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Questions tagged [memgraphdb]

Use this tag for questions related to Memgraph streaming graph database.

Memgraph is an open source graph database built for real time streaming data, compatible with Neo4j. It is an in-memory graph database that uses Cypher as a query language. Memgraph can be extended with graph algorithms that are part of Memgraph Advanced Graph Extensions (MAGE). Graphs can be visualized using Memgraph Lab application.

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Problem with tree time and Cypher query in Memgraph

I have created a time tree in Memgraph, I ran the queries individually, and I am getting the correct result. But if I run them together as part of the same query, I get a null set. Why is that so? memgraph> MATCH (y:YEAR…
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How to increase control procedure memory in Memgraph?

I am trying to increase control procedure memory usage with following code: match (n)-[e]->(m) with collect(e) as edges call super_awesome_module.do_something(edges) MEMORY UNLIMITED YIELD * RETURN *; I get a following message error:Client received…
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I'm receiving a NetworkX related error on Memgraph startup

When I start Memgraph I can't access query modules. Right after the startup, I get ImportError for the NetworkX module. I've checked and I can see that I have NetworkX installed. I've also tried to reinstall Mmegraph but I had no luck. The error is…
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Why the replication in Memgraph?

What’s the major reason for Memgraph to support replication if it’s Cloud ready? What are the benefits? I've also seen that both Azure and AWS support replication as well
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Are Graph Neural Networks algorithm supported in Memgraph?

On the documentation page for Graph Neural Networks (GNN) it says that it is not implemented in Memgraph. Is there some workaround for it so that I can use it? EDIT: it seems that GNN was addeded in the meantime since I've asked the question. I've…
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Can I connect to Memgraph using Go?

I'd like to connect from Go to the running instance of the Memgraph database. I'm using Docker and I've installed the Memgraph Platform. What exactly do I need to do?
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How to copy data from desktop to Memgraph DB?

I have a Memgraph on my desktop with a bund of data. I need that data on my laptop where I have another Memgraph running. How can I do that? Can I just copy the DB directory?
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Which Linux distributions are supported by Memgraph?

I don't want to build anything from source but I'd like to use "out-of-the-box" Linux packages of Memgraph. Which Linux distributions are supported?
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Can I specify the labels in subclasses when using GQLAlchemy and Memgraph?

My issue is a large number of inherited labels. Sometimes there are quite a few superclasses and I don't want to inherit all labels. Is it possible, when using the Python OGM in GQLAlchemy, to specify the labels manually in subclasses?
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Are the shortest path calculations in Memgraph optimized to work with dynamic graphs?

I have a question about the BSF algorithm implementation in Memgraph. Are shortest path calculations optimized to work with dynamic and streaming graphs? In my data set, the number of nodes and edges will grow. I need to maintain a table of shortest…
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Can I connect to Memgraph database using JavaScript?

Can I connect to the Memgraph database using JavaScript? Do I need to install some server-side components?
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How can I connect to Memgraph database and executes queries using Rust?

I'm starting to learn Rust. I want to try out connecting to the Memgraph database and executing a query. I'm running a local instance of Memgraph Platform in Docker. I'm running it with default settings.
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Can I connect to Memgraph using websocket?

Does Memgrpah support connections over WebSocket? I couldn't find the minimal required code to do that.
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Connecting to Memgraph graph database from Python

What do I need to have in place to connect to a running instance of Memgraph from Python?
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Difference with queries regarding BFS

Could someone give me some hints about this? This query works: match path=(n)-[*bfs..10]->(m) return path limit 1; however I get a memory limit exceed exception with this one: match path=(n)-[*bfs..1000]->(m) return path limit 1; Shouldn't the…
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