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From: Mihail Nikalayeu <[email protected]>
To: Antonin Houska <[email protected]>
Cc: Alvaro Herrera <[email protected]>
Cc: Pg Hackers <[email protected]>
Cc: Robert Treat <[email protected]>
Subject: Re: Adding REPACK [concurrently]
Date: Mon, 2 Feb 2026 10:18:01 +0100
Message-ID: <CADzfLwXmkRKc5jBCUT+vZ3hHOtyz7+Daa5tQ9Qnj+x8-ZuuKWw@mail.gmail.com> (raw)
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Helllo!

> I don't really pay attention to pg_repack, but I do pay quite some
attention
> to the pg_squeeze extension (which I wrote and maintain). I recall that
some
> users were surprised by the amount of disk space consumed (as the earlier
> versions of pg_squeeze were "too lazy" about WAL decoding), but I do not
> recall a single complaint about pg_squeeze causing the XID wraparound
> situation.

For "finish" I mean get out of space (in other write-heavy tables) or high
CPU usage (due to slow index scan checking the same rows again and again).
Also, you REPACK one table - and add a lot of bloat in others, in some
cases with negative impact in total.

But yes, agree about pg_squeeze here - if it is usable with such a long
transaction - REPACK CONCURRENTLY will be too.

Mikhail.


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