Re: [BUGS] BUG #6034: pg_upgrade fails when it should not.

On Sun, May 22, 2011 at 9:39 PM, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> Tim Uckun wrote:
>> pg_upgrade from 8.4 to 9.0 fails with the following error message.
>>
>> old and new cluster lc_collate values do not match
>>
>>
>> on 8.4 show lc_collate outputs
>> ------------
>>  en_NZ.utf8
>> (1 row)
>>
>>
>> on 9.0 it outputs
>> ------------
>>  en_NZ.UTF8
>> (1 row)
>>
>>
>> So the difference seems to be in capitalization. Presumably they are the
>> same collation with "different" names so it strikes me as odd that
>> pg_upgrade would balk and refuse to upgrade the database.
>>
>> pg_upgrade should be able to tell that these are the same collations and go
>> ahead with the upgrade.
>>
>> It also should give some indication of how to overcome the problem.
>
> [ Moved to hackers list.]
>
> Interesting.  It can be easily fixed in the C code.  Does anyone know of
> an example where the case of the locale name is significant in
> controlling the behavior?

Uh, are we talking about locale, or collation?

Because if it's collation, that seems certain to affect index contents.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
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