Github user mgaido91 commented on a diff in the pull request:
https://github.com/apache/spark/pull/20043#discussion_r171268197
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/joins/SortMergeJoinExec.scala
---
@@ -22,7 +22,7 @@ import scala.collection.mutable.ArrayBuffer
import org.apache.spark.rdd.RDD
import org.apache.spark.sql.catalyst.InternalRow
import org.apache.spark.sql.catalyst.expressions._
-import org.apache.spark.sql.catalyst.expressions.codegen.{CodegenContext,
ExprCode}
+import org.apache.spark.sql.catalyst.expressions.codegen._
--- End diff --
ditto
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