Hi,
On 2018-06-17 22:31:02 -0400, Tom Lane wrote:
> Michael Paquier <michael@paquier.xyz> writes:
> > Trying to run regression tests in parallel in ~9.5 leads to spurious
> > failures, which is annoying... I had a patch fixing that but I cannot
> > put my finger on the thread where this has been discussed.
>
> Yeah, for me parallelized check-world only works in >= 9.6. My (vague)
> recollection is that multiple fixes were needed to get to that point,
> so I doubt it's worth trying to fix in older branches.
There were multiple fixes, that's right - I'd personally however still
be in favor of trying to backpatch those. Running a check world serially
for the backbranches seriously slows down things for me.
Greetings,
Andres Freund