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From: Soumya S Murali <[email protected]>
To: Jim Jones <[email protected]>
Cc: Daniil Davydov <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Stepan Neretin <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: Fix bug with accessing to temporary tables of other sessions
Date: Thu, 16 Apr 2026 12:11:53 +0530
Message-ID: <CAMtXxw_2VnP5U7U+2ObOCC2voEkAzUqAgH=rPTQBXrb_8K=pyA@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
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Hi all,

Thank you for the guidance and the updated patch.

On Mon, Apr 13, 2026 at 7:26 PM Jim Jones <[email protected]> wrote:
>
> Hi
>
> On 13/04/2026 14:40, Soumya S Murali wrote:
> > Please let me know if there are additional scenarios I should
> > validate. Looking forward to more feedback.
>
> Thanks for testing it. You can take a look at
> 012_temp_obj_multisession.pl and check if we missed any path.
>
> Due to changes introduced in b2a17ba7a5d the patch was no longer
> applying. See rebased v18 attached.
>


I tested the rebased v18 patch on a clean tree and verified that it
applies cleanly and behaves consistently with previous results.
Cross-session access is correctly blocked with: ERROR: cannot access
temporary relations of other sessions
Index scan paths are also properly restricted, and same-session access
continues to work as expected.
The updated test changes look good. Everything works as expected, +1
from my side.

Regards,
Soumya





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