see https://pypi.org/project/gremlinpython/ Gremlin-Python implements Gremlin within the Python language and can be used on any Python virtual machine including the popular CPython machine.
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Questions tagged [gremlinpython]
223 questions
0
votes
1 answer
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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- 19
0
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1 answer
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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0
votes
1 answer
Getting timeout error while connecting with AWS Neptune database from lambda function
I am trying to connect with the AWS Neptune database using gremlinpython library from the AWS Lambda function.
from gremlin_python.driver import client
query = "g.V().count()"
uri = "wss://aws-neptune-endpoint:8182/gremlin"
clientt =…
Ranjit Soni
- 594
- 6
- 19
0
votes
1 answer
Get score from AWS Neptune Search
I want to get the scores for each search result like you would be able to in elasticsearch. How do you do this through Neptune?
I'm using this gremlin query, but I'm not sure how you would get the score out of it.
limit = 100
g.withSideEffect(
…
Danny
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- 3
- 14
0
votes
1 answer
Neptune AWS sortOrder asc and desc don't give reverses of each other
I am searching for with my_table and I get all the tables I expect, sorted by score (though I am not sure if it's in the correct order since I don't know how to get the scores from elasticsearch).
When I reverse it (i.e. from sortOrder DESC to ASC),…
Danny
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- 14
0
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1 answer
Get or Create vertex/edge in Apache TinkerPop Gremlin in one query
How to get or create vertex/edge in Apache TinkerPop Gremlin in one query?
Currently I am doing,
id = None
if g.V().has('employee', 'name', 'thirumal').hasNext():
id = g.V().has('employee', 'name', 'thirumal').values('id')
else:
id = uuid4()
…
Thirumal
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0
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1 answer
How does AWS Neptune fts.maxResults affect the search results?
When I set the maxResults to 100, I get 20 results.
When I set the maxResults to 10, I get 1 result.
From the docs:
maxResults – The maximum number of results to return. The default is the index.max_result_window OpenSearch setting, which…
Danny
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- 14
0
votes
1 answer
Send string gremlin query to Amazon Neptune database using TinkerPop's gremlinpython
We can do the following to create a connection, and then attached the connection to the graph g object, and then use g to mirror gremlin query inline.
from gremlin_python import statics
from gremlin_python.structure.graph import Graph
…
user1187968
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1 answer
Gremlin query to group by multiple columns (from vertex, and edge)
I have a developer vertex and a project vertex and an edge with start date and end date properties.
A developer can work only on one project at a given point of time. Sometimes they are assigned to multiple projects with the same start date by user…
user2026504
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0
votes
1 answer
gremlin_python throws RuntimeError exception due to aiohttp.WSMsgType.closed when adding property to vertex
I received the following error when using gremlin_python to run a a Gremlin query to save a property to an existing vertex using Gremlin Server inside a docker container on my local machine.
…
Sam Martin
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2 answers
How to use multiple union step in gremlin query?
I want to convert following cypher query in gremlin but facing issue while using union.
match d=(s:Group{id:123})<-[r:Member_Of*]-(p:Person) with d,
RELATIONSHIPS(d) as rels
WHERE NONE(rel in rels WHERE EXISTS(rel.`Ceased On`))
return…
Ranjit Soni
- 594
- 6
- 19
0
votes
2 answers
How to use pagination in Apache TinkerPop Gremlin?
How to use pagination in apache tinker pop gremlin? Trying to get both count and the vertex properties
g.V().hasLabel('person').fold().as('persons','count').
select('persons','count').
by(range(local, 2, 4)).
…
Thirumal
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0
votes
1 answer
How to update an edge properties if it already exists?
I'm writing a gremlin python query with the intention that
Create an edge if it doesn't exist
Update the edge properties if it does
I read some answers here already and got the first part figured out using coalesce but I'm not sure how to update…
bandzbond
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- 2
0
votes
1 answer
How to filter datetime using gremlin_python
I want to filter the vertex based out of a date. I don't know from which package i have to refer the gt
graph = Graph()
remote_connection = DriverRemoteConnection(gremlin, 'g')
g =…
Gowtham Ravichandran
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- 4
0
votes
3 answers
Gremlin how to filter the results of a projection?
I have a query like this
g.V.has('id', 1).outE()
.project('edge','vertex')
.by(valueMap('number'))
.by(inV().valueMap())
it returns a dictionary that looks like this:
{"edge": { ...}, "vertex": { ..., "city": a value,…
lalala
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