Neo4j

griffith · 02-10-2022

I'm using a database from a particular Udemy course. When I run MATCH (x)--(y)-->(z) RETURN x, y, z LIMIT 2 I get and when I run MATCH (x)--(y)-->(z) RETURN x, y, z LIMIT 3 (2 -> 3) I get As I see it, there are already three, non-repeat instances o...

griffith · 02-10-2022

I made an implicit assumption that because the first two paths were enough to form a third, Cypher would just use that third

griffith · 02-10-2022

That makes sense, thanks. So the second query's diagram could've matched the first query's diagram, but it just so happened that it didn't?

griffith · 02-10-2022

@glilienfield I guess there's a rule that any match to a MATCH query must consist of at least one component (node or relationship) that doesn't form part of the other matches?

griffith · 02-10-2022

I have three results in the second query, but those three results collectively involve five nodes which is what's unexpected

griffith · 02-10-2022

Not sure what you're saying, but it looks like you're saying that it would make the x, y, z triples that are matched explicit? It might not dispel my doubts, but it's a good idea; will do

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Don't fully understand what MATCH (x)--(y)-->(z) yields

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Re: Don't fully understand what MATCH (x)--(y)-->(z) yields

Re: Don't fully understand what MATCH (x)--(y)-->(z) yields

Re: Don't fully understand what MATCH (x)--(y)-->(z) yields