[jira] [Commented] (TINKERPOP-3147) Prevent aggregate step from having multiple by modulators

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TINKERPOP-3147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17945164#comment-17945164 ] 

ASF GitHub Bot commented on TINKERPOP-3147:
-------------------------------------------

EchoNullify opened a new pull request, #3096:
URL: https://github.com/apache/tinkerpop/pull/3096

   TARGET 3.8-dev
   
   https://issues.apache.org/jira/browse/TINKERPOP-3147
   
   Prevent multiple by operators from being used for aggregate step by throwing IllegalStateException if modulateBy is called more than once.




> Prevent aggregate step from having multiple by modulators
> ---------------------------------------------------------
>
>                 Key: TINKERPOP-3147
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-3147
>             Project: TinkerPop
>          Issue Type: Improvement
>          Components: process
>    Affects Versions: 3.7.3
>            Reporter: Andrea C
>            Priority: Minor
>
> Aggregate step will ignore previous by modulators if multiple are specified, which can be misleading to the user. Instead, similar to https://issues.apache.org/jira/browse/TINKERPOP-3121 multiple by modulators should be prevented with aggregate.
> {code:java}
> gremlin> g.V().aggregate('x').by('name').cap('x')
> ==>[marko,vadas,lop,josh,ripple,peter]
> gremlin> g.V().aggregate('x').by('name').by('age').cap('x')
> ==>[29,27,32,35] {code}
>  
> Note that `store` step is an alias to `aggregate` and should also be prevented from having multiple by modulators.



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