clear cache

apache · Aug 5, 2017 · 861f255 · 861f255
1 parent a09e502
commit 861f255
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/execution/command/cache.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/command/cache.scala
@@ -22,7 +22,6 @@ import org.apache.spark.sql.catalyst.TableIdentifier
 import org.apache.spark.sql.catalyst.analysis.NoSuchTableException
 import org.apache.spark.sql.catalyst.plans.QueryPlan
 import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan
-import org.apache.spark.sql.execution.SQLExecution
 
 case class CacheTableCommand(
     tableIdent: TableIdentifier,
@@ -73,4 +72,7 @@ case class ClearCacheCommand() extends RunnableCommand {
     sparkSession.catalog.clearCache()
     Seq.empty[Row]
   }
+
+  /** [[org.apache.spark.sql.catalyst.trees.TreeNode.makeCopy()]] does not support 0-arg ctor. */
+  override def makeCopy(newArgs: Array[AnyRef]): ClearCacheCommand = ClearCacheCommand()
 }