Re: recovering from "found xmin ... from before relfrozenxid ..."

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Stephen Frost <sfrost(at)snowman(dot)net>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: recovering from "found xmin ... from before relfrozenxid ..."
Date: 2020-07-13 22:15:52
Message-ID: 2703956.1594678552@sss.pgh.pa.us
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Stephen Frost <sfrost(at)snowman(dot)net> writes:
> * Robert Haas (robertmhaas(at)gmail(dot)com) wrote:
>> - If so, how? I would propose a new contrib module that we back-patch
>> all the way, because the VACUUM errors were back-patched all the way,
>> and there seems to be no advantage in making people wait 5 years for a
>> new version that has some kind of tooling in this area.

> While I agree that this would be a good and useful new contrib module to
> have, I don't think it would be appropriate to back-patch it into PG
> formally.

Yeah, I don't care for that either. That's a pretty huge violation of our
normal back-patching rules, and I'm not convinced that it's justified.

No objection to adding it as a new contrib module.

regards, tom lane

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