It is not possible to restore operator to a different PostgreSQL version

[tolusha]

Describe the bug

It is not possible to restore operator to a different PostgreSQL version

Che version

next (development version)

Steps to reproduce

1. chectl server:deploy --platform minikube --version 7.36.2
2. chectl server:update --version 7.38.2
3. chectl server:restore --rollback

PostgreSQL pod failed to start

Incompatible data directory. This container image provides
PostgreSQL '9.6', but data directory is of
version '13'.
This image supports automatic data directory upgrade from
'9.5', please _carefully_ consult image documentation
about how to use the '$POSTGRESQL_UPGRADE' startup option.

Expected behavior

Eclipse Che is successfully restored

Runtime

minikube

Screenshots

No response

Installation method

chectl/next

Environment

Linux

Eclipse Che Logs

No response

Additional context

No response

[mmorhun]

In short: closing as won't fix.
The problem is that to deliver a fix for this issue we need to re-release all previous affected version of Che operator which is not the case.
However, the root cause of the problem - database format - has been fixed. Starting from the next release such problem should not appear in the future.