Support multi-properties in GraphBulkExecutor.
Gremlin API, supports:
Multiple properties (multi-properties): a vertex(edge) property key can have multiple values. For example, a vertex can have multiple "name" properties.
Properties on properties (meta-properties): a vertex(edge) property can have properties (i.e. a vertex property can have key/value data associated with it).
So, now it's impossible to upload data with such properties with GraphBulkExecutor.
At this time this feature is not on our road map. We will leave this marked as unplanned for now and will revisit this in upcoming cycles and will update here if this changes.
Thank you for your suggestion and votes.