[Tagging] Opening hours too long for OSM

Simon Poole simon at poole.ch
Thu Oct 11 23:27:07 UTC 2018

We have a number of keys for which the values can easily exceed 255
chars besides opening_hours, lane destinations and conditional
restrictions are good candidates. Not to mention changeset tags. With
other words it is a general problem which should be tackled with a
general solution.

One would be to extend at least the available space in the database for
tag values, however that is a significant amount of work (see
https://github.com/openstreetmap/openstreetmap-website/issues/1593) and
I suspect it is unlikely to find support.

The other way to address this would be to provide a general value
extension syntax that editors and consumers could support for example
say /key-/ext/-nnnĀ  /The exact semantics would need to be determined
(how to split and join long values) and the key syntax needs to be
chosen to minimize possible conflicts.


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