我们有两个列表需要过滤第二个列表与使用 spark scala 的第一个列表进行比较

Question

List1 = (" data center best practice design","essentials advantage","technical and business solution")  
List2 = ("data center best","essentials","data","data center","capture","mssp umbrella")

使用 Spark-scala 输出：

List_output = ("data center best","essentials","data","data center")

Answer 1

您可以使用

以下内容。

val list_output = parentList filter (childList.toSet)

Answer 2

val List_output = List2.filter（ p => List1.exists（e => e.matches（s"$p .*"）））