Re: BUG #18559: Crash after detaching a partition concurrently from another session - Mailing list pgsql-bugs

On Fri, Aug 16, 2024 at 3:32 AM Kuntal Ghosh <kuntalghosh.2007@gmail.com> wrote:
>
> On Tue, Aug 13, 2024 at 11:49 PM Alvaro Herrera from 2ndQuadrant
> <alvherre@alvh.no-ip.org> wrote:
> > > That means - after getting the live partitions from
> > > prune_append_rel_partitions(), by the time the code tries to lock a
> > > child, it's already dropped.
> >
> > Right.
> >
> > > However, similar check is not there in expand_partitioned_rtentry().
> > > Introducing the same check will fix the issue. But, I don't know how
> > > it affects the pruning part as this partition couldn't be pruned
> > > earlier and that's why we're opening the child partition.
> >
> > Hmm, we could just remove the partition from the set of live partitions
> > -- then it should behave the same as if the partition had been pruned.
> > Something like the attached, perhaps.
> >
> Thanks for the patch. LGTM. I've verified that it's fixing the issue.
>
+1

>
>
> --
> Thanks & Regards,
> Kuntal Ghosh



--
Regards
Junwang Zhao