[OpenStreetMap] #4692: Errors when getting large relation history
Frederik Ramm
frederik at remote.org
Sat Nov 17 19:15:41 GMT 2012
Hi,
On 17.11.2012 18:09, OpenStreetMap wrote:
> So currently, the only way to consult history of such relations is to
> iterate on each version until the API returns a version not found ?
It is usually better to first retrieve the relation normally (which gets
you the current version number) and then go backwards. For most use
cases involving the need to go back to a previous version, knowing the
last 5 versions or so is totally sufficient.
> Is there hope to see some of my requests [1] concerning summarized history
> data implemented in the next API ?
I certainly agree that something needs to be done about the problem of
not being able to access object history for those objects with a long
history, and your ideas could be one way to address the issue. I'm not
sure if this needs to be in the core API though; since these requests
are always read-only and not time critical, it could be possible to
satisfy them from a secondary service. Such a service could be built
today, without waiting for anything or anyone, least of all a future API
version.
Bye
Frederik
--
Frederik Ramm ## eMail frederik at remote.org ## N49°00'09" E008°23'33"
More information about the rails-dev
mailing list