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Re:The surprisingly difficult problem of user-defined order ... by geekpowa on Saturday January 16, 2021 @08:16AM (#25802004)
Rationals are to decimals as arbitrary precision decimals are to binary floats.

Drill the junior devs: use decimals if you want accuracy.

What is unsaid with this: if you want accuracy with monetary representation.

Lots of problems out there where decimals are simply inappropriate.

One day, rational as a core type in postgres would be a nice addition. Rationals should belong as a core type in most every platform where general purpose compute can happen.

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