From: Alvaro Herrera <alvherre@alvh.no-ip.org>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: exclusion@gmail.com
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #17877: Referencing a system column in a foreign key leads to incorrect memory access
Date: Thu, 30 Mar 2023 11:57:40 +0200
Message-ID: <20230330095740.irhck6e5zbt3jqer@alvherre.pgsql> (raw)
In-Reply-To: <3994000.1680106346@sss.pgh.pa.us>
On 2023-Mar-29, Tom Lane wrote:
> PG Bug reporting form <noreply@postgresql.org> writes:
> > The following query:
> > CREATE TABLE pt(tid oid, id int, PRIMARY KEY(tid, id));
> > CREATE TABLE ft(id int, FOREIGN KEY (tableoid, id) REFERENCES pt);
> > produces a valgrind-detected error:
>
> We should probably just disallow system columns as foreign keys.
> There was a legitimate use-case for that with OID columns, but
> no more.
+1
--
Álvaro Herrera Breisgau, Deutschland — https://www.EnterpriseDB.com/
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To: pgsql-bugs@postgresql.org
Cc: alvherre@alvh.no-ip.org, tgl@sss.pgh.pa.us, exclusion@gmail.com, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #17877: Referencing a system column in a foreign key leads to incorrect memory access
In-Reply-To: <20230330095740.irhck6e5zbt3jqer@alvherre.pgsql>
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