Hi,
I tried to create a function that to convert an Unix time stamp to the
hour number in a day.
It works if the code is like this:sqlContext.registerFunction("toHour",
(x:Long)=>{new java.util.Date(x*1000).getHours})
But, if I do it like this, it doesn't work:
def toHour (x:Long) = {new java.util.Date(x*1000).getHours}
sqlContext.registerFunction("toHour", toHour)
The system reports an error:<console>:23: error: missing arguments for
method toHour;follow this method with `_' if you want to treat it as a
partially applied function sqlContext.registerFunction("toHour",
toHour) Anyone can help on dealing with this error?
