Re: Cascaded Column Drop
От | Bruce Momjian |
---|---|
Тема | Re: Cascaded Column Drop |
Дата | |
Msg-id | 200209270416.g8R4Gs904749@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: Cascaded Column Drop (Joe Conway <mail@joeconway.com>) |
Список | pgsql-patches |
Joe Conway wrote: > Bruce Momjian wrote: > > Tom Lane wrote: > >>What I was actually wondering about after reading Tim's report was > >>whether we could support zero-column tables, which would eliminate the > >>need for the special case altogether. I have not looked to see how > >>extensive are the places that assume tuples have > 0 columns ... > > > > Zero-width tables do sound interesting. Is it somehow non-relational? > > > > I can see a zero column table as a transition state maybe, but what else would > they be useful for? It's the /dev/null of the SQL world, but I'm not sure what that means. :-) -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073
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