Re: [Proposal] Fully WAL logged CREATE DATABASE - No Checkpoints

From: Andres Freund <andres(at)anarazel(dot)de>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com>, Maciek Sakrejda <m(dot)sakrejda(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: [Proposal] Fully WAL logged CREATE DATABASE - No Checkpoints
Date: 2022-03-22 15:42:01
Message-ID: 20220322154201.f7mohbtf6msakvoe@alap3.anarazel.de
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Hi,

On 2022-03-22 11:23:16 -0400, Robert Haas wrote:
> From 116bcdb6174a750b7ef7ae05ef6f39cebaf9bcf5 Mon Sep 17 00:00:00 2001
> From: Robert Haas <rhaas(at)postgresql(dot)org>
> Date: Tue, 22 Mar 2022 11:22:26 -0400
> Subject: [PATCH v1] Add new block-by-block strategy for CREATE DATABASE.

I might have missed it because I just skimmed the patch. But I still think it
should contain a comment detailing why accessing catalogs from another
database is safe in this instance, and perhaps a comment or three in places
that could break it (e.g. snapshot computation, horizon stuff).

Greetings,

Andres Freund

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