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From: Amit Kapila <[email protected]>
To: Zhijie Hou (Fujitsu) <[email protected]>
Cc: Alvaro Herrera <[email protected]>
Cc: Antonin Houska <[email protected]>
Cc: Hayato Kuroda (Fujitsu) <[email protected]>
Cc: Srinath Reddy Sadipiralla <[email protected]>
Cc: Mihail Nikalayeu <[email protected]>
Cc: Matthias van de Meent <[email protected]>
Cc: Pg Hackers <[email protected]>
Cc: Robert Treat <[email protected]>
Subject: Re: Adding REPACK [concurrently]
Date: Wed, 27 May 2026 20:34:08 -0700
Message-ID: <CAA4eK1LFqdh4=b4t3OTpmCMs211-9dJEG8JdcV1ikN94LBum9w@mail.gmail.com> (raw)
In-Reply-To: <CAA4eK1Jpfe+nhV_KX0qKHTdLjwLEOPFVLrvCrXxLUxWptT6x5g@mail.gmail.com>
References: <TY4PR01MB17718B44164522D0798F8E898940A2@TY4PR01MB17718.jpnprd01.prod.outlook.com>
	<[email protected]>
	<TY4PR01MB177189B910069E99897E4323D94082@TY4PR01MB17718.jpnprd01.prod.outlook.com>
	<CAA4eK1Jpfe+nhV_KX0qKHTdLjwLEOPFVLrvCrXxLUxWptT6x5g@mail.gmail.com>

On Wed, May 27, 2026 at 5:31 PM Amit Kapila <[email protected]> wrote:
>
> On Wed, May 27, 2026 at 1:08 AM Zhijie Hou (Fujitsu)
> <[email protected]> wrote:
> >
> > 0001 remains unchanged.
> >
>
> Few minor comments:
> =================

Commit message says: "This change does not advance catalog_xmin.
REPACK already holds a snapshot that prevents catalog dead tuple
removal, so catalog_xmin handling can be addressed independently.".
Isn't it equally important to advance this, otherwise, for long
running REPACKs dead tuples will be accumulated needlessly? If so, do
we have any ideas to avoid this?

-- 
With Regards,
Amit Kapila.

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  Subject: Re: Adding REPACK [concurrently]
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