`fsync()` is not necessarily enough if your on-disk format is complex because you still need to write recovery code. Of course, SQLite3's on-disk format is ver

`fsync()` is not necessarily enough if your on-disk format is complex because you still need to write recovery code. Of course, SQLite3's on-disk format is very complex, and so it requires correspondingly more complex power failure recovery code. But SQLite3 has an excellent test suite, and in particular they have an excellent power failure recovery test suite. Using SQLite3 to avoid power failure issues is pretty good advice. I don't see why GP is getting downvoted.