Re: storing an explicit nonce

From: Andres Freund <andres(at)anarazel(dot)de>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Stephen Frost <sfrost(at)snowman(dot)net>, Robert Haas <robertmhaas(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Tom Kincaid <tomjohnkincaid(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com>
Subject: Re: storing an explicit nonce
Date: 2021-05-26 02:16:41
Message-ID: 20210526021641.bqc2nwr4dxo57k7t@alap3.anarazel.de
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On 2021-05-25 22:11:46 -0400, Bruce Momjian wrote:
> This is not possible if we are using the LSN for the full page write LSN
> for the hint bit nonce, though we could use a dummy WAL record to
> generate an LSN for this, right?

We cannot use a dummy WAL record, see my explanation about the standby /
crash recovery issues.

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