Re: Parallel Full Hash Join - Mailing list pgsql-hackers

On Mon, Apr 10, 2023 at 11:33 AM Michael Paquier <michael@paquier.xyz> wrote:
> On Sat, Apr 08, 2023 at 02:19:54PM -0400, Melanie Plageman wrote:
> > Another worker attached to the batch barrier, saw that it was in
> > PHJ_BATCH_SCAN, marked it done and detached. This is fine.
> > BarrierArriveAndDetachExceptLast() is meant to ensure no one waits
> > (deadlock hazard) and that at least one worker stays to do the unmatched
> > scan. It doesn't hurt anything for another worker to join and find out
> > there is no work to do.
> >
> > We should simply delete this assertion.

Agreed, and pushed.  Thanks!

> I have added an open item about that.  This had better be tracked.

Thanks, will update.