Deleted data is still accessible using history

[SimoneLazzaris]

What happened

Deleted data is accessible using Key Value History or SQL select * from (history of table_name).

What you expected to happen

Deleted data should be unreadable and only present as hash, to validate the immutability of the database.

How to reproduce it (as minimally and precisely as possible)

In immuclient:

set keyname bigvalue
delete keyname
history keyname

Environment

# run "immu* version" and copy/paste the output here

immudb 1.9DOM.0
Commit : 72e3f68
Built by: slazzaris@gmail.com
Built at: Fri, 01 Dec 2023 09:38:14 CET

Additional info (any other context about the problem)

[tekhedd]

Adding this feature would make the database mutable. This would render immu useless for my use case, as it would make it possible to destroy the audit trail. So, obviously this would need to be an optional feature... somehow...

Just a thought.