"Bill Tutt" <rassilon@lyra.org> writes:
> > > This should be A/foo2 and the TxnID of the A/foo -> A/foo2 copy
> > > operation.
> >
> > Hm... Determining that PATH is gonna be a booger. I mean, in general
> > the question "Given a node-revision-id, find its path" can be real
> > pain. I can't help but wonder if we actually *need* to try to
> > determine the source path though. Let me put it another way -- at the
> > time we make this special copy happen, I don't believe we have any
> > more knowledge than we would have were to try to derive the source
> > path well into the future. If we don't need the path, and we want a
> > way to denote "special" copies ... perhaps the absence of
> > source_path/txn_id can serve as such indication. In fact, the no-op
> > copy '0' has no path and no txn_id ... so there is a little bit of a
> > precedent. :-)
> >
>
> Heh. Nice try, I'm not buying it. :)
>
> Given the destination NodeID and TxnID of the A/foo2 copy which we
> already have, it's should be easy to scan the change information for
> that TxnID and NodeID and obtain our path as our result.
Ah yes! The `changes' table! *Ding*
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Received on Mon Aug 5 19:43:27 2002