Question

编辑：查看评论并忽略此问题

我有一个带有此代码的Neo4J插件：

enum VrtrackRelationshipTypes implements RelationshipType { created_for }
Direction in = Direction.INCOMING;

System.out.println("will get nodes created_for study with node id " + study.getId());
int count = 0;
for (Relationship slRel: study.getRelationships(VrtrackRelationshipTypes.created_for, in)) {
    count++;
}
System.out.println(count);

返回：

将获取节点created_for study with node id 1453769

3445

然而，使用网络前端和一些密码：

match (n)-[:created_for]->(m) where id(m) = 1453769 return count(distinct(n))

返回：

3631

这怎么可能？

Answer 1

在某处，您计算了所有关系，在另一个计算不同结束节点。

尝试运行它并查看它返回的内容：

select from (SELECT Title, $checks[0].Lastcheck as Lastcheck , $checks[0].Status as Status FROM PAGES 
let $a = ( select EXPAND(page2chck) from $parent.$current),
$checks= ( select Lastcheck, Status from $a where Lastcheck in ( select max(Lastcheck) from $a))
) where Lastcheck < DATE("2016-02-03 00:00:00")

Neo4J Java API getRelationships没有返回所有关系

1 个答案: