[jira] [Commented] (TINKERPOP-2516) Property folding has trouble with coalesce

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

    [ https://issues.apache.org/jira/browse/TINKERPOP-2516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17277056#comment-17277056 ] 

Stephen Mallette commented on TINKERPOP-2516:
---------------------------------------------

thanks for reporting this:

{code}
gremlin> g.V(v1).coalesce(has('xyz'),addE('self').to(v1).property('foo','bar')).property(id,102)
org.apache.tinkerpop.gremlin.structure.T$2 cannot be cast to java.lang.String
Type ':help' or ':h' for help.
Display stack trace? [yN]n
{code}

> Property folding has trouble with coalesce
> ------------------------------------------
>
>                 Key: TINKERPOP-2516
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2516
>             Project: TinkerPop
>          Issue Type: Bug
>          Components: process
>    Affects Versions: 3.4.9
>            Reporter: Christopher Smith
>            Priority: Major
>
> This appears closely related to TINKERPOP-2112. I had some working code that was appending {{.property(T.id, str)}} to the results of an {{addE}} call. However, I have refactored that code so that the call to set the ID is appended to a {{coalesce}} call:
> {code:java}
> gts.V(Vo).coalesce(
>   // guard condition
>   __.addE("rel").to(Vi).property("foo", bar)
> );
> {code}
> This formulation triggers the same {{T$2 cannot be cast to String}} error.



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