Re: Doc: fix the rewrite condition when executing ALTER TABLE ADD COLUMN - Mailing list pgsql-hackers

From Álvaro Herrera
Subject Re: Doc: fix the rewrite condition when executing ALTER TABLE ADD COLUMN
Date
Msg-id 202503241037.pjpyt5j7xrfs@alvherre.pgsql
Whole thread Raw
In response to Re: Doc: fix the rewrite condition when executing ALTER TABLE ADD COLUMN  (jian he <jian.universality@gmail.com>)
List pgsql-hackers
On 2025-Mar-24, jian he wrote:

> In the current development branch,
> virtual generated columns still do not support the domain.
> you can not change the generation expression if it contains a check
> constraint on it.
> so virtual generated columns don't need rewriting.
> 
> IMHO, the committed doc description didn't mention this exception.
> we need some text to cover this exception?

I'd add a note about these two things to the open items page, and wait
to see if we get some of these limitations fixed, so that if we don't,
we remember to note this limitation in the documentation.

-- 
Álvaro Herrera        Breisgau, Deutschland  —  https://www.EnterpriseDB.com/
"All rings of power are equal,
But some rings of power are more equal than others."
                                 (George Orwell's The Lord of the Rings)



pgsql-hackers by date:

Previous
From: Vincent Moreau
Date:
Subject: [PATCH] Add a new pattern for zero-based months for Date/Time Formatting
Next
From: Yura Sokolov
Date:
Subject: Re: sinvaladt.c: remove msgnumLock, use atomic operations on maxMsgNum