Major Originally reported here:
https://groups.google.com/d/msg/aureliusgraphs/qKvGZOWpNtY/ivd6qc_iAAAJ
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.
I think this can be fixed by explicitly using:
public <V> VertexProperty<V> property(final VertexProperty.Cardinality cardinality, final String key, final V value, final Object... keyValues);
Currently the cardinality check is occurring by default but against the target graph and not the source graph (so you get the wrong cardinality).
- links to
