On Feb 4, 2008 5:14 AM, Alex Turner <armtuk@gmail.com> wrote:
> I"m not a database expert, but wouldn't
>
[...]
>
> give you a lot less pages to load than building a table with say 90 columns
> in it that are all null, which would result in better rather than worse
> performance?
Well, but PostgreSQL's NULLs occupy almost no space, or rather a bit of space,
that is one bit exactly. ;-) I am pretty much sure that storage-wise
looking NULLs
are more efficient.
Regards,
Dawid