Re: DROP COLUMN
От | Bruce Momjian |
---|---|
Тема | Re: DROP COLUMN |
Дата | |
Msg-id | 200207161630.g6GGUVu01940@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: DROP COLUMN ("Hiroshi Inoue" <Inoue@tpf.co.jp>) |
Ответы |
Re: DROP COLUMN
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Список | pgsql-hackers |
Hiroshi Inoue wrote: > > Makes sense. Of course, we could make a syscache that didn't return > > system columns either. > > > > Actually, the original argument for negative attno's for dropped columns > > was exactly for this case, that the system column check would catch > > dropped columns too, > > > but it causes other problems that are harder to fix > > so we _dropped_ the idea. > > What does this mean ? Client programmers prefered the dropped flag rather than negative attno's so we went with that. > BTW would we do nothing for clients after all ? Clients will now need to check that dropped flag. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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