Duplicate a subgraph

Neo4j Graph Platform Cypher
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21

I already gave you all information in other topic:

CALL gds.graph.project(
    "graph",            
    "*",             
    "*"               
)
YIELD graphName AS graph, nodeProjection, nodeCount AS nodes, relationshipProjection, relationshipCount AS rels

CALL gds.wcc.write('graph', { writeProperty: 'componentId' })
YIELD nodePropertiesWritten, componentCount;

CALL gds.graph.drop('graph', false) YIELD graphName;

So after you can change the 0 by the componentId you want:

MATCH (n)
WHERE n.componentId = 0
WITH collect(n) AS nodes
CALL apoc.refactor.cloneSubgraph(nodes)
YIELD input, output, error
RETURN input, output, error;

If you know which nodes you want to duplicates, you can change the WHERE clause in the previous query to select only the nodes you want.

22

Hey Cobra, thank you for your answers!
I only have the apoc library my version of neo4j is 3.5.30
so I tried to create a new graph, a simple one that looks loke this:

image
image1236×704 54.5 KB

and I tried to duplicate query like this:

MATCH (n)
WHERE n.name = "Graph1" AND WHERE ID(type) ="CellType"
AND WHERE ID(type)="Function" AND WHERE ID(type) = "cellInstance" And WHERE ID(type) ="Connection"
AND WHERE ID(type) = "Variable"
WITH collect(n) AS nodes
CALL apoc.refactor.cloneSubgraph(nodes,[rel in relationships Where type(rel) = ‘From_Graph’ AND Where type(rel) =’FROM_TYPE’ Where type(rel) = ‘CELL_TYPE_FUNCTION’ AND Where type(rel) = ‘FROM_CELL’ AND Where type(rel) = ‘FUNCTION_INPUT_VARIABLE’ AND Where type(rel)= ‘TO_CELL’,AND Where type(rel) = ‘Functions_VARS’ ])
YIELD input, output, error
RETURN input, output, error;
still doesn't work for me :(
any suggestions?

23

You must use the latest version of Neo4j which is 4.4.6 then install GDS plugin on the database to use the queries I gave you.

24

Isn't there any other way to do it with this query you offered and use apoc only?
MATCH (n)
WHERE n.name = "Graph1"
WITH collect(n) AS nodes
CALL apoc.refactor.cloneSubgraph(nodes)
YIELD input, output, error
RETURN input, output, error;

25

No because you need GDS to tag nodes correctly. Moreover Neo4j 3.5 is no longer maintained so you must upgrade.

26

Ok, so i'll try to upgrade it and use the queries you offered. i'll let you know if I succeeded
Cobra thank you so much for trying to help me I really
appriciate it.
have a lovely weekend!