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help / color / mirror / Atom feedFrom: Nathan Bossart <[email protected]>
To: Tom Lane <[email protected]>
Cc: Nitin Motiani <[email protected]>
Cc: Hannu Krosing <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: Horribly slow pg_upgrade performance with many Large Objects
Date: Fri, 18 Jul 2025 11:05:04 -0500
Message-ID: <aHpwsGXSicLArZSk@nathan> (raw)
In-Reply-To: <aHVDmAqcwanTAGZa@nathan>
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<aHVDmAqcwanTAGZa@nathan>
Committed.
I'm cautiously optimistic that we can find some better gains for upgrades
from v16 and newer. That would involve dumping lo_create() commands for
all LOs with comments/seclabels, dumping the relevant pg_shdepend rows, and
then copying/linking the pg_largeobject_metadata files like we did prior to
v12.
--
nathan
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To: [email protected]
Cc: [email protected], [email protected], [email protected], [email protected], [email protected]
Subject: Re: Horribly slow pg_upgrade performance with many Large Objects
In-Reply-To: <aHpwsGXSicLArZSk@nathan>
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