Neo4j

wdmzssyh · 02-01-2020

I have tried profiling the following simple cypher query: profile match (a:A)-[r:R]->(b:B) return * The plan is as follows: NodeByLabelScan. According to neo4j statistics, it is clear the first step, NodeByLabelScan cardinality can be estimated wi...

wdmzssyh · 02-01-2020

I am a 5th-year PH.D. student at Arizona State University, US. My research focus is on database systems, spatial data, graph data.

wdmzssyh · 02-04-2020

I think the cache will be used inherently. You do not need to explicitly modify the cypher query. PS: Why not use match (loc:CS_LOCATION) where loc.id in [id1, id2]

wdmzssyh · 02-04-2020

Thanks a lot! andrew.bowman: so it can make a reasonable guess from the counts store for the relationships going to :B nodes. This "guess" is what I am interested in. It should rely on some statistical information. Could you point me to the so...

wdmzssyh · 02-02-2020

Thanks for the information. I was using the spatial extension package of neo4j. But it seems the spatial index is inherently integrated into the neo4j main features now.

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How the cardinality of the pattern (a:A)-[r:R]->(b:B) is estimated?

Hello from Yuhan Sun, Ph.D. student from ASU, US

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Re: How the cardinality of the pattern (a:A)-[r:R]->(b:B) is estimated?

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