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From: Tom Lane <tgl@sss.pgh.pa.us>
To: tvijlbrief@gmail.com
Cc: pgsql-bugs@lists.postgresql.org, Tomas Vondra <tomas.vondra@2ndquadrant.com>
Subject: Re: BUG #16694: Server hangs in 100% CPU loop when decompressing a specific TOAST Postgis linestring
Date: Sun, 01 Nov 2020 18:45:57 -0500
Message-ID: <578150.1604274357@sss.pgh.pa.us> (raw)
In-Reply-To: <543595.1604267856@sss.pgh.pa.us>
References: <16694-f107871e499ec114@postgresql.org>
	<543595.1604267856@sss.pgh.pa.us>

> PG Bug reporting form <noreply@postgresql.org> writes:
>> This looks to me like a low level issue with Postgres13 and TOAST objects of
>> a specific size and or compression behavior. 

After looking at it some more, I'm pretty sure that these issues could
explain your problem, though it's possible there's an additional
contributing issue.  If you're in a position to apply a patch and
see whether it fixes the problem, please try

https://git.postgresql.org/gitweb/?p=postgresql.git;a=patch;h=2330f4d3a87ac43b6ecd31bfd698384888ed03...

			regards, tom lane





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