Re: [PATCH] Remove unused PageIsPredicateLocked()

From: Matthias van de Meent <boekewurm+postgres(at)gmail(dot)com>
To: Aleksander Alekseev <aleksander(at)tigerdata(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: [PATCH] Remove unused PageIsPredicateLocked()
Date: 2026-09-16 14:22:52
Message-ID: CAEze2WgC11g5Ob6s4Vpj+EQsEHRHC5_6m9MZaPLjVg6X9C2Ubg@mail.gmail.com
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On Wed, 16 Sept 2026 at 15:23, Aleksander Alekseev
<aleksander(at)tigerdata(dot)com> wrote:
>
> Hi,
>
> The proposed patch removes dead code in src/backend/storage/lmgr/predicate.c
>
> If my understanding is correct, PageIsPredicateLocked() was added in
> dafaa3efb75 (Feb 2011) but its call was removed in 47ad79122bc (Mar
> 2011) and we have never used it since. It was mentioned in one recent
> discussion [1] but it was pointed out that it can't be used there
> either.
>
> If anyone believes that we should keep it alternatively we could cover
> it with tests or at least add an Assert() somewhere.

I'm fine with removing it, for reasons including because its signature
promise wasn't ever truly clear.

-Matthias

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