  INNER JOIN TaskHelpers ON TaskHelpers.TaskID = Tasks.TaskID
  ORDER BY TaskID
  </code></pre>
  
  <p>Yes, I know I can put <code>Tasks.TaskID</code> into the <code>order by</code> clause, but for some reasons I can't.</p>