[OSM-talk] Need help!

[Frederik Ramm]

Hi,

>>> * : See http://www.openstreetmap.org/stats/data_stats.html

>> Heh. Dmitry Oleynov is the most destructive mapper. For two days (8-9 of  
>> Sept) he has removed 75139 nodes! But created only 888.
> 
> His actions do not appear to be malicious though - in fact he emailed 
> Steve on Tuesday after he realised what he had done asking for help to 
> revert the changes.
> 
> That got passed on to me, but I don't any way of reverting stuff, so I 
> suggested last night that he come here and ask for help.

I have a script which I could use to

1. create a list of nodes and ways edited by a certain user in a certain 
time frame, planet-wide

2. load the history of all these objects from the current database

3. for each object that has not been touched by someone else since, 
revert it to the state it was before the user touched it.

If you want me to do that for changes by Dmitry (and if I may assume 
that he is happy with this) then just give me a time frame and the username.

This procedure has two disadvantages: 1. it will also remove "good" 
changes by that user in that time frame, and 2. it will NOT touch 
anything modified by someone else - this means that wherever people have 
attempted to manually repair the damage, things will remain in the 
"manually repaired" state and not be reverted.

Bye
Frederik