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Posted to issues@arrow.apache.org by "Francois Saint-Jacques (JIRA)" <ji...@apache.org> on 2019/06/26 16:29:00 UTC

[jira] [Commented] (ARROW-5745) [C++] properties of Map(Array|Type) are confusingly named

    [ https://issues.apache.org/jira/browse/ARROW-5745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16873499#comment-16873499 ] 

Francois Saint-Jacques commented on ARROW-5745:
-----------------------------------------------

Just note that for PrimitiveArray, it doesn't even return the same type (Buffer* instead of Array*).

> [C++] properties of Map(Array|Type) are confusingly named
> ---------------------------------------------------------
>
>                 Key: ARROW-5745
>                 URL: https://issues.apache.org/jira/browse/ARROW-5745
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Benjamin Kietzman
>            Assignee: Benjamin Kietzman
>            Priority: Major
>
> In the context of ListArrays, "values" indicates the elements in a slot of the ListArray. Since MapArray isa ListArray, "values" indicates the same thing and the elements are key-item pairs. This naming scheme is not idiomatic; these *should* be called key-value pairs but that would require propagating the renaming down to ListArray.



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