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Posted to jira@arrow.apache.org by "Neal Richardson (Jira)" <ji...@apache.org> on 2021/09/05 15:26:00 UTC

[jira] [Closed] (ARROW-13770) [R] Add MapType and MapArray support to R bindings

     [ https://issues.apache.org/jira/browse/ARROW-13770?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neal Richardson closed ARROW-13770.
-----------------------------------
    Resolution: Duplicate

> [R] Add MapType and MapArray support to R bindings
> --------------------------------------------------
>
>                 Key: ARROW-13770
>                 URL: https://issues.apache.org/jira/browse/ARROW-13770
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: R
>            Reporter: Ian Cook
>            Priority: Major
>
> It would be nice if the R bindings included some support for [MapType|https://github.com/apache/arrow/blob/20885df121266a8519692c7630c98beb570f3b47/cpp/src/arrow/type.cc#L424] and [MapArray|https://github.com/apache/arrow/blob/71a57b156a077de29a879fd5627e366684c140ac/cpp/src/arrow/array/array_nested.cc#L283]. For example, when a _named_ R vector is converted to an Arrow Array, it would become a MapArray  instead of a ListArray, with the names as the keys and the values as the items.



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