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From: Jeff Davis <[email protected]>
To: Andres Freund <[email protected]>
To: Corey Huinker <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Michael Paquier <[email protected]>
Cc: jian he <[email protected]>
Cc: Nathan Bossart <[email protected]>
Cc: Bruce Momjian <[email protected]>
Cc: Matthias van de Meent <[email protected]>
Cc: Magnus Hagander <[email protected]>
Cc: Stephen Frost <[email protected]>
Cc: Ashutosh Bapat <[email protected]>
Cc: Peter Smith <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: [email protected]
Subject: Re: Statistics Import and Export
Date: Mon, 24 Feb 2025 12:41:21 -0800
Message-ID: <[email protected]> (raw)
In-Reply-To: <cpdanvzykcb5o64rmapkx6n5gjypoce3y52hff7ocxupgpbxu4@53jmlyvukijo>
References: <blezfpeafycxlizyynwvwzh2vywmklhvfqudhicjrccu4raqpx@4ttfufowc2vo>
	<[email protected]>
	<CADkLM=f0a43aTd88xW4xCFayEF25g-7hTrHX_WhV40HyocsUGg@mail.gmail.com>
	<[email protected]>
	<CADkLM=ckXu5wzSQZ3Y_fvAaL8rZ+upZdSecBLf5FCTMj7M6T-A@mail.gmail.com>
	<[email protected]>
	<CADkLM=dRMC6t8gp9GVf6y6E_r5EChQjMAAh_vPyih_zMiq0zvA@mail.gmail.com>
	<y2d36zf6pl3n6ni6e4ctblu3a5iazi2dycknq53h2mjvp7lto4@hhww3h2qgdrw>
	<[email protected]>
	<CADkLM=eWSv2z_DVB=psfwHitq7DbFJQaP9A46R27eARC-4OYtQ@mail.gmail.com>
	<cpdanvzykcb5o64rmapkx6n5gjypoce3y52hff7ocxupgpbxu4@53jmlyvukijo>

On Mon, 2025-02-24 at 15:36 -0500, Andres Freund wrote:
> > 1. will inplace update pg_class to avoid table bloat
> 
> I suspect that this is a *really* bad idea.

The reason we added it is that it's what ANALYZE does, and a big
restore bloats pg_class without it.

I don't think those are major concerns for v1, so in principle I'm fine
removing it. But the problem is that it affects the documented
semantics, so it would be hard to change later, and we'd be stuck with
the bloating behavior forever.

Regards,
	Jeff Davis

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