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xmlsysop · 02-15-2022

Hello. Can I get sum of properties in relationship list? For example, MATCH (c1:Company {name: ‘Apple’})-[r:hasVendor*]->(c2:Company) RETURN c2.name, sum(r.marketShare); But it makes error ‘type mismatch’ as blow. Type mismatch: expected Map, Node, ...

xmlsysop · 06-15-2021

Hello. Thanks in advance if anyone help me with this. -- Status -- I have 1.5M Document nodes, 4.6M Keyword nodes, and 242M relations between them in Neo4j 4.1.9 Community Edition, and all properties are indexed. Documents nodes have created date pr...

xmlsysop · 02-22-2022

You saved me from trouble. (: I really appreciate your help.

xmlsysop · 06-18-2021

Keywords only have a name. Our keywords include not only nouns but also etc. such as number, so it is possible in my case. Reducing keywords is one of the simplest way, but you can't do that.

xmlsysop · 06-17-2021

Thank you for your replies and help, and these are really helpful. We currently collect news articles and its keywords everyday and store them in a relational database. However, as the amount of data increases, the speed of queries like Cypher I wrot...

xmlsysop · 06-17-2021

Thank you for your help. As your reply, I aggregate with respect to k, not k.name. But it is still slow, about 130sec. Here is the query plan for count(). Cypher version: CYPHER 4.1, planner: COST, runtime: INTERPRETED. 234430749 total db hits in ...

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How to get sum of properties in relationship list

My count() query is too slow

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