Taylor Riggan created TINKERPOP-2777:
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Summary: 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
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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