I try to write a third party datasource plugin for spark.
It works perfect fine in scala, but in R because I need to pass the
options, which is a map[string,string] in scala, and nothing in R works, I
failed.
I tried use named list in R, it cannot get the value since I use get in my
plugin to get the value in map.
In scala
option=Map("a"=>"b","c"->"d")
How should I construct option in R to make it work.
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