Hi everyone, should be a simple task, but couldn't find an efficient
way to do it. I have a relation looks like:

a 3
b 10
c 7

I want to convert the raw metrics into percentages. the expected relation is

a 0.15
b 0.5
c 0.7

what is the best way to pass the computed total into the generate
clause for the result relation?

Regards,
Shawn

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