Re: BUG #18396: Assert in gistFindCorrectParent() fails on inserting large tuples into gist index
От | Tender Wang |
---|---|
Тема | Re: BUG #18396: Assert in gistFindCorrectParent() fails on inserting large tuples into gist index |
Дата | |
Msg-id | CAHewXN=Mi-Gzf+UZVCKc9yAtbp92SPGswMgDXzwK1bAPSyTQWw@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: BUG #18396: Assert in gistFindCorrectParent() fails on inserting large tuples into gist index (Alexander Lakhin <exclusion@gmail.com>) |
Список | pgsql-bugs |
Alexander Lakhin <exclusion@gmail.com> 于2024年3月20日周三 13:00写道:
Hello Heikki and Tender Wang,
19.03.2024 17:26, Heikki Linnakangas wrote:
> On 19/03/2024 14:07, Tender Wang wrote:
>> Thanks for your report. I can reproduce this issue.
>> I try to delete the Assert, no coredump anymore.
>> I need some time to learn GiST to find the root cause.
>
> If you're interested to work on this, Tender, maybe you can figure that out?
I will take some time to figure that out.
>
Thank you for looking at this!
I'm also bothered by errors "no empty local buffer available" produced
(on master, but not on REL_12_STABLE) when inserting larger tuples:
INSERT INTO t SELECT '' FROM generate_series(1, 500) g;
INSERT INTO t SELECT
(SELECT string_agg('text' || g, ' ') FROM generate_series(1, 700) g)
FROM generate_series(1, 30);
Are those errors expected?
I think it is expected. More local buffers need here. I set temp_buffers to 2GB.
this error didn't report. But stack depth limit exceeded. It is a hint that to process
this case need more resource.
Tender Wang
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