Re: mcvstats serialization code is still shy of a load - Mailing list pgsql-hackers

From Tomas Vondra
Subject Re: mcvstats serialization code is still shy of a load
Date
Msg-id CAF+b1QRc2PjG4igg9G41SKasVm7DHufm7k_Uj9GA_tD3aatCxg@mail.gmail.com
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In response to Re: mcvstats serialization code is still shy of a load  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: mcvstats serialization code is still shy of a load  (Tomas Vondra <tomas.vondra@2ndquadrant.com>)
List pgsql-hackers


On Fri, Jul 5, 2019, 03:28 Tom Lane <tgl@sss.pgh.pa.us> wrote:
Tomas Vondra <tomas.vondra@2ndquadrant.com> writes:
> I was about to push into REL_12_STABLE, when I realized that maybe we
> need to do something about the catversion first. REL_12_STABLE is still
> on 201906161, while master got to 201907041 thanks to commit
> 7b925e12703.  Simply cherry-picking the commits would get us to
> 201907052 in both branches, but that'd be wrong as the catalogs do
> differ. I suppose this is what you meant by "catversion differences to
> cope with".

Yeah, exactly.

My recommendation is to use 201907051 on v12 and 201907052
on master (or whatever is $today for you).  They need to be
different now that the branches' catalog histories have diverged,
and it seems to me that the back branch should be "older".

                        regards, tom lane

Unfortunately, master is already using both 201907051 and 201907052 (two of the patches I pushed touched the catalog), so we can't quite do exactly that. We need to use 201907042 and 201907043 or something preceding 201907041 (which is the extra catversion on master).

At this point there's no perfect sequence, thanks to the extra commit on master, so REL_12_STABLE can't be exactly "older" :-(

Barring objections, I'll go ahead with 201907042+201907043 later today, before someone pushes another catversion-bumping patch.

regards

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