Comments and format

Author: yhuai

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

@@ -279,7 +279,7 @@ private[hive] class HiveMetastoreCatalog(val client: ClientInterface, hive: Hive
           hadoopFsRelation.partitionColumns.nonEmpty
         } catch {
           case _: java.io.FileNotFoundException =>
-            // When we reach here, it is possible that underlying dir for the table
+            // When we reach here, it is possible that the underlying dir for the table
             // has not been created. So, there is no partition.
             false
         }
@@ -302,8 +302,9 @@ private[hive] class HiveMetastoreCatalog(val client: ClientInterface, hive: Hive
       HiveTable(
         specifiedDatabase = Option(dbName),
         name = tblName,
-        // Since the table is not partitioned, we use dataSchema instead of using schema,
-        // which will trigger partition discovery on the path that may not be created.
+        // Since the table is not partitioned, we use dataSchema instead of using schema.
+        // Using schema which will trigger partition discovery on the path that
+        // may not be created.
         schema = schemaToHiveColumn(relation.dataSchema),
         partitionColumns = Nil,
         tableType = tableType,

sql/hive/src/test/scala/org/apache/spark/sql/hive/MetastoreDataSourcesSuite.scala

@@ -707,9 +707,7 @@ class MetastoreDataSourcesSuite extends QueryTest with SQLTestUtils with TestHiv
       options = Map("path" -> "an invalid path"),
       isExternal = false)
 
-    invalidateTable("test_drop_table_with_invalid_path")
-
-    sql("DROP TABLE IF EXISTS test_drop_table_with_invalid_path")
+    sql("DROP TABLE test_drop_table_with_invalid_path")
   }
 
   test("SPARK-6024 wide schema support") {
@@ -730,7 +728,6 @@ class MetastoreDataSourcesSuite extends QueryTest with SQLTestUtils with TestHiv
 
         invalidateTable("wide_schema")
 
-
         val actualSchema = table("wide_schema").schema
         assert(schema === actualSchema)
       }