Horton

Re: BUG #19097: System catalog modifications are allowed by alter

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

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Kirill Reshke <reshkekirill@gmail.com>
Cc: rekgrpth@gmail.com, pgsql-bugs@lists.postgresql.org
Date: 2025-10-29T14:17:28Z
Lists: pgsql-bugs

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  1. Refine our definition of what constitutes a system relation.

Kirill Reshke <reshkekirill@gmail.com> writes:
> reproduced here on v13, v16, v18 and HEAD. Looks like we need to teach
> ExecAlterObjectSchemaStmt to respect allow_system_table_mods GUC.

allow_system_table_mods has never been intended to be bulletproof,
only to slow down careless superusers.  I'm not especially concerned
about whether there are paths it doesn't cover.

			regards, tom lane