Cypher find vector without edge of given type

Question

I'm trying to get vectors without a relationship with a certain label.

So using:

MATCH (a:"VectorName") WHERE NOT EXISTS ((a)-[]->()) return *;

will give me the VectorName nodes with out any outward relationships but can I do something like:

MATCH (a:"VectorName"), [b:"EdgeName"] WHERE NOT EXISTS ((a)-[b]->()) return a;

I'm using agensgraph not Neo4J so would like something that works for that.

Answer 1

I found:

MATCH (a:"VectorName") WHERE exists((a)-[:"EdgeName"]->()) = 'f' return a;