[PD] regression testing WAS Re: [psql] object hand-holding

[Mathieu Bouchard]

On Mon, 24 Dec 2007, Mathieu Bouchard wrote:

> In most tristate electronics, the third state is WAIT,

I wasn't clear enough. There are tristate electronics that involve 3 kinds 
of outputs but only 2 kinds of inputs, so this is really just binary logic 
in which the 3rd state ("not connected") is a special trick in order to 
allow a fan-in.

But I wasn't talking at that level: "tristate logic" would have been 
clearer.

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