Zeugswetter Andreas SB <ZeugswetterA@wien.spardat.at> writes:
> 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.
regards, tom lane