change import

Author: wangxiaojing

sql/hive/src/test/scala/org/apache/spark/sql/hive/StatisticsSuite.scala

@@ -23,7 +23,7 @@ import scala.reflect.ClassTag
 
 import org.apache.spark.sql.{SQLConf, QueryTest}
 import org.apache.spark.sql.catalyst.plans.logical.NativeCommand
-import org.apache.spark.sql.execution.joins.{HashOuterJoin, BroadcastHashOuterJoin, BroadcastHashJoin, ShuffledHashJoin}
+import org.apache.spark.sql.execution.joins._
 import org.apache.spark.sql.hive.test.TestHive
 import org.apache.spark.sql.hive.test.TestHive._