Re: [PATCHES] character type value is not padded with spaces

Ahemm,...

UNICODE DB:

create table t (a char(10));
set client_encoding = iso88591;
insert into t VALUES ('æøå');

select a, octet_length(a),length(a) from t;
a | octet_length | length
------------+--------------+--------
æøå | 13 | 3
(1 row)

This is with 8.0.2.

Just FYI.

... John

> -----Original Message-----
> From: pgsql-patches-owner(at)postgresql(dot)org
> [mailto:pgsql-patches-owner(at)postgresql(dot)org] On Behalf Of Tatsuo Ishii
> Sent: Tuesday, May 24, 2005 8:52 AM
> To: y-asaba(at)sra(dot)co(dot)jp
> Cc: pgsql-patches(at)postgresql(dot)org; pgsql-hackers(at)postgresql(dot)org
> Subject: Re: [PATCHES] character type value is not padded with spaces
>
> Hackers,
>
> The problem he found is not only existing in Japanese
> characters but also in any multibyte encodings including
> UTF-8. For me the patch looks good and I will commit it to
> 7.3, 7.4, 8.0 stables and current if there's no objection.
> --
> Tatsuo Ishii
>
> > Character type value including multibyte characters is not
> padded with
> > spaces. It reproduces at 7.3.x, 7.4.x and 8.0.x.
> >
> > create table t (a char(10));
> > insert into t values ('XXXXX'); -- X is 2byte character.
> >
> > I expect that 'XXXXX ' is inserted. But 'XXXXX' is inserted.
> >
> > select a, octed_length(a) from t;
> >
> > a | octet_length
> > -------+--------------
> > XXXXX | 10
> >
> > If padded with spaces, octet_length(a) is 15. This problem
> is caused
> > that string length is calculated by byte length(VARSIZE) in
> > exprTypmod().
> >
> > I attache the patch for this problem.
> >
> > Regards,
> >
> > --
> > Yoshiyuki Asaba
> > y-asaba(at)sra(dot)co(dot)jp
>
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