scala> df.queryExecution
res5: org.apache.spark.sql.SQLContext#QueryExecution =
== Parsed Logical Plan ==
Project [_1#0 AS ID#2,_2#1 AS Token4#3]
 LocalRelation [_1#0,_2#1], [[1,a],[2,b]]

== Analyzed Logical Plan ==
ID: int, Token4: string
Project [_1#0 AS ID#2,_2#1 AS Token4#3]
 LocalRelation [_1#0,_2#1], [[1,a],[2,b]]

== Optimized Logical Plan ==
LocalRelation [ID#2,Token4#3], [[1,a],[2,b]]

== Physical Plan ==
LocalTableScan [ID#2,Token4#3], [[1,a],[2,b]]

Code Generation: true