Great work Hyukjin!  I'm not too familiar with R, but I'll take a look at the PR.

Bryan

On Fri, Nov 9, 2018 at 9:19 AM Shivaram Venkataraman <shivaram@eecs.berkeley.edu> wrote:
Thanks Hyukjin! Very cool results

Shivaram
On Fri, Nov 9, 2018 at 10:58 AM Felix Cheung <felixcheung_m@hotmail.com> wrote:
>
> Very cool!
>
>
> ________________________________
> From: Hyukjin Kwon <gurwls223@gmail.com>
> Sent: Thursday, November 8, 2018 10:29 AM
> To: dev
> Subject: Arrow optimization in conversion from R DataFrame to Spark DataFrame
>
> Hi all,
>
> I am trying to introduce R Arrow optimization by reusing PySpark Arrow optimization.
>
> It boosts R DataFrame > Spark DataFrame up to roughly 900% ~ 1200% faster.
>
> Looks working fine so far; however, I would appreciate if you guys have some time to take a look (https://github.com/apache/spark/pull/22954) so that we can directly go ahead as soon as R API of Arrow is released.
>
> More importantly, I want some more people who're more into Arrow R API side but also interested in Spark side. I have already cc'ed some people I know but please come, review and discuss for both Spark side and Arrow side.
>
> Thanks.
>

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