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From: Jeff Davis <pgsql@j-davis.com>
To: Chao Li <li.evan.chao@gmail.com>
Cc: Peter Eisentraut <peter@eisentraut.org>
Cc: Thomas Munro <thomas.munro@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-hackers@postgresql.org
Subject: Re: Remaining dependency on setlocale()
Date: Tue, 16 Dec 2025 13:19:12 -0800
Message-ID: <ab5bbbd015c0b016f583e6915e787a0d6854270e.camel@j-davis.com> (raw)
In-Reply-To: <01fc00fd66f641b9693d4f9f1af0ccf44cbdfbdf.camel@j-davis.com>
References: <4c5da86af36a0d5e430eee3f60ce5e06f1b5cd34.camel@j-davis.com>
	<a8666c391dfcabe79868d95f7160eac533ace718.camel@j-davis.com>
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	<ed394f839d813762ddcd65cfcab0e062f8b5e0b1.camel@j-davis.com>
	<CA+hUKGLYcbnHBXhHk_OFwZ03LE+D=cAirm7TVN8fMhT9rgcTbA@mail.gmail.com>
	<f040113cf384ada69558ec004a04a3ddb3e40a26.camel@j-davis.com>
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	<cdd20efc0f5418c597791a1e3a5abb68fa3ce35b.camel@j-davis.com>
	<d9657a6e51aa20702447bb2386b32fea6218670f.camel@j-davis.com>
	<b1ea6756-279a-4924-9146-e125af2057b2@eisentraut.org>
	<8186b28a1a39e61a0d833a4c25a8909ebbbabd48.camel@j-davis.com>
	<450ceb6260cad30d7afdf155d991a9caafee7c0d.camel@j-davis.com>
	<DDD50039-02B4-4033-8D22-B086BC448E1C@gmail.com>
	<78edc741a168c54d57cc898a5877b6443527a2c8.camel@j-davis.com>
	<83F6E6A9-FF29-41C9-9E15-EA5360E912D0@gmail.com>
	<5f65b85740197ba6249ea507cddf609f84a6188b.camel@j-davis.com>
	<38f3f4a6-e95e-47a7-914f-110dd6191301@eisentraut.org>
	<0e186a9a92634f0c5675a618ff5685d00cd8f836.camel@j-davis.com>
	<0E8DD47F-710D-45E1-B87F-2336042A377E@gmail.com>
	<5f70ee8a3f73df753285f8928c01dd32f14d7fcb.camel@j-davis.com>
	<651F79AB-8E21-4CDD-9A5A-221AC271265E@gmail.com>
	<01fc00fd66f641b9693d4f9f1af0ccf44cbdfbdf.camel@j-davis.com>

On Tue, 2025-12-16 at 12:04 -0800, Jeff Davis wrote:
> Probably a smaller case would do, but I think it requires page splits
> to hit the bug. 0004 fixes the bug.

Because it's a clear bug, I elected to backport 0004 to v18, where the
casefolding APIs were introduced. It's a bug before that as well, but
backporting further would be more complex and/or invasive.

Regards,
	Jeff Davis






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