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ASF GitHub Bot commented on TINKERPOP-3261:
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spmallette commented on PR #3483:
URL: https://github.com/apache/tinkerpop/pull/3483#issuecomment-4836970827
What are the implications for GraphML? Has that been considered? At minimum,
there are some documentation concerns to take into account. Maybe, there's a
knob on the IO builder to do the colon separator thingy. At least then it would
still work. maybe other knobs to help it work in different capacities? if you
don't want to figure it out for this PR, that's fine, create a JIRA that blocks
for official 4.x and add appropriate warning docs to explain the current
behavior ( i assume random label).
> Enable multiple label support on vertex with configurable label cardinality
> ---------------------------------------------------------------------------
>
> Key: TINKERPOP-3261
> URL: https://issues.apache.org/jira/browse/TINKERPOP-3261
> Project: TinkerPop
> Issue Type: Task
> Affects Versions: 4.0.0
> Reporter: Yang Xia
> Priority: Major
>
> Vertices are currently limited to a single immutable label assigned at
> creation. This prevents modeling common real-world scenarios where entities
> naturally belong to multiple categories (e.g., a person who is both an
> employee and a manager).
>
> Introduce a configurable LabelCardinality that controls how many labels a
> vertex may have and whether they can be mutated after creation. Three
> proposed modes: ONE (current behavior, default), ONE_OR_MORE (mutable,
> minimum one), ZERO_OR_MORE (fully flexible).
>
> New steps:
>
> - labels() — flatMap step emitting each label as a traverser
> - addLabel(String, String...) — add labels to a vertex
> - dropLabel(String, String...) — remove specific labels
> - dropLabels() — remove all labels
> Edge labels remain at cardinality ONE. The infrastructure would support
> future edge multi-label enablement without wire format changes.
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