Neo4j

manish_giri_me · 01-14-2020

Hello, I've been trying to find some documentation for the pipe operator (|) when used with list operations in Cypher, but I couldn't find anything. This documentation on the FOREACH clause also uses | in the query, but again, there's no reference to...

manish_giri_me · 01-13-2020

I'm trying to use the all() Predicate Function in my query, but it's not working as expected, so I decided to experiment a little with the Movies graph. Given that I want to find all paths where actors acted in movies that were released after 2000, I...

manish_giri_me · 01-08-2020

I have a relatively large database that takes a long time to start up (in Neo4j Desktop), the first time. During this time, while the database is still starting up, neo4j desktop throws a timeout error message and "stops" the database, even though th...

manish_giri_me · 01-08-2020

I'm trying to run the neo4j-admin memrec tool to get the recommended memory config for my database, but it doesn't work, and shows "Unable to find any JVMs matching version 1.8". Here is the output - Is there a way of running the tool with JDK 11? T...

manish_giri_me · 01-08-2020

I have a read query (call it Query Y) that has been going on for over 8 hours. My dataset is large, but it is not that large that a query would take over 8 hours. A similar query (call it Query X) to this one completed in 61 minutes, before I started...

manish_giri_me · 01-14-2020

Understood! Thank You again!

manish_giri_me · 01-14-2020

Thank You so much! Your explanation makes it a lot more clearer. Just so I know I'm getting it right - andrew.bowman: in this case using a list comprehension to filter the list such that every node in nodes(path) meets the criteria of being a :M...

manish_giri_me · 01-14-2020

Thank You! I guess the comparison between all() and any() makes it clear. For some reason, I thought using WHERE, like (WHERE (n:Movie)), inside all() would first filter out all Movie nodes, and then apply the all() predicate for all such nodes.

manish_giri_me · 01-13-2020

Hello, Thank You for responding! I have a question about this - ganesanmithun323: But , here, when you do nodes(path) , it includes the p:Person node too , so the person node cannot qualify the n:Movie filter .. since one node failed the condint...

manish_giri_me · 01-08-2020

Also, there's some context as to why I'm running the project on a spinning disk (my personal laptop) instead of an SSD. I'm working on my thesis with Neo4j for the last couple of years now (back when Neo4j was in v2), and during this time, I've tried...

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Documentation for using pipe (|) operator for list operations in Cypher

Understanding the all() Predicate Function

Neo4j desktop times out even though database does start up

Memrec tool doesn't work with JDK 11

Diagnosing long running queries

Re: Documentation for using pipe (|) operator for list operations in Cypher

Re: Understanding the all() Predicate Function

Re: Understanding the all() Predicate Function

Re: Understanding the all() Predicate Function

Re: Diagnosing long running queries