Re: a curious case of force_parallel_mode = on with jit'ing

On Thu, Feb 4, 2021 at 1:41 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Amit Langote <amitlangote09(at)gmail(dot)com> writes:
> > On Thu, Feb 4, 2021 at 1:08 AM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> >> Works for me on HEAD (using RHEL8.3, gcc 8.3.1, LLVM 10.0.1).
>
> > Thanks for checking. Must be my LLVM setup I guess:
>
> > $ llvm-config --version
> > 7.0.1
> > $ cat /etc/redhat-release
> > CentOS Linux release 7.7.1908 (Core)
> > $ gcc --version
> > gcc (GCC) 9.1.1 20190605 (Red Hat 9.1.1-2)
>
> Hmmm ... seems like an odd combination to have a newer gcc and an
> older LLVM than what RHEL8 is shipping. Is this really the current
> recommendation on CentOS 7?

Not an official combination. At some point last year I decided to
install a more modern gcc than what CentOS 7 officially provides and
ended up getting them through a Software Collections (scl) package
called devtoolset-9.

--
Amit Langote
EDB: http://www.enterprisedb.com