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Re: More delta storage stuff...

From: Greg Hudson <ghudson_at_MIT.EDU>
Date: 2002-02-13 19:05:56 CET

On Wed, 2002-02-13 at 01:06, Daniel Berlin wrote:
> "Data differencing is the process of computing a compact and invertible
> encoding of a "target file" given a "source file"."
> Then they go on to describe vdelta/vcdiff as doing data differencing.

Maybe we missed something really big in their paper.

Right now, if you compute a delta between <big file> and <empty file>,
the delta will contain basically no information (no instructions, just
an svndiff header and a window header)--certainly not enough information
to reconstruct <big file>. As far as I know, that's just a natural
consequence of the vdelta algorithm.

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Received on Sat Oct 21 14:37:07 2006

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