On January 27, 2017 07:08, Tom Lane wrote:
> ... The things I think are unique to the currency situation are: ...
Add the potential for regulatory requirements to change at any time - sort of
like timezone information. So no hard coded behavior.
rounding method/accuracy
storage precision different than display precision
conversion method (multiply, divide, triangulate, other)
use of spot rates (multiple rate sources) rather than/in addition to
time-varying rates
responding to the overall idea of a currency type
Numeric values with units so that you get a warning/error when you mix
different units in calculations? Ability to specify rounding methods and
intermediate precisions for calculations?
+1 Good ideas with lots of potential applications.
Built-in currency type?
-1 I suspect this is one of those things that seems like a good idea but really
isn't.
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