Re: SELECT DISTINCT ON bug?
| От | Bruno Wolff III |
|---|---|
| Тема | Re: SELECT DISTINCT ON bug? |
| Дата | |
| Msg-id | 20030522154957.GA1667@wolff.to обсуждение исходный текст |
| Ответ на | Re: SELECT DISTINCT ON bug? ("scott.marlowe" <scott.marlowe@ihs.com>) |
| Ответы |
Re: SELECT DISTINCT ON bug?
|
| Список | pgsql-general |
On Thu, May 22, 2003 at 08:53:10 -0600,
"scott.marlowe" <scott.marlowe@ihs.com> wrote:
>
> Wouldn't we also need them around the expression on the select line?
>
> SELECT [ ALL | DISTINCT [ ON {( expression [, ...] ) } ] ]
> { * | expression [ AS output_name ] [, ...] }
I don't think so. Where you put them you have enclosed tokens that
are only concatenated so precedence doesn't cause a problem.
The original format implies that you can have a select statement without
the SELECT keyword and that if you use the SELECT keyword you also have
to use * for the target list.
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