Re: Re[2]: [GENERAL] Joins and links - Mailing list pgsql-general

From Bruce Momjian
Subject Re: Re[2]: [GENERAL] Joins and links
Date
Msg-id 199907051910.PAA07970@candle.pha.pa.us
Whole thread Raw
In response to Re[2]: [GENERAL] Joins and links  (Leon <leon@udmnet.ru>)
List 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

pgsql-general by date:

Previous
From: Leon
Date:
Subject: Re[2]: [GENERAL] Joins and links
Next
From: Leon
Date:
Subject: Re[4]: [GENERAL] Joins and links