Horton

Re: Issues with blocksize smaller than 8KB

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Álvaro Herrera <alvherre@kurilemu.de>
Cc: Casey Shobe <casey.allen.shobe@icloud.com>, pgsql-bugs@lists.postgresql.org
Date: 2025-10-19T18:48:55Z
Lists: pgsql-bugs

Commits

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  1. Add static assertion that RELSEG_SIZE fits in an int.

=?utf-8?Q?=C3=81lvaro?= Herrera <alvherre@kurilemu.de> writes:
> On 2025-Oct-18, Tom Lane wrote:
>>> 2025-10-17 15:39:13.182 UTC [97433] DETAIL:  The database cluster was initialized with RELSEG_SIZE 1895825408, but the server was compiled with RELSEG_SIZE 1895825408.

> Hmm, but how come two values that print identical result in failing the
> test that they are not equal?

Incautious use of --with-segsize could perhaps result in RELSEG_SIZE
being too big for an int ...

			regards, tom lane