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From: David G. Johnston <david.g.johnston@gmail.com>
To: Ron Johnson <ronljohnsonjr@gmail.com>
Cc: Pgsql-admin <pgsql-admin@lists.postgresql.org>
Subject: Re: Are these metadata ALTER TABLE commands transactionally safe?
Date: Thu, 14 May 2026 14:26:05 -0700
Message-ID: <CAKFQuwbZQ6nquZaw3Xoa2GyFa0_kGzmuVAH71LN7tO-z+sAoAA@mail.gmail.com> (raw)
In-Reply-To: <CANzqJaB2NCCvyigAWH3=1G=2A-oybCo-oQXxWF4UuniCebqhPQ@mail.gmail.com>
References: <CANzqJaB2NCCvyigAWH3=1G=2A-oybCo-oQXxWF4UuniCebqhPQ@mail.gmail.com>

On Thursday, May 14, 2026, Ron Johnson <ronljohnsonjr@gmail.com> wrote:

> PG 17.9
>
> BEGIN;
> ALTER TABLE x RENAME TO x_hold;
> ALTER TABLE y.x SET SCHEMA a;
> ALTER TABLE x OWNER TO foo;
> COMMIT;
>
>
Define “transactionally safe”.


> I don't trust the validity of synthetic tests when Prod is ill-behaved
> JDBC connections.
>
>
Then do them over a local connection using psql?

David J.

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