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https://issues.apache.org/jira/browse/TINKERPOP-2777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cole Greer closed TINKERPOP-2777.
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Fix Version/s: 4.0.0
Assignee: Cole Greer
Resolution: Fixed
Resolved by https://github.com/apache/tinkerpop/pull/3458
> Allow `V()` to accept a traversal such as `select(<label>)`
> -----------------------------------------------------------
>
> Key: TINKERPOP-2777
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2777
> Project: TinkerPop
> Issue Type: Improvement
> Components: process
> Affects Versions: 3.6.1
> Reporter: Taylor Riggan
> Assignee: Cole Greer
> Priority: Minor
> Fix For: 4.0.0
>
>
> Users are unable to use previously fetched components of a traversal and
> supply them as IDs within a mid-traversal `V()` lookup.
> As shown on StackOverflow:
> [https://stackoverflow.com/questions/73137055/how-to-select-value-to-be-the-value-in-the-property-step-in-gremlin/73138481#comment129175360_73138481]
> {{{}g.inject([['twitterPostId': 'tay','like': 'true','retweet':
> 'false'],['twitterPostId': 'fay','like': 'true','retweet': 'false'
> ]]){}}}{{{}.unfold(){}}}
> {{{}
> .V(select('twitterPostId')).{}}}{{{}fold(){}}}{{{}.coalesce({}}}}.{{{}unfold(),{}}}{{{}addV().property(t.id,
> select('twitterPostId').unfold()){}}}
> No error is returned in this case. The query returns zero results.
> This can be repeated using the air routes dataset{{{}:{}}}
> {{g.inject(['1','2','3']).as('a').V(select('a'))}}
> Returns 0 results
> {{g.V(['1','2','3'])}}
> Returns:
> {{[v[1], v[2], v[3]]}}
>
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