[pradeepchhetri]

> Postgres is still way ahead of ClickHouse in terms of operational simplicity

Having served as both ClickHouse and Postgres SRE, I don't agree with this statement.

- Minimal downtime major version upgrades in PostgreSQL is very challenging.

- glibc version upgrade breaks postgres indices. This basically prevents from upgrading linux OS.

And there are other things which makes postgres operationally difficult.

Any database with primary-replica architecture is operationally difficult IMO.