[jira] [Updated] (ARROW-602) [C++] Provide iterator access to primitive elements inside a Column/ChunkedArray

["Antoine Pitrou (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Pitrou updated ARROW-602:
---------------------------------
    Labels: beginner good-first-issue newbie  (was: beginner newbie)

> [C++] Provide iterator access to primitive elements inside a Column/ChunkedArray
> --------------------------------------------------------------------------------
>
>                 Key: ARROW-602
>                 URL: https://issues.apache.org/jira/browse/ARROW-602
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Uwe Korn
>            Priority: Major
>              Labels: beginner, good-first-issue, newbie
>             Fix For: 7.0.0
>
>
> Given a ChunkedArray, an Arrow user must currently iterate over all its chunks and then cast them to their types to extract the primitive memory regions to access the values. A convenient way to access the underlying values would be to offer a function that takes a ChunkedArray and returns a C++ iterator over all elements.
> While this may not be the most performant way to access the underlying data, it should have sufficient performance and adds a convenience layer for new users.



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