Re: BUG #15309: ERROR: catalog is missing 1 attribute(s) for relid 760676 when max_parallel_maintenance_workers > 0

From: Peter Geoghegan <pg(at)bowt(dot)ie>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: deathlock13(at)gmail(dot)com, PostgreSQL mailing lists <pgsql-bugs(at)lists(dot)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com>
Subject: Re: BUG #15309: ERROR: catalog is missing 1 attribute(s) for relid 760676 when max_parallel_maintenance_workers > 0
Date: 2018-08-06 22:21:49
Message-ID: CAH2-Wz=YCiN6YDXkegJ-fzpDwcnsMi+HZJjW0-yU-UJ7bDGPJQ@mail.gmail.com
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On Mon, Aug 6, 2018 at 3:18 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Apparently there are people out there with catalogs big enough
> to justify parallel reindex. I don't mind if the first version of
> the feature doesn't handle that, but probably we should make it work
> eventually.

Okay. I'll pursue this in HEAD.

> Well, maybe, but why is that field particularly vulnerable? I'd think you
> should crosscheck the index's relfilenode too, at least, if you're going
> to worry about that.

I agree.

I'd like to hear more opinions on the general idea. I'm particularly
interested in what Robert thinks.

--
Peter Geoghegan

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