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Date: Thu, 24 Jul 2025 16:33:15 -0400
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Subject: Re: Non-text mode for pg_dumpall
To: Noah Misch <noah@leadboat.com>
Cc: Mahendra Singh Thalor <mahi6run@gmail.com>,
 =?UTF-8?Q?=C3=81lvaro_Herrera?= <alvherre@alvh.no-ip.org>,
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From: Andrew Dunstan <andrew@dunslane.net>
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On 2025-07-21 Mo 8:53 PM, Noah Misch wrote:
>
> I suspect this is going to end with a structured dump like we use on the
> pg_dump (per-database) side.  It's not an accident that v17 pg_restore doesn't
> lex text files to do its job.  pg_dumpall deals with a more-limited set of
> statements than pg_dump deals with, but they're not _that much_ more limited.
> I won't veto a lexing-based approach if it gets the behaviors right, but I
> don't have high hopes for it getting the behaviors right and staying that way.


I have been talking offline with Mahendra about this. I agree that we 
would be better off with a structured object for globals. But the thing 
that's been striking me all afternoon as I have pondered it is that we 
should not be designing such an animal at this stage of the cycle. 
Whatever we do we're going to be stuck supporting, so I have very 
reluctantly come to the conclusion that it would probably be better to 
back the feature out and have another go for PG 19.


cheers


andrew

--
Andrew Dunstan
EDB:https://www.enterprisedb.com

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    <div class="moz-cite-prefix">On 2025-07-21 Mo 8:53 PM, Noah Misch
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:20250722005339.ca.nmisch@google.com">
      <pre wrap="" class="moz-quote-pre">

I suspect this is going to end with a structured dump like we use on the
pg_dump (per-database) side.  It's not an accident that v17 pg_restore doesn't
lex text files to do its job.  pg_dumpall deals with a more-limited set of
statements than pg_dump deals with, but they're not _that much_ more limited.
I won't veto a lexing-based approach if it gets the behaviors right, but I
don't have high hopes for it getting the behaviors right and staying that way.</pre>
    </blockquote>
    <p><br>
    </p>
    <p>I have been talking offline with Mahendra about this. I agree
      that we would be better off with a structured object for globals.
      But the thing that's been striking me all afternoon as I have
      pondered it is that we should not be designing such an animal at
      this stage of the cycle. Whatever we do we're going to be stuck
      supporting, so I have very reluctantly come to the conclusion that
      it would probably be better to back the feature out and have
      another go for PG 19.</p>
    <p><br>
    </p>
    <p>cheers</p>
    <p><br>
    </p>
    <p>andrew<span style="white-space: pre-wrap">
</span></p>
    <pre class="moz-signature"
    signature-switch-id="d0437855-2267-4610-80b3-83167ec45b0b" cols="72">--
Andrew Dunstan
EDB: <a class="moz-txt-link-freetext" href="https://www.enterprisedb.com">https://www.enterprisedb.com</a>
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