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From: Tom Lane <[email protected]>
To: Yura Sokolov <[email protected]>
Cc: [email protected]
Subject: Re: When IMMUTABLE is not.
Date: Thu, 15 Jun 2023 09:21:38 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

Yura Sokolov <[email protected]> writes:
> I found, than declaration of function as IMMUTABLE/STABLE is not enough to be sure
> function doesn't manipulate data.

Of course not.  It is the user's responsibility to mark functions
properly.  Trying to enforce that completely is a fool's errand;
you soon get into trying to solve the halting problem.

I don't like anything about the proposed patch.  It's necessarily
only a partial solution, and it probably breaks cases that are
perfectly safe in context.

			regards, tom lane

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