diff --git a/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveExternalCatalog.scala b/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveExternalCatalog.scala
index ba48facff2933..918459fe7c246 100644
--- a/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveExternalCatalog.scala
+++ b/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveExternalCatalog.scala
@@ -681,9 +681,11 @@ private[spark] class HiveExternalCatalog(conf: SparkConf, hadoopConf: Configurat
       }
     }
 
-    // construct Spark's statistics from information in Hive metastore
+    // Restore Spark's statistics from information in Metastore.
     val statsProps = table.properties.filterKeys(_.startsWith(STATISTICS_PREFIX))
 
+    // Currently we have two sources of statistics: one from Hive and the other from Spark.
+    // In our design, if Spark's statistics is available, we respect it over Hive's statistics.
     if (statsProps.nonEmpty) {
       val colStats = new mutable.HashMap[String, ColumnStat]
 
diff --git a/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala b/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala
index b970be740ab51..be024adac8eb0 100644
--- a/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala
+++ b/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala
@@ -434,6 +434,8 @@ private[hive] class HiveClientImpl(
       }
       val comment = properties.get("comment")
 
+      // Here we are reading statistics from Hive.
+      // Note that this statistics could be overridden by Spark's statistics if that's available.
       val totalSize = properties.get(StatsSetupConst.TOTAL_SIZE).map(BigInt(_))
       val rawDataSize = properties.get(StatsSetupConst.RAW_DATA_SIZE).map(BigInt(_))
       val rowCount = properties.get(StatsSetupConst.ROW_COUNT).map(BigInt(_)).filter(_ >= 0)