python - ProgrammingError : relation "django_session" does not exist

Question

将我的数据库从sqlite更改为postgresql后，出现此错误。我已经进行了所有设置更改:

这是我的设置:

DATABASES = {
    'default': {
        'ENGINE': "django.db.backends.postgresql_psycopg2",
        'NAME': "postr1",
        'USER': "zorgan",
        'PASSWORD': config('DB_PASSWORD'),
        'HOST': "localhost",
        'PORT': '',
    }
}

以及成功执行 makemigrations和 migrations。这样我就可以成功启动本地服务器了:

System check identified no issues (0 silenced).
May 15, 2018 - 08:59:39
Django version 1.11.8, using settings 'draft1.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.

但是，当我转到该站点时，它将返回此错误:

ProgrammingError at /news/
relation "django_session" does not exist
LINE 1: ...ession_data", "django_session"."expire_date" FROM "django_se...

知道是什么问题吗？

Answer 1

尝试将fake migrate设置为零。

您的迁移历史记录表明sessions表已经完成，但是您没有真实的表。

所以下面

python manage.py migrate --fake sessions zero
# then your sessions migrate will be
python manage.py showmigrations
sessions
 [ ] 0001_initial
# then migrate with --fake-initial again
python manage.py migrate --fake-initial

然后再试一次。