Re: On-Disk Tuple Size

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От Martijn van Oosterhout
Тема Re: On-Disk Tuple Size
Дата
Msg-id 20020420190410.B24214@svana.org
обсуждение исходный текст
Ответ на Re: On-Disk Tuple Size  (Curt Sampson <cjs@cynic.net>)
Ответы Re: On-Disk Tuple Size  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-hackers
On Sat, Apr 20, 2002 at 05:22:20PM +0900, Curt Sampson wrote:
> > ...and 6 bytes for the CTID, which I guess may be unnecessary.
> 
> Really? How would things work without it?

Well, from my examination of the on-disk data the CTID stored there is the
same as its location in the file, so it could just be filled in while
reading.

Unless I'm misunderstanding its purpose.

-- 
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> Canada, Mexico, and Australia form the Axis of Nations That
> Are Actually Quite Nice But Secretly Have Nasty Thoughts About America


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