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Message-ID: <27914bc8-f12a-4f28-b4eb-0730f5dcfb0c@aklaver.com>
Date: Tue, 21 May 2024 11:08:57 -0700
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Subject: Re: Restore of a reference database kills the auto analyze
 processing.
To: HORDER Philip <Phil.Horder@uk.thalesgroup.com>,
 "pgsql-general@lists.postgresql.org" <pgsql-general@lists.postgresql.org>
References: <c5f6948efb4b442e845a0b87aef19409@uk.thalesgroup.com>
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From: Adrian Klaver <adrian.klaver@aklaver.com>
In-Reply-To: <c5f6948efb4b442e845a0b87aef19409@uk.thalesgroup.com>
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On 5/21/24 9:29 AM, HORDER Philip wrote:
> Classified as: {OPEN}
> 
>> I am having a hard time figuring out how both of the above can be true.
>> Dropping and recreating the database would wipe out the statistics.
> 
> We have multiple databases on the one Postgres server.
> The 'postgres' database contains our main application, with tables in schema 'a'.
> We have two other databases, one of which is 'lfm'.
> 
> In PgAdmin, there is Databases (3), then those database names.
> As the superuser, I can connect to any of these databases.
> 
> When we drop database lfm, and recreate it using pg_restore, the stats collection dies, for all databases on the server: 'postgres', 'lfm', 'lfm2'
> I haven't dropped database 'postgres'
> 
> So the existing stats on tables in the 'postgres' database remain, but no further stats are collected.

 From int-postgres-log-21-05-2024.txt:

2024-05-15 03:31:31.290 GMT [4556]: [3-1] 
db=lfm,user=superuser,app=[unknown],client=::1 LOG:  connection 
authorized: user=superuser database=lfm application_name=pg_restore

That would be the lfm database being restored.

What does the log show after that as pertains to autovacuum?


> 
> Phil Horder
> Database Mechanic
> 
> Thales
> Land & Air Systems
> 
> 
> {OPEN}
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-- 
Adrian Klaver
adrian.klaver@aklaver.com