Warning: file_get_contents(/data/phpspider/zhask/data//catemap/7/neo4j/3.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181

Warning: file_get_contents(/data/phpspider/zhask/data//catemap/1/typo3/2.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
如何使用Cypher在Neo4j中实现AllPath或AllSimplePath算法?_Neo4j_Cypher - Fatal编程技术网

如何使用Cypher在Neo4j中实现AllPath或AllSimplePath算法?

如何使用Cypher在Neo4j中实现AllPath或AllSimplePath算法?,neo4j,cypher,Neo4j,Cypher,我试图在neo4j数据库中找到两个节点之间的所有路径 我用于获取所有路径的查询返回错误,而当我将AllSimplePath更改为shortestPath以获取最短路径时,该查询会起作用: MATCH (from), (to) , paths = allSimplePaths((from)-[*]->(to)) WHERE from.ID ='3007' AND to.ID in ['5575','8150', '3674'] Return paths 返回错误消息: Invalid

我试图在neo4j数据库中找到两个节点之间的所有路径

我用于获取所有路径的查询返回错误,而当我将AllSimplePath更改为shortestPath以获取最短路径时,该查询会起作用:

MATCH (from), (to) , 
paths = allSimplePaths((from)-[*]->(to)) 
WHERE from.ID ='3007' AND to.ID in ['5575','8150', '3674']
Return paths
返回错误消息:

Invalid input '(': expected an identifier character, node labels, a property 
map, a relationship pattern, ',', USING, WHERE, LOAD CSV, START, MATCH, UNWIND, 
MERGE, CREATE, SET, DELETE, REMOVE, FOREACH, WITH, CALL, RETURN, UNION, ';' or 
end of input (line 2, column 23 (offset: 82))
"paths = allSimplePaths((from)-[*]->(to)) "

neo4j REST API支持
所有SimplePath
所有路径
,但不支持Cypher

要获得与
所有路径
等效的路径,只需执行以下操作:

MATCH (from), (to), paths = (from)-[*]->(to)
WHERE from.ID ='3007' AND to.ID in ['5575','8150', '3674']
Return paths

您将需要使用RESTAPI来使用
所有SimplePath

是否确实要使用“所有路径”?这可能会产生大量数据,并对性能产生严重影响。我仍在用我的数据进行实验,以找到最佳查询。