Re: Non-text mode for pg_dumpall

On Wed, 15 Oct 2025 at 23:05, Mahendra Singh Thalor <mahi6run(at)gmail(dot)com> wrote:
>
> On Sun, 24 Aug 2025 at 22:12, Andrew Dunstan <andrew(at)dunslane(dot)net> wrote:
> >
> >
> > On 2025-08-23 Sa 9:08 PM, Noah Misch wrote:
> >
> > On Wed, Jul 30, 2025 at 02:51:59PM -0400, Andrew Dunstan wrote:
> >
> > OK, now that's reverted we should discuss how to proceed. I had two thoughts
> > - we could use invent a JSON format for the globals, or we could just use
> > the existing archive format. I think the archive format is pretty flexible,
> > and should be able to accommodate this. The downside is it's not humanly
> > readable. The upside is that we don't need to do anything special either to
> > write it or parse it.
> >
> > I would first try to use the existing archiver API, because that makes it
> > harder to miss bugs. Any tension between that API and pg_dumpall is likely to
> > have corresponding tension on the pg_restore side. Resolving that tension
> > will reveal much of the project's scope that remained hidden during the v18
> > attempt. Perhaps more important than that, using the archiver API means
> > future pg_dump and pg_restore options are more likely to cooperate properly
> > with $SUBJECT. In other words, I want it to be hard to add pg_dump/pg_restore
> > features that malfunction only for $SUBJECT archives. The strength of the
> > archiver architecture shows in how rarely new features need format-specific
> > logic and how rarely format-specific bugs get reported. We've had little or
> > no trouble with e.g. bugs that appear in -Fd but not in -Fc.
> >
> >
> > Yeah, that's what we're going to try.
> >
> >
> > cheers
> >
> >
> > andrew
> >
> > --
> > Andrew Dunstan
> > EDB: https://www.enterprisedb.com
>
> Thanks Andrew, Noah and all others for feedback.
>
> Based on the above suggestions and discussions, I removed sql commands
> from the global.dat file. For global commands, now we are making
> toc.dat/toc.dmp/toc.tar file based on format specified and based on
> format specified, we are making archive entries for these global
> commands. By this approach, we removed the hard-coded parsing part of
> the global.dat file and we are able to skip DROP DATABASE with the
> globals-only option.
>
> Here, I am attaching a patch for review, testing and feedback. This is
> a WIP patch. I will do some more code cleanup and will add some more
> comments also. Please review this and let me know design level
> feedback. Thanks Tushar Ahuja for some internal testing and feedback.
>

Hi,
Here, I am attaching an updated patch. In offline discussion, Andrew
reported some test-case failures(Thanks Andrew). I fixed those.
Please let me know feedback for the patch.

--
Thanks and Regards
Mahendra Singh Thalor
EnterpriseDB: http://www.enterprisedb.com