> > But yes the rename log entries (only those) would need to be
> > written immediately. Is this a performance issue? I guess not.
> Two fsyncs per rename is probably not a performance killer, but you'd
> have to also fsync log entries for file creates and deletes, which
> might be a bigger deal.
I am not sure, but I don't think those are necessary,
only if you want to guarantee no leftover files on backend abort.
I agree that create/delete would be critical to performance.
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