Re: Non-text mode for pg_dumpall

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>, Mahendra Singh Thalor <mahi6run(at)gmail(dot)com>
Cc: Vaibhav Dalvi <vaibhav(dot)dalvi(at)enterprisedb(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Non-text mode for pg_dumpall
Date: 2026-01-03 17:31:29
Message-ID: 9f656291-4ab8-4a8a-9e24-c60c3c85db78@dunslane.net
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On 2026-01-02 Fr 2:57 AM, tushar wrote:
>
>
> On Fri, Dec 12, 2025 at 9:47 PM Mahendra Singh Thalor
> <mahi6run(at)gmail(dot)com> wrote:
>
>
> > [edb(at)1a1c15437e7c bin]$ ./psql postgres
> > psql (19devel)
> > Type "help" for help.
> > postgres=# \dt
> > Did not find any tables.
> > postgres=#
> >
> > regards,
> >
>
> Hi Tushar,
> This is the handling of command line arguments.
> In code, after "-f", we expect file name, but here you are using "-C"
> which will be considered as file name. This is the case for all the
> command line arguments.
>
> If pg_restore has the "-f" option, then the "-d database" name can't
> be given and data will be copied into "-f filename" (it will not be
> restored in the cluster).
>
> Please let me know if you still have some doubts.
>
> Thanks Mahendra , that was very helpful.
>
> Please refer this scenario where i am getting error like:
> "psql:output_script4.sql:95: error: backslash commands are restricted;
> only \unrestrict is allowed"
> if i run the .sql file  generated by pg_restore command
>
> Steps to reproduce:
> ./pg_dumpall  -Ft -f  dump.tar
> ./pg_restore -Ft dump.tar  -C -v -f output_script.sql
> run this .sql file against a new cluster ( \i output.script.sql)
> restore will be done successfully but there are a few error like this
> psql:output_script4.sql:95: error: backslash commands are restricted;
> only \unrestrict is allowed
>
> Is this expected?
>

It's probably harmless, we connect to the databases further down to do
actual work. But it's also not nice. The toc.glo seems to have a bunch
of extraneous entries of type COMMENT and CONNECT. Why is that? As far
as poible this should have output pretty much identical to a plain
pg_dumpall.

cheers

andrew

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

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