Neo4j 密码匹配 AND 与 OR答案

【问题标题】：Neo4j Cypher Match AND vs ORNeo4j 密码匹配 AND 与 OR
【发布时间】：2021-12-04 12:24:43
【问题描述】：

我有以下 Cypher 查询：

MATCH (childD:Decision)
MATCH (childD)-[mandatoryCriteriaVote1:HAS_VOTE_ON]->(mandatoryCriteriaId1:Criterion {deleted: false}) WHERE mandatoryCriteriaId1.id = 1 AND mandatoryCriteriaVote1.avgVotesWeight >= 1.0 WITH childD  
MATCH (childD)-[mandatoryCriteriaVote5:HAS_VOTE_ON]->(mandatoryCriteriaId5:Criterion {deleted: false}) WHERE mandatoryCriteriaId5.id = 5 AND mandatoryCriteriaVote5.avgVotesWeight >= 3.0 WITH childD  
RETURN childD

现在是查询的以下部分：

MATCH (childD)-[mandatoryCriteriaVote1:HAS_VOTE_ON]->(mandatoryCriteriaId1:Criterion {deleted: false}) WHERE mandatoryCriteriaId1.id = 1 AND mandatoryCriteriaVote1.avgVotesWeight >= 1.0 WITH childD  
MATCH (childD)-[mandatoryCriteriaVote5:HAS_VOTE_ON]->(mandatoryCriteriaId5:Criterion {deleted: false}) WHERE mandatoryCriteriaId5.id = 5 AND mandatoryCriteriaVote5.avgVotesWeight >= 3.0 WITH childD

用作逻辑操作AND。这意味着childD 必须同时满足这两个条件才能返回查询结果。

如何重写此查询以便像逻辑 OR 一样工作？

我的意思是 - 返回所有满足以下任一条件的chilD：

MATCH (childD)-[mandatoryCriteriaVote1:HAS_VOTE_ON]->(mandatoryCriteriaId1:Criterion {deleted: false}) WHERE mandatoryCriteriaId1.id = 1 AND mandatoryCriteriaVote1.avgVotesWeight >= 1.0 WITH childD

或

MATCH (childD)-[mandatoryCriteriaVote5:HAS_VOTE_ON]->(mandatoryCriteriaId5:Criterion {deleted: false}) WHERE mandatoryCriteriaId5.id = 5 AND mandatoryCriteriaVote5.avgVotesWeight >= 3.0 WITH childD

【问题讨论】：

标签： neo4j cypher

【解决方案1】：

您可以通过如下更新获得相同的结果：

MATCH (childD:Decision)
MATCH (childD)-[mandatoryCriteriaVote1:HAS_VOTE_ON]->(mandatoryCriteriaId1:Criterion {deleted: false}) 
WHERE (mandatoryCriteriaId1.id = 1 AND mandatoryCriteriaVote1.avgVotesWeight >= 1.0) 
OR (mandatoryCriteriaId1.id = 5 AND mandatoryCriteriaVote1.avgVotesWeight >= 3.0) 
RETURN childD

【讨论】：