Neo4j

mike2 · 06-20-2020

Python Driver: 4.0.0 NEO4J Version: 4.0.5 Enterprise running in an AWS EC2 VM When I run this query: call{ MATCH (u:User {user_id:$owner_id}) OPTIONAL MATCH (u)-[:USER]-(mf:Image) with u, collect(mf.ver...

mike2 · 06-17-2020

Using Neo4j 4.0.5 on Desktop or an Enterprise instance running in EC2: I had the following query in my ETL code that was loading my Graph Database from my old SQL database. There is an error in the query that I would have expected Cypher to return an...

mike2 · 06-16-2020

NEO4j 4.0.5 in both Desktop and on a standalone Enterprise single instance in an EC2 VM. When I run the following query with the SKIP and LIMIT in them I get some duplicates on subsequent pages. (groups of 50). call{ MATCH (u:User {us...

mike2 · 06-12-2020

I have been trying to get any Neo4j instance running in the cloud so I can work on my software. Today I finally got a Neo4j 4.0.5 Single instance running on AWS. It wasn't easy, and none of the instructions I could find were exactly correct (includin...

mike2 · 06-09-2020

I have been working on converting my project from SQL to Neo4j and have gotten all my tests running and everything working on NEO4j Desktop on my local machine use 4.0.4, everything works fine. I have now been trying for several weeks to get it runni...

mike2 · 06-22-2020

Yes you can, do you have any specific questions about it? I just wrote a python script that connects to Postgres, reads all the data from my Postgres database and wrote it to Neo4j without any issues.

mike2 · 06-22-2020

All I was doing was picking Casual Cluster 4.0.5 from the AWS Marketplace and selecting the US-EAST2 region to deploy it on with t2 Medium machines (3) everything else was the defaults and it fails every time I tried. I have never gotten it to work a...

mike2 · 06-19-2020

As a followup I reran the query without the union or anything and the duplicates came up, the problem is only related to the dates. MATCH(f:Image) WITH f ORDER BY f.version_date DESC//, f.uid DESC SKIP ...

mike2 · 06-19-2020

The timestamps of some of the items are the same (They must have been changed as part of the same TXN when they were in Postgres and thus have the same timestamp.) Adding a second order by clause removes the duplicates on the subsequent pages. (Still...

mike2 · 06-19-2020

So on a whim I changed the order by from the version_date to the uid and suddenly no duplicates.

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Raise Neo4jError.hydrate(**metadata)\nneo4j.exceptions.CypherTypeError: Can't coerce `NO_VALUE` to List"

Why doesn't this query return an error

When I add a Skip/Limit to the query I start getting duplicates

Notes on getting Neo4j Running from Community AWS AMI

Can't get NEO4J 4 running (AWS or any Cloud Deployment)

Re: Use both neo4j and postgres in same project

Re: Can't get NEO4J 4 running (AWS or any Cloud Deployment)

Re: When I add a Skip/Limit to the query I start getting duplicates

Re: When I add a Skip/Limit to the query I start getting duplicates

Re: When I add a Skip/Limit to the query I start getting duplicates