[
https://issues.apache.org/jira/browse/ARROW-17313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17575902#comment-17575902
]
Antoine Pitrou commented on ARROW-17313:
----------------------------------------
There's not much to elaborate. {{RandomAccessFile::GetStream}} gives you a
stream over a subrange of a file. See API docs:
https://arrow.apache.org/docs/cpp/api/io.html#_CPPv4N5arrow2io16RandomAccessFile9GetStreamENSt10shared_ptrI16RandomAccessFileEE7int64_t7int64_t
> [C++] Add Byte Range to CSV Reader ReadOptions
> ----------------------------------------------
>
> Key: ARROW-17313
> URL: https://issues.apache.org/jira/browse/ARROW-17313
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, Python
> Reporter: Ziheng Wang
> Assignee: Ziheng Wang
> Priority: Major
>
> Sometimes it's desirable to just read a portion of a CSV. The best way to do
> that is to pass in a list of byte ranges to CSV read options that specify
> where in the CSV you want to read. These byte ranges don't necessarily have
> to be aligned on line break boundaries, the CSV reader should just read until
> the end of the line, and skip anything before the first line break in a byte
> range.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
