[jira] [Commented] (ARROW-388) [C++] Add a "shifted file" abstraction

["Wes McKinney (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16106221#comment-16106221 ] 

Wes McKinney commented on ARROW-388:
------------------------------------

This is no longer urgent as refactoring in the IPC code paths made this generally unnecessary

> [C++] Add a "shifted file" abstraction
> --------------------------------------
>
>                 Key: ARROW-388
>                 URL: https://issues.apache.org/jira/browse/ARROW-388
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Wes McKinney
>
> In an IPC setting, you may wish to interpret a file-like object by some other frame of reference. For example, you may want to consider the middle of a file to be the initial 0 position -- this would all be done with zero copy and no "work" performed, strictly passing through method calls to the underlying file interface. Related to ARROW-387, ARROW-384



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