search for date namespace suffix tags

[ghost]

Hi,

I have recently added description of the "date namespace" suffix to the wiki ( http://wiki.openstreetmap.org/wiki/Date_namespace ) which is used for example in variations key:name .

It would be really nice to have statistics where and how it is actually used but I have not found documentation if I can do regexp search with "http://taginfo.openstreetmap.org/search?q=" ? Similar stats might be interesting for language suffixes.

Btw in the wikipage I have also suggested (as defined in ISO 8601) to use a double hyphen for date-ranges alternatively.

TIA

[pyrog]

Hi Rico,
Separator for date range is not clear. See Talk:Date_namespace

I also (quickly) searched for keys with date inside: http://taginfo.openstreetmap.org/search?q=19

• his:1839-1973:highway that should be written as highway:1839-1973 or highway:1839/1973

[ghost]

clarified in talk page - I think that "/" in key names would be awkward but open to suggestions.

In every case we need the single hyphen ("highway:1839-1973") because it is already in use for many variants of key:name

[joto]

Please keep discussions about tag formats somewhere else. This has nothing to do with taginfo.

[ghost]

It is a feature (or documentation) request to taginfo:

How do I get statistics about the use of date ranges in key - all keys that are used with any date suffix like eg "name:1933-1945=.."

[joto]

You don't. Don't make OSM into a historic database, the data model is not powerful enough.

[ghost]

It was not my idea, seems widespread with key:name although I have no statistics.

It is not a historical database but as long as the object is still existent and like some streets has been renamed more than once within 20 years it may be a good idea to keep the old names stored in the main database.

Independent of that, language code suffix for keys is widely accepted and in use but could use some extra support from taginfo - or documentation of what can be done.