On Wed, Jun 12, 2019 at 10:58 AM Richard Guo <riguo(at)pivotal(dot)io> wrote:
> Hi all,
>
> Paul and I have been hacking recently to implement parallel grouping
> sets, and here we have two implementations.
>
> Implementation 1
> ================
>
> Attached is the patch and also there is a github branch [1] for this
> work.
>
Rebased with the latest master.
Thanks
Richard