Re: Nulls, integrity, the closed world assumption and events

JOG wrote:

> dawn wrote:
>

>>JOG wrote:
>>
>>>dawn wrote:
>>>

>>>- the politics
>>>of funding requires not publishing results that destroy all of your job
>>>security or future income streams, so people's /abject/ disillusionment
>>>is substantially unreflected in publications.
>>
>>I very much understand this, as I do know a bit about this--enough to
>>resist any attempts to fund my own research at all, desiring to be
>>completely free from any external pressures (and, therefore, just
>>engaging in such efforts on the side, instead of picking up knitting at
>>my age).

>>>Nonetheless the
>>>theoretical discussion of its insufficiency should have been a good
>>>place to start.

> I am not clear what a di-graph with trees on nodes is (I envision some
> sort of nested graph structure). But let me say my grievances with
> graph based models come from bitter experience of working on a
> commercial implementation of such a thing (node identifiers and all)
> and developing an associated query language, for about two years. Given
> irreducible tuples, confusing what we ended up terming a structural
> layer (di-graphs) with the logical layer (only possible using n-ary
> edges) became an intractable problem - and one that I now see
> everywhere graph models emerge. We tried damn hard to work round it's
> deficits, and eventually had to concede defeat. The experience taught
> me that an n-ary logical model with value only addressing is essential
> in my experience. I wish I had known what I have learnt since back then.

Jim, why do you legitimize her snake oil? FWIW, in the late 1980's, I spent three or four years maintaining the source code for a proprietary network model dbms.

In the 1990's I correctly predicted that object dbmses were going nowhere because I could recognize exactly what they were. I saw people who might have contributed something waste a decade of their lives.

Oh well, it could be worse. When people were too stupid to listen to Churchill, millions of people died. A few wasted careers and some failed software projects pale in comparison. Received on Mon Jan 22 2007 - 06:49:47 CET