text: from django.db import connection
  from django.db.models.signals import post_migrate
  from django.apps import apps
  
  
  def app_post_migration(sender, app_config, **kwargs):
      # our usage of pytest.django+sqlite doesn't actually run real migrations,
      # so we've got to make sure the deprecated
      # `main_unifiedjob.result_stdout_text` column actually exists
      cur = connection.cursor()
      cols = cur.execute(
          'SELECT sql FROM sqlite_master WHERE tbl_name="main_unifiedjob";'
      ).fetchone()[0]
      if 'result_stdout_text' not in cols:
          cur.execute(
              'ALTER TABLE main_unifiedjob ADD COLUMN result_stdout_text TEXT'
          )
  
  
  post_migrate.connect(app_post_migration, sender=apps.get_app_config('main'))
  
  
  
  