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Posted to jira@arrow.apache.org by "Antoine Pitrou (Jira)" <ji...@apache.org> on 2021/03/22 16:35:00 UTC

[jira] [Commented] (ARROW-9434) [C++] Store type_code information in UnionScalar::value

    [ https://issues.apache.org/jira/browse/ARROW-9434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17306356#comment-17306356 ] 

Antoine Pitrou commented on ARROW-9434:
---------------------------------------

[~kszucs] Is this something you want to do for 4.0.0 ?

> [C++] Store type_code information in UnionScalar::value
> -------------------------------------------------------
>
>                 Key: ARROW-9434
>                 URL: https://issues.apache.org/jira/browse/ARROW-9434
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Krisztian Szucs
>            Priority: Major
>             Fix For: 4.0.0
>
>
> The format allows duplicated types in unions, so in order to properly construct an array from a unionscalar we need to know which type to use. Currently we only store the value as another scalar.



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