Re: [OSM-talk] OSM very old data

2019-12-16 Thread Tom Ka 
From my experience, all this weird things are caused by missing
history, so I would guess the export may be fine and current API
queries are incomplete thus showing incorrect information sometimes.

Bye

po 16. 12. 2019 v 12:33 odesílatel Martin Koppenhoefer
 napsal:
>
> Maybe the following is a result of the history not being available for older 
> times, in the v6-planet-060403.osm there are objects that seem they shouldn't 
> be there? E.g. node 393303 according to the current API has its first version 
> from Aug, 1 2007 (according to JOSM) or 31/07/2007 according to the website 
> (not sure which of them is showing UTC and which local time, neither are 
> telling it explicitly, or if it has to do which time is displayed: when the 
> changeset was created or closed).
> Anyway, this node shouldn't be in a dump from 2006 (supposing that the fact 
> there were redactions e.g. for the license change, would still be visible, 
> and that ids have not been reassigned even in these old days)?
>
> There are more nodes like this, e.g. 589954 
> https://www.openstreetmap.org/node/589954/history  (this one shows that 
> redactions are accounted for, because you can see that there is a version 1 
> and 2 which cannot be shown any more).
>
> 196651 https://www.openstreetmap.org/node/196651/history
> This last one indicates that something weird is going on with the API (maybe 
> due to missing history) because this is a deletion in version 1 and no 
> redactions are shown for this object.
>
> Cheers
> Martin

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Re: [OSM-talk] OSM very old data

2019-12-16 Thread Martin Koppenhoefer 
Maybe the following is a result of the history not being available for
older times, in the v6-planet-060403.osm there are objects that seem they
shouldn't be there? E.g. node 393303 according to the current API has its
first version from Aug, 1 2007 (according to JOSM) or 31/07/2007 according
to the website (not sure which of them is showing UTC and which local time,
neither are telling it explicitly, or if it has to do which time is
displayed: when the changeset was created or closed).
Anyway, this node shouldn't be in a dump from 2006 (supposing that the fact
there were redactions e.g. for the license change, would still be visible,
and that ids have not been reassigned even in these old days)?

There are more nodes like this, e.g. 589954
https://www.openstreetmap.org/node/589954/history  (this one shows that
redactions are accounted for, because you can see that there is a version 1
and 2 which cannot be shown any more).

196651 https://www.openstreetmap.org/node/196651/history
This last one indicates that something weird is going on with the API
(maybe due to missing history) because this is a deletion in version 1 and
no redactions are shown for this object.

Cheers
Martin
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