Re: Fix for visibility check on 14.5 fails on tpcc with high concurrency

From: Dimos Stamatakis <dimos(dot)stamatakis(at)servicenow(dot)com>
To: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
Cc: Peter Geoghegan <pg(at)bowt(dot)ie>, "simon(dot)riggs(at)enterprisedb(dot)com" <simon(dot)riggs(at)enterprisedb(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Fix for visibility check on 14.5 fails on tpcc with high concurrency
Date: 2022-11-29 18:21:54
Message-ID: SJ2PR08MB8404529F0A7EFF8CCFF09B9AE2129@SJ2PR08MB8404.namprd08.prod.outlook.com
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On 2022-Nov-25, Dimos Stamatakis wrote:

> So does this mean there is no race condition in this case and that
> this error is redundant?

No, it means I believe a bug exists but that I haven't spent enough time
on it to understand what it is.

Great! Please keep me posted and let me know if you need any more evidence to debug. 😊

Thanks,
Dimos

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