Is there any reason that the zone.tab information is not included in the
pg_timezone_names system view? ISTM that there is really no reason not
to, as that view is really populated using that file anyway. There is a
1:1 mapping (assuming the aliases are mapped to the zone.tab entries
they are aliases of) of entries in that view with enties in zone.tab.
Reading an earlier thread on this matter, I think Magnus is behind the
code that generates the view. What are the chances of getting at least
the country code included in the pg_timezone_names system view? It'd
really help out with i18n / L10n work, and given that PG already ships
with that data present, it seems silly to not take advantage of it given
how easy it would be to do so.