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From: Mahendra Singh Thalor <[email protected]>
To: tushar <[email protected]>
Cc: Vaibhav Dalvi <[email protected]>
Cc: [email protected]
Subject: Re: Non-text mode for pg_dumpall
Date: Thu, 11 Dec 2025 21:39:39 +0530
Message-ID: <CAKYtNAryvnS15DKdE-4QdiYeR1XKwz0RrOnsaNL72G5ubmn_hw@mail.gmail.com> (raw)
In-Reply-To: <CAC6VRoaG8-3etBR-j1vrqW875-Y2847GAsCmGqxKcMAbmyeyhA@mail.gmail.com>
References: <[email protected]>
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On Wed, 10 Dec 2025 at 19:08, tushar <[email protected]> wrote:
>
>
>
> On Tue, Dec 9, 2025 at 12:18 AM Mahendra Singh Thalor <[email protected]> wrote:
>>
>> On Mon, 8 Dec 2025 at 22:39, tushar <[email protected]> wrote:
>>
>> Here, I am attaching an updated patch for the review and testing. This
>> can be applied on commit d0d0ba6cf66c4043501f6f7.
>>
>
> Thanks, Mahendra, please refer to this scenario where  if "--transaction-size" switch  is used with pg_dumpall/pg_restore, then the table creation fails (or the table is not created)
>
> Steps to reproduce:
> 1. Connect to the psql terminal, create a table/insert rows { create table t(n int); insert into t values (generate_series(1,15)); }
> 2. Perform pg_dump operation  { ./pg_dumpall -Ft -f tar.dump }
> 3. new cluster:
> try to restore with  --transaction-size switch { ./pg_restore -Ft  tar.dump  -C -d postgres   --transaction-size=10 } =  Table failed to create
>
> I have checked via pg_dump/pg_restore using --transaction-size, and it is working fine, i.e, table is created successfully
>
> ./pg_dump -Ft -f tar.d postgres
> ./pg_restore  --transaction-size=10 -Ft -d new_database  tar.d
>
> regards,
>
>
 Thanks Tushar for the report.

If transaction-size is given as non-zero, then pg_restore behaves like
"-e/--exit-on-error". means if there is any error in restore, then
exit without restoring the full cluster.

Here, in our case, as the cluster already has a role with the current
user in restore, we are reporting error  "pg_restore: error: could not
execute query: ERROR:  role "role" already exists" and after this
error, restore is exiting.

If you restore using a different role, then you will not get any error
and the full cluster will be restored. I will add some handling to
ignore the "CREATE ROLE current_user" command in pg_restore.

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





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