Received: from malur.postgresql.org ([217.196.149.56])
	by arkaria.postgresql.org with esmtps  (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.96)
	(envelope-from <pgsql-bugs-owner+archive@lists.postgresql.org>)
	id 1w7Hhm-00599a-1s
	for pgsql-bugs@arkaria.postgresql.org;
	Mon, 30 Mar 2026 18:51:18 +0000
Received: from localhost ([127.0.0.1] helo=malur.postgresql.org)
	by malur.postgresql.org with esmtp (Exim 4.96)
	(envelope-from <pgsql-bugs-owner+archive@lists.postgresql.org>)
	id 1w7Hhl-005fUp-0L
	for pgsql-bugs@arkaria.postgresql.org;
	Mon, 30 Mar 2026 18:51:17 +0000
Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29])
	by malur.postgresql.org with esmtps  (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.96)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1w7Hhk-005fUh-2o
	for pgsql-bugs@lists.postgresql.org;
	Mon, 30 Mar 2026 18:51:17 +0000
Received: from sss.pgh.pa.us ([68.162.161.243])
	by magus.postgresql.org with esmtps  (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.98.2)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1w7Hhi-000000022lA-2u9S
	for pgsql-bugs@lists.postgresql.org;
	Mon, 30 Mar 2026 18:51:17 +0000
Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1])
	by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 62UIp8mp2544271;
	Mon, 30 Mar 2026 14:51:08 -0400
From: Tom Lane <tgl@sss.pgh.pa.us>
To: zheng_xianghang@163.com
cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #19446: Domain DEFAULT not reflected in system catalogs and information_schema (PG 18.3)
In-reply-to: <19446-c2e092abdbf0216e@postgresql.org>
References: <19446-c2e092abdbf0216e@postgresql.org>
Comments: In-reply-to PG Bug reporting form <noreply@postgresql.org>
	message dated "Mon, 30 Mar 2026 03:12:10 -0000"
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <2544269.1774896668.1@sss.pgh.pa.us>
Date: Mon, 30 Mar 2026 14:51:08 -0400
Message-ID: <2544270.1774896668@sss.pgh.pa.us>
List-Id: <pgsql-bugs.lists.postgresql.org>
List-Help: <https://lists.postgresql.org/manage/>
List-Subscribe: <https://lists.postgresql.org/manage/>
List-Post: <mailto:pgsql-bugs@lists.postgresql.org>
List-Owner: <mailto:pgsql-bugs-owner@lists.postgresql.org>
List-Archive: <https://www.postgresql.org/list/pgsql-bugs>
Archived-At: <https://www.postgresql.org/message-id/2544270.1774896668%40sss.pgh.pa.us>
Precedence: bulk

PG Bug reporting form <noreply@postgresql.org> writes:
> When a column uses a domain with DEFAULT value, all system catalogs fail to
> reflect the default:
> - pg_attribute.atthasdef = false
> - No entries in pg_attrdef
> - information_schema.columns.column_default is empty
> But the default value works correctly at runtime.
> This is a metadata bug.

This is a duplicate of #19445, and is no more valid than that is.
Please stop harassing us with poorly-researched bug reports.

			regards, tom lane