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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andrey Rachitskiy <pl0h0yp1@gmail.com>
Cc: andrew@dunslane.net
Cc: pgsql-hackers@lists.postgresql.org
Subject: Re: Residual cleanups for tied objects in PL/Perl
Date: Mon, 17 Aug 2026 13:58:04 -0400
Message-ID: <821480.1786989484@sss.pgh.pa.us> (raw)
In-Reply-To: <CAB8bMis+5m1S_VEuGsbGVL=KG+vA8mYXoPdGQQOthwp7QAQSAA@mail.gmail.com>
References: <569769.1786901901@sss.pgh.pa.us>
	<CAB8bMivzt9CGJWM--i3V5MUSXL2FSK2b1DPiJYow2rd9y6pu9A@mail.gmail.com>
	<579928.1786912017@sss.pgh.pa.us>
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	<CAB8bMisM-qSPw2qVnyjTp862LVAKpfX33_y-H1MBGzjAfwAQcg@mail.gmail.com>
	<CAB8bMivZFmWh9vvkF5HBT+Cy9y=nA2NbGhxQapGPUaZ-mNerSA@mail.gmail.com>
	<756684.1786981296@sss.pgh.pa.us>
	<761068.1786985394@sss.pgh.pa.us>
	<CAB8bMit2sRiVWfgW-ms1KciwofjHnDi4T=_xK4Zk2KFm7YBG0w@mail.gmail.com>
	<CAB8bMis+5m1S_VEuGsbGVL=KG+vA8mYXoPdGQQOthwp7QAQSAA@mail.gmail.com>

Andrey Rachitskiy <pl0h0yp1@gmail.com> writes:
> sorry, here is the correct link - `
> https://github.com/Perl/perl5/blob/c31ca2013f287840fcddf498ead9602666569966/cpan/Encode/Encode.xs#L1...`

Yeah, this is an example of the pattern I was talking about: functions
calling SvGETMAGIC on random SV*'s that are passed to them.  What
I do not see is SvGETMAGIC being called on values obtained from
hv_iternext or av_fetch.  Maybe all the internal usages in Perl are
working with hashes/arrays that they know aren't tied, but that
seems unlikely.

			regards, tom lane





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