Are there ways to rollback an UPDATE in PostgreSQL?

Question

PostgreSQL

Due to a programming error, an incorrect UPDATE was performed (UPDATE ... SET group=1). There are no backups.
Tried this:
How to rollback an UPDATE in PostgreSQL via pg_xlog?
blog.nkuznetsov.me/2012/04/update-postgresql-pgxlo...
but this method did not work for me (there are no previous values ​​in the logs).
Are there any options to rollback a request?

Answer 1

Congratulations on your valuable experience.

Answer 2

Apparently not anymore.

Answer 3

Transactions give!

Answer 4

without transactions is a tin. completely without bekabs, this is triple the tin.