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From: Jim Jones <jim.jones@uni-muenster.de>
To: Matheus Alcantara <matheusssilv97@gmail.com>
To: Chao Li <li.evan.chao@gmail.com>
To: PostgreSQL-development <pgsql-hackers@postgresql.org>
Cc: Andrew Dunstan <andrew@dunslane.net>
Subject: Re: Avoid leaking system path from pg_available_extensions
Date: Fri, 22 May 2026 09:25:54 +0200
Message-ID: <cf40d36e-e45a-41c2-aea1-7834bcb62da9@uni-muenster.de> (raw)
In-Reply-To: <96203151-6929-4d88-85a0-d552ee258a24@gmail.com>
References: <357C774A-ECE9-4455-B641-315205D4D9A1@gmail.com>
	<96203151-6929-4d88-85a0-d552ee258a24@gmail.com>

On 21/05/2026 17:12, Matheus Alcantara wrote:
> I've reproduced the issue and the fix looks correct to me.

same here, +1

I was wondering if creating a constant for it would be, stylistically
speaking, a cleaner solution. For instance:

#define EXTENSION_SYSTEM_MACRO  "$system"

I realize that it's used only inside get_extension_control_directories()
but since it is even mentioned in the docs, I guess it wouldn't be a bad
idea.

Thanks!

Best, Jim

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  To: pgsql-hackers@postgresql.org
  Cc: jim.jones@uni-muenster.de, matheusssilv97@gmail.com, li.evan.chao@gmail.com, andrew@dunslane.net
  Subject: Re: Avoid leaking system path from pg_available_extensions
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