== Parsed Logical Plan ==
GlobalLimit 21
+- LocalLimit 21
+- Project [cast(hostname#120 as string) AS hostname#126, cast(correct_count#121L as string) AS correct_count#127]
+- LocalRelation [hostname#120, correct_count#121L]
== Analyzed Logical Plan ==
hostname: string, correct_count: string
GlobalLimit 21
+- LocalLimit 21
+- Project [cast(hostname#120 as string) AS hostname#126, cast(correct_count#121L as string) AS correct_count#127]
+- LocalRelation [hostname#120, correct_count#121L]
== Optimized Logical Plan ==
LocalRelation [hostname#126, correct_count#127]
== Physical Plan ==
LocalTableScan [hostname#126, correct_count#127]