Re: CHAR(n) always trims trailing spaces in 7.4
| От | elein |
|---|---|
| Тема | Re: CHAR(n) always trims trailing spaces in 7.4 |
| Дата | |
| Msg-id | 20040217162713.H25537@cookie.varlena.com обсуждение исходный текст |
| Ответ на | Re: CHAR(n) always trims trailing spaces in 7.4 ("scott.marlowe" <scott.marlowe@ihs.com>) |
| Ответы |
Re: CHAR(n) always trims trailing spaces in 7.4
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| Список | pgsql-sql |
Apparently the ::char is cast to varchar and then text? That explains x || ' ' || x On Tue, Feb 17, 2004 at 05:07:24PM -0700, scott.marlowe wrote: > On Tue, 17 Feb 2004, Tom Lane wrote: > > > elein <elein@varlena.com> writes: > > > 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) > > > > Still does, but then the spaces go away again when the value goes into > > the concatenation, because concatenation is a text operator. > > But then this: > > select 'x'||' '||'x' > > should produce xx, but it produces x x.
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