Add test for rxquery groupJoin, clarify that key selectors were actually window selectors

fsprojects / FSharp.Control.Reactive

Extensions and wrappers for using Reactive Extensions (Rx) with F#.

http://fsprojects.github.io/FSharp.Control.Reactive

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Add test for rxquery groupJoin, clarify that key selectors were actually window selectors #150

Closed deviousasti closed 4 years ago

deviousasti commented 4 years ago

GroupJoin in Rx is not like GroupJoin in Enumerable. It's aligned to finding streams of coincidences, hence selectors for a window of coincidence. That's why the selector parameters are not projections, but rather take in observables which control the overlap of the windows.

Should resolve #121.

panesofglass commented 4 years ago

Thank you!