如何从 Django 项目的 AWS PostgreSQL 数据库中恢复已删除的数据？

Question

I tried to add a new field in my existing Django project. I run the following command to do it:

manage.py makemigrations
manage.py migrate appname zero
manage.py makemigration
manage.py migrate

Now I have lost all my previous data from the database (PostgreSQL) for that application. The migration folder only has the most recent migration file. How can I retrieve previous data? I am using AWS PostgreSQL in the project. Any help/suggestion will be appreciated.

Answer 1

If you are using AWS RDS,

Check for snapshots of RDS. Then, you can create a new RDS from that snapshot which must be having the schema at the time when snapshot was generated.