http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/sort/Sorter.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/sort/Sorter.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/sort/Sorter.java
index dcb159c..eb8dfdf 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/sort/Sorter.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/sort/Sorter.java
@@ -20,14 +20,13 @@ package org.apache.drill.exec.physical.impl.sort;
 import org.apache.drill.exec.compile.TemplateClassDefinition;
 import org.apache.drill.exec.exception.SchemaChangeException;
 import org.apache.drill.exec.ops.FragmentContext;
-import org.apache.drill.exec.record.RecordBatch;
 import org.apache.drill.exec.record.VectorContainer;
 import org.apache.drill.exec.record.selection.SelectionVector4;
 
 public interface Sorter {
   public void setup(FragmentContext context, SelectionVector4 vector4, 
VectorContainer hyperBatch) throws SchemaChangeException;
   public void sort(SelectionVector4 vector4, VectorContainer container);
-  
+
   public static TemplateClassDefinition<Sorter> TEMPLATE_DEFINITION = new 
TemplateClassDefinition<Sorter>(Sorter.class, SortTemplate.class);
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/Copier.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/Copier.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/Copier.java
index dfc37c6..8ead6ab 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/Copier.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/Copier.java
@@ -21,7 +21,6 @@ import org.apache.drill.exec.compile.TemplateClassDefinition;
 import org.apache.drill.exec.exception.SchemaChangeException;
 import org.apache.drill.exec.ops.FragmentContext;
 import org.apache.drill.exec.record.RecordBatch;
-import org.apache.drill.exec.vector.allocator.VectorAllocator;
 
 public interface Copier {
   public static TemplateClassDefinition<Copier> TEMPLATE_DEFINITION2 = new 
TemplateClassDefinition<Copier>(Copier.class, CopierTemplate2.class);

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/CopierTemplate4.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/CopierTemplate4.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/CopierTemplate4.java
index 7a1c029..c42332d 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/CopierTemplate4.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/CopierTemplate4.java
@@ -23,9 +23,7 @@ import org.apache.drill.exec.exception.SchemaChangeException;
 import org.apache.drill.exec.ops.FragmentContext;
 import org.apache.drill.exec.record.RecordBatch;
 import org.apache.drill.exec.record.VectorWrapper;
-import org.apache.drill.exec.record.selection.SelectionVector2;
 import org.apache.drill.exec.record.selection.SelectionVector4;
-import org.apache.drill.exec.vector.allocator.VectorAllocator;
 
 public abstract class CopierTemplate4 implements Copier{
   static final org.slf4j.Logger logger = 
org.slf4j.LoggerFactory.getLogger(CopierTemplate4.class);

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/RemovingRecordBatch.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/RemovingRecordBatch.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/RemovingRecordBatch.java
index 4ca2cdf..97f3608 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/RemovingRecordBatch.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/RemovingRecordBatch.java
@@ -23,26 +23,19 @@ import java.util.List;
 import org.apache.drill.exec.exception.ClassTransformationException;
 import org.apache.drill.exec.exception.SchemaChangeException;
 import org.apache.drill.exec.expr.CodeGenerator;
-import org.apache.drill.exec.expr.TypeHelper;
 import org.apache.drill.exec.memory.BufferAllocator;
 import org.apache.drill.exec.memory.OutOfMemoryException;
 import org.apache.drill.exec.ops.FragmentContext;
 import org.apache.drill.exec.physical.config.SelectionVectorRemover;
 import org.apache.drill.exec.record.AbstractSingleRecordBatch;
 import org.apache.drill.exec.record.BatchSchema.SelectionVectorMode;
-import org.apache.drill.exec.record.HyperVectorWrapper;
 import org.apache.drill.exec.record.RecordBatch;
 import org.apache.drill.exec.record.TransferPair;
 import org.apache.drill.exec.record.VectorContainer;
 import org.apache.drill.exec.record.VectorWrapper;
 import org.apache.drill.exec.record.WritableBatch;
 import org.apache.drill.exec.vector.CopyUtil;
-import org.apache.drill.exec.vector.FixedWidthVector;
 import org.apache.drill.exec.vector.ValueVector;
-import org.apache.drill.exec.vector.VariableWidthVector;
-import org.apache.drill.exec.vector.allocator.FixedVectorAllocator;
-import org.apache.drill.exec.vector.allocator.VariableEstimatedVector;
-import org.apache.drill.exec.vector.allocator.VectorAllocator;
 
 import com.google.common.base.Preconditions;
 import com.google.common.collect.Lists;
@@ -186,6 +179,7 @@ public class RemovingRecordBatch extends 
AbstractSingleRecordBatch<SelectionVect
         incoming.getSchema()));
   }
 
+  @Override
   public void cleanup(){
     super.cleanup();
   }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/SVRemoverCreator.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/SVRemoverCreator.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/SVRemoverCreator.java
index a932b44..455a5f9 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/SVRemoverCreator.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/svremover/SVRemoverCreator.java
@@ -35,6 +35,6 @@ public class SVRemoverCreator implements 
BatchCreator<SelectionVectorRemover>{
     Preconditions.checkArgument(children.size() == 1);
     return new RemovingRecordBatch(config, context, 
children.iterator().next());
   }
-  
-  
+
+
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/trace/TraceBatchCreator.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/trace/TraceBatchCreator.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/trace/TraceBatchCreator.java
index a24ec70..12afa33 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/trace/TraceBatchCreator.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/trace/TraceBatchCreator.java
@@ -18,16 +18,14 @@
 
 package org.apache.drill.exec.physical.impl.trace;
 
+import java.util.List;
+
 import org.apache.drill.common.exceptions.ExecutionSetupException;
 import org.apache.drill.exec.ops.FragmentContext;
 import org.apache.drill.exec.physical.config.Trace;
 import org.apache.drill.exec.physical.impl.BatchCreator;
 import org.apache.drill.exec.record.RecordBatch;
 
-import com.google.common.base.Preconditions;
-
-import java.util.List;
-
 public class TraceBatchCreator implements BatchCreator<Trace> {
   static final org.slf4j.Logger logger = 
org.slf4j.LoggerFactory.getLogger(TraceBatchCreator.class);
 

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/trace/TraceRecordBatch.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/trace/TraceRecordBatch.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/trace/TraceRecordBatch.java
index b012cec..609cb29 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/trace/TraceRecordBatch.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/trace/TraceRecordBatch.java
@@ -27,8 +27,6 @@ import 
org.apache.drill.exec.cache.VectorAccessibleSerializable;
 import org.apache.drill.exec.exception.SchemaChangeException;
 import org.apache.drill.exec.ops.FragmentContext;
 import org.apache.drill.exec.physical.config.Trace;
-import org.apache.drill.exec.proto.ExecProtos.FragmentHandle;
-import org.apache.drill.exec.proto.helper.QueryIdHelper;
 import org.apache.drill.exec.record.AbstractSingleRecordBatch;
 import org.apache.drill.exec.record.BatchSchema.SelectionVectorMode;
 import org.apache.drill.exec.record.RecordBatch;

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/union/UnionAllBatchCreator.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/union/UnionAllBatchCreator.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/union/UnionAllBatchCreator.java
index 395cab4..7f7e110 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/union/UnionAllBatchCreator.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/union/UnionAllBatchCreator.java
@@ -35,6 +35,6 @@ public class UnionAllBatchCreator implements 
BatchCreator<UnionAll>{
     Preconditions.checkArgument(children.size() >= 1);
     return new UnionAllRecordBatch(config, children, context);
   }
-  
-  
+
+
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/union/UnionAllRecordBatch.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/union/UnionAllRecordBatch.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/union/UnionAllRecordBatch.java
index 1f2f843..6b83d04 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/union/UnionAllRecordBatch.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/union/UnionAllRecordBatch.java
@@ -149,7 +149,7 @@ public class UnionAllRecordBatch extends 
AbstractRecordBatch<UnionAll> {
   public WritableBatch getWritableBatch() {
     return WritableBatch.get(this);
   }
-  
+
   @Override
   public void cleanup() {
     super.cleanup();

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/unorderedreceiver/UnorderedReceiverBatch.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/unorderedreceiver/UnorderedReceiverBatch.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/unorderedreceiver/UnorderedReceiverBatch.java
index 16a68b8..8e7d9c6 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/unorderedreceiver/UnorderedReceiverBatch.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/unorderedreceiver/UnorderedReceiverBatch.java
@@ -17,10 +17,11 @@
  */
 package org.apache.drill.exec.physical.impl.unorderedreceiver;
 
+import io.netty.buffer.ByteBuf;
+
 import java.io.IOException;
 import java.util.Iterator;
 
-import io.netty.buffer.ByteBuf;
 import org.apache.drill.common.expression.SchemaPath;
 import org.apache.drill.exec.exception.SchemaChangeException;
 import org.apache.drill.exec.memory.OutOfMemoryException;
@@ -46,7 +47,6 @@ import 
org.apache.drill.exec.record.selection.SelectionVector2;
 import org.apache.drill.exec.record.selection.SelectionVector4;
 import org.apache.drill.exec.rpc.RpcException;
 import org.apache.drill.exec.rpc.RpcOutcomeListener;
-import org.apache.drill.exec.rpc.control.ControlTunnel.ReceiverFinished;
 
 public class UnorderedReceiverBatch implements RecordBatch {
   static final org.slf4j.Logger logger = 
org.slf4j.LoggerFactory.getLogger(UnorderedReceiverBatch.class);

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/unorderedreceiver/UnorderedReceiverCreator.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/unorderedreceiver/UnorderedReceiverCreator.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/unorderedreceiver/UnorderedReceiverCreator.java
index 6be8714..d9864f9 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/unorderedreceiver/UnorderedReceiverCreator.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/unorderedreceiver/UnorderedReceiverCreator.java
@@ -36,12 +36,12 @@ public class UnorderedReceiverCreator implements 
BatchCreator<UnorderedReceiver>
     assert children == null || children.isEmpty();
     IncomingBuffers bufHolder = context.getBuffers();
     assert bufHolder != null : "IncomingBuffers must be defined for any place 
a receiver is declared.";
-    
+
     RawBatchBuffer[] buffers = 
bufHolder.getBuffers(receiver.getOppositeMajorFragmentId());
     assert buffers.length == 1;
     RawBatchBuffer buffer = buffers[0];
     return new UnorderedReceiverBatch(context, buffer, receiver);
   }
-  
-  
+
+
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/validate/IteratorValidatorBatchIterator.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/validate/IteratorValidatorBatchIterator.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/validate/IteratorValidatorBatchIterator.java
index 14110e3..0e69bcf 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/validate/IteratorValidatorBatchIterator.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/validate/IteratorValidatorBatchIterator.java
@@ -21,7 +21,6 @@ import java.util.Iterator;
 
 import org.apache.drill.common.expression.SchemaPath;
 import org.apache.drill.exec.ops.FragmentContext;
-import org.apache.drill.exec.record.AbstractRecordBatch;
 import org.apache.drill.exec.record.BatchSchema;
 import org.apache.drill.exec.record.RecordBatch;
 import org.apache.drill.exec.record.TypedFieldId;
@@ -153,7 +152,7 @@ public class IteratorValidatorBatchIterator implements 
RecordBatch {
   public void cleanup() {
     incoming.cleanup();
   }
-  
+
   @Override
   public VectorContainer getOutgoingContainer() {
     throw new UnsupportedOperationException(String.format(" You should not 
call getOutgoingContainer() for class %s", this.getClass().getCanonicalName()));

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/ExternalSortBatchCreator.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/ExternalSortBatchCreator.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/ExternalSortBatchCreator.java
index 0078e18..eb5d83b 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/ExternalSortBatchCreator.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/ExternalSortBatchCreator.java
@@ -17,14 +17,15 @@
  */
 package org.apache.drill.exec.physical.impl.xsort;
 
-import com.google.common.base.Preconditions;
+import java.util.List;
+
 import org.apache.drill.common.exceptions.ExecutionSetupException;
 import org.apache.drill.exec.ops.FragmentContext;
 import org.apache.drill.exec.physical.config.ExternalSort;
 import org.apache.drill.exec.physical.impl.BatchCreator;
 import org.apache.drill.exec.record.RecordBatch;
 
-import java.util.List;
+import com.google.common.base.Preconditions;
 
 public class ExternalSortBatchCreator implements BatchCreator<ExternalSort>{
   static final org.slf4j.Logger logger = 
org.slf4j.LoggerFactory.getLogger(ExternalSortBatchCreator.class);
@@ -34,6 +35,6 @@ public class ExternalSortBatchCreator implements 
BatchCreator<ExternalSort>{
     Preconditions.checkArgument(children.size() == 1);
     return new ExternalSortBatch(config, context, children.iterator().next());
   }
-  
-  
+
+
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/MSortTemplate.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/MSortTemplate.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/MSortTemplate.java
index 0c98c6f..df79b1a 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/MSortTemplate.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/MSortTemplate.java
@@ -17,9 +17,10 @@
  */
 package org.apache.drill.exec.physical.impl.xsort;
 
-import com.google.common.base.Preconditions;
-import com.google.common.base.Stopwatch;
-import com.google.common.collect.Queues;
+import java.util.Queue;
+
+import javax.inject.Named;
+
 import org.apache.drill.exec.exception.SchemaChangeException;
 import org.apache.drill.exec.memory.BufferAllocator;
 import org.apache.drill.exec.ops.FragmentContext;
@@ -28,8 +29,9 @@ import org.apache.drill.exec.record.VectorContainer;
 import org.apache.drill.exec.record.selection.SelectionVector4;
 import org.apache.hadoop.util.IndexedSortable;
 
-import javax.inject.Named;
-import java.util.Queue;
+import com.google.common.base.Preconditions;
+import com.google.common.base.Stopwatch;
+import com.google.common.collect.Queues;
 
 public abstract class MSortTemplate implements MSorter, IndexedSortable{
   static final org.slf4j.Logger logger = 
org.slf4j.LoggerFactory.getLogger(MSortTemplate.class);
@@ -93,7 +95,7 @@ public abstract class MSortTemplate implements MSorter, 
IndexedSortable{
   public SelectionVector4 getSV4() {
     return vector4;
   }
-  
+
   @Override
   public void sort(VectorContainer container){
     Stopwatch watch = new Stopwatch();
@@ -137,7 +139,7 @@ public abstract class MSortTemplate implements MSorter, 
IndexedSortable{
     vector4.set(sv0, vector4.get(sv1));
     vector4.set(sv1, tmp);
   }
-  
+
   @Override
   public int compare(int leftIndex, int rightIndex) {
     int sv1 = vector4.get(leftIndex);

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/MSorter.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/MSorter.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/MSorter.java
index 1300830..e80d309 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/MSorter.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/MSorter.java
@@ -28,7 +28,7 @@ public interface MSorter {
   public void setup(FragmentContext context, BufferAllocator allocator, 
SelectionVector4 vector4, VectorContainer hyperBatch) throws 
SchemaChangeException;
   public void sort(VectorContainer container);
   public SelectionVector4 getSV4();
-  
+
   public static TemplateClassDefinition<MSorter> TEMPLATE_DEFINITION = new 
TemplateClassDefinition<MSorter>(MSorter.class, MSortTemplate.class);
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/PriorityQueueCopier.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/PriorityQueueCopier.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/PriorityQueueCopier.java
index 0eda0a6..4da3c36 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/PriorityQueueCopier.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/PriorityQueueCopier.java
@@ -17,20 +17,15 @@
  */
 package org.apache.drill.exec.physical.impl.xsort;
 
+import java.util.List;
+
 import org.apache.drill.exec.compile.TemplateClassDefinition;
 import org.apache.drill.exec.exception.SchemaChangeException;
 import org.apache.drill.exec.memory.BufferAllocator;
 import org.apache.drill.exec.ops.FragmentContext;
-import org.apache.drill.exec.physical.impl.sort.RecordBatchData;
-import org.apache.drill.exec.physical.impl.svremover.Copier;
-import org.apache.drill.exec.record.RecordBatch;
 import org.apache.drill.exec.record.VectorAccessible;
-import org.apache.drill.exec.record.VectorContainer;
-import org.apache.drill.exec.record.selection.SelectionVector4;
 import org.apache.drill.exec.vector.allocator.VectorAllocator;
 
-import java.util.List;
-
 public interface PriorityQueueCopier {
   public void setup(FragmentContext context, BufferAllocator allocator, 
VectorAccessible hyperBatch, List<BatchGroup> batchGroups,
                     VectorAccessible outgoing, List<VectorAllocator> 
allocators) throws SchemaChangeException;

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/PriorityQueueCopierTemplate.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/PriorityQueueCopierTemplate.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/PriorityQueueCopierTemplate.java
index b1c316c..951397c 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/PriorityQueueCopierTemplate.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/PriorityQueueCopierTemplate.java
@@ -31,7 +31,7 @@ import org.apache.drill.exec.vector.allocator.VectorAllocator;
 
 public abstract class PriorityQueueCopierTemplate implements 
PriorityQueueCopier {
   static final org.slf4j.Logger logger = 
org.slf4j.LoggerFactory.getLogger(PriorityQueueCopierTemplate.class);
-  
+
   private SelectionVector4 vector4;
   private List<BatchGroup> batchGroups;
   private VectorAccessible hyperBatch;
@@ -165,7 +165,7 @@ public abstract class PriorityQueueCopierTemplate 
implements PriorityQueueCopier
     vector4.set(sv0, vector4.get(sv1));
     vector4.set(sv1, tmp);
   }
-  
+
   public int compare(int leftIndex, int rightIndex) {
     int sv1 = vector4.get(leftIndex);
     int sv2 = vector4.get(rightIndex);

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/SingleBatchSorter.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/SingleBatchSorter.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/SingleBatchSorter.java
index 761e421..b37229d 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/SingleBatchSorter.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/SingleBatchSorter.java
@@ -20,16 +20,13 @@ package org.apache.drill.exec.physical.impl.xsort;
 import org.apache.drill.exec.compile.TemplateClassDefinition;
 import org.apache.drill.exec.exception.SchemaChangeException;
 import org.apache.drill.exec.ops.FragmentContext;
-import org.apache.drill.exec.physical.impl.sort.SortTemplate;
 import org.apache.drill.exec.record.RecordBatch;
-import org.apache.drill.exec.record.VectorContainer;
 import org.apache.drill.exec.record.selection.SelectionVector2;
-import org.apache.drill.exec.record.selection.SelectionVector4;
 
 public interface SingleBatchSorter {
   public void setup(FragmentContext context, SelectionVector2 vector2, 
RecordBatch incoming) throws SchemaChangeException;
   public void sort(SelectionVector2 vector2);
-  
+
   public static TemplateClassDefinition<SingleBatchSorter> TEMPLATE_DEFINITION 
= new TemplateClassDefinition<SingleBatchSorter>(SingleBatchSorter.class, 
SingleBatchSorterTemplate.class);
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/SingleBatchSorterTemplate.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/SingleBatchSorterTemplate.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/SingleBatchSorterTemplate.java
index 3cb7641..75892f9 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/SingleBatchSorterTemplate.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/SingleBatchSorterTemplate.java
@@ -17,20 +17,19 @@
  */
 package org.apache.drill.exec.physical.impl.xsort;
 
-import com.google.common.base.Preconditions;
-import com.google.common.base.Stopwatch;
+import java.util.concurrent.TimeUnit;
+
+import javax.inject.Named;
+
 import org.apache.drill.exec.exception.SchemaChangeException;
 import org.apache.drill.exec.ops.FragmentContext;
-import org.apache.drill.exec.physical.impl.sort.Sorter;
 import org.apache.drill.exec.record.RecordBatch;
-import org.apache.drill.exec.record.VectorContainer;
 import org.apache.drill.exec.record.selection.SelectionVector2;
-import org.apache.drill.exec.record.selection.SelectionVector4;
 import org.apache.hadoop.util.IndexedSortable;
 import org.apache.hadoop.util.QuickSort;
 
-import javax.inject.Named;
-import java.util.concurrent.TimeUnit;
+import com.google.common.base.Preconditions;
+import com.google.common.base.Stopwatch;
 
 public abstract class SingleBatchSorterTemplate implements SingleBatchSorter, 
IndexedSortable{
   static final org.slf4j.Logger logger = 
org.slf4j.LoggerFactory.getLogger(SingleBatchSorterTemplate.class);
@@ -42,7 +41,7 @@ public abstract class SingleBatchSorterTemplate implements 
SingleBatchSorter, In
     this.vector2 = vector2;
     doSetup(context, incoming, null);
   }
-  
+
   @Override
   public void sort(SelectionVector2 vector2){
     QuickSort qs = new QuickSort();
@@ -60,7 +59,7 @@ public abstract class SingleBatchSorterTemplate implements 
SingleBatchSorter, In
     vector2.setIndex(sv0, vector2.getIndex(sv1));
     vector2.setIndex(sv1, tmp);
   }
-  
+
   @Override
   public int compare(int leftIndex, int rightIndex) {
     char sv1 = vector2.getIndex(leftIndex);

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/StarColumnHelper.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/StarColumnHelper.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/StarColumnHelper.java
index 591faf9..aa2f786 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/StarColumnHelper.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/StarColumnHelper.java
@@ -24,26 +24,26 @@ import java.util.Set;
 import org.eigenbase.reltype.RelDataType;
 
 public class StarColumnHelper {
-  
+
   public final static String PREFIX_DELIMITER = "\u00a6\u00a6";
 
   public final static String STAR_COLUMN = "*";
- 
+
   public final static String PREFIXED_STAR_COLUMN = PREFIX_DELIMITER + 
STAR_COLUMN;
-  
+
   public static boolean containsStarColumn(RelDataType type) {
     List<String> fieldNames = type.getFieldNames();
-    
+
     for (String s : fieldNames) {
       if (s.startsWith(STAR_COLUMN))
         return true;
     }
-    
+
     return false;
   }
-  
+
   public static boolean isPrefixedStarColumn(String fieldName) {
-    return fieldName.indexOf(PREFIXED_STAR_COLUMN) > 0 ; // the delimiter * 
starts at none-zero position. 
+    return fieldName.indexOf(PREFIXED_STAR_COLUMN) > 0 ; // the delimiter * 
starts at none-zero position.
   }
 
   public static boolean isNonPrefixedStarColumn(String fieldName) {
@@ -55,26 +55,26 @@ public class StarColumnHelper {
   }
 
   public static String extractStarColumnPrefix(String fieldName) {
-    
+
     assert (isPrefixedStarColumn(fieldName));
-    
-    return fieldName.substring(0, fieldName.indexOf(PREFIXED_STAR_COLUMN)); 
+
+    return fieldName.substring(0, fieldName.indexOf(PREFIXED_STAR_COLUMN));
   }
-  
+
   public static String extractColumnPrefix(String fieldName) {
-    if (fieldName.indexOf(PREFIX_DELIMITER) >=0) { 
+    if (fieldName.indexOf(PREFIX_DELIMITER) >=0) {
       return fieldName.substring(0, fieldName.indexOf(PREFIX_DELIMITER));
     } else {
       return "";
     }
   }
-  
-  // Given a set of prefixes, check if a regular column is subsumed by any of 
the prefixed star column in the set. 
+
+  // Given a set of prefixes, check if a regular column is subsumed by any of 
the prefixed star column in the set.
   public static boolean subsumeRegColumn(Set<String> prefixes, String 
fieldName) {
     if (isPrefixedStarColumn(fieldName))
       return false;  // only applies to regular column.
-    
-    return prefixes.contains(extractColumnPrefix(fieldName));  
+
+    return prefixes.contains(extractColumnPrefix(fieldName));
   }
-  
+
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillAggregateRelBase.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillAggregateRelBase.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillAggregateRelBase.java
index 98f6bd5..c733f77 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillAggregateRelBase.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillAggregateRelBase.java
@@ -40,15 +40,15 @@ public abstract class DrillAggregateRelBase extends 
AggregateRelBase implements
       List<AggregateCall> aggCalls) throws InvalidRelException {
     super(cluster, traits, child, groupSet, aggCalls);
   }
-  
+
   @Override
   public RelOptCost computeSelfCost(RelOptPlanner planner) {
     for (AggregateCall aggCall : getAggCallList()) {
       String name = aggCall.getAggregation().getName();
-      // For avg, stddev_pop, stddev_samp, var_pop and var_samp, the 
ReduceAggregatesRule is supposed 
+      // For avg, stddev_pop, stddev_samp, var_pop and var_samp, the 
ReduceAggregatesRule is supposed
       // to convert them to use sum and count. Here, we make the cost of the 
original functions high
-      // enough such that the planner does not choose them and instead chooses 
the rewritten functions. 
-      if (name.equals("AVG") || name.equals("STDDEV_POP") || 
name.equals("STDDEV_SAMP") 
+      // enough such that the planner does not choose them and instead chooses 
the rewritten functions.
+      if (name.equals("AVG") || name.equals("STDDEV_POP") || 
name.equals("STDDEV_SAMP")
           || name.equals("VAR_POP") || name.equals("VAR_SAMP")) {
         return ((DrillCostFactory)planner.getCostFactory()).makeHugeCost();
       }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillFilterRelBase.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillFilterRelBase.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillFilterRelBase.java
index 865c0fb..f9b1e42 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillFilterRelBase.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillFilterRelBase.java
@@ -17,21 +17,13 @@
  */
 package org.apache.drill.exec.planner.common;
 
-import java.util.List;
-
 import org.apache.drill.common.expression.LogicalExpression;
-import org.apache.drill.common.logical.data.Filter;
-import org.apache.drill.common.logical.data.LogicalOperator;
 import org.apache.drill.exec.planner.cost.DrillCostBase;
 import org.apache.drill.exec.planner.cost.DrillCostBase.DrillCostFactory;
-import org.apache.drill.exec.planner.logical.DrillImplementor;
 import org.apache.drill.exec.planner.logical.DrillOptiq;
 import org.apache.drill.exec.planner.logical.DrillParseContext;
-import org.apache.drill.exec.planner.logical.DrillRel;
 import org.apache.drill.exec.planner.physical.PrelUtil;
-import org.apache.drill.exec.planner.torel.ConversionContext;
 import org.eigenbase.rel.FilterRelBase;
-import org.eigenbase.rel.InvalidRelException;
 import org.eigenbase.rel.RelNode;
 import org.eigenbase.rel.metadata.RelMetadataQuery;
 import org.eigenbase.relopt.Convention;
@@ -47,27 +39,27 @@ import org.eigenbase.rex.RexNode;
  */
 public abstract class DrillFilterRelBase extends FilterRelBase implements 
DrillRelNode {
   int numConjuncts = 0;
-  
+
   protected DrillFilterRelBase(Convention convention, RelOptCluster cluster, 
RelTraitSet traits, RelNode child, RexNode condition) {
     super(cluster, traits, child, condition);
     assert getConvention() == convention;
-    
-    // save the number of conjuncts that make up the filter condition such 
+
+    // save the number of conjuncts that make up the filter condition such
     // that repeated calls to the costing function can use the saved copy
     numConjuncts = RelOptUtil.conjunctions(condition).size();
     assert numConjuncts >= 1;
   }
-  
+
   @Override
   public RelOptCost computeSelfCost(RelOptPlanner planner) {
     if(PrelUtil.getSettings(getCluster()).useDefaultCosting()) {
-      return super.computeSelfCost(planner).multiplyBy(.1); 
+      return super.computeSelfCost(planner).multiplyBy(.1);
     }
     RelNode child = this.getChild();
     double inputRows = RelMetadataQuery.getRowCount(child);
     double cpuCost = DrillCostBase.COMPARE_CPU_COST * numConjuncts * inputRows;
     DrillCostFactory costFactory = (DrillCostFactory)planner.getCostFactory();
-    return costFactory.makeCost(inputRows, cpuCost, 0, 0);    
+    return costFactory.makeCost(inputRows, cpuCost, 0, 0);
   }
 
   protected LogicalExpression getFilterExpression(DrillParseContext context){

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillLimitRelBase.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillLimitRelBase.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillLimitRelBase.java
index ab6bc02..11164fb 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillLimitRelBase.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillLimitRelBase.java
@@ -17,29 +17,18 @@
  */
 package org.apache.drill.exec.planner.common;
 
-import java.math.BigDecimal;
-import java.util.List;
-
-import org.apache.drill.common.logical.data.Limit;
-import org.apache.drill.common.logical.data.LogicalOperator;
 import org.apache.drill.exec.planner.cost.DrillCostBase;
 import org.apache.drill.exec.planner.cost.DrillCostBase.DrillCostFactory;
-import org.apache.drill.exec.planner.logical.DrillImplementor;
-import org.apache.drill.exec.planner.logical.DrillRel;
 import org.apache.drill.exec.planner.physical.PrelUtil;
-import org.apache.drill.exec.planner.torel.ConversionContext;
-import org.eigenbase.rel.InvalidRelException;
 import org.eigenbase.rel.RelNode;
 import org.eigenbase.rel.RelWriter;
 import org.eigenbase.rel.SingleRel;
-import org.eigenbase.rel.metadata.RelMetadataQuery;
 import org.eigenbase.relopt.RelOptCluster;
 import org.eigenbase.relopt.RelOptCost;
 import org.eigenbase.relopt.RelOptPlanner;
 import org.eigenbase.relopt.RelTraitSet;
 import org.eigenbase.rex.RexLiteral;
 import org.eigenbase.rex.RexNode;
-import org.eigenbase.sql.type.SqlTypeName;
 
 /**
  * Base class for logical and physical Limits implemented in Drill
@@ -57,30 +46,31 @@ public abstract class DrillLimitRelBase extends SingleRel 
implements DrillRelNod
   public RexNode getOffset() {
     return this.offset;
   }
-  
+
   public RexNode getFetch() {
     return this.fetch;
   }
-  
+
   @Override
   public RelOptCost computeSelfCost(RelOptPlanner planner) {
     if(PrelUtil.getSettings(getCluster()).useDefaultCosting()) {
-      return super.computeSelfCost(planner).multiplyBy(.1); 
+      return super.computeSelfCost(planner).multiplyBy(.1);
     }
- 
+
     int off = offset != null ? RexLiteral.intValue(offset) : 0 ;
     int f = fetch != null ? RexLiteral.intValue(fetch) : 0 ;
     double numRows = off + f;
     double cpuCost = DrillCostBase.COMPARE_CPU_COST * numRows;
     DrillCostFactory costFactory = (DrillCostFactory)planner.getCostFactory();
-    return costFactory.makeCost(numRows, cpuCost, 0, 0);    
+    return costFactory.makeCost(numRows, cpuCost, 0, 0);
   }
-  
+
+  @Override
   public RelWriter explainTerms(RelWriter pw) {
     super.explainTerms(pw);
     pw.itemIf("offset", offset, offset != null);
     pw.itemIf("fetch", fetch, fetch != null);
     return pw;
-  }  
+  }
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillProjectRelBase.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillProjectRelBase.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillProjectRelBase.java
index 7658bb0..f440c29 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillProjectRelBase.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillProjectRelBase.java
@@ -74,24 +74,24 @@ public abstract class DrillProjectRelBase extends 
ProjectRelBase implements Dril
   // By default, the project will not allow duplicate columns, caused by 
expanding from * column.
   // For example, if we have T1_*, T1_Col1, T1_Col2, Col1 and Col2 will have 
two copies if we expand
   // * into a list of regular columns.  For the intermediate project, the 
duplicate columns are not
-  // necessary; it will impact performance. 
+  // necessary; it will impact performance.
   protected List<NamedExpression> getProjectExpressions(DrillParseContext 
context) {
     List<NamedExpression> expressions = Lists.newArrayList();
-    
+
     HashSet<String> starColPrefixes = new HashSet<String>();
-    
+
     // To remove duplicate columns caused by expanding from * column, we'll 
keep track of
     // all the prefix in the project expressions. If a regular column C1 have 
the same prefix, that
-    // regular column is not included in the project expression, since at 
execution time, * will be 
-    // expanded into a list of column, including column C1. 
+    // regular column is not included in the project expression, since at 
execution time, * will be
+    // expanded into a list of column, including column C1.
     for (String fieldName : getRowType().getFieldNames()) {
       if (StarColumnHelper.isPrefixedStarColumn(fieldName)) {
         
starColPrefixes.add(StarColumnHelper.extractStarColumnPrefix(fieldName));
       }
     }
-    
+
     for (Pair<RexNode, String> pair : projects()) {
-      if (! StarColumnHelper.subsumeRegColumn(starColPrefixes, pair.right)) { 
+      if (! StarColumnHelper.subsumeRegColumn(starColPrefixes, pair.right)) {
         LogicalExpression expr = DrillOptiq.toDrill(context, getChild(), 
pair.left);
         expressions.add(new NamedExpression(expr, 
FieldReference.getWithQuotedRef(pair.right)));
       }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillRelOptUtil.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillRelOptUtil.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillRelOptUtil.java
index 58dc34d..270462b 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillRelOptUtil.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillRelOptUtil.java
@@ -25,7 +25,7 @@ import org.eigenbase.sql.type.SqlTypeName;
 import org.eigenbase.util.Pair;
 
 /**
- * Utility class that is a subset of the RelOptUtil class and is a placeholder 
for Drill specific 
+ * Utility class that is a subset of the RelOptUtil class and is a placeholder 
for Drill specific
  * static methods that are needed during either logical or physical planning.
  */
 public abstract class DrillRelOptUtil {
@@ -34,7 +34,7 @@ public abstract class DrillRelOptUtil {
   public static boolean areRowTypesEqual(
       RelDataType rowType1,
       RelDataType rowType2,
-      boolean compareNames, 
+      boolean compareNames,
       boolean allowSubstring) {
     if (rowType1 == rowType2) {
       return true;
@@ -58,11 +58,11 @@ public abstract class DrillRelOptUtil {
         continue;
       }
       if (!type1.equals(type2)) {
-        if (allowSubstring 
-            && (type1.getSqlTypeName() == SqlTypeName.CHAR && 
type2.getSqlTypeName() == SqlTypeName.CHAR) 
+        if (allowSubstring
+            && (type1.getSqlTypeName() == SqlTypeName.CHAR && 
type2.getSqlTypeName() == SqlTypeName.CHAR)
             && (type1.getPrecision() <= type2.getPrecision())) {
           return true;
-        }           
+        }
         return false;
       }
     }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillScanRelBase.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillScanRelBase.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillScanRelBase.java
index 331069d..0934818 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillScanRelBase.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillScanRelBase.java
@@ -25,8 +25,8 @@ import org.eigenbase.relopt.RelOptTable;
 import org.eigenbase.relopt.RelTraitSet;
 
 /**
- * Base class for logical scan rel implemented in Drill. 
- * NOTE: we should eventually make this class independent of 
TableAccessRelBase and then 
+ * Base class for logical scan rel implemented in Drill.
+ * NOTE: we should eventually make this class independent of 
TableAccessRelBase and then
  * make it the base class for logical and physical scan rels.
  */
 public abstract class DrillScanRelBase extends TableAccessRelBase implements 
DrillRelNode {
@@ -37,5 +37,5 @@ public abstract class DrillScanRelBase extends 
TableAccessRelBase implements Dri
     this.drillTable = table.unwrap(DrillTable.class);
     assert drillTable != null;
   }
-  
+
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillScreenRelBase.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillScreenRelBase.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillScreenRelBase.java
index 23b53f3..9b31fb0 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillScreenRelBase.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillScreenRelBase.java
@@ -17,7 +17,6 @@
  */
 package org.apache.drill.exec.planner.common;
 
-import org.apache.drill.exec.planner.cost.DrillCostBase;
 import org.apache.drill.exec.planner.cost.DrillCostBase.DrillCostFactory;
 import org.apache.drill.exec.planner.physical.PrelUtil;
 import org.eigenbase.rel.RelNode;
@@ -42,7 +41,7 @@ public abstract class DrillScreenRelBase extends SingleRel 
implements DrillRelNo
   @Override
   public RelOptCost computeSelfCost(RelOptPlanner planner) {
     if(PrelUtil.getSettings(getCluster()).useDefaultCosting()) {
-      return super.computeSelfCost(planner).multiplyBy(.1); 
+      return super.computeSelfCost(planner).multiplyBy(.1);
     }
     // by default, assume cost is proportional to number of rows
     double rowCount = RelMetadataQuery.getRowCount(this);

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillStoreRelBase.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillStoreRelBase.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillStoreRelBase.java
index c6e3ae1..adf7d6b 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillStoreRelBase.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillStoreRelBase.java
@@ -36,7 +36,7 @@ public abstract class DrillStoreRelBase extends 
TableModificationRelBase impleme
   protected DrillStoreRelBase(RelOptCluster cluster, RelTraitSet traits, 
RelOptTable table, CatalogReader catalogReader,
       RelNode child, Operation operation, List<String> updateColumnList, 
boolean flattened) {
     super(cluster, traits, table, catalogReader, child, operation, 
updateColumnList, flattened);
-    
+
   }
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillUnionRelBase.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillUnionRelBase.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillUnionRelBase.java
index fa0465f..127798f 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillUnionRelBase.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/common/DrillUnionRelBase.java
@@ -23,18 +23,14 @@ import org.eigenbase.rel.InvalidRelException;
 import org.eigenbase.rel.RelNode;
 import org.eigenbase.rel.UnionRelBase;
 import org.eigenbase.relopt.RelOptCluster;
-import org.eigenbase.relopt.RelOptUtil;
 import org.eigenbase.relopt.RelTraitSet;
 import org.eigenbase.reltype.RelDataType;
-import org.eigenbase.reltype.RelDataTypeField;
-import org.eigenbase.sql.type.SqlTypeName;
-import org.eigenbase.util.Pair;
 
 /**
  * Base class for logical and physical Union implemented in Drill
  */
 public abstract class DrillUnionRelBase extends UnionRelBase implements 
DrillRelNode {
- 
+
   public DrillUnionRelBase(RelOptCluster cluster, RelTraitSet traits,
       List<RelNode> inputs, boolean all) throws InvalidRelException {
     super(cluster, traits, inputs, all);
@@ -43,7 +39,7 @@ public abstract class DrillUnionRelBase extends UnionRelBase 
implements DrillRel
       throw new InvalidRelException("Input row types of the Union are not 
compatible.");
     }
   }
-  
+
   public boolean isCompatible(boolean compareNames, boolean allowSubstring) {
     RelDataType unionType = getRowType();
     for (RelNode input : getInputs()) {

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/cost/DrillCostBase.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/cost/DrillCostBase.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/cost/DrillCostBase.java
index 50e4fb6..c33bb22 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/cost/DrillCostBase.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/cost/DrillCostBase.java
@@ -29,12 +29,12 @@ public class DrillCostBase implements DrillRelOptCost {
 
   /**
    * NOTE: the multiplication factors below are not calibrated yet...these
-   * are chosen based on approximations for now. For reference purposes, 
-   * assume each disk on a server can have a sustained I/O throughput of 
+   * are chosen based on approximations for now. For reference purposes,
+   * assume each disk on a server can have a sustained I/O throughput of
    * 100 MBytes/sec.  Suppose there is an array of 16 disks per 
server..theoretically
-   * one could get 1.6GBytes/sec. Suppose network speed is 1GBit/sec which is 
+   * one could get 1.6GBytes/sec. Suppose network speed is 1GBit/sec which is
    * 128MBytes/sec, although actual transfer rate over the network may be 
lower.
-   * We are only concerned with relative costs, not absolute values.  
+   * We are only concerned with relative costs, not absolute values.
    * For relative costing, let's assume sending data over the network is
    * about 16x slower than reading/writing to an array of local disks.
    */
@@ -47,48 +47,50 @@ public class DrillCostBase implements DrillRelOptCost {
   public static final int FUNC_CPU_COST = 12 * BASE_CPU_COST;         // cpu 
cost for a function evaluation
 
   // cpu cost for projecting an expression; note that projecting an expression
-  // that is not a simple column or constant may include evaluation, but we 
-  // currently don't model it at that level of detail.  
-  public static final int PROJECT_CPU_COST = 4 * BASE_CPU_COST;       
+  // that is not a simple column or constant may include evaluation, but we
+  // currently don't model it at that level of detail.
+  public static final int PROJECT_CPU_COST = 4 * BASE_CPU_COST;
 
-  // hash cpu cost per field (for now we don't distinguish between fields of 
different types) involves 
-  // the cost of the following operations: 
+  // hash cpu cost per field (for now we don't distinguish between fields of 
different types) involves
+  // the cost of the following operations:
   // compute hash value, probe hash table, walk hash chain and compare with 
each element,
   // add to the end of hash chain if no match found
-  public static final int HASH_CPU_COST = 8 * BASE_CPU_COST;  
- 
+  public static final int HASH_CPU_COST = 8 * BASE_CPU_COST;
+
   public static final int RANGE_PARTITION_CPU_COST = 12 * BASE_CPU_COST;
-      
-  // cost of comparing one field with another (ignoring data types for now) 
-  public static final int COMPARE_CPU_COST = 4 * BASE_CPU_COST;   
+
+  // cost of comparing one field with another (ignoring data types for now)
+  public static final int COMPARE_CPU_COST = 4 * BASE_CPU_COST;
   public static final int AVG_FIELD_WIDTH = 8;
-  
-  /** For the costing formulas in computeSelfCost(), assume the following 
notations: 
-  * Let 
-  *   C = Cost per node. 
+
+  /** For the costing formulas in computeSelfCost(), assume the following 
notations:
+  * Let
+  *   C = Cost per node.
   *   k = number of fields on which to distribute on
-  *   h = CPU cost of computing hash value on 1 field 
+  *   h = CPU cost of computing hash value on 1 field
   *   s = CPU cost of Selection-Vector remover per row
   *   w = Network cost of sending 1 row to 1 destination
   *   c = CPU cost of comparing an incoming row with one on a heap of size N
   */
-  
+
   static final DrillCostBase INFINITY =
       new DrillCostBase(
           Double.POSITIVE_INFINITY,
           Double.POSITIVE_INFINITY,
-          Double.POSITIVE_INFINITY, 
+          Double.POSITIVE_INFINITY,
           Double.POSITIVE_INFINITY) {
+        @Override
         public String toString() {
           return "{inf}";
         }
       };
 
   static final DrillCostBase HUGE =
-      new DrillCostBase(Double.MAX_VALUE, 
-        Double.MAX_VALUE, 
-        Double.MAX_VALUE, 
+      new DrillCostBase(Double.MAX_VALUE,
+        Double.MAX_VALUE,
+        Double.MAX_VALUE,
         Double.MAX_VALUE) {
+        @Override
         public String toString() {
           return "{huge}";
         }
@@ -96,6 +98,7 @@ public class DrillCostBase implements DrillRelOptCost {
 
   static final DrillCostBase ZERO =
       new DrillCostBase(0.0, 0.0, 0.0, 0.0) {
+        @Override
         public String toString() {
           return "{0}";
         }
@@ -103,6 +106,7 @@ public class DrillCostBase implements DrillRelOptCost {
 
   static final DrillCostBase TINY =
       new DrillCostBase(1.0, 1.0, 0.0, 0.0) {
+        @Override
         public String toString() {
           return "{tiny}";
         }
@@ -160,7 +164,7 @@ public class DrillCostBase implements DrillRelOptCost {
     return (this == INFINITY)
       || (this.cpu == Double.POSITIVE_INFINITY)
       || (this.io == Double.POSITIVE_INFINITY)
-      || (this.network == Double.POSITIVE_INFINITY) 
+      || (this.network == Double.POSITIVE_INFINITY)
       || (this.rowCount == Double.POSITIVE_INFINITY);
        }
 
@@ -168,8 +172,8 @@ public class DrillCostBase implements DrillRelOptCost {
        public boolean equals(RelOptCost other) {
          // here we compare the individual components similar to VolcanoCost, 
however
          // an alternative would be to add up the components and compare the 
total.
-         // Note that VolcanoPlanner mainly uses isLe() and isLt() for cost 
comparisons, 
-         // not equals(). 
+         // Note that VolcanoPlanner mainly uses isLe() and isLt() for cost 
comparisons,
+         // not equals().
     return this == other
       || (other instanceof DrillCostBase
           && (this.cpu == ((DrillCostBase) other).cpu)
@@ -184,20 +188,20 @@ public class DrillCostBase implements DrillRelOptCost {
       return false;
     }
     DrillCostBase that = (DrillCostBase) other;
-    return (this == that) 
+    return (this == that)
       || ((Math.abs(this.cpu - that.cpu) < RelOptUtil.EPSILON)
           && (Math.abs(this.io - that.io) < RelOptUtil.EPSILON)
           && (Math.abs(this.network - that.network) < RelOptUtil.EPSILON)
           && (Math.abs(this.rowCount - that.rowCount) < RelOptUtil.EPSILON));
        }
-       
+
   @Override
   public boolean isLe(RelOptCost other) {
     DrillCostBase that = (DrillCostBase) other;
- 
-    return this == that 
+
+    return this == that
       || ( (this.cpu + this.io + this.network) <=
-           (that.cpu + that.io + that.network) 
+           (that.cpu + that.io + that.network)
           && this.rowCount <= that.rowCount
          );
   }
@@ -206,12 +210,12 @@ public class DrillCostBase implements DrillRelOptCost {
   public boolean isLt(RelOptCost other) {
     DrillCostBase that = (DrillCostBase) other;
 
-     return ( (this.cpu + this.io + this.network) < 
-             (that.cpu + that.io + that.network) 
+     return ( (this.cpu + this.io + this.network) <
+             (that.cpu + that.io + that.network)
             && this.rowCount <= that.rowCount
            );
   }
-       
+
        @Override
        public RelOptCost plus(RelOptCost other) {
     DrillCostBase that = (DrillCostBase) other;
@@ -290,10 +294,11 @@ public class DrillCostBase implements DrillRelOptCost {
     return Math.pow(d, 1 / n);
        }
 
+  @Override
   public String toString() {
     return "{" + rowCount + " rows, " + cpu + " cpu, " + io + " io, " + 
network + " network, " + memory + " memory}";
   }
-  
+
   public static class DrillCostFactory implements DrillRelOptCostFactory {
 
     public RelOptCost makeCost(double dRows, double dCpu, double dIo, double 
dNetwork, double dMemory) {
@@ -303,11 +308,11 @@ public class DrillCostBase implements DrillRelOptCost {
     public RelOptCost makeCost(double dRows, double dCpu, double dIo, double 
dNetwork) {
       return new DrillCostBase(dRows, dCpu, dIo, dNetwork, 0);
     }
-               
+
     public RelOptCost makeCost(double dRows, double dCpu, double dIo) {
       return new DrillCostBase(dRows, dCpu, dIo, 0, 0);
     }
-               
+
     public RelOptCost makeHugeCost() {
       return DrillCostBase.HUGE;
     }
@@ -323,6 +328,6 @@ public class DrillCostBase implements DrillRelOptCost {
     public RelOptCost makeZeroCost() {
       return DrillCostBase.ZERO;
     }
-  }    
-       
+  }
+
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/cost/DrillRelOptCost.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/cost/DrillRelOptCost.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/cost/DrillRelOptCost.java
index 8f20658..88e4e28 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/cost/DrillRelOptCost.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/cost/DrillRelOptCost.java
@@ -21,7 +21,7 @@ package org.apache.drill.exec.planner.cost;
 import org.eigenbase.relopt.RelOptCost;
 
 public interface DrillRelOptCost extends RelOptCost {
-       
+
        double getNetwork();
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/Fragment.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/Fragment.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/Fragment.java
index 5454e8f..47d6f14 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/Fragment.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/Fragment.java
@@ -23,30 +23,29 @@ import java.util.List;
 import org.apache.drill.exec.exception.FragmentSetupException;
 import org.apache.drill.exec.physical.base.Exchange;
 import org.apache.drill.exec.physical.base.PhysicalOperator;
-import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint;
 
 import com.google.common.collect.Lists;
 
 public class Fragment implements Iterable<Fragment.ExchangeFragmentPair>{
   static final org.slf4j.Logger logger = 
org.slf4j.LoggerFactory.getLogger(Fragment.class);
-  
+
   private PhysicalOperator root;
   private Exchange sendingExchange;
   private final List<ExchangeFragmentPair> receivingExchangePairs = 
Lists.newLinkedList();
   private Stats stats = new Stats();
-  
+
   public void addOperator(PhysicalOperator o){
     if(root == null){
       root = o;
     }
   }
-  
+
   public void addSendExchange(Exchange e) throws FragmentSetupException{
     if(sendingExchange != null) throw new FragmentSetupException("Fragment was 
trying to add a second SendExchange.  ");
     addOperator(e);
     sendingExchange = e;
   }
-  
+
   public void addReceiveExchange(Exchange e, Fragment fragment){
     this.receivingExchangePairs.add(new ExchangeFragmentPair(e, fragment));
   }
@@ -71,11 +70,11 @@ public class Fragment implements 
Iterable<Fragment.ExchangeFragmentPair>{
 //  public <T, V> T accept(FragmentVisitor<T, V> visitor, V extra){
 //    return visitor.visit(this, extra);
 //  }
-  
+
   public Stats getStats(){
     return stats;
   }
-  
+
   public class ExchangeFragmentPair {
     private Exchange exchange;
     private Fragment node;
@@ -102,9 +101,9 @@ public class Fragment implements 
Iterable<Fragment.ExchangeFragmentPair>{
     public String toString() {
       return "ExchangeFragmentPair [exchange=" + exchange + "]";
     }
-    
-    
-    
+
+
+
   }
 
   @Override
@@ -145,6 +144,6 @@ public class Fragment implements 
Iterable<Fragment.ExchangeFragmentPair>{
         + receivingExchangePairs + ", stats=" + stats + "]";
   }
 
-  
- 
+
+
 }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/MakeFragmentsVisitor.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/MakeFragmentsVisitor.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/MakeFragmentsVisitor.java
index 58a5646..690fe45 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/MakeFragmentsVisitor.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/MakeFragmentsVisitor.java
@@ -29,10 +29,10 @@ import org.apache.drill.exec.physical.base.SubScan;
 public class MakeFragmentsVisitor extends AbstractPhysicalVisitor<Fragment, 
Fragment, FragmentSetupException> {
   static final org.slf4j.Logger logger = 
org.slf4j.LoggerFactory.getLogger(MakeFragmentsVisitor.class);
 
-  
+
   public MakeFragmentsVisitor(){
   }
-  
+
   @Override
   public Fragment visitExchange(Exchange exchange, Fragment value) throws 
FragmentSetupException {
 //    logger.debug("Visiting Exchange {}", exchange);
@@ -60,7 +60,7 @@ public class MakeFragmentsVisitor extends 
AbstractPhysicalVisitor<Fragment, Frag
     }
     return value;
   }
-  
+
   private Fragment ensureBuilder(Fragment value) throws FragmentSetupException{
     if(value != null){
       return value;
@@ -68,7 +68,7 @@ public class MakeFragmentsVisitor extends 
AbstractPhysicalVisitor<Fragment, Frag
       return getNextBuilder();
     }
   }
-  
+
   public Fragment getNextBuilder(){
     return new Fragment();
   }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/PlanningSet.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/PlanningSet.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/PlanningSet.java
index da4380f..8cc6c85 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/PlanningSet.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/fragment/PlanningSet.java
@@ -20,7 +20,6 @@ package org.apache.drill.exec.planner.fragment;
 import java.util.Iterator;
 import java.util.Map;
 
-import org.apache.drill.exec.ops.QueryContext;
 import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint;
 
 import com.google.common.collect.Maps;

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/CreateTableEntry.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/CreateTableEntry.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/CreateTableEntry.java
index 7f6acd9..673e8c6 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/CreateTableEntry.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/CreateTableEntry.java
@@ -18,13 +18,14 @@
 
 package org.apache.drill.exec.planner.logical;
 
-import com.fasterxml.jackson.annotation.JsonSubTypes;
-import com.fasterxml.jackson.annotation.JsonSubTypes.Type;
-import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import java.io.IOException;
+
 import org.apache.drill.exec.physical.base.PhysicalOperator;
 import org.apache.drill.exec.physical.base.Writer;
 
-import java.io.IOException;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonSubTypes.Type;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
 
 /**
  * Interface that provides the info needed to create a new table. A storage 
engine

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillAggregateRel.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillAggregateRel.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillAggregateRel.java
index fe5130c..e31aaa7 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillAggregateRel.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillAggregateRel.java
@@ -51,6 +51,7 @@ public class DrillAggregateRel extends DrillAggregateRelBase 
implements DrillRel
     super(cluster, traits, child, groupSet, aggCalls);
   }
 
+  @Override
   public AggregateRelBase copy(RelTraitSet traitSet, RelNode input, BitSet 
groupSet, List<AggregateCall> aggCalls) {
     try {
       return new DrillAggregateRel(getCluster(), traitSet, input, 
getGroupSet(), aggCalls);
@@ -71,31 +72,31 @@ public class DrillAggregateRel extends 
DrillAggregateRelBase implements DrillRel
       FieldReference fr = new FieldReference(childFields.get(group), 
ExpressionPosition.UNKNOWN);
       builder.addKey(fr, fr);
     }
-    
+
     for (Ord<AggregateCall> aggCall : Ord.zip(aggCalls)) {
       FieldReference ref = new 
FieldReference(fields.get(groupSet.cardinality() + aggCall.i));
       LogicalExpression expr = toDrill(aggCall.e, childFields, implementor);
       builder.addExpr(ref, expr);
     }
-    
+
     return builder.build();
   }
 
-  
-  
-  
+
+
+
   private LogicalExpression toDrill(AggregateCall call, List<String> fn, 
DrillImplementor implementor) {
     List<LogicalExpression> args = Lists.newArrayList();
     for(Integer i : call.getArgList()){
       args.add(new FieldReference(fn.get(i)));
     }
-    
+
     // for count(1).
     if(args.isEmpty()) args.add(new ValueExpressions.LongExpression(1l));
     LogicalExpression expr = 
FunctionCallFactory.createExpression(call.getAggregation().getName().toLowerCase(),
 ExpressionPosition.UNKNOWN, args);
     return expr;
   }
-  
+
   public static DrillAggregateRel convert(GroupingAggregate groupBy, 
ConversionContext value)
       throws InvalidRelException {
     throw new UnsupportedOperationException();

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillFilterRel.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillFilterRel.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillFilterRel.java
index fee62c9..63bef44 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillFilterRel.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillFilterRel.java
@@ -47,7 +47,7 @@ public class DrillFilterRel extends DrillFilterRelBase 
implements DrillRel {
     f.setInput(input);
     return f;
   }
-  
+
   public static DrillFilterRel convert(Filter filter, ConversionContext 
context) throws InvalidRelException{
     RelNode input = context.toRel(filter.getInput());
     return new DrillFilterRel(context.getCluster(), 
context.getLogicalTraits(), input, context.toRex(filter.getExpr()));

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillFilterRule.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillFilterRule.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillFilterRule.java
index 8f18838..cb47adb 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillFilterRule.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillFilterRule.java
@@ -22,7 +22,6 @@ import org.eigenbase.rel.RelNode;
 import org.eigenbase.relopt.Convention;
 import org.eigenbase.relopt.RelOptRule;
 import org.eigenbase.relopt.RelOptRuleCall;
-import org.eigenbase.relopt.RelTraitSet;
 
 /**
  * Rule that converts a {@link org.eigenbase.rel.FilterRel} to a Drill 
"filter" operation.

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillImplementor.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillImplementor.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillImplementor.java
index 6a7c8e4..7fff6e9 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillImplementor.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillImplementor.java
@@ -33,21 +33,21 @@ import com.google.common.collect.Sets;
  * Context for converting a tree of {@link DrillRel} nodes into a Drill 
logical plan.
  */
 public class DrillImplementor {
-  
+
   static final org.slf4j.Logger logger = 
org.slf4j.LoggerFactory.getLogger(DrillImplementor.class);
-  
+
   private Set<DrillTable> tables = Sets.newHashSet();
   private Set<String> storageEngineNames = Sets.newHashSet();
   private LogicalPlanBuilder planBuilder = new LogicalPlanBuilder();
   private LogicalPlan plan;
   private final DrillParseContext context;
-  
-  
+
+
   public DrillImplementor(DrillParseContext context, ResultMode mode) {
     planBuilder.planProperties(PlanType.APACHE_DRILL_LOGICAL, 1, 
DrillImplementor.class.getName(), "", mode);
     this.context = context;
   }
-  
+
   public DrillParseContext getContext(){
     return context;
   }
@@ -62,7 +62,7 @@ public class DrillImplementor {
     LogicalOperator rootLOP = root.implement(this);
     rootLOP.accept(new AddOpsVisitor(), null);
   }
-  
+
   public LogicalPlan getPlan(){
     if(plan == null){
       plan = planBuilder.build();
@@ -74,7 +74,7 @@ public class DrillImplementor {
   public LogicalOperator visitChild(DrillRel parent, int ordinal, RelNode 
child) {
     return ((DrillRel) child).implement(this);
   }
-  
+
   private class AddOpsVisitor extends AbstractLogicalVisitor<Void, Void, 
RuntimeException> {
     @Override
     public Void visitOp(LogicalOperator op, Void value) throws 
RuntimeException {

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillJoinRel.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillJoinRel.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillJoinRel.java
index 151318e..8d3e1bf 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillJoinRel.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillJoinRel.java
@@ -18,8 +18,6 @@
 package org.apache.drill.exec.planner.logical;
 
 import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashSet;
 import java.util.List;
 
 import org.apache.drill.common.expression.FieldReference;
@@ -30,13 +28,11 @@ import org.apache.drill.common.logical.data.Project;
 import org.apache.drill.exec.planner.common.DrillJoinRelBase;
 import org.apache.drill.exec.planner.torel.ConversionContext;
 import org.eigenbase.rel.InvalidRelException;
-import org.eigenbase.rel.JoinRelBase;
 import org.eigenbase.rel.JoinRelType;
 import org.eigenbase.rel.RelNode;
 import org.eigenbase.relopt.RelOptCluster;
 import org.eigenbase.relopt.RelOptUtil;
 import org.eigenbase.relopt.RelTraitSet;
-import org.eigenbase.reltype.RelDataType;
 import org.eigenbase.reltype.RelDataTypeField;
 import org.eigenbase.rex.RexNode;
 import org.eigenbase.rex.RexUtil;

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillLimitRel.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillLimitRel.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillLimitRel.java
index 9f08117..75a38d8 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillLimitRel.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillLimitRel.java
@@ -23,8 +23,6 @@ import java.util.List;
 import org.apache.drill.common.logical.data.Limit;
 import org.apache.drill.common.logical.data.LogicalOperator;
 import org.apache.drill.exec.planner.common.DrillLimitRelBase;
-import org.apache.drill.exec.planner.logical.DrillImplementor;
-import org.apache.drill.exec.planner.logical.DrillRel;
 import org.apache.drill.exec.planner.torel.ConversionContext;
 import org.eigenbase.rel.InvalidRelException;
 import org.eigenbase.rel.RelNode;
@@ -48,7 +46,7 @@ public class DrillLimitRel extends DrillLimitRelBase 
implements DrillRel {
   @Override
   public LogicalOperator implement(DrillImplementor implementor) {
     LogicalOperator inputOp = implementor.visitChild(this, 0, getChild());
-    
+
     // First offset to include into results (inclusive). Null implies it is 
starting from offset 0
     int first = offset != null ? Math.max(0, RexLiteral.intValue(offset)) : 0;
 
@@ -59,7 +57,7 @@ public class DrillLimitRel extends DrillLimitRelBase 
implements DrillRel {
     limit.setInput(inputOp);
     return limit;
   }
-  
+
   public static DrillLimitRel convert(Limit limit, ConversionContext context) 
throws InvalidRelException{
     RelNode input = context.toRel(limit.getInput());
     RexNode first = 
context.getRexBuilder().makeExactLiteral(BigDecimal.valueOf(limit.getFirst()), 
context.getTypeFactory().createSqlType(SqlTypeName.INTEGER));

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillMergeProjectRule.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillMergeProjectRule.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillMergeProjectRule.java
index 7abc28b..b97d83e 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillMergeProjectRule.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillMergeProjectRule.java
@@ -18,17 +18,14 @@
 package org.apache.drill.exec.planner.logical;
 
 
+import org.apache.drill.exec.expr.fn.FunctionImplementationRegistry;
 import org.eigenbase.rel.ProjectRelBase;
 import org.eigenbase.rel.RelFactories.ProjectFactory;
-
 import org.eigenbase.rel.rules.MergeProjectRule;
 import org.eigenbase.relopt.RelOptRuleCall;
-
 import org.eigenbase.rex.RexCall;
 import org.eigenbase.rex.RexNode;
 
-import org.apache.drill.exec.expr.fn.FunctionImplementationRegistry;
-
 public class DrillMergeProjectRule extends MergeProjectRule {
 
   private FunctionImplementationRegistry functionRegistry;

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillOptiq.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillOptiq.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillOptiq.java
index 891b889..0627dcd 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillOptiq.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillOptiq.java
@@ -32,8 +32,8 @@ import org.apache.drill.common.expression.SchemaPath;
 import org.apache.drill.common.expression.TypedNullConstant;
 import org.apache.drill.common.expression.ValueExpressions;
 import org.apache.drill.common.expression.ValueExpressions.QuotedString;
-import org.apache.drill.common.types.TypeProtos.MajorType;
 import org.apache.drill.common.types.TypeProtos;
+import org.apache.drill.common.types.TypeProtos.MajorType;
 import org.apache.drill.common.types.TypeProtos.MinorType;
 import org.apache.drill.common.types.Types;
 import org.apache.drill.exec.planner.StarColumnHelper;

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillProjectRel.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillProjectRel.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillProjectRel.java
index c3eb3fb..14ea894 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillProjectRel.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillProjectRel.java
@@ -48,6 +48,7 @@ public class DrillProjectRel extends DrillProjectRelBase 
implements DrillRel {
   }
 
 
+  @Override
   public ProjectRelBase copy(RelTraitSet traitSet, RelNode input, 
List<RexNode> exps, RelDataType rowType) {
     return new DrillProjectRel(getCluster(), traitSet, input, exps, rowType);
   }

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillReduceAggregatesRule.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillReduceAggregatesRule.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillReduceAggregatesRule.java
index 8305dd8..93fff35 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillReduceAggregatesRule.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillReduceAggregatesRule.java
@@ -39,7 +39,6 @@ import org.eigenbase.reltype.RelDataType;
 import org.eigenbase.reltype.RelDataTypeFactory;
 import org.eigenbase.reltype.RelDataTypeField;
 import org.eigenbase.rex.RexBuilder;
-import org.eigenbase.rex.RexCall;
 import org.eigenbase.rex.RexLiteral;
 import org.eigenbase.rex.RexNode;
 import org.eigenbase.sql.SqlAggFunction;
@@ -86,6 +85,7 @@ public class DrillReduceAggregatesRule extends RelOptRule {
     return containsAvgStddevVarCall(oldAggRel.getAggCallList());
   }
 
+  @Override
   public void onMatch(RelOptRuleCall ruleCall) {
     AggregateRelBase oldAggRel = (AggregateRelBase) ruleCall.rels[0];
     reduceAggs(ruleCall, oldAggRel);

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillRuleSets.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillRuleSets.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillRuleSets.java
index 65fa2d7..dbb85b2 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillRuleSets.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillRuleSets.java
@@ -44,7 +44,6 @@ import org.eigenbase.rel.RelFactories;
 import org.eigenbase.rel.rules.PushFilterPastJoinRule;
 import org.eigenbase.rel.rules.PushFilterPastProjectRule;
 import org.eigenbase.rel.rules.PushJoinThroughJoinRule;
-import org.eigenbase.rel.rules.PushProjectPastFilterRule;
 import org.eigenbase.rel.rules.PushProjectPastJoinRule;
 import org.eigenbase.rel.rules.RemoveDistinctAggregateRule;
 import org.eigenbase.rel.rules.RemoveDistinctRule;
@@ -113,7 +112,7 @@ public class DrillRuleSets {
     return DRILL_BASIC_RULES;
   }
 
-  /* 
+  /*
   public static final RuleSet DRILL_PHYSICAL_MEM = new 
DrillRuleSet(ImmutableSet.of( //
 //      DrillScanRule.INSTANCE,
 //      DrillFilterRule.INSTANCE,
@@ -169,9 +168,9 @@ public class DrillRuleSets {
     ));
 
   public static final RuleSet getPhysicalRules(QueryContext qcontext) {
-    List<RelOptRule> ruleList = new ArrayList<RelOptRule>(); 
+    List<RelOptRule> ruleList = new ArrayList<RelOptRule>();
+
 
-    
     ruleList.add(ConvertCountToDirectScan.AGG_ON_PROJ_ON_SCAN);
     ruleList.add(ConvertCountToDirectScan.AGG_ON_SCAN);
     ruleList.add(SortConvertPrule.INSTANCE);
@@ -186,26 +185,26 @@ public class DrillRuleSets {
     ruleList.add(PushLimitToTopN.INSTANCE);
     ruleList.add(UnionAllPrule.INSTANCE);
     // ruleList.add(UnionDistinctPrule.INSTANCE);
-    
+
     PlannerSettings ps = qcontext.getPlannerSettings();
-    
+
     if (ps.isHashAggEnabled()) {
-      ruleList.add(HashAggPrule.INSTANCE);        
+      ruleList.add(HashAggPrule.INSTANCE);
     }
-    
+
     if (ps.isStreamAggEnabled()) {
-      ruleList.add(StreamAggPrule.INSTANCE);        
+      ruleList.add(StreamAggPrule.INSTANCE);
     }
-    
+
     if (ps.isHashJoinEnabled()) {
-      ruleList.add(HashJoinPrule.INSTANCE);        
+      ruleList.add(HashJoinPrule.INSTANCE);
     }
-    
+
     if (ps.isMergeJoinEnabled()) {
-      ruleList.add(MergeJoinPrule.INSTANCE);        
+      ruleList.add(MergeJoinPrule.INSTANCE);
     }
-  
-    return new DrillRuleSet(ImmutableSet.copyOf(ruleList)); 
+
+    return new DrillRuleSet(ImmutableSet.copyOf(ruleList));
   }
 
   public static RuleSet create(ImmutableSet<RelOptRule> rules) {

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScanRel.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScanRel.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScanRel.java
index d6bbcd3..5a0cc08 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScanRel.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScanRel.java
@@ -18,21 +18,15 @@
 package org.apache.drill.exec.planner.logical;
 
 import java.io.IOException;
-import java.util.Collections;
 import java.util.List;
 
-import com.google.common.base.Preconditions;
-import com.google.common.base.Predicate;
-import com.google.common.collect.Iterables;
 import org.apache.drill.common.JSONOptions;
 import org.apache.drill.common.exceptions.DrillRuntimeException;
-import org.apache.drill.common.exceptions.ExecutionSetupException;
 import org.apache.drill.common.expression.SchemaPath;
 import org.apache.drill.common.logical.data.LogicalOperator;
 import org.apache.drill.common.logical.data.Scan;
 import org.apache.drill.exec.physical.base.AbstractGroupScan;
 import org.apache.drill.exec.physical.base.GroupScan;
-import org.apache.drill.exec.physical.base.PhysicalOperator;
 import org.apache.drill.exec.physical.base.ScanStats;
 import org.apache.drill.exec.planner.common.DrillScanRelBase;
 import org.apache.drill.exec.planner.cost.DrillCostBase.DrillCostFactory;
@@ -46,6 +40,10 @@ import org.eigenbase.relopt.RelOptTable;
 import org.eigenbase.relopt.RelTraitSet;
 import org.eigenbase.reltype.RelDataType;
 
+import com.google.common.base.Preconditions;
+import com.google.common.base.Predicate;
+import com.google.common.collect.Iterables;
+
 /**
  * GroupScan of a Drill table.
  */

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScanRule.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScanRule.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScanRule.java
index 4896ac9..d71019a 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScanRule.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScanRule.java
@@ -19,8 +19,6 @@ package org.apache.drill.exec.planner.logical;
 
 import net.hydromatic.optiq.rules.java.JavaRules.EnumerableTableAccessRel;
 
-import org.apache.drill.exec.planner.common.DrillScanRelBase;
-import org.eigenbase.relopt.Convention;
 import org.eigenbase.relopt.RelOptRule;
 import org.eigenbase.relopt.RelOptRuleCall;
 import org.eigenbase.relopt.RelTraitSet;

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScreenRel.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScreenRel.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScreenRel.java
index a63cae0..28f4205 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScreenRel.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillScreenRel.java
@@ -39,7 +39,7 @@ public class DrillScreenRel extends DrillScreenRelBase 
implements DrillRel {
   public RelNode copy(RelTraitSet traitSet, List<RelNode> inputs) {
     return new DrillScreenRel(getCluster(), traitSet, sole(inputs));
   }
-  
+
   @Override
   public LogicalOperator implement(DrillImplementor implementor) {
     LogicalOperator childOp = implementor.visitChild(this, 0, getChild());

http://git-wip-us.apache.org/repos/asf/incubator-drill/blob/39990292/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillSortRel.java
----------------------------------------------------------------------
diff --git 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillSortRel.java
 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillSortRel.java
index 04af9d5..830f5f2 100644
--- 
a/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillSortRel.java
+++ 
b/exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillSortRel.java
@@ -62,19 +62,19 @@ public class DrillSortRel extends SortRel implements 
DrillRel {
   public LogicalOperator implement(DrillImplementor implementor) {
     final Order.Builder builder = Order.builder();
     builder.setInput(implementor.visitChild(this, 0, getChild()));
-    
+
     final List<String> childFields = getChild().getRowType().getFieldNames();
     for(RelFieldCollation fieldCollation : 
this.collation.getFieldCollations()){
-      builder.addOrdering(fieldCollation.getDirection(), 
+      builder.addOrdering(fieldCollation.getDirection(),
           new FieldReference(childFields.get(fieldCollation.getFieldIndex())),
           fieldCollation.nullDirection);
     }
     return builder.build();
   }
 
-  
+
   public static RelNode convert(Order order, ConversionContext context) throws 
InvalidRelException{
-    
+
     // if there are compound expressions in the order by, we need to convert 
into projects on either side.
     RelNode input = context.toRel(order.getInput());
     List<String> fields = input.getRowType().getFieldNames();
@@ -86,9 +86,9 @@ public class DrillSortRel extends SortRel implements DrillRel 
{
       fieldMap.put(field, i);
       i++;
     }
-    
+
     List<RelFieldCollation> collations = Lists.newArrayList();
-    
+
     for(Ordering o : order.getOrderings()){
       String fieldName = ExprHelper.getFieldName(o.getExpr());
       int fieldId = fieldMap.get(fieldName);
@@ -96,5 +96,5 @@ public class DrillSortRel extends SortRel implements DrillRel 
{
     }
     return new DrillSortRel(context.getCluster(), context.getLogicalTraits(), 
input, RelCollationImpl.of(collations));
   }
-  
+
 }

Reply via email to