Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

As per AWS documentation, you can create a vertex in neptune with multiple labels separted by :: delimeter: https://docs.aws.amazon.com/neptune/latest/userguide/access-graph-gremlin-differences.html#feature-gremlin-differences-labels

When we try to create multiple labels for a vertex in localstack neptune, it treats the :: delimiter literally and created just one label with that delimiter as part of it.

Expected Behavior

Localstack neptune should create multiple labels the same way AWS does using :: delimiter.

How are you starting LocalStack?

With a docker-compose file

Steps To Reproduce

How are you starting localstack (e.g., bin/localstack command, arguments, or docker-compose.yml)

docker-compose.yml

Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

1. Attempt to create a vertex with multiple labels:
   curl -k "http://localhost.localstack.cloud:4510/?gremlin=g.addV('Label1::Label2::Label3')"
2. Query all vertices with Label1
curl -k "http://localhost.localstack.cloud:4510/?gremlin=g.V().hasLabel('Label1')"

Expected Result:
Created vertex should be returned with Label1
{"requestId":"a160c4e7-0ca3-4c67-88b9-c7fab89098e9","status":{"message":"","code":200,"attributes":{"@type":"g:Map","@value":[]}},"result":{"data":{"@type":"g:List","@value":[{"@type":"g:Vertex","@value":{"id":"91cd1439-883b-45cb-b147-7f9fedb6552c","label":"Label1:"}}]},"meta":{"@type":"g:Map","@value":[]}}}%

Actual Result:
Vertex is not returned:
{"requestId":"acee4c8d-d890-4464-b878-3c4120232dc3","status":{"message":"","code":200,"attributes":{"@type":"g:Map","@value":[]}},"result":{"data":{"@type":"g:List","@value":[]},"meta":{"@type":"g:Map","@value":[]}}}%

If we instead do a query with Label1::Label2::Label3, vertex is indeed returned. This means that the vertex is created with one label Label1::Label2::Label3 instead of 3 different labels:

{"requestId":"37864c4f-0e25-420a-9066-c0fe437a5974","status":{"message":"","code":200,"attributes":{"@type":"g:Map","@value":[]}},"result":{"data":{"@type":"g:List","@value":[{"@type":"g:Vertex","@value":{"id":"91cd1439-883b-45cb-b147-7f9fedb6552c","label":"Label1::Label2::Label3"}}]},"meta":{"@type":"g:Map","@value":[]}}}%

Environment

- OS:MacOS
- LocalStack Image: localstack/localstack-pro:latest

Anything else?

No response