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From: Euler Taveira <euler@eulerto.com>
To: nikolai.berkoff <nikolai.berkoff@pm.me>
To: pgsql-docs@lists.postgresql.org <pgsql-docs@lists.postgresql.org>
Subject: Re: vacuumdb --analyze-in-stages
Date: Mon, 18 Oct 2021 15:12:34 -0300
Message-ID: <c34d7d46-ef28-4fd2-84bb-7d38b039aae9@www.fastmail.com> (raw)
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References: <s-kSljtWXMWgMfGTztPTPcS80R8FHdOrBxDTnrQI6GMZbT7au1A4b0fzaSFtKwCI8nwN0MhgPLfVOTvJ7DwTjkip4P3d0o4VgrMJs4OLN-o=@pm.me>

On Fri, Oct 8, 2021, at 6:33 AM, nikolai.berkoff wrote:
> Running --analyze-in-stages on a database with statistics causes the statistics to become significantly worse before they are improved.  This could be made clearer in the documentation.
I think the paragraph you modified *already* stated that usefulness of
--analyze-in-stages (newly populated from a restored dump or by pg_upgrade). I
don't think your change is an improvement for --analyze-in-stages description.
If you read the previous paragraph, it explains _how_ (3 stages of ANALYZE with
different settings) and _why_ (produce usable statistics faster).


--
Euler Taveira
EDB   https://www.enterprisedb.com/

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