Revert "[SPARK-13376] [SQL] improve column pruning"

This reverts commit e9533b419e3a87589313350310890ce0caf73dbb.

1 files changed, 4 insertions, 3 deletions

diff --git a/sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/InMemoryColumnarTableScan.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/InMemoryColumnarTableScan.scala
index 22d4278085..4858140229 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/InMemoryColumnarTableScan.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/InMemoryColumnarTableScan.scala
@@ -26,8 +26,7 @@ import org.apache.spark.sql.catalyst.InternalRow
 import org.apache.spark.sql.catalyst.analysis.MultiInstanceRelation
 import org.apache.spark.sql.catalyst.dsl.expressions._
 import org.apache.spark.sql.catalyst.expressions._
-import org.apache.spark.sql.catalyst.plans.logical
-import org.apache.spark.sql.catalyst.plans.logical.Statistics
+import org.apache.spark.sql.catalyst.plans.logical.{LogicalPlan, Statistics}
 import org.apache.spark.sql.catalyst.plans.physical.Partitioning
 import org.apache.spark.sql.execution.{LeafNode, SparkPlan}
 import org.apache.spark.sql.execution.metric.SQLMetrics
@@ -64,7 +63,7 @@ private[sql] case class InMemoryRelation(
     @transient private[sql] var _cachedColumnBuffers: RDD[CachedBatch] = null,
     @transient private[sql] var _statistics: Statistics = null,
     private[sql] var _batchStats: Accumulable[ArrayBuffer[InternalRow], InternalRow] = null)
-  extends logical.LeafNode with MultiInstanceRelation {
+  extends LogicalPlan with MultiInstanceRelation {
 
   override def producedAttributes: AttributeSet = outputSet
 
@@ -185,6 +184,8 @@ private[sql] case class InMemoryRelation(
       _cachedColumnBuffers, statisticsToBePropagated, batchStats)
   }
 
+  override def children: Seq[LogicalPlan] = Seq.empty
+
   override def newInstance(): this.type = {
     new InMemoryRelation(
       output.map(_.newInstance()),