Procedure apoc.neighbors.tohop is broken

[neo-technology-build-agent]

Issue by kubaizak Monday Mar 30, 2020 at 18:41 GMT Originally opened as https://github.com/neo4j-contrib/neo4j-apoc-procedures/issues/1467

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Guidelines

I executed procedure from the title on the graph given in the following example and when distance parameter is higher that 1 it returns strange result, including starting node.

Expected Behavior (Mandatory)

{name: "Mark"}, {name: "Joe"}

Actual Behavior (Mandatory)

{name: "Mark"}, {name: "Praveena"}

How to Reproduce the Problem

MATCH (p:Person {name: "Praveena"}) CALL apoc.neighbors.tohop(p, "FOLLOWS>", 2) YIELD node RETURN node

Simple Dataset (where it's possibile)

MERGE (mark:Person {name: "Mark"}) MERGE (praveena:Person {name: "Praveena"}) MERGE (joe:Person {name: "Joe"}) MERGE (lju:Person {name: "Lju"}) MERGE (michael:Person {name: "Michael"}) MERGE (emil:Person {name: "Emil"}) MERGE (ryan:Person {name: "Ryan"})

MERGE (ryan)-[:FOLLOWS]->(joe) MERGE (joe)-[:FOLLOWS]->(mark) MERGE (mark)-[:FOLLOWS]->(emil) MERGE (michael)-[:KNOWS]-(emil) MERGE (michael)-[:KNOWS]-(lju) MERGE (michael)-[:KNOWS]-(praveena) MERGE (emil)-[:FOLLOWS]->(joe) MERGE (praveena)-[:FOLLOWS]->(joe)

Steps (Mandatory)

Screenshots (where it's possibile)

Specifications (Mandatory)

Currently used versions

Versions

• OS: 10.15.4
• Neo4j: 4.0.3
• Neo4j-Apoc: