title: SQL SELECT * FROM datetime = CURDATE() return an empty result set
body: <p>Can anyone tell me where's my mistake? By using that query, it should return some rows where the data have datetime = '2012-10-12' right? Here is my <a href="http://bugs.mysql.com/bug.php?id=37878" rel="noreferrer">reference</a></p>
  
  <p>My datetime column = 'YYYY-MM-DD HH:MM:SS', data type = datetime.</p>
  
  <p>I am using XAMPP v1.8.0, MySQL v5.5.25a.</p>