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Comments on Search paths where all nodes are in a relationship with same node

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Search paths where all nodes are in a relationship with same node

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Using the below graph as an example: I am trying to determine all Persons which are_sons of Persons all born in the same country. Graph

Is there an elegant way to achieve this with Cypher?

cypher neo4j
posted almost 4 years ago
4y ago
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Guilherme Costa‭
70 reputation 5 1 10 4
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r~~‭ wrote almost 4 years ago
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I'm having a hard time understanding exactly what you want from your query. Can you detail it in some sort of pseudocode instead of a sentence? (For example, do any of the nodes in this example graph match your query criteria? If ‘Ann’ is a match, is it because all of her parents which have a birth country have the same birth country? Or is it because all of her non-adoptive parents have the same birth country? Or is it that she has at least two parents with the same birth country?)

Guilherme Costa‭ wrote almost 4 years ago · edited almost 4 years ago
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What I want is for Ann to be returned because all her Parents are from the USA.

The reason why I introduced "adoptive" parents is because: 1- This is an example (I'm not actually working with a Graph with parents ;) ) 2 - I wanted to make it clear that you do not know how many parents a person has -> so has not to accept "counting 2" strategies. Maybe I should have a picked a complete abstract example.

r~~‭ wrote almost 4 years ago
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So should Steve be linked to USA in the graph then?

Guilherme Costa‭ wrote almost 4 years ago
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Of course... Really sorry about that. Updated the picture