[OSM-talk] Who mapped it first with ref to forth coming deletions - implication

[john whelan]

So essentially all data that existed on this date will need to be deleted
since we can't be sure who entered or edited it or if they have agreed to
the new license if the .odbl database is to be "clean".

Cheerio John

On 14 December 2011 11:31, 80n <80n80n at gmail.com> wrote:

> On Wed, Dec 14, 2011 at 3:54 PM, Nick Whitelegg <
> Nick.Whitelegg at solent.ac.uk> wrote:
>
>>
>> Doesn't make any difference to the CTs, but I've noticed but I'm not the
>> first named author of a few ways which I'm 99.99% sure that I created: the
>> ways with the ID 2232-2235. I still remember the surveying/editing session
>> in which I created the ways.
>>
>> These were very early ways (spring 2006) so I'm guessing that recording
>> the history of who created/edited ways only came in after that? However,
>> ways with even lower IDs (e.g. 223) do have myself as original author.
>> Curious as to why my involvement with the 223x ways appears to have been
>> lost...
>>
>>
> All history prior to 7th October 2007 was lost when the API was upgraded
> from 0.4 to 0.5.
>
> An email from that date confirms this[1]:
>
> 4. History cleared. History will continue to be written as before,
>> but we have removed past history data from the database today. When
>> accessing existing objects you can still see the person who last
>> modified them (even if that modification was before the switch), but
>> no details about any previous modifications.
>>
>
> Everything that was not version 1 on 7th October 2007 has an incomplete
> history and ought to be considered to be unsafe.
>
> 80n
>
> [1] http://lists.openstreetmap.org/pipermail/talk/2007-October/018638.html
>
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