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From: Dagfinn Ilmari Mannsåker <[email protected]>
To: Álvaro Herrera <[email protected]>
Cc: Mahendra Singh Thalor <[email protected]>
Cc: jian he <[email protected]>
Cc: Srinath Reddy <[email protected]>
Cc: [email protected]
Subject: Re: Non-text mode for pg_dumpall
Date: Tue, 11 Mar 2025 17:52:17 +0000
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

Álvaro Herrera <[email protected]> writes:

> Hello,
>
> On 2025-Mar-11, Mahendra Singh Thalor wrote:
>
>> In map.dat file, I tried to fix this issue by adding number of characters
>> in dbname but as per code comments, as of now, we are not supporting \n\r
>> in dbnames so i removed handling.
>> I will do some more study to fix this issue.
>
> Yeah, I think this is saying that you should not consider the contents
> of map.dat as a shell string.  After all, you're not going to _execute_
> that file via the shell.
>
> Maybe for map.dat you need to escape such characters somehow, so that
> they don't appear as literal newlines/carriage returns.

I haven't looked at the code for this, but why are we inventing an
ad-hoc file format?  Why not use JSON, like we do for backup manifests?
Then storing arbitrary database names won't be a problem.

- ilmari

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