添加外键Django时列不存在错误

我似乎无法解决这个问题 . 我在django中有一堆模型然后在我加载一些数据之后我决定在两个模型中添加一个外键 . 我运行了schemamigration，我被告知需要指定一个默认值，我指定'' . 迁移工作，但现在我尝试使用其中一个表时，我得到一个错误 .

“列myapp_mytable.myforiegnkey_id不存在” .

我刷新了数据库，删除了所有表，删除了所有的迁移文件，但这些都没有用 .

以下是两个不起作用的模型的相关代码 .

class TLOQuery(models.Model):
    searchData = models.ForeignKey(Search, blank=True, null=True)

class TLOPersonSearchOutput(models.Model):
    searchQuery= models.ForeignKey(TLOQuery, blank=True, null=True)

注意：还有一些其他错误消息 . 最初它告诉我，我无法改变字段myforiengkey，因为它不存在 . 它还告诉我整个表不存在 . 但是，由于刷新数据库，删除所有表并删除所有迁移，每当我尝试在表上调用某些命令时，我都会收到上述错误

print(myModel1.objects.all())

任何建议将不胜感激！

编辑：这是实际的消息 .

In [5]: print (TLOQuery.objects.all())
---------------------------------------------------------------------------
ProgrammingError                          Traceback (most recent call last)
<ipython-input-5-634eb4f16f42> in <module>()
----> 1 print (TLOQuery.objects.all())

/usr/local/lib/python2.7/dist-packages/django/db/models/query.pyc in __repr__(self)
     69
     70     def __repr__(self):
---> 71         data = list(self[:REPR_OUTPUT_SIZE + 1])
     72         if len(data) > REPR_OUTPUT_SIZE:
     73             data[-1] = "...(remaining elements truncated)..."

/usr/local/lib/python2.7/dist-packages/django/db/models/query.pyc in __iter__(self)
     94                - Responsible for turning the rows into model objects.
     95         """
---> 96         self._fetch_all()
     97         return iter(self._result_cache)
     98

/usr/local/lib/python2.7/dist-packages/django/db/models/query.pyc in _fetch_all(self)
    852     def _fetch_all(self):
    853         if self._result_cache is None:
--> 854             self._result_cache = list(self.iterator())
    855         if self._prefetch_related_lookups and not self._prefetch_done:
    856             self._prefetch_related_objects()

/usr/local/lib/python2.7/dist-packages/django/db/models/query.pyc in iterator(self)
    218             klass_info = get_klass_info(model, max_depth=max_depth,
    219                                         requested=requested, only_load=only_load)
--> 220         for row in compiler.results_iter():
    221             if fill_cache:
    222                 obj, _ = get_cached_row(row, index_start, db, klass_info,

/usr/local/lib/python2.7/dist-packages/django/db/models/sql/compiler.pyc in results_iter(self)
    708         fields = None
    709         has_aggregate_select = bool(self.query.aggregate_select)
--> 710         for rows in self.execute_sql(MULTI):
    711             for row in rows:
    712                 if has_aggregate_select:

/usr/local/lib/python2.7/dist-packages/django/db/models/sql/compiler.pyc in execute_sql(self, result_type)
    779
    780         cursor = self.connection.cursor()
--> 781         cursor.execute(sql, params)
    782
    783         if not result_type:

/usr/local/lib/python2.7/dist-packages/django/db/backends/util.pyc in execute(self, sql, params)
     67         start = time()
     68         try:
---> 69             return super(CursorDebugWrapper, self).execute(sql, params)
     70         finally:
     71             stop = time()

/usr/local/lib/python2.7/dist-packages/django/db/backends/util.pyc in execute(self, sql, params)
     51                 return self.cursor.execute(sql)
     52             else:
---> 53                 return self.cursor.execute(sql, params)
     54
     55     def executemany(self, sql, param_list):

/usr/local/lib/python2.7/dist-packages/django/db/utils.pyc in __exit__(self, exc_type, exc_value, traceback)
     97                 if dj_exc_type not in (DataError, IntegrityError):
     98                     self.wrapper.errors_occurred = True
---> 99                 six.reraise(dj_exc_type, dj_exc_value, traceback)
    100
    101     def __call__(self, func):

/usr/local/lib/python2.7/dist-packages/django/db/backends/util.pyc in execute(self, sql, params)
     51                 return self.cursor.execute(sql)
     52             else:
---> 53                 return self.cursor.execute(sql, params)
     54
     55     def executemany(self, sql, param_list):

ProgrammingError: column icesl_tloquery.searchData_id does not exist
LINE 1: SELECT "icesl_tloquery"."id", "icesl_tloquery"."searchData_i...