Re: Collation versioning

From: Christoph Berg <myon(at)debian(dot)org>
To: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
Cc: David Rowley <dgrowleyml(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Julien Rouhaud <rjuju123(at)gmail(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Robert Haas <robertmhaas(at)gmail(dot)com>, Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, Douglas Doole <dougdoole(at)gmail(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, Juan José Santamaría Flecha <juanjo(dot)santamaria(at)gmail(dot)com>
Subject: Re: Collation versioning
Date: 2020-11-03 22:14:42
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Re: Thomas Munro
> for all I know, "en" variants might change
> independently (I doubt it in practice, but in theory it's wrong).

Long before the glibc 2.28 incident, the same collation change
had already happened twice, namely between RedHat 5 -> 6 -> 7, for
de_DE.UTF-8 only. de_AT.UTF-8 and all other locales were unaffected.

At the time I didn't connect the dots to check if Debian was affected
as well, but of course later testing revealed it was since it was a
change in glibc.

(German blogpost:


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