Peter Geoghegan schrieb am 07.10.2015 um 11:33: > On Wed, Oct 7, 2015 at 2:20 AM, Bernd Helmle <mailings@xxxxxxxxxxx> wrote: >> The last day we've encountered an issue what i think is somewhat severe if >> you want to do either OS upgrades with CentOS or even binary upgrades with >> an existing PostgreSQL instance to a new machine with locale de_DE.UTF-8 >> and thus i'd like to share here. > > At the risk of getting flamed: I think that this is a bug in > PostgreSQL, not CentOS. I've said why I think that is at least once > already [1]. Simply put, there is no justification for the belief that > some people have that collations should be immutable, and there is > some justification for OS vendors updating them in a way that > disregards our use of the collations. Glibc actually versions > collations, although that isn't in any standard, and it isn't clear > that we can benefit from that beyond refusing to start the server when > a collation was superseded by a new version. I for one am not going to flame you ;) I always thought that this is a major shortcoming (if not a bug) in Postgres that the collation support is left to the OS. Because it essentially means that that exactly the same query with exactly the same data might return a different result if run on different OS Thomas -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general