Cleanups.

Author: concretevitamin

sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveMetastoreCatalog.scala

@@ -271,6 +271,7 @@ private[hive] case class MetastoreRelation
 
   // TODO: are there any stats in hiveQlTable.getSkewedInfo that we can use?
   @transient override lazy val estimates = new Estimates {
+    // TODO: check if this estimate is valid for tables after partition pruning.
     // Size getters adapted from SizeBasedBigTableSelectorForAutoSMJ.java in Hive (version 0.13).
     override lazy val sizeInBytes: Long =
       maybeGetSize(hiveConf, hiveQlTable.getProperty("totalSize"), path)

sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/HiveQuerySuite.scala

@@ -17,14 +17,11 @@
 
 package org.apache.spark.sql.hive.execution
 
-import org.apache.spark.sql.execution.{BuildRight, BroadcastHashJoin}
-
 import scala.util.Try
 
-import org.apache.spark.sql.{SchemaRDD, Row}
-import org.apache.spark.sql.hive.MetastoreRelation
 import org.apache.spark.sql.hive.test.TestHive
 import org.apache.spark.sql.hive.test.TestHive._
+import org.apache.spark.sql.{Row, SchemaRDD}
 
 case class TestData(a: Int, b: String)