Github user sun-rui commented on the pull request:
https://github.com/apache/spark/pull/7356#issuecomment-121848726
@viirya,
1. Why pass the lower bound and upper bound in a vector instead of pass
separately? They are passed separately in Scala API. and A vector can not hold
complex types (at least a list is expected).
2. Instead of writing R wrapper functions individually for each method of
Scala Column, currently Column.R dynamically creates wrapper function using
template. Is it possible to use the same mechanism for supporting between?
something like:
column_functions3 <- c("between")
createColumnFunction3 <- function(name) {
setMethod(name,
signature(x = "Column"),
function(x, arg1, arg2) {
... # some check of arg1/arg2
jc <- callJMethod(x@jc, name, arg1, arg2)
column(jc)
})
}
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