On Wed, Aug 8, 2018 at 10:08 PM, Peter Geoghegan <pg@bowt.ie> wrote:
>> Hmmm ... maybe we should temporarily stick in an elog(LOG) showing whether
>> a parallel build happened or not, so that we can check the buildfarm logs
>> next time we see that failure?
>
> I can do that tomorrow. Of course, it might be easier to just push the
> pending fix for the mapped relation bug, and see if that makes the
> issue go away. That would take longer, but it's also the only thing
> that's likely to be definitive anyway.
I'm going to push my fix for the relmapper.c parallel CREATE INDEX bug
tomorrow, and see what happens. I have a hard time imagining how there
could be a parallel index build on pg_class, now that Andrew has
indicated there is no reason to think that
"min_parallel_table_scan_size = 0" could slip in.
--
Peter Geoghegan