Re: [HACKERS] Views on aggregates - need assistence
От | Bruce Momjian |
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Тема | Re: [HACKERS] Views on aggregates - need assistence |
Дата | |
Msg-id | 199802232005.PAA05809@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: [HACKERS] Views on aggregates - need assistence (The Hermit Hacker <scrappy@hub.org>) |
Ответы |
Re: [HACKERS] Views on aggregates - need assistence
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Список | pgsql-hackers |
> > On Mon, 23 Feb 1998, Bruce Momjian wrote: > > > Actually, it does handle unions of views, but not views of unions. > > Informix doesn't support it either, and I don't know what the other > > dbms's do, but I think I am going to find out soon from someone. :-) > > What exactly would you like me to try here? *raised eyebrow* > > > create view as select oid from pg_user union select oid from pg_class or something like that. That will not work under PostgreSQL. But you can use views as part of a union: select oid from view1 union select oid from view2 -- Bruce Momjian | 830 Blythe Avenue maillist@candle.pha.pa.us | Drexel Hill, Pennsylvania 19026 + If your life is a hard drive, | (610) 353-9879(w) + Christ can be your backup. | (610) 853-3000(h)
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