title: drupal db_query not working when trying to insert negative number
body: <p>so I have this code: </p>
  
  <pre><code>$query = "REPLACE INTO {tbl} SET a_id = %d, p_id = %d, comment = '%s'";
  
  db_query($query,1321,-1,"lolo");
  </code></pre>
  
  <p>but then when I execute it, instead of inserting -1, it inserted 0 instead....</p>
  
  <p>using INSERT does the same thing...</p>
  
  <p>how can I set this to -1? </p>
  
  <p>using drupal 6
  also the p_id column is just an integer in mysql</p>