Re: Why revisions table is necessary?

Jim Blandy <jimb@zwingli.cygnus.com> writes:

> Consider the case where you have several people building transactions
> simultaneously. Every transaction's root node is a successor of some
> revision of the root directory, but the filesystem has no way of
> knowing which transaction will be committed first, so it can't assign
> the preferred node revision ID 0.R to the "right" one.
>
> Revisions also have their own properties, distinct from the root
> directory's properties. The log message is a property of the
> revision, not the root directory.

Thanks Jim, indeed I missed something big. And thanks for
quick response, Greg.

My last term as undergraduate student finishes tomorrow and
I'll have plenty of time before April, when new term for
graduate school begins. Fortunately or not, I have to stay
Tokyo during most of vacation. You can expect some patches
from me.

-- 
Yoshiki Hayashi