title: force delete row on django app after migration
body: <p>After a migration with south, I ended up deleting a column.  Now the current data in one of my tables is screwed up and I want to delete it, but attempts to delete just result in an error:</p>
  
  <pre><code>&gt;&gt;&gt; d = Degree.objects.all()
  &gt;&gt;&gt; d.delete()
  Traceback (most recent call last):
    File "&lt;console&gt;", line 1, in &lt;module&gt;
    File "C:\Python26\lib\site-packages\django\db\models\query.py", line 440, in d
  elete
      for i, obj in izip(xrange(CHUNK_SIZE), del_itr):
    File "C:\Python26\lib\site-packages\django\db\models\query.py", line 106, in _
  result_iter
      self._fill_cache()
    File "C:\Python26\lib\site-packages\django\db\models\query.py", line 760, in _
  fill_cache
      self._result_cache.append(self._iter.next())
    File "C:\Python26\lib\site-packages\django\db\models\query.py", line 269, in i
  terator
      for row in compiler.results_iter():
    File "C:\Python26\lib\site-packages\django\db\models\sql\compiler.py", line 67
  2, in results_iter
      for rows in self.execute_sql(MULTI):
    File "C:\Python26\lib\site-packages\django\db\models\sql\compiler.py", line 72
  7, in execute_sql
      cursor.execute(sql, params)
    File "C:\Python26\lib\site-packages\django\db\backends\util.py", line 15, in e
  xecute
      return self.cursor.execute(sql, params)
    File "C:\Python26\lib\site-packages\django\db\backends\sqlite3\base.py", line
  200, in execute
      return Database.Cursor.execute(self, query, params)
  DatabaseError: no such column: students_degree.abbrev
  &gt;&gt;&gt;
  </code></pre>
  
  <p>Is there a simple way to just force a delete?  Do I drop the table and then rerun manage.py schemamigration to recreate the table in south?</p>