[ 
https://issues.apache.org/jira/browse/ARROW-12509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17466919#comment-17466919
 ] 

Antoine Pitrou commented on ARROW-12509:
----------------------------------------

You can find the in-progress implementation here btw:
https://github.com/apache/arrow/compare/master...pitrou:ARROW-12509-fs-file-creation#diff-04dcab9ef46b1170cab130885a433e4de8b459944a8f2765f9ca5fb44d25e53a


> [C++] More fine-grained control of file creation in filesystem layer
> --------------------------------------------------------------------
>
>                 Key: ARROW-12509
>                 URL: https://issues.apache.org/jira/browse/ARROW-12509
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Antoine Pitrou
>            Assignee: Antoine Pitrou
>            Priority: Major
>
> {{FileSystem::OpenOutputStream}} silently truncates an existing file.
> It would be better to give more control to the user. Ideally, one could 
> choose between several options: "always overwrite and fail if doesn't exist", 
> "overwrite if exists, otherwise create", "creates if doesn't exist, otherwise 
> fails".
> One should research whether e.g. S3 supports such control.



--
This message was sent by Atlassian Jira
(v8.20.1#820001)

Reply via email to