Searching inside a map function is impossible?

```
val searchable: SearchableRDD[doc] = BroadcastIndexLuceneRDD(docRdd, luceneConfig).cache()

todoDF.map(row => {

val queryString = row.getAs[String]("the_query_string")
val query = "text" parseQuery queryString

val queryResults = searchable.aggregatingSearch(query, 10)

println(s"Results for query $query:")
queryResults foreach { result: (doc, Double) => println(f"\tscore: ${result._2}%6.3f title: ${result._1.text}") }

(1)
}).toDF("tmp").show()
```

@matteobovetti Thank you!