From: elein <elein@varlena.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: news.postgresql.org <jlim@natsoft.com.my>
Cc: pgsql-sql@postgresql.org, elein <elein@varlena.com>
Subject: Re: CHAR(n) always trims trailing spaces in 7.4
Date: Tue, 17 Feb 2004 15:17:28 -0800
Message-ID: <20040217151728.E25537@cookie.varlena.com> (raw)
In-Reply-To: <18611.1077059456@sss.pgh.pa.us>
References: <20040212000610.13913.qmail@web60806.mail.yahoo.com>
<c0pdei$ho6$1@news.hub.org>
<18611.1077059456@sss.pgh.pa.us>
This is an example of the problem. It used to expand
the middle thing to 15.
elein=# select 'x' || ' '::char(15) || 'x';
?column?
----------
xx
(1 row)
On Tue, Feb 17, 2004 at 06:10:56PM -0500, Tom Lane wrote:
> "news.postgresql.org" <jlim@natsoft.com.my> writes:
> > I just discovered the following change to CHAR(n) (taken from varlena.com,
> > general bits, issue 62).
>
> The description you quote doesn't appear to have much of anything to do
> with the actual behavior of 7.4.
>
> 7.4 will trim trailing spaces when converting char(n) to varchar or
> text, but the example query does not do that. It just coerces query
> output columns to char(n), and that works the same as it did before.
> For instance
>
> regression=# select 'zit'::char(77);
> bpchar
> -------------------------------------------------------------------------------
> zit
> (1 row)
>
>
> regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
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To: pgsql-sql@postgresql.org
Cc: elein@varlena.com, tgl@sss.pgh.pa.us, jlim@natsoft.com.my
Subject: Re: CHAR(n) always trims trailing spaces in 7.4
In-Reply-To: <20040217151728.E25537@cookie.varlena.com>
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