strpos() function ( internal text_postion()) had a bug in unicode database.
dsn=> select id,subject, strpos(subject, ' ') from bd_22 where id = 3927;
id | subject | strpos
------+-------------+--------
3927 | 안녕하세요~ | 0
(1 row)
Time: 1.619 ms
dsn=> select id,subject, strpos(subject, ' ') from bd_22 where id between 3925 and
3927;
id | subject | strpos
------+-----------------------------------------+--------
3925 | 대구에 DB 스터디 관련한...곳..없는가요? | 4
3927 | 안녕하세요~ | 11
(2 rows)
Time: 2.490 ms
----
Sorry, above text is korean language.
strpos returns wrong result.
----- Original Message -----
From: "Tom Lane" <[EMAIL PROTECTED]>
To: "Korea PostgreSQL Users' Group" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>; "Tatsuo Ishii" <[EMAIL PROTECTED]>
Sent: Saturday, January 31, 2004 12:31 AM
Subject: Re: [PATCHES] v7.4.1 text_position() patch
> Hm. I don't think it can actually fail, because the wchar strings are
> zero-terminated. But it does look like there's a missed speedup here.
> (Tatsuo, do you agree?)
>
> Thanks for the report!
>
> regards, tom lane
>
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