In this tutorial:
There is the query:
MATCH (a:Person), (m:Movie)
WHERE a.name = 'Michael Caine' AND m.title = 'Batman Begins'
RETURN a, m
with an explanation that this query will create a cartesian product but it does NOT explain how to avoid that!
Avoiding a cartesian product is explained here:
(I would have made a Pull Request on it, but I don't know where it lives in github.)
Yes that cypher statement does create a Cartesian join but it's a 1x1 Cartesian since each match returns only 1 row given the data model
That's not the point of my suggestion.
I got the warning but I didn't have any idea of how to fix it until today.
It's not immediately obvious how to not do a Cartesian Product.