Re: How are NULLS stored on disk for PG 7.4? - Mailing list pgsql-general

From scott.marlowe
Subject Re: How are NULLS stored on disk for PG 7.4?
Date
Msg-id Pine.LNX.4.33.0401141012130.24988-100000@css120.ihs.com
Whole thread Raw
In response to Re: How are NULLS stored on disk for PG 7.4?  (Yannick Warnier <ywarnier@beeznest.org>)
Responses Re: How are NULLS stored on disk for PG 7.4?  (vhikida@inreach.com)
List pgsql-general
On Wed, 14 Jan 2004, Yannick Warnier wrote:

> Le mar 13/01/2004 à 00:43, Bruce Momjian a écrit :
> > Arnold Mavromatis wrote:
> > > Hi
> > >
> > > How are column files in a table that have been assigned null stored on disk
> > > in Postgresql 7.4?
> >
> > Each row has a bitmap showing all the NULL values on that row.
>
> Is it the same for PG 7.3?

Yes, Postgresql has done this for quite some time.


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