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From "Feng Guangyuan (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (ARROW-33) C++: Implement zero-copy array slicing
Date Fri, 01 Apr 2016 12:23:25 GMT

    [ https://issues.apache.org/jira/browse/ARROW-33?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15221449#comment-15221449
] 

Feng Guangyuan edited comment on ARROW-33 at 4/1/16 12:22 PM:
--------------------------------------------------------------

Issue resolved by pull request 56.
https://github.com/apache/arrow/pull/56

However, there are some confusions.
1.If it's necessary to add the slicing methods into ListArray, UnionArray etc.
2.Before slice(...) returns an Array, which is better the Array contains a base class Buffer
or a derived Buffer.
3.null_bitmap also to be sliced concurrently may be better.
Please feel free to give me any advice.

Thanks. Uwe L. Korn.
: )



was (Author: qq272101359@163.com):
Issue resolved by pull request 56.
https://github.com/apache/arrow/pull/56

However, there are some confusions.
1.If it's necessary to add the slicing methods into ListArray, UnionArray etc.
2.Before slice(...) returns an Array, which is better the Array contains a base class Buffer
or a derived Buffer.
Please feel free to give me any advice.

Thanks. Uwe L. Korn.
: )


> C++: Implement zero-copy array slicing
> --------------------------------------
>
>                 Key: ARROW-33
>                 URL: https://issues.apache.org/jira/browse/ARROW-33
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Wes McKinney
>
> Sliced array results will retain a reference to the parent's data buffer



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