Re: Re[2]: [GENERAL] Joins and links
От | Bruce Momjian |
---|---|
Тема | Re: Re[2]: [GENERAL] Joins and links |
Дата | |
Msg-id | 199907051910.PAA07970@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re[2]: [GENERAL] Joins and links (Leon <leon@udmnet.ru>) |
Список | pgsql-general |
> Hello David, > > Monday, July 05, 1999 you wrote: > > D> I have just been thinking a bit more and have realised that the > D> multi-generational architecture of 6.5 (which I have used in Interbase) > D> means that probably both clustering (in thr dynamic sense) and full > D> record number support as request by Leon are impractical. > > D> It seems to me that record number relationships will fail completely if > D> there can be more than one version of a record. > > Maybe it is a silly question, but what are "more than one version > of a record"? In my opinion record is a atomic unique entity. > Isn't it? Read how MVCC works in the manuals. -- Bruce Momjian | http://www.op.net/~candle maillist@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026
В списке pgsql-general по дате отправления: