| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, 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: Key management with tests |
| Date: | 2021-01-12 18:11:06 |
| Message-ID: | 20210112181106.b75t5na7cdxno6dm@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
On 2021-01-12 13:03:14 -0500, Bruce Momjian wrote:
> I think one big question is that, since we are using a streaming cipher,
> do we care about hint bit changes showing to users? I actually don't
> know. If we do, some kind of dummy LSN record might be required, as you
> suggested.
That'd lead to a *massive* increase of WAL record volume. It's one thing
to WAL log hint bit writes once per page per checkpoint. It's another to
do so on every single hint bit write.
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