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
>
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