make ContainsByEnd
return true
when the key is empty and region's right bound is inf
#1052
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Signed-off-by: hillium [email protected]
Ref: #1051
I think the semantic of
ContainsByEnd
should be: "Please check whether this key is in the range, if the input is empty, treat it as infinity.". But I have noticed there are already some test cases that believes "" shouldn't be in ("", ""]. I'm not sure whether it is by design.Anyway this will bring unexpected behavior sometimes (say, make infinity loops), I think perhaps we can make it better.