[jira] [Created] (TINKERPOP-2529) Global dedup() in reducing by() of group() detaches elements for OLTP

["Stephen Mallette (Jira)" <ji...@apache.org>]

Stephen Mallette created TINKERPOP-2529:
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             Summary: Global dedup() in reducing by() of group() detaches elements for OLTP
                 Key: TINKERPOP-2529
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2529
             Project: TinkerPop
          Issue Type: Bug
          Components: process
    Affects Versions: 3.4.10
            Reporter: Stephen Mallette
            Assignee: Stephen Mallette


When elements are detached they are not re-attached and thus prevent anything following `group()` from traversing them. For example:

{code}
g.V().both().
        group().by().by(out().dedup().fold()).
        unfold().
        select(Column.values).
        unfold().
        out()
{code}

When {{dedup()}} detaches the later attempt to traverse {{out()}} will produce no output as there are no edges on a detached object. I think we need to keep detachment in place for OLAP sake where I think this approach was envisioned. 



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