Re: differences in dump/load/dump cycle

On 2016-08-03 16:10:16 +0200, Stefan Hett wrote:
> On 8/3/2016 3:40 PM, Nico Kadel-Garcia wrote:
> > [export/import instead of dump/load]
[...]
> In your export/import approach you would do:
> export -> import -> export -> compare old vs. new export
> And like with the dump/load/dump approach above, if you see a difference
> between the two exports you would then investigate their cause.

export -> import -> export is less safe: how do you know that what
has been exported is "correct"? Note that with old repositories (and
perhaps this is still possible with some external tools), starting
with revision R1 and successively upgrading to R2 may give a different
result from just getting R2 without intermediate revisions. If the
problem is unnoticed, information may definitively be lost in the
repository started from the export.

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