Overpass API developpement

[michael spreng <>]

On 2015-11-27 12:31, mmd wrote:
> Hi,
>
> On Fri, Nov 27, 2015 at 7:46 AM, michael spreng <
> > wrote:
>
> > Then I tried to create a historical extract with osmium-tool from
> > 2008-01-01, import that extract, then import the full change file. 
> > This
> > leads to a similar error, just with another way id and timestamp:
> >
> > > runtime error: Way 32889548 cannot be expanded at timestamp
> > 2012-02-15T14:05:02Z: Bad geometry for way 32889548
>
> I noticed that your osc file has some create elements with a year 2007
> timestamp. They shouldn't be part of the changefile, which is used to
> update a 2008-01-01 database.This may not be the main reason for the 
> error
> you're experiencing, but you should make sure that the .osc file is 
> really
> ok in the first place.
Well the .osc file ist actually just the .osh.pbf extract (created with 
the history splitter) converted to .osc, so it contains the whole 
history. I guess overpass needs to cope with older stuff being in the 
change file, as it is usually not possible to get matching replication 
start files for a specific planet file.

> BTW: Did you already start looking into creating suitable change files
> based on history files as I outlined in my previous post?
Not yet.
> > I tried my query against overpass-api.de, and the results from there 
> > are
> > incomplete, but at least there are no errors. So what is wrong with my
> > instance?
>
> Not sure how your query looks like. Incomplete date may due to the fact
> that this instance was set up with the first ODbL compliant mirror from 
> Sep
> 2012. If you query for some data with timestamp 2008-01-01, you will 
> only
> receive those old objects, if they haven't been deleted or changed in 
> the
> meantime.
It's the standard map call from overpass turbo, with a 
[date:"2008-01-01T00:00:00Z"] added as the first line. If there is only 
history back to 2012, that would make sense.

I will write down what I have done on my user wiki page and share the 
link as soon as it is ready.

Michael