Cardinality of properties in Subgraph

[Baek Hyun-wook]

Hi, 

I am working on Titan 1.0.0,
and I found the cardinality of properties are not preserved in the subgraph
generated by Gremlin 'Subgraph Step' (i.e. subgraph('sub').cap('sub')).

To be specific, in my case, I have several property keys with 'LIST' cardinality (e.g. propertyKey: created)
so that there can be multiple properties for those keys.
e.g.

gremlin> v.properties()

=>vp[created->true]

=>vp[created->false]

=>vp[created->true]

(properties also have nested properties so they are not just simple duplication of the same information)
 

However, when I generated subgraph from this graph,
only one of the properties using the same key is copied to the corresponding vertex in the subgraph.

Is there any way to preserve the Property Cardinality in the subgraph?

[Stephen Mallette]

That looks like a problem in TinkerPop - created an issue:

https://issues.apache.org/jira/browse/TINKERPOP-1088

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