Re: Compress prune/freeze records with Delta Frame of Reference algorithm

From: Evgeny Voropaev <evgeny(dot)voropaev(at)tantorlabs(dot)com>
To: Andrey Borodin <x4mmm(at)yandex-team(dot)ru>, Andres Freund <andres(at)anarazel(dot)de>
Cc: Tomas Vondra <tomas(at)vondra(dot)me>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Compress prune/freeze records with Delta Frame of Reference algorithm
Date: 2026-04-10 08:44:07
Message-ID: b9a48cd1-ab8d-4396-ae29-89dd8922e6d3@tantorlabs.com
Views: Whole Thread | Raw Message | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

> Evgeny, do you know of any cases when the patch has negative effect?
>
> I think if it’s strictly non-negative - then we can just weight complexity of maintaining
> the proposed approach against benefits.

Andrey, during my research and testing I haven't encountered any
negative effects from this patch on the WAL size.

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message Chao Li 2026-04-10 08:44:35 Re: Fix pgstat_database.c to honor passed database OIDs
Previous Message Lakshmi N 2026-04-10 08:38:53 Add missing CHECK_FOR_INTERRUPTS in autovacuum catalog scan loops