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From: Álvaro Herrera <[email protected]>
To: Chao Li <[email protected]>
To: jian he <[email protected]>
Cc: L. pgsql-hackers <[email protected]>
Cc: Andrew Dunstan <[email protected]>
Subject: Re: Fix bug of CHECK constraint enforceability recursion
Date: Tue, 26 May 2026 09:32:39 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<CACJufxGRkCSqqRwd+3MMVFbosKXHv=Jc+KyGK+NM3YAHN7eu+g@mail.gmail.com>
	<[email protected]>

On 2026-05-26, Chao Li wrote:
>> On May 26, 2026, at 14:05, jian he <[email protected]> wrote:

>> Overall, i tend to think that we should reject ALTER TABLE ALTER
>> CONSTRAINT if it
>> would result in the parent constraint being enforced while the child constraint
>> is not enforced.

Yeah.

> I am not against the idea of "rejecting ALTER TABLE ALTER CONSTRAINT if 
> it would result in the parent constraint being enforced while the child 
> constrain is not enforced", but I’m afraid it’s too late for PG19. So, 
> I guess we still need to fix the issue for 19, right?

I think this is a bug that we need to fix in 19 as well — I mean we should reject the ALTER TABLE.

-- 
Álvaro Herrera

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