Subject: Re: AWS forcing PG upgrade from v9.6 a disaster
To: pgsql-performance@postgresql.org
References: <88dec70b-eb63-0b72-0b5d-253851ef127b@mailpen.com>
 <92cc8563-195f-8727-d887-5f2bb63f231f@mailpen.com>
 <20210601041635.GQ2082@telsasoft.com>
 <a38c45cf-3bbd-b43a-0f8a-11539c1c6dc1@mailpen.com>
 <a7e9da9d-7433-ee02-9e35-db6b19acdcd4@mailpen.com>
 <18f77a0c-dade-b86a-cbeb-6f85d3d137e1@dunslane.net>
From: "Dean Gibson (DB Administrator)" <postgresql@mailpen.com>
Organization: UltiMeth Systems
Message-ID: <ec18a226-6bef-7ba6-e176-c751e189270d@mailpen.com>
Date: Thu, 10 Jun 2021 09:07:52 -0700
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On 2021-06-10 03:29, Andrew Dunstan wrote:
> On 6/9/21 9:50 PM, Dean Gibson (DB Administrator) wrote:
>> First, pg_dumpall (v13.3) errors out, because on RDS, you cannot be a superuser, & it tries to dump protected stuff.  If there is a way around that, I'd like to know it, even though it's not an issue now. pg_dump works OK, but of course you don't get the roles dumped. Fortunately, I kept script files that have all the database setup, so I just ran them to create all the relationships, & then used the pg_dump output.  Worked flawlessly.
> This was added in release 12 specifically with RDS in mind:
>
>    pg_dumpall --exclude-database
>
> cheers, andrew

I guess I don't understand what that option does:

=>pg_dumpall -U Admin --exclude-database MailPen >zzz.sql
pg_dump: error: could not write to output file: No space left on device
pg_dumpall: error: pg_dump failed on database "MailPen", exiting

I expected a tiny file, not 3.5GB.  "MailPen" is the only database 
(other than what's pre-installed).  Do I need quotes on the command line?


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    <div class="moz-cite-prefix">On 2021-06-10 03:29, Andrew Dunstan
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:18f77a0c-dade-b86a-cbeb-6f85d3d137e1@dunslane.net">
      <pre class="moz-quote-pre" wrap="">
On 6/9/21 9:50 PM, Dean Gibson (DB Administrator) wrote:
</pre>
      <blockquote type="cite">
        <pre class="moz-quote-pre" wrap="">First, pg_dumpall (v13.3) errors out, because on RDS, you cannot be a superuser, &amp; it tries to dump protected stuff.  If there is a way around that, I'd like to know it, even though it's not an issue now. pg_dump works OK, but of course you don't get the roles dumped. Fortunately, I kept script files that have all the database setup, so I just ran them to create all the relationships, &amp; then used the pg_dump output.  Worked flawlessly.
</pre>
      </blockquote>
      <pre class="moz-quote-pre" wrap="">
This was added in release 12 specifically with RDS in mind:

  pg_dumpall --exclude-database

cheers, andrew</pre>
    </blockquote>
    <br>
    I guess I don't understand what that option does:<br>
    <br>
    =&gt;pg_dumpall -U Admin --exclude-database MailPen &gt;zzz.sql<br>
    pg_dump: error: could not write to output file: No space left on
    device<br>
    pg_dumpall: error: pg_dump failed on database "MailPen", exiting<br>
    <br>
    I expected a tiny file, not 3.5GB.  "MailPen" is the only database
    (other than what's pre-installed).  Do I need quotes on the command
    line?<br>
    <br>
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