Re: BUG #18156: Self-referential foreign key in partitioned table not enforced on deletes

From: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
To: fastcat(at)gmail(dot)com, pgsql-bugs(at)lists(dot)postgresql(dot)org
Subject: Re: BUG #18156: Self-referential foreign key in partitioned table not enforced on deletes
Date: 2024-07-12 12:36:55
Message-ID: 202407121236.cksghur2ltm7@alvherre.pgsql
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Hello, I hadn't noticed this report before; I'll have a look at it
soon.

On 2023-Oct-13, PG Bug reporting form wrote:

> When a partitioned table has a self-referential foreign key, I'm finding
> that the key is not enforced during deletes from the table.

Hmm, yeah, I broke this in this commit

Author: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
Branch: master Release: REL_16_BR [614a406b4] 2022-10-07 19:37:48 +0200
Branch: REL_15_STABLE Release: REL_15_0 [6083132ab] 2022-10-07 19:37:48 +0200
Branch: REL_14_STABLE Release: REL_14_6 [483d26930] 2022-10-07 19:37:48 +0200
Branch: REL_13_STABLE Release: REL_13_9 [7d520e68e] 2022-10-07 19:37:48 +0200
Branch: REL_12_STABLE Release: REL_12_13 [669803af0] 2022-10-07 19:37:48 +0200

Fix self-referencing foreign keys with partitioned tables

Clearly this area needs a lot more work.

--
Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/
"No nos atrevemos a muchas cosas porque son difíciles,
pero son difíciles porque no nos atrevemos a hacerlas" (Séneca)

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