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Questions tagged [amazon-neptune]

For questions related to Amazon Neptune, a graph database service which supports both Property Graph and RDF graph models, as well as their respective query languages Apache TinkerPop Gremlin, openCypher and SPARQL.

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930 questions
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edit sack() value depending on path

I have three paths leading to two goals. All edges have a different strength and I collect them with sack(). I want to weigh some of the paths more heavily than the others (independent of the edge strength). in this sample: the paths via an…
Meike
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Opencypher Neptune db create ~id field with custom value using opencypher

I want to set my own id to the node I create using opencypher I am using below query CREATE (n:person {ID:'myid', id: 'abc',name:'abcname'}) it created below row {'~id': '7638bbd4-900d-4b15-b451-5eb848a3db19', '~entityType': 'node', '~labels':…
Jigar Gajjar
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"Write" Transactions don't work when using C#/Node.js with Amazon Neptune

I am able to connect to Neptune and was able to add some data to it with no issues. However, when I tried the code at https://tinkerpop.apache.org/docs/current/reference/#gremlin-dotnet-transactions it doesn't seem to work. I receive following…
user203687
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GremlinPython add connection and request timeout to DriverRemoteConnection with aiohttp

I am upgrading the gremlinpython package from 3.4 to 3.5 As part of the upgrade, tornado has been removed and only aiohttp is supported. Before, to create a DriverRemoteConnection with a connection and request timeout, I used the following code from…
Toussah
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Slow insertion using Neptune and Gremlin

I'm having problems with the insertion using gremlin to Neptune. I am trying to insert many nodes and edges, potentially hundred thousands of nodes and edges, with checking for existence. Currently, we are using inject to insert the nodes, and the…
ronenpi18
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How to implement Gremlin query corresponding to Neo4j cypher query?

I have the following Cypher query(neo4j) and want to convert it to a Gremlin query. MATCH d=(a:Actor {id:" + entityId +'})-[r:ACTING_IN*0..2]-(m) WITH d, RELATIONSHIPS(d) AS rels WHERE NONE (rel in r WHERE rel.Type = "Hollywood") RETURN…
Ranjit Soni
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AWS Neptune: More performant to drop Edges before Vertices?

Using - Neptune Engine: 1.0.5.1, Apache Tinkerpop: 3.5.2 My question is in regard to the performance of Vertex removal - it is not about the loading of the Vertices. We have a cron job that clears out a limited number (1000) of "expired"…
Hallam
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'set intersection' vs. 'has path to' and Sack()

The query starts at the vertex 'me'. I wish to find all A-vertices that are connected to my B-vertex and one of my C-vertices. A person (like me) is always connected to exacty one B-Vertex, but several C-vertices. Also, the C-vertices connected to…
Meike
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Optimize NeptuneDB Gremlin query

vehicles --> accounts --> organizations <-- users We have the above graph structure where vechicles , accounts, organizations and users are vertex labels and the arrows indicate the edge direction. Consider the following number of vertices…
zXor
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Gremlin slow joinTime on Neptune

I have an issue with a request performance in Neptune. I have a graph like this : hasId('A_id') (count: 1) -> out('has_group') (count: 12) -> out('has_class').hasLabel('C') (count: 9751) -> out('has_type').hasLabel('D') (count: 9749)…
Pred05
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add Sack value of different paths

I have a graph with one start-node and two goal-vetices. Two paths lead to the first goal, another path to the second. I want to find all paths to all goals and collect their weight (sack(sum)). For this I use sack to collect edge weights along the…
Meike
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Neptune: feature similar to Alias switching in ElasticSearch

I have a Elasticsearch and Neptune database, only graph relations are store in Neptune. I'm doing "Alias Switching" in ES, is there a feature like this in Neptune?
user1187968
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Remove or replace id with entityId in gremlin response

Using Strategy I'm able to transform g.V(id) to g.V().has("entityId", id) But is there a way I can remove id from gremlin output or replace it with entityId? Without making changes at the serializer level?
Harshit Sharma
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How to set current datetime in gremlin console?

How to set current DateTime in the gremlin console? I need to add an audit field created_on with current_timestamp as default value Eg: g.addV('student').property('name', 'Thirumal').property('created_on', datetime()) In, the above query, I am…
Thirumal
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Gremlin - extracting T.id and T.label from valueMap

This question is related to this post that Kelvin Lawrence answered very helpfully, wanted to post it as a separate question bec the first question was answered well already. From this…
Programjon
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