== Parsed Logical Plan ==
GlobalLimit 21
+- LocalLimit 21
+- Project [cast(hostname#106 as string) AS hostname#112, cast(correct_count#107L as string) AS correct_count#113]
+- LocalRelation [hostname#106, correct_count#107L]
== Analyzed Logical Plan ==
hostname: string, correct_count: string
GlobalLimit 21
+- LocalLimit 21
+- Project [cast(hostname#106 as string) AS hostname#112, cast(correct_count#107L as string) AS correct_count#113]
+- LocalRelation [hostname#106, correct_count#107L]
== Optimized Logical Plan ==
LocalRelation [hostname#112, correct_count#113]
== Physical Plan ==
LocalTableScan [hostname#112, correct_count#113]