Using Neo4J 4.3.2 Enterprise
Before creating a graph projection, I transformed several node categorical properties into embeddings using one-hot encoding. One of these node properties was n.tier consisting of several levels (gold, silver, red, etc., ). A sample from the in memory graph where i filter on a particular tier looks like:
MATCH (g:Guest) where g.tierEmbedding[1] = 1.0
RETURN g.tierEmbedding, g.tier limit 3
And this returns:
g.tierEmbedding g.tier
[0.0, 1.0, 0.0, 0.0, 0.0] "Red"
[0.0, 1.0, 0.0, 0.0, 0.0] "Red"
[0.0, 1.0, 0.0, 0.0, 0.0] "Red"
Ensuring that the embeddings exist in the graph projection:
CALL gds.graph.streamNodeProperties('tableguests-complete', ['tierEmbedding'])
Results in (result is truncated):
nodeId nodeProperty propertyValue
0 "tierEmbedding" [1.0, 0.0, 0.0, 0.0, 0.0]
1 "tierEmbedding" [0.0, 1.0, 0.0, 0.0, 0.0]
All is good. Now from the graph projection, i want to create a subgraph of just "Red" Guests:
CALL gds.beta.graph.create.subgraph('tableguests-subgraph', 'tableguests-complete', 'n:Table OR (n:Guest AND n.tierEmbedding[1] = 1.0)', '*')
YIELD graphName, fromGraphName, nodeCount, relationshipCount
Gives the following error:
Failed to invoke procedure `gds.beta.graph.create.subgraph`: Caused by: java.lang.UnsupportedOperationException
Am i correct in assuming that the nodeFilter containing the n.tierEmbedding[1] = 1.0 is not allowed? This seems to be an appropriate cypher predicate for filtering nodes in the input graph.
