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Re: BUG #19484: Segmentation fault triggered by FDW

Matheus Alcantara <matheusssilv97@gmail.com>

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From: "Matheus Alcantara" <matheusssilv97@gmail.com>
To: "Ayush Tiwari" <ayushtiwari.slg01@gmail.com>
Cc: "Rafia Sabih" <rafia.pghackers@gmail.com>, <798604270@qq.com>, <pgsql-bugs@lists.postgresql.org>, "Etsuro Fujita" <etsuro.fujita@gmail.com>, "Amit Langote" <amitlan@postgresql.org>
Date: 2026-06-10T11:08:56Z
Lists: pgsql-bugs

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On Wed Jun 10, 2026 at 2:15 AM -03, Ayush Tiwari wrote:
>> One minor naming observation: the new fdwPrivLists field in
>> ModifyTableState doesn't follow the mt_ prefix convention used by the
>> other re-indexed lists (mt_updateColnosLists, mt_mergeActionLists,
>> mt_mergeJoinConditions). Should we rename it to mt_fdwPrivLists for
>> consistency?
>>
>
> I think yes, it makes sense to rename it.
>

Attached v2 renamed, thanks.

(Also CC Amit on this since he committed cbc127917e0 which I believe
that is when the issue started)

--
Matheus Alcantara
EDB: https://www.enterprisedb.com

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Avoid ABI break in ModifyTableState from the FDW pruning fix

  2. Re-index ModifyTable FDW arrays when pruning result relations

  3. Fix universal builds on MacOS

  4. Track unpruned relids to avoid processing pruned relations