| From: | Alexander Lakhin <exclusion(at)gmail(dot)com> |
|---|---|
| To: | Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Tender Wang <tndrwang(at)gmail(dot)com> |
| Cc: | pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Subject: | Re: BUG #18396: Assert in gistFindCorrectParent() fails on inserting large tuples into gist index |
| Date: | 2024-03-20 05:00:00 |
| Message-ID: | 9c187e77-4e5f-949c-783f-f605ec5772ff@gmail.com |
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| Thread: | |
| Lists: | pgsql-bugs |
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?
>
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?
Best regards,
Alexander
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