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From: Alexander Lakhin <[email protected]>
To: Tom Lane <[email protected]>
To: Alexander Pyhalov <[email protected]>
Cc: Pavel Stehule <[email protected]>
Cc: Alexander Korotkov <[email protected]>
Cc: [email protected]
Cc: Ronan Dunklau <[email protected]>
Subject: Re: SQLFunctionCache and generic plans
Date: Thu, 3 Apr 2025 22:00:00 +0300
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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Hello Tom,

02.04.2025 21:09, Tom Lane wrote:
> Since feature freeze is fast approaching, I did a tiny bit more
> cosmetic work on this patchset and then pushed it.  (There's still
> plenty of time for adjustments if you have further comments.)

I've discovered that starting from 0dca5d68d, the following query:
CREATE FUNCTION f(x anyelement) RETURNS anyarray AS '' LANGUAGE SQL;
SELECT f(0);

triggers:
TRAP: failed Assert("fcache->func->rettype == VOIDOID"), File: "functions.c", Line: 1737, PID: 3784779

On 0dca5d68d~1, it raises:
ERROR:  return type mismatch in function declared to return integer[]
DETAIL:  Function's final statement must be SELECT or INSERT/UPDATE/DELETE/MERGE RETURNING.
CONTEXT:  SQL function "f" during startup

Best regards,
Alexander Lakhin
Neon (https://neon.tech)

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