Re: Lowering the ever-growing heap->pd_lower

From: Peter Geoghegan <pg(at)bowt(dot)ie>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Matthias van de Meent <boekewurm+postgres(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Lowering the ever-growing heap->pd_lower
Date: 2022-04-08 21:19:50
Message-ID: CAH2-WzmtHQL8F9y7sJASEay5xvxutdztmwHVWZAWgpwFwTeb7g@mail.gmail.com
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On Fri, Apr 8, 2022 at 2:18 PM Andres Freund <andres(at)anarazel(dot)de> wrote:
> It's 4 bytes per line pointer, right?

Yeah, it's 4 bytes in Postgres. Most other DB systems only need 2
bytes, which is implemented in exactly the way that you're imagining.

--
Peter Geoghegan

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