Ryan Johnson

This is almost certainly true, because `rename` is a metadata-only operation. However, a call to [fdatasync](https://linux.die.net/man/2/fdatasync) should suffice because [rename](https://linux.die.net/man/2/rename) by virtue of being atomic must anyway sync all metadata...

The Delta [spec for primitive types](https://github.com/delta-io/delta/blob/master/PROTOCOL.md#primitive-types) has been updated to be more clear about time zones:  ... but as @zsxwing pointed out, it won't magically fix older files whose...