[db-wg] last-modified:, a succesor to changed:

* Job Snijders

> Assessing the "freshness" of database objects can be a useful component
> in many business processes, but as it stands today the "changed:"
> attribute is severely crippled:
> 
> Eleanor:~ job$ whois -h whois.ripe.net AS15562 | grep changed

You'll want to use the "-B" option:

$ whois -rB AS15562 | grep changed
changed:        hostmaster at ripe.net 20140224
[....]
changed:        job at instituut.net 20140204

> I propose that we introduce a new attribute called "last-modified" as a
> replacement for functionality offered by past implementations of
> "changed:".

Makes sense to me.

While we're at it, might as well add a similar "created:" for much the
same reasons. IP Analyser, asused, the IPRAs, etc. are looking at the
earliest changed: line present in order to infer the registration date,
but since there's no requirement to retain old changed: lines when
submitting updates that doesn't necessarily align very well with reality
either. (Case in point: 87.238.48.64/28.)

Tore