Re: [patch] Fix checksum verification in base backups for zero page headers - Mailing list pgsql-hackers

From Michael Banck
Subject Re: [patch] Fix checksum verification in base backups for zero page headers
Date
Msg-id 6713b5e9d98c7db1608b43cd57b10be4a08dca67.camel@credativ.de
Whole thread Raw
In response to Re: [patch] Fix checksum verification in base backups for zero page headers  (Michael Banck <michael.banck@credativ.de>)
Responses Re: [patch] Fix checksum verification in base backups for zero page headers  (Anastasia Lubennikova <a.lubennikova@postgrespro.ru>)
List pgsql-hackers
Hi,

Am Dienstag, den 22.09.2020, 16:26 +0200 schrieb Michael Banck:
> Am Mittwoch, den 02.09.2020, 16:50 +0300 schrieb Anastasia Lubennikova:
> > I've looked through the previous discussion. As far as I got it, most of 
> > the controversy was about online checksums improvements.
> > 
> > The warning about pd_upper inconsistency that you've added is a good 
> > addition. The patch is a bit messy, though, because a huge code block 
> > was shifted.
> > 
> > Will it be different, if you just leave
> >      "if (!PageIsNew(page) && PageGetLSN(page) < startptr)"
> > block as it was, and add
> >      "else if (PageIsNew(page) && !PageIsZero(page))" ?
> 
> Thanks, that does indeed look better as a patch and I think it's fine
> as-is for the code as well, I've attached a v2.

Sorry, forgot to add you as reviewer in the proposed commit message,
I've fixed that up now in V3.


Michael

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