Re: BUG #18906: EXCEPT with identical left/right queries isn't eliminated

From: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
To: "jh(dot)lai(at)qq(dot)com" <jh(dot)lai(at)qq(dot)com>, "pgsql-bugs(at)lists(dot)postgresql(dot)org" <pgsql-bugs(at)lists(dot)postgresql(dot)org>
Subject: Re: BUG #18906: EXCEPT with identical left/right queries isn't eliminated
Date: 2025-04-27 17:37:03
Message-ID: CAKFQuwbZ7oLZQTTfKmYSm0hD_dKcQz9SMj-rr6YiDj6J68a_pA@mail.gmail.com
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On Sunday, April 27, 2025, PG Bug reporting form <noreply(at)postgresql(dot)org>
wrote:

> The following bug has been logged on the website:
>
> Bug reference: 18906
> Logged by: jinhui lai
> Email address: jh(dot)lai(at)qq(dot)com
> PostgreSQL version: 17.4
> Operating system: ubuntu 22.04
> Description:
>

As with 18094, this is not a bug.

David J.

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