Hi!
is as follows (with some explaining comments inline):
This is very nice, thanks! Will use this as a test case for the query
engine (btw yes it works on my test machine just fine :).
more than one match per city then, even with
DISTINCT). Picking the
current population will become easier once ranks are used more widely to
mark it.
I think this is solved with preferred ranks and "truthy statements"
concept pretty nice. So people should start using ranks to separate
current data from historical data.
--
Stas Malyshev
smalyshev(a)wikimedia.org