I'm interested in developing a PERCENTILE UDF, e.g. for calculating a
median, 99th percentile, 90th percentile, etc. I'd like the UDF to be
parametric with respect to the percentile being requested, but I don't see
any way to do that, and it seems like I might need to create PERCENTILE_50,
PERCENTILE_90, etc type UDFs explicitly, versus being able to do something
like GENERATE PERCENTILE(90, duration)

I'm new to Pig, so I might be missing the way to do this... is it possible?


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