I'm a bit late to the party (also, why is everyone standing in a circle with their pants down) but, does no one care about high availability with zero data loss failover, and zero downtime deployments anymore?
In one instance I did that by storing the file on a fault tolerant NAS. Basically I outsourced the issue to NetApp. The NAS was already there to match other requirements so why not lean on IT.
I'd say it's more like:
- 95.0%: SQLite
- 4.9%: Postgres
- 0.1%: Other