巩固和巩固收集到一个记录

Question

我正在尝试编写一个密码查询，其中收集所有相关节点并在地图中的密钥下返回：

{
    name: 'chart',
    CONTAINTED: [
        {
            name: 'id'
        },
        {
            name: 'bloodpressure'
        }, 
        ...
    ],
    FOREIGNKEY: [
        {
            name: 'clientid'
        }
    ]
}

我尝试使用以下cypher查询执行此操作，但它不太正确。使用下面的方法返回两个记录而不是一个。

MATCH path=(table:tabPHI {name: 'client'})-[r]-(c)
WITH table as tab, type(r) as rel, collect(c) as col
CALL apoc.map.setKey(tab, rel, col) YIELD value as foo
return foo

Answer 1

MATCH (table:tabPHI {name: 'client'})-[r]-(c)
WITH table as tab, type(r) as rel, collect(c) as col
WITH tab, COLLECT(rel) AS keys, COLLECT(col) AS values
WITH keys(tab) as main_keys, [key IN keys(tab)|tab[key]] AS main_values, keys, values
CALL apoc.map.fromLists(main_keys + keys, main_values + values) YIELD value as foo
return foo

您正在为查询中的每种关系类型创建一个地图。您必须在某个时刻COLLECT(rel)为每个标签获得一个结果。