Re: Non-text mode for pg_dumpall

From: Mahendra Singh Thalor <mahi6run(at)gmail(dot)com>
To: tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>
Cc: jian he <jian(dot)universality(at)gmail(dot)com>, 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: 2026-01-27 15:40:50
Message-ID: CAKYtNArc3j8Akb+nB1QyJLKic7ej7vKZqKnv_mbB+iQAJRzLnA@mail.gmail.com
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On Fri, 23 Jan 2026 at 19:07, tushar <tushar(dot)ahuja(at)enterprisedb(dot)com> wrote:
>
>
>
> On Fri, Jan 23, 2026 at 12:21 PM tushar <tushar(dot)ahuja(at)enterprisedb(dot)com> wrote:
>>
>>
>> Thanks Mahendra, a minor observation - The pg_restore output shows a double slash in the map.dat path (e.g., abc.tar//map.dat).
>> While it doesn't break the restore, we may want to clean up the path joining logic.
>>
>> [edb(at)1a1c15437e7c bin]$ ./pg_restore -Ft -C abc.tar/ -d postgres -p 9011 -U ed -v
>> pg_restore: found database "template1
>> " (OID: 1) in file "abc.tar//map.dat"
>> pg_restore: found database "postgres
>> " (OID: 5) in file "abc.tar//map.dat"
>>
>>
>
> Please refer to this scenario where - Objects created under template1 and the postgres database by a specific user are failing during a cross-cluster restore.
> When restoring to a new cluster as a different superuser, pg_restore throws the error: ERROR: role "edb" does not exist.
> It appears the restore is attempting to preserve the original ownership of template1 objects even when the target environment lacks those specific roles.
>
> Steps to reproduce:
> initdb ( ./initdb -U edb -D data) , start the server , connect to postgres and template1 database one by one and create
> this table ( create table test(n int); )
> perform pg_dumpall operation ( ./pg_dumpall -Ft -f abc.tar)
> initdb (./initdb -U xyz) , start the server , create a database ( create database abc;)
> perform pg_restore operation ( ./pg_restore -Ft -C abc.tar/ -d postgres -p 9033 -U xyz)
> --getting an error, table 'test' will be created on 'template1' database but failed to create on an another database ( in this case - 'abc' database)
>
> regards,

Hi,
Here I am attaching an updated patch for the review and testing.
Thanks Jian for the reporting rebase issue.

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

Attachment Content-Type Size
v15_27012026-Non-text-modes-for-pg_dumpall-correspondingly-change.patch application/octet-stream 90.5 KB

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