From: PG Doc comments form <noreply@postgresql.org>
To: pgsql-docs@lists.postgresql.org
Cc: t@gobet.ar
Subject: ALTER TABLE atomicity with sub-commands
Date: Tue, 02 Apr 2024 14:40:24 +0000
Message-ID: <171206882423.679.7317080738034337679@wrigleys.postgresql.org> (raw)
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/15/sql-altertable.html
Description:
Hello dear PostgreSQL family,
It is not entirely clear (to me) that ALTER TABLE statements with
comma-separated sub-commands are atomic. Despite of saying "perform X
actions in one operation" in one of the examples, it is not explicitly said
that the operation will be rolled back if one of the sub-commands fails.
From the examples, we have:
ALTER TABLE distributors
ALTER COLUMN address TYPE varchar(80),
ALTER COLUMN name TYPE varchar(100);
Will the `address` column type change rollback if the `ALTER COLUMN name
TYPE varchar(100)` subcommand fails?
Currently reading the docs for version 15.
Many thanks :)
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Subject: Re: ALTER TABLE atomicity with sub-commands
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