| From: | Tender Wang <tndrwang(at)gmail(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: satisfies_hash_partition crash |
| Date: | 2026-07-02 01:22:30 |
| Message-ID: | CAHewXNmYE-SGnppr=vDAhDUNCg3SF-NosjYqHrh9npAh8MuacA@mail.gmail.com |
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| Lists: | pgsql-hackers |
Robert Haas <robertmhaas(at)gmail(dot)com> 于2026年7月2日周四 03:11写道：
>
> Hi,
>
> This test case crashes the server for me:
>
> CREATE TABLE hp (a int) PARTITION BY HASH (a);
> SELECT satisfies_hash_partition('hp'::regclass, 1, 0, VARIADIC NULL::int[]);
>
> I'm inclined to mostly blame my commit
> f3b0897a1213f46b4d3a99a7f8ef3a4b32e03572, which fixed related problems
> but overlooked this one. I think the fix should be simple, but since
> that commit is from 2017, it will need to be back-patched all the way.
Adding PG_ARGISNULL(3) to the beginning of the if() seems workable.
And the comments need to be adjusted.
--
Thanks,
Tender Wang
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