
> > You can remove the randomness by setting the Seed 
> configuration value,
> 
> True, but that's not the default setup.

I would set Seed per default. Even worse than a bad query path
is an unpredictable query path. I see no argument, that a random Seed
would buy us anything.

Andreas

Wed, 27 Dec 2000 09:57:39 +0100
Zeugswetter Andreas SB  <ZeugswetterA@wien.spardat.at>
AW: GEQO status? 

> I would set Seed per default. Even worse than a bad query path
> is an unpredictable query path. I see no argument, that a random Seed
> would buy us anything.

This kindof bugs me -- if you leave it stuck at a preset value, it makes it
possible to never delve into parts of solution space that have more optimal
solutions than the default seed will ever find.  Surely a random seed would
make the solution better on average over a large number of queries.

On the other hand, if the system as a whole is working well, it should not
matter what the seed is.


- Andrew


Wed, 27 Dec 2000 22:59:08 +1100
"Andrew Snow" <andrew@modulus.org>
RE: GEQO status? 