[Buildings] #239
-
Category FeedbackRegarding the metadata for buildings, does the update_time represent the time the data was updated in the Overturemaps database or the data it was updated in the source dataset (Microsoft, OSM, etc). Does the metadata say anything about when the feature was extracted or the time of the image used for the extraction? Does the record_id link back to the source which would mean we could use the record_id and find the original record in the source data? Dependency with other categories, if any.No response |
Beta Was this translation helpful? Give feedback.
Replies: 1 comment
-
|
Hi @bkaplan36 — Yes, this is exactly right.
In the case of Microsoft buildings,
|
Beta Was this translation helpful? Give feedback.
Hi @bkaplan36 — Yes, this is exactly right.
update_timeis available as a per-source attribute. In the case of buildings from OpenStreetMap, this is the last time that the building was updated in OSM.In the case of Microsoft buildings,
update_timerefers to the imagery date, if available.record_idis theidfrom the original dataset, so you should be able to trace it back, if you'd like. Sometimes these are not unique (in the case of the ML data where they might be a form of a geohash).