nodeLabels are not returned appropriately

[neo4j]

nodeLabels are not returned appropriately

[Hossein-Tohidi]

Thanks @FlorentinD, the logic you referred to makes sense to me and it works fine.

[FlorentinD]

@Hossein-Tohidi , thank you for reporting this issue.
I could further see, that it only occurs with the Arrow endpoint.

As an intermediate workaround, you could initialize the client with arrow=False.
You can track the progress at #564

[Hossein-Tohidi]

Thanks for the reply @FlorentinD. it is working fine with arrow=False and adding listNodeLabels=True option inside gds.graph.nodeProperties.stream function.

[Hossein-Tohidi]

I just realized that it is not working with separate_property_columns=True, option!

[FlorentinD]

Looking through your edits, it works if you specify listNodeLabels=True as well?
As the default is False, it makes sense this column is only present if you set it explicitly (see https://neo4j.com/docs/graph-data-science/current/management-ops/graph-reads/graph-stream-nodes/).

[Hossein-Tohidi]

Thanks again for your reply.
The following code, I expect to return the nodeLabels as well but it does not (it should be part of the column we pivot on that to get a wide table from a long table, I guess).

print(gds.graph.nodeProperties.stream(G, ["twl",'twu'],listNodeLabels=True, separate_property_columns=True))  
#   nodeId  twl   twu
#0       0  0.0   7.0
#1       1  0.0  20.0
#2       2  0.0  20.0

[FlorentinD]

Thanks for this find as well. We definitely missed out on tests for this feature on the client side :/

The PR is ready for review now with this fix as well.

The actual workaround for now it to not use arrow=False + separate_property_columns=True and widen the result yourself.
You can find the logic for this here.
Maybe you even have an idea for a better version?