Re: Parallel Full Hash Join

On Sat, Mar 6, 2021 at 12:31 PM Thomas Munro <thomas(dot)munro(at)gmail(dot)com> wrote:
>
> On Tue, Mar 2, 2021 at 11:27 PM Thomas Munro <thomas(dot)munro(at)gmail(dot)com> wrote:
> > On Fri, Feb 12, 2021 at 11:02 AM Melanie Plageman
> > <melanieplageman(at)gmail(dot)com> wrote:
> > > I just attached the diff.
> >
> > Squashed into one patch for the cfbot to chew on, with a few minor
> > adjustments to a few comments.
>
> I did some more minor tidying of comments and naming. It's been on my
> to-do-list to update some phase names after commit 3048898e, and while
> doing that I couldn't resist the opportunity to change DONE to FREE,
> which somehow hurts my brain less, and makes much more obvious sense
> after the bugfix in CF #3031 that splits DONE into two separate
> phases. It also pairs obviously with ALLOCATE. I include a copy of
> that bugix here too as 0001, because I'll likely commit that first, so
> I rebased the stack of patches that way. 0002 includes the renaming I
> propose (master only). Then 0003 is Melanie's patch, using the name
> SCAN for the new match bit scan phase. I've attached an updated
> version of my "phase diagram" finger painting, to show how it looks
> with these three patches. "scan*" is new.

Patches 0002, 0003 no longer apply to the master branch, seemingly
because of subsequent changes to pgstat, so need rebasing.

Regards,
Greg Nancarrow
Fujitsu Australia