我执行以下操作:
val tempDict = sqlContext.sql("select words.pName_token,collect_set(words.pID) as docids
from words
group by words.pName_token").toDF()
val wordDocs = tempDict.filter(newDict("pName_token")===word)
val listDocs = wordDocs.map(t => t(1)).collect()
listDocs: Array
[Any] = Array(WrappedArray(123, 234, 205876618, 456))
Run Code Online (Sandbox Code Playgroud)
我的问题是如何迭代这个包装的数组或将其转换为列表?
我得到的选项listDocsARE apply, asInstanceOf, clone, isInstanceOf, length, toString,和 update.
我该怎么办?