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Posted to jira@arrow.apache.org by "David Li (Jira)" <ji...@apache.org> on 2022/07/20 11:50:00 UTC

[jira] [Commented] (ARROW-17141) [C++] Enable selecting nested fields in StructArray with field path

    [ https://issues.apache.org/jira/browse/ARROW-17141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17568991#comment-17568991 ] 

David Li commented on ARROW-17141:
----------------------------------

Presumably a binding to the {{struct_field}} kernel could do this

> [C++] Enable selecting nested fields in StructArray with field path
> -------------------------------------------------------------------
>
>                 Key: ARROW-17141
>                 URL: https://issues.apache.org/jira/browse/ARROW-17141
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Rok Mihevc
>            Priority: Major
>              Labels: kernel
>
> Currently selecting a nested field in a StructArray requires multiple selects or flattening of schema. It would be more user friendly to provide a field path e.g.: field_in_top_struct.field_in_substruct.



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