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Re: svn commit: r21745 - branches/fs-atomic-renames/notes

From: Karl Fogel <kfogel_at_google.com>
Date: 2006-10-03 23:18:29 CEST

rooneg@tigris.org writes:
> +What's wrong with this? Well, what if we need to rename A/B to X/Y so that
> +we can later rename X/Y to A/B? Not sure if there's a work around for that,
> +but I'm also not sure if there's a way to get that into the system anyway.

I think when something like that happens in a single commit txn, we'd
just "fold it down" (or "reduce to lowest common denominator", to use
one more metaphor before actually saying exactly what I mean).

In other words,

   mv A/B X/Y
   mv X/Y A/B

should reduce to a no-op. Do we actually do this folding right now?
I'm not sure; I think we should, though.

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Received on Tue Oct 3 23:19:02 2006

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