From: | "Bob Badour" <bbadour(at)golden(dot)net> |
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To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Dreaming About Redesigning SQL |
Date: | 2003-10-27 02:58:23 |
Message-ID: | k62dneNXAaWCFwGiU-KYgw@golden.net |
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Lists: | pgsql-hackers |
"Christopher Browne" <cbbrowne(at)acm(dot)org> wrote in message
news:bni0s0$10g8ah$1(at)ID-125932(dot)news(dot)uni-berlin(dot)de(dot)(dot)(dot)
> "Anthony W. Youngman" <thewolery(at)nospam(dot)demon(dot)co(dot)uk> wrote:
> > In article <mhMlb(dot)2417$9E1(dot)18525(at)attbi_s52>, Marshall Spight
> > <mspight(at)dnai(dot)com> writes
> >>Unless one has data independence, one does not have
> >>this option; one will be locked into a particular
> >>performance model. This is why I found the MV
> >>guy's obvious pleasure at being able to precisely
> >>describe the performance model for his DB as odd:
> >>I thought it a deficit to be able to say what it was;
> >>he thought it an asset.
> >>
> > When you park your car, do you put the chassis on the drive, the
> > engine in the garage, and the wheels in the front garden?
>
> When I park my car, I don't particularly _care_ whether it runs on
> propane, diesel, gasoline, ethanol, or batteries.
Christopher,
You have to remember who you are talking to; Wol is ignorant and stupid. A
car is a physical artifact just as the physical representation of a datum is
a physical artifact. Physical independence is the equivalent to having a
door from the hallway to the garage, a door from the kitchen to the garage,
a door from the back yard to the garage, and car access to the driveway--and
an identical car parked in the back alley just for convenience.
Wol's analogies are dumb because they reflect his intelligence.
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