pgsql: Add a comment to distinguish backend types

From: Daniel Gustafsson <dgustafsson(at)postgresql(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Add a comment to distinguish backend types
Date: 2026-08-01 19:42:47
Message-ID: E1wqFbb-00000001GaE-2vmH@gemulon.postgresql.org
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Add a comment to distinguish backend types

The data checksums entries were seemingly auxiliary processes from
reading the code, but they are in fact background workers. Add a
comment to clarify. Backpatch down to v19 where online checksums
were introduced.

Author: Daniel Gustafsson <daniel(at)yesql(dot)se>
Reported-by: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Reviewed-by: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Discussion: https://postgr.es/m/CAHGQGwFsBjQs2fv7b72hxzGV_fJMh6LAg4E83pNfDOu1jVgWCA@mail.gmail.com
Backpatch-through: 19

Branch
------
REL_19_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/4afa9788b51625d19eee08a1420b48b04c0699fa

Modified Files
--------------
src/include/miscadmin.h | 4 ++++
1 file changed, 4 insertions(+)

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