APOC Lib for AWS Neptune

The method for cloning a subgraph in Neptune will depend on the size of the subgraph. Smaller subgraphs can be duplicated using a method similar to what is detailed in this StackOverflow post: https://stackoverflow.com/questions/51900116/gremlin-clone-a-node-and-its-edges

Larger subgraphs may require using Neptune's Export utility [1], along with the method to provide a traversal to filter all of the relevant vertices and edges for export. This would provide the exported data in Neptune's bulk load CSV format that could then be modified and loaded back into Neptune using the bulk loader feature.

[1] https://docs.aws.amazon.com/neptune/latest/userguide/neptune-export.html

In AWS Neptune, you can use the Gremlin traversal language to clone a sub-graph (including relationships).

Here's an example of how you can do this:

// Define the starting vertex for the sub-graph you want to clone
g.V().has('vertex_id', '12345').as('original')

// Use the `clone` step to create a copy of the original vertex
.clone().as('clone')

// Use the `addE` step to add edges from the original vertex to the clone
.addE('relationship_label').from('original').to('clone')

You can also use the store step to save the cloned sub-graph to a variable for further processing or to persist it to a new location in the graph.

g.V().has('vertex_id', '12345').as('original').clone().store('cloned_subgraph')