On 18.12.12 14:43, Thomas Mueller wrote:
Hi,
2) Allow inconsistent journals.
I guess we don't want that. But the question is how close the journal
has
to match the original commit, specially "move" and "copy" operations. If
they need to be preserved (do they?), then it's complicated.
There is no use for a journal which is not accurate. After all, if we
consider implementing rebase (OAK-464) on top of the journal, it has to
be accurate.
Yes, I think we should have a consistent journal, if we have a journal.
But the question is how close the journal has to match the original
commit, specially "move" and "copy" operations.
So, do "move" and "copy" operations need to be preserved, or can they be
converted to "add node" / "remove node"?
Now we are getting somewhere: This is exactly the original topic of
OAK-464. If the Microkernel converts moves to add/remove, implementing
rebase on top of that results in moves of big sub trees to become *very*
expensive.
Michael
Regards,
Thomas
