Github user shijinkui commented on the pull request:
https://github.com/apache/spark/pull/5164#issuecomment-85805787
@rxin , curry function's first parameter will use default value if you miss
one value. it will be compatible ï¼ï¼
test code like this:
```
object Test11 {
def main(args: Array[String]): Unit = {
a1(1)(3)
a1(1, 2)(3)
}
def a1(a: Int, b: Int = 0)(c: Int) = {
println(a + "," + b + "," + c)
}
}
```
result:
1,0,3
1,2,3
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