Re: Issues with german locale on CentOS 5,6,7

On Thu, Oct 8, 2015 at 1:16 PM, Peter Geoghegan
<peter.geoghegan86@gmail.com> wrote:
> On Wed, Oct 7, 2015 at 4:49 PM, Thomas Munro
> <thomas.munro@enterprisedb.com> wrote:
>>> I agree that that would be almost as bad as carrying on, because there
>>> is no reason to think that the locale thing can easily be rolled back.
>>> That was my point, in fact.
>>
>> I have contemplated a maintenance script that would track either the
>> md5 checksums of the /usr/lib/locale/*/LC_COLLATE files or the version
>> of installed locale packages and automatically reindex things when
>> they change (I guess after restarting the cluster to clear any glibc
>> caches that might be lurking in long running backends).  Or at least
>> tell me that's needed.  Obviously completely OS-specific...
>
> I think we should bite the bullet and adopt ICU, without abandoning
> support for OS locales for users that really need it (certainly, many
> will need it initially when using pg_upgrade to get on to the first
> version that happens to have ICU support). I don't like suggesting a
> solution that I myself am unlikely to find the time to work on, but in
> the long run that's the only sensible approach IMV.

How would you handle changes in ICU's collation definitions?

--
Thomas Munro
http://www.enterprisedb.com