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https://issues.apache.org/jira/browse/ARROW-14904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17451362#comment-17451362
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Weston Pace commented on ARROW-14904:
-------------------------------------
Opening an append stream is on the path to be deprecated. It isn't supported
on all filesystems (e.g. S3) or all formats (e.g. parquet). Overwrite behavior
should exist today.
That being said I can see the potential advantages when it comes to CSV. CC
[~apitrou]
> [C++] Enable CSV Writer to append / overwrite existing file
> -----------------------------------------------------------
>
> Key: ARROW-14904
> URL: https://issues.apache.org/jira/browse/ARROW-14904
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: C++
> Reporter: Dragoș Moldovan-Grünfeld
> Priority: Major
>
> This would be a match for the {{readr::write_csv()}} {{append}} argument:
> boolean. If {{FALSE}} will overwrite existing file. If {{TRUE}} will append
> to existing file. In both cases, if the file doesn't exist, a new file is
> created.
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