Regression failures after changing PostgreSQL blocksize

From: Yasir <yasir(dot)hussain(dot)shah(at)gmail(dot)com>
To: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Regression failures after changing PostgreSQL blocksize
Date: 2026-02-11 18:19:37
Message-ID: CAA9OW9em8Bij1FEVRZm_fsrzE-j4gJWU4wkfC+Yxc6bEQVTNYw@mail.gmail.com
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Hi Seniors,

I recently configured PostgreSQL with a custom blocksize:

./configure --with-blocksize=32
make && make check
OR
make && make check-world

This produced so many regression failures. I'm wondering, are such failures
typical/expected when altering the default block size?
I came across a related discussion
<https://www.postgresql.org/message-id/flat/9615C13D-73D7-445F-BBA1-1374580EFD1E%40gmail.com>,
but it dates back more than a decade. It would be great to get current
perspectives.

Thanks,

Yasir
Data Bene

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