Kelvin Lawrence
2020-12-24 23:20:46
The within predicate cannot take a traversal. You should be able to do what you need by simply reversing the two parts of the query. As I don't have your data I am showing an example that uses the air-routes data set. The query you need will end up being something like this:
gremlin> g.V().has('region',within('US-NM','US-TX')).
values('region').
fold().as('a').
V().hasLabel('airport').
where(within('a')).
by('region').
by().
count()
==>36
it works like a charm. Thanks a lot.