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?
Yannick
