What is ....

Kurt Wall kwall
Thu Feb 9 23:27:34 PST 2006


On Thu, Feb 09, 2006 at 05:33:50PM -0600, Ben Duncan took 28 lines to write:
> Most of the stuff is going to take place in the HEADER anyway.
> That is ALWAYS going to be a fixed size regardless of the database.
> Each record will have a fixed header as well - magic Number,
> page size, deleted flag, locke flag, locked by string.

That's precisely the reason to use a bitmap: to extract the needed
information from the HEADER and keep on the CPU or at least in L1
cache.

> Since it is going to be a multi value database, the format is
> going to be quite efficient anyway with no wasted space.

This doesn't even make sense. I'm not seeing the connection between a
"multi value database" (whatever that is) and the format not wasting
space.

> What you need is what you are going to use (but based upon a
> default page size allocation).

Eh?

Kurt
-- 
Spirtle, n.:
	The fine stream from a grapefruit that always lands right in
your eye.
		-- Sniglets, "Rich Hall & Friends"


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