Neo4j

magaton · 03-16-2022

Hello, I have a following model: (Client)-[:HAS_SPONSOR]->(Client) and (Client)-[:HAS_LEADER]->(Client) Now starting from Client X I would like to traverse the sponsorship tree UNTIL: either the max number of hops (maxHops) has been reached ORthe wh...

magaton · 02-07-2022

Hello, I have the following path: (a:Node)-[REL1]->(b:Node)-[REL1]->(c:Node)-[REL2]-(d:Node)-[REL1]->(e:Node)-[REL2]->(f:Node) Now, REL1 and REL2 can be modelled either as 2 relationship types that can COEXIST between 2 nodes or the same relationshi...

magaton · 09-20-2021

Hello, I am building a graphql api on the top of neo4j. My model looks like following: (Client)-[:HAS_SPONSOR]->(Client) (Client)-[:MADE]->(Order) Now, when listing all orders for my downline (clients up to N levels below me) I end up with the follo...

magaton · 09-13-2021

Hello, could someone please help, it's rather urgent. I am using an old version of neo4j-graphql-js (with grandstack) but I imagine it could be the same problem with neo4j-graphql. My graph is (Client)-[:HAS_SPONSOR]->(Client) Client type in schema: ...

magaton · 05-05-2021

Hello, I have raised this problem on discord, hopefully, it will get some more attention here. My model: Period (id, year, startDate, endDate, type) Indices are on all fields. startDate and endDate are of type Date Client(login, type) Indices are on...

magaton · 03-17-2022

Thank you for the quick reply and the effort you took. Much appreciated. There are a few problems with your proposed solution: maxHops are dynamic, so it is not possible to do variable length relationship traversal, like you didthe correct number of ...

magaton · 02-08-2022

glilienfield: match p = (:Node {name:'a'})-[:REL1|REL2*]->(:Node {name:'f'}) with p, relationships(p) as relationships where any(i in relationships where i.relationshipProperty = 'value' and i:REL1) and any(i in relationships where i. i.relation...

magaton · 02-07-2022

Great, thank you! I am not sure how it would work with relationship properties (single rel type REL) when one cannot use property filtering in WHERE EXISTS

magaton · 09-22-2021

Yes, I figured out that I need to wrap the whole query in apoc.cypher.run, not just the last few lines of it, since then it will be executed for each row. All good now, thanks!

magaton · 09-20-2021

Hi, sorry for the late response. Cypher directive on a field doesn't seem to be an option, since I would need to traverse the whole sponsorship tree on both level and typeLevel. Custom resolver, too, since I need a portable solution (we are using spr...

Neo4j

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Traverse relationship type until the node with another relationship type has been found

Find relationship in the path by type or property

Dynamic aggregation

Map projection and nested type

Performance problems with apoc.path.expand and apoc.run.cypher

Re: Traverse relationship type until the node with another relationship type has been found

Re: Find relationship in the path by type or property

Re: Find relationship in the path by type or property

Re: Dynamic aggregation

Re: Map projection and nested type