Re: Re[2]: GNUstep roadmap (was Re: [Suggestion] GNUstep-test for quality control)

[Helge Hess]

On 23.10.2003, at 10:13, Manuel Guesdon wrote:
> What do you mean by it "doesn't scale" ? Is is that problems came with
> records counts, tables count or database complexity ? Do you have 
> example
> some examples ?

Well, the OmniGroup wo-dev list is *full* of examples. This is really 
too much to write down in a mail - but I would be happy to discuss the 
issue in person at next FOSDEM ;-)

Well, an issue in short:
EOF puts an object abstraction on top of a RDBMS and that abstraction 
basically disables almost any advantages a RDBMS is providing you - eg 
very much apparent with EOF doing its own constraint processing.
Basically all reasons why someone would use a RDBMS database are just 
not valid in a "pure object" context like targetted by EOF. Partial 
selects are another very good example.

I'm not attempting to start a discussion on whether EOF is good or not. 
I *know* that this is very hard, having been a "EOF Zealot" ;-) myself 
for several years. If you have worked around EOF for the 101st time and 
jumped out of the window for the huge memory requirements imposed by 
its very nature of keeping everything as objects, you'll know why this 
is a concept sounding good in theory yet being impractical.

regards,
  Helge
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