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From: Ron Johnson <[email protected]>
To: Pgsql-admin <[email protected]>
Subject: Re: pg_restore Question
Date: Sun, 22 Jun 2025 05:57:37 -0400
Message-ID: <CANzqJaCxnDC=Nzu2cNUCwHhkz3X3-txrh7L6V9OzFbb1Sqp_Sg@mail.gmail.com> (raw)
In-Reply-To: <CADqJLbWH4xgTGOWG+FMCEkJvyswsEa3g__keRXaAXXTRiaiY7A@mail.gmail.com>
References: <CA+wokJ_Qz9DYU39G3ABD6Qu95LjCT3FboYE6aW3yzcxMxSRwnw@mail.gmail.com>
	<CADqJLbWH4xgTGOWG+FMCEkJvyswsEa3g__keRXaAXXTRiaiY7A@mail.gmail.com>

This is why I do all backups, restores, upgrades, etc through cron.

On Sat, Jun 21, 2025 at 8:59 AM Furkan Shaikh <[email protected]> wrote:

>
>    -
>
>    *No Definitive Proof:* Without logs, you cannot get a timestamped log
>    entry saying "pg_restore started/finished." All these methods provide
>    indirect evidence.
>    -
>
>    *Requires Prior Knowledge:* Most effective indicators rely on you
>    having some memory or previous records of the database's state (e.g.,
>    typical sequence values, expected bloat, average last-vacuum times).
>    -
>
>    *Other Causes:* Some of these patterns (like recent statistics) could
>    also be caused by an aggressive VACUUM FULL, a major data import
>    through other means, or an application bug that resets sequences.
>
> Conclusion
>
> The most reliable indicators without direct logs are a *sudden and
> uniform resetting of last_vacuum/last_analyze timestamps to NULL or very
> recent values across all user tables*, combined with a potential change
> in object OIDs (if you tracked them) or unexpected sequence values. If you
> see most of your tables
>
> On Sat, 21 Jun, 2025, 3:41 pm Edwin UY, <[email protected]> wrote:
>
>> Hi,
>>
>> Without access to the dumpfile or log file, is there any way to check
>> whether a database has been restore either by pg_restore or other means?
>>
>> Regards,
>> Edd
>>
>>
>>

-- 
Death to <Redacted>, and butter sauce.
Don't boil me, I'm still alive.
<Redacted> lobster!


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