Re: BUG #19099: Conditional DELETE from partitioned table with non-updatable partition raises internal error

Hi,

On Fri, Nov 7, 2025 at 10:01 AM Tender Wang <tndrwang(at)gmail(dot)com> wrote:
> Amit Langote <amitlangote09(at)gmail(dot)com> 于2025年11月6日周四 18:00写道：
>> So for back branches, I’d propose sticking with the smaller
>> executor-side fix and perhaps revisiting the planner behavior
>> separately if we ever want to refine handling of pruned partitions or
>> dummy roots. I understand, as was reported upthread, that the EXPLAIN
>> VERBOSE output isn’t very consistent with that patch even though the
>> internal error goes away. Making sense of the output differences
>> requires knowing that the targetlist population behavior differs
>> depending on whether enable_partition_pruning is on or off as I
>> described above.
>
> The executor-side fix works for me

Thanks for checking.

> and the test case should be added to your patch.
> Should we add some comments to explain the output difference in EXPLAIN VERBOSE
> if enable_partition_pruning is set to a different value?

I added some in the v2 patch I just posted.

--
Thanks, Amit Langote