Re: Is it possible to return custom type as proper ROW?

Поиск
Список
Период
Сортировка
От Merlin Moncure
Тема Re: Is it possible to return custom type as proper ROW?
Дата
Msg-id b42b73150610111427he36998dj28191e060f1963d4@mail.gmail.com
обсуждение исходный текст
Ответ на Re: Is it possible to return custom type as proper ROW?  (Jeff Davis <pgsql@j-davis.com>)
Список pgsql-general
On 10/12/06, Jeff Davis <pgsql@j-davis.com> wrote:
> > assumed column ordering is the real enemy.  Here is another place
> > where select * is imo better style than non select *:
> >
> > select q.*, bar from
> > (
> >  select a, b,c from foo
> > ) q;
> >
>
> What is "bar"?

bar is somthing else, a constant, field from related join, or
whetever.  Also, i am much more liberal about select * in views,
because the decision about columns is pushed out to the view selector:

create view foobar as
  select * from foo natural join bar;

My rationale here is the major point of the view is relating foo to
bar, not choosing columns. Also, if foo/bar gain lose columns, I have
but to drop/recreate the view without changing it's definition.  This
makes the view more functionally dependant on the tables.

merlin

В списке pgsql-general по дате отправления:

Предыдущее
От: Karsten Hilbert
Дата:
Сообщение: Re: Is it possible to return custom type as proper ROW?
Следующее
От: Richard Broersma Jr
Дата:
Сообщение: Re: strange error when inserting via a SRF into a table with a foreign key constraint