On Tue, Oct  7, 2014 at 03:52:24PM +0300, Heikki Linnakangas wrote:
> While looking at bug #11431, I noticed that pg_upgrade still seems
> to think that encoding and locale are cluster-wide properties. We
> got per-database locale support in 8.4, and encoding has been
> per-database much longer than that.
> 
> pg_upgrade checks the encoding and locale of template0 in both
> clusters, and throws an error if they don't match. But it doesn't
> check the locale or encoding of postgres or template1 databases.
> That leads to problems if e.g. the postgres database was dropped and
> recreated with a different encoding or locale in the old cluster. We
> will merrily upgrade it, but strings in the database will be
> incorrectly encoded.

Wow, I never thought someone would do that, but they certainly could ---
good catch.

> I propose the attached patch, for git master. It's more complicated
> in back-branches, as they still support upgrading from pre-8.4
> clusters. We haven't heard any complaints from the field on this, so
> I don't think it's worth trying to back-patch this.

Agreed.

-- 
  Bruce Momjian  <br...@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + Everyone has their own god. +


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