Re: BUG #4451: initcap() function capitalizes incorrectly

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Magnus Hagander <magnus(at)hagander(dot)net>
Cc: Scott V <datagenic(at)gmail(dot)com>, pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #4451: initcap() function capitalizes incorrectly
Date: 2008-10-06 12:37:08
Message-ID: 18902.1223296628@sss.pgh.pa.us
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Magnus Hagander <magnus(at)hagander(dot)net> writes:
> Scott V wrote:
>> PostgreSQL version: 8.3.1
>> Operating system: Mac OS X 10.5.4

>> initcap() capitalizes incorrectly when passing strings containing certain
>> two-byte UTF-8 characters. E.g., when argument = 'mtrte', initcap
>> returns 'MTRTe'. Correct result should be 'Mtrte'.

> What's your setting for lc_collate?

I think actually it's lc_ctype that determines case-folding. But the
current theory is that Apple's locale support is simply broken for
UTF-8:
http://archives.postgresql.org/pgsql-general/2008-02/msg01072.php
which means that even if Scott had all his settings right, it wouldn't
work :-( A quick test on OS X here seems to confirm this.

regards, tom lane

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