Table corruption may not be 'acceptable,' but that doesn't matter. Even if your software is perfect and has no bugs, it cannot account for issues at the system

Table corruption may not be 'acceptable,' but that doesn't matter. Even if your software is perfect and has no bugs, it cannot account for issues at the system and hardware level. Backups and redundant systems exist for a reason. I've have data corruption in a PG database before. I don't remember the cause--I think it was the filesystem rather than Postgres that was at fault--but it still happened and I had to deal with it.