Re: SQLFunctionCache and generic plans

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Alexander Lakhin <exclusion(at)gmail(dot)com>
Cc: Alexander Pyhalov <a(dot)pyhalov(at)postgrespro(dot)ru>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Alexander Korotkov <aekorotkov(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org, Ronan Dunklau <ronan(dot)dunklau(at)aiven(dot)io>
Subject: Re: SQLFunctionCache and generic plans
Date: 2025-04-03 19:13:50
Message-ID: 1454289.1743707630@sss.pgh.pa.us
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Alexander Lakhin <exclusion(at)gmail(dot)com> writes:
> 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

Drat. I thought I'd tested the empty-function-body case, but
evidently that was a few changes too far back. Will fix,
thanks for catching it.

regards, tom lane

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