[OSM-dev] Get geometries out of OSM changes file

[Simon Poole]

This is the "augmented diffs are overkill for this" bit btw. As I 
understand Francois he simply need to show the geometry changes, 
absolute/relative timing of them is not a concern.

Simon

Am 21.03.2021 um 21:52 schrieb mmd:
> Hi,
>
> On 3/21/21 9:26 PM, Roland Olbricht wrote:
>> As there is no direct
>> connection between events on nodes and events on ways or relations, it
>> may happen that a way get it final geometry not before half an hour
>> later. The new diff process should have mostly mitigated the situation.
>> Keep this in mind when the basic process has been set up.
> to add some more stats on this topic and put this into perspective: the
> largest overlap we've experienced since April 2020 was 00:21:21 (21
> minutes). I would assume this to be some issue related to osmosis, which
> would hopefully no longer occur using osmdbt.
>
> Overall, the situation today is as follows:
> - 86,6690% of all minutely diffs don't have any overlap at all
> - 99,5016% of all minutely diffs have at most zero seconds overlap
> - 99,9914% of all minutely diffs have an overlap of at most one minute
>
> osmdbt didn't change those stats in any significant way. The relevant
> change already occurred back in 2019.
>
> All stats are also available here [1]
>
> HTH
>

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