At Mon, 07 Sep 2020 00:33:03 -0400, Tom Lane <tgl@sss.pgh.pa.us> wrote in
> Justin Pryzby <pryzby@telsasoft.com> writes:
> > This is easily reproduced, at least on pg_attribute
Thanks for the repro.
> Yeah, duplicated here. The assertion (not SIGSEGV) is in code
> added by c6b92041d, so it seems clearly an open issue for v13.
>
> I did not check to see what happens in a non-assert build.
The cause is that the worker had received pending-sync entry correctly
but not never created a relcache entry for the relation using
RelationBuildDesc. So the rd_firstRelfilenodeSubid is not correctly
set.
I'm investigating it.
regards.
--
Kyotaro Horiguchi
NTT Open Source Software Center