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Posted to dev@tinkerpop.apache.org by "Daniel Kuppitz (JIRA)" <ji...@apache.org> on 2018/11/05 16:14:01 UTC

[jira] [Updated] (TINKERPOP-2059) Modulation of valueMap()

     [ https://issues.apache.org/jira/browse/TINKERPOP-2059?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Kuppitz updated TINKERPOP-2059:
--------------------------------------
    Labels: breaking  (was: )

> Modulation of valueMap()
> ------------------------
>
>                 Key: TINKERPOP-2059
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2059
>             Project: TinkerPop
>          Issue Type: Improvement
>          Components: process
>    Affects Versions: 3.3.3
>            Reporter: stephen mallette
>            Assignee: Daniel Kuppitz
>            Priority: Major
>              Labels: breaking
>
> Allow for modulation of the {{valueMap()}} step with {{by()}} and possibly {{with()}} to make it's usage more flexible and consistent. The problem presented in relation to this change is how to easily unwrap the general multi-property structure of {{valueMap()}}
> {code}
> g.V().has('person','name','marko').
>   valueMap('name','age').
>     by(unfold())
> {code}
> which would yield: {{[name:marko,age:29]}} rather than: {{[name:[marko],age:[29]]}}. Obviously the {{by()}} is just a map over the values in the list of values returned from properties. 
> Please see the [DISCUSS|https://lists.apache.org/thread.html/91a3c980b5968c78638383dfa11f44ee14fc114ddc3d29e762e56f1f@%3Cdev.tinkerpop.apache.org%3E] thread for additional thoughts on the matter to consider.



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