Re: BUG #19056: ExecInitPartitionExecPruning segfault due to NULL es_part_prune_infos

On Thu, Sep 18, 2025 at 4:06 PM David Rowley <dgrowleyml(at)gmail(dot)com> wrote:
>
> On Thu, 18 Sept 2025 at 18:20, Amit Langote <amitlangote09(at)gmail(dot)com> wrote:
> > Oops, coffee deficiency. Updated again.
>
> Thanks for updating the patch.
>
> I think the original intent of "Parsed test spec with 3 sessions"
> (from 759d9d676) was two sessions doing work, and an independent
> observer session. Is there a reason to add 2 more sessions? Maybe it's
> me not working with the isolation tester often enough, but I'd have
> expected you to add steps for s1 and s2 then define permutations for
> those steps.

Yeah, that makes the additions smaller and avoids slowing down the
suite. It did take a bit of fiddling though -- after switching to use
the existing sessions, teardown in s1 hung because I hadn’t noticed
that s2’s setup already does a BEGIN, so the delete side ended up
without a COMMIT, leaving an open transaction that blocked DROP in
s1’s teardown. Easier to take shortcuts with new sessions like I
first did, but better to keep the suite light. :-)

Done in the attached.

--
Thanks, Amit Langote