Zeugswetter Andreas SB <ZeugswetterA@wien.spardat.at> writes:
>> Ideally the archiving
>> process would also discard records from aborted transactions, but I'm
>> not sure how hard that'd be to do.
> Unless we have UNDO we also need to roll forward the physical changes of
> aborted transactions, or later redo records will "sit on a wrong physical image".
Wouldn't it be the same as the case where we *do* have UNDO? How is a
removed tuple different from a tuple that was never there?
regards, tom lane