Re: GIN pageinspect support for entry tree and posting tree

On Wed, 14 Jan 2026 at 20:03, Kirill Reshke <reshkekirill(at)gmail(dot)com> wrote:
> On Wed, 14 Jan 2026 at 19:51, Japin Li <japinli(at)hotmail(dot)com> wrote:
>>
>> On Wed, 14 Jan 2026 at 17:44, Roman Khapov <rkhapov(at)yandex-team(dot)ru> wrote:
>> >> I agree — the NULL handling seems wrong.
>> >> Here's a quick patch to fix it. What do you think?
>> >
>> > LGTM, but maybe the test should be expanded with NULL for the two-column
>> > indexes? I mean to add NULLs at zero column too.
>> >
>>
>> Sorry, I’m not sure I understand.
>>
>> Are you suggesting we add one (or both) of these test cases?
>>
>> INSERT INTO test1 VALUES (2, NULL, NULL);
>> INSERT INTO test1 VALUES (2, ARRAY[NULL, 222], ARRAY['d', NULL]);
>>
>
> Yes, like this, to have gin_entrypage_items to output y=NULL and
> z=NULL for y_z index
>

Thanks for the suggestion!

I think one of those test cases is sufficient — I'll include it in the next
version.

--
Regards,
Japin Li
ChengDu WenWu Information Technology Co., Ltd.